]> git.saurik.com Git - wxWidgets.git/blobdiff - src/generic/grid.cpp
Include wx/containr.h according to precompiled headers of wx/wx.h (with other minor...
[wxWidgets.git] / src / generic / grid.cpp
index 097a75dcafef49deabfab1da02b52ab8a9a6fb6e..6794b49c3e5d0c9499dee7fa69e1cbd48b300080 100644 (file)
@@ -1,41 +1,23 @@
 ///////////////////////////////////////////////////////////////////////////
-// Name:        generic/grid.cpp
+// Name:        src/generic/grid.cpp
 // Purpose:     wxGrid and related classes
 // Author:      Michael Bedward (based on code by Julian Smart, Robin Dunn)
-// Modified by: Robin Dunn, Vadim Zeitlin
+// Modified by: Robin Dunn, Vadim Zeitlin, Santiago Palacios
 // Created:     1/08/1999
 // RCS-ID:      $Id$
 // Copyright:   (c) Michael Bedward (mbedward@ozemail.com.au)
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-// ============================================================================
-// declarations
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
-
-#ifdef __GNUG__
-    #pragma implementation "grid.h"
-#endif
-
-// For compilers that support precompilatixon, includes "wx/wx.h".
+// For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
-#include "wx/defs.h"
-
 #ifdef __BORLANDC__
     #pragma hdrstop
 #endif
 
 #if wxUSE_GRID
 
-#if !defined(wxUSE_NEW_GRID) || !(wxUSE_NEW_GRID)
-    #include "gridg.cpp"
-#else // wxUSE_NEW_GRID
-
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
     #include "wx/dcclient.h"
     #include "wx/checkbox.h"
     #include "wx/combobox.h"
     #include "wx/valtext.h"
+    #include "wx/intl.h"
+    #include "wx/math.h"
+    #include "wx/listbox.h"
 #endif
 
 #include "wx/textfile.h"
 #include "wx/spinctrl.h"
 #include "wx/tokenzr.h"
+#include "wx/renderer.h"
 
 #include "wx/grid.h"
 #include "wx/generic/gridsel.h"
@@ -73,7 +59,8 @@
 // array classes
 // ----------------------------------------------------------------------------
 
-WX_DEFINE_EXPORTED_ARRAY(wxGridCellAttr *, wxArrayAttrs);
+WX_DEFINE_ARRAY_WITH_DECL_PTR(wxGridCellAttr *, wxArrayAttrs,
+                                 class WXDLLIMPEXP_ADV);
 
 struct wxGridCellWithAttr
 {
@@ -89,9 +76,14 @@ struct wxGridCellWithAttr
 
     wxGridCellCoords coords;
     wxGridCellAttr  *attr;
+
+// Cannot do this:
+//  DECLARE_NO_COPY_CLASS(wxGridCellWithAttr)
+// without rewriting the macros, which require a public copy constructor.
 };
 
-WX_DECLARE_EXPORTED_OBJARRAY(wxGridCellWithAttr, wxGridCellWithAttrArray);
+WX_DECLARE_OBJARRAY_WITH_DECL(wxGridCellWithAttr, wxGridCellWithAttrArray,
+                              class WXDLLIMPEXP_ADV);
 
 #include "wx/arrimpl.cpp"
 
@@ -106,12 +98,14 @@ DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_LEFT_CLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_RIGHT_CLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_LEFT_DCLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_RIGHT_DCLICK)
+DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_BEGIN_DRAG)
 DEFINE_EVENT_TYPE(wxEVT_GRID_LABEL_LEFT_CLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_LABEL_RIGHT_CLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_LABEL_LEFT_DCLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_LABEL_RIGHT_DCLICK)
 DEFINE_EVENT_TYPE(wxEVT_GRID_ROW_SIZE)
 DEFINE_EVENT_TYPE(wxEVT_GRID_COL_SIZE)
+DEFINE_EVENT_TYPE(wxEVT_GRID_COL_MOVE)
 DEFINE_EVENT_TYPE(wxEVT_GRID_RANGE_SELECT)
 DEFINE_EVENT_TYPE(wxEVT_GRID_CELL_CHANGE)
 DEFINE_EVENT_TYPE(wxEVT_GRID_SELECT_CELL)
@@ -123,7 +117,7 @@ DEFINE_EVENT_TYPE(wxEVT_GRID_EDITOR_CREATED)
 // private classes
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGridRowLabelWindow : public wxWindow
+class WXDLLIMPEXP_ADV wxGridRowLabelWindow : public wxWindow
 {
 public:
     wxGridRowLabelWindow() { m_owner = (wxGrid *)NULL; }
@@ -138,13 +132,15 @@ private:
     void OnMouseWheel( wxMouseEvent& event );
     void OnKeyDown( wxKeyEvent& event );
     void OnKeyUp( wxKeyEvent& );
+    void OnChar( wxKeyEvent& );
 
     DECLARE_DYNAMIC_CLASS(wxGridRowLabelWindow)
     DECLARE_EVENT_TABLE()
+    DECLARE_NO_COPY_CLASS(wxGridRowLabelWindow)
 };
 
 
-class WXDLLEXPORT wxGridColLabelWindow : public wxWindow
+class WXDLLIMPEXP_ADV wxGridColLabelWindow : public wxWindow
 {
 public:
     wxGridColLabelWindow() { m_owner = (wxGrid *)NULL; }
@@ -154,18 +150,20 @@ public:
 private:
     wxGrid   *m_owner;
 
-    void OnPaint( wxPaintEvent &event );
+    void OnPaint( wxPaintEventevent );
     void OnMouseEvent( wxMouseEvent& event );
     void OnMouseWheel( wxMouseEvent& event );
     void OnKeyDown( wxKeyEvent& event );
     void OnKeyUp( wxKeyEvent& );
+    void OnChar( wxKeyEvent& );
 
     DECLARE_DYNAMIC_CLASS(wxGridColLabelWindow)
     DECLARE_EVENT_TABLE()
+    DECLARE_NO_COPY_CLASS(wxGridColLabelWindow)
 };
 
 
-class WXDLLEXPORT wxGridCornerLabelWindow : public wxWindow
+class WXDLLIMPEXP_ADV wxGridCornerLabelWindow : public wxWindow
 {
 public:
     wxGridCornerLabelWindow() { m_owner = (wxGrid *)NULL; }
@@ -179,30 +177,34 @@ private:
     void OnMouseWheel( wxMouseEvent& event );
     void OnKeyDown( wxKeyEvent& event );
     void OnKeyUp( wxKeyEvent& );
+    void OnChar( wxKeyEvent& );
     void OnPaint( wxPaintEvent& event );
 
     DECLARE_DYNAMIC_CLASS(wxGridCornerLabelWindow)
     DECLARE_EVENT_TABLE()
+    DECLARE_NO_COPY_CLASS(wxGridCornerLabelWindow)
 };
 
-class WXDLLEXPORT wxGridWindow : public wxWindow
+class WXDLLIMPEXP_ADV wxGridWindow : public wxWindow
 {
 public:
     wxGridWindow()
     {
-        m_owner = (wxGrid *)NULL;
-        m_rowLabelWin = (wxGridRowLabelWindow *)NULL;
-        m_colLabelWin = (wxGridColLabelWindow *)NULL;
+        m_owner = NULL;
+        m_rowLabelWin = NULL;
+        m_colLabelWin = NULL;
     }
 
     wxGridWindow( wxGrid *parent,
                   wxGridRowLabelWindow *rowLblWin,
                   wxGridColLabelWindow *colLblWin,
                   wxWindowID id, const wxPoint &pos, const wxSize &size );
-    ~wxGridWindow();
+    ~wxGridWindow() {}
 
     void ScrollWindow( int dx, int dy, const wxRect *rect );
 
+    wxGrid* GetOwner() { return m_owner; }
+
 private:
     wxGrid                   *m_owner;
     wxGridRowLabelWindow     *m_rowLabelWin;
@@ -213,50 +215,61 @@ private:
     void OnMouseEvent( wxMouseEvent& event );
     void OnKeyDown( wxKeyEvent& );
     void OnKeyUp( wxKeyEvent& );
+    void OnChar( wxKeyEvent& );
     void OnEraseBackground( wxEraseEvent& );
-
+    void OnFocus( wxFocusEvent& );
 
     DECLARE_DYNAMIC_CLASS(wxGridWindow)
     DECLARE_EVENT_TABLE()
+    DECLARE_NO_COPY_CLASS(wxGridWindow)
 };
 
 
-
 class wxGridCellEditorEvtHandler : public wxEvtHandler
 {
 public:
-    wxGridCellEditorEvtHandler()
-        : m_grid(0), m_editor(0)
-        { }
     wxGridCellEditorEvtHandler(wxGrid* grid, wxGridCellEditor* editor)
-        : m_grid(grid), m_editor(editor)
-        { }
+        : m_grid(grid),
+          m_editor(editor),
+          m_inSetFocus(false)
+    {
+    }
 
+    void OnKillFocus(wxFocusEvent& event);
     void OnKeyDown(wxKeyEvent& event);
     void OnChar(wxKeyEvent& event);
 
+    void SetInSetFocus(bool inSetFocus) { m_inSetFocus = inSetFocus; }
+
 private:
-    wxGrid*             m_grid;
-    wxGridCellEditor*   m_editor;
-    DECLARE_DYNAMIC_CLASS(wxGridCellEditorEvtHandler)
+    wxGrid             *m_grid;
+    wxGridCellEditor   *m_editor;
+
+    // Work around the fact that a focus kill event can be sent to
+    // a combobox within a set focus event.
+    bool                m_inSetFocus;
+
     DECLARE_EVENT_TABLE()
+    DECLARE_DYNAMIC_CLASS(wxGridCellEditorEvtHandler)
+    DECLARE_NO_COPY_CLASS(wxGridCellEditorEvtHandler)
 };
 
 
-IMPLEMENT_DYNAMIC_CLASS( wxGridCellEditorEvtHandler, wxEvtHandler )
+IMPLEMENT_ABSTRACT_CLASS(wxGridCellEditorEvtHandler, wxEvtHandler)
+
 BEGIN_EVENT_TABLE( wxGridCellEditorEvtHandler, wxEvtHandler )
+    EVT_KILL_FOCUS( wxGridCellEditorEvtHandler::OnKillFocus )
     EVT_KEY_DOWN( wxGridCellEditorEvtHandler::OnKeyDown )
     EVT_CHAR( wxGridCellEditorEvtHandler::OnChar )
 END_EVENT_TABLE()
 
 
-
 // ----------------------------------------------------------------------------
 // the internal data representation used by wxGridCellAttrProvider
 // ----------------------------------------------------------------------------
 
 // this class stores attributes set for cells
-class WXDLLEXPORT wxGridCellAttrData
+class WXDLLIMPEXP_ADV wxGridCellAttrData
 {
 public:
     void SetAttr(wxGridCellAttr *attr, int row, int col);
@@ -272,11 +285,11 @@ private:
 };
 
 // this class stores attributes set for rows or columns
-class WXDLLEXPORT wxGridRowOrColAttrData
+class WXDLLIMPEXP_ADV wxGridRowOrColAttrData
 {
 public:
     // empty ctor to suppress warnings
-    wxGridRowOrColAttrData() { }
+    wxGridRowOrColAttrData() {}
     ~wxGridRowOrColAttrData();
 
     void SetAttr(wxGridCellAttr *attr, int rowOrCol);
@@ -290,7 +303,7 @@ private:
 
 // NB: this is just a wrapper around 3 objects: one which stores cell
 //     attributes, and 2 others for row/col ones
-class WXDLLEXPORT wxGridCellAttrProviderData
+class WXDLLIMPEXP_ADV wxGridCellAttrProviderData
 {
 public:
     wxGridCellAttrData m_cellAttrs;
@@ -309,7 +322,7 @@ struct wxGridDataTypeInfo
                        wxGridCellRenderer* renderer,
                        wxGridCellEditor* editor)
         : m_typeName(typeName), m_renderer(renderer), m_editor(editor)
-        { }
+        {}
 
     ~wxGridDataTypeInfo()
     {
@@ -320,13 +333,16 @@ struct wxGridDataTypeInfo
     wxString            m_typeName;
     wxGridCellRenderer* m_renderer;
     wxGridCellEditor*   m_editor;
+
+    DECLARE_NO_COPY_CLASS(wxGridDataTypeInfo)
 };
 
 
-WX_DEFINE_EXPORTED_ARRAY(wxGridDataTypeInfo*, wxGridDataTypeInfoArray);
+WX_DEFINE_ARRAY_WITH_DECL_PTR(wxGridDataTypeInfo*, wxGridDataTypeInfoArray,
+                                 class WXDLLIMPEXP_ADV);
 
 
-class WXDLLEXPORT wxGridTypeRegistry
+class WXDLLIMPEXP_ADV wxGridTypeRegistry
 {
 public:
   wxGridTypeRegistry() {}
@@ -355,6 +371,7 @@ private:
     wxGridDataTypeInfoArray m_typeinfo;
 };
 
+
 // ----------------------------------------------------------------------------
 // conditional compilation
 // ----------------------------------------------------------------------------
@@ -371,14 +388,14 @@ private:
 #ifdef DEBUG_ATTR_CACHE
     static size_t gs_nAttrCacheHits = 0;
     static size_t gs_nAttrCacheMisses = 0;
-#endif // DEBUG_ATTR_CACHE
+#endif
 
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 
 wxGridCellCoords wxGridNoCellCoords( -1, -1 );
-wxRect           wxGridNoCellRect( -1, -1, -1, -1 );
+wxRect wxGridNoCellRect( -1, -1, -1, -1 );
 
 // scroll line size
 // TODO: this doesn't work at all, grid cells have different sizes and approx
@@ -399,6 +416,7 @@ static const size_t GRID_SCROLL_LINE_Y = GRID_SCROLL_LINE_X;
 // in these hash tables is the number of rows/columns)
 static const int GRID_HASH_SIZE = 100;
 
+#if 0
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
@@ -412,6 +430,7 @@ static inline int GetScrollY(int y)
 {
     return (y + GRID_SCROLL_LINE_Y - 1) / GRID_SCROLL_LINE_Y;
 }
+#endif
 
 // ============================================================================
 // implementation
@@ -424,9 +443,9 @@ static inline int GetScrollY(int y)
 wxGridCellEditor::wxGridCellEditor()
 {
     m_control = NULL;
+    m_attr = NULL;
 }
 
-
 wxGridCellEditor::~wxGridCellEditor()
 {
     Destroy();
@@ -445,6 +464,10 @@ void wxGridCellEditor::PaintBackground(const wxRect& rectCell,
 {
     // erase the background because we might not fill the cell
     wxClientDC dc(m_control->GetParent());
+    wxGridWindow* gridWindow = wxDynamicCast(m_control->GetParent(), wxGridWindow);
+    if (gridWindow)
+        gridWindow->GetOwner()->PrepareDC(dc);
+
     dc.SetPen(*wxTRANSPARENT_PEN);
     dc.SetBrush(wxBrush(attr->GetBackgroundColour(), wxSOLID));
     dc.DrawRectangle(rectCell);
@@ -457,7 +480,7 @@ void wxGridCellEditor::Destroy()
 {
     if (m_control)
     {
-        m_control->PopEventHandler(TRUE /* delete it*/);
+        m_control->PopEventHandler( true /* delete it*/ );
 
         m_control->Destroy();
         m_control = NULL;
@@ -466,8 +489,8 @@ void wxGridCellEditor::Destroy()
 
 void wxGridCellEditor::Show(bool show, wxGridCellAttr *attr)
 {
-    wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+    wxASSERT_MSG(m_control, wxT("The wxGridCellEditor must be created first!"));
+
     m_control->Show(show);
 
     if ( show )
@@ -481,8 +504,11 @@ void wxGridCellEditor::Show(bool show, wxGridCellAttr *attr)
             m_colBgOld = m_control->GetBackgroundColour();
             m_control->SetBackgroundColour(attr->GetBackgroundColour());
 
+// Workaround for GTK+1 font setting problem on some platforms
+#if !defined(__WXGTK__) || defined(__WXGTK20__)
             m_fontOld = m_control->GetFont();
             m_control->SetFont(attr->GetFont());
+#endif
 
             // can't do anything more in the base class version, the other
             // attributes may only be used by the derived classes
@@ -503,18 +529,21 @@ void wxGridCellEditor::Show(bool show, wxGridCellAttr *attr)
             m_colBgOld = wxNullColour;
         }
 
+// Workaround for GTK+1 font setting problem on some platforms
+#if !defined(__WXGTK__) || defined(__WXGTK20__)
         if ( m_fontOld.Ok() )
         {
             m_control->SetFont(m_fontOld);
             m_fontOld = wxNullFont;
         }
+#endif
     }
 }
 
 void wxGridCellEditor::SetSize(const wxRect& rect)
 {
-    wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+    wxASSERT_MSG(m_control, wxT("The wxGridCellEditor must be created first!"));
+
     m_control->SetSize(rect, wxSIZE_ALLOW_MINUS_ONE);
 }
 
@@ -525,8 +554,47 @@ void wxGridCellEditor::HandleReturn(wxKeyEvent& event)
 
 bool wxGridCellEditor::IsAcceptedKey(wxKeyEvent& event)
 {
-    // accept the simple key presses, not anything with Ctrl/Alt/Meta
-    return !(event.ControlDown() || event.AltDown());
+    bool ctrl = event.ControlDown();
+    bool alt  = event.AltDown();
+
+#ifdef __WXMAC__
+    // On the Mac the Alt key is more like shift and is used for entry of
+    // valid characters, so check for Ctrl and Meta instead.
+    alt = event.MetaDown();
+#endif
+
+    // Assume it's not a valid char if ctrl or alt is down, but if both are
+    // down then it may be because of an AltGr key combination, so let them
+    // through in that case.
+    if ((ctrl || alt) && !(ctrl && alt))
+        return false;
+
+    int key = 0;
+    bool keyOk = true;
+
+#ifdef __WXGTK20__
+    // If it's a F-Key or other special key then it shouldn't start the
+    // editor.
+    if (event.GetKeyCode() >= WXK_START)
+        return false;
+#endif
+#if wxUSE_UNICODE
+    // if the unicode key code is not really a unicode character (it may
+    // be a function key or etc., the platforms appear to always give us a
+    // small value in this case) then fallback to the ASCII key code but
+    // don't do anything for function keys or etc.
+    key = event.GetUnicodeKey();
+    if (key <= 127)
+    {
+        key = event.GetKeyCode();
+        keyOk = (key <= 127);
+    }
+#else
+    key = event.GetKeyCode();
+    keyOk = (key <= 255);
+#endif
+
+    return keyOk;
 }
 
 void wxGridCellEditor::StartingKey(wxKeyEvent& event)
@@ -556,12 +624,15 @@ void wxGridCellTextEditor::Create(wxWindow* parent,
     m_control = new wxTextCtrl(parent, id, wxEmptyString,
                                wxDefaultPosition, wxDefaultSize
 #if defined(__WXMSW__)
-                               , wxTE_PROCESS_TAB | wxTE_MULTILINE |
-                                 wxTE_NO_VSCROLL | wxTE_AUTO_SCROLL
+                               , wxTE_PROCESS_TAB | wxTE_AUTO_SCROLL | wxNO_BORDER
 #endif
                               );
 
-    // TODO: use m_maxChars
+    // set max length allowed in the textctrl, if the parameter was set
+    if (m_maxChars != 0)
+    {
+        ((wxTextCtrl*)m_control)->SetMaxLength(m_maxChars);
+    }
 
     wxGridCellEditor::Create(parent, id, evtHandler);
 }
@@ -569,19 +640,17 @@ void wxGridCellTextEditor::Create(wxWindow* parent,
 void wxGridCellTextEditor::PaintBackground(const wxRect& WXUNUSED(rectCell),
                                            wxGridCellAttr * WXUNUSED(attr))
 {
-    // as we fill the entire client area, don't do anything here to minimize
-    // flicker
+    // as we fill the entire client area,
+    // don't do anything here to minimize flicker
 }
 
 void wxGridCellTextEditor::SetSize(const wxRect& rectOrig)
 {
     wxRect rect(rectOrig);
 
-    // Make the edit control large enough to allow for internal
-    // margins
+    // Make the edit control large enough to allow for internal margins
     //
-    // TODO: remove this if the text ctrl sizing is improved esp. for
-    // unix
+    // TODO: remove this if the text ctrl sizing is improved esp. for unix
     //
 #if defined(__WXGTK__)
     if (rect.x != 0)
@@ -591,34 +660,40 @@ void wxGridCellTextEditor::SetSize(const wxRect& rectOrig)
         rect.width -= 1;
         rect.height -= 1;
     }
-#else // !GTK
-    int extra_x = ( rect.x > 2 )? 2 : 1;
+#elif defined(__WXMSW__)
+    if ( rect.x == 0 )
+        rect.x += 2;
+    else
+        rect.x += 3;
 
-// MB: treat MSW separately here otherwise the caret doesn't show
-// when the editor is in the first row.
-#if defined(__WXMSW__)
-    int extra_y = 2;
+    if ( rect.y == 0 )
+        rect.y += 2;
+    else
+        rect.y += 3;
+
+    rect.width -= 2;
+    rect.height -= 2;
 #else
-    int extra_y = ( rect.y > 2 )? 2 : 1;
-#endif // MSW
+    int extra_x = ( rect.x > 2 ) ? 2 : 1;
+    int extra_y = ( rect.y > 2 ) ? 2 : 1;
+
+    #if defined(__WXMOTIF__)
+        extra_x *= 2;
+        extra_y *= 2;
+    #endif
 
-#if defined(__WXMOTIF__)
-    extra_x *= 2;
-    extra_y *= 2;
-#endif
     rect.SetLeft( wxMax(0, rect.x - extra_x) );
     rect.SetTop( wxMax(0, rect.y - extra_y) );
-    rect.SetRight( rect.GetRight() + 2*extra_x );
-    rect.SetBottom( rect.GetBottom() + 2*extra_y );
-#endif // GTK/!GTK
+    rect.SetRight( rect.GetRight() + 2 * extra_x );
+    rect.SetBottom( rect.GetBottom() + 2 * extra_y );
+#endif
 
     wxGridCellEditor::SetSize(rect);
 }
 
 void wxGridCellTextEditor::BeginEdit(int row, int col, wxGrid* grid)
 {
-    wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+    wxASSERT_MSG(m_control, wxT("The wxGridCellEditor must be created first!"));
 
     m_startValue = grid->GetTable()->GetValue(row, col);
 
@@ -629,34 +704,33 @@ void wxGridCellTextEditor::DoBeginEdit(const wxString& startValue)
 {
     Text()->SetValue(startValue);
     Text()->SetInsertionPointEnd();
+    Text()->SetSelection(-1, -1);
     Text()->SetFocus();
 }
 
-bool wxGridCellTextEditor::EndEdit(int row, int col,
-                                   wxGrid* grid)
+bool wxGridCellTextEditor::EndEdit(int row, int col, wxGrid* grid)
 {
-    wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+    wxASSERT_MSG(m_control, wxT("The wxGridCellEditor must be created first!"));
 
-    bool changed = FALSE;
+    bool changed = false;
     wxString value = Text()->GetValue();
     if (value != m_startValue)
-        changed = TRUE;
+        changed = true;
 
     if (changed)
         grid->GetTable()->SetValue(row, col, value);
 
     m_startValue = wxEmptyString;
-    Text()->SetValue(m_startValue);
+
+    // No point in setting the text of the hidden control
+    //Text()->SetValue(m_startValue);
 
     return changed;
 }
 
-
 void wxGridCellTextEditor::Reset()
 {
-    wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+    wxASSERT_MSG(m_control, wxT("The wxGridCellEditor must be created first!"));
 
     DoReset(m_startValue);
 }
@@ -669,48 +743,47 @@ void wxGridCellTextEditor::DoReset(const wxString& startValue)
 
 bool wxGridCellTextEditor::IsAcceptedKey(wxKeyEvent& event)
 {
-    if ( wxGridCellEditor::IsAcceptedKey(event) )
-    {
-        int keycode = event.GetKeyCode();
-        switch ( keycode )
-        {
-            case WXK_NUMPAD0:
-            case WXK_NUMPAD1:
-            case WXK_NUMPAD2:
-            case WXK_NUMPAD3:
-            case WXK_NUMPAD4:
-            case WXK_NUMPAD5:
-            case WXK_NUMPAD6:
-            case WXK_NUMPAD7:
-            case WXK_NUMPAD8:
-            case WXK_NUMPAD9:
-            case WXK_MULTIPLY:
-            case WXK_NUMPAD_MULTIPLY:
-            case WXK_ADD:
-            case WXK_NUMPAD_ADD:
-            case WXK_SUBTRACT:
-            case WXK_NUMPAD_SUBTRACT:
-            case WXK_DECIMAL:
-            case WXK_NUMPAD_DECIMAL:
-            case WXK_DIVIDE:
-            case WXK_NUMPAD_DIVIDE:
-                return TRUE;
-
-            default:
-                // accept 8 bit chars too if isprint() agrees
-                if ( (keycode < 255) && (isprint(keycode)) )
-                    return TRUE;
-        }
-    }
-
-    return FALSE;
+    return wxGridCellEditor::IsAcceptedKey(event);
 }
 
 void wxGridCellTextEditor::StartingKey(wxKeyEvent& event)
 {
-    if ( !Text()->EmulateKeyPress(event) )
+    // Since this is now happening in the EVT_CHAR event EmulateKeyPress is no
+    // longer an appropriate way to get the character into the text control.
+    // Do it ourselves instead.  We know that if we get this far that we have
+    // a valid character, so not a whole lot of testing needs to be done.
+
+    wxTextCtrl* tc = Text();
+    wxChar ch;
+    long pos;
+
+#if wxUSE_UNICODE
+    ch = event.GetUnicodeKey();
+    if (ch <= 127)
+        ch = (wxChar)event.GetKeyCode();
+#else
+    ch = (wxChar)event.GetKeyCode();
+#endif
+
+    switch (ch)
     {
-        event.Skip();
+        case WXK_DELETE:
+            // delete the character at the cursor
+            pos = tc->GetInsertionPoint();
+            if (pos < tc->GetLastPosition())
+                tc->Remove(pos, pos + 1);
+            break;
+
+        case WXK_BACK:
+            // delete the character before the cursor
+            pos = tc->GetInsertionPoint();
+            if (pos > 0)
+                tc->Remove(pos - 1, pos);
+            break;
+
+        default:
+            tc->WriteText(ch);
+            break;
     }
 }
 
@@ -721,7 +794,7 @@ void wxGridCellTextEditor::HandleReturn( wxKeyEvent&
     // wxMotif needs a little extra help...
     size_t pos = (size_t)( Text()->GetInsertionPoint() );
     wxString s( Text()->GetValue() );
-    s = s.Left(pos) + "\n" + s.Mid(pos);
+    s = s.Left(pos) + wxT("\n") + s.Mid(pos);
     Text()->SetValue(s);
     Text()->SetInsertionPoint( pos );
 #else
@@ -741,17 +814,23 @@ void wxGridCellTextEditor::SetParameters(const wxString& params)
     else
     {
         long tmp;
-        if ( !params.ToLong(&tmp) )
+        if ( params.ToLong(&tmp) )
         {
-            wxLogDebug(_T("Invalid wxGridCellTextEditor parameter string '%s' ignored"), params.c_str());
+            m_maxChars = (size_t)tmp;
         }
         else
         {
-            m_maxChars = (size_t)tmp;
+            wxLogDebug( _T("Invalid wxGridCellTextEditor parameter string '%s' ignored"), params.c_str() );
         }
     }
 }
 
+// return the value in the text control
+wxString wxGridCellTextEditor::GetValue() const
+{
+    return Text()->GetValue();
+}
+
 // ----------------------------------------------------------------------------
 // wxGridCellNumberEditor
 // ----------------------------------------------------------------------------
@@ -766,10 +845,11 @@ void wxGridCellNumberEditor::Create(wxWindow* parent,
                                     wxWindowID id,
                                     wxEvtHandler* evtHandler)
 {
+#if wxUSE_SPINCTRL
     if ( HasRange() )
     {
         // create a spin ctrl
-        m_control = new wxSpinCtrl(parent, -1, wxEmptyString,
+        m_control = new wxSpinCtrl(parent, wxID_ANY, wxEmptyString,
                                    wxDefaultPosition, wxDefaultSize,
                                    wxSP_ARROW_KEYS,
                                    m_min, m_max);
@@ -777,13 +857,14 @@ void wxGridCellNumberEditor::Create(wxWindow* parent,
         wxGridCellEditor::Create(parent, id, evtHandler);
     }
     else
+#endif
     {
         // just a text control
         wxGridCellTextEditor::Create(parent, id, evtHandler);
 
 #if wxUSE_VALIDATORS
         Text()->SetValidator(wxTextValidator(wxFILTER_NUMERIC));
-#endif // wxUSE_VALIDATORS
+#endif
     }
 }
 
@@ -797,20 +878,23 @@ void wxGridCellNumberEditor::BeginEdit(int row, int col, wxGrid* grid)
     }
     else
     {
+        m_valueOld = 0;
         wxString sValue = table->GetValue(row, col);
-        if (! sValue.ToLong(&m_valueOld))
+        if (! sValue.ToLong(&m_valueOld) && ! sValue.empty())
         {
             wxFAIL_MSG( _T("this cell doesn't have numeric value") );
             return;
         }
     }
 
+#if wxUSE_SPINCTRL
     if ( HasRange() )
     {
         Spin()->SetValue((int)m_valueOld);
         Spin()->SetFocus();
     }
     else
+#endif
     {
         DoBeginEdit(GetString());
     }
@@ -820,16 +904,22 @@ bool wxGridCellNumberEditor::EndEdit(int row, int col,
                                      wxGrid* grid)
 {
     bool changed;
-    long value;
+    long value = 0;
+    wxString text;
 
+#if wxUSE_SPINCTRL
     if ( HasRange() )
     {
         value = Spin()->GetValue();
         changed = value != m_valueOld;
+        if (changed)
+            text = wxString::Format(wxT("%ld"), value);
     }
     else
+#endif
     {
-        changed = Text()->GetValue().ToLong(&value) && (value != m_valueOld);
+        text = Text()->GetValue();
+        changed = (text.empty() || text.ToLong(&value)) && (value != m_valueOld);
     }
 
     if ( changed )
@@ -837,7 +927,7 @@ bool wxGridCellNumberEditor::EndEdit(int row, int col,
         if (grid->GetTable()->CanSetValueAs(row, col, wxGRID_VALUE_NUMBER))
             grid->GetTable()->SetValueAsLong(row, col, value);
         else
-            grid->GetTable()->SetValue(row, col, wxString::Format(wxT("%ld"), value));
+            grid->GetTable()->SetValue(row, col, text);
     }
 
     return changed;
@@ -845,11 +935,13 @@ bool wxGridCellNumberEditor::EndEdit(int row, int col,
 
 void wxGridCellNumberEditor::Reset()
 {
+#if wxUSE_SPINCTRL
     if ( HasRange() )
     {
         Spin()->SetValue((int)m_valueOld);
     }
     else
+#endif
     {
         DoReset(GetString());
     }
@@ -860,41 +952,22 @@ bool wxGridCellNumberEditor::IsAcceptedKey(wxKeyEvent& event)
     if ( wxGridCellEditor::IsAcceptedKey(event) )
     {
         int keycode = event.GetKeyCode();
-        switch ( keycode )
+        if ( (keycode < 128) &&
+             (wxIsdigit(keycode) || keycode == '+' || keycode == '-'))
         {
-            case WXK_NUMPAD0:
-            case WXK_NUMPAD1:
-            case WXK_NUMPAD2:
-            case WXK_NUMPAD3:
-            case WXK_NUMPAD4:
-            case WXK_NUMPAD5:
-            case WXK_NUMPAD6:
-            case WXK_NUMPAD7:
-            case WXK_NUMPAD8:
-            case WXK_NUMPAD9:
-            case WXK_ADD:
-            case WXK_NUMPAD_ADD:
-            case WXK_SUBTRACT:
-            case WXK_NUMPAD_SUBTRACT:
-            case WXK_UP:
-            case WXK_DOWN:
-                return TRUE;
-
-            default:
-                if ( (keycode < 128) && isdigit(keycode) )
-                    return TRUE;
+            return true;
         }
     }
 
-    return FALSE;
+    return false;
 }
 
 void wxGridCellNumberEditor::StartingKey(wxKeyEvent& event)
 {
+    int keycode = event.GetKeyCode();
     if ( !HasRange() )
     {
-        int keycode = (int) event.KeyCode();
-        if ( isdigit(keycode) || keycode == '+' || keycode == '-' )
+        if ( wxIsdigit(keycode) || keycode == '+' || keycode == '-')
         {
             wxGridCellTextEditor::StartingKey(event);
 
@@ -902,6 +975,18 @@ void wxGridCellNumberEditor::StartingKey(wxKeyEvent& event)
             return;
         }
     }
+#if wxUSE_SPINCTRL
+    else
+    {
+        if ( wxIsdigit(keycode) )
+        {
+            wxSpinCtrl* spin = (wxSpinCtrl*)m_control;
+            spin->SetValue(keycode - '0');
+            spin->SetSelection(1,1);
+            return;
+        }
+    }
+#endif
 
     event.Skip();
 }
@@ -934,6 +1019,26 @@ void wxGridCellNumberEditor::SetParameters(const wxString& params)
     }
 }
 
+// return the value in the spin control if it is there (the text control otherwise)
+wxString wxGridCellNumberEditor::GetValue() const
+{
+    wxString s;
+
+#if wxUSE_SPINCTRL
+    if ( HasRange() )
+    {
+        long value = Spin()->GetValue();
+        s.Printf(wxT("%ld"), value);
+    }
+    else
+#endif
+    {
+        s = Text()->GetValue();
+    }
+
+    return s;
+}
+
 // ----------------------------------------------------------------------------
 // wxGridCellFloatEditor
 // ----------------------------------------------------------------------------
@@ -952,7 +1057,7 @@ void wxGridCellFloatEditor::Create(wxWindow* parent,
 
 #if wxUSE_VALIDATORS
     Text()->SetValidator(wxTextValidator(wxFILTER_NUMERIC));
-#endif // wxUSE_VALIDATORS
+#endif
 }
 
 void wxGridCellFloatEditor::BeginEdit(int row, int col, wxGrid* grid)
@@ -965,8 +1070,9 @@ void wxGridCellFloatEditor::BeginEdit(int row, int col, wxGrid* grid)
     }
     else
     {
+        m_valueOld = 0.0;
         wxString sValue = table->GetValue(row, col);
-        if (! sValue.ToDouble(&m_valueOld))
+        if (! sValue.ToDouble(&m_valueOld) && ! sValue.empty())
         {
             wxFAIL_MSG( _T("this cell doesn't have float value") );
             return;
@@ -979,20 +1085,21 @@ void wxGridCellFloatEditor::BeginEdit(int row, int col, wxGrid* grid)
 bool wxGridCellFloatEditor::EndEdit(int row, int col,
                                      wxGrid* grid)
 {
-    double value;
-    if ( Text()->GetValue().ToDouble(&value) && (value != m_valueOld) )
+    double value = 0.0;
+    wxString text(Text()->GetValue());
+
+    if ( (text.empty() || text.ToDouble(&value)) &&
+            !wxIsSameDouble(value, m_valueOld) )
     {
         if (grid->GetTable()->CanSetValueAs(row, col, wxGRID_VALUE_FLOAT))
             grid->GetTable()->SetValueAsDouble(row, col, value);
         else
-            grid->GetTable()->SetValue(row, col, wxString::Format(wxT("%f"), value));
+            grid->GetTable()->SetValue(row, col, text);
 
-        return TRUE;
-    }
-    else
-    {
-        return FALSE;
+        return true;
     }
+
+    return false;
 }
 
 void wxGridCellFloatEditor::Reset()
@@ -1002,9 +1109,21 @@ void wxGridCellFloatEditor::Reset()
 
 void wxGridCellFloatEditor::StartingKey(wxKeyEvent& event)
 {
-    int keycode = (int)event.KeyCode();
-    if ( isdigit(keycode) ||
-         keycode == '+' || keycode == '-' || keycode == '.' )
+    int keycode = event.GetKeyCode();
+    char tmpbuf[2];
+    tmpbuf[0] = (char) keycode;
+    tmpbuf[1] = '\0';
+    wxString strbuf(tmpbuf, *wxConvCurrent);
+
+#if wxUSE_INTL
+    bool is_decimal_point = ( strbuf ==
+       wxLocale::GetInfo(wxLOCALE_DECIMAL_POINT, wxLOCALE_CAT_NUMBER) );
+#else
+    bool is_decimal_point = ( strbuf == _T(".") );
+#endif
+
+    if ( wxIsdigit(keycode) || keycode == '+' || keycode == '-'
+         || is_decimal_point )
     {
         wxGridCellTextEditor::StartingKey(event);
 
@@ -1046,19 +1165,24 @@ void wxGridCellFloatEditor::SetParameters(const wxString& params)
 wxString wxGridCellFloatEditor::GetString() const
 {
     wxString fmt;
-    if ( m_width == -1 )
+    if ( m_precision == -1 && m_width != -1)
     {
-        // default width/precision
-        fmt = _T("%g");
+        // default precision
+        fmt.Printf(_T("%%%d.f"), m_width);
     }
-    else if ( m_precision == -1 )
+    else if ( m_precision != -1 && m_width == -1)
     {
-        // default precision
-        fmt.Printf(_T("%%%d.g"), m_width);
+        // default width
+        fmt.Printf(_T("%%.%df"), m_precision);
+    }
+    else if ( m_precision != -1 && m_width != -1 )
+    {
+        fmt.Printf(_T("%%%d.%df"), m_width, m_precision);
     }
     else
     {
-        fmt.Printf(_T("%%%d.%dg"), m_width, m_precision);
+        // default width/precision
+        fmt = _T("%f");
     }
 
     return wxString::Format(fmt, m_valueOld);
@@ -1069,35 +1193,30 @@ bool wxGridCellFloatEditor::IsAcceptedKey(wxKeyEvent& event)
     if ( wxGridCellEditor::IsAcceptedKey(event) )
     {
         int keycode = event.GetKeyCode();
-        switch ( keycode )
-        {
-            case WXK_NUMPAD0:
-            case WXK_NUMPAD1:
-            case WXK_NUMPAD2:
-            case WXK_NUMPAD3:
-            case WXK_NUMPAD4:
-            case WXK_NUMPAD5:
-            case WXK_NUMPAD6:
-            case WXK_NUMPAD7:
-            case WXK_NUMPAD8:
-            case WXK_NUMPAD9:
-            case WXK_ADD:
-            case WXK_NUMPAD_ADD:
-            case WXK_SUBTRACT:
-            case WXK_NUMPAD_SUBTRACT:
-            case WXK_DECIMAL:
-            case WXK_NUMPAD_DECIMAL:
-                return TRUE;
+        printf("%d\n", keycode);
+        // accept digits, 'e' as in '1e+6', also '-', '+', and '.'
+        char tmpbuf[2];
+        tmpbuf[0] = (char) keycode;
+        tmpbuf[1] = '\0';
+        wxString strbuf(tmpbuf, *wxConvCurrent);
+
+#if wxUSE_INTL
+        bool is_decimal_point =
+            ( strbuf == wxLocale::GetInfo(wxLOCALE_DECIMAL_POINT,
+                                          wxLOCALE_CAT_NUMBER) );
+#else
+        bool is_decimal_point = ( strbuf == _T(".") );
+#endif
 
-            default:
-                // additionally accept 'e' as in '1e+6'
-                if ( (keycode < 128) &&
-                     (isdigit(keycode) || tolower(keycode) == 'e') )
-                    return TRUE;
+        if ( (keycode < 128) &&
+             (wxIsdigit(keycode) || tolower(keycode) == 'e' ||
+              is_decimal_point || keycode == '+' || keycode == '-') )
+        {
+            return true;
         }
     }
 
-    return FALSE;
+    return false;
 }
 
 #endif // wxUSE_TEXTCTRL
@@ -1121,7 +1240,7 @@ void wxGridCellBoolEditor::Create(wxWindow* parent,
 
 void wxGridCellBoolEditor::SetSize(const wxRect& r)
 {
-    bool resize = FALSE;
+    bool resize = false;
     wxSize size = m_control->GetSize();
     wxCoord minSize = wxMin(r.width, r.height);
 
@@ -1132,7 +1251,7 @@ void wxGridCellBoolEditor::SetSize(const wxRect& r)
         // reset to default size if it had been made smaller
         size = sizeBest;
 
-        resize = TRUE;
+        resize = true;
     }
 
     if ( size.x >= minSize || size.y >= minSize )
@@ -1140,7 +1259,7 @@ void wxGridCellBoolEditor::SetSize(const wxRect& r)
         // leave 1 pixel margin
         size.x = size.y = minSize - 2;
 
-        resize = TRUE;
+        resize = true;
     }
 
     if ( resize )
@@ -1160,7 +1279,34 @@ void wxGridCellBoolEditor::SetSize(const wxRect& r)
     size.y -= 2;
 #endif
 
-    m_control->Move(r.x + r.width/2 - size.x/2, r.y + r.height/2 - size.y/2);
+    int hAlign = wxALIGN_CENTRE;
+    int vAlign = wxALIGN_CENTRE;
+    if (GetCellAttr())
+        GetCellAttr()->GetAlignment(& hAlign, & vAlign);
+
+    int x = 0, y = 0;
+    if (hAlign == wxALIGN_LEFT)
+    {
+        x = r.x + 2;
+
+#ifdef __WXMSW__
+        x += 2;
+#endif
+
+        y = r.y + r.height / 2 - size.y / 2;
+    }
+    else if (hAlign == wxALIGN_RIGHT)
+    {
+        x = r.x + r.width - size.x - 2;
+        y = r.y + r.height / 2 - size.y / 2;
+    }
+    else if (hAlign == wxALIGN_CENTRE)
+    {
+        x = r.x + r.width / 2 - size.x / 2;
+        y = r.y + r.height / 2 - size.y / 2;
+    }
+
+    m_control->Move(x, y);
 }
 
 void wxGridCellBoolEditor::Show(bool show, wxGridCellAttr *attr)
@@ -1177,15 +1323,18 @@ void wxGridCellBoolEditor::Show(bool show, wxGridCellAttr *attr)
 void wxGridCellBoolEditor::BeginEdit(int row, int col, wxGrid* grid)
 {
     wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+                 wxT("The wxGridCellEditor must be created first!"));
 
     if (grid->GetTable()->CanGetValueAs(row, col, wxGRID_VALUE_BOOL))
+    {
         m_startValue = grid->GetTable()->GetValueAsBool(row, col);
+    }
     else
     {
         wxString cellval( grid->GetTable()->GetValue(row, col) );
-        m_startValue = !( !cellval || (cellval == "0") );
+        m_startValue = !( !cellval || (cellval == wxT("0")) );
     }
+
     CBox()->SetValue(m_startValue);
     CBox()->SetFocus();
 }
@@ -1194,12 +1343,12 @@ bool wxGridCellBoolEditor::EndEdit(int row, int col,
                                    wxGrid* grid)
 {
     wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+                 wxT("The wxGridCellEditor must be created first!"));
 
-    bool changed = FALSE;
+    bool changed = false;
     bool value = CBox()->GetValue();
     if ( value != m_startValue )
-        changed = TRUE;
+        changed = true;
 
     if ( changed )
     {
@@ -1215,7 +1364,7 @@ bool wxGridCellBoolEditor::EndEdit(int row, int col,
 void wxGridCellBoolEditor::Reset()
 {
     wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+                 wxT("The wxGridCellEditor must be created first!"));
 
     CBox()->SetValue(m_startValue);
 }
@@ -1232,20 +1381,41 @@ bool wxGridCellBoolEditor::IsAcceptedKey(wxKeyEvent& event)
         int keycode = event.GetKeyCode();
         switch ( keycode )
         {
-            case WXK_MULTIPLY:
-            case WXK_NUMPAD_MULTIPLY:
-            case WXK_ADD:
-            case WXK_NUMPAD_ADD:
-            case WXK_SUBTRACT:
-            case WXK_NUMPAD_SUBTRACT:
             case WXK_SPACE:
             case '+':
             case '-':
-                return TRUE;
+                return true;
         }
     }
 
-    return FALSE;
+    return false;
+}
+
+void wxGridCellBoolEditor::StartingKey(wxKeyEvent& event)
+{
+    int keycode = event.GetKeyCode();
+    switch ( keycode )
+    {
+        case WXK_SPACE:
+            CBox()->SetValue(!CBox()->GetValue());
+            break;
+
+        case '+':
+            CBox()->SetValue(true);
+            break;
+
+        case '-':
+            CBox()->SetValue(false);
+            break;
+    }
+}
+
+
+// return the value as "1" for true and the empty string for false
+wxString wxGridCellBoolEditor::GetValue() const
+{
+  bool bSet = CBox()->GetValue();
+  return bSet ? _T("1") : wxEmptyString;
 }
 
 #endif // wxUSE_CHECKBOX
@@ -1256,6 +1426,11 @@ bool wxGridCellBoolEditor::IsAcceptedKey(wxKeyEvent& event)
 // wxGridCellChoiceEditor
 // ----------------------------------------------------------------------------
 
+wxGridCellChoiceEditor::wxGridCellChoiceEditor(const wxArrayString& choices,
+                                               bool allowOthers)
+    : m_choices(choices),
+      m_allowOthers(allowOthers) { }
+
 wxGridCellChoiceEditor::wxGridCellChoiceEditor(size_t count,
                                                const wxString choices[],
                                                bool allowOthers)
@@ -1284,20 +1459,11 @@ void wxGridCellChoiceEditor::Create(wxWindow* parent,
                                     wxWindowID id,
                                     wxEvtHandler* evtHandler)
 {
-    size_t count = m_choices.GetCount();
-    wxString *choices = new wxString[count];
-    for ( size_t n = 0; n < count; n++ )
-    {
-        choices[n] = m_choices[n];
-    }
-
     m_control = new wxComboBox(parent, id, wxEmptyString,
                                wxDefaultPosition, wxDefaultSize,
-                               count, choices,
+                               m_choices,
                                m_allowOthers ? 0 : wxCB_READONLY);
 
-    delete [] choices;
-
     wxGridCellEditor::Create(parent, id, evtHandler);
 }
 
@@ -1308,45 +1474,62 @@ void wxGridCellChoiceEditor::PaintBackground(const wxRect& rectCell,
     // flicker
 
     // TODO: It doesn't actually fill the client area since the height of a
-    // combo always defaults to the standard...  Until someone has time to
-    // figure out the right rectangle to paint, just do it the normal way...
+    // combo always defaults to the standard.  Until someone has time to
+    // figure out the right rectangle to paint, just do it the normal way.
     wxGridCellEditor::PaintBackground(rectCell, attr);
 }
 
 void wxGridCellChoiceEditor::BeginEdit(int row, int col, wxGrid* grid)
 {
     wxASSERT_MSG(m_control,
-                 wxT("The wxGridCellEditor must be Created first!"));
+                 wxT("The wxGridCellEditor must be created first!"));
+
+    wxGridCellEditorEvtHandler* evtHandler = NULL;
+    if (m_control)
+        evtHandler = wxDynamicCast(m_control->GetEventHandler(), wxGridCellEditorEvtHandler);
+
+    // Don't immediately end if we get a kill focus event within BeginEdit
+    if (evtHandler)
+        evtHandler->SetInSetFocus(true);
 
     m_startValue = grid->GetTable()->GetValue(row, col);
 
-    Combo()->SetValue(m_startValue);
-    size_t count = m_choices.GetCount();
-    for (size_t i=0; i<count; i++)
+    if (m_allowOthers)
     {
-        if (m_startValue == m_choices[i])
-        {
-            Combo()->SetSelection(i);
-            break;
-        }
+        Combo()->SetValue(m_startValue);
+    }
+    else
+    {
+        // find the right position, or default to the first if not found
+        int pos = Combo()->FindString(m_startValue);
+        if (pos == wxNOT_FOUND)
+            pos = 0;
+        Combo()->SetSelection(pos);
     }
+
     Combo()->SetInsertionPointEnd();
     Combo()->SetFocus();
+
+    if (evtHandler)
+    {
+        // When dropping down the menu, a kill focus event
+        // happens after this point, so we can't reset the flag yet.
+#if !defined(__WXGTK20__)
+        evtHandler->SetInSetFocus(false);
+#endif
+    }
 }
 
 bool wxGridCellChoiceEditor::EndEdit(int row, int col,
                                      wxGrid* grid)
 {
     wxString value = Combo()->GetValue();
-    bool changed = value != m_startValue;
-
-    if ( changed )
-        grid->GetTable()->SetValue(row, col, value);
+    if ( value == m_startValue )
+        return false;
 
-    m_startValue = wxEmptyString;
-    Combo()->SetValue(m_startValue);
+    grid->GetTable()->SetValue(row, col, value);
 
-    return changed;
+    return true;
 }
 
 void wxGridCellChoiceEditor::Reset()
@@ -1372,15 +1555,33 @@ void wxGridCellChoiceEditor::SetParameters(const wxString& params)
     }
 }
 
+// return the value in the text control
+wxString wxGridCellChoiceEditor::GetValue() const
+{
+  return Combo()->GetValue();
+}
+
 #endif // wxUSE_COMBOBOX
 
 // ----------------------------------------------------------------------------
 // wxGridCellEditorEvtHandler
 // ----------------------------------------------------------------------------
 
+void wxGridCellEditorEvtHandler::OnKillFocus(wxFocusEvent& event)
+{
+    // Don't disable the cell if we're just starting to edit it
+    if (m_inSetFocus)
+        return;
+
+    // accept changes
+    m_grid->DisableCellEditControl();
+
+    event.Skip();
+}
+
 void wxGridCellEditorEvtHandler::OnKeyDown(wxKeyEvent& event)
 {
-    switch ( event.KeyCode() )
+    switch ( event.GetKeyCode() )
     {
         case WXK_ESCAPE:
             m_editor->Reset();
@@ -1397,15 +1598,24 @@ void wxGridCellEditorEvtHandler::OnKeyDown(wxKeyEvent& event)
                 m_editor->HandleReturn(event);
             break;
 
-
         default:
             event.Skip();
+            break;
     }
 }
 
 void wxGridCellEditorEvtHandler::OnChar(wxKeyEvent& event)
 {
-    switch ( event.KeyCode() )
+    int row = m_grid->GetGridCursorRow();
+    int col = m_grid->GetGridCursorCol();
+    wxRect rect = m_grid->CellToRect( row, col );
+    int cw, ch;
+    m_grid->GetGridWindow()->GetClientSize( &cw, &ch );
+
+    // if cell width is smaller than grid client area, cell is wholly visible
+    bool wholeCellVisible = (rect.GetWidth() < cw);
+
+    switch ( event.GetKeyCode() )
     {
         case WXK_ESCAPE:
         case WXK_TAB:
@@ -1413,28 +1623,112 @@ void wxGridCellEditorEvtHandler::OnChar(wxKeyEvent& event)
         case WXK_NUMPAD_ENTER:
             break;
 
-        default:
-            event.Skip();
-    }
-}
-
-// ----------------------------------------------------------------------------
-// wxGridCellWorker is an (almost) empty common base class for
-// wxGridCellRenderer and wxGridCellEditor managing ref counting
-// ----------------------------------------------------------------------------
+        case WXK_HOME:
+        {
+            if ( wholeCellVisible )
+            {
+                // no special processing needed...
+                event.Skip();
+                break;
+            }
 
-void wxGridCellWorker::SetParameters(const wxString& WXUNUSED(params))
-{
-    // nothing to do
-}
+            // do special processing for partly visible cell...
 
-wxGridCellWorker::~wxGridCellWorker()
-{
-}
+            // get the widths of all cells previous to this one
+            int colXPos = 0;
+            for ( int i = 0; i < col; i++ )
+            {
+                colXPos += m_grid->GetColSize(i);
+            }
 
-// ============================================================================
-// renderer classes
-// ============================================================================
+            int xUnit = 1, yUnit = 1;
+            m_grid->GetScrollPixelsPerUnit(&xUnit, &yUnit);
+            if (col != 0)
+            {
+                m_grid->Scroll(colXPos / xUnit - 1, m_grid->GetScrollPos(wxVERTICAL));
+            }
+            else
+            {
+                m_grid->Scroll(colXPos / xUnit, m_grid->GetScrollPos(wxVERTICAL));
+            }
+            event.Skip();
+            break;
+        }
+
+        case WXK_END:
+        {
+            if ( wholeCellVisible )
+            {
+                // no special processing needed...
+                event.Skip();
+                break;
+            }
+
+            // do special processing for partly visible cell...
+
+            int textWidth = 0;
+            wxString value = m_grid->GetCellValue(row, col);
+            if ( wxEmptyString != value )
+            {
+                // get width of cell CONTENTS (text)
+                int y;
+                wxFont font = m_grid->GetCellFont(row, col);
+                m_grid->GetTextExtent(value, &textWidth, &y, NULL, NULL, &font);
+
+                // try to RIGHT align the text by scrolling
+                int client_right = m_grid->GetGridWindow()->GetClientSize().GetWidth();
+
+                // (m_grid->GetScrollLineX()*2) is a factor for not scrolling to far,
+                // otherwise the last part of the cell content might be hidden below the scroll bar
+                // FIXME: maybe there is a more suitable correction?
+                textWidth -= (client_right - (m_grid->GetScrollLineX() * 2));
+                if ( textWidth < 0 )
+                {
+                    textWidth = 0;
+                }
+            }
+
+            // get the widths of all cells previous to this one
+            int colXPos = 0;
+            for ( int i = 0; i < col; i++ )
+            {
+                colXPos += m_grid->GetColSize(i);
+            }
+
+            // and add the (modified) text width of the cell contents
+            // as we'd like to see the last part of the cell contents
+            colXPos += textWidth;
+
+            int xUnit = 1, yUnit = 1;
+            m_grid->GetScrollPixelsPerUnit(&xUnit, &yUnit);
+            m_grid->Scroll(colXPos / xUnit - 1, m_grid->GetScrollPos(wxVERTICAL));
+            event.Skip();
+            break;
+        }
+
+        default:
+            event.Skip();
+            break;
+    }
+}
+
+// ----------------------------------------------------------------------------
+// wxGridCellWorker is an (almost) empty common base class for
+// wxGridCellRenderer and wxGridCellEditor managing ref counting
+// ----------------------------------------------------------------------------
+
+void wxGridCellWorker::SetParameters(const wxString& WXUNUSED(params))
+{
+    // nothing to do
+}
+
+wxGridCellWorker::~wxGridCellWorker()
+{
+}
+
+// ============================================================================
+// renderer classes
+// ============================================================================
 
 // ----------------------------------------------------------------------------
 // wxGridCellRenderer
@@ -1449,13 +1743,21 @@ void wxGridCellRenderer::Draw(wxGrid& grid,
 {
     dc.SetBackgroundMode( wxSOLID );
 
-    if ( isSelected )
+    // grey out fields if the grid is disabled
+    if ( grid.IsEnabled() )
     {
-        dc.SetBrush( wxBrush(grid.GetSelectionBackground(), wxSOLID) );
+        if ( isSelected )
+        {
+            dc.SetBrush( wxBrush(grid.GetSelectionBackground(), wxSOLID) );
+        }
+        else
+        {
+            dc.SetBrush( wxBrush(attr.GetBackgroundColour(), wxSOLID) );
+        }
     }
     else
     {
-        dc.SetBrush( wxBrush(attr.GetBackgroundColour(), wxSOLID) );
+        dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE), wxSOLID));
     }
 
     dc.SetPen( *wxTRANSPARENT_PEN );
@@ -1466,8 +1768,8 @@ void wxGridCellRenderer::Draw(wxGrid& grid,
 // wxGridCellStringRenderer
 // ----------------------------------------------------------------------------
 
-void wxGridCellStringRenderer::SetTextColoursAndFont(wxGrid& grid,
-                                                     wxGridCellAttr& attr,
+void wxGridCellStringRenderer::SetTextColoursAndFont(const wxGrid& grid,
+                                                     const wxGridCellAttr& attr,
                                                      wxDC& dc,
                                                      bool isSelected)
 {
@@ -1475,21 +1777,30 @@ void wxGridCellStringRenderer::SetTextColoursAndFont(wxGrid& grid,
 
     // TODO some special colours for attr.IsReadOnly() case?
 
-    if ( isSelected )
+    // different coloured text when the grid is disabled
+    if ( grid.IsEnabled() )
     {
-        dc.SetTextBackground( grid.GetSelectionBackground() );
-        dc.SetTextForeground( grid.GetSelectionForeground() );
+        if ( isSelected )
+        {
+            dc.SetTextBackground( grid.GetSelectionBackground() );
+            dc.SetTextForeground( grid.GetSelectionForeground() );
+        }
+        else
+        {
+            dc.SetTextBackground( attr.GetBackgroundColour() );
+            dc.SetTextForeground( attr.GetTextColour() );
+        }
     }
     else
     {
-        dc.SetTextBackground( attr.GetBackgroundColour() );
-        dc.SetTextForeground( attr.GetTextColour() );
+        dc.SetTextBackground(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
+        dc.SetTextForeground(wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT));
     }
 
     dc.SetFont( attr.GetFont() );
 }
 
-wxSize wxGridCellStringRenderer::DoGetBestSize(wxGridCellAttr& attr,
+wxSize wxGridCellStringRenderer::DoGetBestSize(const wxGridCellAttr& attr,
                                                wxDC& dc,
                                                const wxString& text)
 {
@@ -1522,16 +1833,93 @@ void wxGridCellStringRenderer::Draw(wxGrid& grid,
                                     int row, int col,
                                     bool isSelected)
 {
-    wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected);
+    wxRect rect = rectCell;
+    rect.Inflate(-1);
 
-    // now we only have to draw the text
-    SetTextColoursAndFont(grid, attr, dc, isSelected);
+    // erase only this cells background, overflow cells should have been erased
+    wxGridCellRenderer::Draw(grid, attr, dc, rectCell, row, col, isSelected);
 
     int hAlign, vAlign;
     attr.GetAlignment(&hAlign, &vAlign);
 
-    wxRect rect = rectCell;
-    rect.Inflate(-1);
+    int overflowCols = 0;
+
+    if (attr.GetOverflow())
+    {
+        int cols = grid.GetNumberCols();
+        int best_width = GetBestSize(grid,attr,dc,row,col).GetWidth();
+        int cell_rows, cell_cols;
+        attr.GetSize( &cell_rows, &cell_cols ); // shouldn't get here if <= 0
+        if ((best_width > rectCell.width) && (col < cols) && grid.GetTable())
+        {
+            int i, c_cols, c_rows;
+            for (i = col+cell_cols; i < cols; i++)
+            {
+                bool is_empty = true;
+                for (int j=row; j < row + cell_rows; j++)
+                {
+                    // check w/ anchor cell for multicell block
+                    grid.GetCellSize(j, i, &c_rows, &c_cols);
+                    if (c_rows > 0)
+                        c_rows = 0;
+                    if (!grid.GetTable()->IsEmptyCell(j + c_rows, i))
+                    {
+                        is_empty = false;
+                        break;
+                    }
+                }
+
+                if (is_empty)
+                {
+                    rect.width += grid.GetColSize(i);
+                }
+                else
+                {
+                    i--;
+                    break;
+                }
+
+                if (rect.width >= best_width)
+                    break;
+            }
+
+            overflowCols = i - col - cell_cols + 1;
+            if (overflowCols >= cols)
+                overflowCols = cols - 1;
+        }
+
+        if (overflowCols > 0) // redraw overflow cells w/ proper hilight
+        {
+            hAlign = wxALIGN_LEFT; // if oveflowed then it's left aligned
+            wxRect clip = rect;
+            clip.x += rectCell.width;
+            // draw each overflow cell individually
+            int col_end = col + cell_cols + overflowCols;
+            if (col_end >= grid.GetNumberCols())
+                col_end = grid.GetNumberCols() - 1;
+            for (int i = col + cell_cols; i <= col_end; i++)
+            {
+                clip.width = grid.GetColSize(i) - 1;
+                dc.DestroyClippingRegion();
+                dc.SetClippingRegion(clip);
+
+                SetTextColoursAndFont(grid, attr, dc,
+                        grid.IsInSelection(row,i));
+
+                grid.DrawTextRectangle(dc, grid.GetCellValue(row, col),
+                        rect, hAlign, vAlign);
+                clip.x += grid.GetColSize(i) - 1;
+            }
+
+            rect = rectCell;
+            rect.Inflate(-1);
+            rect.width++;
+            dc.DestroyClippingRegion();
+        }
+    }
+
+    // now we only have to draw the text
+    SetTextColoursAndFont(grid, attr, dc, isSelected);
 
     grid.DrawTextRectangle(dc, grid.GetCellValue(row, col),
                            rect, hAlign, vAlign);
@@ -1541,7 +1929,7 @@ void wxGridCellStringRenderer::Draw(wxGrid& grid,
 // wxGridCellNumberRenderer
 // ----------------------------------------------------------------------------
 
-wxString wxGridCellNumberRenderer::GetString(wxGrid& grid, int row, int col)
+wxString wxGridCellNumberRenderer::GetString(const wxGrid& grid, int row, int col)
 {
     wxGridTableBase *table = grid.GetTable();
     wxString text;
@@ -1607,7 +1995,7 @@ wxGridCellRenderer *wxGridCellFloatRenderer::Clone() const
     return renderer;
 }
 
-wxString wxGridCellFloatRenderer::GetString(wxGrid& grid, int row, int col)
+wxString wxGridCellFloatRenderer::GetString(const wxGrid& grid, int row, int col)
 {
     wxGridTableBase *table = grid.GetTable();
 
@@ -1617,7 +2005,7 @@ wxString wxGridCellFloatRenderer::GetString(wxGrid& grid, int row, int col)
     if ( table->CanGetValueAs(row, col, wxGRID_VALUE_FLOAT) )
     {
         val = table->GetValueAsDouble(row, col);
-        hasDouble = TRUE;
+        hasDouble = true;
     }
     else
     {
@@ -1633,9 +2021,9 @@ wxString wxGridCellFloatRenderer::GetString(wxGrid& grid, int row, int col)
             {
                 if ( m_precision == -1 )
                 {
-                // default width/precision
-                m_format = _T("%f");
-            }
+                    // default width/precision
+                    m_format = _T("%f");
+                }
                 else
                 {
                     m_format.Printf(_T("%%.%df"), m_precision);
@@ -1701,7 +2089,7 @@ void wxGridCellFloatRenderer::SetParameters(const wxString& params)
     else
     {
         wxString tmp = params.BeforeFirst(_T(','));
-        if ( !!tmp )
+        if ( !tmp.empty() )
         {
             long width;
             if ( tmp.ToLong(&width) )
@@ -1712,26 +2100,24 @@ void wxGridCellFloatRenderer::SetParameters(const wxString& params)
             {
                 wxLogDebug(_T("Invalid wxGridCellFloatRenderer width parameter string '%s ignored"), params.c_str());
             }
-
         }
-                tmp = params.AfterFirst(_T(','));
-                if ( !!tmp )
-                {
-                    long precision;
+
+        tmp = params.AfterFirst(_T(','));
+        if ( !tmp.empty() )
+        {
+            long precision;
             if ( tmp.ToLong(&precision) )
-                    {
+            {
                 SetPrecision((int)precision);
-                    }
-                    else
-                    {
+            }
+            else
+            {
                 wxLogDebug(_T("Invalid wxGridCellFloatRenderer precision parameter string '%s ignored"), params.c_str());
-        }
-
+            }
         }
     }
 }
 
-
 // ----------------------------------------------------------------------------
 // wxGridCellBoolRenderer
 // ----------------------------------------------------------------------------
@@ -1753,10 +2139,9 @@ wxSize wxGridCellBoolRenderer::GetBestSize(wxGrid& grid,
     if ( !ms_sizeCheckMark.x )
     {
         // get checkbox size
-        wxCoord checkSize = 0;
-        wxCheckBox *checkbox = new wxCheckBox(&grid, -1, wxEmptyString);
+        wxCheckBox *checkbox = new wxCheckBox(&grid, wxID_ANY, wxEmptyString);
         wxSize size = checkbox->GetBestSize();
-        checkSize = size.y + 2*wxGRID_CHECKMARK_MARGIN;
+        wxCoord checkSize = size.y + 2 * wxGRID_CHECKMARK_MARGIN;
 
         // FIXME wxGTK::wxCheckBox::GetBestSize() gives "wrong" result
 #if defined(__WXGTK__) || defined(__WXMOTIF__)
@@ -1792,32 +2177,55 @@ void wxGridCellBoolRenderer::Draw(wxGrid& grid,
     }
 
     // draw a border around checkmark
+    int vAlign, hAlign;
+    attr.GetAlignment(&hAlign, &vAlign);
+
     wxRect rectBorder;
-    rectBorder.x = rect.x + rect.width/2 - size.x/2;
-    rectBorder.y = rect.y + rect.height/2 - size.y/2;
-    rectBorder.width = size.x;
-    rectBorder.height = size.y;
+    if (hAlign == wxALIGN_CENTRE)
+    {
+        rectBorder.x = rect.x + rect.width / 2 - size.x / 2;
+        rectBorder.y = rect.y + rect.height / 2 - size.y / 2;
+        rectBorder.width = size.x;
+        rectBorder.height = size.y;
+    }
+    else if (hAlign == wxALIGN_LEFT)
+    {
+        rectBorder.x = rect.x + 2;
+        rectBorder.y = rect.y + rect.height / 2 - size.y / 2;
+        rectBorder.width = size.x;
+        rectBorder.height = size.y;
+    }
+    else if (hAlign == wxALIGN_RIGHT)
+    {
+        rectBorder.x = rect.x + rect.width - size.x - 2;
+        rectBorder.y = rect.y + rect.height / 2 - size.y / 2;
+        rectBorder.width = size.x;
+        rectBorder.height = size.y;
+    }
 
     bool value;
     if ( grid.GetTable()->CanGetValueAs(row, col, wxGRID_VALUE_BOOL) )
+    {
         value = grid.GetTable()->GetValueAsBool(row, col);
+    }
     else
     {
         wxString cellval( grid.GetTable()->GetValue(row, col) );
-        value = !( !cellval || (cellval == "0") );
+        value = !( !cellval || (cellval == wxT("0")) );
     }
 
     if ( value )
     {
         wxRect rectMark = rectBorder;
+
 #ifdef __WXMSW__
         // MSW DrawCheckMark() is weird (and should probably be changed...)
-        rectMark.Inflate(-wxGRID_CHECKMARK_MARGIN/2);
+        rectMark.Inflate(-wxGRID_CHECKMARK_MARGIN / 2);
         rectMark.x++;
         rectMark.y++;
-#else // !MSW
+#else
         rectMark.Inflate(-wxGRID_CHECKMARK_MARGIN);
-#endif // MSW/!MSW
+#endif
 
         dc.SetTextForeground(attr.GetTextColour());
         dc.DrawCheckMark(rectMark);
@@ -1843,6 +2251,9 @@ void wxGridCellAttr::Init(wxGridCellAttr *attrDefault)
 
     m_attrkind = wxGridCellAttr::Cell;
 
+    m_sizeRows = m_sizeCols = 1;
+    m_overflow = UnsetOverflow;
+
     SetDefAttr(attrDefault);
 }
 
@@ -1859,6 +2270,8 @@ wxGridCellAttr *wxGridCellAttr::Clone() const
     if ( HasAlignment() )
         attr->SetAlignment(m_hAlign, m_vAlign);
 
+    attr->SetSize( m_sizeRows, m_sizeCols );
+
     if ( m_renderer )
     {
         attr->SetRenderer(m_renderer);
@@ -1886,11 +2299,14 @@ void wxGridCellAttr::MergeWith(wxGridCellAttr *mergefrom)
         SetBackgroundColour(mergefrom->GetBackgroundColour());
     if ( !HasFont() && mergefrom->HasFont() )
         SetFont(mergefrom->GetFont());
-    if ( !!HasAlignment() && mergefrom->HasAlignment() ){
+    if ( !HasAlignment() && mergefrom->HasAlignment() )
+    {
         int hAlign, vAlign;
         mergefrom->GetAlignment( &hAlign, &vAlign);
         SetAlignment(hAlign, vAlign);
     }
+    if ( !HasSize() && mergefrom->HasSize() )
+        mergefrom->GetSize( &m_sizeRows, &m_sizeCols );
 
     // Directly access member functions as GetRender/Editor don't just return
     // m_renderer/m_editor
@@ -1906,12 +2322,36 @@ void wxGridCellAttr::MergeWith(wxGridCellAttr *mergefrom)
         m_editor =  mergefrom->m_editor;
         m_editor->IncRef();
     }
-    if ( !HasReadWriteMode()  && mergefrom->HasReadWriteMode() )
+    if ( !HasReadWriteMode() && mergefrom->HasReadWriteMode() )
         SetReadOnly(mergefrom->IsReadOnly());
 
+    if (!HasOverflowMode() && mergefrom->HasOverflowMode() )
+        SetOverflow(mergefrom->GetOverflow());
+
     SetDefAttr(mergefrom->m_defGridAttr);
 }
 
+void wxGridCellAttr::SetSize(int num_rows, int num_cols)
+{
+    // The size of a cell is normally 1,1
+
+    // If this cell is larger (2,2) then this is the top left cell
+    // the other cells that will be covered (lower right cells) must be
+    // set to negative or zero values such that
+    // row + num_rows of the covered cell points to the larger cell (this cell)
+    // same goes for the col + num_cols.
+
+    // Size of 0,0 is NOT valid, neither is <=0 and any positive value
+
+    wxASSERT_MSG( (!((num_rows > 0) && (num_cols <= 0)) ||
+                  !((num_rows <= 0) && (num_cols > 0)) ||
+                  !((num_rows == 0) && (num_cols == 0))),
+                  wxT("wxGridCellAttr::SetSize only takes two postive values or negative/zero values"));
+
+    m_sizeRows = num_rows;
+    m_sizeCols = num_cols;
+}
+
 const wxColour& wxGridCellAttr::GetTextColour() const
 {
     if (HasTextColour())
@@ -1929,13 +2369,16 @@ const wxColour& wxGridCellAttr::GetTextColour() const
     }
 }
 
-
 const wxColour& wxGridCellAttr::GetBackgroundColour() const
 {
     if (HasBackgroundColour())
+    {
         return m_colBack;
+    }
     else if (m_defGridAttr && m_defGridAttr != this)
+    {
         return m_defGridAttr->GetBackgroundColour();
+    }
     else
     {
         wxFAIL_MSG(wxT("Missing default cell attribute"));
@@ -1943,13 +2386,16 @@ const wxColour& wxGridCellAttr::GetBackgroundColour() const
     }
 }
 
-
 const wxFont& wxGridCellAttr::GetFont() const
 {
     if (HasFont())
+    {
         return m_font;
+    }
     else if (m_defGridAttr && m_defGridAttr != this)
+    {
         return m_defGridAttr->GetFont();
+    }
     else
     {
         wxFAIL_MSG(wxT("Missing default cell attribute"));
@@ -1957,33 +2403,43 @@ const wxFont& wxGridCellAttr::GetFont() const
     }
 }
 
-
 void wxGridCellAttr::GetAlignment(int *hAlign, int *vAlign) const
 {
     if (HasAlignment())
     {
-        if ( hAlign ) *hAlign = m_hAlign;
-        if ( vAlign ) *vAlign = m_vAlign;
+        if ( hAlign )
+            *hAlign = m_hAlign;
+        if ( vAlign )
+            *vAlign = m_vAlign;
     }
     else if (m_defGridAttr && m_defGridAttr != this)
+    {
         m_defGridAttr->GetAlignment(hAlign, vAlign);
+    }
     else
     {
         wxFAIL_MSG(wxT("Missing default cell attribute"));
     }
 }
 
+void wxGridCellAttr::GetSize( int *num_rows, int *num_cols ) const
+{
+    if ( num_rows )
+        *num_rows = m_sizeRows;
+    if ( num_cols )
+        *num_cols = m_sizeCols;
+}
 
 // GetRenderer and GetEditor use a slightly different decision path about
 // which attribute to use.  If a non-default attr object has one then it is
 // used, otherwise the default editor or renderer is fetched from the grid and
 // used.  It should be the default for the data type of the cell.  If it is
 // NULL (because the table has a type that the grid does not have in its
-// registry,) then the grid's default editor or renderer is used.
+// registry), then the grid's default editor or renderer is used.
 
 wxGridCellRenderer* wxGridCellAttr::GetRenderer(wxGrid* grid, int row, int col) const
 {
-    wxGridCellRenderer *renderer;
+    wxGridCellRenderer *renderer = NULL;
 
     if ( m_renderer && this != m_defGridAttr )
     {
@@ -1991,7 +2447,7 @@ wxGridCellRenderer* wxGridCellAttr::GetRenderer(wxGrid* grid, int row, int col)
         renderer = m_renderer;
         renderer->IncRef();
     }
-    else // no non default cell renderer
+    else // no non-default cell renderer
     {
         // get default renderer for the data type
         if ( grid )
@@ -1999,14 +2455,10 @@ wxGridCellRenderer* wxGridCellAttr::GetRenderer(wxGrid* grid, int row, int col)
             // GetDefaultRendererForCell() will do IncRef() for us
             renderer = grid->GetDefaultRendererForCell(row, col);
         }
-        else
-        {
-            renderer = NULL;
-        }
 
-        if ( !renderer )
+        if ( renderer == NULL )
         {
-            if (m_defGridAttr &&  this != m_defGridAttr )
+            if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
             {
                 // if we still don't have one then use the grid default
                 // (no need for IncRef() here neither)
@@ -2031,7 +2483,7 @@ wxGridCellRenderer* wxGridCellAttr::GetRenderer(wxGrid* grid, int row, int col)
 // same as above, except for s/renderer/editor/g
 wxGridCellEditor* wxGridCellAttr::GetEditor(wxGrid* grid, int row, int col) const
 {
-    wxGridCellEditor *editor;
+    wxGridCellEditor *editor = NULL;
 
     if ( m_editor && this != m_defGridAttr )
     {
@@ -2047,14 +2499,10 @@ wxGridCellEditor* wxGridCellAttr::GetEditor(wxGrid* grid, int row, int col) cons
             // GetDefaultEditorForCell() will do IncRef() for us
             editor = grid->GetDefaultEditorForCell(row, col);
         }
-        else
-        {
-            editor = NULL;
-        }
 
-        if ( !editor )
+        if ( editor == NULL )
         {
-            if ( m_defGridAttr && this != m_defGridAttr )
+            if ( (m_defGridAttr != NULL) && (m_defGridAttr != this) )
             {
                 // if we still don't have one then use the grid default
                 // (no need for IncRef() here neither)
@@ -2145,8 +2593,11 @@ void wxGridCellAttrData::UpdateAttrRows( size_t pos, int numRows )
                 else
                 {
                     // ...or remove the attribute
-                    m_attrs.RemoveAt((size_t)n);
-                    n--; count--;
+                    // No need to DecRef the attribute itself since this is
+                    // done be wxGridCellWithAttr's destructor!
+                    m_attrs.RemoveAt(n);
+                    n--;
+                    count--;
                 }
             }
         }
@@ -2178,8 +2629,11 @@ void wxGridCellAttrData::UpdateAttrCols( size_t pos, int numCols )
                 else
                 {
                     // ...or remove the attribute
-                    m_attrs.RemoveAt((size_t)n);
-                    n--; count--;
+                    // No need to DecRef the attribute itself since this is
+                    // done be wxGridCellWithAttr's destructor!
+                    m_attrs.RemoveAt(n);
+                    n--;
+                    count--;
                 }
             }
         }
@@ -2276,9 +2730,11 @@ void wxGridRowOrColAttrData::UpdateAttrRowsOrCols( size_t pos, int numRowsOrCols
                     rowOrCol += numRowsOrCols;
                 else
                 {
-                    m_rowsOrCols.RemoveAt((size_t)n);
-                    m_attrs.RemoveAt((size_t)n);
-                    n--; count--;
+                    m_rowsOrCols.RemoveAt(n);
+                    m_attrs[n]->DecRef();
+                    m_attrs.RemoveAt(n);
+                    n--;
+                    count--;
                 }
             }
         }
@@ -2310,71 +2766,88 @@ wxGridCellAttr *wxGridCellAttrProvider::GetAttr(int row, int col,
     wxGridCellAttr *attr = (wxGridCellAttr *)NULL;
     if ( m_data )
     {
-        switch(kind)
+        switch (kind)
         {
             case (wxGridCellAttr::Any):
-                //Get cached merge attributes.
-                // Currenlty not used as no cache implemented as not mutiable
+                // Get cached merge attributes.
+                // Currently not used as no cache implemented as not mutable
                 // attr = m_data->m_mergeAttr.GetAttr(row, col);
-                if(!attr)
+                if (!attr)
                 {
-                    //Basicaly implement old version.
-                    //Also check merge cache, so we don't have to re-merge every time..
-                    wxGridCellAttr *attrcell = (wxGridCellAttr *)NULL,
-                                   *attrrow = (wxGridCellAttr *)NULL,
-                                   *attrcol = (wxGridCellAttr *)NULL;
-
-                    attrcell = m_data->m_cellAttrs.GetAttr(row, col);
-                    attrcol = m_data->m_colAttrs.GetAttr(col);
-                    attrrow = m_data->m_rowAttrs.GetAttr(row);
-
-                    if((attrcell != attrrow) && (attrrow !=attrcol) && (attrcell != attrcol)){
-                        // Two or move are non NULL
+                    // Basically implement old version.
+                    // Also check merge cache, so we don't have to re-merge every time..
+                    wxGridCellAttr *attrcell = m_data->m_cellAttrs.GetAttr(row, col);
+                    wxGridCellAttr *attrrow = m_data->m_rowAttrs.GetAttr(row);
+                    wxGridCellAttr *attrcol = m_data->m_colAttrs.GetAttr(col);
+
+                    if ((attrcell != attrrow) && (attrrow != attrcol) && (attrcell != attrcol))
+                    {
+                        // Two or more are non NULL
                         attr = new wxGridCellAttr;
                         attr->SetKind(wxGridCellAttr::Merged);
 
-                        //Order important..
-                        if(attrcell){
+                        // Order is important..
+                        if (attrcell)
+                        {
                             attr->MergeWith(attrcell);
                             attrcell->DecRef();
                         }
-                        if(attrcol){
+                        if (attrcol)
+                        {
                             attr->MergeWith(attrcol);
                             attrcol->DecRef();
                         }
-                        if(attrrow){
+                        if (attrrow)
+                        {
                             attr->MergeWith(attrrow);
                             attrrow->DecRef();
                         }
-                        //store merge attr if cache implemented
+
+                        // store merge attr if cache implemented
                         //attr->IncRef();
                         //m_data->m_mergeAttr.SetAttr(attr, row, col);
                     }
                     else
-        {
+                    {
                         // one or none is non null return it or null.
-                        if(attrrow) attr = attrrow;
-                        if(attrcol) attr = attrcol;
-                        if(attrcell) attr = attrcell;
+                        if (attrrow)
+                            attr = attrrow;
+                        if (attrcol)
+                        {
+                            if (attr)
+                                attr->DecRef();
+                            attr = attrcol;
+                        }
+                        if (attrcell)
+                        {
+                            if (attr)
+                                attr->DecRef();
+                            attr = attrcell;
+                        }
                     }
                 }
-            break;
+                break;
+
             case (wxGridCellAttr::Cell):
                 attr = m_data->m_cellAttrs.GetAttr(row, col);
-            break;
+                break;
+
             case (wxGridCellAttr::Col):
-                 attr = m_data->m_colAttrs.GetAttr(col);
-            break;
+                attr = m_data->m_colAttrs.GetAttr(col);
+                break;
+
             case (wxGridCellAttr::Row):
-            attr = m_data->m_rowAttrs.GetAttr(row);
-            break;
+                attr = m_data->m_rowAttrs.GetAttr(row);
+                break;
+
             default:
                 // unused as yet...
                 // (wxGridCellAttr::Default):
                 // (wxGridCellAttr::Merged):
-            break;
+                break;
         }
     }
+
     return attr;
 }
 
@@ -2434,7 +2907,6 @@ wxGridTypeRegistry::~wxGridTypeRegistry()
         delete m_typeinfo[i];
 }
 
-
 void wxGridTypeRegistry::RegisterDataType(const wxString& typeName,
                                           wxGridCellRenderer* renderer,
                                           wxGridCellEditor* editor)
@@ -2481,7 +2953,8 @@ int wxGridTypeRegistry::FindDataType(const wxString& typeName)
             RegisterDataType(wxGRID_VALUE_STRING,
                              new wxGridCellStringRenderer,
                              new wxGridCellTextEditor);
-        } else
+        }
+        else
 #endif // wxUSE_TEXTCTRL
 #if wxUSE_CHECKBOX
         if ( typeName == wxGRID_VALUE_BOOL )
@@ -2489,7 +2962,8 @@ int wxGridTypeRegistry::FindDataType(const wxString& typeName)
             RegisterDataType(wxGRID_VALUE_BOOL,
                              new wxGridCellBoolRenderer,
                              new wxGridCellBoolEditor);
-        } else
+        }
+        else
 #endif // wxUSE_CHECKBOX
 #if wxUSE_TEXTCTRL
         if ( typeName == wxGRID_VALUE_NUMBER )
@@ -2503,7 +2977,8 @@ int wxGridTypeRegistry::FindDataType(const wxString& typeName)
             RegisterDataType(wxGRID_VALUE_FLOAT,
                              new wxGridCellFloatRenderer,
                              new wxGridCellFloatEditor);
-        } else
+        }
+        else
 #endif // wxUSE_TEXTCTRL
 #if wxUSE_COMBOBOX
         if ( typeName == wxGRID_VALUE_CHOICE )
@@ -2511,7 +2986,8 @@ int wxGridTypeRegistry::FindDataType(const wxString& typeName)
             RegisterDataType(wxGRID_VALUE_CHOICE,
                              new wxGridCellStringRenderer,
                              new wxGridCellChoiceEditor);
-        } else
+        }
+        else
 #endif // wxUSE_COMBOBOX
         {
             return wxNOT_FOUND;
@@ -2568,6 +3044,7 @@ wxGridCellRenderer* wxGridTypeRegistry::GetRenderer(int index)
     wxGridCellRenderer* renderer = m_typeinfo[index]->m_renderer;
     if (renderer)
         renderer->IncRef();
+
     return renderer;
 }
 
@@ -2576,6 +3053,7 @@ wxGridCellEditor* wxGridTypeRegistry::GetEditor(int index)
     wxGridCellEditor* editor = m_typeinfo[index]->m_editor;
     if (editor)
         editor->IncRef();
+
     return editor;
 }
 
@@ -2585,7 +3063,6 @@ wxGridCellEditor* wxGridTypeRegistry::GetEditor(int index)
 
 IMPLEMENT_ABSTRACT_CLASS( wxGridTableBase, wxObject )
 
-
 wxGridTableBase::wxGridTableBase()
 {
     m_view = (wxGrid *) NULL;
@@ -2610,7 +3087,8 @@ bool wxGridTableBase::CanHaveAttributes()
         // use the default attr provider by default
         SetAttrProvider(new wxGridCellAttrProvider);
     }
-    return TRUE;
+
+    return true;
 }
 
 wxGridCellAttr *wxGridTableBase::GetAttr(int row, int col, wxGridCellAttr::wxAttrKind  kind)
@@ -2671,14 +3149,14 @@ bool wxGridTableBase::InsertRows( size_t WXUNUSED(pos),
 {
     wxFAIL_MSG( wxT("Called grid table class function InsertRows\nbut your derived table class does not override this function") );
 
-    return FALSE;
+    return false;
 }
 
 bool wxGridTableBase::AppendRows( size_t WXUNUSED(numRows) )
 {
     wxFAIL_MSG( wxT("Called grid table class function AppendRows\nbut your derived table class does not override this function"));
 
-    return FALSE;
+    return false;
 }
 
 bool wxGridTableBase::DeleteRows( size_t WXUNUSED(pos),
@@ -2686,7 +3164,7 @@ bool wxGridTableBase::DeleteRows( size_t WXUNUSED(pos),
 {
     wxFAIL_MSG( wxT("Called grid table class function DeleteRows\nbut your derived table class does not override this function"));
 
-    return FALSE;
+    return false;
 }
 
 bool wxGridTableBase::InsertCols( size_t WXUNUSED(pos),
@@ -2694,14 +3172,14 @@ bool wxGridTableBase::InsertCols( size_t WXUNUSED(pos),
 {
     wxFAIL_MSG( wxT("Called grid table class function InsertCols\nbut your derived table class does not override this function"));
 
-    return FALSE;
+    return false;
 }
 
 bool wxGridTableBase::AppendCols( size_t WXUNUSED(numCols) )
 {
     wxFAIL_MSG(wxT("Called grid table class function AppendCols\nbut your derived table class does not override this function"));
 
-    return FALSE;
+    return false;
 }
 
 bool wxGridTableBase::DeleteCols( size_t WXUNUSED(pos),
@@ -2709,15 +3187,17 @@ bool wxGridTableBase::DeleteCols( size_t WXUNUSED(pos),
 {
     wxFAIL_MSG( wxT("Called grid table class function DeleteCols\nbut your derived table class does not override this function"));
 
-    return FALSE;
+    return false;
 }
 
-
 wxString wxGridTableBase::GetRowLabelValue( int row )
 {
     wxString s;
-    s << row + 1; // RD: Starting the rows at zero confuses users, no matter
-                  //     how much it makes sense to us geeks.
+
+    // RD: Starting the rows at zero confuses users,
+    // no matter how much it makes sense to us geeks.
+    s << row + 1;
+
     return s;
 }
 
@@ -2732,22 +3212,22 @@ wxString wxGridTableBase::GetColLabelValue( int col )
     unsigned int i, n;
     for ( n = 1; ; n++ )
     {
-        s += (_T('A') + (wxChar)( col%26 ));
-        col = col/26 - 1;
-        if ( col < 0 ) break;
+        s += (wxChar) (_T('A') + (wxChar)(col % 26));
+        col = col / 26 - 1;
+        if ( col < 0 )
+            break;
     }
 
     // reverse the string...
     wxString s2;
-    for ( i = 0;  i < n;  i++ )
+    for ( i = 0; i < n; i++ )
     {
-        s2 += s[n-i-1];
+        s2 += s[n - i - 1];
     }
 
     return s2;
 }
 
-
 wxString wxGridTableBase::GetTypeName( int WXUNUSED(row), int WXUNUSED(col) )
 {
     return wxGRID_VALUE_STRING;
@@ -2776,7 +3256,7 @@ double wxGridTableBase::GetValueAsDouble( int WXUNUSED(row), int WXUNUSED(col) )
 
 bool wxGridTableBase::GetValueAsBool( int WXUNUSED(row), int WXUNUSED(col) )
 {
-    return FALSE;
+    return false;
 }
 
 void wxGridTableBase::SetValueAsLong( int WXUNUSED(row), int WXUNUSED(col),
@@ -2794,7 +3274,6 @@ void wxGridTableBase::SetValueAsBool( int WXUNUSED(row), int WXUNUSED(col),
 {
 }
 
-
 void* wxGridTableBase::GetValueAsCustom( int WXUNUSED(row), int WXUNUSED(col),
                                          const wxString& WXUNUSED(typeName) )
 {
@@ -2830,8 +3309,6 @@ wxGridTableMessage::wxGridTableMessage( wxGridTableBase *table, int id,
     m_comInt2 = commandInt2;
 }
 
-
-
 //////////////////////////////////////////////////////////////////////
 //
 // A basic grid table for string data. An object of this class will
@@ -2850,21 +3327,13 @@ wxGridStringTable::wxGridStringTable()
 wxGridStringTable::wxGridStringTable( int numRows, int numCols )
         : wxGridTableBase()
 {
-    int row, col;
-
     m_data.Alloc( numRows );
 
     wxArrayString sa;
     sa.Alloc( numCols );
-    for ( col = 0;  col < numCols;  col++ )
-    {
-        sa.Add( wxEmptyString );
-    }
+    sa.Add( wxEmptyString, numCols );
 
-    for ( row = 0;  row < numRows;  row++ )
-    {
-        m_data.Add( sa );
-    }
+    m_data.Add( sa, numRows );
 }
 
 wxGridStringTable::~wxGridStringTable()
@@ -2886,23 +3355,25 @@ int wxGridStringTable::GetNumberCols()
 
 wxString wxGridStringTable::GetValue( int row, int col )
 {
-    wxASSERT_MSG( (row < GetNumberRows()) && (col < GetNumberCols()),
-                  _T("invalid row or column index in wxGridStringTable") );
+    wxCHECK_MSG( (row < GetNumberRows()) && (col < GetNumberCols()),
+                 wxEmptyString,
+                 _T("invalid row or column index in wxGridStringTable") );
 
     return m_data[row][col];
 }
 
 void wxGridStringTable::SetValue( int row, int col, const wxString& value )
 {
-    wxASSERT_MSG( (row < GetNumberRows()) && (col < GetNumberCols()),
-                  _T("invalid row or column index in wxGridStringTable") );
+    wxCHECK_RET( (row < GetNumberRows()) && (col < GetNumberCols()),
+                 _T("invalid row or column index in wxGridStringTable") );
 
     m_data[row][col] = value;
 }
 
 bool wxGridStringTable::IsEmptyCell( int row, int col )
 {
-    wxASSERT_MSG( (row < GetNumberRows()) && (col < GetNumberCols()),
+    wxCHECK_MSG( (row < GetNumberRows()) && (col < GetNumberCols()),
+                 true,
                   _T("invalid row or column index in wxGridStringTable") );
 
     return (m_data[row][col] == wxEmptyString);
@@ -2918,9 +3389,9 @@ void wxGridStringTable::Clear()
     {
         numCols = m_data[0].GetCount();
 
-        for ( row = 0;  row < numRows;  row++ )
+        for ( row = 0; row < numRows; row++ )
         {
-            for ( col = 0;  col < numCols;  col++ )
+            for ( col = 0; col < numCols; col++ )
             {
                 m_data[row][col] = wxEmptyString;
             }
@@ -2928,11 +3399,8 @@ void wxGridStringTable::Clear()
     }
 }
 
-
 bool wxGridStringTable::InsertRows( size_t pos, size_t numRows )
 {
-    size_t row, col;
-
     size_t curNumRows = m_data.GetCount();
     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
                           ( GetView() ? GetView()->GetNumberCols() : 0 ) );
@@ -2944,15 +3412,9 @@ bool wxGridStringTable::InsertRows( size_t pos, size_t numRows )
 
     wxArrayString sa;
     sa.Alloc( curNumCols );
-    for ( col = 0;  col < curNumCols;  col++ )
-    {
-        sa.Add( wxEmptyString );
-    }
+    sa.Add( wxEmptyString, curNumCols );
+    m_data.Insert( sa, pos, numRows );
 
-    for ( row = pos;  row < pos + numRows;  row++ )
-    {
-        m_data.Insert( sa, row );
-    }
     if ( GetView() )
     {
         wxGridTableMessage msg( this,
@@ -2963,31 +3425,24 @@ bool wxGridStringTable::InsertRows( size_t pos, size_t numRows )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 bool wxGridStringTable::AppendRows( size_t numRows )
 {
-    size_t row, col;
-
     size_t curNumRows = m_data.GetCount();
-    size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
-                          ( GetView() ? GetView()->GetNumberCols() : 0 ) );
+    size_t curNumCols = ( curNumRows > 0
+                         ? m_data[0].GetCount()
+                         : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
 
     wxArrayString sa;
     if ( curNumCols > 0 )
     {
         sa.Alloc( curNumCols );
-        for ( col = 0;  col < curNumCols;  col++ )
-        {
-            sa.Add( wxEmptyString );
-        }
+        sa.Add( wxEmptyString, curNumCols );
     }
 
-    for ( row = 0;  row < numRows;  row++ )
-    {
-        m_data.Add( sa );
-    }
+    m_data.Add( sa, numRows );
 
     if ( GetView() )
     {
@@ -2998,22 +3453,24 @@ bool wxGridStringTable::AppendRows( size_t numRows )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
 {
-    size_t n;
-
     size_t curNumRows = m_data.GetCount();
 
     if ( pos >= curNumRows )
     {
-        wxString errmsg;
-        errmsg.Printf(wxT("Called wxGridStringTable::DeleteRows(pos=%d, N=%d)\nPos value is invalid for present table with %d rows"),
-                      pos, numRows, curNumRows );
-        wxFAIL_MSG( errmsg );
-        return FALSE;
+        wxFAIL_MSG( wxString::Format
+                    (
+                        wxT("Called wxGridStringTable::DeleteRows(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu rows"),
+                        (unsigned long)pos,
+                        (unsigned long)numRows,
+                        (unsigned long)curNumRows
+                    ) );
+
+        return false;
     }
 
     if ( numRows > curNumRows - pos )
@@ -3023,15 +3480,13 @@ bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
 
     if ( numRows >= curNumRows )
     {
-        m_data.Empty();  // don't release memory just yet
+        m_data.Clear();
     }
     else
     {
-        for ( n = 0;  n < numRows;  n++ )
-        {
-            m_data.RemoveAt( pos );
-        }
+        m_data.RemoveAt( pos, numRows );
     }
+
     if ( GetView() )
     {
         wxGridTableMessage msg( this,
@@ -3042,7 +3497,7 @@ bool wxGridStringTable::DeleteRows( size_t pos, size_t numRows )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
@@ -3050,21 +3505,32 @@ bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
     size_t row, col;
 
     size_t curNumRows = m_data.GetCount();
-    size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
-                          ( GetView() ? GetView()->GetNumberCols() : 0 ) );
+    size_t curNumCols = ( curNumRows > 0
+                         ? m_data[0].GetCount()
+                         : ( GetView() ? GetView()->GetNumberCols() : 0 ) );
 
     if ( pos >= curNumCols )
     {
         return AppendCols( numCols );
     }
 
-    for ( row = 0;  row < curNumRows;  row++ )
+    if ( !m_colLabels.IsEmpty() )
+    {
+        m_colLabels.Insert( wxEmptyString, pos, numCols );
+
+        size_t i;
+        for ( i = pos; i < pos + numCols; i++ )
+            m_colLabels[i] = wxGridTableBase::GetColLabelValue( i );
+    }
+
+    for ( row = 0; row < curNumRows; row++ )
     {
-        for ( col = pos;  col < pos + numCols;  col++ )
+        for ( col = pos; col < pos + numCols; col++ )
         {
             m_data[row].Insert( wxEmptyString, col );
         }
     }
+
     if ( GetView() )
     {
         wxGridTableMessage msg( this,
@@ -3075,30 +3541,28 @@ bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 bool wxGridStringTable::AppendCols( size_t numCols )
 {
-    size_t row, n;
+    size_t row;
 
     size_t curNumRows = m_data.GetCount();
+
 #if 0
     if ( !curNumRows )
     {
         // TODO: something better than this ?
         //
         wxFAIL_MSG( wxT("Unable to append cols to a grid table with no rows.\nCall AppendRows() first") );
-        return FALSE;
+        return false;
     }
 #endif
 
-    for ( row = 0;  row < curNumRows;  row++ )
+    for ( row = 0; row < curNumRows; row++ )
     {
-        for ( n = 0;  n < numCols;  n++ )
-        {
-            m_data[row].Add( wxEmptyString );
-        }
+        m_data[row].Add( wxEmptyString, numCols );
     }
 
     if ( GetView() )
@@ -3110,12 +3574,12 @@ bool wxGridStringTable::AppendCols( size_t numCols )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
 {
-    size_t row, n;
+    size_t row;
 
     size_t curNumRows = m_data.GetCount();
     size_t curNumCols = ( curNumRows > 0 ? m_data[0].GetCount() :
@@ -3123,19 +3587,33 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
 
     if ( pos >= curNumCols )
     {
-        wxString errmsg;
-        errmsg.Printf( wxT("Called wxGridStringTable::DeleteCols(pos=%d, N=%d)...\nPos value is invalid for present table with %d cols"),
-                        pos, numCols, curNumCols );
-        wxFAIL_MSG( errmsg );
-        return FALSE;
+        wxFAIL_MSG( wxString::Format
+                    (
+                        wxT("Called wxGridStringTable::DeleteCols(pos=%lu, N=%lu)\nPos value is invalid for present table with %lu cols"),
+                        (unsigned long)pos,
+                        (unsigned long)numCols,
+                        (unsigned long)curNumCols
+                    ) );
+        return false;
+    }
+
+    int colID;
+    if ( GetView() )
+        colID = GetView()->GetColAt( pos );
+    else
+        colID = pos;
+
+    if ( numCols > curNumCols - colID )
+    {
+        numCols = curNumCols - colID;
     }
 
-    if ( numCols > curNumCols - pos )
+    if ( !m_colLabels.IsEmpty() )
     {
-        numCols = curNumCols - pos;
+        m_colLabels.RemoveAt( colID, numCols );
     }
 
-    for ( row = 0;  row < curNumRows;  row++ )
+    for ( row = 0; row < curNumRows; row++ )
     {
         if ( numCols >= curNumCols )
         {
@@ -3143,12 +3621,10 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
         }
         else
         {
-            for ( n = 0;  n < numCols;  n++ )
-            {
-                m_data[row].RemoveAt( pos );
-            }
+            m_data[row].RemoveAt( colID, numCols );
         }
     }
+
     if ( GetView() )
     {
         wxGridTableMessage msg( this,
@@ -3159,7 +3635,7 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
         GetView()->ProcessTableMessage( msg );
     }
 
-    return TRUE;
+    return true;
 }
 
 wxString wxGridStringTable::GetRowLabelValue( int row )
@@ -3172,7 +3648,7 @@ wxString wxGridStringTable::GetRowLabelValue( int row )
     }
     else
     {
-        return m_rowLabels[ row ];
+        return m_rowLabels[row];
     }
 }
 
@@ -3186,7 +3662,7 @@ wxString wxGridStringTable::GetColLabelValue( int col )
     }
     else
     {
-        return m_colLabels[ col ];
+        return m_colLabels[col];
     }
 }
 
@@ -3196,7 +3672,8 @@ void wxGridStringTable::SetRowLabelValue( int row, const wxString& value )
     {
         int n = m_rowLabels.GetCount();
         int i;
-        for ( i = n;  i <= row;  i++ )
+
+        for ( i = n; i <= row; i++ )
         {
             m_rowLabels.Add( wxGridTableBase::GetRowLabelValue(i) );
         }
@@ -3211,7 +3688,8 @@ void wxGridStringTable::SetColLabelValue( int col, const wxString& value )
     {
         int n = m_colLabels.GetCount();
         int i;
-        for ( i = n;  i <= col;  i++ )
+
+        for ( i = n; i <= col; i++ )
         {
             m_colLabels.Add( wxGridTableBase::GetColLabelValue(i) );
         }
@@ -3221,7 +3699,6 @@ void wxGridStringTable::SetColLabelValue( int col, const wxString& value )
 }
 
 
-
 //////////////////////////////////////////////////////////////////////
 //////////////////////////////////////////////////////////////////////
 
@@ -3229,16 +3706,17 @@ IMPLEMENT_DYNAMIC_CLASS( wxGridRowLabelWindow, wxWindow )
 
 BEGIN_EVENT_TABLE( wxGridRowLabelWindow, wxWindow )
     EVT_PAINT( wxGridRowLabelWindow::OnPaint )
-    EVT_MOUSEWHEEL( wxGridRowLabelWindow::OnMouseWheel)
+    EVT_MOUSEWHEEL( wxGridRowLabelWindow::OnMouseWheel )
     EVT_MOUSE_EVENTS( wxGridRowLabelWindow::OnMouseEvent )
     EVT_KEY_DOWN( wxGridRowLabelWindow::OnKeyDown )
     EVT_KEY_UP( wxGridRowLabelWindow::OnKeyUp )
+    EVT_CHAR( wxGridRowLabelWindow::OnChar )
 END_EVENT_TABLE()
 
 wxGridRowLabelWindow::wxGridRowLabelWindow( wxGrid *parent,
                                             wxWindowID id,
                                             const wxPoint &pos, const wxSize &size )
-  : wxWindow( parent, id, pos, size, wxWANTS_CHARS )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3258,36 +3736,39 @@ void wxGridRowLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
     dc.SetDeviceOrigin( 0, -y );
 
     wxArrayInt rows = m_owner->CalcRowLabelsExposed( GetUpdateRegion() );
-    m_owner->DrawRowLabels( dc , rows );
+    m_owner->DrawRowLabels( dc, rows );
 }
 
-
 void wxGridRowLabelWindow::OnMouseEvent( wxMouseEvent& event )
 {
     m_owner->ProcessRowLabelMouseEvent( event );
 }
 
-
 void wxGridRowLabelWindow::OnMouseWheel( wxMouseEvent& event )
 {
-    m_owner->GetEventHandler()->ProcessEvent(event);
+    m_owner->GetEventHandler()->ProcessEvent( event );
 }
 
-
 // This seems to be required for wxMotif otherwise the mouse
 // cursor must be in the cell edit control to get key events
 //
 void wxGridRowLabelWindow::OnKeyDown( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
 void wxGridRowLabelWindow::OnKeyUp( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
-
+void wxGridRowLabelWindow::OnChar( wxKeyEvent& event )
+{
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
+}
 
 //////////////////////////////////////////////////////////////////////
 
@@ -3295,16 +3776,17 @@ IMPLEMENT_DYNAMIC_CLASS( wxGridColLabelWindow, wxWindow )
 
 BEGIN_EVENT_TABLE( wxGridColLabelWindow, wxWindow )
     EVT_PAINT( wxGridColLabelWindow::OnPaint )
-    EVT_MOUSEWHEEL( wxGridColLabelWindow::OnMouseWheel)
+    EVT_MOUSEWHEEL( wxGridColLabelWindow::OnMouseWheel )
     EVT_MOUSE_EVENTS( wxGridColLabelWindow::OnMouseEvent )
     EVT_KEY_DOWN( wxGridColLabelWindow::OnKeyDown )
     EVT_KEY_UP( wxGridColLabelWindow::OnKeyUp )
+    EVT_CHAR( wxGridColLabelWindow::OnChar )
 END_EVENT_TABLE()
 
 wxGridColLabelWindow::wxGridColLabelWindow( wxGrid *parent,
                                             wxWindowID id,
                                             const wxPoint &pos, const wxSize &size )
-  : wxWindow( parent, id, pos, size, wxWANTS_CHARS )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3324,10 +3806,9 @@ void wxGridColLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
     dc.SetDeviceOrigin( -x, 0 );
 
     wxArrayInt cols = m_owner->CalcColLabelsExposed( GetUpdateRegion() );
-    m_owner->DrawColLabels( dc , cols );
+    m_owner->DrawColLabels( dc, cols );
 }
 
-
 void wxGridColLabelWindow::OnMouseEvent( wxMouseEvent& event )
 {
     m_owner->ProcessColLabelMouseEvent( event );
@@ -3335,41 +3816,47 @@ void wxGridColLabelWindow::OnMouseEvent( wxMouseEvent& event )
 
 void wxGridColLabelWindow::OnMouseWheel( wxMouseEvent& event )
 {
-    m_owner->GetEventHandler()->ProcessEvent(event);
+    m_owner->GetEventHandler()->ProcessEvent( event );
 }
 
-
 // This seems to be required for wxMotif otherwise the mouse
 // cursor must be in the cell edit control to get key events
 //
 void wxGridColLabelWindow::OnKeyDown( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
 void wxGridColLabelWindow::OnKeyUp( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
-
+void wxGridColLabelWindow::OnChar( wxKeyEvent& event )
+{
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
+}
 
 //////////////////////////////////////////////////////////////////////
 
 IMPLEMENT_DYNAMIC_CLASS( wxGridCornerLabelWindow, wxWindow )
 
 BEGIN_EVENT_TABLE( wxGridCornerLabelWindow, wxWindow )
-    EVT_MOUSEWHEEL( wxGridCornerLabelWindow::OnMouseWheel)
+    EVT_MOUSEWHEEL( wxGridCornerLabelWindow::OnMouseWheel )
     EVT_MOUSE_EVENTS( wxGridCornerLabelWindow::OnMouseEvent )
-    EVT_PAINT( wxGridCornerLabelWindow::OnPaint)
+    EVT_PAINT( wxGridCornerLabelWindow::OnPaint )
     EVT_KEY_DOWN( wxGridCornerLabelWindow::OnKeyDown )
     EVT_KEY_UP( wxGridCornerLabelWindow::OnKeyUp )
+    EVT_CHAR( wxGridCornerLabelWindow::OnChar )
 END_EVENT_TABLE()
 
 wxGridCornerLabelWindow::wxGridCornerLabelWindow( wxGrid *parent,
                                                   wxWindowID id,
                                                   const wxPoint &pos, const wxSize &size )
-  : wxWindow( parent, id, pos, size, wxWANTS_CHARS )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3382,22 +3869,33 @@ void wxGridCornerLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
     int client_width = 0;
     GetClientSize( &client_width, &client_height );
 
-    dc.SetPen( *wxBLACK_PEN );
-    dc.DrawLine( client_width-1, client_height-1, client_width-1, 0 );
-    dc.DrawLine( client_width-1, client_height-1, 0, client_height-1 );
-
-    dc.SetPen( *wxWHITE_PEN );
+    // VZ: any reason for this ifdef? (FIXME)
+#ifdef __WXGTK__
+    wxRect rect;
+    rect.SetX( 1 );
+    rect.SetY( 1 );
+    rect.SetWidth( client_width - 2 );
+    rect.SetHeight( client_height - 2 );
+
+    wxRendererNative::Get().DrawHeaderButton( this, dc, rect, 0 );
+#else // !__WXGTK__
+    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW), 1, wxSOLID) );
+    dc.DrawLine( client_width - 1, client_height - 1, client_width - 1, 0 );
+    dc.DrawLine( client_width - 1, client_height - 1, 0, client_height - 1 );
     dc.DrawLine( 0, 0, client_width, 0 );
     dc.DrawLine( 0, 0, 0, client_height );
-}
 
+    dc.SetPen( *wxWHITE_PEN );
+    dc.DrawLine( 1, 1, client_width - 1, 1 );
+    dc.DrawLine( 1, 1, 1, client_height - 1 );
+#endif
+}
 
 void wxGridCornerLabelWindow::OnMouseEvent( wxMouseEvent& event )
 {
     m_owner->ProcessCornerLabelMouseEvent( event );
 }
 
-
 void wxGridCornerLabelWindow::OnMouseWheel( wxMouseEvent& event )
 {
     m_owner->GetEventHandler()->ProcessEvent(event);
@@ -3408,15 +3906,21 @@ void wxGridCornerLabelWindow::OnMouseWheel( wxMouseEvent& event )
 //
 void wxGridCornerLabelWindow::OnKeyDown( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
 void wxGridCornerLabelWindow::OnKeyUp( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
-
+void wxGridCornerLabelWindow::OnChar( wxKeyEvent& event )
+{
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
+}
 
 //////////////////////////////////////////////////////////////////////
 
@@ -3424,46 +3928,48 @@ IMPLEMENT_DYNAMIC_CLASS( wxGridWindow, wxWindow )
 
 BEGIN_EVENT_TABLE( wxGridWindow, wxWindow )
     EVT_PAINT( wxGridWindow::OnPaint )
-    EVT_MOUSEWHEEL( wxGridWindow::OnMouseWheel)
+    EVT_MOUSEWHEEL( wxGridWindow::OnMouseWheel )
     EVT_MOUSE_EVENTS( wxGridWindow::OnMouseEvent )
     EVT_KEY_DOWN( wxGridWindow::OnKeyDown )
     EVT_KEY_UP( wxGridWindow::OnKeyUp )
+    EVT_CHAR( wxGridWindow::OnChar )
+    EVT_SET_FOCUS( wxGridWindow::OnFocus )
+    EVT_KILL_FOCUS( wxGridWindow::OnFocus )
     EVT_ERASE_BACKGROUND( wxGridWindow::OnEraseBackground )
 END_EVENT_TABLE()
 
 wxGridWindow::wxGridWindow( wxGrid *parent,
                             wxGridRowLabelWindow *rowLblWin,
                             wxGridColLabelWindow *colLblWin,
-                            wxWindowID id, const wxPoint &pos, const wxSize &size )
-        : wxWindow( parent, id, pos, size, wxWANTS_CHARS, "grid window" )
+                            wxWindowID id,
+                            const wxPoint &pos,
+                            const wxSize &size )
+            : wxWindow(
+                parent, id, pos, size,
+                wxWANTS_CHARS | wxBORDER_NONE | wxCLIP_CHILDREN | wxFULL_REPAINT_ON_RESIZE,
+                wxT("grid window") )
 {
     m_owner = parent;
     m_rowLabelWin = rowLblWin;
     m_colLabelWin = colLblWin;
-    SetBackgroundColour(_T("WHITE"));
 }
 
-
-wxGridWindow::~wxGridWindow()
-{
-}
-
-
 void wxGridWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 {
     wxPaintDC dc( this );
     m_owner->PrepareDC( dc );
     wxRegion reg = GetUpdateRegion();
-    wxGridCellCoordsArray DirtyCells = m_owner->CalcCellsExposed( reg );
-    m_owner->DrawGridCellArea( dc , DirtyCells);
+    wxGridCellCoordsArray dirtyCells = m_owner->CalcCellsExposed( reg );
+    m_owner->DrawGridCellArea( dc, dirtyCells );
+
 #if WXGRID_DRAW_LINES
     m_owner->DrawAllGridLines( dc, reg );
 #endif
+
     m_owner->DrawGridSpace( dc );
-    m_owner->DrawHighlight( dc , DirtyCells );
+    m_owner->DrawHighlight( dc, dirtyCells );
 }
 
-
 void wxGridWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
 {
     wxWindow::ScrollWindow( dx, dy, rect );
@@ -3471,15 +3977,17 @@ void wxGridWindow::ScrollWindow( int dx, int dy, const wxRect *rect )
     m_colLabelWin->ScrollWindow( dx, 0, rect );
 }
 
-
 void wxGridWindow::OnMouseEvent( wxMouseEvent& event )
 {
+    if (event.ButtonDown(wxMOUSE_BTN_LEFT) && FindFocus() != this)
+        SetFocus();
+
     m_owner->ProcessGridCellMouseEvent( event );
 }
 
 void wxGridWindow::OnMouseWheel( wxMouseEvent& event )
 {
-    m_owner->GetEventHandler()->ProcessEvent(event);
+    m_owner->GetEventHandler()->ProcessEvent( event );
 }
 
 // This seems to be required for wxMotif/wxGTK otherwise the mouse
@@ -3487,32 +3995,123 @@ void wxGridWindow::OnMouseWheel( wxMouseEvent& event )
 //
 void wxGridWindow::OnKeyDown( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
 void wxGridWindow::OnKeyUp( wxKeyEvent& event )
 {
-    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) ) event.Skip();
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
+}
+
+void wxGridWindow::OnChar( wxKeyEvent& event )
+{
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
 }
 
 void wxGridWindow::OnEraseBackground( wxEraseEvent& WXUNUSED(event) )
 {
 }
 
+void wxGridWindow::OnFocus(wxFocusEvent& event)
+{
+    if ( !m_owner->GetEventHandler()->ProcessEvent( event ) )
+        event.Skip();
+}
 
 //////////////////////////////////////////////////////////////////////
 
+// Internal Helper function for computing row or column from some
+// (unscrolled) coordinate value, using either
+// m_defaultRowHeight/m_defaultColWidth or binary search on array
+// of m_rowBottoms/m_ColRights to speed up the search!
+
+// Internal helper macros for simpler use of that function
 
+static int CoordToRowOrCol(int coord, int defaultDist, int minDist,
+                           const wxArrayInt& BorderArray, int nMax,
+                           bool clipToMinMax);
+
+#define internalXToCol(x) XToCol(x, true)
+#define internalYToRow(y) CoordToRowOrCol(y, m_defaultRowHeight, \
+                                          m_minAcceptableRowHeight, \
+                                          m_rowBottoms, m_numRows, true)
+
+/////////////////////////////////////////////////////////////////////
+
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxGridStyle )
+
+wxBEGIN_FLAGS( wxGridStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB)
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+wxEND_FLAGS( wxGridStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxGrid, wxScrolledWindow,"wx/grid.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxGrid)
+    wxHIDE_PROPERTY( Children )
+    wxPROPERTY_FLAGS( WindowStyle , wxGridStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxGrid)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxGrid , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+
+/*
+ TODO : Expose more information of a list's layout, etc. via appropriate objects (e.g., NotebookPageInfo)
+*/
+#else
 IMPLEMENT_DYNAMIC_CLASS( wxGrid, wxScrolledWindow )
+#endif
 
 BEGIN_EVENT_TABLE( wxGrid, wxScrolledWindow )
     EVT_PAINT( wxGrid::OnPaint )
     EVT_SIZE( wxGrid::OnSize )
     EVT_KEY_DOWN( wxGrid::OnKeyDown )
     EVT_KEY_UP( wxGrid::OnKeyUp )
+    EVT_CHAR ( wxGrid::OnChar )
     EVT_ERASE_BACKGROUND( wxGrid::OnEraseBackground )
 END_EVENT_TABLE()
 
+wxGrid::wxGrid()
+{
+    // in order to make sure that a size event is not
+    // trigerred in a unfinished state
+    m_cornerLabelWin = NULL;
+    m_rowLabelWin = NULL;
+    m_colLabelWin = NULL;
+    m_gridWin = NULL;
+}
+
 wxGrid::wxGrid( wxWindow *parent,
                  wxWindowID id,
                  const wxPoint& pos,
@@ -3524,8 +4123,25 @@ wxGrid::wxGrid( wxWindow *parent,
     m_rowMinHeights(GRID_HASH_SIZE)
 {
     Create();
+    SetBestFittingSize(size);
 }
 
+bool wxGrid::Create(wxWindow *parent, wxWindowID id,
+                          const wxPoint& pos, const wxSize& size,
+                          long style, const wxString& name)
+{
+    if (!wxScrolledWindow::Create(parent, id, pos, size,
+                                  style | wxWANTS_CHARS, name))
+        return false;
+
+    m_colMinWidths = wxLongToLongHashMap(GRID_HASH_SIZE);
+    m_rowMinHeights = wxLongToLongHashMap(GRID_HASH_SIZE);
+
+    Create();
+    SetBestFittingSize(size);
+
+    return true;
+}
 
 wxGrid::~wxGrid()
 {
@@ -3549,19 +4165,27 @@ wxGrid::~wxGrid()
     delete m_selection;
 }
 
-
 //
 // ----- internal init and update functions
 //
 
+// NOTE: If using the default visual attributes works everywhere then this can
+// be removed as well as the #else cases below.
+#define _USE_VISATTR 0
+
 void wxGrid::Create()
 {
-    m_created = FALSE;    // set to TRUE by CreateGrid
+    // set to true by CreateGrid
+    m_created = false;
+
+    // create the type registry
+    m_typeRegistry = new wxGridTypeRegistry;
+    m_selection = NULL;
 
-    m_table        = (wxGridTableBase *) NULL;
-    m_ownTable     = FALSE;
+    m_table = (wxGridTableBase *) NULL;
+    m_ownTable = false;
 
-    m_cellEditCtrlEnabled = FALSE;
+    m_cellEditCtrlEnabled = false;
 
     m_defaultCellAttr = new wxGridCellAttr();
 
@@ -3570,13 +4194,22 @@ void wxGrid::Create()
     m_defaultCellAttr->SetKind(wxGridCellAttr::Default);
     m_defaultCellAttr->SetFont(GetFont());
     m_defaultCellAttr->SetAlignment(wxALIGN_LEFT, wxALIGN_TOP);
+    m_defaultCellAttr->SetRenderer(new wxGridCellStringRenderer);
+    m_defaultCellAttr->SetEditor(new wxGridCellTextEditor);
+
+#if _USE_VISATTR
+    wxVisualAttributes gva = wxListBox::GetClassDefaultAttributes();
+    wxVisualAttributes lva = wxPanel::GetClassDefaultAttributes();
+
+    m_defaultCellAttr->SetTextColour(gva.colFg);
+    m_defaultCellAttr->SetBackgroundColour(gva.colBg);
+
+#else
     m_defaultCellAttr->SetTextColour(
         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
     m_defaultCellAttr->SetBackgroundColour(
         wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
-    m_defaultCellAttr->SetRenderer(new wxGridCellStringRenderer);
-    m_defaultCellAttr->SetEditor(new wxGridCellTextEditor);
-
+#endif
 
     m_numRows = 0;
     m_numCols = 0;
@@ -3585,43 +4218,61 @@ void wxGrid::Create()
     m_rowLabelWidth = WXGRID_DEFAULT_ROW_LABEL_WIDTH;
     m_colLabelHeight = WXGRID_DEFAULT_COL_LABEL_HEIGHT;
 
-    // create the type registry
-    m_typeRegistry = new wxGridTypeRegistry;
-    m_selection = 0;
     // subwindow components that make up the wxGrid
-    m_cornerLabelWin = new wxGridCornerLabelWindow( this,
-                                                    -1,
-                                                    wxDefaultPosition,
-                                                    wxDefaultSize );
-
     m_rowLabelWin = new wxGridRowLabelWindow( this,
-                                              -1,
+                                              wxID_ANY,
                                               wxDefaultPosition,
                                               wxDefaultSize );
 
     m_colLabelWin = new wxGridColLabelWindow( this,
-                                              -1,
+                                              wxID_ANY,
                                               wxDefaultPosition,
                                               wxDefaultSize );
 
+    m_cornerLabelWin = new wxGridCornerLabelWindow( this,
+                                                    wxID_ANY,
+                                                    wxDefaultPosition,
+                                                    wxDefaultSize );
+
     m_gridWin = new wxGridWindow( this,
                                   m_rowLabelWin,
                                   m_colLabelWin,
-                                  -1,
+                                  wxID_ANY,
                                   wxDefaultPosition,
                                   wxDefaultSize );
 
     SetTargetWindow( m_gridWin );
 
+#if _USE_VISATTR
+    wxColour gfg = gva.colFg;
+    wxColour gbg = gva.colBg;
+    wxColour lfg = lva.colFg;
+    wxColour lbg = lva.colBg;
+#else
+    wxColour gfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
+    wxColour gbg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW );
+    wxColour lfg = wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT );
+    wxColour lbg = wxSystemSettings::GetColour( wxSYS_COLOUR_BTNFACE );
+#endif
+
+    m_cornerLabelWin->SetOwnForegroundColour(lfg);
+    m_cornerLabelWin->SetOwnBackgroundColour(lbg);
+    m_rowLabelWin->SetOwnForegroundColour(lfg);
+    m_rowLabelWin->SetOwnBackgroundColour(lbg);
+    m_colLabelWin->SetOwnForegroundColour(lfg);
+    m_colLabelWin->SetOwnBackgroundColour(lbg);
+
+    m_gridWin->SetOwnForegroundColour(gfg);
+    m_gridWin->SetOwnBackgroundColour(gbg);
+
     Init();
 }
 
-
 bool wxGrid::CreateGrid( int numRows, int numCols,
                          wxGrid::wxGridSelectionModes selmode )
 {
     wxCHECK_MSG( !m_created,
-                 FALSE,
+                 false,
                  wxT("wxGrid::CreateGrid or wxGrid::SetTable called more than once") );
 
     m_numRows = numRows;
@@ -3629,12 +4280,12 @@ bool wxGrid::CreateGrid( int numRows, int numCols,
 
     m_table = new wxGridStringTable( m_numRows, m_numCols );
     m_table->SetView( this );
-    m_ownTable = TRUE;
+    m_ownTable = true;
     m_selection = new wxGridSelection( this, selmode );
 
     CalcDimensions();
 
-    m_created = TRUE;
+    m_created = true;
 
     return m_created;
 }
@@ -3647,40 +4298,55 @@ void wxGrid::SetSelectionMode(wxGrid::wxGridSelectionModes selmode)
     m_selection->SetSelectionMode( selmode );
 }
 
+wxGrid::wxGridSelectionModes wxGrid::GetSelectionMode() const
+{
+    wxCHECK_MSG( m_created, wxGrid::wxGridSelectCells,
+                 wxT("Called wxGrid::GetSelectionMode() before calling CreateGrid()") );
+
+    return m_selection->GetSelectionMode();
+}
+
 bool wxGrid::SetTable( wxGridTableBase *table, bool takeOwnership,
                        wxGrid::wxGridSelectionModes selmode )
 {
     if ( m_created )
     {
-        // RD: Actually, this should probably be allowed.  I think it would be
-        // nice to be able to switch multiple Tables in and out of a single
-        // View at runtime.  Is there anything in the implmentation that would
-        // prevent this?
+        // stop all processing
+        m_created = false;
 
-        // At least, you now have to cope with m_selection
-        wxFAIL_MSG( wxT("wxGrid::CreateGrid or wxGrid::SetTable called more than once") );
-        return FALSE;
+        if (m_ownTable)
+        {
+            wxGridTableBase *t = m_table;
+            m_table = NULL;
+            delete t;
+        }
+
+        delete m_selection;
+
+        m_table = NULL;
+        m_selection = NULL;
+        m_numRows = 0;
+        m_numCols = 0;
     }
-    else
+
+    if (table)
     {
         m_numRows = table->GetNumberRows();
         m_numCols = table->GetNumberCols();
 
         m_table = table;
         m_table->SetView( this );
-        if (takeOwnership)
-            m_ownTable = TRUE;
+        m_ownTable = takeOwnership;
         m_selection = new wxGridSelection( this, selmode );
 
         CalcDimensions();
 
-        m_created = TRUE;
+        m_created = true;
     }
 
     return m_created;
 }
 
-
 void wxGrid::Init()
 {
     m_rowLabelWidth  = WXGRID_DEFAULT_ROW_LABEL_WIDTH;
@@ -3692,51 +4358,60 @@ void wxGrid::Init()
     }
     else
     {
-        m_labelBackgroundColour = wxColour( _T("WHITE") );
+        m_labelBackgroundColour = *wxWHITE;
     }
 
-    m_labelTextColour = wxColour( _T("BLACK") );
+    m_labelTextColour = *wxBLACK;
 
     // init attr cache
     m_attrCache.row = -1;
+    m_attrCache.col = -1;
+    m_attrCache.attr = NULL;
 
     // TODO: something better than this ?
     //
     m_labelFont = this->GetFont();
-    m_labelFont.SetWeight( m_labelFont.GetWeight() + 2 );
+    m_labelFont.SetWeight( wxBOLD );
 
-    m_rowLabelHorizAlign = wxALIGN_LEFT;
+    m_rowLabelHorizAlign = wxALIGN_CENTRE;
     m_rowLabelVertAlign  = wxALIGN_CENTRE;
 
     m_colLabelHorizAlign = wxALIGN_CENTRE;
-    m_colLabelVertAlign  = wxALIGN_TOP;
+    m_colLabelVertAlign  = wxALIGN_CENTRE;
+    m_colLabelTextOrientation = wxHORIZONTAL;
 
     m_defaultColWidth  = WXGRID_DEFAULT_COL_WIDTH;
     m_defaultRowHeight = m_gridWin->GetCharHeight();
 
+    m_minAcceptableColWidth  = WXGRID_MIN_COL_WIDTH;
+    m_minAcceptableRowHeight = WXGRID_MIN_ROW_HEIGHT;
+
 #if defined(__WXMOTIF__) || defined(__WXGTK__)  // see also text ctrl sizing in ShowCellEditControl()
     m_defaultRowHeight += 8;
 #else
     m_defaultRowHeight += 4;
 #endif
 
-    m_gridLineColour = wxColour( 128, 128, 255 );
-    m_gridLinesEnabled = TRUE;
-    m_cellHighlightColour = m_gridLineColour;
+    m_gridLineColour = wxColour( 192,192,192 );
+    m_gridLinesEnabled = true;
+    m_cellHighlightColour = *wxBLACK;
     m_cellHighlightPenWidth = 2;
     m_cellHighlightROPenWidth = 1;
 
+    m_canDragColMove = false;
+
     m_cursorMode  = WXGRID_CURSOR_SELECT_CELL;
     m_winCapture = (wxWindow *)NULL;
-    m_canDragRowSize = TRUE;
-    m_canDragColSize = TRUE;
-    m_canDragGridSize = TRUE;
+    m_canDragRowSize = true;
+    m_canDragColSize = true;
+    m_canDragGridSize = true;
+    m_canDragCell = false;
     m_dragLastPos  = -1;
     m_dragRowOrCol = -1;
-    m_isDragging = FALSE;
+    m_isDragging = false;
     m_startDragPos = wxDefaultPosition;
 
-    m_waitForSlowClick = FALSE;
+    m_waitForSlowClick = false;
 
     m_rowResizeCursor = wxCursor( wxCURSOR_SIZENS );
     m_colResizeCursor = wxCursor( wxCURSOR_SIZEWE );
@@ -3748,13 +4423,16 @@ void wxGrid::Init()
     m_selectionBackground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
     m_selectionForeground = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
 
-    m_editable = TRUE;  // default for whole grid
+    m_editable = true;  // default for whole grid
 
-    m_inOnKeyDown = FALSE;
+    m_inOnKeyDown = false;
     m_batchCount = 0;
 
     m_extraWidth =
     m_extraHeight = 0;
+
+    m_scrollLineX = GRID_SCROLL_LINE_X;
+    m_scrollLineY = GRID_SCROLL_LINE_Y;
 }
 
 // ----------------------------------------------------------------------------
@@ -3776,9 +4454,11 @@ void wxGrid::InitRowHeights()
     m_rowBottoms.Alloc( m_numRows );
 
     int rowBottom = 0;
-    for ( int i = 0;  i < m_numRows;  i++ )
+
+    m_rowHeights.Add( m_defaultRowHeight, m_numRows );
+
+    for ( int i = 0; i < m_numRows; i++ )
     {
-        m_rowHeights.Add( m_defaultRowHeight );
         rowBottom += m_defaultRowHeight;
         m_rowBottoms.Add( rowBottom );
     }
@@ -3792,10 +4472,12 @@ void wxGrid::InitColWidths()
     m_colWidths.Alloc( m_numCols );
     m_colRights.Alloc( m_numCols );
     int colRight = 0;
-    for ( int i = 0;  i < m_numCols;  i++ )
+
+    m_colWidths.Add( m_defaultColWidth, m_numCols );
+
+    for ( int i = 0; i < m_numCols; i++ )
     {
-        m_colWidths.Add( m_defaultColWidth );
-        colRight += m_defaultColWidth;
+        colRight = ( GetColPos( i ) + 1 ) * m_defaultColWidth;
         m_colRights.Add( colRight );
     }
 }
@@ -3807,13 +4489,13 @@ int wxGrid::GetColWidth(int col) const
 
 int wxGrid::GetColLeft(int col) const
 {
-    return m_colRights.IsEmpty() ? col * m_defaultColWidth
+    return m_colRights.IsEmpty() ? GetColPos( col ) * m_defaultColWidth
                                  : m_colRights[col] - m_colWidths[col];
 }
 
 int wxGrid::GetColRight(int col) const
 {
-    return m_colRights.IsEmpty() ? (col + 1) * m_defaultColWidth
+    return m_colRights.IsEmpty() ? (GetColPos( col ) + 1) * m_defaultColWidth
                                  : m_colRights[col];
 }
 
@@ -3845,38 +4527,44 @@ void wxGrid::CalcDimensions()
         ch -= m_colLabelHeight;
 
     // grid total size
-    int w = m_numCols > 0 ? GetColRight(m_numCols - 1) + m_extraWidth + 1 : 0;
+    int w = m_numCols > 0 ? GetColRight(GetColAt( m_numCols - 1 )) + m_extraWidth + 1 : 0;
     int h = m_numRows > 0 ? GetRowBottom(m_numRows - 1) + m_extraHeight + 1 : 0;
 
+    // take into account editor if shown
+    if ( IsCellEditControlShown() )
+    {
+        int w2, h2;
+        int r = m_currentCellCoords.GetRow();
+        int c = m_currentCellCoords.GetCol();
+        int x = GetColLeft(c);
+        int y = GetRowTop(r);
+
+        // how big is the editor
+        wxGridCellAttr* attr = GetCellAttr(r, c);
+        wxGridCellEditor* editor = attr->GetEditor(this, r, c);
+        editor->GetControl()->GetSize(&w2, &h2);
+        w2 += x;
+        h2 += y;
+        if ( w2 > w )
+            w = w2;
+        if ( h2 > h )
+            h = h2;
+        editor->DecRef();
+        attr->DecRef();
+    }
+
     // preserve (more or less) the previous position
     int x, y;
     GetViewStart( &x, &y );
 
-    // maybe we don't need scrollbars at all?
-    //
-    // also adjust the position to be valid for the new scroll rangs
-    if ( w <= cw )
-    {
-        w = x = 0;
-    }
-    else
-    {
-        if ( x >= w )
-            x = w - 1;
-    }
-
-    if ( h <= ch )
-    {
-        h = y = 0;
-    }
-    else
-    {
-        if ( y >= h )
-            y = h - 1;
-    }
+    // ensure the position is valid for the new scroll ranges
+    if ( x >= w )
+        x = wxMax( w - 1, 0 );
+    if ( y >= h )
+        y = wxMax( h - 1, 0 );
 
     // do set scrollbar parameters
-    SetScrollbars( GRID_SCROLL_LINE_X, GRID_SCROLL_LINE_Y,
+    SetScrollbars( m_scrollLineX, m_scrollLineY,
                    GetScrollX(w), GetScrollY(h), x, y,
                    GetBatchCount() != 0);
 
@@ -3885,33 +4573,47 @@ void wxGrid::CalcDimensions()
     CalcWindowSizes();
 }
 
-
 void wxGrid::CalcWindowSizes()
 {
+    // escape if the window is has not been fully created yet
+
+    if ( m_cornerLabelWin == NULL )
+        return;
+
     int cw, ch;
     GetClientSize( &cw, &ch );
 
-    if ( m_cornerLabelWin->IsShown() )
+    if ( m_cornerLabelWin && m_cornerLabelWin->IsShown() )
         m_cornerLabelWin->SetSize( 0, 0, m_rowLabelWidth, m_colLabelHeight );
 
-    if ( m_colLabelWin->IsShown() )
-        m_colLabelWin->SetSize( m_rowLabelWidth, 0, cw-m_rowLabelWidth, m_colLabelHeight);
+    if ( m_colLabelWin && m_colLabelWin->IsShown() )
+        m_colLabelWin->SetSize( m_rowLabelWidth, 0, cw - m_rowLabelWidth, m_colLabelHeight );
 
-    if ( m_rowLabelWin->IsShown() )
-        m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, ch-m_colLabelHeight);
+    if ( m_rowLabelWin && m_rowLabelWin->IsShown() )
+        m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, ch - m_colLabelHeight );
 
-    if ( m_gridWin->IsShown() )
-        m_gridWin->SetSize( m_rowLabelWidth, m_colLabelHeight, cw-m_rowLabelWidth, ch-m_colLabelHeight);
+    if ( m_gridWin && m_gridWin->IsShown() )
+        m_gridWin->SetSize( m_rowLabelWidth, m_colLabelHeight, cw - m_rowLabelWidth, ch - m_colLabelHeight );
 }
 
-
-// this is called when the grid table sends a message to say that it
-// has been redimensioned
+// this is called when the grid table sends a message
+// to indicate that it has been redimensioned
 //
 bool wxGrid::Redimension( wxGridTableMessage& msg )
 {
     int i;
-    bool result = FALSE;
+    bool result = false;
+
+    // Clear the attribute cache as the attribute might refer to a different
+    // cell than stored in the cache after adding/removing rows/columns.
+    ClearAttrCache();
+
+    // By the same reasoning, the editor should be dismissed if columns are
+    // added or removed. And for consistency, it should IMHO always be
+    // removed, not only if the cell "underneath" it actually changes.
+    // For now, I intentionally do not save the editor's content as the
+    // cell it might want to save that stuff to might no longer exist.
+    HideCellEditControl();
 
 #if 0
     // if we were using the default widths/heights so far, we must change them
@@ -3938,21 +4640,20 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
 
             if ( !m_rowHeights.IsEmpty() )
             {
-                for ( i = 0;  i < numRows;  i++ )
-                {
-                    m_rowHeights.Insert( m_defaultRowHeight, pos );
-                    m_rowBottoms.Insert( 0, pos );
-                }
+                m_rowHeights.Insert( m_defaultRowHeight, pos, numRows );
+                m_rowBottoms.Insert( 0, pos, numRows );
 
                 int bottom = 0;
-                if ( pos > 0 ) bottom = m_rowBottoms[pos-1];
+                if ( pos > 0 )
+                    bottom = m_rowBottoms[pos - 1];
 
-                for ( i = pos;  i < m_numRows;  i++ )
+                for ( i = pos; i < m_numRows; i++ )
                 {
                     bottom += m_rowHeights[i];
                     m_rowBottoms[i] = bottom;
                 }
             }
+
             if ( m_currentCellCoords == wxGridNoCellCoords )
             {
                 // if we have just inserted cols into an empty grid the current
@@ -3960,7 +4661,9 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 //
                 SetCurrentCell( 0, 0 );
             }
-            m_selection->UpdateRows( pos, numRows );
+
+            if ( m_selection )
+                m_selection->UpdateRows( pos, numRows );
             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
             if (attrProvider)
                 attrProvider->UpdateAttrRows( pos, numRows );
@@ -3971,7 +4674,7 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 m_rowLabelWin->Refresh();
             }
         }
-        result = TRUE;
+        result = true;
         break;
 
         case wxGRIDTABLE_NOTIFY_ROWS_APPENDED:
@@ -3982,21 +4685,20 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
 
             if ( !m_rowHeights.IsEmpty() )
             {
-                for ( i = 0;  i < numRows;  i++ )
-                {
-                    m_rowHeights.Add( m_defaultRowHeight );
-                    m_rowBottoms.Add( 0 );
-                }
+                m_rowHeights.Add( m_defaultRowHeight, numRows );
+                m_rowBottoms.Add( 0, numRows );
 
                 int bottom = 0;
-                if ( oldNumRows > 0 ) bottom = m_rowBottoms[oldNumRows-1];
+                if ( oldNumRows > 0 )
+                    bottom = m_rowBottoms[oldNumRows - 1];
 
-                for ( i = oldNumRows;  i < m_numRows;  i++ )
+                for ( i = oldNumRows; i < m_numRows; i++ )
                 {
                     bottom += m_rowHeights[i];
                     m_rowBottoms[i] = bottom;
                 }
             }
+
             if ( m_currentCellCoords == wxGridNoCellCoords )
             {
                 // if we have just inserted cols into an empty grid the current
@@ -4004,13 +4706,14 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 //
                 SetCurrentCell( 0, 0 );
             }
+
             if ( !GetBatchCount() )
             {
                 CalcDimensions();
                 m_rowLabelWin->Refresh();
             }
         }
-        result = TRUE;
+        result = true;
         break;
 
         case wxGRIDTABLE_NOTIFY_ROWS_DELETED:
@@ -4021,19 +4724,17 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
 
             if ( !m_rowHeights.IsEmpty() )
             {
-                for ( i = 0;  i < numRows;  i++ )
-                {
-                    m_rowHeights.RemoveAt( pos );
-                    m_rowBottoms.RemoveAt( pos );
-                }
+                m_rowHeights.RemoveAt( pos, numRows );
+                m_rowBottoms.RemoveAt( pos, numRows );
 
                 int h = 0;
-                for ( i = 0;  i < m_numRows;  i++ )
+                for ( i = 0; i < m_numRows; i++ )
                 {
                     h += m_rowHeights[i];
                     m_rowBottoms[i] = h;
                 }
             }
+
             if ( !m_numRows )
             {
                 m_currentCellCoords = wxGridNoCellCoords;
@@ -4043,10 +4744,14 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 if ( m_currentCellCoords.GetRow() >= m_numRows )
                     m_currentCellCoords.Set( 0, 0 );
             }
-            m_selection->UpdateRows( pos, -((int)numRows) );
+
+            if ( m_selection )
+                m_selection->UpdateRows( pos, -((int)numRows) );
             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
-            if (attrProvider) {
+            if (attrProvider)
+            {
                 attrProvider->UpdateAttrRows( pos, -((int)numRows) );
+
 // ifdef'd out following patch from Paul Gammans
 #if 0
                 // No need to touch column attributes, unless we
@@ -4058,13 +4763,14 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                     attrProvider->UpdateAttrCols( 0, -GetNumberCols() );
 #endif
             }
+
             if ( !GetBatchCount() )
             {
                 CalcDimensions();
                 m_rowLabelWin->Refresh();
             }
         }
-        result = TRUE;
+        result = true;
         break;
 
         case wxGRIDTABLE_NOTIFY_COLS_INSERTED:
@@ -4073,23 +4779,44 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt2();
             m_numCols += numCols;
 
-            if ( !m_colWidths.IsEmpty() )
+            if ( !m_colAt.IsEmpty() )
             {
-                for ( i = 0;  i < numCols;  i++ )
+                //Shift the column IDs
+                int i;
+                for ( i = 0; i < m_numCols - numCols; i++ )
+                {
+                    if ( m_colAt[i] >= (int)pos )
+                        m_colAt[i] += numCols;
+                }
+
+                m_colAt.Insert( pos, pos, numCols );
+
+                //Set the new columns' positions
+                for ( i = pos + 1; i < (int)pos + numCols; i++ )
                 {
-                    m_colWidths.Insert( m_defaultColWidth, pos );
-                    m_colRights.Insert( 0, pos );
+                    m_colAt[i] = i;
                 }
+            }
+
+            if ( !m_colWidths.IsEmpty() )
+            {
+                m_colWidths.Insert( m_defaultColWidth, pos, numCols );
+                m_colRights.Insert( 0, pos, numCols );
 
                 int right = 0;
-                if ( pos > 0 ) right = m_colRights[pos-1];
+                if ( pos > 0 )
+                    right = m_colRights[GetColAt( pos - 1 )];
 
-                for ( i = pos;  i < m_numCols;  i++ )
+                int colPos;
+                for ( colPos = pos; colPos < m_numCols; colPos++ )
                 {
+                    i = GetColAt( colPos );
+
                     right += m_colWidths[i];
                     m_colRights[i] = right;
                 }
             }
+
             if ( m_currentCellCoords == wxGridNoCellCoords )
             {
                 // if we have just inserted cols into an empty grid the current
@@ -4097,7 +4824,9 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 //
                 SetCurrentCell( 0, 0 );
             }
-            m_selection->UpdateCols( pos, numCols );
+
+            if ( m_selection )
+                m_selection->UpdateCols( pos, numCols );
             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
             if (attrProvider)
                 attrProvider->UpdateAttrCols( pos, numCols );
@@ -4106,9 +4835,8 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 CalcDimensions();
                 m_colLabelWin->Refresh();
             }
-
         }
-        result = TRUE;
+        result = true;
         break;
 
         case wxGRIDTABLE_NOTIFY_COLS_APPENDED:
@@ -4116,23 +4844,38 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt();
             int oldNumCols = m_numCols;
             m_numCols += numCols;
-            if ( !m_colWidths.IsEmpty() )
+
+            if ( !m_colAt.IsEmpty() )
             {
-                for ( i = 0;  i < numCols;  i++ )
+                m_colAt.Add( 0, numCols );
+
+                //Set the new columns' positions
+                int i;
+                for ( i = oldNumCols; i < m_numCols; i++ )
                 {
-                    m_colWidths.Add( m_defaultColWidth );
-                    m_colRights.Add( 0 );
+                    m_colAt[i] = i;
                 }
+            }
+
+            if ( !m_colWidths.IsEmpty() )
+            {
+                m_colWidths.Add( m_defaultColWidth, numCols );
+                m_colRights.Add( 0, numCols );
 
                 int right = 0;
-                if ( oldNumCols > 0 ) right = m_colRights[oldNumCols-1];
+                if ( oldNumCols > 0 )
+                    right = m_colRights[GetColAt( oldNumCols - 1 )];
 
-                for ( i = oldNumCols;  i < m_numCols;  i++ )
+                int colPos;
+                for ( colPos = oldNumCols; colPos < m_numCols; colPos++ )
                 {
+                    i = GetColAt( colPos );
+
                     right += m_colWidths[i];
                     m_colRights[i] = right;
                 }
             }
+
             if ( m_currentCellCoords == wxGridNoCellCoords )
             {
                 // if we have just inserted cols into an empty grid the current
@@ -4146,7 +4889,7 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 m_colLabelWin->Refresh();
             }
         }
-        result = TRUE;
+        result = true;
         break;
 
         case wxGRIDTABLE_NOTIFY_COLS_DELETED:
@@ -4155,21 +4898,37 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt2();
             m_numCols -= numCols;
 
-            if ( !m_colWidths.IsEmpty() )
+            if ( !m_colAt.IsEmpty() )
             {
-                for ( i = 0;  i < numCols;  i++ )
+                int colID = GetColAt( pos );
+
+                m_colAt.RemoveAt( pos, numCols );
+
+                //Shift the column IDs
+                int colPos;
+                for ( colPos = 0; colPos < m_numCols; colPos++ )
                 {
-                    m_colWidths.RemoveAt( pos );
-                    m_colRights.RemoveAt( pos );
+                    if ( m_colAt[colPos] > colID )
+                        m_colAt[colPos] -= numCols;
                 }
+            }
+
+            if ( !m_colWidths.IsEmpty() )
+            {
+                m_colWidths.RemoveAt( pos, numCols );
+                m_colRights.RemoveAt( pos, numCols );
 
                 int w = 0;
-                for ( i = 0;  i < m_numCols;  i++ )
+                int colPos;
+                for ( colPos = 0; colPos < m_numCols; colPos++ )
                 {
+                    i = GetColAt( colPos );
+
                     w += m_colWidths[i];
                     m_colRights[i] = w;
                 }
             }
+
             if ( !m_numCols )
             {
                 m_currentCellCoords = wxGridNoCellCoords;
@@ -4179,10 +4938,14 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 if ( m_currentCellCoords.GetCol() >= m_numCols )
                   m_currentCellCoords.Set( 0, 0 );
             }
-            m_selection->UpdateCols( pos, -((int)numCols) );
+
+            if ( m_selection )
+                m_selection->UpdateCols( pos, -((int)numCols) );
             wxGridCellAttrProvider * attrProvider = m_table->GetAttrProvider();
-            if (attrProvider) {
+            if (attrProvider)
+            {
                 attrProvider->UpdateAttrCols( pos, -((int)numCols) );
+
 // ifdef'd out following patch from Paul Gammans
 #if 0
                 // No need to touch row attributes, unless we
@@ -4194,22 +4957,23 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                     attrProvider->UpdateAttrRows( 0, -GetNumberRows() );
 #endif
             }
+
             if ( !GetBatchCount() )
             {
                 CalcDimensions();
                 m_colLabelWin->Refresh();
             }
         }
-        result = TRUE;
+        result = true;
         break;
     }
 
     if (result && !GetBatchCount() )
         m_gridWin->Refresh();
+
     return result;
 }
 
-
 wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg )
 {
     wxRegionIterator iter( reg );
@@ -4230,7 +4994,8 @@ wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg )
 #if defined(__WXMOTIF__)
         int cw, ch;
         m_gridWin->GetClientSize( &cw, &ch );
-        if ( r.GetTop() > ch ) r.SetTop( 0 );
+        if ( r.GetTop() > ch )
+            r.SetTop( 0 );
         r.SetBottom( wxMin( r.GetBottom(), ch ) );
 #endif
 
@@ -4243,7 +5008,7 @@ wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg )
         // find the row labels within these bounds
         //
         int row;
-        for ( row = YToRow(top);  row < m_numRows;  row++ )
+        for ( row = internalYToRow(top); row < m_numRows; row++ )
         {
             if ( GetRowBottom(row) < top )
                 continue;
@@ -4254,13 +5019,12 @@ wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg )
             rowlabels.Add( row );
         }
 
-        iter++ ;
+        ++iter;
     }
 
     return rowlabels;
 }
 
-
 wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg )
 {
     wxRegionIterator iter( reg );
@@ -4281,7 +5045,8 @@ wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg )
 #if defined(__WXMOTIF__)
         int cw, ch;
         m_gridWin->GetClientSize( &cw, &ch );
-        if ( r.GetLeft() > cw ) r.SetLeft( 0 );
+        if ( r.GetLeft() > cw )
+            r.SetLeft( 0 );
         r.SetRight( wxMin( r.GetRight(), cw ) );
 #endif
 
@@ -4294,8 +5059,11 @@ wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg )
         // find the cells within these bounds
         //
         int col;
-        for ( col = XToCol(left);  col < m_numCols;  col++ )
+        int colPos;
+        for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
         {
+            col = GetColAt( colPos );
+
             if ( GetColRight(col) < left )
                 continue;
 
@@ -4305,12 +5073,12 @@ wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg )
             colLabels.Add( col );
         }
 
-        iter++ ;
+        ++iter;
     }
+
     return colLabels;
 }
 
-
 wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
 {
     wxRegionIterator iter( reg );
@@ -4345,7 +5113,7 @@ wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
         // find the cells within these bounds
         //
         int row, col;
-        for ( row = YToRow(top);  row < m_numRows;  row++ )
+        for ( row = internalYToRow(top); row < m_numRows; row++ )
         {
             if ( GetRowBottom(row) <= top )
                 continue;
@@ -4353,8 +5121,11 @@ wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
             if ( GetRowTop(row) > bottom )
                 break;
 
-            for ( col = XToCol(left);  col < m_numCols;  col++ )
+            int colPos;
+            for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
             {
+                col = GetColAt( colPos );
+
                 if ( GetColRight(col) <= left )
                     continue;
 
@@ -4365,7 +5136,7 @@ wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
             }
         }
 
-        iter++;
+        ++iter;
     }
 
     return cellsExposed;
@@ -4380,11 +5151,15 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
 
     if ( event.Dragging() )
     {
-        m_isDragging = TRUE;
+        if (!m_isDragging)
+        {
+            m_isDragging = true;
+            m_rowLabelWin->CaptureMouse();
+        }
 
         if ( event.LeftIsDown() )
         {
-            switch( m_cursorMode )
+            switch ( m_cursorMode )
             {
                 case WXGRID_CURSOR_RESIZE_ROW:
                 {
@@ -4408,14 +5183,20 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
                 break;
 
                 case WXGRID_CURSOR_SELECT_ROW:
+                {
                     if ( (row = YToRow( y )) >= 0 )
                     {
-                        m_selection->SelectRow( row,
-                                                event.ControlDown(),
-                                                event.ShiftDown(),
-                                                event.AltDown(),
-                                                event.MetaDown() );
+                        if ( m_selection )
+                        {
+                            m_selection->SelectRow( row,
+                                                    event.ControlDown(),
+                                                    event.ShiftDown(),
+                                                    event.AltDown(),
+                                                    event.MetaDown() );
+                        }
                     }
+                }
+                break;
 
                 // default label to suppress warnings about "enumeration value
                 // 'xxx' not handled in switch
@@ -4426,8 +5207,15 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
         return;
     }
 
-    m_isDragging = FALSE;
+    if ( m_isDragging && (event.Entering() || event.Leaving()) )
+        return;
 
+    if (m_isDragging)
+    {
+        if (m_rowLabelWin->HasCapture())
+            m_rowLabelWin->ReleaseMouse();
+        m_isDragging = false;
+    }
 
     // ------------ Entering or leaving the window
     //
@@ -4436,7 +5224,6 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin);
     }
 
-
     // ------------ Left button pressed
     //
     else if ( event.LeftDown() )
@@ -4448,50 +5235,68 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
         if ( YToEdgeOfRow(y) < 0 )
         {
             row = YToRow(y);
-            if ( row >= 0  &&
+            if ( row >= 0 &&
                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, row, -1, event ) )
             {
-                if ( !event.ShiftDown() && !event.ControlDown() )
+                if ( !event.ShiftDown() && !event.CmdDown() )
                     ClearSelection();
-                if ( event.ShiftDown() )
-                    m_selection->SelectBlock( m_currentCellCoords.GetRow(),
-                                              0,
-                                              row,
-                                              GetNumberCols() - 1,
-                                              event.ControlDown(),
-                                              event.ShiftDown(),
-                                              event.AltDown(),
-                                              event.MetaDown() );
-                else
-                    m_selection->SelectRow( row,
-                                            event.ControlDown(),
-                                            event.ShiftDown(),
-                                            event.AltDown(),
-                                            event.MetaDown() );
+                if ( m_selection )
+                {
+                    if ( event.ShiftDown() )
+                    {
+                        m_selection->SelectBlock( m_currentCellCoords.GetRow(),
+                                                  0,
+                                                  row,
+                                                  GetNumberCols() - 1,
+                                                  event.ControlDown(),
+                                                  event.ShiftDown(),
+                                                  event.AltDown(),
+                                                  event.MetaDown() );
+                    }
+                    else
+                    {
+                        m_selection->SelectRow( row,
+                                                event.ControlDown(),
+                                                event.ShiftDown(),
+                                                event.AltDown(),
+                                                event.MetaDown() );
+                    }
+                }
+
                 ChangeCursorMode(WXGRID_CURSOR_SELECT_ROW, m_rowLabelWin);
             }
         }
         else
         {
             // starting to drag-resize a row
-            //
             if ( CanDragRowSize() )
                 ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin);
         }
     }
 
-
     // ------------ Left double click
     //
     else if (event.LeftDClick() )
     {
-        if ( YToEdgeOfRow(y) < 0 )
+        row = YToEdgeOfRow(y);
+        if ( row < 0 )
         {
             row = YToRow(y);
-            SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, row, -1, event );
+            if ( row >=0 &&
+                 !SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, row, -1, event ) )
+            {
+                // no default action at the moment
+            }
         }
-    }
+        else
+        {
+            // adjust row height depending on label text
+            AutoSizeRowLabelSize( row );
 
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin);
+            m_dragLastPos = -1;
+        }
+    }
 
     // ------------ Left button released
     //
@@ -4511,31 +5316,30 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
         m_dragLastPos = -1;
     }
 
-
     // ------------ Right button down
     //
     else if ( event.RightDown() )
     {
         row = YToRow(y);
-        if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, row, -1, event ) )
+        if ( row >=0 &&
+             !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, row, -1, event ) )
         {
             // no default action at the moment
         }
     }
 
-
     // ------------ Right double click
     //
     else if ( event.RightDClick() )
     {
         row = YToRow(y);
-        if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, row, -1, event ) )
+        if ( row >= 0 &&
+             !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, row, -1, event ) )
         {
             // no default action at the moment
         }
     }
 
-
     // ------------ No buttons down and mouse moving
     //
     else if ( event.Moving() )
@@ -4547,17 +5351,16 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
             {
                 // don't capture the mouse yet
                 if ( CanDragRowSize() )
-                    ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin, FALSE);
+                    ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW, m_rowLabelWin, false);
             }
         }
         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
         {
-            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin, FALSE);
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_rowLabelWin, false);
         }
     }
 }
 
-
 void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
 {
     int x, y, col;
@@ -4566,11 +5369,18 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
 
     if ( event.Dragging() )
     {
-        m_isDragging = TRUE;
+        if (!m_isDragging)
+        {
+            m_isDragging = true;
+            m_colLabelWin->CaptureMouse();
+
+            if ( m_cursorMode == WXGRID_CURSOR_MOVE_COL )
+                m_dragRowOrCol = XToCol( x );
+        }
 
         if ( event.LeftIsDown() )
         {
-            switch( m_cursorMode )
+            switch ( m_cursorMode )
             {
                 case WXGRID_CURSOR_RESIZE_COL:
                 {
@@ -4586,22 +5396,85 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
                     dc.SetLogicalFunction(wxINVERT);
                     if ( m_dragLastPos >= 0 )
                     {
-                        dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch );
+                        dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top + ch );
                     }
-                    dc.DrawLine( x, top, x, top+ch );
+                    dc.DrawLine( x, top, x, top + ch );
                     m_dragLastPos = x;
                 }
                 break;
 
                 case WXGRID_CURSOR_SELECT_COL:
+                {
                     if ( (col = XToCol( x )) >= 0 )
                     {
-                        m_selection->SelectCol( col,
-                                                event.ControlDown(),
-                                                event.ShiftDown(),
-                                                event.AltDown(),
-                                                event.MetaDown() );
+                        if ( m_selection )
+                        {
+                            m_selection->SelectCol( col,
+                                                    event.ControlDown(),
+                                                    event.ShiftDown(),
+                                                    event.AltDown(),
+                                                    event.MetaDown() );
+                        }
+                    }
+                }
+                break;
+
+                case WXGRID_CURSOR_MOVE_COL:
+                {
+                    if ( x < 0 )
+                        m_moveToCol = GetColAt( 0 );
+                    else
+                        m_moveToCol = XToCol( x );
+
+                    int markerX;
+
+                    if ( m_moveToCol < 0 )
+                        markerX = GetColRight( GetColAt( m_numCols - 1 ) );
+                    else
+                        markerX = GetColLeft( m_moveToCol );
+
+                    if ( markerX != m_dragLastPos )
+                    {
+                        wxClientDC dc( m_colLabelWin );
+
+                        int cw, ch;
+                        m_colLabelWin->GetClientSize( &cw, &ch );
+
+                        markerX++;
+
+                        //Clean up the last indicator
+                        if ( m_dragLastPos >= 0 )
+                        {
+                            wxPen pen( m_colLabelWin->GetBackgroundColour(), 2 );
+                            dc.SetPen(pen);
+                            dc.DrawLine( m_dragLastPos + 1, 0, m_dragLastPos + 1, ch );
+                            dc.SetPen(wxNullPen);
+
+                            if ( XToCol( m_dragLastPos ) != -1 )
+                                DrawColLabel( dc, XToCol( m_dragLastPos ) );
+                        }
+
+                        //Moving to the same place? Don't draw a marker
+                        if ( (m_moveToCol == m_dragRowOrCol)
+                          || (GetColPos( m_moveToCol ) == GetColPos( m_dragRowOrCol ) + 1)
+                          || (m_moveToCol < 0 && m_dragRowOrCol == GetColAt( m_numCols - 1 )))
+                        {
+                            m_dragLastPos = -1;
+                            return;
+                        }
+
+                        //Draw the marker
+                        wxPen pen( *wxBLUE, 2 );
+                        dc.SetPen(pen);
+
+                        dc.DrawLine( markerX, 0, markerX, ch );
+
+                        dc.SetPen(wxNullPen);
+
+                        m_dragLastPos = markerX - 1;
                     }
+                }
+                break;
 
                 // default label to suppress warnings about "enumeration value
                 // 'xxx' not handled in switch
@@ -4612,8 +5485,15 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
         return;
     }
 
-    m_isDragging = FALSE;
+    if ( m_isDragging && (event.Entering() || event.Leaving()) )
+        return;
 
+    if (m_isDragging)
+    {
+        if (m_colLabelWin->HasCapture())
+            m_colLabelWin->ReleaseMouse();
+        m_isDragging = false;
+    }
 
     // ------------ Entering or leaving the window
     //
@@ -4622,7 +5502,6 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin);
     }
 
-
     // ------------ Left button pressed
     //
     else if ( event.LeftDown() )
@@ -4634,26 +5513,49 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
         if ( XToEdgeOfCol(x) < 0 )
         {
             col = XToCol(x);
-            if ( col >= 0  &&
+            if ( col >= 0 &&
                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, col, event ) )
             {
-                if ( !event.ShiftDown() && !event.ControlDown() )
-                    ClearSelection();
-                if ( event.ShiftDown() )
-                    m_selection->SelectBlock( 0,
-                                              m_currentCellCoords.GetCol(),
-                                              GetNumberRows() - 1, col,
-                                              event.ControlDown(),
-                                              event.ShiftDown(),
-                                              event.AltDown(),
-                                              event.MetaDown() );
+                if ( m_canDragColMove )
+                {
+                    //Show button as pressed
+                    wxClientDC dc( m_colLabelWin );
+                    int colLeft = GetColLeft( col );
+                    int colRight = GetColRight( col ) - 1;
+                    dc.SetPen( wxPen( m_colLabelWin->GetBackgroundColour(), 1 ) );
+                    dc.DrawLine( colLeft, 1, colLeft, m_colLabelHeight-1 );
+                    dc.DrawLine( colLeft, 1, colRight, 1 );
+
+                    ChangeCursorMode(WXGRID_CURSOR_MOVE_COL, m_colLabelWin);
+                }
                 else
-                    m_selection->SelectCol( col,
-                                            event.ControlDown(),
-                                            event.ShiftDown(),
-                                            event.AltDown(),
-                                            event.MetaDown() );
-                ChangeCursorMode(WXGRID_CURSOR_SELECT_COL, m_colLabelWin);
+                {
+                    if ( !event.ShiftDown() && !event.CmdDown() )
+                        ClearSelection();
+                    if ( m_selection )
+                    {
+                        if ( event.ShiftDown() )
+                        {
+                            m_selection->SelectBlock( 0,
+                                                      m_currentCellCoords.GetCol(),
+                                                      GetNumberRows() - 1, col,
+                                                      event.ControlDown(),
+                                                      event.ShiftDown(),
+                                                      event.AltDown(),
+                                                      event.MetaDown() );
+                        }
+                        else
+                        {
+                            m_selection->SelectCol( col,
+                                                    event.ControlDown(),
+                                                    event.ShiftDown(),
+                                                    event.AltDown(),
+                                                    event.MetaDown() );
+                        }
+                    }
+
+                    ChangeCursorMode(WXGRID_CURSOR_SELECT_COL, m_colLabelWin);
+                }
             }
         }
         else
@@ -4665,62 +5567,87 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
         }
     }
 
-
     // ------------ Left double click
     //
     if ( event.LeftDClick() )
     {
-        if ( XToEdgeOfCol(x) < 0 )
+        col = XToEdgeOfCol(x);
+        if ( col < 0 )
         {
             col = XToCol(x);
-            SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, col, event );
+            if ( col >= 0 &&
+                 ! SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, col, event ) )
+            {
+                // no default action at the moment
+            }
         }
-    }
+        else
+        {
+            // adjust column width depending on label text
+            AutoSizeColLabelSize( col );
 
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin);
+            m_dragLastPos = -1;
+        }
+    }
 
     // ------------ Left button released
     //
     else if ( event.LeftUp() )
     {
-        if ( m_cursorMode == WXGRID_CURSOR_RESIZE_COL )
+        switch ( m_cursorMode )
         {
-            DoEndDragResizeCol();
+            case WXGRID_CURSOR_RESIZE_COL:
+                DoEndDragResizeCol();
 
-            // Note: we are ending the event *after* doing
-            // default processing in this case
-            //
-            SendEvent( wxEVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event );
+                // Note: we are ending the event *after* doing
+                // default processing in this case
+                //
+                SendEvent( wxEVT_GRID_COL_SIZE, -1, m_dragRowOrCol, event );
+                break;
+
+            case WXGRID_CURSOR_MOVE_COL:
+                DoEndDragMoveCol();
+
+                SendEvent( wxEVT_GRID_COL_MOVE, -1, m_dragRowOrCol, event );
+                break;
+
+            case WXGRID_CURSOR_SELECT_COL:
+            case WXGRID_CURSOR_SELECT_CELL:
+            case WXGRID_CURSOR_RESIZE_ROW:
+            case WXGRID_CURSOR_SELECT_ROW:
+                // nothing to do (?)
+                break;
         }
 
         ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin);
-        m_dragLastPos  = -1;
+        m_dragLastPos = -1;
     }
 
-
     // ------------ Right button down
     //
     else if ( event.RightDown() )
     {
         col = XToCol(x);
-        if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, col, event ) )
+        if ( col >= 0 &&
+             !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, col, event ) )
         {
             // no default action at the moment
         }
     }
 
-
     // ------------ Right double click
     //
     else if ( event.RightDClick() )
     {
         col = XToCol(x);
-        if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, col, event ) )
+        if ( col >= 0 &&
+             !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, col, event ) )
         {
             // no default action at the moment
         }
     }
 
-
     // ------------ No buttons down and mouse moving
     //
     else if ( event.Moving() )
@@ -4732,17 +5659,16 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
             {
                 // don't capture the cursor yet
                 if ( CanDragColSize() )
-                    ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, m_colLabelWin, FALSE);
+                    ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL, m_colLabelWin, false);
             }
         }
         else if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
         {
-            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin, FALSE);
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, m_colLabelWin, false);
         }
     }
 }
 
-
 void wxGrid::ProcessCornerLabelMouseEvent( wxMouseEvent& event )
 {
     if ( event.LeftDown() )
@@ -4755,12 +5681,10 @@ void wxGrid::ProcessCornerLabelMouseEvent( wxMouseEvent& event )
             SelectAll();
         }
     }
-
     else if ( event.LeftDClick() )
     {
         SendEvent( wxEVT_GRID_LABEL_LEFT_DCLICK, -1, -1, event );
     }
-
     else if ( event.RightDown() )
     {
         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_CLICK, -1, -1, event ) )
@@ -4768,7 +5692,6 @@ void wxGrid::ProcessCornerLabelMouseEvent( wxMouseEvent& event )
             // no default action at the moment
         }
     }
-
     else if ( event.RightDClick() )
     {
         if ( !SendEvent( wxEVT_GRID_LABEL_RIGHT_DCLICK, -1, -1, event ) )
@@ -4789,7 +5712,8 @@ void wxGrid::ChangeCursorMode(CursorMode mode,
         _T("RESIZE_ROW"),
         _T("RESIZE_COL"),
         _T("SELECT_ROW"),
-        _T("SELECT_COL")
+        _T("SELECT_COL"),
+        _T("MOVE_COL"),
     };
 
     wxLogTrace(_T("grid"),
@@ -4798,7 +5722,7 @@ void wxGrid::ChangeCursorMode(CursorMode mode,
                                     : win ? _T("rowLabelWin")
                                           : _T("gridWin"),
                cursorModes[m_cursorMode], cursorModes[mode]);
-#endif // __WXDEBUG__
+#endif
 
     if ( mode == m_cursorMode &&
          win == m_winCapture &&
@@ -4813,7 +5737,8 @@ void wxGrid::ChangeCursorMode(CursorMode mode,
 
     if ( m_winCapture )
     {
-        m_winCapture->ReleaseMouse();
+        if (m_winCapture->HasCapture())
+            m_winCapture->ReleaseMouse();
         m_winCapture = (wxWindow *)NULL;
     }
 
@@ -4829,8 +5754,13 @@ void wxGrid::ChangeCursorMode(CursorMode mode,
             win->SetCursor( m_colResizeCursor );
             break;
 
+        case WXGRID_CURSOR_MOVE_COL:
+            win->SetCursor( wxCursor(wxCURSOR_HAND) );
+            break;
+
         default:
             win->SetCursor( *wxSTANDARD_CURSOR );
+            break;
     }
 
     // we need to capture mouse when resizing
@@ -4853,11 +5783,20 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
     wxGridCellCoords coords;
     XYToCell( x, y, coords );
 
+    int cell_rows, cell_cols;
+    bool isFirstDrag = !m_isDragging;
+    GetCellSize( coords.GetRow(), coords.GetCol(), &cell_rows, &cell_cols );
+    if ((cell_rows < 0) || (cell_cols < 0))
+    {
+        coords.SetRow(coords.GetRow() + cell_rows);
+        coords.SetCol(coords.GetCol() + cell_cols);
+    }
+
     if ( event.Dragging() )
     {
         //wxLogDebug("pos(%d, %d) coords(%d, %d)", pos.x, pos.y, coords.GetRow(), coords.GetCol());
 
-        // Don't start doing anything until the mouse has been drug at
+        // Don't start doing anything until the mouse has been dragged at
         // least 3 pixels in any direction...
         if (! m_isDragging)
         {
@@ -4870,11 +5809,11 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                 return;
         }
 
-        m_isDragging = TRUE;
+        m_isDragging = true;
         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
         {
             // Hide the edit control, so it
-            // won't interfer with drag-shrinking.
+            // won't interfere with drag-shrinking.
             if ( IsCellEditControlShown() )
             {
                 HideCellEditControl();
@@ -4890,11 +5829,24 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
 
             if ( coords != wxGridNoCellCoords )
             {
-                if ( event.ControlDown() )
+                if ( event.CmdDown() )
                 {
                     if ( m_selectingKeyboard == wxGridNoCellCoords)
                         m_selectingKeyboard = coords;
-                    HighlightBlock ( m_selectingKeyboard, coords );
+                    HighlightBlock( m_selectingKeyboard, coords );
+                }
+                else if ( CanDragCell() )
+                {
+                    if ( isFirstDrag )
+                    {
+                        if ( m_selectingKeyboard == wxGridNoCellCoords)
+                            m_selectingKeyboard = coords;
+
+                        SendEvent( wxEVT_GRID_CELL_BEGIN_DRAG,
+                                   coords.GetRow(),
+                                   coords.GetCol(),
+                                   event );
+                    }
                 }
                 else
                 {
@@ -4947,16 +5899,16 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
             dc.SetLogicalFunction(wxINVERT);
             if ( m_dragLastPos >= 0 )
             {
-                dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch );
+                dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top + ch );
             }
-            dc.DrawLine( x, top, x, top+ch );
+            dc.DrawLine( x, top, x, top + ch );
             m_dragLastPos = x;
         }
 
         return;
     }
 
-    m_isDragging = FALSE;
+    m_isDragging = false;
     m_startDragPos = wxDefaultPosition;
 
     // VZ: if we do this, the mode is reset to WXGRID_CURSOR_SELECT_CELL
@@ -4980,46 +5932,31 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                        coords.GetCol(),
                        event ) )
         {
-            if ( !event.ControlDown() )
+            if ( !event.CmdDown() )
                 ClearSelection();
             if ( event.ShiftDown() )
             {
-                m_selection->SelectBlock( m_currentCellCoords.GetRow(),
-                                          m_currentCellCoords.GetCol(),
-                                          coords.GetRow(),
-                                          coords.GetCol(),
-                                          event.ControlDown(),
-                                          event.ShiftDown(),
-                                          event.AltDown(),
-                                          event.MetaDown() );
+                if ( m_selection )
+                {
+                    m_selection->SelectBlock( m_currentCellCoords.GetRow(),
+                                              m_currentCellCoords.GetCol(),
+                                              coords.GetRow(),
+                                              coords.GetCol(),
+                                              event.ControlDown(),
+                                              event.ShiftDown(),
+                                              event.AltDown(),
+                                              event.MetaDown() );
+                }
             }
-            else if ( XToEdgeOfCol(x) < 0  &&
+            else if ( XToEdgeOfCol(x) < 0 &&
                       YToEdgeOfRow(y) < 0 )
             {
                 DisableCellEditControl();
                 MakeCellVisible( coords );
 
-                // if this is the second click on this cell then start
-                // the edit control
-                if ( m_waitForSlowClick &&
-                     (coords == m_currentCellCoords) &&
-                     CanEnableCellControl())
-                {
-                    EnableCellEditControl();
-
-                    wxGridCellAttr* attr = GetCellAttr(m_currentCellCoords);
-                    wxGridCellEditor *editor = attr->GetEditor(this,
-                                                               coords.GetRow(),
-                                                               coords.GetCol());
-                    editor->StartingClick();
-                    editor->DecRef();
-                    attr->DecRef();
-
-                    m_waitForSlowClick = FALSE;
-                }
-                else
+                if ( event.CmdDown() )
                 {
-                    if ( event.ControlDown() )
+                    if ( m_selection )
                     {
                         m_selection->ToggleCellSelection( coords.GetRow(),
                                                           coords.GetCol(),
@@ -5027,69 +5964,96 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                                                           event.ShiftDown(),
                                                           event.AltDown(),
                                                           event.MetaDown() );
-                        m_selectingTopLeft = wxGridNoCellCoords;
-                        m_selectingBottomRight = wxGridNoCellCoords;
-                        m_selectingKeyboard = coords;
                     }
-                    else
+                    m_selectingTopLeft = wxGridNoCellCoords;
+                    m_selectingBottomRight = wxGridNoCellCoords;
+                    m_selectingKeyboard = coords;
+                }
+                else
+                {
+                    m_waitForSlowClick = m_currentCellCoords == coords && coords != wxGridNoCellCoords;
+                    SetCurrentCell( coords );
+                    if ( m_selection )
                     {
-                        SetCurrentCell( coords );
-                        if ( m_selection->GetSelectionMode()
-                             != wxGrid::wxGridSelectCells)
+                        if ( m_selection->GetSelectionMode() !=
+                                wxGrid::wxGridSelectCells )
+                        {
                             HighlightBlock( coords, coords );
+                        }
                     }
-                    m_waitForSlowClick = TRUE;
                 }
             }
         }
     }
 
-
     // ------------ Left double click
     //
     else if ( event.LeftDClick() && coords != wxGridNoCellCoords )
     {
         DisableCellEditControl();
 
-        if ( XToEdgeOfCol(x) < 0  &&  YToEdgeOfRow(y) < 0 )
+        if ( XToEdgeOfCol(x) < 0 && YToEdgeOfRow(y) < 0 )
         {
-            SendEvent( wxEVT_GRID_CELL_LEFT_DCLICK,
-                       coords.GetRow(),
-                       coords.GetCol(),
-                       event );
+            if ( !SendEvent( wxEVT_GRID_CELL_LEFT_DCLICK,
+                             coords.GetRow(),
+                             coords.GetCol(),
+                             event ) )
+            {
+                // we want double click to select a cell and start editing
+                // (i.e. to behave in same way as sequence of two slow clicks):
+                m_waitForSlowClick = true;
+            }
         }
     }
 
-
     // ------------ Left button released
     //
     else if ( event.LeftUp() )
     {
         if ( m_cursorMode == WXGRID_CURSOR_SELECT_CELL )
         {
-            if ( m_selectingTopLeft != wxGridNoCellCoords &&
+            if (m_winCapture)
+            {
+                if (m_winCapture->HasCapture())
+                    m_winCapture->ReleaseMouse();
+                m_winCapture = NULL;
+            }
+
+            if ( coords == m_currentCellCoords && m_waitForSlowClick && CanEnableCellControl() )
+            {
+                ClearSelection();
+                EnableCellEditControl();
+
+                wxGridCellAttr *attr = GetCellAttr(coords);
+                wxGridCellEditor *editor = attr->GetEditor(this, coords.GetRow(), coords.GetCol());
+                editor->StartingClick();
+                editor->DecRef();
+                attr->DecRef();
+
+                m_waitForSlowClick = false;
+            }
+            else if ( m_selectingTopLeft != wxGridNoCellCoords &&
                  m_selectingBottomRight != wxGridNoCellCoords )
             {
-                if (m_winCapture)
+                if ( m_selection )
                 {
-                    m_winCapture->ReleaseMouse();
-                    m_winCapture = NULL;
+                    m_selection->SelectBlock( m_selectingTopLeft.GetRow(),
+                                              m_selectingTopLeft.GetCol(),
+                                              m_selectingBottomRight.GetRow(),
+                                              m_selectingBottomRight.GetCol(),
+                                              event.ControlDown(),
+                                              event.ShiftDown(),
+                                              event.AltDown(),
+                                              event.MetaDown() );
                 }
-                m_selection->SelectBlock( m_selectingTopLeft.GetRow(),
-                                          m_selectingTopLeft.GetCol(),
-                                          m_selectingBottomRight.GetRow(),
-                                          m_selectingBottomRight.GetCol(),
-                                          event.ControlDown(),
-                                          event.ShiftDown(),
-                                          event.AltDown(),
-                                          event.MetaDown() );
+
                 m_selectingTopLeft = wxGridNoCellCoords;
                 m_selectingBottomRight = wxGridNoCellCoords;
-            }
 
-            // Show the edit control, if it has been hidden for
-            // drag-shrinking.
-            ShowCellEditControl();
+                // Show the edit control, if it has been hidden for
+                // drag-shrinking.
+                ShowCellEditControl();
+            }
         }
         else if ( m_cursorMode == WXGRID_CURSOR_RESIZE_ROW )
         {
@@ -5115,7 +6079,6 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
         m_dragLastPos = -1;
     }
 
-
     // ------------ Right button down
     //
     else if ( event.RightDown() && coords != wxGridNoCellCoords )
@@ -5130,7 +6093,6 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
         }
     }
 
-
     // ------------ Right double click
     //
     else if ( event.RightDClick() && coords != wxGridNoCellCoords )
@@ -5149,13 +6111,20 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
     //
     else if ( event.Moving() && !event.IsButton() )
     {
+        if ( coords.GetRow() < 0 || coords.GetCol() < 0 )
+        {
+            // out of grid cell area
+            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
+            return;
+        }
+
         int dragRow = YToEdgeOfRow( y );
         int dragCol = XToEdgeOfCol( x );
 
         // Dragging on the corner of a cell to resize in both
         // directions is not implemented yet...
         //
-        if ( dragRow >= 0  &&  dragCol >= 0 )
+        if ( dragRow >= 0 && dragCol >= 0 )
         {
             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
             return;
@@ -5170,16 +6139,8 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                 if ( CanDragRowSize() && CanDragGridSize() )
                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_ROW);
             }
-
-            if ( dragCol >= 0 )
-            {
-                m_dragRowOrCol = dragCol;
-            }
-
-            return;
         }
-
-        if ( dragCol >= 0 )
+        else if ( dragCol >= 0 )
         {
             m_dragRowOrCol = dragCol;
 
@@ -5188,20 +6149,17 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                 if ( CanDragColSize() && CanDragGridSize() )
                     ChangeCursorMode(WXGRID_CURSOR_RESIZE_COL);
             }
-
-            return;
         }
-
-        // Neither on a row or col edge
-        //
-        if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
+        else // Neither on a row or col edge
         {
-            ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
+            if ( m_cursorMode != WXGRID_CURSOR_SELECT_CELL )
+            {
+                ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
+            }
         }
     }
 }
 
-
 void wxGrid::DoEndDragResizeRow()
 {
     if ( m_dragLastPos >= 0 )
@@ -5215,13 +6173,13 @@ void wxGrid::DoEndDragResizeRow()
         wxClientDC dc( m_gridWin );
         PrepareDC( dc );
         dc.SetLogicalFunction( wxINVERT );
-        dc.DrawLine( left, m_dragLastPos, left+cw, m_dragLastPos );
+        dc.DrawLine( left, m_dragLastPos, left + cw, m_dragLastPos );
         HideCellEditControl();
         SaveEditControlValue();
 
         int rowTop = GetRowTop(m_dragRowOrCol);
         SetRowSize( m_dragRowOrCol,
-                    wxMax( m_dragLastPos - rowTop, WXGRID_MIN_ROW_HEIGHT ) );
+                    wxMax( m_dragLastPos - rowTop, m_minAcceptableRowHeight ) );
 
         if ( !GetBatchCount() )
         {
@@ -5231,9 +6189,29 @@ void wxGrid::DoEndDragResizeRow()
             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
             rect.width = m_rowLabelWidth;
             rect.height = ch - rect.y;
-            m_rowLabelWin->Refresh( TRUE, &rect );
+            m_rowLabelWin->Refresh( true, &rect );
             rect.width = cw;
-            m_gridWin->Refresh( FALSE, &rect );
+
+            // if there is a multicell block, paint all of it
+            if (m_table)
+            {
+                int i, cell_rows, cell_cols, subtract_rows = 0;
+                int leftCol = XToCol(left);
+                int rightCol = internalXToCol(left + cw);
+                if (leftCol >= 0)
+                {
+                    for (i=leftCol; i<rightCol; i++)
+                    {
+                        GetCellSize(m_dragRowOrCol, i, &cell_rows, &cell_cols);
+                        if (cell_rows < subtract_rows)
+                            subtract_rows = cell_rows;
+                    }
+                    rect.y = GetRowTop(m_dragRowOrCol + subtract_rows);
+                    CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
+                    rect.height = ch - rect.y;
+                }
+            }
+            m_gridWin->Refresh( false, &rect );
         }
 
         ShowCellEditControl();
@@ -5254,7 +6232,7 @@ void wxGrid::DoEndDragResizeCol()
         wxClientDC dc( m_gridWin );
         PrepareDC( dc );
         dc.SetLogicalFunction( wxINVERT );
-        dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top+ch );
+        dc.DrawLine( m_dragLastPos, top, m_dragLastPos, top + ch );
         HideCellEditControl();
         SaveEditControlValue();
 
@@ -5271,15 +6249,141 @@ void wxGrid::DoEndDragResizeCol()
             CalcScrolledPosition(rect.x, 0, &rect.x, &dummy);
             rect.width = cw - rect.x;
             rect.height = m_colLabelHeight;
-            m_colLabelWin->Refresh( TRUE, &rect );
+            m_colLabelWin->Refresh( true, &rect );
             rect.height = ch;
-            m_gridWin->Refresh( FALSE, &rect );
+
+            // if there is a multicell block, paint all of it
+            if (m_table)
+            {
+                int i, cell_rows, cell_cols, subtract_cols = 0;
+                int topRow = YToRow(top);
+                int bottomRow = internalYToRow(top + cw);
+                if (topRow >= 0)
+                {
+                    for (i=topRow; i<bottomRow; i++)
+                    {
+                        GetCellSize(i, m_dragRowOrCol, &cell_rows, &cell_cols);
+                        if (cell_cols < subtract_cols)
+                            subtract_cols = cell_cols;
+                    }
+
+                    rect.x = GetColLeft(m_dragRowOrCol + subtract_cols);
+                    CalcScrolledPosition(rect.x, 0, &rect.x, &dummy);
+                    rect.width = cw - rect.x;
+                }
+            }
+
+            m_gridWin->Refresh( false, &rect );
         }
 
         ShowCellEditControl();
     }
 }
 
+void wxGrid::DoEndDragMoveCol()
+{
+    //The user clicked on the column but didn't actually drag
+    if ( m_dragLastPos < 0 )
+    {
+        m_colLabelWin->Refresh();   //Do this to "unpress" the column
+        return;
+    }
+
+    int newPos;
+    if ( m_moveToCol == -1 )
+        newPos = m_numCols - 1;
+    else
+    {
+        newPos = GetColPos( m_moveToCol );
+        if ( newPos > GetColPos( m_dragRowOrCol ) )
+            newPos--;
+    }
+
+    SetColPos( m_dragRowOrCol, newPos );
+}
+
+void wxGrid::SetColPos( int colID, int newPos )
+{
+    if ( m_colAt.IsEmpty() )
+    {
+        m_colAt.Alloc( m_numCols );
+
+        int i;
+        for ( i = 0; i < m_numCols; i++ )
+        {
+            m_colAt.Add( i );
+        }
+    }
+
+    int oldPos = GetColPos( colID );
+
+    //Reshuffle the m_colAt array
+    if ( newPos > oldPos )
+    {
+        int i;
+        for ( i = oldPos; i < newPos; i++ )
+        {
+            m_colAt[i] = m_colAt[i+1];
+        }
+    }
+    else
+    {
+        int i;
+        for ( i = oldPos; i > newPos; i-- )
+        {
+            m_colAt[i] = m_colAt[i-1];
+        }
+    }
+
+    m_colAt[newPos] = colID;
+
+    //Recalculate the column rights
+    if ( !m_colWidths.IsEmpty() )
+    {
+        int colRight = 0;
+        int colPos;
+        for ( colPos = 0; colPos < m_numCols; colPos++ )
+        {
+            int colID = GetColAt( colPos );
+
+            colRight += m_colWidths[colID];
+            m_colRights[colID] = colRight;
+        }
+    }
+
+    m_colLabelWin->Refresh();
+    m_gridWin->Refresh();
+}
+
+
+
+void wxGrid::EnableDragColMove( bool enable )
+{
+    if ( m_canDragColMove == enable )
+        return;
+
+    m_canDragColMove = enable;
+
+    if ( !m_canDragColMove )
+    {
+        m_colAt.Clear();
+
+        //Recalculate the column rights
+        if ( !m_colWidths.IsEmpty() )
+        {
+            int colRight = 0;
+            int colPos;
+            for ( colPos = 0; colPos < m_numCols; colPos++ )
+            {
+                colRight += m_colWidths[colPos];
+                m_colRights[colPos] = colRight;
+            }
+        }
+
+        m_colLabelWin->Refresh();
+        m_gridWin->Refresh();
+    }
+}
 
 
 //
@@ -5304,14 +6408,12 @@ bool wxGrid::ProcessTableMessage( wxGridTableMessage& msg )
             return Redimension( msg );
 
         default:
-            return FALSE;
+            return false;
     }
 }
 
-
-
 // The behaviour of this function depends on the grid table class
-// Clear() function.  For the default wxGridStringTable class the
+// Clear() function. For the default wxGridStringTable class the
 // behavious is to replace all cell contents with wxEmptyString but
 // not to change the number of rows or cols.
 //
@@ -5323,11 +6425,11 @@ void wxGrid::ClearGrid()
             DisableCellEditControl();
 
         m_table->Clear();
-        if ( !GetBatchCount() ) m_gridWin->Refresh();
+        if (!GetBatchCount())
+            m_gridWin->Refresh();
     }
 }
 
-
 bool wxGrid::InsertRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
 {
     // TODO: something with updateLabels flag
@@ -5335,7 +6437,7 @@ bool wxGrid::InsertRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::InsertRows() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
     if ( m_table )
@@ -5343,14 +6445,15 @@ bool wxGrid::InsertRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
         if (IsCellEditControlEnabled())
             DisableCellEditControl();
 
-        return m_table->InsertRows( pos, numRows );
+        bool done = m_table->InsertRows( pos, numRows );
+        return done;
 
         // the table will have sent the results of the insert row
         // operation to this view object as a grid table message
     }
-    return FALSE;
-}
 
+    return false;
+}
 
 bool wxGrid::AppendRows( int numRows, bool WXUNUSED(updateLabels) )
 {
@@ -5359,14 +6462,20 @@ bool wxGrid::AppendRows( int numRows, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::AppendRows() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
-    return ( m_table && m_table->AppendRows( numRows ) );
-    // the table will have sent the results of the append row
-    // operation to this view object as a grid table message
-}
+    if ( m_table )
+    {
+        bool done = m_table && m_table->AppendRows( numRows );
+        return done;
+
+        // the table will have sent the results of the append row
+        // operation to this view object as a grid table message
+    }
 
+    return false;
+}
 
 bool wxGrid::DeleteRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
 {
@@ -5375,7 +6484,7 @@ bool wxGrid::DeleteRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::DeleteRows() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
     if ( m_table )
@@ -5383,13 +6492,14 @@ bool wxGrid::DeleteRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
         if (IsCellEditControlEnabled())
             DisableCellEditControl();
 
-        return (m_table->DeleteRows( pos, numRows ));
+        bool done = m_table->DeleteRows( pos, numRows );
+        return done;
         // the table will have sent the results of the delete row
         // operation to this view object as a grid table message
     }
-    return FALSE;
-}
 
+    return false;
+}
 
 bool wxGrid::InsertCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
 {
@@ -5398,7 +6508,7 @@ bool wxGrid::InsertCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::InsertCols() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
     if ( m_table )
@@ -5406,13 +6516,14 @@ bool wxGrid::InsertCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
         if (IsCellEditControlEnabled())
             DisableCellEditControl();
 
-        return m_table->InsertCols( pos, numCols );
+        bool done = m_table->InsertCols( pos, numCols );
+        return done;
         // the table will have sent the results of the insert col
         // operation to this view object as a grid table message
     }
-    return FALSE;
-}
 
+    return false;
+}
 
 bool wxGrid::AppendCols( int numCols, bool WXUNUSED(updateLabels) )
 {
@@ -5421,14 +6532,19 @@ bool wxGrid::AppendCols( int numCols, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::AppendCols() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
-    return ( m_table && m_table->AppendCols( numCols ) );
-    // the table will have sent the results of the append col
-    // operation to this view object as a grid table message
-}
+    if ( m_table )
+    {
+        bool done = m_table->AppendCols( numCols );
+        return done;
+        // the table will have sent the results of the append col
+        // operation to this view object as a grid table message
+    }
 
+    return false;
+}
 
 bool wxGrid::DeleteCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
 {
@@ -5437,7 +6553,7 @@ bool wxGrid::DeleteCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
     if ( !m_created )
     {
         wxFAIL_MSG( wxT("Called wxGrid::DeleteCols() before calling CreateGrid()") );
-        return FALSE;
+        return false;
     }
 
     if ( m_table )
@@ -5445,14 +6561,14 @@ bool wxGrid::DeleteCols( int pos, int numCols, bool WXUNUSED(updateLabels) )
         if (IsCellEditControlEnabled())
             DisableCellEditControl();
 
-        return ( m_table->DeleteCols( pos, numCols ) );
+        bool done = m_table->DeleteCols( pos, numCols );
+        return done;
         // the table will have sent the results of the delete col
         // operation to this view object as a grid table message
     }
-    return FALSE;
-}
-
 
+    return false;
+}
 
 //
 // ----- event handlers
@@ -5465,8 +6581,7 @@ int wxGrid::SendEvent( const wxEventType type,
                         int row, int col,
                         wxMouseEvent& mouseEv )
 {
-   bool claimed;
-   bool vetoed= FALSE;
+   bool claimed, vetoed;
 
    if ( type == wxEVT_GRID_ROW_SIZE || type == wxEVT_GRID_COL_SIZE )
    {
@@ -5494,7 +6609,7 @@ int wxGrid::SendEvent( const wxEventType type,
                this,
                m_selectingTopLeft,
                m_selectingBottomRight,
-               TRUE,
+               true,
                mouseEv.ControlDown(),
                mouseEv.ShiftDown(),
                mouseEv.AltDown(),
@@ -5511,7 +6626,7 @@ int wxGrid::SendEvent( const wxEventType type,
                row, col,
                mouseEv.GetX() + GetRowLabelSize(),
                mouseEv.GetY() + GetColLabelSize(),
-               FALSE,
+               false,
                mouseEv.ControlDown(),
                mouseEv.ShiftDown(),
                mouseEv.AltDown(),
@@ -5521,54 +6636,138 @@ int wxGrid::SendEvent( const wxEventType type,
    }
 
    // A Veto'd event may not be `claimed' so test this first
-   if (vetoed) return -1;
+   if (vetoed)
+       return -1;
+
    return claimed ? 1 : 0;
 }
 
-
 // Generate a grid event of specified type and return the result
 // of ProcessEvent().
 //
 int wxGrid::SendEvent( const wxEventType type,
                         int row, int col )
 {
-   bool claimed;
-   bool vetoed= FALSE;
+   bool claimed, vetoed;
 
     if ( type == wxEVT_GRID_ROW_SIZE || type == wxEVT_GRID_COL_SIZE )
     {
         int rowOrCol = (row == -1 ? col : row);
 
-        wxGridSizeEvent gridEvt( GetId(),
-                                 type,
-                                 this,
-                                 rowOrCol );
+        wxGridSizeEvent gridEvt( GetId(), type, this, rowOrCol );
 
         claimed = GetEventHandler()->ProcessEvent(gridEvt);
         vetoed  = !gridEvt.IsAllowed();
     }
     else
     {
-        wxGridEvent gridEvt( GetId(),
-                             type,
-                             this,
-                             row, col );
+        wxGridEvent gridEvt( GetId(), type, this, row, col );
 
         claimed = GetEventHandler()->ProcessEvent(gridEvt);
         vetoed  = !gridEvt.IsAllowed();
      }
 
     // A Veto'd event may not be `claimed' so test this first
-    if (vetoed) return -1;
+    if (vetoed)
+        return -1;
+
     return claimed ? 1 : 0;
 }
 
-
 void wxGrid::OnPaint( wxPaintEvent& WXUNUSED(event) )
 {
-    wxPaintDC dc(this);  // needed to prevent zillions of paint events on MSW
+    // needed to prevent zillions of paint events on MSW
+    wxPaintDC dc(this);
 }
 
+void wxGrid::Refresh(bool eraseb, const wxRect* rect)
+{
+    // Don't do anything if between Begin/EndBatch...
+    // EndBatch() will do all this on the last nested one anyway.
+    if (! GetBatchCount())
+    {
+        // Refresh to get correct scrolled position:
+        wxScrolledWindow::Refresh(eraseb, rect);
+
+        if (rect)
+        {
+            int rect_x, rect_y, rectWidth, rectHeight;
+            int width_label, width_cell, height_label, height_cell;
+            int x, y;
+
+            // Copy rectangle can get scroll offsets..
+            rect_x = rect->GetX();
+            rect_y = rect->GetY();
+            rectWidth = rect->GetWidth();
+            rectHeight = rect->GetHeight();
+
+            width_label = m_rowLabelWidth - rect_x;
+            if (width_label > rectWidth)
+                width_label = rectWidth;
+
+            height_label = m_colLabelHeight - rect_y;
+            if (height_label > rectHeight)
+                height_label = rectHeight;
+
+            if (rect_x > m_rowLabelWidth)
+            {
+                x = rect_x - m_rowLabelWidth;
+                width_cell = rectWidth;
+            }
+            else
+            {
+                x = 0;
+                width_cell = rectWidth - (m_rowLabelWidth - rect_x);
+            }
+
+            if (rect_y > m_colLabelHeight)
+            {
+                y = rect_y - m_colLabelHeight;
+                height_cell = rectHeight;
+            }
+            else
+            {
+                y = 0;
+                height_cell = rectHeight - (m_colLabelHeight - rect_y);
+            }
+
+            // Paint corner label part intersecting rect.
+            if ( width_label > 0 && height_label > 0 )
+            {
+                wxRect anotherrect(rect_x, rect_y, width_label, height_label);
+                m_cornerLabelWin->Refresh(eraseb, &anotherrect);
+            }
+
+            // Paint col labels part intersecting rect.
+            if ( width_cell > 0 && height_label > 0 )
+            {
+                wxRect anotherrect(x, rect_y, width_cell, height_label);
+                m_colLabelWin->Refresh(eraseb, &anotherrect);
+            }
+
+            // Paint row labels part intersecting rect.
+            if ( width_label > 0 && height_cell > 0 )
+            {
+                wxRect anotherrect(rect_x, y, width_label, height_cell);
+                m_rowLabelWin->Refresh(eraseb, &anotherrect);
+            }
+
+            // Paint cell area part intersecting rect.
+            if ( width_cell > 0 && height_cell > 0 )
+            {
+                wxRect anotherrect(x, y, width_cell, height_cell);
+                m_gridWin->Refresh(eraseb, &anotherrect);
+            }
+        }
+        else
+        {
+            m_cornerLabelWin->Refresh(eraseb, NULL);
+            m_colLabelWin->Refresh(eraseb, NULL);
+            m_rowLabelWin->Refresh(eraseb, NULL);
+            m_gridWin->Refresh(eraseb, NULL);
+        }
+    }
+}
 
 void wxGrid::OnSize( wxSizeEvent& event )
 {
@@ -5580,7 +6779,6 @@ void wxGrid::OnSize( wxSizeEvent& event )
     event.Skip();
 }
 
-
 void wxGrid::OnKeyDown( wxKeyEvent& event )
 {
     if ( m_inOnKeyDown )
@@ -5590,63 +6788,44 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
         wxFAIL_MSG( wxT("wxGrid::OnKeyDown called while already active") );
     }
 
-    m_inOnKeyDown = TRUE;
+    m_inOnKeyDown = true;
 
     // propagate the event up and see if it gets processed
-    //
     wxWindow *parent = GetParent();
     wxKeyEvent keyEvt( event );
     keyEvt.SetEventObject( parent );
 
     if ( !parent->GetEventHandler()->ProcessEvent( keyEvt ) )
     {
-
         // try local handlers
-        //
-        switch ( event.KeyCode() )
+        switch ( event.GetKeyCode() )
         {
             case WXK_UP:
                 if ( event.ControlDown() )
-                {
                     MoveCursorUpBlock( event.ShiftDown() );
-                }
                 else
-                {
                     MoveCursorUp( event.ShiftDown() );
-                }
                 break;
 
             case WXK_DOWN:
                 if ( event.ControlDown() )
-                {
                     MoveCursorDownBlock( event.ShiftDown() );
-                }
                 else
-                {
                     MoveCursorDown( event.ShiftDown() );
-                }
                 break;
 
             case WXK_LEFT:
                 if ( event.ControlDown() )
-                {
                     MoveCursorLeftBlock( event.ShiftDown() );
-                }
                 else
-                {
                     MoveCursorLeft( event.ShiftDown() );
-                }
                 break;
 
             case WXK_RIGHT:
                 if ( event.ControlDown() )
-                {
                     MoveCursorRightBlock( event.ShiftDown() );
-                }
                 else
-                {
                     MoveCursorRight( event.ShiftDown() );
-                }
                 break;
 
             case WXK_RETURN:
@@ -5664,8 +6843,7 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
                     else
                     {
                         // at the bottom of a column
-                        HideCellEditControl();
-                        SaveEditControlValue();
+                        DisableCellEditControl();
                     }
                 }
                 break;
@@ -5679,26 +6857,24 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
                 {
                     if ( GetGridCursorCol() > 0 )
                     {
-                        MoveCursorLeft( FALSE );
+                        MoveCursorLeft( false );
                     }
                     else
                     {
                         // at left of grid
-                        HideCellEditControl();
-                        SaveEditControlValue();
+                        DisableCellEditControl();
                     }
                 }
                 else
                 {
-                    if ( GetGridCursorCol() < GetNumberCols()-1 )
+                    if ( GetGridCursorCol() < GetNumberCols() - 1 )
                     {
-                        MoveCursorRight( FALSE );
+                        MoveCursorRight( false );
                     }
                     else
                     {
                         // at right of grid
-                        HideCellEditControl();
-                        SaveEditControlValue();
+                        DisableCellEditControl();
                     }
                 }
                 break;
@@ -5718,8 +6894,8 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
             case WXK_END:
                 if ( event.ControlDown() )
                 {
-                    MakeCellVisible( m_numRows-1, m_numCols-1 );
-                    SetCurrentCell( m_numRows-1, m_numCols-1 );
+                    MakeCellVisible( m_numRows - 1, m_numCols - 1 );
+                    SetCurrentCell( m_numRows - 1, m_numCols - 1 );
                 }
                 else
                 {
@@ -5727,100 +6903,115 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
                 }
                 break;
 
-            case WXK_PRIOR:
+            case WXK_PAGEUP:
                 MovePageUp();
                 break;
 
-            case WXK_NEXT:
+            case WXK_PAGEDOWN:
                 MovePageDown();
                 break;
 
             case WXK_SPACE:
                 if ( event.ControlDown() )
                 {
-                    m_selection->ToggleCellSelection( m_currentCellCoords.GetRow(),
-                                                      m_currentCellCoords.GetCol(),
-                                                      event.ControlDown(),
-                                                      event.ShiftDown(),
-                                                      event.AltDown(),
-                                                      event.MetaDown() );
-                    break;
-                }
-                if ( !IsEditable() )
-                {
-                    MoveCursorRight( FALSE );
-                    break;
-                }
-                // Otherwise fall through to default
-
-            default:
-                // is it possible to edit the current cell at all?
-                if ( !IsCellEditControlEnabled() && CanEnableCellControl() )
-                {
-                    // yes, now check whether the cells editor accepts the key
-                    int row = m_currentCellCoords.GetRow();
-                    int col = m_currentCellCoords.GetCol();
-                    wxGridCellAttr* attr = GetCellAttr(row, col);
-                    wxGridCellEditor *editor = attr->GetEditor(this, row, col);
-
-                    // <F2> is special and will always start editing, for
-                    // other keys - ask the editor itself
-                    if ( (event.KeyCode() == WXK_F2 && !event.HasModifiers())
-                         || editor->IsAcceptedKey(event) )
+                    if ( m_selection )
                     {
-                        EnableCellEditControl();
-
-                        // the editor could be not shown for a variety of
-                        // reasons (i.e. blocked by the app or whatever), so
-                        // check if it really was created
-                        if ( m_cellEditCtrlEnabled )
-                        {
-                            editor->StartingKey(event);
-                        }
-                    }
-                    else
-                    {
-                        event.Skip();
+                        m_selection->ToggleCellSelection(
+                            m_currentCellCoords.GetRow(),
+                            m_currentCellCoords.GetCol(),
+                            event.ControlDown(),
+                            event.ShiftDown(),
+                            event.AltDown(),
+                            event.MetaDown() );
                     }
-
-                    editor->DecRef();
-                    attr->DecRef();
+                    break;
                 }
+
+                if ( !IsEditable() )
+                    MoveCursorRight( false );
                 else
-                {
-                    // let others process char events with modifiers or all
-                    // char events for readonly cells
                     event.Skip();
-                }
+                break;
+
+            default:
+                event.Skip();
                 break;
         }
     }
 
-    m_inOnKeyDown = FALSE;
+    m_inOnKeyDown = false;
 }
 
 void wxGrid::OnKeyUp( wxKeyEvent& event )
 {
     // try local handlers
     //
-    if ( event.KeyCode() == WXK_SHIFT )
+    if ( event.GetKeyCode() == WXK_SHIFT )
     {
         if ( m_selectingTopLeft != wxGridNoCellCoords &&
              m_selectingBottomRight != wxGridNoCellCoords )
-            m_selection->SelectBlock( m_selectingTopLeft.GetRow(),
-                                      m_selectingTopLeft.GetCol(),
-                                      m_selectingBottomRight.GetRow(),
-                                      m_selectingBottomRight.GetCol(),
-                                      event.ControlDown(),
-                                      TRUE,
-                                      event.AltDown(),
-                                      event.MetaDown() );
+        {
+            if ( m_selection )
+            {
+                m_selection->SelectBlock(
+                    m_selectingTopLeft.GetRow(),
+                    m_selectingTopLeft.GetCol(),
+                    m_selectingBottomRight.GetRow(),
+                    m_selectingBottomRight.GetCol(),
+                    event.ControlDown(),
+                    true,
+                    event.AltDown(),
+                    event.MetaDown() );
+            }
+        }
+
         m_selectingTopLeft = wxGridNoCellCoords;
         m_selectingBottomRight = wxGridNoCellCoords;
         m_selectingKeyboard = wxGridNoCellCoords;
     }
 }
 
+void wxGrid::OnChar( wxKeyEvent& event )
+{
+    // is it possible to edit the current cell at all?
+    if ( !IsCellEditControlEnabled() && CanEnableCellControl() )
+    {
+        // yes, now check whether the cells editor accepts the key
+        int row = m_currentCellCoords.GetRow();
+        int col = m_currentCellCoords.GetCol();
+        wxGridCellAttr *attr = GetCellAttr(row, col);
+        wxGridCellEditor *editor = attr->GetEditor(this, row, col);
+
+        // <F2> is special and will always start editing, for
+        // other keys - ask the editor itself
+        if ( (event.GetKeyCode() == WXK_F2 && !event.HasModifiers())
+             || editor->IsAcceptedKey(event) )
+        {
+            // ensure cell is visble
+            MakeCellVisible(row, col);
+            EnableCellEditControl();
+
+            // a problem can arise if the cell is not completely
+            // visible (even after calling MakeCellVisible the
+            // control is not created and calling StartingKey will
+            // crash the app
+            if ( event.GetKeyCode() != WXK_F2 && editor->IsCreated() && m_cellEditCtrlEnabled )
+                editor->StartingKey(event);
+        }
+        else
+        {
+            event.Skip();
+        }
+
+        editor->DecRef();
+        attr->DecRef();
+    }
+    else
+    {
+        event.Skip();
+    }
+}
+
 void wxGrid::OnEraseBackground(wxEraseEvent&)
 {
 }
@@ -5833,18 +7024,17 @@ void wxGrid::SetCurrentCell( const wxGridCellCoords& coords )
         return;
     }
 
-    wxClientDC dc(m_gridWin);
-    PrepareDC(dc);
+    wxClientDC dc( m_gridWin );
+    PrepareDC( dc );
 
     if ( m_currentCellCoords != wxGridNoCellCoords )
     {
-        HideCellEditControl();
         DisableCellEditControl();
 
-        if ( IsVisible( m_currentCellCoords, FALSE ) )
+        if ( IsVisible( m_currentCellCoords, false ) )
         {
             wxRect r;
-            r = BlockToDeviceRect(m_currentCellCoords, coords);
+            r = BlockToDeviceRect( m_currentCellCoords, m_currentCellCoords );
             if ( !m_gridLinesEnabled )
             {
                 r.x--;
@@ -5853,39 +7043,42 @@ void wxGrid::SetCurrentCell( const wxGridCellCoords& coords )
                 r.height++;
             }
 
-             wxGridCellCoordsArray cells = CalcCellsExposed( r );
+            wxGridCellCoordsArray cells = CalcCellsExposed( r );
 
             // Otherwise refresh redraws the highlight!
             m_currentCellCoords = coords;
 
-            DrawGridCellArea(dc,cells);
+            DrawGridCellArea( dc, cells );
             DrawAllGridLines( dc, r );
         }
     }
 
     m_currentCellCoords = coords;
 
-    wxGridCellAttr* attr = GetCellAttr(coords);
-    DrawCellHighlight(dc, attr);
+    wxGridCellAttr *attr = GetCellAttr( coords );
+    DrawCellHighlight( dc, attr );
     attr->DecRef();
 }
 
-
 void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCol )
 {
     int temp;
     wxGridCellCoords updateTopLeft, updateBottomRight;
 
-    if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectRows )
+    if ( m_selection )
     {
-        leftCol = 0;
-        rightCol = GetNumberCols() - 1;
-    }
-    else if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectColumns )
-    {
-        topRow = 0;
-        bottomRow = GetNumberRows() - 1;
+        if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectRows )
+        {
+            leftCol = 0;
+            rightCol = GetNumberCols() - 1;
+        }
+        else if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectColumns )
+        {
+            topRow = 0;
+            bottomRow = GetNumberRows() - 1;
+        }
     }
+
     if ( topRow > bottomRow )
     {
         temp = topRow;
@@ -5903,8 +7096,19 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
     updateTopLeft = wxGridCellCoords( topRow, leftCol );
     updateBottomRight = wxGridCellCoords( bottomRow, rightCol );
 
-    if ( m_selectingTopLeft != updateTopLeft ||
-         m_selectingBottomRight != updateBottomRight )
+    // First the case that we selected a completely new area
+    if ( m_selectingTopLeft == wxGridNoCellCoords ||
+         m_selectingBottomRight == wxGridNoCellCoords )
+    {
+        wxRect rect;
+        rect = BlockToDeviceRect( wxGridCellCoords ( topRow, leftCol ),
+                                  wxGridCellCoords ( bottomRow, rightCol ) );
+        m_gridWin->Refresh( false, &rect );
+    }
+
+    // Now handle changing an existing selection area.
+    else if ( m_selectingTopLeft != updateTopLeft ||
+              m_selectingBottomRight != updateBottomRight )
     {
         // Compute two optimal update rectangles:
         // Either one rectangle is a real subset of the
@@ -5914,13 +7118,13 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
         need_refresh[0] =
         need_refresh[1] =
         need_refresh[2] =
-        need_refresh[3] = FALSE;
+        need_refresh[3] = false;
         int     i;
 
         // Store intermediate values
-        wxCoord oldLeft   = m_selectingTopLeft.GetCol();
-        wxCoord oldTop    = m_selectingTopLeft.GetRow();
-        wxCoord oldRight  = m_selectingBottomRight.GetCol();
+        wxCoord oldLeft = m_selectingTopLeft.GetCol();
+        wxCoord oldTop = m_selectingTopLeft.GetRow();
+        wxCoord oldRight = m_selectingBottomRight.GetCol();
         wxCoord oldBottom = m_selectingBottomRight.GetRow();
 
         // Determine the outer/inner coordinates.
@@ -5955,54 +7159,53 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
 
         if ( oldLeft < leftCol )
         {
-            need_refresh[0] = TRUE;
-            rect[0] = BlockToDeviceRect( wxGridCellCoords ( oldTop,
-                                                            oldLeft ),
-                                         wxGridCellCoords ( oldBottom,
-                                                            leftCol - 1 ) );
+            // Refresh the newly selected or deselected
+            // area to the left of the old or new selection.
+            need_refresh[0] = true;
+            rect[0] = BlockToDeviceRect(
+                wxGridCellCoords( oldTop,  oldLeft ),
+                wxGridCellCoords( oldBottom, leftCol - 1 ) );
         }
 
-        if ( oldTop  < topRow )
+        if ( oldTop < topRow )
         {
-            need_refresh[1] = TRUE;
-            rect[1] = BlockToDeviceRect( wxGridCellCoords ( oldTop,
-                                                            leftCol ),
-                                         wxGridCellCoords ( topRow - 1,
-                                                            rightCol ) );
+            // Refresh the newly selected or deselected
+            // area above the old or new selection.
+            need_refresh[1] = true;
+            rect[1] = BlockToDeviceRect(
+                wxGridCellCoords( oldTop, leftCol ),
+                wxGridCellCoords( topRow - 1, rightCol ) );
         }
 
         if ( oldRight > rightCol )
         {
-            need_refresh[2] = TRUE;
-            rect[2] = BlockToDeviceRect( wxGridCellCoords ( oldTop,
-                                                            rightCol + 1 ),
-                                         wxGridCellCoords ( oldBottom,
-                                                            oldRight ) );
+            // Refresh the newly selected or deselected
+            // area to the right of the old or new selection.
+            need_refresh[2] = true;
+            rect[2] = BlockToDeviceRect(
+                wxGridCellCoords( oldTop, rightCol + 1 ),
+                wxGridCellCoords( oldBottom, oldRight ) );
         }
 
         if ( oldBottom > bottomRow )
         {
-            need_refresh[3] = TRUE;
-            rect[3] = BlockToDeviceRect( wxGridCellCoords ( bottomRow + 1,
-                                                            leftCol ),
-                                         wxGridCellCoords ( oldBottom,
-                                                            rightCol ) );
+            // Refresh the newly selected or deselected
+            // area below the old or new selection.
+            need_refresh[3] = true;
+            rect[3] = BlockToDeviceRect(
+                wxGridCellCoords( bottomRow + 1, leftCol ),
+                wxGridCellCoords( oldBottom, rightCol ) );
         }
 
-
-        // Change Selection
-        m_selectingTopLeft = updateTopLeft;
-        m_selectingBottomRight = updateBottomRight;
-
         // various Refresh() calls
         for (i = 0; i < 4; i++ )
             if ( need_refresh[i] && rect[i] != wxGridNoCellRect )
-                m_gridWin->Refresh( FALSE, &(rect[i]) );
+                m_gridWin->Refresh( false, &(rect[i]) );
     }
 
-    // never generate an event as it will be generated from
-    // wxGridSelection::SelectBlock!
-    // (old comment from when this was the body of SelectBlock)
+    // change selection
+    m_selectingTopLeft = updateTopLeft;
+    m_selectingBottomRight = updateBottomRight;
 }
 
 //
@@ -6011,57 +7214,164 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
 
 bool wxGrid::GetModelValues()
 {
+    // Hide the editor, so it won't hide a changed value.
+    HideCellEditControl();
+
     if ( m_table )
     {
         // all we need to do is repaint the grid
         //
         m_gridWin->Refresh();
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
 bool wxGrid::SetModelValues()
 {
     int row, col;
 
+    // Disable the editor, so it won't hide a changed value.
+    // Do we also want to save the current value of the editor first?
+    // I think so ...
+    DisableCellEditControl();
+
     if ( m_table )
     {
-        for ( row = 0;  row < m_numRows;  row++ )
+        for ( row = 0; row < m_numRows; row++ )
         {
-            for ( col = 0;  col < m_numCols;  col++ )
+            for ( col = 0; col < m_numCols; col++ )
             {
                 m_table->SetValue( row, col, GetCellValue(row, col) );
             }
         }
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
-
 // Note - this function only draws cells that are in the list of
 // exposed cells (usually set from the update region by
 // CalcExposedCells)
 //
 void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
 {
-    if ( !m_numRows || !m_numCols ) return;
+    if ( !m_numRows || !m_numCols )
+        return;
 
-    size_t i;
-    size_t numCells = cells.GetCount();
+    int i, numCells = cells.GetCount();
+    int row, col, cell_rows, cell_cols;
+    wxGridCellCoordsArray redrawCells;
 
-    for ( i = 0;  i < numCells;  i++ )
+    for ( i = numCells - 1; i >= 0; i-- )
     {
+        row = cells[i].GetRow();
+        col = cells[i].GetCol();
+        GetCellSize( row, col, &cell_rows, &cell_cols );
+
+        // If this cell is part of a multicell block, find owner for repaint
+        if ( cell_rows <= 0 || cell_cols <= 0 )
+        {
+            wxGridCellCoords cell( row + cell_rows, col + cell_cols );
+            bool marked = false;
+            for ( int j = 0; j < numCells; j++ )
+            {
+                if ( cell == cells[j] )
+                {
+                    marked = true;
+                    break;
+                }
+            }
+
+            if (!marked)
+            {
+                int count = redrawCells.GetCount();
+                for (int j = 0; j < count; j++)
+                {
+                    if ( cell == redrawCells[j] )
+                    {
+                        marked = true;
+                        break;
+                    }
+                }
+
+                if (!marked)
+                    redrawCells.Add( cell );
+            }
+
+            // don't bother drawing this cell
+            continue;
+        }
+
+        // If this cell is empty, find cell to left that might want to overflow
+        if (m_table && m_table->IsEmptyCell(row, col))
+        {
+            for ( int l = 0; l < cell_rows; l++ )
+            {
+                // find a cell in this row to leave already marked for repaint
+                int left = col;
+                for (int k = 0; k < int(redrawCells.GetCount()); k++)
+                    if ((redrawCells[k].GetCol() < left) &&
+                        (redrawCells[k].GetRow() == row))
+                    {
+                        left = redrawCells[k].GetCol();
+                    }
+
+                if (left == col)
+                    left = 0; // oh well
+
+                for (int j = col - 1; j >= left; j--)
+                {
+                    if (!m_table->IsEmptyCell(row + l, j))
+                    {
+                        if (GetCellOverflow(row + l, j))
+                        {
+                            wxGridCellCoords cell(row + l, j);
+                            bool marked = false;
+
+                            for (int k = 0; k < numCells; k++)
+                            {
+                                if ( cell == cells[k] )
+                                {
+                                    marked = true;
+                                    break;
+                                }
+                            }
+
+                            if (!marked)
+                            {
+                                int count = redrawCells.GetCount();
+                                for (int k = 0; k < count; k++)
+                                {
+                                    if ( cell == redrawCells[k] )
+                                    {
+                                        marked = true;
+                                        break;
+                                    }
+                                }
+                                if (!marked)
+                                    redrawCells.Add( cell );
+                            }
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+
         DrawCell( dc, cells[i] );
     }
-}
 
+    numCells = redrawCells.GetCount();
+
+    for ( i = numCells - 1; i >= 0; i-- )
+    {
+        DrawCell( dc, redrawCells[i] );
+    }
+}
 
 void wxGrid::DrawGridSpace( wxDC& dc )
 {
@@ -6071,8 +7381,8 @@ void wxGrid::DrawGridSpace( wxDC& dc )
   int right, bottom;
   CalcUnscrolledPosition( cw, ch, &right, &bottom );
 
-  int rightCol = m_numCols > 0 ? GetColRight(m_numCols - 1) : 0;
-  int bottomRow = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0 ;
+  int rightCol = m_numCols > 0 ? GetColRight(GetColAt( m_numCols - 1 )) : 0;
+  int bottomRow = m_numRows > 0 ? GetRowBottom(m_numRows - 1) : 0;
 
   if ( right > rightCol || bottom > bottomRow )
   {
@@ -6084,17 +7394,16 @@ void wxGrid::DrawGridSpace( wxDC& dc )
 
       if ( right > rightCol )
       {
-          dc.DrawRectangle( rightCol, top, right - rightCol, ch);
+          dc.DrawRectangle( rightCol, top, right - rightCol, ch );
       }
 
       if ( bottom > bottomRow )
       {
-          dc.DrawRectangle( left, bottomRow, cw, bottom - bottomRow);
+          dc.DrawRectangle( left, bottomRow, cw, bottom - bottomRow );
       }
   }
 }
 
-
 void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
 {
     int row = coords.GetRow();
@@ -6119,14 +7428,19 @@ void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
     // Note: However, only if it is really _shown_, i.e. not hidden!
     if ( isCurrent && IsCellEditControlShown() )
     {
+        // NB: this "#if..." is temporary and fixes a problem where the
+        // edit control is erased by this code after being rendered.
+        // On wxMac (QD build only), the cell editor is a wxTextCntl and is rendered
+        // implicitly, causing this out-of order render.
+#if !defined(__WXMAC__) || wxMAC_USE_CORE_GRAPHICS
         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
         editor->PaintBackground(rect, attr);
         editor->DecRef();
+#endif
     }
     else
     {
-        // but all the rest is drawn by the cell renderer and hence may be
-        // customized
+        // but all the rest is drawn by the cell renderer and hence may be customized
         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
         renderer->Draw(*this, *attr, dc, rect, row, col, IsInSelection(coords));
         renderer->DecRef();
@@ -6151,48 +7465,48 @@ void wxGrid::DrawCellHighlight( wxDC& dc, const wxGridCellAttr *attr )
 
     int penWidth = attr->IsReadOnly() ? m_cellHighlightROPenWidth : m_cellHighlightPenWidth;
 
-    if (penWidth > 0) {
-
-        // The center of th drawn line is where the position/width/height of
-        // the rectangle is actually at, (on wxMSW atr least,) so we will
-        // reduce the size of the rectangle to compensate for the thickness of
-        // the line.  If this is too strange on non wxMSW platforms then
+    if (penWidth > 0)
+    {
+        // The center of the drawn line is where the position/width/height of
+        // the rectangle is actually at (on wxMSW at least), so the
+        // size of the rectangle is reduced to compensate for the thickness of
+        // the line. If this is too strange on non-wxMSW platforms then
         // please #ifdef this appropriately.
-        rect.x += penWidth/2;
-        rect.y += penWidth/2;
-        rect.width -= penWidth-1;
-        rect.height -= penWidth-1;
-
+        rect.x += penWidth / 2;
+        rect.y += penWidth / 2;
+        rect.width -= penWidth - 1;
+        rect.height -= penWidth - 1;
 
         // Now draw the rectangle
-        dc.SetPen(wxPen(m_cellHighlightColour, penWidth, wxSOLID));
+        // use the cellHighlightColour if the cell is inside a selection, this
+        // will ensure the cell is always visible.
+        dc.SetPen(wxPen(IsInSelection(row,col) ? m_selectionForeground : m_cellHighlightColour, penWidth, wxSOLID));
         dc.SetBrush(*wxTRANSPARENT_BRUSH);
         dc.DrawRectangle(rect);
     }
 
 #if 0
-        // VZ: my experiments with 3d borders...
+        // VZ: my experiments with 3D borders...
 
         // how to properly set colours for arbitrary bg?
         wxCoord x1 = rect.x,
                 y1 = rect.y,
-                x2 = rect.x + rect.width -1,
-                y2 = rect.y + rect.height -1;
+                x2 = rect.x + rect.width - 1,
+                y2 = rect.y + rect.height - 1;
 
         dc.SetPen(*wxWHITE_PEN);
         dc.DrawLine(x1, y1, x2, y1);
         dc.DrawLine(x1, y1, x1, y2);
 
         dc.DrawLine(x1 + 1, y2 - 1, x2 - 1, y2 - 1);
-        dc.DrawLine(x2 - 1, y1 + 1, x2 - 1, y2 );
+        dc.DrawLine(x2 - 1, y1 + 1, x2 - 1, y2);
 
         dc.SetPen(*wxBLACK_PEN);
         dc.DrawLine(x1, y2, x2, y2);
-        dc.DrawLine(x2, y1, x2, y2+1);
-#endif // 0
+        dc.DrawLine(x2, y1, x2, y2 + 1);
+#endif
 }
 
-
 void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
 {
     int row = coords.GetRow();
@@ -6202,23 +7516,23 @@ void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
 
     dc.SetPen( wxPen(GetGridLineColour(), 1, wxSOLID) );
 
+    wxRect rect = CellToRect( row, col );
+
     // right hand border
-    //
-    dc.DrawLine( GetColRight(col), GetRowTop(row),
-                 GetColRight(col), GetRowBottom(row) );
+    dc.DrawLine( rect.x + rect.width, rect.y,
+                 rect.x + rect.width, rect.y + rect.height + 1 );
 
     // bottom border
-    //
-    dc.DrawLine( GetColLeft(col), GetRowBottom(row),
-                 GetColRight(col), GetRowBottom(row) );
+    dc.DrawLine( rect.x, rect.y + rect.height,
+                 rect.x + rect.width, rect.y + rect.height);
 }
 
-void wxGrid::DrawHighlight(wxDC& dc,const  wxGridCellCoordsArray& cells)
+void wxGrid::DrawHighlight(wxDC& dc, const wxGridCellCoordsArray& cells)
 {
     // This if block was previously in wxGrid::OnPaint but that doesn't
     // seem to get called under wxGTK - MB
     //
-    if ( m_currentCellCoords == wxGridNoCellCoords  &&
+    if ( m_currentCellCoords == wxGridNoCellCoords &&
          m_numRows && m_numCols )
     {
         m_currentCellCoords.Set(0, 0);
@@ -6252,9 +7566,12 @@ void wxGrid::DrawHighlight(wxDC& dc,const  wxGridCellCoordsArray& cells)
 //
 void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
 {
-    if ( !m_gridLinesEnabled ||
-         !m_numRows ||
-         !m_numCols ) return;
+#if !WXGRID_DRAW_LINES
+    return;
+#endif
+
+    if ( !m_gridLinesEnabled || !m_numRows || !m_numCols )
+         return;
 
     int top, bottom, left, right;
 
@@ -6276,24 +7593,86 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
       CalcUnscrolledPosition( x, y, &left, &top );
       CalcUnscrolledPosition( x + w, y + h, &right, &bottom );
     }
-#else
-      int cw, ch;
-      m_gridWin->GetClientSize(&cw, &ch);
-      CalcUnscrolledPosition( 0, 0, &left, &top );
-      CalcUnscrolledPosition( cw, ch, &right, &bottom );
+#else
+      int cw, ch;
+      m_gridWin->GetClientSize(&cw, &ch);
+      CalcUnscrolledPosition( 0, 0, &left, &top );
+      CalcUnscrolledPosition( cw, ch, &right, &bottom );
+#endif
+
+    // avoid drawing grid lines past the last row and col
+    //
+    right = wxMin( right, GetColRight(GetColAt( m_numCols - 1 )) );
+    bottom = wxMin( bottom, GetRowBottom(m_numRows - 1) );
+
+    // no gridlines inside multicells, clip them out
+    int leftCol = GetColPos( internalXToCol(left) );
+    int topRow = internalYToRow(top);
+    int rightCol = GetColPos( internalXToCol(right) );
+    int bottomRow = internalYToRow(bottom);
+
+#ifndef __WXMAC__
+    // CS: I don't know why suddenly unscrolled coordinates are used for clipping
+    wxRegion clippedcells(0, 0, cw, ch);
+
+    int i, j, cell_rows, cell_cols;
+    wxRect rect;
+
+    for (j=topRow; j<bottomRow; j++)
+    {
+        int colPos;
+        for (colPos=leftCol; colPos<rightCol; colPos++)
+        {
+            i = GetColAt( colPos );
+
+            GetCellSize( j, i, &cell_rows, &cell_cols );
+            if ((cell_rows > 1) || (cell_cols > 1))
+            {
+                rect = CellToRect(j,i);
+                CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+                clippedcells.Subtract(rect);
+            }
+            else if ((cell_rows < 0) || (cell_cols < 0))
+            {
+                rect = CellToRect(j + cell_rows, i + cell_cols);
+                CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
+                clippedcells.Subtract(rect);
+            }
+        }
+    }
+#else
+    wxRegion clippedcells( left, top, right - left, bottom - top );
+
+    int i, j, cell_rows, cell_cols;
+    wxRect rect;
+
+    for (j=topRow; j<bottomRow; j++)
+    {
+        for (i=leftCol; i<rightCol; i++)
+        {
+            GetCellSize( j, i, &cell_rows, &cell_cols );
+            if ((cell_rows > 1) || (cell_cols > 1))
+            {
+                rect = CellToRect(j, i);
+                clippedcells.Subtract(rect);
+            }
+            else if ((cell_rows < 0) || (cell_cols < 0))
+            {
+                rect = CellToRect(j + cell_rows, i + cell_cols);
+                clippedcells.Subtract(rect);
+            }
+        }
+    }
 #endif
 
-    // avoid drawing grid lines past the last row and col
-    //
-    right = wxMin( right, GetColRight(m_numCols - 1) );
-    bottom = wxMin( bottom, GetRowBottom(m_numRows - 1) );
+    dc.SetClippingRegion( clippedcells );
 
     dc.SetPen( wxPen(GetGridLineColour(), 1, wxSOLID) );
 
     // horizontal grid lines
     //
-    int i;
-    for ( i = YToRow(top); i < m_numRows; i++ )
+    // already declared above - int i;
+    for ( i = internalYToRow(top); i < m_numRows; i++ )
     {
         int bot = GetRowBottom(i) - 1;
 
@@ -6308,11 +7687,13 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
         }
     }
 
-
     // vertical grid lines
     //
-    for ( i = XToCol(left); i < m_numCols; i++ )
+    int colPos;
+    for ( colPos = leftCol; colPos < m_numCols; colPos++ )
     {
+        i = GetColAt( colPos );
+
         int colRight = GetColRight(i) - 1;
         if ( colRight > right )
         {
@@ -6324,40 +7705,55 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
             dc.DrawLine( colRight, top, colRight, bottom );
         }
     }
-}
 
+    dc.DestroyClippingRegion();
+}
 
-void wxGrid::DrawRowLabels( wxDC& dc ,const wxArrayInt& rows)
+void wxGrid::DrawRowLabels( wxDC& dcconst wxArrayInt& rows)
 {
-    if ( !m_numRows ) return;
+    if ( !m_numRows )
+        return;
 
     size_t i;
     size_t numLabels = rows.GetCount();
 
-    for ( i = 0;  i < numLabels;  i++ )
+    for ( i = 0; i < numLabels; i++ )
     {
         DrawRowLabel( dc, rows[i] );
     }
 }
 
-
 void wxGrid::DrawRowLabel( wxDC& dc, int row )
 {
-    if ( GetRowHeight(row) <= 0 )
+    if ( GetRowHeight(row) <= 0 || m_rowLabelWidth <= 0 )
         return;
 
+    wxRect rect;
+
+#ifdef __WXGTK20__
+    rect.SetX( 1 );
+    rect.SetY( GetRowTop(row) + 1 );
+    rect.SetWidth( m_rowLabelWidth - 2 );
+    rect.SetHeight( GetRowHeight(row) - 2 );
+
+    CalcScrolledPosition( 0, rect.y, NULL, &rect.y );
+
+    wxWindowDC *win_dc = (wxWindowDC*) &dc;
+
+    wxRendererNative::Get().DrawHeaderButton( win_dc->m_owner, dc, rect, 0 );
+#else
     int rowTop = GetRowTop(row),
         rowBottom = GetRowBottom(row) - 1;
 
-    dc.SetPen( *wxBLACK_PEN );
-    dc.DrawLine( m_rowLabelWidth-1, rowTop,
-                 m_rowLabelWidth-1, rowBottom );
-
-    dc.DrawLine( 0, rowBottom, m_rowLabelWidth-1, rowBottom );
+    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW), 1, wxSOLID) );
+    dc.DrawLine( m_rowLabelWidth - 1, rowTop, m_rowLabelWidth - 1, rowBottom );
+    dc.DrawLine( 0, rowTop, 0, rowBottom );
+    dc.DrawLine( 0, rowBottom, m_rowLabelWidth, rowBottom );
 
     dc.SetPen( *wxWHITE_PEN );
-    dc.DrawLine( 0, rowTop, 0, rowBottom );
-    dc.DrawLine( 0, rowTop, m_rowLabelWidth-1, rowTop );
+    dc.DrawLine( 1, rowTop, 1, rowBottom );
+    dc.DrawLine( 1, rowTop, m_rowLabelWidth - 1, rowTop );
+#endif
 
     dc.SetBackgroundMode( wxTRANSPARENT );
     dc.SetTextForeground( GetLabelTextColour() );
@@ -6366,7 +7762,6 @@ void wxGrid::DrawRowLabel( wxDC& dc, int row )
     int hAlign, vAlign;
     GetRowLabelAlignment( &hAlign, &vAlign );
 
-    wxRect rect;
     rect.SetX( 2 );
     rect.SetY( GetRowTop(row) + 2 );
     rect.SetWidth( m_rowLabelWidth - 4 );
@@ -6374,140 +7769,192 @@ void wxGrid::DrawRowLabel( wxDC& dc, int row )
     DrawTextRectangle( dc, GetRowLabelValue( row ), rect, hAlign, vAlign );
 }
 
-
 void wxGrid::DrawColLabels( wxDC& dc,const wxArrayInt& cols )
 {
-    if ( !m_numCols ) return;
+    if ( !m_numCols )
+        return;
 
     size_t i;
     size_t numLabels = cols.GetCount();
 
-    for ( i = 0;  i < numLabels;  i++ )
+    for ( i = 0; i < numLabels; i++ )
     {
         DrawColLabel( dc, cols[i] );
     }
 }
 
-
 void wxGrid::DrawColLabel( wxDC& dc, int col )
 {
-    if ( GetColWidth(col) <= 0 )
+    if ( GetColWidth(col) <= 0 || m_colLabelHeight <= 0 )
         return;
 
-    int colLeft = GetColLeft(col),
-        colRight = GetColRight(col) - 1;
+    int colLeft = GetColLeft(col);
 
-    dc.SetPen( *wxBLACK_PEN );
-    dc.DrawLine( colRight, 0,
-                 colRight, m_colLabelHeight-1 );
+    wxRect rect;
 
-    dc.DrawLine( colLeft, m_colLabelHeight-1,
-                 colRight, m_colLabelHeight-1 );
+#ifdef __WXGTK20__
+    rect.SetX( colLeft + 1 );
+    rect.SetY( 1 );
+    rect.SetWidth( GetColWidth(col) - 2 );
+    rect.SetHeight( m_colLabelHeight - 2 );
 
-    dc.SetPen( *wxWHITE_PEN );
-    dc.DrawLine( colLeft, 0, colLeft, m_colLabelHeight-1 );
+    wxWindowDC *win_dc = (wxWindowDC*) &dc;
+
+    wxRendererNative::Get().DrawHeaderButton( win_dc->m_owner, dc, rect, 0 );
+#else
+    int colRight = GetColRight(col) - 1;
+
+    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW), 1, wxSOLID) );
+    dc.DrawLine( colRight, 0, colRight, m_colLabelHeight - 1 );
     dc.DrawLine( colLeft, 0, colRight, 0 );
+    dc.DrawLine( colLeft, m_colLabelHeight - 1,
+                 colRight + 1, m_colLabelHeight - 1 );
 
-    dc.SetBackgroundMode( wxTRANSPARENT );
-    dc.SetTextForeground( GetLabelTextColour() );
-    dc.SetFont( GetLabelFont() );
+    dc.SetPen( *wxWHITE_PEN );
+    dc.DrawLine( colLeft, 1, colLeft, m_colLabelHeight - 1 );
+    dc.DrawLine( colLeft, 1, colRight, 1 );
+#endif
 
     dc.SetBackgroundMode( wxTRANSPARENT );
     dc.SetTextForeground( GetLabelTextColour() );
     dc.SetFont( GetLabelFont() );
 
-    int hAlign, vAlign;
+    int hAlign, vAlign, orient;
     GetColLabelAlignment( &hAlign, &vAlign );
+    orient = GetColLabelTextOrientation();
 
-    wxRect rect;
     rect.SetX( colLeft + 2 );
     rect.SetY( 2 );
     rect.SetWidth( GetColWidth(col) - 4 );
     rect.SetHeight( m_colLabelHeight - 4 );
-    DrawTextRectangle( dc, GetColLabelValue( col ), rect, hAlign, vAlign );
+    DrawTextRectangle( dc, GetColLabelValue( col ), rect, hAlign, vAlign, orient );
 }
 
 void wxGrid::DrawTextRectangle( wxDC& dc,
                                 const wxString& value,
                                 const wxRect& rect,
                                 int horizAlign,
-                                int vertAlign )
+                                int vertAlign,
+                                int textOrientation )
 {
     wxArrayString lines;
 
-    dc.SetClippingRegion( rect );
     StringToLines( value, lines );
 
+    // Forward to new API.
+    DrawTextRectangle( dc,
+        lines,
+        rect,
+        horizAlign,
+        vertAlign,
+        textOrientation );
+}
+
+// VZ: this should be replaced with wxDC::DrawLabel() to which we just have to
+//     add textOrientation support
+void wxGrid::DrawTextRectangle(wxDC& dc,
+                               const wxArrayString& lines,
+                               const wxRect& rect,
+                               int horizAlign,
+                               int vertAlign,
+                               int textOrientation)
+{
+    if ( lines.empty() )
+        return;
 
-    //Forward to new API.
-    DrawTextRectangle(  dc,
-                        lines,
-                        rect,
-                        horizAlign,
-                        vertAlign );
-
-}
+    wxDCClipper clip(dc, rect);
 
-void wxGrid::DrawTextRectangle( wxDC& dc,
-                                const wxArrayString& lines,
-                                const wxRect& rect,
-                                int horizAlign,
-                                int vertAlign )
-{
-    long textWidth, textHeight;
-    long lineWidth, lineHeight;
+    long textWidth,
+         textHeight;
 
-    if ( lines.GetCount() )
-    {
+    if ( textOrientation == wxHORIZONTAL )
         GetTextBoxSize( dc, lines, &textWidth, &textHeight );
-        dc.GetTextExtent( lines[0], &lineWidth, &lineHeight );
+    else
+        GetTextBoxSize( dc, lines, &textHeight, &textWidth );
 
-        float x, y;
-        switch ( horizAlign )
-        {
-            case wxALIGN_RIGHT:
-                x = rect.x + (rect.width - textWidth - 1);
-                break;
+    int x = 0,
+        y = 0;
+    switch ( vertAlign )
+    {
+        case wxALIGN_BOTTOM:
+            if ( textOrientation == wxHORIZONTAL )
+                y = rect.y + (rect.height - textHeight - 1);
+            else
+                x = rect.x + rect.width - textWidth;
+            break;
 
-            case wxALIGN_CENTRE:
-                x = rect.x + ((rect.width - textWidth)/2);
-                break;
+        case wxALIGN_CENTRE:
+            if ( textOrientation == wxHORIZONTAL )
+                y = rect.y + ((rect.height - textHeight) / 2);
+            else
+                x = rect.x + ((rect.width - textWidth) / 2);
+            break;
 
-            case wxALIGN_LEFT:
-            default:
+        case wxALIGN_TOP:
+        default:
+            if ( textOrientation == wxHORIZONTAL )
+                y = rect.y + 1;
+            else
                 x = rect.x + 1;
-                break;
+            break;
+    }
+
+    // Align each line of a multi-line label
+    size_t nLines = lines.GetCount();
+    for ( size_t l = 0; l < nLines; l++ )
+    {
+        const wxString& line = lines[l];
+
+        if ( line.empty() )
+        {
+            *(textOrientation == wxHORIZONTAL ? &y : &x) += dc.GetCharHeight();
+            continue;
         }
 
-        switch ( vertAlign )
+        long lineWidth,
+             lineHeight;
+        dc.GetTextExtent(line, &lineWidth, &lineHeight);
+
+        switch ( horizAlign )
         {
-            case wxALIGN_BOTTOM:
-                y = rect.y + (rect.height - textHeight - 1);
+            case wxALIGN_RIGHT:
+                if ( textOrientation == wxHORIZONTAL )
+                    x = rect.x + (rect.width - lineWidth - 1);
+                else
+                    y = rect.y + lineWidth + 1;
                 break;
 
             case wxALIGN_CENTRE:
-                y = rect.y + ((rect.height - textHeight)/2);
+                if ( textOrientation == wxHORIZONTAL )
+                    x = rect.x + ((rect.width - lineWidth) / 2);
+                else
+                    y = rect.y + rect.height - ((rect.height - lineWidth) / 2);
                 break;
 
-            case wxALIGN_TOP:
+            case wxALIGN_LEFT:
             default:
-                y = rect.y + 1;
+                if ( textOrientation == wxHORIZONTAL )
+                    x = rect.x + 1;
+                else
+                    y = rect.y + rect.height - 1;
                 break;
         }
 
-        for ( size_t i = 0;  i < lines.GetCount();  i++ )
+        if ( textOrientation == wxHORIZONTAL )
         {
-            dc.DrawText( lines[i], (int)x, (int)y );
+            dc.DrawText( line, x, y );
             y += lineHeight;
         }
+        else
+        {
+            dc.DrawRotatedText( line, x, y, 90.0 );
+            x += lineHeight;
+        }
     }
-
-    dc.DestroyClippingRegion();
 }
 
-
-// Split multi line text up into an array of strings.  Any existing
-// contents of the string array are preserved.
+// Split multi-line text up into an array of strings.
+// Any existing contents of the string array are preserved.
 //
 void wxGrid::StringToLines( const wxString& value, wxArrayString& lines )
 {
@@ -6516,7 +7963,7 @@ void wxGrid::StringToLines( const wxString& value, wxArrayString& lines )
     wxString eol = wxTextFile::GetEOL( wxTextFileType_Unix );
     wxString tVal = wxTextFile::Translate( value, wxTextFileType_Unix );
 
-    while ( startPos < (int)tVal.Length() )
+    while ( startPos < (int)tVal.length() )
     {
         pos = tVal.Mid(startPos).Find( eol );
         if ( pos < 0 )
@@ -6531,25 +7978,26 @@ void wxGrid::StringToLines( const wxString& value, wxArrayString& lines )
         {
             lines.Add( value.Mid(startPos, pos) );
         }
-        startPos += pos+1;
+
+        startPos += pos + 1;
     }
-    if ( startPos < (int)value.Length() )
+
+    if ( startPos < (int)value.length() )
     {
         lines.Add( value.Mid( startPos ) );
     }
 }
 
-
-void wxGrid::GetTextBoxSize( wxDC& dc,
+void wxGrid::GetTextBoxSize( const wxDC& dc,
                              const wxArrayString& lines,
                              long *width, long *height )
 {
     long w = 0;
     long h = 0;
-    long lineW, lineH;
+    long lineW = 0, lineH = 0;
 
     size_t i;
-    for ( i = 0;  i < lines.GetCount();  i++ )
+    for ( i = 0; i < lines.GetCount(); i++ )
     {
         dc.GetTextExtent( lines[i], &lineW, &lineH );
         w = wxMax( w, lineW );
@@ -6589,32 +8037,38 @@ void wxGrid::ForceRefresh()
     EndBatch();
 }
 
+bool wxGrid::Enable(bool enable)
+{
+    if ( !wxScrolledWindow::Enable(enable) )
+        return false;
+
+    // redraw in the new state
+    m_gridWin->Refresh();
+
+    return true;
+}
 
 //
 // ------ Edit control functions
 //
 
-
 void wxGrid::EnableEditing( bool edit )
 {
     // TODO: improve this ?
     //
     if ( edit != m_editable )
     {
-        if(!edit) EnableCellEditControl(edit);
+        if (!edit)
+            EnableCellEditControl(edit);
         m_editable = edit;
     }
 }
 
-
 void wxGrid::EnableCellEditControl( bool enable )
 {
     if (! m_editable)
         return;
 
-    if ( m_currentCellCoords == wxGridNoCellCoords )
-        SetCurrentCell( 0, 0 );
-
     if ( enable != m_cellEditCtrlEnabled )
     {
         if ( enable )
@@ -6623,8 +8077,7 @@ void wxGrid::EnableCellEditControl( bool enable )
                 return;
 
             // this should be checked by the caller!
-            wxASSERT_MSG( CanEnableCellControl(),
-                          _T("can't enable editing for this cell!") );
+            wxASSERT_MSG( CanEnableCellControl(), _T("can't enable editing for this cell!") );
 
             // do it before ShowCellEditControl()
             m_cellEditCtrlEnabled = enable;
@@ -6634,7 +8087,7 @@ void wxGrid::EnableCellEditControl( bool enable )
         else
         {
             //FIXME:add veto support
-            SendEvent( wxEVT_GRID_EDITOR_HIDDEN);
+            SendEvent( wxEVT_GRID_EDITOR_HIDDEN );
 
             HideCellEditControl();
             SaveEditControlValue();
@@ -6657,19 +8110,20 @@ bool wxGrid::IsCurrentCellReadOnly() const
 
 bool wxGrid::CanEnableCellControl() const
 {
-    return m_editable && !IsCurrentCellReadOnly();
+    return m_editable && (m_currentCellCoords != wxGridNoCellCoords) &&
+        !IsCurrentCellReadOnly();
 }
 
 bool wxGrid::IsCellEditControlEnabled() const
 {
     // the cell edit control might be disable for all cells or just for the
     // current one if it's read only
-    return m_cellEditCtrlEnabled ? !IsCurrentCellReadOnly() : FALSE;
+    return m_cellEditCtrlEnabled ? !IsCurrentCellReadOnly() : false;
 }
 
 bool wxGrid::IsCellEditControlShown() const
 {
-    bool isShown = FALSE;
+    bool isShown = false;
 
     if ( m_cellEditCtrlEnabled )
     {
@@ -6697,9 +8151,9 @@ void wxGrid::ShowCellEditControl()
 {
     if ( IsCellEditControlEnabled() )
     {
-        if ( !IsVisible( m_currentCellCoords ) )
+        if ( !IsVisible( m_currentCellCoords, false ) )
         {
-            m_cellEditCtrlEnabled = FALSE;
+            m_cellEditCtrlEnabled = false;
             return;
         }
         else
@@ -6708,30 +8162,46 @@ void wxGrid::ShowCellEditControl()
             int row = m_currentCellCoords.GetRow();
             int col = m_currentCellCoords.GetCol();
 
+            // if this is part of a multicell, find owner (topleft)
+            int cell_rows, cell_cols;
+            GetCellSize( row, col, &cell_rows, &cell_cols );
+            if ( cell_rows <= 0 || cell_cols <= 0 )
+            {
+                row += cell_rows;
+                col += cell_cols;
+                m_currentCellCoords.SetRow( row );
+                m_currentCellCoords.SetCol( col );
+            }
+
             // convert to scrolled coords
-            //
             CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
 
-            // done in PaintBackground()
-#if 0
+            int nXMove = 0;
+            if (rect.x < 0)
+                nXMove = rect.x;
+
             // erase the highlight and the cell contents because the editor
             // might not cover the entire cell
             wxClientDC dc( m_gridWin );
             PrepareDC( dc );
-            dc.SetBrush(*wxLIGHT_GREY_BRUSH); //wxBrush(attr->GetBackgroundColour(), wxSOLID));
+            dc.SetBrush(wxBrush(GetCellAttr(row, col)->GetBackgroundColour(), wxSOLID));
             dc.SetPen(*wxTRANSPARENT_PEN);
             dc.DrawRectangle(rect);
-#endif // 0
 
             // cell is shifted by one pixel
-            rect.x--;
-            rect.y--;
+            // However, don't allow x or y to become negative
+            // since the SetSize() method interprets that as
+            // "don't change."
+            if (rect.x > 0)
+                rect.x--;
+            if (rect.y > 0)
+                rect.y--;
 
             wxGridCellAttr* attr = GetCellAttr(row, col);
             wxGridCellEditor* editor = attr->GetEditor(this, row, col);
             if ( !editor->IsCreated() )
             {
-                editor->Create(m_gridWin, -1,
+                editor->Create(m_gridWin, wxID_ANY,
                                new wxGridCellEditorEvtHandler(this, editor));
 
                 wxGridEditorCreatedEvent evt(GetId(),
@@ -6743,19 +8213,65 @@ void wxGrid::ShowCellEditControl()
                 GetEventHandler()->ProcessEvent(evt);
             }
 
-            editor->Show( TRUE, attr );
+            // resize editor to overflow into righthand cells if allowed
+            int maxWidth = rect.width;
+            wxString value = GetCellValue(row, col);
+            if ( (value != wxEmptyString) && (attr->GetOverflow()) )
+            {
+                int y;
+                GetTextExtent(value, &maxWidth, &y, NULL, NULL, &attr->GetFont());
+                if (maxWidth < rect.width)
+                    maxWidth = rect.width;
+            }
+
+            int client_right = m_gridWin->GetClientSize().GetWidth();
+            if (rect.x + maxWidth > client_right)
+                maxWidth = client_right - rect.x;
+
+            if ((maxWidth > rect.width) && (col < m_numCols) && m_table)
+            {
+                GetCellSize( row, col, &cell_rows, &cell_cols );
+                // may have changed earlier
+                for (int i = col + cell_cols; i < m_numCols; i++)
+                {
+                    int c_rows, c_cols;
+                    GetCellSize( row, i, &c_rows, &c_cols );
+
+                    // looks weird going over a multicell
+                    if (m_table->IsEmptyCell( row, i ) &&
+                            (rect.width < maxWidth) && (c_rows == 1))
+                    {
+                        rect.width += GetColWidth( i );
+                    }
+                    else
+                        break;
+                }
+
+                if (rect.GetRight() > client_right)
+                    rect.SetRight( client_right - 1 );
+            }
 
+            editor->SetCellAttr( attr );
             editor->SetSize( rect );
+            if (nXMove != 0)
+                editor->GetControl()->Move(
+                    editor->GetControl()->GetPosition().x + nXMove,
+                    editor->GetControl()->GetPosition().y );
+            editor->Show( true, attr );
+
+            // recalc dimensions in case we need to
+            // expand the scrolled window to account for editor
+            CalcDimensions();
 
             editor->BeginEdit(row, col, this);
+            editor->SetCellAttr(NULL);
 
             editor->DecRef();
             attr->DecRef();
-         }
+        }
     }
 }
 
-
 void wxGrid::HideCellEditControl()
 {
     if ( IsCellEditControlEnabled() )
@@ -6763,18 +8279,28 @@ void wxGrid::HideCellEditControl()
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
 
-        wxGridCellAttrattr = GetCellAttr(row, col);
+        wxGridCellAttr *attr = GetCellAttr(row, col);
         wxGridCellEditor *editor = attr->GetEditor(this, row, col);
-        editor->Show( FALSE );
+        editor->Show( false );
         editor->DecRef();
         attr->DecRef();
+
         m_gridWin->SetFocus();
-        wxRect rect( CellToRect( row, col ) );
-        m_gridWin->Refresh( FALSE, &rect );
+
+        // refresh whole row to the right
+        wxRect rect( CellToRect(row, col) );
+        CalcScrolledPosition(rect.x, rect.y, &rect.x, &rect.y );
+        rect.width = m_gridWin->GetClientSize().GetWidth() - rect.x;
+
+#ifdef __WXMAC__
+        // ensure that the pixels under the focus ring get refreshed as well
+        rect.Inflate(10, 10);
+#endif
+
+        m_gridWin->Refresh( false, &rect );
     }
 }
 
-
 void wxGrid::SaveEditControlValue()
 {
     if ( IsCellEditControlEnabled() )
@@ -6782,7 +8308,7 @@ void wxGrid::SaveEditControlValue()
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
 
-        wxString oldval = GetCellValue(row,col);
+        wxString oldval = GetCellValue(row, col);
 
         wxGridCellAttr* attr = GetCellAttr(row, col);
         wxGridCellEditor* editor = attr->GetEditor(this, row, col);
@@ -6795,16 +8321,15 @@ void wxGrid::SaveEditControlValue()
         {
             if ( SendEvent( wxEVT_GRID_CELL_CHANGE,
                        m_currentCellCoords.GetRow(),
-                       m_currentCellCoords.GetCol() ) < 0 ) {
-
+                       m_currentCellCoords.GetCol() ) < 0 )
+            {
                 // Event has been vetoed, set the data back.
-                SetCellValue(row,col,oldval);
+                SetCellValue(row, col, oldval);
             }
         }
     }
 }
 
-
 //
 // ------ Grid location functions
 //  Note that all of these functions work with the logical coordinates of
@@ -6817,7 +8342,7 @@ void wxGrid::XYToCell( int x, int y, wxGridCellCoords& coords )
     int row = YToRow(y);
     int col = XToCol(x);
 
-    if ( row == -1  ||  col == -1 )
+    if ( row == -1 || col == -1 )
     {
         coords = wxGridNoCellCoords;
     }
@@ -6827,47 +8352,61 @@ void wxGrid::XYToCell( int x, int y, wxGridCellCoords& coords )
     }
 }
 
-
 // Internal Helper function for computing row or column from some
 // (unscrolled) coordinate value, using either
-// m_defaultRowHeight/m_defaultColWidth or binary search on array 
+// m_defaultRowHeight/m_defaultColWidth or binary search on array
 // of m_rowBottoms/m_ColRights to speed up the search!
 
 static int CoordToRowOrCol(int coord, int defaultDist, int minDist,
-                           wxArrayInt BorderArray)
+                           const wxArrayInt& BorderArray, int nMax,
+                           bool clipToMinMax)
 {
+    if (coord < 0)
+        return clipToMinMax && (nMax > 0) ? 0 : -1;
+
     if (!defaultDist)
         defaultDist = 1;
-    unsigned int i_max = coord / defaultDist,
-                 i_min = 0;
+
+    size_t i_max = coord / defaultDist,
+           i_min = 0;
+
     if (BorderArray.IsEmpty())
     {
-        return i_max;
+        if ((int) i_max < nMax)
+            return i_max;
+        return clipToMinMax ? nMax - 1 : -1;
     }
 
     if ( i_max >= BorderArray.GetCount())
+    {
         i_max = BorderArray.GetCount() - 1;
-    else 
+    }
+    else
     {
         if ( coord >= BorderArray[i_max])
         {
             i_min = i_max;
-            i_max = coord / minDist;
+            if (minDist)
+                i_max = coord / minDist;
+            else
+                i_max =  BorderArray.GetCount() - 1;
         }
+
         if ( i_max >= BorderArray.GetCount())
             i_max = BorderArray.GetCount() - 1;
     }
-    if ( coord > BorderArray[i_max])    
-        return -1;
 
-    while ( i_max - i_min > 1 )
+    if ( coord >= BorderArray[i_max])
+        return clipToMinMax ? (int)i_max : -1;
+    if ( coord < BorderArray[0] )
+        return 0;
+
+    while ( i_max - i_min > 0 )
     {
         wxCHECK_MSG(BorderArray[i_min] <= coord && coord < BorderArray[i_max],
-                    -1, _T("wxGrid: internal error in CoordToRowOrCol"));
+                    0, _T("wxGrid: internal error in CoordToRowOrCol"));
         if (coord >=  BorderArray[ i_max - 1])
-        {
             return i_max;
-        }
         else
             i_max--;
         int median = i_min + (i_max - i_min + 1) / 2;
@@ -6876,87 +8415,154 @@ static int CoordToRowOrCol(int coord, int defaultDist, int minDist,
         else
             i_min = median;
     }
+
     return i_max;
 }
 
 int wxGrid::YToRow( int y )
 {
     return CoordToRowOrCol(y, m_defaultRowHeight,
-                           WXGRID_MIN_ROW_HEIGHT, m_rowBottoms);
+                           m_minAcceptableRowHeight, m_rowBottoms, m_numRows, false);
 }
 
-
-int wxGrid::XToCol( int x )
+int wxGrid::XToCol( int x, bool clipToMinMax )
 {
-    return CoordToRowOrCol(x, m_defaultColWidth,
-                           WXGRID_MIN_COL_WIDTH, m_colRights);
-}
+    if (x < 0)
+        return clipToMinMax && (m_numCols > 0) ? GetColAt( 0 ) : -1;
 
+    if (!m_defaultColWidth)
+        m_defaultColWidth = 1;
+
+    int maxPos = x / m_defaultColWidth;
+    int minPos = 0;
+
+    if (m_colRights.IsEmpty())
+    {
+        if(maxPos < m_numCols)
+            return GetColAt( maxPos );
+        return clipToMinMax ? GetColAt( m_numCols - 1 ) : -1;
+    }
+
+    if ( maxPos >= m_numCols)
+        maxPos = m_numCols - 1;
+    else
+    {
+        if ( x >= m_colRights[GetColAt( maxPos )])
+        {
+            minPos = maxPos;
+            if (m_minAcceptableColWidth)
+                maxPos = x / m_minAcceptableColWidth;
+            else
+                maxPos =  m_numCols - 1;
+        }
+        if ( maxPos >= m_numCols)
+            maxPos = m_numCols - 1;
+    }
+
+    //X is beyond the last column
+    if ( x >= m_colRights[GetColAt( maxPos )])
+        return clipToMinMax ? GetColAt( maxPos ) : -1;
+
+    //X is before the first column
+    if ( x < m_colRights[GetColAt( 0 )] )
+        return GetColAt( 0 );
+
+    //Perform a binary search
+    while ( maxPos - minPos > 0 )
+    {
+        wxCHECK_MSG(m_colRights[GetColAt( minPos )] <= x && x < m_colRights[GetColAt( maxPos )],
+                    0, _T("wxGrid: internal error in XToCol"));
+
+        if (x >=  m_colRights[GetColAt( maxPos - 1 )])
+            return GetColAt( maxPos );
+        else
+            maxPos--;
+        int median = minPos + (maxPos - minPos + 1) / 2;
+        if (x < m_colRights[GetColAt( median )])
+            maxPos = median;
+        else
+            minPos = median;
+    }
+    return GetColAt( maxPos );
+}
 
 // return the row number that that the y coord is near the edge of, or
 // -1 if not near an edge
 //
 int wxGrid::YToEdgeOfRow( int y )
 {
-    int i, d;
+    int i;
+    i = internalYToRow(y);
 
-    for ( i = YToRow( y ) - 1;  i < m_numRows;  i++ )
+    if ( GetRowHeight(i) > WXGRID_LABEL_EDGE_ZONE )
     {
-        if ( GetRowHeight(i) > WXGRID_LABEL_EDGE_ZONE )
-        {
-            d = abs( y - GetRowBottom(i) );
-            if ( d < WXGRID_LABEL_EDGE_ZONE )
-                return i;
-        }
+        // We know that we are in row i, test whether we are
+        // close enough to lower or upper border, respectively.
+        if ( abs(GetRowBottom(i) - y) < WXGRID_LABEL_EDGE_ZONE )
+            return i;
+        else if ( i > 0 && y - GetRowTop(i) < WXGRID_LABEL_EDGE_ZONE )
+            return i - 1;
     }
 
     return -1;
 }
 
-
 // return the col number that that the x coord is near the edge of, or
 // -1 if not near an edge
 //
 int wxGrid::XToEdgeOfCol( int x )
 {
-    int i, d;
+    int i;
+    i = internalXToCol(x);
 
-    for (i = XToCol( x ) - 1;  i < m_numCols;  i++ )
+    if ( GetColWidth(i) > WXGRID_LABEL_EDGE_ZONE )
     {
-        if ( GetColWidth(i) > WXGRID_LABEL_EDGE_ZONE )
-        {
-            d = abs( x - GetColRight(i) );
-            if ( d < WXGRID_LABEL_EDGE_ZONE )
-                return i;
-        }
+        // We know that we are in column i; test whether we are
+        // close enough to right or left border, respectively.
+        if ( abs(GetColRight(i) - x) < WXGRID_LABEL_EDGE_ZONE )
+            return i;
+        else if ( i > 0 && x - GetColLeft(i) < WXGRID_LABEL_EDGE_ZONE )
+            return i - 1;
     }
 
     return -1;
 }
 
-
 wxRect wxGrid::CellToRect( int row, int col )
 {
     wxRect rect( -1, -1, -1, -1 );
 
-    if ( row >= 0  &&  row < m_numRows  &&
-         col >= 0  &&  col < m_numCols )
+    if ( row >= 0 && row < m_numRows &&
+         col >= 0 && col < m_numCols )
     {
+        int i, cell_rows, cell_cols;
+        rect.width = rect.height = 0;
+        GetCellSize( row, col, &cell_rows, &cell_cols );
+        // if negative then find multicell owner
+        if (cell_rows < 0)
+            row += cell_rows;
+        if (cell_cols < 0)
+             col += cell_cols;
+        GetCellSize( row, col, &cell_rows, &cell_cols );
+
         rect.x = GetColLeft(col);
         rect.y = GetRowTop(row);
-        rect.width = GetColWidth(col);
-        rect.height = GetRowHeight(row);
+        for (i=col; i < col + cell_cols; i++)
+            rect.width += GetColWidth(i);
+        for (i=row; i < row + cell_rows; i++)
+            rect.height += GetRowHeight(i);
     }
 
     // if grid lines are enabled, then the area of the cell is a bit smaller
-    if (m_gridLinesEnabled) {
+    if (m_gridLinesEnabled)
+    {
         rect.width -= 1;
         rect.height -= 1;
     }
+
     return rect;
 }
 
-
 bool wxGrid::IsVisible( int row, int col, bool wholeCellVisible )
 {
     // get the cell rectangle in logical coords
@@ -6970,45 +8576,39 @@ bool wxGrid::IsVisible( int row, int col, bool wholeCellVisible )
     CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
 
     // check against the client area of the grid window
-    //
     int cw, ch;
     m_gridWin->GetClientSize( &cw, &ch );
 
     if ( wholeCellVisible )
     {
         // is the cell wholly visible ?
-        //
-        return ( left >= 0  &&  right <= cw  &&
-                 top >= 0  &&  bottom <= ch );
+        return ( left >= 0 && right <= cw &&
+                 top >= 0 && bottom <= ch );
     }
     else
     {
         // is the cell partly visible ?
         //
-        return ( ((left >=0 && left < cw) || (right > 0 && right <= cw))  &&
-                 ((top >=0 && top < ch) || (bottom > 0 && bottom <= ch)) );
+        return ( ((left >= 0 && left < cw) || (right > 0 && right <= cw)) &&
+                 ((top >= 0 && top < ch) || (bottom > 0 && bottom <= ch)) );
     }
 }
 
-
 // make the specified cell location visible by doing a minimal amount
 // of scrolling
 //
 void wxGrid::MakeCellVisible( int row, int col )
 {
-
     int i;
     int xpos = -1, ypos = -1;
 
-    if ( row >= 0  &&  row < m_numRows  &&
-         col >= 0  &&  col < m_numCols )
+    if ( row >= 0 && row < m_numRows &&
+         col >= 0 && col < m_numCols )
     {
         // get the cell rectangle in logical coords
-        //
         wxRect r( CellToRect( row, col ) );
 
         // convert to device coords
-        //
         int left, top, right, bottom;
         CalcScrolledPosition( r.GetLeft(), r.GetTop(), &left, &top );
         CalcScrolledPosition( r.GetRight(), r.GetBottom(), &right, &bottom );
@@ -7024,7 +8624,7 @@ void wxGrid::MakeCellVisible( int row, int col )
         {
             int h = r.GetHeight();
             ypos = r.GetTop();
-            for ( i = row-1;  i >= 0;  i-- )
+            for ( i = row - 1; i >= 0; i-- )
             {
                 int rowHeight = GetRowHeight(i);
                 if ( h + rowHeight > ch )
@@ -7035,59 +8635,55 @@ void wxGrid::MakeCellVisible( int row, int col )
             }
 
             // we divide it later by GRID_SCROLL_LINE, make sure that we don't
-            // have rounding errors (this is important, because if we do, we
-            // might not scroll at all and some cells won't be redrawn)
+            // have rounding errors (this is important, because if we do,
+            // we might not scroll at all and some cells won't be redrawn)
             //
-            // Sometimes GRID_SCROLL_LINE/2 is not enough, so just add a full
-            // scroll unit...
-            ypos += GRID_SCROLL_LINE_Y;
+            // Sometimes GRID_SCROLL_LINE / 2 is not enough,
+            // so just add a full scroll unit...
+            ypos += m_scrollLineY;
         }
 
-        if ( left < 0 )
+        // special handling for wide cells - show always left part of the cell!
+        // Otherwise, e.g. when stepping from row to row, it would jump between
+        // left and right part of the cell on every step!
+//      if ( left < 0 )
+        if ( left < 0 || (right - left) >= cw )
         {
             xpos = r.GetLeft();
         }
         else if ( right > cw )
         {
-            int w = r.GetWidth();
-            xpos = r.GetLeft();
-            for ( i = col-1;  i >= 0;  i-- )
-            {
-                int colWidth = GetColWidth(i);
-                if ( w + colWidth > cw )
-                    break;
-
-                w += colWidth;
-                xpos -= colWidth;
-            }
+            // position the view so that the cell is on the right
+            int x0, y0;
+            CalcUnscrolledPosition(0, 0, &x0, &y0);
+            xpos = x0 + (right - cw);
 
             // see comment for ypos above
-            xpos += GRID_SCROLL_LINE_X;
+            xpos += m_scrollLineX;
         }
 
-        if ( xpos != -1  ||  ypos != -1 )
+        if ( xpos != -1 || ypos != -1 )
         {
             if ( xpos != -1 )
-                xpos /= GRID_SCROLL_LINE_X;
+                xpos /= m_scrollLineX;
             if ( ypos != -1 )
-                ypos /= GRID_SCROLL_LINE_Y;
+                ypos /= m_scrollLineY;
             Scroll( xpos, ypos );
             AdjustScrollbars();
         }
     }
 }
 
-
 //
 // ------ Grid cursor movement functions
 //
 
 bool wxGrid::MoveCursorUp( bool expandSelection )
 {
-    if ( m_currentCellCoords != wxGridNoCellCoords  &&
+    if ( m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetRow() >= 0 )
     {
-        if ( expandSelection)
+        if ( expandSelection )
         {
             if ( m_selectingKeyboard == wxGridNoCellCoords )
                 m_selectingKeyboard = m_currentCellCoords;
@@ -7101,31 +8697,31 @@ bool wxGrid::MoveCursorUp( bool expandSelection )
         }
         else if ( m_currentCellCoords.GetRow() > 0 )
         {
+            int row = m_currentCellCoords.GetRow() - 1;
+            int col = m_currentCellCoords.GetCol();
             ClearSelection();
-            MakeCellVisible( m_currentCellCoords.GetRow() - 1,
-                             m_currentCellCoords.GetCol() );
-            SetCurrentCell( m_currentCellCoords.GetRow() - 1,
-                            m_currentCellCoords.GetCol() );
+            MakeCellVisible( row, col );
+            SetCurrentCell( row, col );
         }
         else
-            return FALSE;
-        return TRUE;
+            return false;
+
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
 bool wxGrid::MoveCursorDown( bool expandSelection )
 {
-    if ( m_currentCellCoords != wxGridNoCellCoords  &&
+    if ( m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetRow() < m_numRows )
     {
         if ( expandSelection )
         {
             if ( m_selectingKeyboard == wxGridNoCellCoords )
                 m_selectingKeyboard = m_currentCellCoords;
-            if ( m_selectingKeyboard.GetRow() < m_numRows-1 )
+            if ( m_selectingKeyboard.GetRow() < m_numRows - 1 )
             {
                 m_selectingKeyboard.SetRow( m_selectingKeyboard.GetRow() + 1 );
                 MakeCellVisible( m_selectingKeyboard.GetRow(),
@@ -7135,24 +8731,24 @@ bool wxGrid::MoveCursorDown( bool expandSelection )
         }
         else if ( m_currentCellCoords.GetRow() < m_numRows - 1 )
         {
+            int row = m_currentCellCoords.GetRow() + 1;
+            int col = m_currentCellCoords.GetCol();
             ClearSelection();
-            MakeCellVisible( m_currentCellCoords.GetRow() + 1,
-                             m_currentCellCoords.GetCol() );
-            SetCurrentCell( m_currentCellCoords.GetRow() + 1,
-                            m_currentCellCoords.GetCol() );
+            MakeCellVisible( row, col );
+            SetCurrentCell( row, col );
         }
         else
-            return FALSE;
-        return TRUE;
+            return false;
+
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
 bool wxGrid::MoveCursorLeft( bool expandSelection )
 {
-    if ( m_currentCellCoords != wxGridNoCellCoords  &&
+    if ( m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetCol() >= 0 )
     {
         if ( expandSelection )
@@ -7167,26 +8763,27 @@ bool wxGrid::MoveCursorLeft( bool expandSelection )
                 HighlightBlock( m_currentCellCoords, m_selectingKeyboard );
             }
         }
-        else if ( m_currentCellCoords.GetCol() > 0 )
+        else if ( GetColPos( m_currentCellCoords.GetCol() ) > 0 )
         {
+            int row = m_currentCellCoords.GetRow();
+            int col = GetColAt( GetColPos( m_currentCellCoords.GetCol() ) - 1 );
             ClearSelection();
-            MakeCellVisible( m_currentCellCoords.GetRow(),
-                             m_currentCellCoords.GetCol() - 1 );
-            SetCurrentCell( m_currentCellCoords.GetRow(),
-                            m_currentCellCoords.GetCol() - 1 );
+
+            MakeCellVisible( row, col );
+            SetCurrentCell( row, col );
         }
         else
-            return FALSE;
-        return TRUE;
+            return false;
+
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
 bool wxGrid::MoveCursorRight( bool expandSelection )
 {
-    if ( m_currentCellCoords != wxGridNoCellCoords  &&
+    if ( m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetCol() < m_numCols )
     {
         if ( expandSelection )
@@ -7201,26 +8798,28 @@ bool wxGrid::MoveCursorRight( bool expandSelection )
                 HighlightBlock( m_currentCellCoords, m_selectingKeyboard );
             }
         }
-        else if ( m_currentCellCoords.GetCol() < m_numCols - 1 )
+        else if ( GetColPos( m_currentCellCoords.GetCol() ) < m_numCols - 1 )
         {
+            int row = m_currentCellCoords.GetRow();
+            int col = GetColAt( GetColPos( m_currentCellCoords.GetCol() ) + 1 );
             ClearSelection();
-            MakeCellVisible( m_currentCellCoords.GetRow(),
-                             m_currentCellCoords.GetCol() + 1 );
-            SetCurrentCell( m_currentCellCoords.GetRow(),
-                            m_currentCellCoords.GetCol() + 1 );
+
+            MakeCellVisible( row, col );
+            SetCurrentCell( row, col );
         }
         else
-            return FALSE;
-        return TRUE;
+            return false;
+
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
 bool wxGrid::MovePageUp()
 {
-    if ( m_currentCellCoords == wxGridNoCellCoords ) return FALSE;
+    if ( m_currentCellCoords == wxGridNoCellCoords )
+        return false;
 
     int row = m_currentCellCoords.GetRow();
     if ( row > 0 )
@@ -7229,59 +8828,55 @@ bool wxGrid::MovePageUp()
         m_gridWin->GetClientSize( &cw, &ch );
 
         int y = GetRowTop(row);
-        int newRow = YToRow( y - ch + 1 );
-        if ( newRow == -1 )
-        {
-            newRow = 0;
-        }
-        else if ( newRow == row )
+        int newRow = internalYToRow( y - ch + 1 );
+
+        if ( newRow == row )
         {
+            // row > 0, so newRow can never be less than 0 here.
             newRow = row - 1;
         }
 
         MakeCellVisible( newRow, m_currentCellCoords.GetCol() );
         SetCurrentCell( newRow, m_currentCellCoords.GetCol() );
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxGrid::MovePageDown()
 {
-    if ( m_currentCellCoords == wxGridNoCellCoords ) return FALSE;
+    if ( m_currentCellCoords == wxGridNoCellCoords )
+        return false;
 
     int row = m_currentCellCoords.GetRow();
-    if ( row < m_numRows )
+    if ( (row + 1) < m_numRows )
     {
         int cw, ch;
         m_gridWin->GetClientSize( &cw, &ch );
 
         int y = GetRowTop(row);
-        int newRow = YToRow( y + ch );
-        if ( newRow == -1 )
-        {
-            newRow = m_numRows - 1;
-        }
-        else if ( newRow == row )
+        int newRow = internalYToRow( y + ch );
+        if ( newRow == row )
         {
+            // row < m_numRows, so newRow can't overflow here.
             newRow = row + 1;
         }
 
         MakeCellVisible( newRow, m_currentCellCoords.GetCol() );
         SetCurrentCell( newRow, m_currentCellCoords.GetCol() );
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxGrid::MoveCursorUpBlock( bool expandSelection )
 {
     if ( m_table &&
-         m_currentCellCoords != wxGridNoCellCoords  &&
+         m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetRow() > 0 )
     {
         int row = m_currentCellCoords.GetRow();
@@ -7294,19 +8889,21 @@ bool wxGrid::MoveCursorUpBlock( bool expandSelection )
             //
             while ( row > 0 )
             {
-                row-- ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                row--;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
-        else if ( m_table->IsEmptyCell(row-1, col) )
+        else if ( m_table->IsEmptyCell(row - 1, col) )
         {
             // starting at the top of a block: find the next block
             //
             row--;
             while ( row > 0 )
             {
-                row-- ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                row--;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
         else
@@ -7315,10 +8912,10 @@ bool wxGrid::MoveCursorUpBlock( bool expandSelection )
             //
             while ( row > 0 )
             {
-                row-- ;
+                row--;
                 if ( m_table->IsEmptyCell(row, col) )
                 {
-                    row++ ;
+                    row++;
                     break;
                 }
             }
@@ -7335,17 +8932,18 @@ bool wxGrid::MoveCursorUpBlock( bool expandSelection )
             ClearSelection();
             SetCurrentCell( row, col );
         }
-        return TRUE;
+
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxGrid::MoveCursorDownBlock( bool expandSelection )
 {
     if ( m_table &&
-         m_currentCellCoords != wxGridNoCellCoords  &&
-         m_currentCellCoords.GetRow() < m_numRows-1 )
+         m_currentCellCoords != wxGridNoCellCoords &&
+         m_currentCellCoords.GetRow() < m_numRows - 1 )
     {
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
@@ -7355,33 +8953,35 @@ bool wxGrid::MoveCursorDownBlock( bool expandSelection )
             // starting in an empty cell: find the next block of
             // non-empty cells
             //
-            while ( row < m_numRows-1 )
+            while ( row < m_numRows - 1 )
             {
-                row++ ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                row++;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
-        else if ( m_table->IsEmptyCell(row+1, col) )
+        else if ( m_table->IsEmptyCell(row + 1, col) )
         {
             // starting at the bottom of a block: find the next block
             //
             row++;
-            while ( row < m_numRows-1 )
+            while ( row < m_numRows - 1 )
             {
-                row++ ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                row++;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
         else
         {
             // starting within a block: find the bottom of the block
             //
-            while ( row < m_numRows-1 )
+            while ( row < m_numRows - 1 )
             {
-                row++ ;
+                row++;
                 if ( m_table->IsEmptyCell(row, col) )
                 {
-                    row-- ;
+                    row--;
                     break;
                 }
             }
@@ -7399,16 +8999,16 @@ bool wxGrid::MoveCursorDownBlock( bool expandSelection )
             SetCurrentCell( row, col );
         }
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
 {
     if ( m_table &&
-         m_currentCellCoords != wxGridNoCellCoords  &&
+         m_currentCellCoords != wxGridNoCellCoords &&
          m_currentCellCoords.GetCol() > 0 )
     {
         int row = m_currentCellCoords.GetRow();
@@ -7421,19 +9021,21 @@ bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
             //
             while ( col > 0 )
             {
-                col-- ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                col--;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
-        else if ( m_table->IsEmptyCell(row, col-1) )
+        else if ( m_table->IsEmptyCell(row, col - 1) )
         {
             // starting at the left of a block: find the next block
             //
             col--;
             while ( col > 0 )
             {
-                col-- ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                col--;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
         else
@@ -7442,10 +9044,10 @@ bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
             //
             while ( col > 0 )
             {
-                col-- ;
+                col--;
                 if ( m_table->IsEmptyCell(row, col) )
                 {
-                    col++ ;
+                    col++;
                     break;
                 }
             }
@@ -7463,17 +9065,17 @@ bool wxGrid::MoveCursorLeftBlock( bool expandSelection )
             SetCurrentCell( row, col );
         }
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
 bool wxGrid::MoveCursorRightBlock( bool expandSelection )
 {
     if ( m_table &&
-         m_currentCellCoords != wxGridNoCellCoords  &&
-         m_currentCellCoords.GetCol() < m_numCols-1 )
+         m_currentCellCoords != wxGridNoCellCoords &&
+         m_currentCellCoords.GetCol() < m_numCols - 1 )
     {
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
@@ -7483,33 +9085,35 @@ bool wxGrid::MoveCursorRightBlock( bool expandSelection )
             // starting in an empty cell: find the next block of
             // non-empty cells
             //
-            while ( col < m_numCols-1 )
+            while ( col < m_numCols - 1 )
             {
-                col++ ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                col++;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
-        else if ( m_table->IsEmptyCell(row, col+1) )
+        else if ( m_table->IsEmptyCell(row, col + 1) )
         {
             // starting at the right of a block: find the next block
             //
             col++;
-            while ( col < m_numCols-1 )
+            while ( col < m_numCols - 1 )
             {
-                col++ ;
-                if ( !(m_table->IsEmptyCell(row, col)) ) break;
+                col++;
+                if ( !(m_table->IsEmptyCell(row, col)) )
+                    break;
             }
         }
         else
         {
             // starting within a block: find the right of the block
             //
-            while ( col < m_numCols-1 )
+            while ( col < m_numCols - 1 )
             {
-                col++ ;
+                col++;
                 if ( m_table->IsEmptyCell(row, col) )
                 {
-                    col-- ;
+                    col--;
                     break;
                 }
             }
@@ -7527,28 +9131,35 @@ bool wxGrid::MoveCursorRightBlock( bool expandSelection )
             SetCurrentCell( row, col );
         }
 
-        return TRUE;
+        return true;
     }
 
-    return FALSE;
+    return false;
 }
 
-
-
 //
 // ------ Label values and formatting
 //
 
 void wxGrid::GetRowLabelAlignment( int *horiz, int *vert )
 {
-    *horiz = m_rowLabelHorizAlign;
-    *vert  = m_rowLabelVertAlign;
+    if ( horiz )
+        *horiz = m_rowLabelHorizAlign;
+    if ( vert )
+        *vert  = m_rowLabelVertAlign;
 }
 
 void wxGrid::GetColLabelAlignment( int *horiz, int *vert )
 {
-    *horiz = m_colLabelHorizAlign;
-    *vert  = m_colLabelVertAlign;
+    if ( horiz )
+        *horiz = m_colLabelHorizAlign;
+    if ( vert )
+        *vert  = m_colLabelVertAlign;
+}
+
+int wxGrid::GetColLabelTextOrientation()
+{
+    return m_colLabelTextOrientation;
 }
 
 wxString wxGrid::GetRowLabelValue( int row )
@@ -7579,7 +9190,6 @@ wxString wxGrid::GetColLabelValue( int col )
     }
 }
 
-
 void wxGrid::SetRowLabelSize( int width )
 {
     width = wxMax( width, 0 );
@@ -7587,22 +9197,22 @@ void wxGrid::SetRowLabelSize( int width )
     {
         if ( width == 0 )
         {
-            m_rowLabelWin->Show( FALSE );
-            m_cornerLabelWin->Show( FALSE );
+            m_rowLabelWin->Show( false );
+            m_cornerLabelWin->Show( false );
         }
         else if ( m_rowLabelWidth == 0 )
         {
-            m_rowLabelWin->Show( TRUE );
-            if ( m_colLabelHeight > 0 ) m_cornerLabelWin->Show( TRUE );
+            m_rowLabelWin->Show( true );
+            if ( m_colLabelHeight > 0 )
+                m_cornerLabelWin->Show( true );
         }
 
         m_rowLabelWidth = width;
         CalcWindowSizes();
-        Refresh( TRUE );
+        wxScrolledWindow::Refresh( true );
     }
 }
 
-
 void wxGrid::SetColLabelSize( int height )
 {
     height = wxMax( height, 0 );
@@ -7610,22 +9220,22 @@ void wxGrid::SetColLabelSize( int height )
     {
         if ( height == 0 )
         {
-            m_colLabelWin->Show( FALSE );
-            m_cornerLabelWin->Show( FALSE );
+            m_colLabelWin->Show( false );
+            m_cornerLabelWin->Show( false );
         }
         else if ( m_colLabelHeight == 0 )
         {
-            m_colLabelWin->Show( TRUE );
-            if ( m_rowLabelWidth > 0 ) m_cornerLabelWin->Show( TRUE );
+            m_colLabelWin->Show( true );
+            if ( m_rowLabelWidth > 0 )
+                m_cornerLabelWin->Show( true );
         }
 
         m_colLabelHeight = height;
         CalcWindowSizes();
-        Refresh( TRUE );
+        wxScrolledWindow::Refresh( true );
     }
 }
 
-
 void wxGrid::SetLabelBackgroundColour( const wxColour& colour )
 {
     if ( m_labelBackgroundColour != colour )
@@ -7728,9 +9338,25 @@ void wxGrid::SetColLabelAlignment( int horiz, int vert )
     }
 
     if ( !GetBatchCount() )
-    {
+    {
+        m_colLabelWin->Refresh();
+    }
+}
+
+// Note: under MSW, the default column label font must be changed because it
+//       does not support vertical printing
+//
+// Example: wxFont font(9, wxSWISS, wxNORMAL, wxBOLD);
+//                      pGrid->SetLabelFont(font);
+//                      pGrid->SetColLabelTextOrientation(wxVERTICAL);
+//
+void wxGrid::SetColLabelTextOrientation( int textOrientation )
+{
+    if ( textOrientation == wxHORIZONTAL || textOrientation == wxVERTICAL )
+        m_colLabelTextOrientation = textOrientation;
+
+    if ( !GetBatchCount() )
         m_colLabelWin->Refresh();
-    }
 }
 
 void wxGrid::SetRowLabelValue( int row, const wxString& s )
@@ -7740,13 +9366,13 @@ void wxGrid::SetRowLabelValue( int row, const wxString& s )
         m_table->SetRowLabelValue( row, s );
         if ( !GetBatchCount() )
         {
-            wxRect rect = CellToRect( row, 0);
+            wxRect rect = CellToRect( row, 0 );
             if ( rect.height > 0 )
             {
                 CalcScrolledPosition(0, rect.y, &rect.x, &rect.y);
                 rect.x = 0;
                 rect.width = m_rowLabelWidth;
-                m_rowLabelWin->Refresh( TRUE, &rect );
+                m_rowLabelWin->Refresh( true, &rect );
             }
         }
     }
@@ -7765,7 +9391,7 @@ void wxGrid::SetColLabelValue( int col, const wxString& s )
                 CalcScrolledPosition(rect.x, 0, &rect.x, &rect.y);
                 rect.y = 0;
                 rect.height = m_colLabelHeight;
-                m_colLabelWin->Refresh( TRUE, &rect );
+                m_colLabelWin->Refresh( true, &rect );
             }
         }
     }
@@ -7783,7 +9409,6 @@ void wxGrid::SetGridLineColour( const wxColour& colour )
     }
 }
 
-
 void wxGrid::SetCellHighlightColour( const wxColour& colour )
 {
     if ( m_cellHighlightColour != colour )
@@ -7800,7 +9425,8 @@ void wxGrid::SetCellHighlightColour( const wxColour& colour )
 
 void wxGrid::SetCellHighlightPenWidth(int width)
 {
-    if (m_cellHighlightPenWidth != width) {
+    if (m_cellHighlightPenWidth != width)
+    {
         m_cellHighlightPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't
@@ -7809,14 +9435,16 @@ void wxGrid::SetCellHighlightPenWidth(int width)
         int col = m_currentCellCoords.GetCol();
         if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
             return;
+
         wxRect rect = CellToRect(row, col);
-        m_gridWin->Refresh(TRUE, &rect);
+        m_gridWin->Refresh(true, &rect);
     }
 }
 
 void wxGrid::SetCellHighlightROPenWidth(int width)
 {
-    if (m_cellHighlightROPenWidth != width) {
+    if (m_cellHighlightROPenWidth != width)
+    {
         m_cellHighlightROPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't
@@ -7825,8 +9453,9 @@ void wxGrid::SetCellHighlightROPenWidth(int width)
         int col = m_currentCellCoords.GetCol();
         if ( GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
             return;
+
         wxRect rect = CellToRect(row, col);
-        m_gridWin->Refresh(TRUE, &rect);
+        m_gridWin->Refresh(true, &rect);
     }
 }
 
@@ -7852,7 +9481,6 @@ void wxGrid::EnableGridLines( bool enable )
     }
 }
 
-
 int wxGrid::GetDefaultRowSize()
 {
     return m_defaultRowHeight;
@@ -7904,19 +9532,33 @@ void wxGrid::SetDefaultCellAlignment( int horiz, int vert )
     m_defaultCellAttr->SetAlignment(horiz, vert);
 }
 
+void wxGrid::SetDefaultCellOverflow( bool allow )
+{
+    m_defaultCellAttr->SetOverflow(allow);
+}
+
 void wxGrid::SetDefaultCellFont( const wxFont& font )
 {
     m_defaultCellAttr->SetFont(font);
 }
 
+// For editors and renderers the type registry takes precedence over the
+// default attr, so we need to register the new editor/renderer for the string
+// data type in order to make setting a default editor/renderer appear to
+// work correctly.
+
 void wxGrid::SetDefaultRenderer(wxGridCellRenderer *renderer)
 {
-    m_defaultCellAttr->SetRenderer(renderer);
+    RegisterDataType(wxGRID_VALUE_STRING,
+                     renderer,
+                     GetDefaultEditorForType(wxGRID_VALUE_STRING));
 }
 
 void wxGrid::SetDefaultEditor(wxGridCellEditor *editor)
 {
-    m_defaultCellAttr->SetEditor(editor);
+    RegisterDataType(wxGRID_VALUE_STRING,
+                     GetDefaultRendererForType(wxGRID_VALUE_STRING),
+                     editor);
 }
 
 // ----------------------------------------------------------------------------
@@ -7943,6 +9585,11 @@ void wxGrid::GetDefaultCellAlignment( int *horiz, int *vert )
     m_defaultCellAttr->GetAlignment(horiz, vert);
 }
 
+bool wxGrid::GetDefaultCellOverflow()
+{
+    return m_defaultCellAttr->GetOverflow();
+}
+
 wxGridCellRenderer *wxGrid::GetDefaultRenderer() const
 {
     return m_defaultCellAttr->GetRenderer(NULL, 0, 0);
@@ -7950,7 +9597,7 @@ wxGridCellRenderer *wxGrid::GetDefaultRenderer() const
 
 wxGridCellEditor *wxGrid::GetDefaultEditor() const
 {
-    return m_defaultCellAttr->GetEditor(NULL,0,0);
+    return m_defaultCellAttr->GetEditor(NULL, 0, 0);
 }
 
 // ----------------------------------------------------------------------------
@@ -7962,6 +9609,7 @@ wxColour wxGrid::GetCellBackgroundColour(int row, int col)
     wxGridCellAttr *attr = GetCellAttr(row, col);
     wxColour colour = attr->GetBackgroundColour();
     attr->DecRef();
+
     return colour;
 }
 
@@ -7970,6 +9618,7 @@ wxColour wxGrid::GetCellTextColour( int row, int col )
     wxGridCellAttr *attr = GetCellAttr(row, col);
     wxColour colour = attr->GetTextColour();
     attr->DecRef();
+
     return colour;
 }
 
@@ -7978,6 +9627,7 @@ wxFont wxGrid::GetCellFont( int row, int col )
     wxGridCellAttr *attr = GetCellAttr(row, col);
     wxFont font = attr->GetFont();
     attr->DecRef();
+
     return font;
 }
 
@@ -7988,6 +9638,22 @@ void wxGrid::GetCellAlignment( int row, int col, int *horiz, int *vert )
     attr->DecRef();
 }
 
+bool wxGrid::GetCellOverflow( int row, int col )
+{
+    wxGridCellAttr *attr = GetCellAttr(row, col);
+    bool allow = attr->GetOverflow();
+    attr->DecRef();
+
+    return allow;
+}
+
+void wxGrid::GetCellSize( int row, int col, int *num_rows, int *num_cols )
+{
+    wxGridCellAttr *attr = GetCellAttr(row, col);
+    attr->GetSize( num_rows, num_cols );
+    attr->DecRef();
+}
+
 wxGridCellRenderer* wxGrid::GetCellRenderer(int row, int col)
 {
     wxGridCellAttr* attr = GetCellAttr(row, col);
@@ -8011,6 +9677,7 @@ bool wxGrid::IsReadOnly(int row, int col) const
     wxGridCellAttr* attr = GetCellAttr(row, col);
     bool isReadOnly = attr->IsReadOnly();
     attr->DecRef();
+
     return isReadOnly;
 }
 
@@ -8022,7 +9689,7 @@ bool wxGrid::CanHaveAttributes()
 {
     if ( !m_table )
     {
-        return FALSE;
+        return false;
     }
 
     return m_table->CanHaveAttributes();
@@ -8040,13 +9707,16 @@ void wxGrid::ClearAttrCache()
 
 void wxGrid::CacheAttr(int row, int col, wxGridCellAttr *attr) const
 {
-    wxGrid *self = (wxGrid *)this;  // const_cast
+    if ( attr != NULL )
+    {
+        wxGrid *self = (wxGrid *)this;  // const_cast
 
-    self->ClearAttrCache();
-    self->m_attrCache.row = row;
-    self->m_attrCache.col = col;
-    self->m_attrCache.attr = attr;
-    wxSafeIncRef(attr);
+        self->ClearAttrCache();
+        self->m_attrCache.row = row;
+        self->m_attrCache.col = col;
+        self->m_attrCache.attr = attr;
+        wxSafeIncRef(attr);
+    }
 }
 
 bool wxGrid::LookupAttr(int row, int col, wxGridCellAttr **attr) const
@@ -8060,25 +9730,33 @@ bool wxGrid::LookupAttr(int row, int col, wxGridCellAttr **attr) const
         gs_nAttrCacheHits++;
 #endif
 
-        return TRUE;
+        return true;
     }
     else
     {
 #ifdef DEBUG_ATTR_CACHE
         gs_nAttrCacheMisses++;
 #endif
-        return FALSE;
+
+        return false;
     }
 }
 
 wxGridCellAttr *wxGrid::GetCellAttr(int row, int col) const
 {
-    wxGridCellAttr *attr;
-    if ( !LookupAttr(row, col, &attr) )
+    wxGridCellAttr *attr = NULL;
+    // Additional test to avoid looking at the cache e.g. for
+    // wxNoCellCoords, as this will confuse memory management.
+    if ( row >= 0 )
     {
-        attr = m_table ? m_table->GetAttr(row, col , wxGridCellAttr::Any) : (wxGridCellAttr *)NULL;
-        CacheAttr(row, col, attr);
+        if ( !LookupAttr(row, col, &attr) )
+        {
+            attr = m_table ? m_table->GetAttr(row, col, wxGridCellAttr::Any)
+                           : (wxGridCellAttr *)NULL;
+            CacheAttr(row, col, attr);
+        }
     }
+
     if (attr)
     {
         attr->SetDefAttr(m_defaultCellAttr);
@@ -8095,9 +9773,10 @@ wxGridCellAttr *wxGrid::GetCellAttr(int row, int col) const
 wxGridCellAttr *wxGrid::GetOrCreateCellAttr(int row, int col) const
 {
     wxGridCellAttr *attr = (wxGridCellAttr *)NULL;
+    bool canHave = ((wxGrid*)this)->CanHaveAttributes();
 
-    wxCHECK_MSG( m_table, attr,
-                  _T("we may only be called if CanHaveAttributes() returned TRUE and then m_table should be !NULL") );
+    wxCHECK_MSG( canHave, attr, _T("Cell attributes not allowed"));
+    wxCHECK_MSG( m_table, attr, _T("must have a table") );
 
     attr = m_table->GetAttr(row, col, wxGridCellAttr::Cell);
     if ( !attr )
@@ -8139,10 +9818,8 @@ void wxGrid::SetColFormatFloat(int col, int width, int precision)
 
 void wxGrid::SetColFormatCustom(int col, const wxString& typeName)
 {
-    wxGridCellAttr *attr = (wxGridCellAttr *)NULL;
-
-    attr = m_table->GetAttr(-1, col, wxGridCellAttr::Col );
-    if(!attr)
+    wxGridCellAttr *attr = m_table->GetAttr(-1, col, wxGridCellAttr::Col );
+    if (!attr)
         attr = new wxGridCellAttr;
     wxGridCellRenderer *renderer = GetDefaultRendererForType(typeName);
     attr->SetRenderer(renderer);
@@ -8155,6 +9832,19 @@ void wxGrid::SetColFormatCustom(int col, const wxString& typeName)
 // setting cell attributes: this is forwarded to the table
 // ----------------------------------------------------------------------------
 
+void wxGrid::SetAttr(int row, int col, wxGridCellAttr *attr)
+{
+    if ( CanHaveAttributes() )
+    {
+        m_table->SetAttr(attr, row, col);
+        ClearAttrCache();
+    }
+    else
+    {
+        wxSafeDecRef(attr);
+    }
+}
+
 void wxGrid::SetRowAttr(int row, wxGridCellAttr *attr)
 {
     if ( CanHaveAttributes() )
@@ -8221,6 +9911,75 @@ void wxGrid::SetCellAlignment( int row, int col, int horiz, int vert )
     }
 }
 
+void wxGrid::SetCellOverflow( int row, int col, bool allow )
+{
+    if ( CanHaveAttributes() )
+    {
+        wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
+        attr->SetOverflow(allow);
+        attr->DecRef();
+    }
+}
+
+void wxGrid::SetCellSize( int row, int col, int num_rows, int num_cols )
+{
+    if ( CanHaveAttributes() )
+    {
+        int cell_rows, cell_cols;
+
+        wxGridCellAttr *attr = GetOrCreateCellAttr(row, col);
+        attr->GetSize(&cell_rows, &cell_cols);
+        attr->SetSize(num_rows, num_cols);
+        attr->DecRef();
+
+        // Cannot set the size of a cell to 0 or negative values
+        // While it is perfectly legal to do that, this function cannot
+        // handle all the possibilies, do it by hand by getting the CellAttr.
+        // You can only set the size of a cell to 1,1 or greater with this fn
+        wxASSERT_MSG( !((cell_rows < 1) || (cell_cols < 1)),
+                      wxT("wxGrid::SetCellSize setting cell size that is already part of another cell"));
+        wxASSERT_MSG( !((num_rows < 1) || (num_cols < 1)),
+                      wxT("wxGrid::SetCellSize setting cell size to < 1"));
+
+        // if this was already a multicell then "turn off" the other cells first
+        if ((cell_rows > 1) || (cell_rows > 1))
+        {
+            int i, j;
+            for (j=row; j < row + cell_rows; j++)
+            {
+                for (i=col; i < col + cell_cols; i++)
+                {
+                    if ((i != col) || (j != row))
+                    {
+                        wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
+                        attr_stub->SetSize( 1, 1 );
+                        attr_stub->DecRef();
+                    }
+                }
+            }
+        }
+
+        // mark the cells that will be covered by this cell to
+        // negative or zero values to point back at this cell
+        if (((num_rows > 1) || (num_cols > 1)) && (num_rows >= 1) && (num_cols >= 1))
+        {
+            int i, j;
+            for (j=row; j < row + num_rows; j++)
+            {
+                for (i=col; i < col + num_cols; i++)
+                {
+                    if ((i != col) || (j != row))
+                    {
+                        wxGridCellAttr *attr_stub = GetOrCreateCellAttr(j, i);
+                        attr_stub->SetSize( row - j, col - i );
+                        attr_stub->DecRef();
+                    }
+                }
+            }
+        }
+    }
+}
+
 void wxGrid::SetCellRenderer(int row, int col, wxGridCellRenderer *renderer)
 {
     if ( CanHaveAttributes() )
@@ -8263,25 +10022,27 @@ void wxGrid::RegisterDataType(const wxString& typeName,
 }
 
 
-wxGridCellEditor* wxGrid::GetDefaultEditorForCell(int row, int col) const
+wxGridCellEditor * wxGrid::GetDefaultEditorForCell(int row, int col) const
 {
     wxString typeName = m_table->GetTypeName(row, col);
     return GetDefaultEditorForType(typeName);
 }
 
-wxGridCellRenderer* wxGrid::GetDefaultRendererForCell(int row, int col) const
+wxGridCellRenderer * wxGrid::GetDefaultRendererForCell(int row, int col) const
 {
     wxString typeName = m_table->GetTypeName(row, col);
     return GetDefaultRendererForType(typeName);
 }
 
-wxGridCellEditor*
-wxGrid::GetDefaultEditorForType(const wxString& typeName) const
+wxGridCellEditor * wxGrid::GetDefaultEditorForType(const wxString& typeName) const
 {
     int index = m_typeRegistry->FindOrCloneDataType(typeName);
     if ( index == wxNOT_FOUND )
     {
-        wxFAIL_MSG(wxT("Unknown data type name"));
+        wxString errStr;
+
+        errStr.Printf(wxT("Unknown data type name [%s]"), typeName.c_str());
+        wxFAIL_MSG(errStr.c_str());
 
         return NULL;
     }
@@ -8289,13 +10050,15 @@ wxGrid::GetDefaultEditorForType(const wxString& typeName) const
     return m_typeRegistry->GetEditor(index);
 }
 
-wxGridCellRenderer*
-wxGrid::GetDefaultRendererForType(const wxString& typeName) const
+wxGridCellRenderer * wxGrid::GetDefaultRendererForType(const wxString& typeName) const
 {
     int index = m_typeRegistry->FindOrCloneDataType(typeName);
     if ( index == wxNOT_FOUND )
     {
-        wxFAIL_MSG(wxT("Unknown data type name"));
+        wxString errStr;
+
+        errStr.Printf(wxT("Unknown data type name [%s]"), typeName.c_str());
+        wxFAIL_MSG(errStr.c_str());
 
         return NULL;
     }
@@ -8303,7 +10066,6 @@ wxGrid::GetDefaultRendererForType(const wxString& typeName) const
     return m_typeRegistry->GetRenderer(index);
 }
 
-
 // ----------------------------------------------------------------------------
 // row/col size
 // ----------------------------------------------------------------------------
@@ -8313,7 +10075,6 @@ void wxGrid::EnableDragRowSize( bool enable )
     m_canDragRowSize = enable;
 }
 
-
 void wxGrid::EnableDragColSize( bool enable )
 {
     m_canDragColSize = enable;
@@ -8324,10 +10085,14 @@ void wxGrid::EnableDragGridSize( bool enable )
     m_canDragGridSize = enable;
 }
 
+void wxGrid::EnableDragCell( bool enable )
+{
+    m_canDragCell = enable;
+}
 
 void wxGrid::SetDefaultRowSize( int height, bool resizeExistingRows )
 {
-    m_defaultRowHeight = wxMax( height, WXGRID_MIN_ROW_HEIGHT );
+    m_defaultRowHeight = wxMax( height, m_minAcceptableRowHeight );
 
     if ( resizeExistingRows )
     {
@@ -8346,6 +10111,10 @@ void wxGrid::SetRowSize( int row, int height )
 {
     wxCHECK_RET( row >= 0 && row < m_numRows, _T("invalid row index") );
 
+    // See comment in SetColSize
+    if ( height < GetRowMinimalAcceptableHeight())
+        return;
+
     if ( m_rowHeights.IsEmpty() )
     {
         // need to really create the array
@@ -8357,17 +10126,18 @@ void wxGrid::SetRowSize( int row, int height )
 
     m_rowHeights[row] = h;
     int i;
-    for ( i = row;  i < m_numRows;  i++ )
+    for ( i = row; i < m_numRows; i++ )
     {
         m_rowBottoms[i] += diff;
     }
+
     if ( !GetBatchCount() )
         CalcDimensions();
 }
 
 void wxGrid::SetDefaultColSize( int width, bool resizeExistingCols )
 {
-    m_defaultColWidth = wxMax( width, WXGRID_MIN_COL_WIDTH );
+    m_defaultColWidth = wxMax( width, m_minAcceptableColWidth );
 
     if ( resizeExistingCols )
     {
@@ -8387,6 +10157,15 @@ void wxGrid::SetColSize( int col, int width )
     wxCHECK_RET( col >= 0 && col < m_numCols, _T("invalid column index") );
 
     // should we check that it's bigger than GetColMinimalWidth(col) here?
+    //                                                                 (VZ)
+    // No, because it is reasonable to assume the library user know's
+    // what he is doing. However we should test against the weaker
+    // constraint of minimalAcceptableWidth, as this breaks rendering
+    //
+    // This test then fixes sf.net bug #645734
+
+    if ( width < GetColMinimalAcceptableWidth() )
+        return;
 
     if ( m_colWidths.IsEmpty() )
     {
@@ -8394,40 +10173,92 @@ void wxGrid::SetColSize( int col, int width )
         InitColWidths();
     }
 
+    // if < 0 then calculate new width from label
+    if ( width < 0 )
+    {
+        long w, h;
+        wxArrayString lines;
+        wxClientDC dc(m_colLabelWin);
+        dc.SetFont(GetLabelFont());
+        StringToLines(GetColLabelValue(col), lines);
+        GetTextBoxSize(dc, lines, &w, &h);
+        width = w + 6;
+    }
+
     int w = wxMax( 0, width );
     int diff = w - m_colWidths[col];
     m_colWidths[col] = w;
 
     int i;
-    for ( i = col;  i < m_numCols;  i++ )
+    int colPos;
+    for ( colPos = GetColPos( col ); colPos < m_numCols; colPos++ )
     {
+        i = GetColAt( colPos );
         m_colRights[i] += diff;
     }
+
     if ( !GetBatchCount() )
         CalcDimensions();
 }
 
-
 void wxGrid::SetColMinimalWidth( int col, int width )
 {
-    m_colMinWidths.Put(col, width);
+    if (width > GetColMinimalAcceptableWidth())
+    {
+        wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
+        m_colMinWidths[key] = width;
+    }
 }
 
 void wxGrid::SetRowMinimalHeight( int row, int width )
 {
-    m_rowMinHeights.Put(row, width);
+    if (width > GetRowMinimalAcceptableHeight())
+    {
+        wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
+        m_rowMinHeights[key] = width;
+    }
 }
 
 int wxGrid::GetColMinimalWidth(int col) const
 {
-    long value = m_colMinWidths.Get(col);
-    return value != wxNOT_FOUND ? (int)value : WXGRID_MIN_COL_WIDTH;
+    wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)col;
+    wxLongToLongHashMap::const_iterator it = m_colMinWidths.find(key);
+
+    return it != m_colMinWidths.end() ? (int)it->second : m_minAcceptableColWidth;
 }
 
 int wxGrid::GetRowMinimalHeight(int row) const
 {
-    long value = m_rowMinHeights.Get(row);
-    return value != wxNOT_FOUND ? (int)value : WXGRID_MIN_ROW_HEIGHT;
+    wxLongToLongHashMap::key_type key = (wxLongToLongHashMap::key_type)row;
+    wxLongToLongHashMap::const_iterator it = m_rowMinHeights.find(key);
+
+    return it != m_rowMinHeights.end() ? (int)it->second : m_minAcceptableRowHeight;
+}
+
+void wxGrid::SetColMinimalAcceptableWidth( int width )
+{
+    // We do allow a width of 0 since this gives us
+    // an easy way to temporarily hiding columns.
+    if ( width >= 0 )
+        m_minAcceptableColWidth = width;
+}
+
+void wxGrid::SetRowMinimalAcceptableHeight( int height )
+{
+    // We do allow a height of 0 since this gives us
+    // an easy way to temporarily hiding rows.
+    if ( height >= 0 )
+        m_minAcceptableRowHeight = height;
+}
+
+int  wxGrid::GetColMinimalAcceptableWidth() const
+{
+    return m_minAcceptableColWidth;
+}
+
+int  wxGrid::GetRowMinimalAcceptableHeight() const
+{
+    return m_minAcceptableRowHeight;
 }
 
 // ----------------------------------------------------------------------------
@@ -8438,7 +10269,11 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
 {
     wxClientDC dc(m_gridWin);
 
-    // init both of them to avoid compiler warnings, even if weo nly need one
+    // cancel editing of cell
+    HideCellEditControl();
+    SaveEditControlValue();
+
+    // init both of them to avoid compiler warnings, even if we only need one
     int row = -1,
         col = -1;
     if ( column )
@@ -8455,16 +10290,14 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
         else
             col = rowOrCol;
 
-        wxGridCellAttrattr = GetCellAttr(row, col);
-        wxGridCellRendererrenderer = attr->GetRenderer(this, row, col);
+        wxGridCellAttr *attr = GetCellAttr(row, col);
+        wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
         if ( renderer )
         {
             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
             extent = column ? size.x : size.y;
             if ( extent > extentMax )
-            {
                 extentMax = extent;
-            }
 
             renderer->DecRef();
         }
@@ -8477,38 +10310,36 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
     dc.SetFont( GetLabelFont() );
 
     if ( column )
+    {
         dc.GetTextExtent( GetColLabelValue(col), &w, &h );
+        if ( GetColLabelTextOrientation() == wxVERTICAL )
+            w = h;
+    }
     else
         dc.GetTextExtent( GetRowLabelValue(row), &w, &h );
 
     extent = column ? w : h;
     if ( extent > extentMax )
-    {
         extentMax = extent;
-    }
 
     if ( !extentMax )
     {
         // empty column - give default extent (notice that if extentMax is less
-        // than default extent but != 0, it's ok)
+        // than default extent but != 0, it's OK)
         extentMax = column ? m_defaultColWidth : m_defaultRowHeight;
     }
     else
     {
         if ( column )
-        {
             // leave some space around text
             extentMax += 10;
-        }
         else
-        {
             extentMax += 6;
-        }
     }
 
     if ( column )
     {
-        SetColSize(col, extentMax);
+        SetColSize( col, extentMax );
         if ( !GetBatchCount() )
         {
             int cw, ch, dummy;
@@ -8518,7 +10349,7 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
             CalcScrolledPosition(rect.x, 0, &rect.x, &dummy);
             rect.width = cw - rect.x;
             rect.height = m_colLabelHeight;
-            m_colLabelWin->Refresh( TRUE, &rect );
+            m_colLabelWin->Refresh( true, &rect );
         }
     }
     else
@@ -8528,14 +10359,15 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
         {
             int cw, ch, dummy;
             m_gridWin->GetClientSize( &cw, &ch );
-            wxRect rect ( CellToRect( row, 0 ) );
+            wxRect rect( CellToRect( row, 0 ) );
             rect.x = 0;
             CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
             rect.width = m_rowLabelWidth;
             rect.height = ch - rect.y;
-            m_rowLabelWin->Refresh( TRUE, &rect );
+            m_rowLabelWin->Refresh( true, &rect );
         }
     }
+
     if ( setAsMin )
     {
         if ( column )
@@ -8555,9 +10387,7 @@ int wxGrid::SetOrCalcColumnSizes(bool calcOnly, bool setAsMin)
     for ( int col = 0; col < m_numCols; col++ )
     {
         if ( !calcOnly )
-        {
             AutoSizeColumn(col, setAsMin);
-        }
 
         width += GetColWidth(col);
     }
@@ -8578,9 +10408,7 @@ int wxGrid::SetOrCalcRowSizes(bool calcOnly, bool setAsMin)
     for ( int row = 0; row < m_numRows; row++ )
     {
         if ( !calcOnly )
-        {
             AutoSizeRow(row, setAsMin);
-        }
 
         height += GetRowHeight(row);
     }
@@ -8595,17 +10423,22 @@ void wxGrid::AutoSize()
 {
     BeginBatch();
 
-    wxSize size(SetOrCalcColumnSizes(FALSE), SetOrCalcRowSizes(FALSE));
+    wxSize size(SetOrCalcColumnSizes(false), SetOrCalcRowSizes(false));
 
     // round up the size to a multiple of scroll step - this ensures that we
     // won't get the scrollbars if we're sized exactly to this width
-    wxSize sizeFit(GetScrollX(size.x) * GRID_SCROLL_LINE_X,
-                   GetScrollY(size.y) * GRID_SCROLL_LINE_Y);
+    // CalcDimension adds m_extraWidth + 1 etc. to calculate the necessary
+    // scrollbar steps
+    wxSize sizeFit(
+        GetScrollX(size.x + m_extraWidth + 1) * m_scrollLineX,
+        GetScrollY(size.y + m_extraHeight + 1) * m_scrollLineY );
 
-    // distribute the extra space between teh columns/rows to avoid having
+    // distribute the extra space between the columns/rows to avoid having
     // extra white space
-    wxCoord diff = sizeFit.x - size.x;
-    if ( diff )
+
+    // Remove the extra m_extraWidth + 1 added above
+    wxCoord diff = sizeFit.x - size.x + (m_extraWidth + 1);
+    if ( diff && m_numCols )
     {
         // try to resize the columns uniformly
         wxCoord diffPerCol = diff / m_numCols;
@@ -8629,8 +10462,8 @@ void wxGrid::AutoSize()
     }
 
     // same for rows
-    diff = sizeFit.y - size.y;
-    if ( diff )
+    diff = sizeFit.y - size.y - (m_extraHeight + 1);
+    if ( diff && m_numRows )
     {
         // try to resize the columns uniformly
         wxCoord diffPerRow = diff / m_numRows;
@@ -8658,13 +10491,97 @@ void wxGrid::AutoSize()
     SetClientSize(sizeFit);
 }
 
+void wxGrid::AutoSizeRowLabelSize( int row )
+{
+    wxArrayString lines;
+    long w, h;
+
+    // Hide the edit control, so it
+    // won't interfere with drag-shrinking.
+    if ( IsCellEditControlShown() )
+    {
+        HideCellEditControl();
+        SaveEditControlValue();
+    }
+
+    // autosize row height depending on label text
+    StringToLines( GetRowLabelValue( row ), lines );
+    wxClientDC dc( m_rowLabelWin );
+    GetTextBoxSize( dc, lines, &w, &h );
+    if ( h < m_defaultRowHeight )
+        h = m_defaultRowHeight;
+    SetRowSize(row, h);
+    ForceRefresh();
+}
+
+void wxGrid::AutoSizeColLabelSize( int col )
+{
+    wxArrayString lines;
+    long w, h;
+
+    // Hide the edit control, so it
+    // won't interfere with drag-shrinking.
+    if ( IsCellEditControlShown() )
+    {
+        HideCellEditControl();
+        SaveEditControlValue();
+    }
+
+    // autosize column width depending on label text
+    StringToLines( GetColLabelValue( col ), lines );
+    wxClientDC dc( m_colLabelWin );
+    if ( GetColLabelTextOrientation() == wxHORIZONTAL )
+        GetTextBoxSize( dc, lines, &w, &h );
+    else
+        GetTextBoxSize( dc, lines, &h, &w );
+    if ( w < m_defaultColWidth )
+        w = m_defaultColWidth;
+    SetColSize(col, w);
+    ForceRefresh();
+}
+
 wxSize wxGrid::DoGetBestSize() const
 {
     // don't set sizes, only calculate them
     wxGrid *self = (wxGrid *)this;  // const_cast
 
-    return wxSize(self->SetOrCalcColumnSizes(TRUE),
-                  self->SetOrCalcRowSizes(TRUE));
+    int width, height;
+    width = self->SetOrCalcColumnSizes(true);
+    height = self->SetOrCalcRowSizes(true);
+
+    if (!width)
+        width = 100;
+    if (!height)
+        height = 80;
+
+    // Round up to a multiple the scroll rate
+    // NOTE: this still doesn't get rid of the scrollbars;
+    // is there any magic incantation for that?
+    int xpu, ypu;
+    GetScrollPixelsPerUnit(&xpu, &ypu);
+    if (xpu)
+        width  += 1 + xpu - (width  % xpu);
+    if (ypu)
+        height += 1 + ypu - (height % ypu);
+
+    // limit to 1/4 of the screen size
+    int maxwidth, maxheight;
+    wxDisplaySize( &maxwidth, &maxheight );
+    maxwidth /= 2;
+    maxheight /= 2;
+    if ( width > maxwidth )
+        width = maxwidth;
+    if ( height > maxheight )
+        height = maxheight;
+
+    wxSize best(width, height);
+
+    // NOTE: This size should be cached, but first we need to add calls to
+    // InvalidateBestSize everywhere that could change the results of this
+    // calculation.
+    // CacheBestSize(size);
+
+    return best;
 }
 
 void wxGrid::Fit()
@@ -8672,7 +10589,6 @@ void wxGrid::Fit()
     AutoSize();
 }
 
-
 wxPen& wxGrid::GetDividerPen() const
 {
     return wxNullPen;
@@ -8689,9 +10605,12 @@ void wxGrid::SetCellValue( int row, int col, const wxString& s )
         m_table->SetValue( row, col, s );
         if ( !GetBatchCount() )
         {
-            wxClientDC dc( m_gridWin );
-            PrepareDC( dc );
-            DrawCell( dc, wxGridCellCoords(row, col) );
+            int dummy;
+            wxRect rect( CellToRect( row, col ) );
+            rect.x = 0;
+            rect.width = m_gridWin->GetClientSize().GetWidth();
+            CalcScrolledPosition(0, rect.y, &dummy, &rect.y);
+            m_gridWin->Refresh( false, &rect );
         }
 
         if ( m_currentCellCoords.GetRow() == row &&
@@ -8707,79 +10626,87 @@ void wxGrid::SetCellValue( int row, int col, const wxString& s )
     }
 }
 
-
-//
-// ------ Block, row and col selection
-//
+// ----------------------------------------------------------------------------
+// block, row and column selection
+// ----------------------------------------------------------------------------
 
 void wxGrid::SelectRow( int row, bool addToSelected )
 {
     if ( IsSelection() && !addToSelected )
         ClearSelection();
 
-    m_selection->SelectRow( row, FALSE, addToSelected );
+    if ( m_selection )
+        m_selection->SelectRow( row, false, addToSelected );
 }
 
-
 void wxGrid::SelectCol( int col, bool addToSelected )
 {
     if ( IsSelection() && !addToSelected )
         ClearSelection();
 
-    m_selection->SelectCol( col, FALSE, addToSelected );
+    if ( m_selection )
+        m_selection->SelectCol( col, false, addToSelected );
 }
 
-
 void wxGrid::SelectBlock( int topRow, int leftCol, int bottomRow, int rightCol,
                           bool addToSelected )
 {
     if ( IsSelection() && !addToSelected )
         ClearSelection();
 
-    m_selection->SelectBlock( topRow, leftCol, bottomRow, rightCol,
-                              FALSE, addToSelected );
+    if ( m_selection )
+        m_selection->SelectBlock( topRow, leftCol, bottomRow, rightCol,
+                                  false, addToSelected );
 }
 
-
 void wxGrid::SelectAll()
 {
     if ( m_numRows > 0 && m_numCols > 0 )
-        m_selection->SelectBlock( 0, 0, m_numRows-1, m_numCols-1 );
+    {
+        if ( m_selection )
+            m_selection->SelectBlock( 0, 0, m_numRows - 1, m_numCols - 1 );
+    }
 }
 
-//
-// ------ Cell, row and col deselection
-//
+// ----------------------------------------------------------------------------
+// cell, row and col deselection
+// ----------------------------------------------------------------------------
 
 void wxGrid::DeselectRow( int row )
 {
+    if ( !m_selection )
+        return;
+
     if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectRows )
     {
         if ( m_selection->IsInSelection(row, 0 ) )
-            m_selection->ToggleCellSelection( row, 0);
+            m_selection->ToggleCellSelection(row, 0);
     }
     else
     {
         int nCols = GetNumberCols();
-        for ( int i = 0; i < nCols ; i++ )
+        for ( int i = 0; i < nCols; i++ )
         {
             if ( m_selection->IsInSelection(row, i ) )
-                m_selection->ToggleCellSelection( row, i);
+                m_selection->ToggleCellSelection(row, i);
         }
     }
 }
 
 void wxGrid::DeselectCol( int col )
 {
+    if ( !m_selection )
+        return;
+
     if ( m_selection->GetSelectionMode() == wxGrid::wxGridSelectColumns )
     {
         if ( m_selection->IsInSelection(0, col ) )
-            m_selection->ToggleCellSelection( 0, col);
+            m_selection->ToggleCellSelection(0, col);
     }
     else
     {
         int nRows = GetNumberRows();
-        for ( int i = 0; i < nRows ; i++ )
+        for ( int i = 0; i < nRows; i++ )
         {
             if ( m_selection->IsInSelection(i, col ) )
                 m_selection->ToggleCellSelection(i, col);
@@ -8789,34 +10716,89 @@ void wxGrid::DeselectCol( int col )
 
 void wxGrid::DeselectCell( int row, int col )
 {
-    if ( m_selection->IsInSelection(row, col) )
+    if ( m_selection && m_selection->IsInSelection(row, col) )
         m_selection->ToggleCellSelection(row, col);
 }
 
 bool wxGrid::IsSelection()
 {
-    return ( m_selection->IsSelection() ||
+    return ( m_selection && (m_selection->IsSelection() ||
              ( m_selectingTopLeft != wxGridNoCellCoords &&
-               m_selectingBottomRight != wxGridNoCellCoords ) );
+               m_selectingBottomRight != wxGridNoCellCoords) ) );
 }
 
-bool wxGrid::IsInSelection( int row, int col )
+bool wxGrid::IsInSelection( int row, int col ) const
 {
-    return ( m_selection->IsInSelection( row, col ) ||
+    return ( m_selection && (m_selection->IsInSelection( row, col ) ||
              ( row >= m_selectingTopLeft.GetRow() &&
                col >= m_selectingTopLeft.GetCol() &&
                row <= m_selectingBottomRight.GetRow() &&
-               col <= m_selectingBottomRight.GetCol() ) );
+               col <= m_selectingBottomRight.GetCol() )) );
+}
+
+wxGridCellCoordsArray wxGrid::GetSelectedCells() const
+{
+    if (!m_selection)
+    {
+        wxGridCellCoordsArray a;
+        return a;
+    }
+
+    return m_selection->m_cellSelection;
+}
+
+wxGridCellCoordsArray wxGrid::GetSelectionBlockTopLeft() const
+{
+    if (!m_selection)
+    {
+        wxGridCellCoordsArray a;
+        return a;
+    }
+
+    return m_selection->m_blockSelectionTopLeft;
+}
+
+wxGridCellCoordsArray wxGrid::GetSelectionBlockBottomRight() const
+{
+    if (!m_selection)
+    {
+        wxGridCellCoordsArray a;
+        return a;
+    }
+
+    return m_selection->m_blockSelectionBottomRight;
+}
+
+wxArrayInt wxGrid::GetSelectedRows() const
+{
+    if (!m_selection)
+    {
+        wxArrayInt a;
+        return a;
+    }
+
+    return m_selection->m_rowSelection;
+}
+
+wxArrayInt wxGrid::GetSelectedCols() const
+{
+    if (!m_selection)
+    {
+        wxArrayInt a;
+        return a;
+    }
+
+    return m_selection->m_colSelection;
 }
 
 void wxGrid::ClearSelection()
 {
     m_selectingTopLeft = wxGridNoCellCoords;
     m_selectingBottomRight = wxGridNoCellCoords;
-    m_selection->ClearSelection();
+    if ( m_selection )
+        m_selection->ClearSelection();
 }
 
-
 // This function returns the rectangle that encloses the given block
 // in device coords clipped to the client size of the grid window.
 //
@@ -8833,7 +10815,7 @@ wxRect wxGrid::BlockToDeviceRect( const wxGridCellCoords &topLeft,
     }
     else
     {
-        rect = wxRect( 0, 0, 0, 0 );
+        rect = wxRect(0, 0, 0, 0);
     }
 
     cellRect = CellToRect( bottomRight );
@@ -8846,17 +10828,71 @@ wxRect wxGrid::BlockToDeviceRect( const wxGridCellCoords &topLeft,
         return wxGridNoCellRect;
     }
 
+    int i, j;
+    int left = rect.GetLeft();
+    int top = rect.GetTop();
+    int right = rect.GetRight();
+    int bottom = rect.GetBottom();
+
+    int leftCol = topLeft.GetCol();
+    int topRow = topLeft.GetRow();
+    int rightCol = bottomRight.GetCol();
+    int bottomRow = bottomRight.GetRow();
+
+    if (left > right)
+    {
+        i = left;
+        left = right;
+        right = i;
+        i = leftCol;
+        leftCol = rightCol;
+        rightCol = i;
+    }
+
+    if (top > bottom)
+    {
+        i = top;
+        top = bottom;
+        bottom = i;
+        i = topRow;
+        topRow = bottomRow;
+        bottomRow = i;
+    }
+
+    for ( j = topRow; j <= bottomRow; j++ )
+    {
+        for ( i = leftCol; i <= rightCol; i++ )
+        {
+            if ((j == topRow) || (j == bottomRow) || (i == leftCol) || (i == rightCol))
+            {
+                cellRect = CellToRect( j, i );
+
+                if (cellRect.x < left)
+                    left = cellRect.x;
+                if (cellRect.y < top)
+                    top = cellRect.y;
+                if (cellRect.x + cellRect.width > right)
+                    right = cellRect.x + cellRect.width;
+                if (cellRect.y + cellRect.height > bottom)
+                    bottom = cellRect.y + cellRect.height;
+            }
+            else
+            {
+                i = rightCol; // jump over inner cells.
+            }
+        }
+    }
+
     // convert to scrolled coords
     //
-    int left, top, right, bottom;
-    CalcScrolledPosition( rect.GetLeft(), rect.GetTop(), &left, &top );
-    CalcScrolledPosition( rect.GetRight(), rect.GetBottom(), &right, &bottom );
+    CalcScrolledPosition( left, top, &left, &top );
+    CalcScrolledPosition( right, bottom, &right, &bottom );
 
     int cw, ch;
     m_gridWin->GetClientSize( &cw, &ch );
 
     if (right < 0 || bottom < 0 || left > cw || top > ch)
-        return wxRect( 0, 0, 0, 0);
+        return wxRect(0,0,0,0);
 
     rect.SetLeft( wxMax(0, left) );
     rect.SetTop( wxMax(0, top) );
@@ -8866,11 +10902,9 @@ wxRect wxGrid::BlockToDeviceRect( const wxGridCellCoords &topLeft,
     return rect;
 }
 
-
-
-//
-// ------ Grid event classes
-//
+// ----------------------------------------------------------------------------
+// grid event classes
+// ----------------------------------------------------------------------------
 
 IMPLEMENT_DYNAMIC_CLASS( wxGridEvent, wxNotifyEvent )
 
@@ -8921,13 +10955,13 @@ wxGridRangeSelectEvent::wxGridRangeSelectEvent(int id, wxEventType type, wxObjec
                                                bool shift, bool alt, bool meta )
         : wxNotifyEvent( type, id )
 {
-    m_topLeft     = topLeft;
+    m_topLeft = topLeft;
     m_bottomRight = bottomRight;
-    m_selecting   = sel;
-    m_control     = control;
-    m_shift       = shift;
-    m_alt         = alt;
-    m_meta        = meta;
+    m_selecting = sel;
+    m_control = control;
+    m_shift = shift;
+    m_alt = alt;
+    m_meta = meta;
 
     SetEventObject(obj);
 }
@@ -8946,8 +10980,4 @@ wxGridEditorCreatedEvent::wxGridEditorCreatedEvent(int id, wxEventType type,
     m_ctrl = ctrl;
 }
 
-
-#endif // !wxUSE_NEW_GRID/wxUSE_NEW_GRID
-
 #endif // wxUSE_GRID
-