Use the app name, not display name, as debug report name,

[wxWidgets.git] / src / generic / datavgen.cpp

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index f6e109d249f6323d53bbb5e88e064a7b89fd4564..7887465b1c405edc8d937818c7d03b2d5e8edd1c 100644 (file)
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -69,9 +69,10 @@ static const int EXPANDER_OFFSET = 4;
 static const int EXPANDER_OFFSET = 1;
 #endif
 
 static const int EXPANDER_OFFSET = 1;
 #endif
 

-//Below is the compare stuff
-//For the generic implements, both the leaf nodes and the nodes are sorted for fast search when needed
-static wxDataViewModel * g_model;
+// Below is the compare stuff.
+// For the generic implementation, both the leaf nodes and the nodes are sorted for
+// fast search when needed
+static wxDataViewModel* g_model;

 static int g_column = -2;
 static bool g_asending = true;
 
 static int g_column = -2;
 static bool g_asending = true;
 


@@ -98,6 +99,7 @@ protected:
         return *(GetOwner()->GetColumn(idx));
     }
 
         return *(GetOwner()->GetColumn(idx));
     }
 

+    // FIXME: currently unused

     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
     {
         wxDataViewCtrl * const owner = GetOwner();
     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle)
     {
         wxDataViewCtrl * const owner = GetOwner();


@@ -176,7 +178,7 @@ private:
             event.Skip();
     }
 
             event.Skip();
     }
 

-    void OnEndResize(wxHeaderCtrlEvent& event)
+    void OnResize(wxHeaderCtrlEvent& event)

     {
         wxDataViewCtrl * const owner = GetOwner();
 
     {
         wxDataViewCtrl * const owner = GetOwner();
 


@@ -189,7 +191,7 @@ private:
     {
         wxDataViewCtrl * const owner = GetOwner();
         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),
     {
         wxDataViewCtrl * const owner = GetOwner();
         owner->ColumnMoved(owner->GetColumn(event.GetColumn()),

-                           event.GetNewOrder());
+                        event.GetNewOrder());

     }
 
     DECLARE_EVENT_TABLE()
     }
 
     DECLARE_EVENT_TABLE()


@@ -200,7 +202,8 @@ BEGIN_EVENT_TABLE(wxDataViewHeaderWindow, wxHeaderCtrl)
     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 
     EVT_HEADER_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnClick)
     EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxDataViewHeaderWindow::OnRClick)
 

-    EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnEndResize)
+    EVT_HEADER_RESIZING(wxID_ANY, wxDataViewHeaderWindow::OnResize)
+    EVT_HEADER_END_RESIZE(wxID_ANY, wxDataViewHeaderWindow::OnResize)

 
     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 END_EVENT_TABLE()
 
     EVT_HEADER_END_REORDER(wxID_ANY, wxDataViewHeaderWindow::OnEndReorder)
 END_EVENT_TABLE()


@@ -222,11 +225,13 @@ public:
 //-----------------------------------------------------------------------------
 // wxDataViewTreeNode
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxDataViewTreeNode
 //-----------------------------------------------------------------------------

+

 class wxDataViewTreeNode;
 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 
 class wxDataViewTreeNode;
 WX_DEFINE_ARRAY( wxDataViewTreeNode *, wxDataViewTreeNodes );
 WX_DEFINE_ARRAY( void* , wxDataViewTreeLeaves);
 

-int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2);
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
+                                           wxDataViewTreeNode ** node2);

 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 
 class wxDataViewTreeNode
 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2);
 
 class wxDataViewTreeNode


@@ -346,7 +351,8 @@ private:
     int                  m_subTreeCount;
 };
 
     int                  m_subTreeCount;
 };
 

-int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1, wxDataViewTreeNode ** node2)
+int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
+                                           wxDataViewTreeNode ** node2)

 {
     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 }
 {
     return g_model->Compare( (*node1)->GetItem(), (*node2)->GetItem(), g_column, g_asending );
 }


@@ -357,7 +363,6 @@ int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 }
 
 
 }
 
 

-

 //-----------------------------------------------------------------------------
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------


@@ -445,13 +450,17 @@ public:
     int GetCountPerPage() const;
     int GetEndOfLastCol() const;
     unsigned int GetFirstVisibleRow() const;
     int GetCountPerPage() const;
     int GetEndOfLastCol() const;
     unsigned int GetFirstVisibleRow() const;

-    //I change this method to un const because in the tree view, the displaying number of the tree are changing along with the expanding/collapsing of the tree nodes
+
+    // I change this method to un const because in the tree view,
+    // the displaying number of the tree are changing along with the
+    // expanding/collapsing of the tree nodes

     unsigned int GetLastVisibleRow();
     unsigned int GetRowCount();
 
     wxDataViewItem GetSelection() const;
     wxDataViewSelection GetSelections(){ return m_selection; }
     unsigned int GetLastVisibleRow();
     unsigned int GetRowCount();
 
     wxDataViewItem GetSelection() const;
     wxDataViewSelection GetSelections(){ return m_selection; }

-    void SetSelections( const wxDataViewSelection & sel ) { m_selection = sel; UpdateDisplay(); }
+    void SetSelections( const wxDataViewSelection & sel )
+        { m_selection = sel; UpdateDisplay(); }

     void Select( const wxArrayInt& aSelections );
     void SelectAllRows( bool on );
     void SelectRow( unsigned int row, bool on );
     void Select( const wxArrayInt& aSelections );
     void SelectAllRows( bool on );
     void SelectRow( unsigned int row, bool on );


@@ -476,19 +485,20 @@ public:
     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 
     int GetLineHeight( unsigned int row ) const; // m_lineHeight in fixed mode
     int GetLineAt( unsigned int y ) const;       // y / m_lineHeight in fixed mode
 

-    //Some useful functions for row and item mapping
+    // Some useful functions for row and item mapping

     wxDataViewItem GetItemByRow( unsigned int row ) const;
     int GetRowByItem( const wxDataViewItem & item ) const;
 
     wxDataViewItem GetItemByRow( unsigned int row ) const;
     int GetRowByItem( const wxDataViewItem & item ) const;
 

-    //Methods for building the mapping tree
+    // Methods for building the mapping tree

     void BuildTree( wxDataViewModel  * model );
     void DestroyTree();
     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 
     void BuildTree( wxDataViewModel  * model );
     void DestroyTree();
     void HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column );
     wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column );
 

-    void Expand( unsigned int row ) { OnExpanding( row ); }
-    void Collapse( unsigned int row ) { OnCollapsing( row ); }
+    void Expand( unsigned int row );
+    void Collapse( unsigned int row );

     bool IsExpanded( unsigned int row ) const;
     bool IsExpanded( unsigned int row ) const;

+    bool HasChildren( unsigned int row ) const;

 
 #if wxUSE_DRAG_AND_DROP
     bool EnableDragSource( const wxDataFormat &format );
 
 #if wxUSE_DRAG_AND_DROP
     bool EnableDragSource( const wxDataFormat &format );


@@ -503,14 +513,12 @@ public:
 
 private:
     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;
 
 private:
     wxDataViewTreeNode * GetTreeNodeByRow( unsigned int row ) const;

-    //We did not need this temporarily
-    //wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );
+    // We did not need this temporarily
+    // wxDataViewTreeNode * GetTreeNodeByItem( const wxDataViewItem & item );

 
     int RecalculateCount();
 
     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );
 
     int RecalculateCount();
 
     wxDataViewEvent SendExpanderEvent( wxEventType type, const wxDataViewItem & item );

-    void OnExpanding( unsigned int row );
-    void OnCollapsing( unsigned int row );

 
     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 
 
     wxDataViewTreeNode * FindNode( const wxDataViewItem & item );
 


@@ -543,8 +551,8 @@ private:
 
     // for double click logic
     unsigned int m_lineLastClicked,
 
     // for double click logic
     unsigned int m_lineLastClicked,

-           m_lineBeforeLastClicked,
-           m_lineSelectSingleOnUp;
+        m_lineBeforeLastClicked,
+        m_lineSelectSingleOnUp;

 
     // the pen used to draw horiz/vertical rules
     wxPen m_penRule;
 
     // the pen used to draw horiz/vertical rules
     wxPen m_penRule;


@@ -552,11 +560,13 @@ private:
     // the pen used to draw the expander and the lines
     wxPen m_penExpander;
 
     // the pen used to draw the expander and the lines
     wxPen m_penExpander;
 

-    //This is the tree structure of the model
+    // This is the tree structure of the model

     wxDataViewTreeNode * m_root;
     int m_count;
     wxDataViewTreeNode * m_root;
     int m_count;

-    //This is the tree node under the cursor
+
+    // This is the tree node under the cursor

     wxDataViewTreeNode * m_underMouse;
     wxDataViewTreeNode * m_underMouse;

+

 private:
     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
     DECLARE_EVENT_TABLE()
 private:
     DECLARE_DYNAMIC_CLASS(wxDataViewMainWindow)
     DECLARE_EVENT_TABLE()


@@ -583,7 +593,7 @@ public:
     virtual bool Cleared()
         { return m_mainWindow->Cleared(); }
     virtual void Resort()
     virtual bool Cleared()
         { return m_mainWindow->Cleared(); }
     virtual void Resort()

-         { m_mainWindow->Resort(); }
+        { m_mainWindow->Resort(); }

 
     wxDataViewMainWindow    *m_mainWindow;
 };
 
     wxDataViewMainWindow    *m_mainWindow;
 };


@@ -641,7 +651,7 @@ int wxDataViewRenderer::CalculateAlignment() const
     if (m_align == wxDVR_DEFAULT_ALIGNMENT)
     {
         if (GetOwner() == NULL)
     if (m_align == wxDVR_DEFAULT_ALIGNMENT)
     {
         if (GetOwner() == NULL)

-           return wxALIGN_LEFT | wxALIGN_CENTRE_VERTICAL;
+        return wxALIGN_LEFT | wxALIGN_CENTRE_VERTICAL;

 
         return GetOwner()->GetAlignment() | wxALIGN_CENTRE_VERTICAL;
     }
 
         return GetOwner()->GetAlignment() | wxALIGN_CENTRE_VERTICAL;
     }


@@ -656,19 +666,22 @@ int wxDataViewRenderer::CalculateAlignment() const
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 
 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewCustomRenderer, wxDataViewRenderer)
 
 wxDataViewCustomRenderer::wxDataViewCustomRenderer( const wxString &varianttype,

-                          wxDataViewCellMode mode, int align ) :
+                        wxDataViewCellMode mode, int align ) :

     wxDataViewRenderer( varianttype, mode, align )
 {
 }
 
     wxDataViewRenderer( varianttype, mode, align )
 {
 }
 

-void wxDataViewCustomRenderer::RenderText( const wxString &text, int xoffset, wxRect cell, wxDC *dc, int state )
+void wxDataViewCustomRenderer::RenderText( const wxString &text, int xoffset,
+                                           wxRect cell, wxDC *dc, int state )

 {
     wxDataViewCtrl *view = GetOwner()->GetOwner();
     wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
                         wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
                         view->GetForegroundColour();
     dc->SetTextForeground(col);
 {
     wxDataViewCtrl *view = GetOwner()->GetOwner();
     wxColour col = (state & wxDATAVIEW_CELL_SELECTED) ?
                         wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) :
                         view->GetForegroundColour();
     dc->SetTextForeground(col);

-    dc->DrawText( text, cell.x + xoffset, cell.y + ((cell.height - dc->GetCharHeight()) / 2));
+    dc->DrawText( text,
+                  cell.x + xoffset,
+                  cell.y + ((cell.height - dc->GetCharHeight()) / 2));

 }
 
 // ---------------------------------------------------------
 }
 
 // ---------------------------------------------------------


@@ -695,7 +708,7 @@ bool wxDataViewTextRenderer::GetValue( wxVariant& WXUNUSED(value) ) const
     return false;
 }
 
     return false;
 }
 

-bool wxDataViewTextRenderer::HasEditorCtrl()
+bool wxDataViewTextRenderer::HasEditorCtrl() const

 {
     return true;
 }
 {
     return true;
 }


@@ -703,9 +716,15 @@ bool wxDataViewTextRenderer::HasEditorCtrl()
 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
         wxRect labelRect, const wxVariant &value )
 {
 wxControl* wxDataViewTextRenderer::CreateEditorCtrl( wxWindow *parent,
         wxRect labelRect, const wxVariant &value )
 {

-    return new wxTextCtrl( parent, wxID_ANY, value,
-                           wxPoint(labelRect.x,labelRect.y),
-                           wxSize(labelRect.width,labelRect.height) );
+    wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, value,
+                                       wxPoint(labelRect.x,labelRect.y),
+                                       wxSize(labelRect.width,labelRect.height) );
+
+    // select the text in the control an place the cursor at the end
+    ctrl->SetInsertionPointEnd();
+    ctrl->SelectAll();
+
+    return ctrl;

 }
 
 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )
 }
 
 bool wxDataViewTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant &value )


@@ -725,12 +744,8 @@ wxSize wxDataViewTextRenderer::GetSize() const
 {
     const wxDataViewCtrl *view = GetView();
     if (!m_text.empty())
 {
     const wxDataViewCtrl *view = GetView();
     if (!m_text.empty())

-    {
-        int x,y;
-        view->GetTextExtent( m_text, &x, &y );
-        return wxSize( x, y );
-    }
-    return wxSize(80,20);
+        return view->wxWindowBase::GetTextExtent( m_text );
+    return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);

 }
 
 // ---------------------------------------------------------
 }
 
 // ---------------------------------------------------------


@@ -761,13 +776,13 @@ bool wxDataViewTextRendererAttr::Render( wxRect cell, wxDC *dc, int WXUNUSED(sta
 
         if (m_attr.GetBold() || m_attr.GetItalic())
         {
 
         if (m_attr.GetBold() || m_attr.GetItalic())
         {

-             font = dc->GetFont();
-             wxFont myfont = font;
-             if (m_attr.GetBold())
-                 myfont.SetWeight( wxFONTWEIGHT_BOLD );
-             if (m_attr.GetItalic())
-                 myfont.SetStyle( wxFONTSTYLE_ITALIC );
-             dc->SetFont( myfont );
+            font = dc->GetFont();
+            wxFont myfont = font;
+            if (m_attr.GetBold())
+                myfont.SetWeight( wxFONTWEIGHT_BOLD );
+            if (m_attr.GetItalic())
+                myfont.SetStyle( wxFONTSTYLE_ITALIC );
+            dc->SetFont( myfont );

         }
     }
 
         }
     }
 


@@ -831,7 +846,7 @@ wxSize wxDataViewBitmapRenderer::GetSize() const
     else if (m_icon.Ok())
         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 
     else if (m_icon.Ok())
         return wxSize( m_icon.GetWidth(), m_icon.GetHeight() );
 

-    return wxSize(16,16);
+    return wxSize(wxDVC_DEFAULT_RENDERER_SIZE,wxDVC_DEFAULT_RENDERER_SIZE);

 }
 
 // ---------------------------------------------------------
 }
 
 // ---------------------------------------------------------


@@ -861,14 +876,6 @@ bool wxDataViewToggleRenderer::GetValue( wxVariant &WXUNUSED(value) ) const
 
 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 {
 
 bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state) )
 {

-    // User wxRenderer here
-
-    wxRect rect;
-    rect.x = cell.x + cell.width/2 - 10;
-    rect.width = 20;
-    rect.y = cell.y + cell.height/2 - 10;
-    rect.height = 20;
-

     int flags = 0;
     if (m_toggle)
         flags |= wxCONTROL_CHECKED;
     int flags = 0;
     if (m_toggle)
         flags |= wxCONTROL_CHECKED;


@@ -878,15 +885,15 @@ bool wxDataViewToggleRenderer::Render( wxRect cell, wxDC *dc, int WXUNUSED(state
     wxRendererNative::Get().DrawCheckBox(
             GetOwner()->GetOwner(),
             *dc,
     wxRendererNative::Get().DrawCheckBox(
             GetOwner()->GetOwner(),
             *dc,

-            rect,
+            cell,

             flags );
 
     return true;
 }
 
 bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
             flags );
 
     return true;
 }
 
 bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),

-                                         wxDataViewModel *model,
-                                         const wxDataViewItem & item, unsigned int col)
+                                        wxDataViewModel *model,
+                                        const wxDataViewItem & item, unsigned int col)

 {
     bool value = !m_toggle;
     wxVariant variant = value;
 {
     bool value = !m_toggle;
     wxVariant variant = value;


@@ -897,7 +904,9 @@ bool wxDataViewToggleRenderer::Activate( wxRect WXUNUSED(cell),
 
 wxSize wxDataViewToggleRenderer::GetSize() const
 {
 
 wxSize wxDataViewToggleRenderer::GetSize() const
 {

-    return wxSize(20,20);
+    // the window parameter is not used by GetCheckBoxSize() so it's
+    // safe to pass NULL
+    return wxRendererNative::Get().GetCheckBoxSize(NULL);

 }
 
 // ---------------------------------------------------------
 }
 
 // ---------------------------------------------------------


@@ -1049,7 +1058,7 @@ wxSize wxDataViewDateRenderer::GetSize() const
 }
 
 bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,
 }
 
 bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *model,

-                                       const wxDataViewItem & item, unsigned int col )
+                                    const wxDataViewItem & item, unsigned int col )

 {
     wxVariant variant;
     model->GetValue( variant, item, col );
 {
     wxVariant variant;
     model->GetValue( variant, item, col );


@@ -1075,7 +1084,7 @@ bool wxDataViewDateRenderer::Activate( wxRect WXUNUSED(cell), wxDataViewModel *m
 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)
 
 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(
 IMPLEMENT_CLASS(wxDataViewIconTextRenderer, wxDataViewCustomRenderer)
 
 wxDataViewIconTextRenderer::wxDataViewIconTextRenderer(

-  const wxString &varianttype, wxDataViewCellMode mode, int align ) :
+const wxString &varianttype, wxDataViewCellMode mode, int align ) :

     wxDataViewCustomRenderer( varianttype, mode, align )
 {
     SetMode(mode);
     wxDataViewCustomRenderer( varianttype, mode, align )
 {
     SetMode(mode);


@@ -1127,19 +1136,39 @@ wxSize wxDataViewIconTextRenderer::GetSize() const
     return wxSize(80,20);
 }
 
     return wxSize(80,20);
 }
 

-wxControl *
-wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow * WXUNUSED(parent),
-                                             wxRect WXUNUSED(labelRect),
-                                             const wxVariant& WXUNUSED(value))
+wxControl* wxDataViewIconTextRenderer::CreateEditorCtrl(wxWindow *parent, wxRect labelRect, const wxVariant& value)

 {
 {

-    return NULL;
+    wxDataViewIconText iconText;
+    iconText << value;
+
+    wxString text = iconText.GetText();
+
+    // adjust the label rect to take the width of the icon into account
+    if (iconText.GetIcon().IsOk())
+    {
+        int w = iconText.GetIcon().GetWidth() + 4;
+        labelRect.x += w;
+        labelRect.width -= w;
+    }
+
+    wxTextCtrl* ctrl = new wxTextCtrl( parent, wxID_ANY, text,
+                                       wxPoint(labelRect.x,labelRect.y),
+                                       wxSize(labelRect.width,labelRect.height) );
+
+    // select the text in the control an place the cursor at the end
+    ctrl->SetInsertionPointEnd();
+    ctrl->SelectAll();
+
+    return ctrl;

 }
 
 }
 

-bool
-wxDataViewIconTextRenderer::GetValueFromEditorCtrl(wxControl* WXUNUSED(editor),
-                                                   wxVariant& WXUNUSED(value))
+bool wxDataViewIconTextRenderer::GetValueFromEditorCtrl( wxControl *editor, wxVariant& value )

 {
 {

-    return false;
+    wxTextCtrl *text = (wxTextCtrl*) editor;
+
+    wxDataViewIconText iconText(text->GetValue(), m_value.GetIcon());
+    value << iconText;
+    return true;

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------


@@ -1152,7 +1181,7 @@ class wxBitmapCanvas: public wxWindow
 {
 public:
     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :
 {
 public:
     wxBitmapCanvas( wxWindow *parent, const wxBitmap &bitmap, const wxSize &size ) :

-       wxWindow( parent, wxID_ANY, wxPoint(0,0), size )
+    wxWindow( parent, wxID_ANY, wxPoint(0,0), size )

     {
         m_bitmap = bitmap;
         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );
     {
         m_bitmap = bitmap;
         Connect( wxEVT_PAINT, wxPaintEventHandler(wxBitmapCanvas::OnPaint) );


@@ -1171,7 +1200,7 @@ class wxDataViewDropSource: public wxDropSource
 {
 public:
     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :
 {
 public:
     wxDataViewDropSource( wxDataViewMainWindow *win, unsigned int row ) :

-         wxDropSource( win )
+        wxDropSource( win )

     {
         m_win = win;
         m_row = row;
     {
         m_win = win;
         m_row = row;


@@ -1200,12 +1229,12 @@ public:
             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
             m_dist_x -= indent;
             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,
             wxBitmap ib = m_win->CreateItemBitmap( m_row, indent );
             m_dist_x -= indent;
             m_hint = new wxFrame( m_win->GetParent(), wxID_ANY, wxEmptyString,

-                                         wxPoint(pos.x - m_dist_x, pos.y + 5 ),
-                                         ib.GetSize(),
-                                         wxFRAME_TOOL_WINDOW |
-                                         wxFRAME_FLOAT_ON_PARENT |
-                                         wxFRAME_NO_TASKBAR |
-                                         wxNO_BORDER );
+                                        wxPoint(pos.x - m_dist_x, pos.y + 5 ),
+                                        ib.GetSize(),
+                                        wxFRAME_TOOL_WINDOW |
+                                        wxFRAME_FLOAT_ON_PARENT |
+                                        wxFRAME_NO_TASKBAR |
+                                        wxNO_BORDER );

             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
             m_hint->Show();
         }
             new wxBitmapCanvas( m_hint, ib, ib.GetSize() );
             m_hint->Show();
         }


@@ -1235,30 +1264,30 @@ public:
     }
 
     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )
     }
 
     virtual wxDragResult OnDragOver( wxCoord x, wxCoord y, wxDragResult def )

-        {
-           wxDataFormat format = GetMatchingPair();
-           if (format == wxDF_INVALID)
-              return wxDragNone;
-           return m_win->OnDragOver( format, x, y, def);
-        }
+    {
+        wxDataFormat format = GetMatchingPair();
+        if (format == wxDF_INVALID)
+            return wxDragNone;
+        return m_win->OnDragOver( format, x, y, def);
+    }

 
     virtual bool OnDrop( wxCoord x, wxCoord y )
 
     virtual bool OnDrop( wxCoord x, wxCoord y )

-        {
-           wxDataFormat format = GetMatchingPair();
-           if (format == wxDF_INVALID)
-              return false;
-           return m_win->OnDrop( format, x, y );
-        }
+    {
+        wxDataFormat format = GetMatchingPair();
+        if (format == wxDF_INVALID)
+            return false;
+        return m_win->OnDrop( format, x, y );
+    }

 
     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )
 
     virtual wxDragResult OnData( wxCoord x, wxCoord y, wxDragResult def )

-        {
-           wxDataFormat format = GetMatchingPair();
-           if (format == wxDF_INVALID)
-              return wxDragNone;
-           if (!GetData())
-              return wxDragNone;
-           return m_win->OnData( format, x, y, def );
-        }
+    {
+        wxDataFormat format = GetMatchingPair();
+        if (format == wxDF_INVALID)
+            return wxDragNone;
+        if (!GetData())
+            return wxDragNone;
+        return m_win->OnData( format, x, y, def );
+    }

 
     virtual void OnLeave()
         { m_win->OnLeave(); }
 
     virtual void OnLeave()
         { m_win->OnLeave(); }


@@ -1286,8 +1315,9 @@ void wxDataViewRenameTimer::Notify()
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 
 // wxDataViewMainWindow
 //-----------------------------------------------------------------------------
 

-//The tree building helper, declared firstly
-static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node);
+// The tree building helper, declared firstly
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
+                             wxDataViewTreeNode * node);

 
 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
 {
 
 int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
 {


@@ -1296,7 +1326,6 @@ int LINKAGEMODE wxDataViewSelectionCmp( unsigned int row1, unsigned int row2 )
     return -1;
 }
 
     return -1;
 }
 

-

 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
 
 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)
 IMPLEMENT_ABSTRACT_CLASS(wxDataViewMainWindow, wxWindow)
 
 BEGIN_EVENT_TABLE(wxDataViewMainWindow,wxWindow)


@@ -1346,13 +1375,14 @@ wxDataViewMainWindow::wxDataViewMainWindow( wxDataViewCtrl *parent, wxWindowID i
 
     m_penRule = wxPen(GetRuleColour());
 
 
     m_penRule = wxPen(GetRuleColour());
 

-    //Here I compose a pen can draw black lines, maybe there are something system colour to use
+    // compose a pen whichcan draw black lines
+    // TODO: maybe there is something system colour to use

     m_penExpander = wxPen(wxColour(0,0,0));
     m_penExpander = wxPen(wxColour(0,0,0));

-    //Some new added code to deal with the tree structure
+

     m_root = new wxDataViewTreeNode( NULL );
     m_root->SetHasChildren(true);
 
     m_root = new wxDataViewTreeNode( NULL );
     m_root->SetHasChildren(true);
 

-    //Make m_count = -1 will cause the class recaculate the real displaying number of rows.
+    // Make m_count = -1 will cause the class recaculate the real displaying number of rows.

     m_count = -1;
     m_underMouse = NULL;
     UpdateDisplay();
     m_count = -1;
     m_underMouse = NULL;
     UpdateDisplay();


@@ -1395,7 +1425,8 @@ void wxDataViewMainWindow::RemoveDropHint()
     }
 }
 
     }
 }
 

-wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
+wxDragResult wxDataViewMainWindow::OnDragOver( wxDataFormat format, wxCoord x,
+                                               wxCoord y, wxDragResult def )

 {
     int xx = x;
     int yy = y;
 {
     int xx = x;
     int yy = y;


@@ -1469,7 +1500,8 @@ bool wxDataViewMainWindow::OnDrop( wxDataFormat format, wxCoord x, wxCoord y )
     return true;
 }
 
     return true;
 }
 

-wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y, wxDragResult def )
+wxDragResult wxDataViewMainWindow::OnData( wxDataFormat format, wxCoord x, wxCoord y,
+                                           wxDragResult def )

 {
     int xx = x;
     int yy = y;
 {
     int xx = x;
     int yy = y;


@@ -1525,10 +1557,11 @@ wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
     {
         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
         indent = GetOwner()->GetIndent() * node->GetIndentLevel();
     {
         wxDataViewTreeNode *node = GetTreeNodeByRow(row);
         indent = GetOwner()->GetIndent() * node->GetIndentLevel();

-        indent = indent + m_lineHeight;  //try to use the m_lineHeight as the expander space
+        indent = indent + m_lineHeight;
+            // try to use the m_lineHeight as the expander space

 
 

-               if(!node->HasChildren())
-                       delete node;
+        if(!node->HasChildren())
+            delete node;

     }
     width -= indent;
 
     }
     width -= indent;
 


@@ -1590,7 +1623,7 @@ wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
             item_rect.x = x + (width / 2) - (size.x / 2);
         else if (align & wxALIGN_RIGHT)
             item_rect.x = x + width - size.x;
             item_rect.x = x + (width / 2) - (size.x / 2);
         else if (align & wxALIGN_RIGHT)
             item_rect.x = x + width - size.x;

-        //else: wxALIGN_LEFT is the default
+        // else: wxALIGN_LEFT is the default

 
         // vertical alignment:
         item_rect.y = 0;
 
         // vertical alignment:
         item_rect.y = 0;


@@ -1598,15 +1631,15 @@ wxBitmap wxDataViewMainWindow::CreateItemBitmap( unsigned int row, int &indent )
             item_rect.y = (height / 2) - (size.y / 2);
         else if (align & wxALIGN_BOTTOM)
             item_rect.y = height - size.y;
             item_rect.y = (height / 2) - (size.y / 2);
         else if (align & wxALIGN_BOTTOM)
             item_rect.y = height - size.y;

-        //else: wxALIGN_TOP is the default
+        // else: wxALIGN_TOP is the default

 
         // add padding
         item_rect.x += PADDING_RIGHTLEFT;
         item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
 
 
         // add padding
         item_rect.x += PADDING_RIGHTLEFT;
         item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
 

-        //dc.SetClippingRegion( item_rect );
+        // dc.SetClippingRegion( item_rect );

         cell->Render( item_rect, &dc, 0 );
         cell->Render( item_rect, &dc, 0 );

-        //dc.DestroyClippingRegion();
+        // dc.DestroyClippingRegion();

 
         x += width;
     }
 
         x += width;
     }


@@ -1641,8 +1674,14 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
     unsigned int item_count =
         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),
     unsigned int item_start = GetLineAt( wxMax(0,update.y) );
     unsigned int item_count =
         wxMin( (int)(  GetLineAt( wxMax(0,update.y+update.height) ) - item_start + 1),

-               (int)(GetRowCount( ) - item_start));
+            (int)(GetRowCount( ) - item_start));

     unsigned int item_last = item_start + item_count;
     unsigned int item_last = item_start + item_count;

+    // Get the parent of DataViewCtrl
+    wxWindow *parent = GetParent()->GetParent();
+    wxDataViewEvent cache_event(wxEVT_COMMAND_DATAVIEW_CACHE_HINT, parent->GetId());
+    cache_event.SetEventObject(GetParent());
+    cache_event.SetCache(item_start, item_last - 1);
+    parent->ProcessWindowEvent(cache_event);

 
     // compute which columns needs to be redrawn
     unsigned int cols = GetOwner()->GetColumnCount();
 
     // compute which columns needs to be redrawn
     unsigned int cols = GetOwner()->GetColumnCount();


@@ -1681,7 +1720,7 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
         dc.SetPen(m_penRule);
         dc.SetBrush(*wxTRANSPARENT_BRUSH);
 
         dc.SetPen(m_penRule);
         dc.SetBrush(*wxTRANSPARENT_BRUSH);
 

-        for (unsigned int i = item_start; i <= item_last+1; i++)
+        for (unsigned int i = item_start; i <= item_last; i++)

         {
             int y = GetLineStart( i );
             dc.DrawLine(x_start, y, x_last, y);
         {
             int y = GetLineStart( i );
             dc.DrawLine(x_start, y, x_last, y);


@@ -1739,7 +1778,7 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
     if (m_dropHint)
     {
         wxRect rect( x_start, GetLineStart( m_dropHintLine ),
     if (m_dropHint)
     {
         wxRect rect( x_start, GetLineStart( m_dropHintLine ),

-                     x_last, GetLineHeight( m_dropHintLine ) );
+                    x_last, GetLineHeight( m_dropHintLine ) );

         dc.SetPen( *wxBLACK_PEN );
         dc.SetBrush( *wxTRANSPARENT_BRUSH );
         dc.DrawRectangle( rect );
         dc.SetPen( *wxBLACK_PEN );
         dc.SetBrush( *wxTRANSPARENT_BRUSH );
         dc.DrawRectangle( rect );


@@ -1759,7 +1798,6 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
     cell_rect.x = x_start;
     for (unsigned int i = col_start; i < col_last; i++)
     {
     cell_rect.x = x_start;
     for (unsigned int i = col_start; i < col_last; i++)
     {

-

         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
         wxDataViewRenderer *cell = col->GetRenderer();
         cell_rect.width = col->GetWidth();
         wxDataViewColumn *col = GetOwner()->GetColumnAt( i );
         wxDataViewRenderer *cell = col->GetRenderer();
         cell_rect.width = col->GetWidth();


@@ -1782,12 +1820,13 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 
                 dataitem = node->GetItem();
 
 
                 dataitem = node->GetItem();
 

-                if ((i > 0) && model->IsContainer(dataitem) && !model->HasContainerColumns(dataitem))
+                if ((i > 0) && model->IsContainer(dataitem) &&
+                    !model->HasContainerColumns(dataitem))

                     continue;
             }
             else
             {
                     continue;
             }
             else
             {

-                dataitem = wxDataViewItem( wxUIntToPtr(item) );
+                dataitem = wxDataViewItem( wxUIntToPtr(item+1) );

             }
 
             model->GetValue( value, dataitem, col->GetModelColumn());
             }
 
             model->GetValue( value, dataitem, col->GetModelColumn());


@@ -1804,22 +1843,27 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 
             // update cell_rect
             cell_rect.y = GetLineStart( item );
 
             // update cell_rect
             cell_rect.y = GetLineStart( item );

-            cell_rect.height = GetLineHeight( item );     // -1 is for the horizontal rules (?)
+            cell_rect.height = GetLineHeight( item );

 
 

-            //Draw the expander here.
+            // Draw the expander here.

             int indent = 0;
             if ((!IsVirtualList()) && (col == expander))
             {
                 indent = node->GetIndentLevel();
 
             int indent = 0;
             if ((!IsVirtualList()) && (col == expander))
             {
                 indent = node->GetIndentLevel();
 

-                //Calculate the indent first
+                // Calculate the indent first

                 indent = cell_rect.x + GetOwner()->GetIndent() * indent;
 
                 int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;
                 indent = cell_rect.x + GetOwner()->GetIndent() * indent;
 
                 int expander_width = m_lineHeight - 2*EXPANDER_MARGIN;

+

                 // change the cell_rect.x to the appropriate pos
                 // change the cell_rect.x to the appropriate pos

-                int  expander_x = indent + EXPANDER_MARGIN;
-                int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2) - (expander_width/2) - EXPANDER_OFFSET;
-                indent = indent + m_lineHeight;  //try to use the m_lineHeight as the expander space
+                int expander_x = indent + EXPANDER_MARGIN;
+                int expander_y = cell_rect.y + EXPANDER_MARGIN + (GetLineHeight(item) / 2)
+                                 - (expander_width/2) - EXPANDER_OFFSET;
+
+                indent = indent + m_lineHeight;
+                    // try to use the m_lineHeight as the expander space
+

                 dc.SetPen( m_penExpander );
                 dc.SetBrush( wxNullBrush );
                 if( node->HasChildren() )
                 dc.SetPen( m_penExpander );
                 dc.SetBrush( wxNullBrush );
                 if( node->HasChildren() )


@@ -1831,12 +1875,14 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
                         flag |= wxCONTROL_CURRENT;
                     }
                     if( node->IsOpen() )
                         flag |= wxCONTROL_CURRENT;
                     }
                     if( node->IsOpen() )

-                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag|wxCONTROL_EXPANDED );
+                        wxRendererNative::Get().DrawTreeItemButton( this, dc, rect,
+                                                                    flag|wxCONTROL_EXPANDED );

                     else
                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
                 }
                     else
                         wxRendererNative::Get().DrawTreeItemButton( this, dc, rect, flag);
                 }

-                 //force the expander column to left-center align
-                 cell->SetAlignment( wxALIGN_CENTER_VERTICAL );
+
+                // force the expander column to left-center align
+                cell->SetAlignment( wxALIGN_CENTER_VERTICAL );

             }
             if (node && !node->HasChildren())
             {
             }
             if (node && !node->HasChildren())
             {


@@ -1847,7 +1893,9 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
 
             // cannot be bigger than allocated space
             wxSize size = cell->GetSize();
 
             // cannot be bigger than allocated space
             wxSize size = cell->GetSize();

-            // Because of the tree structure indent, here we should minus the width of the cell for drawing
+
+            // Because of the tree structure indent, here we should minus the width
+            // of the cell for drawing

             size.x = wxMin( size.x + 2*PADDING_RIGHTLEFT, cell_rect.width - indent );
             // size.y = wxMin( size.y, cell_rect.height );
             size.y = cell_rect.height;
             size.x = wxMin( size.x + 2*PADDING_RIGHTLEFT, cell_rect.width - indent );
             // size.y = wxMin( size.y, cell_rect.height );
             size.y = cell_rect.height;


@@ -1861,7 +1909,7 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
                 item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
             else if (align & wxALIGN_RIGHT)
                 item_rect.x = cell_rect.x + cell_rect.width - size.x;
                 item_rect.x = cell_rect.x + (cell_rect.width / 2) - (size.x / 2);
             else if (align & wxALIGN_RIGHT)
                 item_rect.x = cell_rect.x + cell_rect.width - size.x;

-            //else: wxALIGN_LEFT is the default
+            // else: wxALIGN_LEFT is the default

 
             // vertical alignment:
             item_rect.y = cell_rect.y;
 
             // vertical alignment:
             item_rect.y = cell_rect.y;


@@ -1869,13 +1917,13 @@ void wxDataViewMainWindow::OnPaint( wxPaintEvent &WXUNUSED(event) )
                 item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
             else if (align & wxALIGN_BOTTOM)
                 item_rect.y = cell_rect.y + cell_rect.height - size.y;
                 item_rect.y = cell_rect.y + (cell_rect.height / 2) - (size.y / 2);
             else if (align & wxALIGN_BOTTOM)
                 item_rect.y = cell_rect.y + cell_rect.height - size.y;

-            //else: wxALIGN_TOP is the default
+            // else: wxALIGN_TOP is the default

 
             // add padding
             item_rect.x += PADDING_RIGHTLEFT;
             item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
 
 
             // add padding
             item_rect.x += PADDING_RIGHTLEFT;
             item_rect.width = size.x - 2 * PADDING_RIGHTLEFT;
 

-            //Here we add the tree indent
+            // Here we add the tree indent

             item_rect.x += indent;
 
             int state = 0;
             item_rect.x += indent;
 
             int state = 0;


@@ -1903,57 +1951,29 @@ void wxDataViewMainWindow::OnRenameTimer()
     // We have to call this here because changes may just have
     // been made and no screen update taken place.
     if ( m_dirty )
     // We have to call this here because changes may just have
     // been made and no screen update taken place.
     if ( m_dirty )

-        wxSafeYield();
-
-    int xpos = 0;
-    unsigned int cols = GetOwner()->GetColumnCount();
-    unsigned int i;
-    for (i = 0; i < cols; i++)

     {
     {

-        wxDataViewColumn *c = GetOwner()->GetColumnAt( i );
-        if (c->IsHidden())
-            continue;      // skip it!
-
-        if (c == m_currentCol)
-            break;
-        xpos += c->GetWidth();
+        // TODO: use wxTheApp->SafeYieldFor(NULL, wxEVT_CATEGORY_UI) instead
+        //       (needs to be tested!)
+        wxSafeYield();

     }
 
     }
 

-       // we have to take an expander column into account and compute its indentation
-       // to get the editor at the correct x position where the actual text is
-       int indent = 0;
-       if (!IsVirtualList() && GetOwner()->GetExpanderColumn() == m_currentCol)
-       {
-               wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
-               indent = GetOwner()->GetIndent() * node->GetIndentLevel();
-               indent = indent + m_lineHeight;
-
-               if(!node->HasChildren())
-                       delete node;
-       }
-
-    wxRect labelRect( xpos + indent,
-                      GetLineStart( m_currentRow ),
-                      m_currentCol->GetWidth() - indent,
-                      GetLineHeight( m_currentRow ) );
+    wxDataViewItem item = GetItemByRow( m_currentRow );

 
 

-    GetOwner()->CalcScrolledPosition( labelRect.x, labelRect.y,
-                                     &labelRect.x, &labelRect.y);
+    wxRect labelRect = GetItemRect(item, m_currentCol);

 
 

-    wxDataViewItem item = GetItemByRow( m_currentRow );

     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
 }
 
     m_currentCol->GetRenderer()->StartEditing( item, labelRect );
 }
 

-//------------------------------------------------------------------
+//-----------------------------------------------------------------------------

 // Helper class for do operation on the tree node
 // Helper class for do operation on the tree node

-//------------------------------------------------------------------
+//-----------------------------------------------------------------------------

 class DoJob
 {
 public:
     DoJob() { }
     virtual ~DoJob() { }
 
 class DoJob
 {
 public:
     DoJob() { }
     virtual ~DoJob() { }
 

-    //The return value control how the tree-walker tranverse the tree
+    // The return value control how the tree-walker tranverse the tree

     // 0: Job done, stop tranverse and return
     // 1: Ignore the current node's subtree and continue
     // 2: Job not done, continue
     // 0: Job done, stop tranverse and return
     // 1: Ignore the current node's subtree and continue
     // 2: Job not done, continue


@@ -2006,7 +2026,7 @@ bool Walker( wxDataViewTreeNode * node, DoJob & func )
                     continue;
                 case DoJob::CONT:
                 default:
                     continue;
                 case DoJob::CONT:
                 default:

-                   ;
+                ;

             }
     }
     return false;
             }
     }
     return false;


@@ -2014,9 +2034,11 @@ bool Walker( wxDataViewTreeNode * node, DoJob & func )
 
 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
 {
 
 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
 {

-    if (!m_root)
+    if (IsVirtualList())

     {
     {

-        m_count++;
+        wxDataViewVirtualListModel *list_model =
+            (wxDataViewVirtualListModel*) GetOwner()->GetModel();
+        m_count = list_model->GetCount();

         UpdateDisplay();
         return true;
     }
         UpdateDisplay();
         return true;
     }


@@ -2054,12 +2076,16 @@ static void DestroyTreeHelper( wxDataViewTreeNode * node);
 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
                                        const wxDataViewItem& item)
 {
 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
                                        const wxDataViewItem& item)
 {

-    if (!m_root)
+    if (IsVirtualList())

     {
     {

-        m_count--;
+        wxDataViewVirtualListModel *list_model =
+            (wxDataViewVirtualListModel*) GetOwner()->GetModel();
+        m_count = list_model->GetCount();
+        

         if( m_currentRow > GetRowCount() )
             m_currentRow = m_count - 1;
 
         if( m_currentRow > GetRowCount() )
             m_currentRow = m_count - 1;
 

+        // TODO: why empty the entire selection?

         m_selection.Empty();
 
         UpdateDisplay();
         m_selection.Empty();
 
         UpdateDisplay();


@@ -2070,11 +2096,12 @@ bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
     wxDataViewTreeNode * node = FindNode(parent);
 
     wxCHECK_MSG( node != NULL, false, "item not found" );
     wxDataViewTreeNode * node = FindNode(parent);
 
     wxCHECK_MSG( node != NULL, false, "item not found" );

-    wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND, false, "item not found" );
+    wxCHECK_MSG( node->GetChildren().Index( item.GetID() ) != wxNOT_FOUND,
+                 false, "item not found" );

 
     int sub = -1;
     node->GetChildren().Remove( item.GetID() );
 
     int sub = -1;
     node->GetChildren().Remove( item.GetID() );

-    //Manuplate selection
+    // Manipolate selection

     if( m_selection.GetCount() > 1 )
     {
         m_selection.Empty();
     if( m_selection.GetCount() > 1 )
     {
         m_selection.Empty();


@@ -2109,11 +2136,11 @@ bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
         sub -= n->GetSubTreeCount();
         ::DestroyTreeHelper(n);
     }
         sub -= n->GetSubTreeCount();
         ::DestroyTreeHelper(n);
     }

-    //Make the row number invalid and get a new valid one when user call GetRowCount
+    // Make the row number invalid and get a new valid one when user call GetRowCount

     m_count = -1;
     node->ChangeSubTreeCount(sub);
 
     m_count = -1;
     node->ChangeSubTreeCount(sub);
 

-    //Change the current row to the last row if the current exceed the max row number
+    // Change the current row to the last row if the current exceed the max row number

     if( m_currentRow > GetRowCount() )
         m_currentRow = m_count - 1;
 
     if( m_currentRow > GetRowCount() )
         m_currentRow = m_count - 1;
 


@@ -2127,7 +2154,7 @@ bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
     SortPrepare();
     g_model->Resort();
 
     SortPrepare();
     g_model->Resort();
 

-    //Send event
+    // Send event

     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
     le.SetEventObject(parent);
     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
     le.SetEventObject(parent);


@@ -2152,7 +2179,7 @@ bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned i
     SortPrepare();
     g_model->Resort();
 
     SortPrepare();
     g_model->Resort();
 

-    //Send event
+    // Send event

     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
     le.SetEventObject(parent);
     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
     le.SetEventObject(parent);


@@ -2290,9 +2317,9 @@ unsigned int wxDataViewMainWindow::GetLastVisibleRow()
 {
     wxSize client_size = GetClientSize();
     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,
 {
     wxSize client_size = GetClientSize();
     m_owner->CalcUnscrolledPosition( client_size.x, client_size.y,

-                                     &client_size.x, &client_size.y );
+                                    &client_size.x, &client_size.y );

 
 

-    //we should deal with the pixel here
+    // we should deal with the pixel here

     unsigned int row = GetLineAt(client_size.y) - 1;
 
     return wxMin( GetRowCount()-1, row );
     unsigned int row = GetLineAt(client_size.y) - 1;
 
     return wxMin( GetRowCount()-1, row );


@@ -2471,7 +2498,7 @@ void wxDataViewMainWindow::RefreshRowsAfter( unsigned int firstRow )
 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
 {
     wxCHECK_RET( newCurrent < GetRowCount(),
 void wxDataViewMainWindow::OnArrowChar(unsigned int newCurrent, const wxKeyEvent& event)
 {
     wxCHECK_RET( newCurrent < GetRowCount(),

-                 _T("invalid item index in OnArrowChar()") );
+                wxT("invalid item index in OnArrowChar()") );

 
     // if there is no selection, we cannot move it anywhere
     if (!HasCurrentRow())
 
     // if there is no selection, we cannot move it anywhere
     if (!HasCurrentRow())


@@ -2565,18 +2592,20 @@ int wxDataViewMainWindow::GetLineStart( unsigned int row ) const
                 if (column->IsHidden())
                     continue;      // skip it!
 
                 if (column->IsHidden())
                     continue;      // skip it!
 

-                if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+                if ((col != 0) &&
+                    model->IsContainer(item) &&
+                    !model->HasContainerColumns(item))

                     continue;      // skip it!
 
                     continue;      // skip it!
 

-                const wxDataViewRenderer *renderer = column->GetRenderer();

                 wxVariant value;
                 model->GetValue( value, item, column->GetModelColumn() );
                 wxVariant value;
                 model->GetValue( value, item, column->GetModelColumn() );

-                wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
-                renderer2->SetValue( value );
+
+                wxDataViewRenderer *renderer =
+                    const_cast<wxDataViewRenderer*>(column->GetRenderer());
+                renderer->SetValue( value );

                 height = wxMax( height, renderer->GetSize().y );
             }
 
                 height = wxMax( height, renderer->GetSize().y );
             }
 

-

             start += height;
         }
 
             start += height;
         }
 


@@ -2601,14 +2630,14 @@ int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
     unsigned int yy = 0;
     for (;;)
     {
     unsigned int yy = 0;
     for (;;)
     {

-       const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
-       if (!node)
-       {
-           // not really correct...
-           return row + ((y-yy) / m_lineHeight);
-       }
+        const wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+        if (!node)
+        {
+            // not really correct...
+            return row + ((y-yy) / m_lineHeight);
+        }

 
 

-       wxDataViewItem item = node->GetItem();
+        wxDataViewItem item = node->GetItem();

 
         if (node && !node->HasChildren())
         {
 
         if (node && !node->HasChildren())
         {


@@ -2617,31 +2646,34 @@ int wxDataViewMainWindow::GetLineAt( unsigned int y ) const
             wxDELETE(node);
         }
 
             wxDELETE(node);
         }
 

-       unsigned int cols = GetOwner()->GetColumnCount();
-       unsigned int col;
-       int height = m_lineHeight;
-       for (col = 0; col < cols; col++)
-       {
+        unsigned int cols = GetOwner()->GetColumnCount();
+        unsigned int col;
+        int height = m_lineHeight;
+        for (col = 0; col < cols; col++)
+        {

             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
             if (column->IsHidden())
                 continue;      // skip it!
 
             const wxDataViewColumn *column = GetOwner()->GetColumn(col);
             if (column->IsHidden())
                 continue;      // skip it!
 

-            if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+            if ((col != 0) &&
+                model->IsContainer(item) &&
+                !model->HasContainerColumns(item))

                 continue;      // skip it!
 
                 continue;      // skip it!
 

-            const wxDataViewRenderer *renderer = column->GetRenderer();

             wxVariant value;
             model->GetValue( value, item, column->GetModelColumn() );
             wxVariant value;
             model->GetValue( value, item, column->GetModelColumn() );

-            wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
-            renderer2->SetValue( value );
+
+            wxDataViewRenderer *renderer =
+                const_cast<wxDataViewRenderer*>(column->GetRenderer());
+            renderer->SetValue( value );

             height = wxMax( height, renderer->GetSize().y );
             height = wxMax( height, renderer->GetSize().y );

-       }
+        }

 
 

-       yy += height;
-       if (y < yy)
-           return row;
+        yy += height;
+        if (y < yy)
+            return row;

 
 

-       row++;
+        row++;

     }
 }
 
     }
 }
 


@@ -2663,7 +2695,7 @@ int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
         {
                 // Yes, if the node does not have any child, it must be a leaf which
                 // mean that it is a temporarily created by GetTreeNodeByRow
         {
                 // Yes, if the node does not have any child, it must be a leaf which
                 // mean that it is a temporarily created by GetTreeNodeByRow

-             wxDELETE(node);
+            wxDELETE(node);

         }
 
         int height = m_lineHeight;
         }
 
         int height = m_lineHeight;


@@ -2676,14 +2708,17 @@ int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
             if (column->IsHidden())
                 continue;      // skip it!
 
             if (column->IsHidden())
                 continue;      // skip it!
 

-            if ((col != 0) && model->IsContainer(item) && !model->HasContainerColumns(item))
+            if ((col != 0) &&
+                model->IsContainer(item) &&
+                !model->HasContainerColumns(item))

                 continue;      // skip it!
 
                 continue;      // skip it!
 

-            const wxDataViewRenderer *renderer = column->GetRenderer();

             wxVariant value;
             model->GetValue( value, item, column->GetModelColumn() );
             wxVariant value;
             model->GetValue( value, item, column->GetModelColumn() );

-            wxDataViewRenderer *renderer2 = const_cast<wxDataViewRenderer*>(renderer);
-            renderer2->SetValue( value );
+
+            wxDataViewRenderer *renderer =
+                const_cast<wxDataViewRenderer*>(column->GetRenderer());
+            renderer->SetValue( value );

             height = wxMax( height, renderer->GetSize().y );
         }
 
             height = wxMax( height, renderer->GetSize().y );
         }
 


@@ -2698,14 +2733,15 @@ int wxDataViewMainWindow::GetLineHeight( unsigned int row ) const
 class RowToItemJob: public DoJob
 {
 public:
 class RowToItemJob: public DoJob
 {
 public:

-    RowToItemJob( unsigned int row , int current ) { this->row = row; this->current = current;}
-    virtual ~RowToItemJob() { }
+    RowToItemJob( unsigned int row , int current )
+        { this->row = row; this->current = current; }
+    virtual ~RowToItemJob() {}

 
     virtual int operator() ( wxDataViewTreeNode * node )
     {
         current ++;
         if( current == static_cast<int>(row))
 
     virtual int operator() ( wxDataViewTreeNode * node )
     {
         current ++;
         if( current == static_cast<int>(row))

-         {
+        {

             ret = node->GetItem();
             return DoJob::OK;
         }
             ret = node->GetItem();
             return DoJob::OK;
         }


@@ -2717,8 +2753,10 @@ public:
         }
         else
         {
         }
         else
         {

-            //If the current has no child node, we can find the desired item of the row number directly.
-            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+            // If the current has no child node, we can find the desired item of the row
+            // number directly.
+            // This if can speed up finding in some case, and will has a very good effect
+            // when it comes to list view

             if( node->GetNodes().GetCount() == 0)
             {
                 int index = static_cast<int>(row) - current - 1;
             if( node->GetNodes().GetCount() == 0)
             {
                 int index = static_cast<int>(row) - current - 1;


@@ -2733,13 +2771,16 @@ public:
     {
         current ++;
         if( current == static_cast<int>(row))
     {
         current ++;
         if( current == static_cast<int>(row))

-         {
+        {

             ret = wxDataViewItem( n );
             return DoJob::OK;
         }
         return DoJob::CONT;
     }
             ret = wxDataViewItem( n );
             return DoJob::OK;
         }
         return DoJob::CONT;
     }

-    wxDataViewItem GetResult(){ return ret; }
+
+    wxDataViewItem GetResult() const
+        { return ret; }
+

 private:
     unsigned int row;
     int current;
 private:
     unsigned int row;
     int current;


@@ -2748,9 +2789,9 @@ private:
 
 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
 {
 
 wxDataViewItem wxDataViewMainWindow::GetItemByRow(unsigned int row) const
 {

-    if (!m_root)
+    if (IsVirtualList())

     {
     {

-        return wxDataViewItem( wxUIntToPtr(row) );
+        return wxDataViewItem( wxUIntToPtr(row+1) );

     }
     else
     {
     }
     else
     {


@@ -2776,7 +2817,7 @@ public:
     {
         current ++;
         if( current == static_cast<int>(row))
     {
         current ++;
         if( current == static_cast<int>(row))

-         {
+        {

             ret = node;
             return DoJob::OK;
         }
             ret = node;
             return DoJob::OK;
         }


@@ -2789,8 +2830,11 @@ public:
         else
         {
             parent = node;
         else
         {
             parent = node;

-            //If the current has no child node, we can find the desired item of the row number directly.
-            //This if can speed up finding in some case, and will has a very good effect when it comes to list view
+
+            // If the current node has no children, we can find the desired item of the
+            // row number directly.
+            // This if can speed up finding in some case, and will have a very good
+            // effect for list views.

             if( node->GetNodes().GetCount() == 0)
             {
                 int index = static_cast<int>(row) - current - 1;
             if( node->GetNodes().GetCount() == 0)
             {
                 int index = static_cast<int>(row) - current - 1;


@@ -2802,15 +2846,13 @@ public:
             }
             return DoJob::CONT;
         }
             }
             return DoJob::CONT;
         }

-
-

     }
 
     virtual int operator() ( void * n )
     {
         current ++;
         if( current == static_cast<int>(row))
     }
 
     virtual int operator() ( void * n )
     {
         current ++;
         if( current == static_cast<int>(row))

-         {
+        {

             ret = new wxDataViewTreeNode( parent );
             ret->SetItem( wxDataViewItem( n ));
             ret->SetHasChildren(false);
             ret = new wxDataViewTreeNode( parent );
             ret->SetItem( wxDataViewItem( n ));
             ret->SetHasChildren(false);


@@ -2819,7 +2861,10 @@ public:
 
         return DoJob::CONT;
     }
 
         return DoJob::CONT;
     }

-    wxDataViewTreeNode * GetResult(){ return ret; }
+
+    wxDataViewTreeNode * GetResult() const
+        { return ret; }
+

 private:
     unsigned int row;
     int current;
 private:
     unsigned int row;
     int current;


@@ -2827,7 +2872,6 @@ private:
     wxDataViewTreeNode * parent;
 };
 
     wxDataViewTreeNode * parent;
 };
 

-

 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
 {
     wxASSERT( !IsVirtualList() );
 wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) const
 {
     wxASSERT( !IsVirtualList() );


@@ -2837,7 +2881,8 @@ wxDataViewTreeNode * wxDataViewMainWindow::GetTreeNodeByRow(unsigned int row) co
     return job.GetResult();
 }
 
     return job.GetResult();
 }
 

-wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const wxDataViewItem & item )
+wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type,
+                                                         const wxDataViewItem & item )

 {
     wxWindow *parent = GetParent();
     wxDataViewEvent le(type, parent->GetId());
 {
     wxWindow *parent = GetParent();
     wxDataViewEvent le(type, parent->GetId());


@@ -2850,171 +2895,172 @@ wxDataViewEvent wxDataViewMainWindow::SendExpanderEvent( wxEventType type, const
     return le;
 }
 
     return le;
 }
 

-

 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
 {
     if (IsVirtualList())
 bool wxDataViewMainWindow::IsExpanded( unsigned int row ) const
 {
     if (IsVirtualList())

-       return false;
+        return false;

 
     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
     if (!node)
 
     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
     if (!node)

-       return false;
+        return false;

 
     if (!node->HasChildren())
     {
 
     if (!node->HasChildren())
     {

-       delete node;
-       return false;
+        delete node;
+        return false;

     }
 
     return node->IsOpen();
 }
 
     }
 
     return node->IsOpen();
 }
 

+bool wxDataViewMainWindow::HasChildren( unsigned int row ) const
+{
+    if (IsVirtualList())
+        return false;
+
+    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
+    if (!node)
+        return false;
+
+    if (!node->HasChildren())
+    {
+        delete node;
+        return false;
+    }
+
+    return true;
+}

 
 

-void wxDataViewMainWindow::OnExpanding( unsigned int row )
+void wxDataViewMainWindow::Expand( unsigned int row )

 {
     if (IsVirtualList())
 {
     if (IsVirtualList())

-       return;
+        return;

 
     wxDataViewTreeNode * node = GetTreeNodeByRow(row);
 
     wxDataViewTreeNode * node = GetTreeNodeByRow(row);

-    if( node != NULL )
+    if (!node)
+        return;
+
+    if (!node->HasChildren())

     {
     {

-        if( node->HasChildren())
-        {
-            if( !node->IsOpen())
+        delete node;
+        return;
+    }
+
+            if (!node->IsOpen())

             {
             {

-               wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING,node->GetItem());
-               //Check if the user prevent expanding
-               if( e.GetSkipped() )
+                wxDataViewEvent e =
+                    SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDING, node->GetItem());
+
+                // Check if the user prevent expanding
+                if( e.GetSkipped() )

                     return;
 
                     return;
 

-               node->ToggleOpen();
-               //Here I build the children of current node
-               if( node->GetChildrenNumber() == 0 )
-               {
-                   SortPrepare();
-                   ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
-               }
-
-               // By expanding the node all row indices that are currently in the selection list
-                          // and are greater than our node have become invalid. So we have to correct that now.
-                          const unsigned rowAdjustment = node->GetSubTreeCount();
-                          for(unsigned i=0; i<m_selection.size(); ++i)
-                          {
-                                  const unsigned testRow = m_selection[i];
-                                  // all rows above us are not affected, so skip them
-                                  if(testRow <= row)
-                                          continue;
-
-                                  m_selection[i] += rowAdjustment;
-                          }
-
-                          if(m_currentRow > row)
-                                  ChangeCurrentRow(m_currentRow + rowAdjustment);
-
-               m_count = -1;
-               UpdateDisplay();
-               //Send the expanded event
-               SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());
-            }
-            else
-            {
-                SelectRow( row, false );
-                SelectRow( row + 1, true );
-                ChangeCurrentRow( row + 1 );
-                SendSelectionChangedEvent( GetItemByRow(row+1));
+                node->ToggleOpen();
+
+                // build the children of current node
+                if( node->GetChildrenNumber() == 0 )
+                {
+                    SortPrepare();
+                    ::BuildTreeHelper(GetOwner()->GetModel(), node->GetItem(), node);
+                }
+
+                // By expanding the node all row indices that are currently in the selection list
+                // and are greater than our node have become invalid. So we have to correct that now.
+                const unsigned rowAdjustment = node->GetSubTreeCount();
+                for(unsigned i=0; i<m_selection.size(); ++i)
+                {
+                    const unsigned testRow = m_selection[i];
+                    // all rows above us are not affected, so skip them
+                    if(testRow <= row)
+                        continue;
+
+                    m_selection[i] += rowAdjustment;
+                }
+
+                if(m_currentRow > row)
+                    ChangeCurrentRow(m_currentRow + rowAdjustment);
+
+                m_count = -1;
+                UpdateDisplay();
+                // Send the expanded event
+                SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_EXPANDED,node->GetItem());

             }
             }

-        }
-        else
-            delete node;
-    }

 }
 
 }
 

-void wxDataViewMainWindow::OnCollapsing(unsigned int row)
+void wxDataViewMainWindow::Collapse(unsigned int row)

 {
     if (IsVirtualList())
 {
     if (IsVirtualList())

-       return;
+        return;

 
 

-    wxDataViewTreeNode * node = GetTreeNodeByRow(row);
-    if( node != NULL )
+    wxDataViewTreeNode *node = GetTreeNodeByRow(row);
+    if (!node)
+        return;
+
+    if (!node->HasChildren())

     {
     {

-        wxDataViewTreeNode * nd = node;
+        delete node;
+        return;
+    }

 
 

-        if( node->HasChildren() && node->IsOpen() )
+        if (node->IsOpen())

         {
         {

-            wxDataViewEvent e = SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());
+            wxDataViewEvent e =
+                SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSING,node->GetItem());

             if( e.GetSkipped() )
                 return;
 
             if( e.GetSkipped() )
                 return;
 

-                       // Find out if there are selected items below the current node.
-                       bool selectCollapsingRow = false;
-                       const unsigned rowAdjustment = node->GetSubTreeCount();
-                       unsigned maxRowToBeTested = row + rowAdjustment;
-                       for(unsigned i=0; i<m_selection.size(); ++i)
-                       {
-                               const unsigned testRow = m_selection[i];
-                               if(testRow > row && testRow <= maxRowToBeTested)
-                               {
-                                       selectCollapsingRow = true;
-                                       // get out as soon as we have found a node that is selected
-                                       break;
-                               }
-                       }
-
-                       node->ToggleOpen();
-
-                       // If the node to be closed has selected items the user won't see those any longer.
-                       // We select the collapsing node in this case.
-                       if(selectCollapsingRow)
-                       {
-                               SelectAllRows(false);
-                               ChangeCurrentRow(row);
-                               SelectRow(row, true);
-                               SendSelectionChangedEvent(GetItemByRow(row));
-                       }
-                       else
-                       {
-                               // if there were no selected items below our node we still need to "fix" the
-                               // selection list to adjust for the changing of the row indices.
-                               // We actually do the opposite of what we are doing in OnExpanding().
-                               for(unsigned i=0; i<m_selection.size(); ++i)
-                               {
-                                       const unsigned testRow = m_selection[i];
-                                       // all rows above us are not affected, so skip them
-                                       if(testRow <= row)
-                                               continue;
-
-                                       m_selection[i] -= rowAdjustment;
-                               }
-
-                               // if the "current row" is being collapsed away we change it to the current row ;-)
-                               if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
-                                       ChangeCurrentRow(row);
-                               else if(m_currentRow > row)
-                                       ChangeCurrentRow(m_currentRow - rowAdjustment);
-                       }
+            // Find out if there are selected items below the current node.
+            bool selectCollapsingRow = false;
+            const unsigned rowAdjustment = node->GetSubTreeCount();
+            unsigned maxRowToBeTested = row + rowAdjustment;
+            for(unsigned i=0; i<m_selection.size(); ++i)
+            {
+                const unsigned testRow = m_selection[i];
+                if(testRow > row && testRow <= maxRowToBeTested)
+                {
+                    selectCollapsingRow = true;
+                    // get out as soon as we have found a node that is selected
+                    break;
+                }
+            }

 
 

-            m_count = -1;
-            UpdateDisplay();
-            SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,nd->GetItem());
-        }
-        else
-        {
-            node = node->GetParent();
-            if( node != NULL )
+            node->ToggleOpen();
+
+            // If the node to be closed has selected items the user won't see those any longer.
+            // We select the collapsing node in this case.
+            if(selectCollapsingRow)

             {
             {

-                int  parent = GetRowByItem( node->GetItem() );
-                if( parent >= 0 )
+                SelectAllRows(false);
+                ChangeCurrentRow(row);
+                SelectRow(row, true);
+                SendSelectionChangedEvent(GetItemByRow(row));
+            }
+            else
+            {
+                // if there were no selected items below our node we still need to "fix" the
+                // selection list to adjust for the changing of the row indices.
+                // We actually do the opposite of what we are doing in Expand().
+                for(unsigned i=0; i<m_selection.size(); ++i)

                 {
                 {

-                    SelectRow( row, false);
-                    SelectRow(parent , true );
-                    ChangeCurrentRow( parent );
-                    SendSelectionChangedEvent( node->GetItem() );
+                    const unsigned testRow = m_selection[i];
+                    // all rows above us are not affected, so skip them
+                    if(testRow <= row)
+                        continue;
+
+                    m_selection[i] -= rowAdjustment;

                 }
                 }

+
+                // if the "current row" is being collapsed away we change it to the current row ;-)
+                if(m_currentRow > row && m_currentRow <= maxRowToBeTested)
+                    ChangeCurrentRow(row);
+                else if(m_currentRow > row)
+                    ChangeCurrentRow(m_currentRow - rowAdjustment);

             }
             }

+
+            m_count = -1;
+            UpdateDisplay();
+            SendExpanderEvent(wxEVT_COMMAND_DATAVIEW_ITEM_COLLAPSED,node->GetItem());

         }
         }

-        if( !nd->HasChildren())
-            delete nd;
-    }

 }
 
 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )
 }
 
 wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item )


@@ -3026,7 +3072,7 @@ wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item
     if (!item.IsOk())
         return m_root;
 
     if (!item.IsOk())
         return m_root;
 

-    //Compose the a parent-chain of the finding item
+    // Compose the a parent-chain of the finding item

     ItemList list;
     list.DeleteContents( true );
     wxDataViewItem it( item );
     ItemList list;
     list.DeleteContents( true );
     wxDataViewItem it( item );


@@ -3037,8 +3083,8 @@ wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item
         it = model->GetParent( it );
     }
 
         it = model->GetParent( it );
     }
 

-    //Find the item along the parent-chain.
-    //This algorithm is designed to speed up the node-finding method
+    // Find the item along the parent-chain.
+    // This algorithm is designed to speed up the node-finding method

     wxDataViewTreeNode * node = m_root;
     for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
     {
     wxDataViewTreeNode * node = m_root;
     for( ItemList::const_iterator iter = list.begin(); iter !=list.end(); iter++ )
     {


@@ -3059,7 +3105,7 @@ wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item
                 if (nodes[i]->GetItem() == (**iter))
                 {
                     if (nodes[i]->GetItem() == item)
                 if (nodes[i]->GetItem() == (**iter))
                 {
                     if (nodes[i]->GetItem() == item)

-                       return nodes[i];
+                    return nodes[i];

 
                     node = nodes[i];
                     found = true;
 
                     node = nodes[i];
                     found = true;


@@ -3075,7 +3121,8 @@ wxDataViewTreeNode * wxDataViewMainWindow::FindNode( const wxDataViewItem & item
     return NULL;
 }
 
     return NULL;
 }
 

-void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column )
+void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item,
+                                    wxDataViewColumn* &column )

 {
     wxDataViewColumn *col = NULL;
     unsigned int cols = GetOwner()->GetColumnCount();
 {
     wxDataViewColumn *col = NULL;
     unsigned int cols = GetOwner()->GetColumnCount();


@@ -3099,35 +3146,77 @@ void wxDataViewMainWindow::HitTest( const wxPoint & point, wxDataViewItem & item
     item = GetItemByRow( GetLineAt( y ) );
 }
 
     item = GetItemByRow( GetLineAt( y ) );
 }
 

-wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column )
+wxRect wxDataViewMainWindow::GetItemRect( const wxDataViewItem & item,
+                                          const wxDataViewColumn* column )

 {
 {

+    int xpos = 0;
+    int width = 0;
+
+    unsigned int cols = GetOwner()->GetColumnCount();
+    // If column is null the loop will compute the combined width of all columns.
+    // Otherwise, it will compute the x position of the column we are looking for.
+    for (unsigned int i = 0; i < cols; i++)
+    {
+        wxDataViewColumn* col = GetOwner()->GetColumnAt( i );
+
+        if (col == column)
+            break;
+
+        if (col->IsHidden())
+            continue;      // skip it!
+
+        xpos += col->GetWidth();
+        width += col->GetWidth();
+    }
+
+    if(column != 0)
+    {
+        // If we have a column, we need can get its width directly.
+        if(column->IsHidden())
+            width = 0;
+        else
+            width = column->GetWidth();
+
+    }
+    else
+    {
+        // If we have no column, we reset the x position back to zero.
+        xpos = 0;
+    }
+
+    // we have to take an expander column into account and compute its indentation
+    // to get the correct x position where the actual text is
+    int indent = 0;

     int row = GetRowByItem(item);
     int row = GetRowByItem(item);

-    int y = GetLineStart( row );
-    int h = GetLineHeight( m_lineHeight );
-    int x = 0;
-    wxDataViewColumn *col = NULL;
-    for( int i = 0, cols = GetOwner()->GetColumnCount(); i < cols; i ++ )
+    if (!IsVirtualList() && (column == 0 || GetOwner()->GetExpanderColumn() == column) )

     {
     {

-       col = GetOwner()->GetColumnAt( i );
-       x += col->GetWidth();
-       if( GetOwner()->GetColumnAt(i+1) == column )
-           break;
+        wxDataViewTreeNode* node = GetTreeNodeByRow(row);
+        indent = GetOwner()->GetIndent() * node->GetIndentLevel();
+        indent = indent + m_lineHeight;        // use m_lineHeight as the width of the expander
+
+        if(!node->HasChildren())
+            delete node;

     }
     }

-    int w = col->GetWidth();
-    m_owner->CalcScrolledPosition( x, y, &x, &y );
-    return wxRect(x, y, w, h);
+
+    wxRect itemRect( xpos + indent,
+                     GetLineStart( row ),
+                     width - indent,
+                     GetLineHeight( row ) );
+
+    GetOwner()->CalcScrolledPosition(  itemRect.x,  itemRect.y,
+                                      &itemRect.x, &itemRect.y );
+
+    return itemRect;

 }
 
 int wxDataViewMainWindow::RecalculateCount()
 {
 }
 
 int wxDataViewMainWindow::RecalculateCount()
 {

-    if (!m_root)
+    if (IsVirtualList())

     {
     {

-        wxDataViewIndexListModel *list_model = (wxDataViewIndexListModel*) GetOwner()->GetModel();
-#ifndef __WXMAC__
-        return list_model->GetLastIndex() + 1;
-#else
-        return list_model->GetLastIndex() - 1;
-#endif
+        wxDataViewVirtualListModel *list_model =
+            (wxDataViewVirtualListModel*) GetOwner()->GetModel();
+            
+        return list_model->GetCount();

     }
     else
     {
     }
     else
     {


@@ -3140,30 +3229,30 @@ class ItemToRowJob : public DoJob
 public:
     ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
         : m_iter(iter),
 public:
     ItemToRowJob(const wxDataViewItem& item_, ItemList::const_iterator iter)
         : m_iter(iter),

-          item(item_)
+        item(item_)

     {
         ret = -1;
     }
 
     {
         ret = -1;
     }
 

-    //Maybe binary search will help to speed up this process
+    // Maybe binary search will help to speed up this process

     virtual int operator() ( wxDataViewTreeNode * node)
     {
     virtual int operator() ( wxDataViewTreeNode * node)
     {

-         ret ++;
-         if( node->GetItem() == item )
-         {
-             return DoJob::OK;
-         }
+        ret ++;
+        if( node->GetItem() == item )
+        {
+            return DoJob::OK;
+        }

 
 

-         if( node->GetItem() == **m_iter )
-         {
-             m_iter++;
-             return DoJob::CONT;
-         }
-         else
-         {
-             ret += node->GetSubTreeCount();
-             return DoJob::IGR;
-         }
+        if( node->GetItem() == **m_iter )
+        {
+            m_iter++;
+            return DoJob::CONT;
+        }
+        else
+        {
+            ret += node->GetSubTreeCount();
+            return DoJob::IGR;
+        }

 
     }
 
 
     }
 


@@ -3174,8 +3263,10 @@ public:
             return DoJob::OK;
         return DoJob::CONT;
     }
             return DoJob::OK;
         return DoJob::CONT;
     }

-    //the row number is begin from zero
-    int GetResult() { return ret -1; }
+
+    // the row number is begin from zero
+    int GetResult() const
+        { return ret -1; }

 
 private:
     ItemList::const_iterator  m_iter;
 
 private:
     ItemList::const_iterator  m_iter;


@@ -3190,16 +3281,16 @@ int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
     if( model == NULL )
         return -1;
 
     if( model == NULL )
         return -1;
 

-    if (!m_root)
+    if (IsVirtualList())

     {
     {

-        return wxPtrToUInt( item.GetID() );
+        return wxPtrToUInt( item.GetID() ) -1;

     }
     else
     {
         if( !item.IsOk() )
             return -1;
 
     }
     else
     {
         if( !item.IsOk() )
             return -1;
 

-        //Compose the a parent-chain of the finding item
+        // Compose the a parent-chain of the finding item

         ItemList list;
         wxDataViewItem * pItem;
         list.DeleteContents( true );
         ItemList list;
         wxDataViewItem * pItem;
         list.DeleteContents( true );


@@ -3219,7 +3310,8 @@ int wxDataViewMainWindow::GetRowByItem(const wxDataViewItem & item) const
     }
 }
 
     }
 }
 

-static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item, wxDataViewTreeNode * node)
+static void BuildTreeHelper( wxDataViewModel * model,  wxDataViewItem & item,
+                             wxDataViewTreeNode * node)

 {
     if( !model->IsContainer( item ) )
         return;
 {
     if( !model->IsContainer( item ) )
         return;


@@ -3263,7 +3355,7 @@ void wxDataViewMainWindow::BuildTree(wxDataViewModel * model)
     m_root = new wxDataViewTreeNode( NULL );
     m_root->SetHasChildren(true);
 
     m_root = new wxDataViewTreeNode( NULL );
     m_root->SetHasChildren(true);
 

-    //First we define a invalid item to fetch the top-level elements
+    // First we define a invalid item to fetch the top-level elements

     wxDataViewItem item;
     SortPrepare();
     BuildTreeHelper( model, item, m_root);
     wxDataViewItem item;
     SortPrepare();
     BuildTreeHelper( model, item, m_root);


@@ -3275,12 +3367,9 @@ static void DestroyTreeHelper( wxDataViewTreeNode * node )
     if( node->GetNodeNumber() != 0 )
     {
         int len = node->GetNodeNumber();
     if( node->GetNodeNumber() != 0 )
     {
         int len = node->GetNodeNumber();

-        int i = 0;

         wxDataViewTreeNodes& nodes = node->GetNodes();
         wxDataViewTreeNodes& nodes = node->GetNodes();

-        for(; i < len; i ++ )
-        {
+        for (int i = 0; i < len; i++)

             DestroyTreeHelper(nodes[i]);
             DestroyTreeHelper(nodes[i]);

-        }

     }
     delete node;
 }
     }
     delete node;
 }


@@ -3289,9 +3378,9 @@ void wxDataViewMainWindow::DestroyTree()
 {
     if (!IsVirtualList())
     {
 {
     if (!IsVirtualList())
     {

-       ::DestroyTreeHelper(m_root);
-        m_count = 0;
-        m_root = NULL;
+        ::DestroyTreeHelper(m_root);
+            m_count = 0;
+            m_root = NULL;

     }
 }
 
     }
 }
 


@@ -3309,16 +3398,15 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
 
     // don't use m_linesPerPage directly as it might not be computed yet
     const int pageSize = GetCountPerPage();
 
     // don't use m_linesPerPage directly as it might not be computed yet
     const int pageSize = GetCountPerPage();

-    wxCHECK_RET( pageSize, _T("should have non zero page size") );
+    wxCHECK_RET( pageSize, wxT("should have non zero page size") );

 
     switch ( event.GetKeyCode() )
     {
         case WXK_RETURN:
 
     switch ( event.GetKeyCode() )
     {
         case WXK_RETURN:

-        {
-            if (m_currentRow >= 0)

             {
                 wxWindow *parent = GetParent();
             {
                 wxWindow *parent = GetParent();

-                wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, parent->GetId());
+                wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED,
+                                   parent->GetId());

                 le.SetItem( GetItemByRow(m_currentRow) );
                 le.SetEventObject(parent);
                 le.SetModel(GetOwner()->GetModel());
                 le.SetItem( GetItemByRow(m_currentRow) );
                 le.SetEventObject(parent);
                 le.SetModel(GetOwner()->GetModel());


@@ -3326,7 +3414,7 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
                 parent->GetEventHandler()->ProcessEvent(le);
             }
             break;
                 parent->GetEventHandler()->ProcessEvent(le);
             }
             break;

-        }
+

         case WXK_UP:
             if ( m_currentRow > 0 )
                 OnArrowChar( m_currentRow - 1, event );
         case WXK_UP:
             if ( m_currentRow > 0 )
                 OnArrowChar( m_currentRow - 1, event );


@@ -3336,18 +3424,64 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
             if ( m_currentRow < GetRowCount() - 1 )
                 OnArrowChar( m_currentRow + 1, event );
             break;
             if ( m_currentRow < GetRowCount() - 1 )
                 OnArrowChar( m_currentRow + 1, event );
             break;

-        //Add the process for tree expanding/collapsing
+        // Add the process for tree expanding/collapsing

         case WXK_LEFT:
         case WXK_LEFT:

-         OnCollapsing(m_currentRow);
-         break;
-     case WXK_RIGHT:
-         OnExpanding( m_currentRow);
-         break;
+        {
+            if (IsVirtualList())
+               break;
+
+            wxDataViewTreeNode* node = GetTreeNodeByRow(m_currentRow);
+            if (!node)
+                break;
+
+            if (node->HasChildren() && node->IsOpen())
+            {
+                Collapse(m_currentRow);
+            }
+            else    // if the node is already closed we move the selection to its parent
+            {
+                wxDataViewTreeNode *parent_node = node->GetParent();
+
+                if(!node->HasChildren())
+                    delete node;
+
+                if (parent_node)
+                {
+                    int parent = GetRowByItem( parent_node->GetItem() );
+                    if ( parent >= 0 )
+                    {
+                        unsigned int row = m_currentRow;
+                        SelectRow( row, false);
+                        SelectRow( parent, true );
+                        ChangeCurrentRow( parent );
+                        GetOwner()->EnsureVisible( parent, -1 );
+                        SendSelectionChangedEvent( parent_node->GetItem() );
+                    }
+                }
+            }
+            break;
+        }
+        case WXK_RIGHT:
+        {
+            if (!IsExpanded( m_currentRow ))
+                Expand( m_currentRow );
+            else
+            {
+                unsigned int row = m_currentRow;
+                SelectRow( row, false );
+                SelectRow( row + 1, true );
+                ChangeCurrentRow( row + 1 );
+                GetOwner()->EnsureVisible( row + 1, -1 );
+                SendSelectionChangedEvent( GetItemByRow(row+1) );
+            }
+            break;
+        }

         case WXK_END:
         case WXK_END:

+        {

             if (!IsEmpty())
                 OnArrowChar( GetRowCount() - 1, event );
             break;
             if (!IsEmpty())
                 OnArrowChar( GetRowCount() - 1, event );
             break;

-
+        }

         case WXK_HOME:
             if (!IsEmpty())
                 OnArrowChar( 0, event );
         case WXK_HOME:
             if (!IsEmpty())
                 OnArrowChar( 0, event );


@@ -3376,6 +3510,16 @@ void wxDataViewMainWindow::OnChar( wxKeyEvent &event )
             }
             break;
 
             }
             break;
 

+        case WXK_F2:
+            {
+                if(m_selection.size() == 1)
+                {
+                    // TODO: we need to revise that when we have a concept for a 'current column'
+                    GetOwner()->StartEditor(GetItemByRow(m_selection[0]), 0);
+                }
+            }
+            break;
+

         default:
             event.Skip();
     }
         default:
             event.Skip();
     }


@@ -3422,7 +3566,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
         return;
     }
 
         return;
     }
 

-    //Test whether the mouse is hovered on the tree item button
+    // Test whether the mouse is hovered on the tree item button

     bool hoverOverExpander = false;
     if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
     {
     bool hoverOverExpander = false;
     if ((!IsVirtualList()) && (GetOwner()->GetExpanderColumn() == col))
     {


@@ -3432,23 +3576,23 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             int indent = node->GetIndentLevel();
             indent = GetOwner()->GetIndent()*indent;
 
             int indent = node->GetIndentLevel();
             indent = GetOwner()->GetIndent()*indent;
 

-                       // we make the rectangle we are looking in a bit bigger than the actual
-                       // visual expander so the user can hit that little thing reliably
+            // we make the rectangle we are looking in a bit bigger than the actual
+            // visual expander so the user can hit that little thing reliably

             wxRect rect( xpos + indent,
             wxRect rect( xpos + indent,

-                         GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
-                         m_lineHeight, m_lineHeight);
+                        GetLineStart( current ) + (GetLineHeight(current) - m_lineHeight)/2,
+                        m_lineHeight, m_lineHeight);

             if( rect.Contains(x, y) )
             {
             if( rect.Contains(x, y) )
             {

-                //So the mouse is over the expander
+                // So the mouse is over the expander

                 hoverOverExpander = true;
                 if (m_underMouse && m_underMouse != node)
                 {
                 hoverOverExpander = true;
                 if (m_underMouse && m_underMouse != node)
                 {

-                    //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
+                    // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));

                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
                 }
                 if (m_underMouse != node)
                 {
                     RefreshRow(GetRowByItem(m_underMouse->GetItem()));
                 }
                 if (m_underMouse != node)
                 {

-                    //wxLogMessage("Do the row: %d", current);
+                    // wxLogMessage("Do the row: %d", current);

                     RefreshRow(current);
                 }
                 m_underMouse = node;
                     RefreshRow(current);
                 }
                 m_underMouse = node;


@@ -3461,7 +3605,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     {
         if (m_underMouse != NULL)
         {
     {
         if (m_underMouse != NULL)
         {

-            //wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));
+            // wxLogMessage("Undo the row: %d", GetRowByItem(m_underMouse->GetItem()));

             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
             m_underMouse = NULL;
         }
             RefreshRow(GetRowByItem(m_underMouse->GetItem()));
             m_underMouse = NULL;
         }


@@ -3487,7 +3631,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
 
         if (event.LeftIsDown())
         {
 
         if (event.LeftIsDown())
         {

-            m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y, &m_dragStart.x, &m_dragStart.y );
+            m_owner->CalcUnscrolledPosition( m_dragStart.x, m_dragStart.y,
+                                             &m_dragStart.x, &m_dragStart.y );

             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
             wxDataViewItem item = GetItemByRow( drag_item_row );
 
             unsigned int drag_item_row = GetLineAt( m_dragStart.y );
             wxDataViewItem item = GetItemByRow( drag_item_row );
 


@@ -3530,17 +3675,17 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     wxDataViewItem item = GetItemByRow(current);
     bool ignore_other_columns =
         ((GetOwner()->GetExpanderColumn() != col) &&
     wxDataViewItem item = GetItemByRow(current);
     bool ignore_other_columns =
         ((GetOwner()->GetExpanderColumn() != col) &&

-         (model->IsContainer(item)) &&
-         (!model->HasContainerColumns(item)));
+        (model->IsContainer(item)) &&
+        (!model->HasContainerColumns(item)));

 
     if (event.LeftDClick())
     {
 
     if (event.LeftDClick())
     {

-               if(hoverOverExpander)
-               {
-                       // a double click on the expander will be converted into a "simulated" normal click
-                       simulateClick = true;
-               }
-               else if ( current == m_lineLastClicked )
+        if(hoverOverExpander)
+        {
+            // a double click on the expander will be converted into a "simulated" normal click
+            simulateClick = true;
+        }
+        else if ( current == m_lineLastClicked )

         {
             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
             {
         {
             if ((!ignore_other_columns) && (cell->GetMode() == wxDATAVIEW_CELL_ACTIVATABLE))
             {


@@ -3548,9 +3693,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
                 model->GetValue( value, item, col->GetModelColumn() );
                 cell->SetValue( value );
                 wxRect cell_rect( xpos, GetLineStart( current ),
                 model->GetValue( value, item, col->GetModelColumn() );
                 cell->SetValue( value );
                 wxRect cell_rect( xpos, GetLineStart( current ),

-                                  col->GetWidth(), GetLineHeight( current ) );
+                                col->GetWidth(), GetLineHeight( current ) );

                 cell->Activate( cell_rect, model, item, col->GetModelColumn() );
                 cell->Activate( cell_rect, model, item, col->GetModelColumn() );

-

             }
             else
             {
             }
             else
             {


@@ -3582,7 +3726,8 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
         }
 
             SendSelectionChangedEvent( GetItemByRow(m_lineSelectSingleOnUp) );
         }
 

-        //If the user click the expander, we do not do editing even if the column with expander are editable
+        // If the user click the expander, we do not do editing even if the column
+        // with expander are editable

         if (m_lastOnSame && !ignore_other_columns)
         {
             if ((col == m_currentCol) && (current == m_currentRow) &&
         if (m_lastOnSame && !ignore_other_columns)
         {
             if ((col == m_currentCol) && (current == m_currentRow) &&


@@ -3618,7 +3763,9 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             SelectRow(m_currentRow,true);
             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
         }
             SelectRow(m_currentRow,true);
             SendSelectionChangedEvent(GetItemByRow( m_currentRow ) );
         }

-
+    }
+    else if (event.RightUp())
+    {

         wxVariant value;
         model->GetValue( value, item, col->GetModelColumn() );
         wxWindow *parent = GetParent();
         wxVariant value;
         model->GetValue( value, item, col->GetModelColumn() );
         wxWindow *parent = GetParent();


@@ -3633,17 +3780,19 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
     {
     }
 
     {
     }
 

-       if((event.LeftDown() || simulateClick) && hoverOverExpander)
-       {
-               wxDataViewTreeNode* node = GetTreeNodeByRow(current);
-               // hoverOverExpander being true tells us that our node must be valid and have children.
-               // So we don't need any extra checks.
-               if( node->IsOpen() )
-                       OnCollapsing(current);
-               else
-                       OnExpanding(current);
-       }
-       else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)
+    if((event.LeftDown() || simulateClick) && hoverOverExpander)
+    {
+        wxDataViewTreeNode* node = GetTreeNodeByRow(current);
+
+        // hoverOverExpander being true tells us that our node must be
+        // valid and have children.
+        // So we don't need any extra checks.
+        if( node->IsOpen() )
+            Collapse(current);
+        else
+            Expand(current);
+    }
+    else if ((event.LeftDown() || simulateClick) && !hoverOverExpander)

     {
         SetFocus();
 
     {
         SetFocus();
 


@@ -3682,7 +3831,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
                 ChangeCurrentRow(current);
 
                 unsigned int lineFrom = oldCurrentRow,
                 ChangeCurrentRow(current);
 
                 unsigned int lineFrom = oldCurrentRow,

-                       lineTo = current;
+                    lineTo = current;

 
                 if ( lineTo < lineFrom )
                 {
 
                 if ( lineTo < lineFrom )
                 {


@@ -3696,7 +3845,7 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             else // !ctrl, !shift
             {
                 // test in the enclosing if should make it impossible
             else // !ctrl, !shift
             {
                 // test in the enclosing if should make it impossible

-                wxFAIL_MSG( _T("how did we get here?") );
+                wxFAIL_MSG( wxT("how did we get here?") );

             }
         }
 
             }
         }
 


@@ -3719,8 +3868,9 @@ void wxDataViewMainWindow::OnMouse( wxMouseEvent &event )
             model->GetValue( value, item, col->GetModelColumn() );
             cell->SetValue( value );
             wxRect cell_rect( xpos, GetLineStart( current ),
             model->GetValue( value, item, col->GetModelColumn() );
             cell->SetValue( value );
             wxRect cell_rect( xpos, GetLineStart( current ),

-                          col->GetWidth(), GetLineHeight( current ) );
-            /* ignore ret */ cell->LeftClick( event.GetPosition(), cell_rect, model, item, col->GetModelColumn());
+                              col->GetWidth(), GetLineHeight( current ) );
+             /* ignore ret */ cell->LeftClick( event.GetPosition(), cell_rect,
+                              model, item, col->GetModelColumn());

         }
     }
 }
         }
     }
 }


@@ -3756,10 +3906,10 @@ wxDataViewItem wxDataViewMainWindow::GetSelection() const
 //-----------------------------------------------------------------------------
 // wxDataViewCtrl
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // wxDataViewCtrl
 //-----------------------------------------------------------------------------

+

 WX_DEFINE_LIST(wxDataViewColumnList)
 
 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)
 WX_DEFINE_LIST(wxDataViewColumnList)
 
 IMPLEMENT_DYNAMIC_CLASS(wxDataViewCtrl, wxDataViewCtrlBase)

-

 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
     EVT_SIZE(wxDataViewCtrl::OnSize)
 END_EVENT_TABLE()
 BEGIN_EVENT_TABLE(wxDataViewCtrl, wxDataViewCtrlBase)
     EVT_SIZE(wxDataViewCtrl::OnSize)
 END_EVENT_TABLE()


@@ -3784,8 +3934,8 @@ void wxDataViewCtrl::Init()
 }
 
 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,
 }
 
 bool wxDataViewCtrl::Create(wxWindow *parent, wxWindowID id,

-           const wxPoint& pos, const wxSize& size,
-           long style, const wxValidator& validator )
+                            const wxPoint& pos, const wxSize& size,
+                            long style, const wxValidator& validator )

 {
 //    if ( (style & wxBORDER_MASK) == 0)
 //        style |= wxBORDER_SUNKEN;
 {
 //    if ( (style & wxBORDER_MASK) == 0)
 //        style |= wxBORDER_SUNKEN;


@@ -3827,8 +3977,8 @@ wxBorder wxDataViewCtrl::GetDefaultBorder() const
 
 #ifdef __WXMSW__
 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
 
 #ifdef __WXMSW__
 WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,

-                                       WXWPARAM wParam,
-                                       WXLPARAM lParam)
+                                        WXWPARAM wParam,
+                                        WXLPARAM lParam)

 {
     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
 
 {
     WXLRESULT rc = wxDataViewCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
 


@@ -3848,7 +3998,7 @@ wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
 {
     wxSize newsize = size;
     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
 {
     wxSize newsize = size;
     if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))

-       newsize.y -= m_headerArea->GetSize().y;
+    newsize.y -= m_headerArea->GetSize().y;

 
     return newsize;
 }
 
     return newsize;
 }


@@ -3976,7 +4126,7 @@ wxDataViewColumn *wxDataViewCtrl::GetColumnAt(unsigned int pos) const
     // columns can't be reordered if there is no header window which allows
     // to do this
     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]
     // columns can't be reordered if there is no header window which allows
     // to do this
     const unsigned idx = m_headerArea ? m_headerArea->GetColumnsOrder()[pos]

-                                      : pos;
+                                    : pos;

 
     return GetColumn(idx);
 }
 
     return GetColumn(idx);
 }


@@ -3994,7 +4144,7 @@ int wxDataViewCtrl::GetColumnIndex(const wxDataViewColumn *column) const
 }
 
 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),
 }
 
 void wxDataViewCtrl::ColumnMoved(wxDataViewColumn * WXUNUSED(col),

-                                 unsigned int WXUNUSED(new_pos))
+                                unsigned int WXUNUSED(new_pos))

 {
     // do _not_ reorder m_cols elements here, they should always be in the
     // order in which columns were added, we only display the columns in
 {
     // do _not_ reorder m_cols elements here, they should always be in the
     // order in which columns were added, we only display the columns in


@@ -4044,10 +4194,10 @@ int wxDataViewCtrl::GetColumnPosition( const wxDataViewColumn *column ) const
 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
 {
     return m_sortingColumnIdx == wxNOT_FOUND ? NULL
 wxDataViewColumn *wxDataViewCtrl::GetSortingColumn() const
 {
     return m_sortingColumnIdx == wxNOT_FOUND ? NULL

-                                             : GetColumn(m_sortingColumnIdx);
+                                            : GetColumn(m_sortingColumnIdx);

 }
 
 }
 

-//Selection code with wxDataViewItem as parameters
+// Selection code with wxDataViewItem as parameters

 wxDataViewItem wxDataViewCtrl::GetSelection() const
 {
     return m_clientArea->GetSelection();
 wxDataViewItem wxDataViewCtrl::GetSelection() const
 {
     return m_clientArea->GetSelection();


@@ -4099,7 +4249,7 @@ void wxDataViewCtrl::Select( const wxDataViewItem & item )
     int row = m_clientArea->GetRowByItem( item );
     if( row >= 0 )
     {
     int row = m_clientArea->GetRowByItem( item );
     if( row >= 0 )
     {

-        //Unselect all rows before select another in the single select mode
+        // Unselect all rows before select another in the single select mode

         if (m_clientArea->IsSingleSel())
             m_clientArea->SelectAllRows(false);
         m_clientArea->SelectRow(row, true);
         if (m_clientArea->IsSingleSel())
             m_clientArea->SelectAllRows(false);
         m_clientArea->SelectRow(row, true);


@@ -4123,7 +4273,7 @@ bool wxDataViewCtrl::IsSelected( const wxDataViewItem & item ) const
     return false;
 }
 
     return false;
 }
 

-//Selection code with row number as parameter
+// Selection code with row number as parameter

 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
 {
     sel.Empty();
 int wxDataViewCtrl::GetSelections( wxArrayInt & sel ) const
 {
     sel.Empty();


@@ -4234,12 +4384,14 @@ void wxDataViewCtrl::EnsureVisible( const wxDataViewItem & item, const wxDataVie
 
 }
 
 
 }
 

-void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item, wxDataViewColumn* &column ) const
+void wxDataViewCtrl::HitTest( const wxPoint & point, wxDataViewItem & item,
+                              wxDataViewColumn* &column ) const

 {
     m_clientArea->HitTest(point, item, column);
 }
 
 {
     m_clientArea->HitTest(point, item, column);
 }
 

-wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item, const wxDataViewColumn* column ) const
+wxRect wxDataViewCtrl::GetItemRect( const wxDataViewItem & item,
+                                    const wxDataViewColumn* column ) const

 {
     return m_clientArea->GetItemRect(item, column);
 }
 {
     return m_clientArea->GetItemRect(item, column);
 }


@@ -4276,9 +4428,17 @@ bool wxDataViewCtrl::IsExpanded( const wxDataViewItem & item ) const
     return false;
 }
 
     return false;
 }
 

+void wxDataViewCtrl::StartEditor( const wxDataViewItem & item, unsigned int column )
+{
+    wxDataViewColumn* col = GetColumn( column );
+    if (!col)
+        return;
+
+    wxRect itemRect = GetItemRect(item, col);
+    wxDataViewRenderer* renderer = col->GetRenderer();
+    renderer->StartEditing(item, itemRect);
+}

 
 

- #endif
-    // !wxUSE_GENERICDATAVIEWCTRL
+#endif // !wxUSE_GENERICDATAVIEWCTRL

 
 

-#endif
-    // wxUSE_DATAVIEWCTRL
+#endif // wxUSE_DATAVIEWCTRL