X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ccdee36f75f1e988409a3455d1bfc3dedb957c9b..137c8bde085d6d5b7c459902d2ea1a198ab48765:/src/generic/grid.cpp

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index f1decc96ce..6794b49c3e 100644
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -2,14 +2,14 @@
 // 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
 /////////////////////////////////////////////////////////////////////////////
 
-// For compilers that support precompilatixon, includes "wx/wx.h".
+// For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
@@ -29,6 +29,7 @@
     #include "wx/valtext.h"
     #include "wx/intl.h"
     #include "wx/math.h"
+    #include "wx/listbox.h"
 #endif
 
 #include "wx/textfile.h"
@@ -104,6 +105,7 @@ 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)
@@ -148,7 +150,7 @@ public:
 private:
     wxGrid   *m_owner;
 
-    void OnPaint( wxPaintEvent &event );
+    void OnPaint( wxPaintEvent& event );
     void OnMouseEvent( wxMouseEvent& event );
     void OnMouseWheel( wxMouseEvent& event );
     void OnKeyDown( wxKeyEvent& event );
@@ -188,9 +190,9 @@ 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,
@@ -262,7 +264,6 @@ BEGIN_EVENT_TABLE( wxGridCellEditorEvtHandler, wxEvtHandler )
 END_EVENT_TABLE()
 
 
-
 // ----------------------------------------------------------------------------
 // the internal data representation used by wxGridCellAttrProvider
 // ----------------------------------------------------------------------------
@@ -370,6 +371,7 @@ private:
     wxGridDataTypeInfoArray m_typeinfo;
 };
 
+
 // ----------------------------------------------------------------------------
 // conditional compilation
 // ----------------------------------------------------------------------------
@@ -478,7 +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;
@@ -507,6 +509,7 @@ void wxGridCellEditor::Show(bool show, wxGridCellAttr *attr)
             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
         }
@@ -569,6 +572,12 @@ bool wxGridCellEditor::IsAcceptedKey(wxKeyEvent& event)
     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
@@ -615,7 +624,7 @@ void wxGridCellTextEditor::Create(wxWindow* parent,
     m_control = new wxTextCtrl(parent, id, wxEmptyString,
                                wxDefaultPosition, wxDefaultSize
 #if defined(__WXMSW__)
-                               , wxTE_PROCESS_TAB | wxTE_AUTO_SCROLL
+                               , wxTE_PROCESS_TAB | wxTE_AUTO_SCROLL | wxNO_BORDER
 #endif
                               );
 
@@ -631,8 +640,8 @@ 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)
@@ -651,27 +660,33 @@ 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_x = ( rect.x > 2 ) ? 2 : 1;
     int extra_y = ( rect.y > 2 ) ? 2 : 1;
-#endif
 
-#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
+#endif
 
     wxGridCellEditor::SetSize(rect);
 }
@@ -706,6 +721,7 @@ bool wxGridCellTextEditor::EndEdit(int row, int col, wxGrid* grid)
         grid->GetTable()->SetValue(row, col, value);
 
     m_startValue = wxEmptyString;
+
     // No point in setting the text of the hidden control
     //Text()->SetValue(m_startValue);
 
@@ -798,13 +814,13 @@ 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() );
         }
     }
 }
@@ -848,7 +864,7 @@ void wxGridCellNumberEditor::Create(wxWindow* parent,
 
 #if wxUSE_VALIDATORS
         Text()->SetValidator(wxTextValidator(wxFILTER_NUMERIC));
-#endif // wxUSE_VALIDATORS
+#endif
     }
 }
 
@@ -1041,7 +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)
@@ -1307,7 +1323,7 @@ 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))
     {
@@ -1327,7 +1343,7 @@ 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 value = CBox()->GetValue();
@@ -1348,7 +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);
 }
@@ -1458,15 +1474,15 @@ 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)
@@ -1638,6 +1654,7 @@ void wxGridCellEditorEvtHandler::OnChar(wxKeyEvent& event)
             event.Skip();
             break;
         }
+
         case WXK_END:
         {
             if ( wholeCellVisible )
@@ -1691,6 +1708,7 @@ void wxGridCellEditorEvtHandler::OnChar(wxKeyEvent& event)
 
         default:
             event.Skip();
+            break;
     }
 }
 
@@ -1762,21 +1780,21 @@ void wxGridCellStringRenderer::SetTextColoursAndFont(const wxGrid& grid,
     // different coloured text when the grid is disabled
     if ( grid.IsEnabled() )
     {
-      if ( isSelected )
-      {
-          dc.SetTextBackground( grid.GetSelectionBackground() );
-          dc.SetTextForeground( grid.GetSelectionForeground() );
-      }
-      else
-      {
-          dc.SetTextBackground( attr.GetBackgroundColour() );
-          dc.SetTextForeground( attr.GetTextColour() );
-      }
+        if ( isSelected )
+        {
+            dc.SetTextBackground( grid.GetSelectionBackground() );
+            dc.SetTextForeground( grid.GetSelectionForeground() );
+        }
+        else
+        {
+            dc.SetTextBackground( attr.GetBackgroundColour() );
+            dc.SetTextForeground( attr.GetTextColour() );
+        }
     }
     else
     {
-      dc.SetTextBackground(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
-      dc.SetTextForeground(wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT));
+        dc.SetTextBackground(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
+        dc.SetTextForeground(wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT));
     }
 
     dc.SetFont( attr.GetFont() );
@@ -1852,7 +1870,9 @@ void wxGridCellStringRenderer::Draw(wxGrid& grid,
                 }
 
                 if (is_empty)
+                {
                     rect.width += grid.GetColSize(i);
+                }
                 else
                 {
                     i--;
@@ -1874,10 +1894,10 @@ void wxGridCellStringRenderer::Draw(wxGrid& grid,
             wxRect clip = rect;
             clip.x += rectCell.width;
             // draw each overflow cell individually
-            int col_end = col+cell_cols + overflowCols;
+            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++)
+            for (int i = col + cell_cols; i <= col_end; i++)
             {
                 clip.width = grid.GetColSize(i) - 1;
                 dc.DestroyClippingRegion();
@@ -2158,7 +2178,7 @@ void wxGridCellBoolRenderer::Draw(wxGrid& grid,
 
     // draw a border around checkmark
     int vAlign, hAlign;
-    attr.GetAlignment(& hAlign, &vAlign);
+    attr.GetAlignment(&hAlign, &vAlign);
 
     wxRect rectBorder;
     if (hAlign == wxALIGN_CENTRE)
@@ -2185,7 +2205,9 @@ void wxGridCellBoolRenderer::Draw(wxGrid& grid,
 
     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) );
@@ -2391,7 +2413,9 @@ void wxGridCellAttr::GetAlignment(int *hAlign, int *vAlign) const
             *vAlign = m_vAlign;
     }
     else if (m_defGridAttr && m_defGridAttr != this)
+    {
         m_defGridAttr->GetAlignment(hAlign, vAlign);
+    }
     else
     {
         wxFAIL_MSG(wxT("Missing default cell attribute"));
@@ -2411,11 +2435,11 @@ void wxGridCellAttr::GetSize( int *num_rows, int *num_cols ) const
 // 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 )
     {
@@ -2431,14 +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)
@@ -2463,7 +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 )
     {
@@ -2479,14 +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)
@@ -3204,7 +3220,7 @@ wxString wxGridTableBase::GetColLabelValue( int col )
 
     // reverse the string...
     wxString s2;
-    for ( i = 0;  i < n;  i++ )
+    for ( i = 0; i < n; i++ )
     {
         s2 += s[n - i - 1];
     }
@@ -3373,9 +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;
             }
@@ -3498,9 +3514,18 @@ bool wxGridStringTable::InsertCols( size_t pos, size_t numCols )
         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 );
         }
@@ -3535,7 +3560,7 @@ bool wxGridStringTable::AppendCols( size_t numCols )
     }
 #endif
 
-    for ( row = 0;  row < curNumRows;  row++ )
+    for ( row = 0; row < curNumRows; row++ )
     {
         m_data[row].Add( wxEmptyString, numCols );
     }
@@ -3572,12 +3597,23 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
         return false;
     }
 
-    if ( numCols > curNumCols - pos )
+    int colID;
+    if ( GetView() )
+        colID = GetView()->GetColAt( pos );
+    else
+        colID = pos;
+
+    if ( numCols > curNumCols - colID )
     {
-        numCols = curNumCols - pos;
+        numCols = curNumCols - colID;
     }
 
-    for ( row = 0;  row < curNumRows;  row++ )
+    if ( !m_colLabels.IsEmpty() )
+    {
+        m_colLabels.RemoveAt( colID, numCols );
+    }
+
+    for ( row = 0; row < curNumRows; row++ )
     {
         if ( numCols >= curNumCols )
         {
@@ -3585,7 +3621,7 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
         }
         else
         {
-            m_data[row].RemoveAt( pos, numCols );
+            m_data[row].RemoveAt( colID, numCols );
         }
     }
 
@@ -3637,7 +3673,7 @@ 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) );
         }
@@ -3653,7 +3689,7 @@ 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) );
         }
@@ -3670,17 +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 )
+    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|wxBORDER_NONE|wxFULL_REPAINT_ON_RESIZE )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3700,7 +3736,7 @@ 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 )
@@ -3710,7 +3746,7 @@ void wxGridRowLabelWindow::OnMouseEvent( wxMouseEvent& 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
@@ -3740,17 +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 )
+    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|wxBORDER_NONE|wxFULL_REPAINT_ON_RESIZE )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3770,7 +3806,7 @@ 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 )
@@ -3780,7 +3816,7 @@ 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
@@ -3809,18 +3845,18 @@ void wxGridColLabelWindow::OnChar( wxKeyEvent& event )
 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 )
+    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|wxBORDER_NONE|wxFULL_REPAINT_ON_RESIZE )
+  : wxWindow( parent, id, pos, size, wxWANTS_CHARS | wxBORDER_NONE | wxFULL_REPAINT_ON_RESIZE )
 {
     m_owner = parent;
 }
@@ -3843,7 +3879,7 @@ void wxGridCornerLabelWindow::OnPaint( wxPaintEvent& WXUNUSED(event) )
 
     wxRendererNative::Get().DrawHeaderButton( this, dc, rect, 0 );
 #else // !__WXGTK__
-    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW), 1, wxSOLID) );
+    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 );
@@ -3892,11 +3928,11 @@ 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_CHAR( wxGridWindow::OnChar )
     EVT_SET_FOCUS( wxGridWindow::OnFocus )
     EVT_KILL_FOCUS( wxGridWindow::OnFocus )
     EVT_ERASE_BACKGROUND( wxGridWindow::OnEraseBackground )
@@ -3951,7 +3987,7 @@ void wxGridWindow::OnMouseEvent( wxMouseEvent& 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
@@ -3998,9 +4034,7 @@ static int CoordToRowOrCol(int coord, int defaultDist, int minDist,
                            const wxArrayInt& BorderArray, int nMax,
                            bool clipToMinMax);
 
-#define internalXToCol(x) CoordToRowOrCol(x, m_defaultColWidth, \
-                                          m_minAcceptableColWidth, \
-                                          m_colRights, m_numCols, true)
+#define internalXToCol(x) XToCol(x, true)
 #define internalYToRow(y) CoordToRowOrCol(y, m_defaultRowHeight, \
                                           m_minAcceptableRowHeight, \
                                           m_rowBottoms, m_numRows, true)
@@ -4097,7 +4131,7 @@ bool wxGrid::Create(wxWindow *parent, wxWindowID id,
                           long style, const wxString& name)
 {
     if (!wxScrolledWindow::Create(parent, id, pos, size,
-                                  style | wxWANTS_CHARS , name))
+                                  style | wxWANTS_CHARS, name))
         return false;
 
     m_colMinWidths = wxLongToLongHashMap(GRID_HASH_SIZE);
@@ -4139,16 +4173,17 @@ wxGrid::~wxGrid()
 // be removed as well as the #else cases below.
 #define _USE_VISATTR 0
 
-#if _USE_VISATTR
-#include "wx/listbox.h"
-#endif
-
 void wxGrid::Create()
 {
-    m_created = false;    // set to true by CreateGrid
+    // set to true by CreateGrid
+    m_created = false;
 
-    m_table        = (wxGridTableBase *) NULL;
-    m_ownTable     = false;
+    // create the type registry
+    m_typeRegistry = new wxGridTypeRegistry;
+    m_selection = NULL;
+
+    m_table = (wxGridTableBase *) NULL;
+    m_ownTable = false;
 
     m_cellEditCtrlEnabled = false;
 
@@ -4183,16 +4218,7 @@ 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 = NULL;
-
     // subwindow components that make up the wxGrid
-    m_cornerLabelWin = new wxGridCornerLabelWindow( this,
-                                                    wxID_ANY,
-                                                    wxDefaultPosition,
-                                                    wxDefaultSize );
-
     m_rowLabelWin = new wxGridRowLabelWindow( this,
                                               wxID_ANY,
                                               wxDefaultPosition,
@@ -4203,6 +4229,11 @@ void wxGrid::Create()
                                               wxDefaultPosition,
                                               wxDefaultSize );
 
+    m_cornerLabelWin = new wxGridCornerLabelWindow( this,
+                                                    wxID_ANY,
+                                                    wxDefaultPosition,
+                                                    wxDefaultSize );
+
     m_gridWin = new wxGridWindow( this,
                                   m_rowLabelWin,
                                   m_colLabelWin,
@@ -4285,15 +4316,15 @@ bool wxGrid::SetTable( wxGridTableBase *table, bool takeOwnership,
 
         if (m_ownTable)
         {
-            wxGridTableBase *t=m_table;
-            m_table=0;
+            wxGridTableBase *t = m_table;
+            m_table = NULL;
             delete t;
         }
 
         delete m_selection;
 
-        m_table = 0;
-        m_selection = 0;
+        m_table = NULL;
+        m_selection = NULL;
         m_numRows = 0;
         m_numCols = 0;
     }
@@ -4327,10 +4358,10 @@ void wxGrid::Init()
     }
     else
     {
-        m_labelBackgroundColour = wxColour( wxT("WHITE") );
+        m_labelBackgroundColour = *wxWHITE;
     }
 
-    m_labelTextColour = wxColour( wxT("BLACK") );
+    m_labelTextColour = *wxBLACK;
 
     // init attr cache
     m_attrCache.row = -1;
@@ -4367,6 +4398,8 @@ void wxGrid::Init()
     m_cellHighlightPenWidth = 2;
     m_cellHighlightROPenWidth = 1;
 
+    m_canDragColMove = false;
+
     m_cursorMode  = WXGRID_CURSOR_SELECT_CELL;
     m_winCapture = (wxWindow *)NULL;
     m_canDragRowSize = true;
@@ -4424,7 +4457,7 @@ void wxGrid::InitRowHeights()
 
     m_rowHeights.Add( m_defaultRowHeight, m_numRows );
 
-    for ( int i = 0;  i < m_numRows;  i++ )
+    for ( int i = 0; i < m_numRows; i++ )
     {
         rowBottom += m_defaultRowHeight;
         m_rowBottoms.Add( rowBottom );
@@ -4442,9 +4475,9 @@ void wxGrid::InitColWidths()
 
     m_colWidths.Add( m_defaultColWidth, m_numCols );
 
-    for ( int i = 0;  i < m_numCols;  i++ )
+    for ( int i = 0; i < m_numCols; i++ )
     {
-        colRight += m_defaultColWidth;
+        colRight = ( GetColPos( i ) + 1 ) * m_defaultColWidth;
         m_colRights.Add( colRight );
     }
 }
@@ -4456,13 +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];
 }
 
@@ -4494,30 +4527,30 @@ 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();
+        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
@@ -4540,7 +4573,6 @@ void wxGrid::CalcDimensions()
     CalcWindowSizes();
 }
 
-
 void wxGrid::CalcWindowSizes()
 {
     // escape if the window is has not been fully created yet
@@ -4554,19 +4586,18 @@ void wxGrid::CalcWindowSizes()
     if ( m_cornerLabelWin && m_cornerLabelWin->IsShown() )
         m_cornerLabelWin->SetSize( 0, 0, m_rowLabelWidth, m_colLabelHeight );
 
-    if (  m_colLabelWin && 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 && m_rowLabelWin->IsShown() )
-        m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, ch - m_colLabelHeight);
+        m_rowLabelWin->SetSize( 0, m_colLabelHeight, m_rowLabelWidth, ch - m_colLabelHeight );
 
     if ( m_gridWin && m_gridWin->IsShown() )
-        m_gridWin->SetSize( m_rowLabelWidth, m_colLabelHeight, cw - m_rowLabelWidth, ch - m_colLabelHeight);
+        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 )
 {
@@ -4616,7 +4647,7 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 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;
@@ -4661,7 +4692,7 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 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;
@@ -4697,12 +4728,13 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 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;
@@ -4719,6 +4751,7 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             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
@@ -4746,6 +4779,25 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt2();
             m_numCols += numCols;
 
+            if ( !m_colAt.IsEmpty() )
+            {
+                //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_colAt[i] = i;
+                }
+            }
+
             if ( !m_colWidths.IsEmpty() )
             {
                 m_colWidths.Insert( m_defaultColWidth, pos, numCols );
@@ -4753,10 +4805,13 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
 
                 int right = 0;
                 if ( pos > 0 )
-                    right = m_colRights[pos - 1];
+                    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;
                 }
@@ -4780,7 +4835,6 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
                 CalcDimensions();
                 m_colLabelWin->Refresh();
             }
-
         }
         result = true;
         break;
@@ -4790,6 +4844,19 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt();
             int oldNumCols = m_numCols;
             m_numCols += numCols;
+
+            if ( !m_colAt.IsEmpty() )
+            {
+                m_colAt.Add( 0, numCols );
+
+                //Set the new columns' positions
+                int i;
+                for ( i = oldNumCols; i < m_numCols; i++ )
+                {
+                    m_colAt[i] = i;
+                }
+            }
+
             if ( !m_colWidths.IsEmpty() )
             {
                 m_colWidths.Add( m_defaultColWidth, numCols );
@@ -4797,10 +4864,13 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
 
                 int right = 0;
                 if ( oldNumCols > 0 )
-                    right = m_colRights[oldNumCols - 1];
+                    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;
                 }
@@ -4828,14 +4898,32 @@ bool wxGrid::Redimension( wxGridTableMessage& msg )
             int numCols = msg.GetCommandInt2();
             m_numCols -= numCols;
 
+            if ( !m_colAt.IsEmpty() )
+            {
+                int colID = GetColAt( pos );
+
+                m_colAt.RemoveAt( pos, numCols );
+
+                //Shift the column IDs
+                int colPos;
+                for ( colPos = 0; colPos < m_numCols; colPos++ )
+                {
+                    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;
                 }
@@ -4906,7 +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
 
@@ -4919,7 +5008,7 @@ wxArrayInt wxGrid::CalcRowLabelsExposed( const wxRegion& reg )
         // find the row labels within these bounds
         //
         int row;
-        for ( row = internalYToRow(top);  row < m_numRows;  row++ )
+        for ( row = internalYToRow(top); row < m_numRows; row++ )
         {
             if ( GetRowBottom(row) < top )
                 continue;
@@ -4956,7 +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
 
@@ -4969,8 +5059,11 @@ wxArrayInt wxGrid::CalcColLabelsExposed( const wxRegion& reg )
         // find the cells within these bounds
         //
         int col;
-        for ( col = internalXToCol(left);  col < m_numCols;  col++ )
+        int colPos;
+        for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
         {
+            col = GetColAt( colPos );
+
             if ( GetColRight(col) < left )
                 continue;
 
@@ -5020,7 +5113,7 @@ wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
         // find the cells within these bounds
         //
         int row, col;
-        for ( row = internalYToRow(top);  row < m_numRows;  row++ )
+        for ( row = internalYToRow(top); row < m_numRows; row++ )
         {
             if ( GetRowBottom(row) <= top )
                 continue;
@@ -5028,8 +5121,11 @@ wxGridCellCoordsArray wxGrid::CalcCellsExposed( const wxRegion& reg )
             if ( GetRowTop(row) > bottom )
                 break;
 
-            for ( col = internalXToCol(left);  col < m_numCols;  col++ )
+            int colPos;
+            for ( colPos = GetColPos( internalXToCol(left) ); colPos < m_numCols; colPos++ )
             {
+                col = GetColAt( colPos );
+
                 if ( GetColRight(col) <= left )
                     continue;
 
@@ -5277,6 +5373,9 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
         {
             m_isDragging = true;
             m_colLabelWin->CaptureMouse();
+
+            if ( m_cursorMode == WXGRID_CURSOR_MOVE_COL )
+                m_dragRowOrCol = XToCol( x );
         }
 
         if ( event.LeftIsDown() )
@@ -5320,6 +5419,63 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
                 }
                 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
                 default:
@@ -5360,31 +5516,46 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
             if ( col >= 0 &&
                  !SendEvent( wxEVT_GRID_LABEL_LEFT_CLICK, -1, col, event ) )
             {
-                if ( !event.ShiftDown() && !event.CmdDown() )
-                    ClearSelection();
-                if ( m_selection )
+                if ( m_canDragColMove )
                 {
-                    if ( event.ShiftDown() )
-                    {
-                        m_selection->SelectBlock( 0,
-                                                  m_currentCellCoords.GetCol(),
-                                                  GetNumberRows() - 1, col,
-                                                  event.ControlDown(),
-                                                  event.ShiftDown(),
-                                                  event.AltDown(),
-                                                  event.MetaDown() );
-                    }
-                    else
+                    //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
+                {
+                    if ( !event.ShiftDown() && !event.CmdDown() )
+                        ClearSelection();
+                    if ( m_selection )
                     {
-                        m_selection->SelectCol( col,
-                                                event.ControlDown(),
-                                                event.ShiftDown(),
-                                                event.AltDown(),
-                                                event.MetaDown() );
+                        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);
+                    ChangeCursorMode(WXGRID_CURSOR_SELECT_COL, m_colLabelWin);
+                }
             }
         }
         else
@@ -5424,14 +5595,29 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
     //
     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);
@@ -5526,7 +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"),
@@ -5567,6 +5754,10 @@ 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;
@@ -5642,7 +5833,7 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
                 {
                     if ( m_selectingKeyboard == wxGridNoCellCoords)
                         m_selectingKeyboard = coords;
-                    HighlightBlock ( m_selectingKeyboard, coords );
+                    HighlightBlock( m_selectingKeyboard, coords );
                 }
                 else if ( CanDragCell() )
                 {
@@ -5708,9 +5899,9 @@ 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;
         }
 
@@ -5795,7 +5986,6 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
         }
     }
 
-
     // ------------ Left double click
     //
     else if ( event.LeftDClick() && coords != wxGridNoCellCoords )
@@ -5816,7 +6006,6 @@ void wxGrid::ProcessGridCellMouseEvent( wxMouseEvent& event )
         }
     }
 
-
     // ------------ Left button released
     //
     else if ( event.LeftUp() )
@@ -5984,7 +6173,7 @@ 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();
 
@@ -6008,7 +6197,7 @@ void wxGrid::DoEndDragResizeRow()
             {
                 int i, cell_rows, cell_cols, subtract_rows = 0;
                 int leftCol = XToCol(left);
-                int rightCol = internalXToCol(left+cw);
+                int rightCol = internalXToCol(left + cw);
                 if (leftCol >= 0)
                 {
                     for (i=leftCol; i<rightCol; i++)
@@ -6043,7 +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();
 
@@ -6068,7 +6257,7 @@ void wxGrid::DoEndDragResizeCol()
             {
                 int i, cell_rows, cell_cols, subtract_cols = 0;
                 int topRow = YToRow(top);
-                int bottomRow = internalYToRow(top+cw);
+                int bottomRow = internalYToRow(top + cw);
                 if (topRow >= 0)
                 {
                     for (i=topRow; i<bottomRow; i++)
@@ -6077,6 +6266,7 @@ void wxGrid::DoEndDragResizeCol()
                         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;
@@ -6090,6 +6280,112 @@ void wxGrid::DoEndDragResizeCol()
     }
 }
 
+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();
+    }
+}
+
+
 //
 // ------ interaction with data model
 //
@@ -6117,7 +6413,7 @@ bool wxGrid::ProcessTableMessage( wxGridTableMessage& msg )
 }
 
 // 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.
 //
@@ -6129,7 +6425,8 @@ void wxGrid::ClearGrid()
             DisableCellEditControl();
 
         m_table->Clear();
-        if ( !GetBatchCount() ) m_gridWin->Refresh();
+        if (!GetBatchCount())
+            m_gridWin->Refresh();
     }
 }
 
@@ -6154,6 +6451,7 @@ bool wxGrid::InsertRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
         // the table will have sent the results of the insert row
         // operation to this view object as a grid table message
     }
+
     return false;
 }
 
@@ -6171,9 +6469,11 @@ bool wxGrid::AppendRows( int numRows, bool WXUNUSED(updateLabels) )
     {
         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;
 }
 
@@ -6197,6 +6497,7 @@ bool wxGrid::DeleteRows( int pos, int numRows, bool WXUNUSED(updateLabels) )
         // the table will have sent the results of the delete row
         // operation to this view object as a grid table message
     }
+
     return false;
 }
 
@@ -6347,27 +6648,20 @@ int wxGrid::SendEvent( const wxEventType type,
 int wxGrid::SendEvent( const wxEventType type,
                         int row, int col )
 {
-   bool claimed;
-   bool vetoed;
+   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();
@@ -6382,7 +6676,8 @@ int wxGrid::SendEvent( const wxEventType type,
 
 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)
@@ -6411,7 +6706,8 @@ void wxGrid::Refresh(bool eraseb, const wxRect* rect)
                 width_label = rectWidth;
 
             height_label = m_colLabelHeight - rect_y;
-            if (height_label > rectHeight) height_label = rectHeight;
+            if (height_label > rectHeight)
+                height_label = rectHeight;
 
             if (rect_x > m_rowLabelWidth)
             {
@@ -6495,7 +6791,6 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
     m_inOnKeyDown = true;
 
     // propagate the event up and see if it gets processed
-    //
     wxWindow *parent = GetParent();
     wxKeyEvent keyEvt( event );
     keyEvt.SetEventObject( parent );
@@ -6503,7 +6798,6 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
     if ( !parent->GetEventHandler()->ProcessEvent( keyEvt ) )
     {
         // try local handlers
-        //
         switch ( event.GetKeyCode() )
         {
             case WXK_UP:
@@ -6600,8 +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
                 {
@@ -6622,12 +6916,13 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
                 {
                     if ( m_selection )
                     {
-                        m_selection->ToggleCellSelection( m_currentCellCoords.GetRow(),
-                                                          m_currentCellCoords.GetCol(),
-                                                          event.ControlDown(),
-                                                          event.ShiftDown(),
-                                                          event.AltDown(),
-                                                          event.MetaDown() );
+                        m_selection->ToggleCellSelection(
+                            m_currentCellCoords.GetRow(),
+                            m_currentCellCoords.GetCol(),
+                            event.ControlDown(),
+                            event.ShiftDown(),
+                            event.AltDown(),
+                            event.MetaDown() );
                     }
                     break;
                 }
@@ -6658,14 +6953,15 @@ void wxGrid::OnKeyUp( wxKeyEvent& event )
         {
             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_selection->SelectBlock(
+                    m_selectingTopLeft.GetRow(),
+                    m_selectingTopLeft.GetCol(),
+                    m_selectingBottomRight.GetRow(),
+                    m_selectingBottomRight.GetCol(),
+                    event.ControlDown(),
+                    true,
+                    event.AltDown(),
+                    event.MetaDown() );
             }
         }
 
@@ -6826,9 +7122,9 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
         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.
@@ -6866,10 +7162,9 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
             // 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 ) );
+            rect[0] = BlockToDeviceRect(
+                wxGridCellCoords( oldTop,  oldLeft ),
+                wxGridCellCoords( oldBottom, leftCol - 1 ) );
         }
 
         if ( oldTop < topRow )
@@ -6888,8 +7183,8 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
             // area to the right of the old or new selection.
             need_refresh[2] = true;
             rect[2] = BlockToDeviceRect(
-                wxGridCellCoords ( oldTop, rightCol + 1 ),
-                wxGridCellCoords ( oldBottom, oldRight ) );
+                wxGridCellCoords( oldTop, rightCol + 1 ),
+                wxGridCellCoords( oldBottom, oldRight ) );
         }
 
         if ( oldBottom > bottomRow )
@@ -6898,8 +7193,8 @@ void wxGrid::HighlightBlock( int topRow, int leftCol, int bottomRow, int rightCo
             // area below the old or new selection.
             need_refresh[3] = true;
             rect[3] = BlockToDeviceRect(
-                wxGridCellCoords ( bottomRow + 1, leftCol ),
-                wxGridCellCoords ( oldBottom, rightCol ) );
+                wxGridCellCoords( bottomRow + 1, leftCol ),
+                wxGridCellCoords( oldBottom, rightCol ) );
         }
 
         // various Refresh() calls
@@ -6944,9 +7239,9 @@ bool wxGrid::SetModelValues()
 
     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) );
             }
@@ -6971,7 +7266,7 @@ void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
     int row, col, cell_rows, cell_cols;
     wxGridCellCoordsArray redrawCells;
 
-    for ( i = numCells-1; i >= 0;  i-- )
+    for ( i = numCells - 1; i >= 0; i-- )
     {
         row = cells[i].GetRow();
         col = cells[i].GetCol();
@@ -6980,9 +7275,9 @@ void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
         // 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);
+            wxGridCellCoords cell( row + cell_rows, col + cell_cols );
             bool marked = false;
-            for ( int j = 0;  j < numCells;  j++ )
+            for ( int j = 0; j < numCells; j++ )
             {
                 if ( cell == cells[j] )
                 {
@@ -7016,7 +7311,7 @@ void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
         {
             for ( int l = 0; l < cell_rows; l++ )
             {
-                // find a cell in this row to left alreay marked for repaint
+                // 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) &&
@@ -7072,7 +7367,7 @@ void wxGrid::DrawGridCellArea( wxDC& dc, const wxGridCellCoordsArray& cells )
 
     numCells = redrawCells.GetCount();
 
-    for ( i = numCells - 1; i >= 0;  i-- )
+    for ( i = numCells - 1; i >= 0; i-- )
     {
         DrawCell( dc, redrawCells[i] );
     }
@@ -7086,7 +7381,7 @@ void wxGrid::DrawGridSpace( wxDC& dc )
   int right, bottom;
   CalcUnscrolledPosition( cw, ch, &right, &bottom );
 
-  int rightCol = m_numCols > 0 ? GetColRight(m_numCols - 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 )
@@ -7099,12 +7394,12 @@ 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 );
       }
   }
 }
@@ -7133,7 +7428,7 @@ void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
     // Note: However, only if it is really _shown_, i.e. not hidden!
     if ( isCurrent && IsCellEditControlShown() )
     {
-        // OSAF NB: this "#if..." is temporary and fixes a problem where the
+        // 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.
@@ -7145,8 +7440,7 @@ void wxGrid::DrawCell( wxDC& dc, const wxGridCellCoords& coords )
     }
     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();
@@ -7173,10 +7467,10 @@ void wxGrid::DrawCellHighlight( wxDC& dc, const wxGridCellAttr *attr )
 
     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
+        // 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;
@@ -7210,7 +7504,7 @@ void wxGrid::DrawCellHighlight( wxDC& dc, const wxGridCellAttr *attr )
         dc.SetPen(*wxBLACK_PEN);
         dc.DrawLine(x1, y2, x2, y2);
         dc.DrawLine(x2, y1, x2, y2 + 1);
-#endif // 0
+#endif
 }
 
 void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
@@ -7225,12 +7519,10 @@ void wxGrid::DrawCellBorder( wxDC& dc, const wxGridCellCoords& coords )
     wxRect rect = CellToRect( row, col );
 
     // right hand border
-    //
     dc.DrawLine( rect.x + rect.width, rect.y,
                  rect.x + rect.width, rect.y + rect.height + 1 );
 
     // bottom border
-    //
     dc.DrawLine( rect.x, rect.y + rect.height,
                  rect.x + rect.width, rect.y + rect.height);
 }
@@ -7310,13 +7602,13 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
 
     // avoid drawing grid lines past the last row and col
     //
-    right = wxMin( right, GetColRight(m_numCols - 1) );
+    right = wxMin( right, GetColRight(GetColAt( m_numCols - 1 )) );
     bottom = wxMin( bottom, GetRowBottom(m_numRows - 1) );
 
     // no gridlines inside multicells, clip them out
-    int leftCol   = internalXToCol(left);
-    int topRow    = internalYToRow(top);
-    int rightCol  = internalXToCol(right);
+    int leftCol = GetColPos( internalXToCol(left) );
+    int topRow = internalYToRow(top);
+    int rightCol = GetColPos( internalXToCol(right) );
     int bottomRow = internalYToRow(bottom);
 
 #ifndef __WXMAC__
@@ -7328,8 +7620,11 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
 
     for (j=topRow; j<bottomRow; j++)
     {
-        for (i=leftCol; i<rightCol; i++)
+        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))
             {
@@ -7339,14 +7634,14 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
             }
             else if ((cell_rows < 0) || (cell_cols < 0))
             {
-                rect = CellToRect(j+cell_rows, i+cell_cols);
+                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);
+    wxRegion clippedcells( left, top, right - left, bottom - top );
 
     int i, j, cell_rows, cell_cols;
     wxRect rect;
@@ -7369,6 +7664,7 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
         }
     }
 #endif
+
     dc.SetClippingRegion( clippedcells );
 
     dc.SetPen( wxPen(GetGridLineColour(), 1, wxSOLID) );
@@ -7393,8 +7689,11 @@ void wxGrid::DrawAllGridLines( wxDC& dc, const wxRegion & WXUNUSED(reg) )
 
     // vertical grid lines
     //
-    for ( i = internalXToCol(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 )
         {
@@ -7406,10 +7705,11 @@ 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& dc, const wxArrayInt& rows)
 {
     if ( !m_numRows )
         return;
@@ -7445,17 +7745,14 @@ void wxGrid::DrawRowLabel( wxDC& dc, int row )
     int rowTop = GetRowTop(row),
         rowBottom = GetRowBottom(row) - 1;
 
-    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW),1, wxSOLID) );
-    dc.DrawLine( m_rowLabelWidth-1, rowTop,
-                 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( 1, rowTop, 1, rowBottom );
-    dc.DrawLine( 1, rowTop, m_rowLabelWidth-1, rowTop );
+    dc.DrawLine( 1, rowTop, m_rowLabelWidth - 1, rowTop );
 #endif
 
     dc.SetBackgroundMode( wxTRANSPARENT );
@@ -7480,7 +7777,7 @@ void wxGrid::DrawColLabels( wxDC& dc,const wxArrayInt& cols )
     size_t i;
     size_t numLabels = cols.GetCount();
 
-    for ( i = 0;  i < numLabels;  i++ )
+    for ( i = 0; i < numLabels; i++ )
     {
         DrawColLabel( dc, cols[i] );
     }
@@ -7507,11 +7804,9 @@ void wxGrid::DrawColLabel( wxDC& dc, int col )
 #else
     int colRight = GetColRight(col) - 1;
 
-    dc.SetPen( wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW), 1, wxSOLID) );
+    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 );
 
@@ -7547,7 +7842,7 @@ void wxGrid::DrawTextRectangle( wxDC& dc,
     StringToLines( value, lines );
 
     // Forward to new API.
-    DrawTextRectangle(  dc,
+    DrawTextRectangle( dc,
         lines,
         rect,
         horizAlign,
@@ -7555,32 +7850,32 @@ void wxGrid::DrawTextRectangle( wxDC& dc,
         textOrientation );
 }
 
-void wxGrid::DrawTextRectangle( wxDC& dc,
+// 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 )
+                               int textOrientation)
 {
-    long textWidth = 0, textHeight = 0;
-    long lineWidth = 0, lineHeight = 0;
-    int nLines;
+    if ( lines.empty() )
+        return;
 
-    dc.SetClippingRegion( rect );
+    wxDCClipper clip(dc, rect);
 
-    nLines = lines.GetCount();
-    if ( nLines > 0 )
-    {
-        int l;
-        float x = 0.0, y = 0.0;
+    long textWidth,
+         textHeight;
 
-        if ( textOrientation == wxHORIZONTAL )
-            GetTextBoxSize(dc, lines, &textWidth, &textHeight);
-        else
-            GetTextBoxSize( dc, lines, &textHeight, &textWidth );
+    if ( textOrientation == wxHORIZONTAL )
+        GetTextBoxSize( dc, lines, &textWidth, &textHeight );
+    else
+        GetTextBoxSize( dc, lines, &textHeight, &textWidth );
 
-        switch ( vertAlign )
-        {
+    int x = 0,
+        y = 0;
+    switch ( vertAlign )
+    {
         case wxALIGN_BOTTOM:
             if ( textOrientation == wxHORIZONTAL )
                 y = rect.y + (rect.height - textHeight - 1);
@@ -7590,9 +7885,9 @@ void wxGrid::DrawTextRectangle( wxDC& dc,
 
         case wxALIGN_CENTRE:
             if ( textOrientation == wxHORIZONTAL )
-                y = rect.y + ((rect.height - textHeight)/2);
+                y = rect.y + ((rect.height - textHeight) / 2);
             else
-                x = rect.x + ((rect.width - textWidth)/2);
+                x = rect.x + ((rect.width - textWidth) / 2);
             break;
 
         case wxALIGN_TOP:
@@ -7602,15 +7897,26 @@ void wxGrid::DrawTextRectangle( wxDC& dc,
             else
                 x = rect.x + 1;
             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];
 
-        // Align each line of a multi-line label
-        for ( l = 0; l < nLines; l++ )
+        if ( line.empty() )
         {
-            dc.GetTextExtent(lines[l], &lineWidth, &lineHeight);
+            *(textOrientation == wxHORIZONTAL ? &y : &x) += dc.GetCharHeight();
+            continue;
+        }
 
-            switch ( horizAlign )
-            {
+        long lineWidth,
+             lineHeight;
+        dc.GetTextExtent(line, &lineWidth, &lineHeight);
+
+        switch ( horizAlign )
+        {
             case wxALIGN_RIGHT:
                 if ( textOrientation == wxHORIZONTAL )
                     x = rect.x + (rect.width - lineWidth - 1);
@@ -7632,22 +7938,19 @@ void wxGrid::DrawTextRectangle( wxDC& dc,
                 else
                     y = rect.y + rect.height - 1;
                 break;
-            }
+        }
 
-            if ( textOrientation == wxHORIZONTAL )
-            {
-                dc.DrawText( lines[l], (int)x, (int)y );
-                y += lineHeight;
-            }
-            else
-            {
-                dc.DrawRotatedText( lines[l], (int)x, (int)y, 90.0 );
-                x += lineHeight;
-            }
+        if ( textOrientation == wxHORIZONTAL )
+        {
+            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.
@@ -7675,6 +7978,7 @@ void wxGrid::StringToLines( const wxString& value, wxArrayString& lines )
         {
             lines.Add( value.Mid(startPos, pos) );
         }
+
         startPos += pos + 1;
     }
 
@@ -7693,7 +7997,7 @@ void wxGrid::GetTextBoxSize( const wxDC& dc,
     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 );
@@ -7773,8 +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;
@@ -7784,7 +8087,7 @@ void wxGrid::EnableCellEditControl( bool enable )
         else
         {
             //FIXME:add veto support
-            SendEvent( wxEVT_GRID_EDITOR_HIDDEN);
+            SendEvent( wxEVT_GRID_EDITOR_HIDDEN );
 
             HideCellEditControl();
             SaveEditControlValue();
@@ -7809,7 +8112,6 @@ bool wxGrid::CanEnableCellControl() const
 {
     return m_editable && (m_currentCellCoords != wxGridNoCellCoords) &&
         !IsCurrentCellReadOnly();
-
 }
 
 bool wxGrid::IsCellEditControlEnabled() const
@@ -7872,23 +8174,19 @@ void wxGrid::ShowCellEditControl()
             }
 
             // convert to scrolled coords
-            //
             CalcScrolledPosition( rect.x, rect.y, &rect.x, &rect.y );
 
             int nXMove = 0;
             if (rect.x < 0)
                 nXMove = rect.x;
 
-            // done in PaintBackground()
-#if 0
             // 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
             // However, don't allow x or y to become negative
@@ -7955,24 +8253,12 @@ void wxGrid::ShowCellEditControl()
 
             editor->SetCellAttr( attr );
             editor->SetSize( rect );
-            editor->GetControl()->Move(
-                editor->GetControl()->GetPosition().x + nXMove,
-                editor->GetControl()->GetPosition().y );
+            if (nXMove != 0)
+                editor->GetControl()->Move(
+                    editor->GetControl()->GetPosition().x + nXMove,
+                    editor->GetControl()->GetPosition().y );
             editor->Show( true, attr );
 
-            int colXPos = 0;
-            for (int i = 0; i < m_currentCellCoords.GetCol(); i++)
-            {
-                colXPos += GetColSize( i );
-            }
-
-            int xUnit = 1, yUnit = 1;
-            GetScrollPixelsPerUnit( &xUnit, &yUnit );
-            if (m_currentCellCoords.GetCol() != 0)
-                Scroll( colXPos / xUnit - 1, GetScrollPos( wxVERTICAL ) );
-            else
-                Scroll( colXPos / xUnit, GetScrollPos( wxVERTICAL ) );
-
             // recalc dimensions in case we need to
             // expand the scrolled window to account for editor
             CalcDimensions();
@@ -8056,7 +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;
     }
@@ -8139,10 +8425,65 @@ int wxGrid::YToRow( int y )
                            m_minAcceptableRowHeight, m_rowBottoms, m_numRows, false);
 }
 
-int wxGrid::XToCol( int x )
+int wxGrid::XToCol( int x, bool clipToMinMax )
 {
-    return CoordToRowOrCol(x, m_defaultColWidth,
-                           m_minAcceptableColWidth, m_colRights, m_numCols, false);
+    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
@@ -8176,7 +8517,7 @@ int wxGrid::XToEdgeOfCol( int x )
 
     if ( GetColWidth(i) > WXGRID_LABEL_EDGE_ZONE )
     {
-        // We know that we are in column i,  test whether we are
+        // 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;
@@ -8241,7 +8582,6 @@ bool wxGrid::IsVisible( int row, int col, bool wholeCellVisible )
     if ( wholeCellVisible )
     {
         // is the cell wholly visible ?
-        //
         return ( left >= 0 && right <= cw &&
                  top >= 0 && bottom <= ch );
     }
@@ -8284,7 +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 )
@@ -8295,11 +8635,11 @@ 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...
+            // Sometimes GRID_SCROLL_LINE / 2 is not enough,
+            // so just add a full scroll unit...
             ypos += m_scrollLineY;
         }
 
@@ -8423,11 +8763,12 @@ 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 = m_currentCellCoords.GetCol() - 1;
+            int col = GetColAt( GetColPos( m_currentCellCoords.GetCol() ) - 1 );
             ClearSelection();
+
             MakeCellVisible( row, col );
             SetCurrentCell( row, col );
         }
@@ -8457,11 +8798,12 @@ 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 = m_currentCellCoords.GetCol() + 1;
+            int col = GetColAt( GetColPos( m_currentCellCoords.GetCol() ) + 1 );
             ClearSelection();
+
             MakeCellVisible( row, col );
             SetCurrentCell( row, col );
         }
@@ -8490,7 +8832,7 @@ bool wxGrid::MovePageUp()
 
         if ( newRow == row )
         {
-            //row > 0 , so newrow can never be less than 0 here.
+            // row > 0, so newRow can never be less than 0 here.
             newRow = row - 1;
         }
 
@@ -8518,7 +8860,7 @@ bool wxGrid::MovePageDown()
         int newRow = internalYToRow( y + ch );
         if ( newRow == row )
         {
-            // row < m_numRows , so newrow can't overflow here.
+            // row < m_numRows, so newRow can't overflow here.
             newRow = row + 1;
         }
 
@@ -8884,7 +9226,8 @@ void wxGrid::SetColLabelSize( int height )
         else if ( m_colLabelHeight == 0 )
         {
             m_colLabelWin->Show( true );
-            if ( m_rowLabelWidth > 0 ) m_cornerLabelWin->Show( true );
+            if ( m_rowLabelWidth > 0 )
+                m_cornerLabelWin->Show( true );
         }
 
         m_colLabelHeight = height;
@@ -9010,14 +9353,10 @@ void wxGrid::SetColLabelAlignment( int horiz, int vert )
 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 )
@@ -9412,7 +9751,7 @@ wxGridCellAttr *wxGrid::GetCellAttr(int row, int col) const
     {
         if ( !LookupAttr(row, col, &attr) )
         {
-            attr = m_table ? m_table->GetAttr(row, col , wxGridCellAttr::Any)
+            attr = m_table ? m_table->GetAttr(row, col, wxGridCellAttr::Any)
                            : (wxGridCellAttr *)NULL;
             CacheAttr(row, col, attr);
         }
@@ -9683,19 +10022,19 @@ 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 )
@@ -9711,7 +10050,7 @@ wxGridCellEditor* wxGrid::GetDefaultEditorForType(const wxString& typeName) cons
     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 )
@@ -9787,7 +10126,7 @@ 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;
     }
@@ -9820,7 +10159,7 @@ void wxGrid::SetColSize( int col, int width )
     // 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 whe should test against the weaker
+    // 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
@@ -9834,16 +10173,16 @@ void wxGrid::SetColSize( int col, int width )
         InitColWidths();
     }
 
-    // if < 0 calc new width from label
+    // 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;
+        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 );
@@ -9851,8 +10190,10 @@ void wxGrid::SetColSize( int col, int width )
     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;
     }
 
@@ -9956,9 +10297,7 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
             extent = column ? size.x : size.y;
             if ( extent > extentMax )
-            {
                 extentMax = extent;
-            }
 
             renderer->DecRef();
         }
@@ -9981,9 +10320,7 @@ void wxGrid::AutoSizeColOrRow( int colOrRow, bool setAsMin, bool column )
 
     extent = column ? w : h;
     if ( extent > extentMax )
-    {
         extentMax = extent;
-    }
 
     if ( !extentMax )
     {
@@ -10050,9 +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);
     }
@@ -10096,7 +10431,7 @@ void wxGrid::AutoSize()
     // scrollbar steps
     wxSize sizeFit(
         GetScrollX(size.x + m_extraWidth + 1) * m_scrollLineX,
-        GetScrollY(size.y + m_extraHeight + 1) * m_scrollLineY);
+        GetScrollY(size.y + m_extraHeight + 1) * m_scrollLineY );
 
     // distribute the extra space between the columns/rows to avoid having
     // extra white space
@@ -10185,7 +10520,7 @@ void wxGrid::AutoSizeColLabelSize( int col )
     long w, h;
 
     // Hide the edit control, so it
-    // won't interfer with drag-shrinking.
+    // won't interfere with drag-shrinking.
     if ( IsCellEditControlShown() )
     {
         HideCellEditControl();
@@ -10220,7 +10555,7 @@ wxSize wxGrid::DoGetBestSize() const
         height = 80;
 
     // Round up to a multiple the scroll rate
-    // NOTE: this still doesn't get rid  of the scrollbars;
+    // NOTE: this still doesn't get rid of the scrollbars;
     // is there any magic incantation for that?
     int xpu, ypu;
     GetScrollPixelsPerUnit(&xpu, &ypu);