Rename wxWebNavigationError to wxWebViewNavigationError and wxWebNavigationEvent...

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

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 04fbd31efef7c11e553c21bac314f01836f87aef..8326934f7f67b3c8dcc3f872fff504a4dd88026f 100644 (file)
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -156,6 +156,23 @@ wxDEFINE_EVENT( wxEVT_GRID_EDITOR_SHOWN, wxGridEvent );
 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_HIDDEN, wxGridEvent );
 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_CREATED, wxGridEditorCreatedEvent );
 
 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_HIDDEN, wxGridEvent );
 wxDEFINE_EVENT( wxEVT_GRID_EDITOR_CREATED, wxGridEditorCreatedEvent );
 

+// ----------------------------------------------------------------------------
+// private helpers
+// ----------------------------------------------------------------------------
+
+namespace
+{
+    
+    // ensure that first is less or equal to second, swapping the values if
+    // necessary
+    void EnsureFirstLessThanSecond(int& first, int& second)
+    {
+        if ( first > second )
+            wxSwap(first, second);
+    }
+    
+} // anonymous namespace
+

 // ============================================================================
 // implementation
 // ============================================================================
 // ============================================================================
 // implementation
 // ============================================================================


@@ -170,6 +187,8 @@ END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxGridHeaderCtrl, wxHeaderCtrl)
     EVT_HEADER_CLICK(wxID_ANY, wxGridHeaderCtrl::OnClick)
 
 BEGIN_EVENT_TABLE(wxGridHeaderCtrl, wxHeaderCtrl)
     EVT_HEADER_CLICK(wxID_ANY, wxGridHeaderCtrl::OnClick)

+    EVT_HEADER_DCLICK(wxID_ANY, wxGridHeaderCtrl::OnDoubleClick)
+    EVT_HEADER_RIGHT_CLICK(wxID_ANY, wxGridHeaderCtrl::OnRightClick)

 
     EVT_HEADER_BEGIN_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnBeginResize)
     EVT_HEADER_RESIZING(wxID_ANY, wxGridHeaderCtrl::OnResizing)
 
     EVT_HEADER_BEGIN_RESIZE(wxID_ANY, wxGridHeaderCtrl::OnBeginResize)
     EVT_HEADER_RESIZING(wxID_ANY, wxGridHeaderCtrl::OnResizing)


@@ -1515,9 +1534,8 @@ bool wxGridStringTable::DeleteCols( size_t pos, size_t numCols )
         // m_colLabels stores just as many elements as it needs, e.g. if only
         // the label of the first column had been set it would have only one
         // element and not numCols, so account for it
         // m_colLabels stores just as many elements as it needs, e.g. if only
         // the label of the first column had been set it would have only one
         // element and not numCols, so account for it

-        int nToRm = m_colLabels.size() - colID;
-        if ( nToRm > 0 )
-            m_colLabels.RemoveAt( colID, nToRm );
+        int numRemaining = m_colLabels.size() - colID;
+        m_colLabels.RemoveAt( colID, wxMin(numCols, numRemaining) );

     }
 
     if ( numCols >= curNumCols )
     }
 
     if ( numCols >= curNumCols )


@@ -1837,58 +1855,6 @@ void wxGridWindow::OnFocus(wxFocusEvent& event)
 
 /////////////////////////////////////////////////////////////////////
 
 
 /////////////////////////////////////////////////////////////////////
 

-#if wxUSE_EXTENDED_RTTI
-WX_DEFINE_FLAGS( wxGridStyle )
-
-wxBEGIN_FLAGS( wxGridStyle )
-    // new style border flags, we put them first to
-    // use them for streaming out
-    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
-    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
-    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
-    wxFLAGS_MEMBER(wxBORDER_RAISED)
-    wxFLAGS_MEMBER(wxBORDER_STATIC)
-    wxFLAGS_MEMBER(wxBORDER_NONE)
-
-    // old style border flags
-    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
-    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
-    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
-    wxFLAGS_MEMBER(wxRAISED_BORDER)
-    wxFLAGS_MEMBER(wxSTATIC_BORDER)
-    wxFLAGS_MEMBER(wxBORDER)
-
-    // standard window styles
-    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
-    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
-    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
-    wxFLAGS_MEMBER(wxWANTS_CHARS)
-    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
-    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB)
-    wxFLAGS_MEMBER(wxVSCROLL)
-    wxFLAGS_MEMBER(wxHSCROLL)
-
-wxEND_FLAGS( wxGridStyle )
-
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxGrid, wxScrolledWindow,"wx/grid.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxGrid)
-    wxHIDE_PROPERTY( Children )
-    wxPROPERTY_FLAGS( WindowStyle , wxGridStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-wxEND_PROPERTIES_TABLE()
-
-wxBEGIN_HANDLERS_TABLE(wxGrid)
-wxEND_HANDLERS_TABLE()
-
-wxCONSTRUCTOR_5( wxGrid , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
-
-/*
- TODO : Expose more information of a list's layout, etc. via appropriate objects (e.g., NotebookPageInfo)
-*/
-#else
-IMPLEMENT_DYNAMIC_CLASS( wxGrid, wxScrolledWindow )
-#endif
-

 BEGIN_EVENT_TABLE( wxGrid, wxScrolledWindow )
     EVT_PAINT( wxGrid::OnPaint )
     EVT_SIZE( wxGrid::OnSize )
 BEGIN_EVENT_TABLE( wxGrid, wxScrolledWindow )
     EVT_PAINT( wxGrid::OnPaint )
     EVT_SIZE( wxGrid::OnSize )


@@ -1911,7 +1877,6 @@ bool wxGrid::Create(wxWindow *parent, wxWindowID id,
 
     Create();
     SetInitialSize(size);
 
     Create();
     SetInitialSize(size);

-    SetScrollRate(m_scrollLineX, m_scrollLineY);

     CalcDimensions();
 
     return true;
     CalcDimensions();
 
     return true;


@@ -2100,8 +2065,7 @@ wxGrid::SetTable(wxGridTableBase *table,
             m_table = NULL;
         }
 
             m_table = NULL;
         }
 

-        delete m_selection;
-        m_selection = NULL;
+        wxDELETE(m_selection);

 
         m_ownTable = false;
         m_numRows = 0;
 
         m_ownTable = false;
         m_numRows = 0;


@@ -2250,8 +2214,11 @@ void wxGrid::Init()
     m_extraWidth =
     m_extraHeight = 0;
 
     m_extraWidth =
     m_extraHeight = 0;
 

-    m_scrollLineX = GRID_SCROLL_LINE_X;
-    m_scrollLineY = GRID_SCROLL_LINE_Y;
+    // we can't call SetScrollRate() as the window isn't created yet but OTOH
+    // we don't need to call it neither as the scroll position is (0, 0) right
+    // now anyhow, so just set the parameters directly
+    m_xScrollPixelsPerLine = GRID_SCROLL_LINE_X;
+    m_yScrollPixelsPerLine = GRID_SCROLL_LINE_Y;

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


@@ -3101,7 +3068,7 @@ void wxGrid::ProcessRowLabelMouseEvent( wxMouseEvent& event )
             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
             m_dragLastPos = -1;
         }
             ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL, GetColLabelWindow());
             m_dragLastPos = -1;
         }

-        else // not on row separator or it's not resizeable
+        else // not on row separator or it's not resizable

         {
             row = YToRow(y);
             if ( row >=0 &&
         {
             row = YToRow(y);
             if ( row >=0 &&


@@ -3469,7 +3436,34 @@ void wxGrid::ProcessColLabelMouseEvent( wxMouseEvent& event )
                 }
                 else
                 {
                 }
                 else
                 {

-                    DoEndMoveCol(XToPos(x));
+                    // get the position of the column we're over
+                    int pos = XToPos(x);
+
+                    // we may need to adjust the drop position but don't bother
+                    // checking for it if we can't anyhow
+                    if ( pos > 1 )
+                    {
+                        // also find the index of the column we're over: notice
+                        // that the existing "col" variable may be invalid but
+                        // we need a valid one here
+                        const int colValid = GetColAt(pos);
+
+                        // if we're on the "near" (usually left but right in
+                        // RTL case) part of the column, the actual position we
+                        // should be placed in is actually the one before it
+                        bool onNearPart;
+                        const int middle = GetColLeft(colValid) +
+                                                GetColWidth(colValid)/2;
+                        if ( GetLayoutDirection() == wxLayout_LeftToRight )
+                            onNearPart = (x <= middle);
+                        else // wxLayout_RightToLeft
+                            onNearPart = (x > middle);
+
+                        if ( onNearPart )
+                            pos--;
+                    }
+
+                    DoEndMoveCol(pos);

                 }
                 break;
 
                 }
                 break;
 


@@ -3582,7 +3576,7 @@ void wxGrid::ChangeCursorMode(CursorMode mode,
                               bool captureMouse)
 {
 #if wxUSE_LOG_TRACE
                               bool captureMouse)
 {
 #if wxUSE_LOG_TRACE

-    static const wxChar *cursorModes[] =
+    static const wxChar *const cursorModes[] =

     {
         wxT("SELECT_CELL"),
         wxT("RESIZE_ROW"),
     {
         wxT("SELECT_CELL"),
         wxT("RESIZE_ROW"),


@@ -3765,6 +3759,8 @@ void wxGrid::DoGridDragEvent(wxMouseEvent& event, const wxGridCellCoords& coords
 
     if ( isFirstDrag )
     {
 
     if ( isFirstDrag )
     {

+        wxASSERT_MSG( !m_winCapture, "shouldn't capture the mouse twice" );
+

         m_winCapture = m_gridWin;
         m_winCapture->CaptureMouse();
     }
         m_winCapture = m_gridWin;
         m_winCapture->CaptureMouse();
     }


@@ -3810,6 +3806,29 @@ wxGrid::DoGridCellLeftDown(wxMouseEvent& event,
         }
         else
         {
         }
         else
         {

+            if ( m_selection )
+            {
+                // In row or column selection mode just clicking on the cell
+                // should select the row or column containing it: this is more
+                // convenient for the kinds of controls that use such selection
+                // mode and is compatible with 2.8 behaviour (see #12062).
+                switch ( m_selection->GetSelectionMode() )
+                {
+                    case wxGridSelectCells:
+                    case wxGridSelectRowsOrColumns:
+                        // nothing to do in these cases
+                        break;
+
+                    case wxGridSelectRows:
+                        m_selection->SelectRow(coords.GetRow());
+                        break;
+
+                    case wxGridSelectColumns:
+                        m_selection->SelectCol(coords.GetCol());
+                        break;
+                }
+            }
+

             m_waitForSlowClick = m_currentCellCoords == coords &&
                                         coords != wxGridNoCellCoords;
             SetCurrentCell( coords );
             m_waitForSlowClick = m_currentCellCoords == coords &&
                                         coords != wxGridNoCellCoords;
             SetCurrentCell( coords );


@@ -3944,6 +3963,14 @@ wxGrid::DoGridMouseMoveEvent(wxMouseEvent& WXUNUSED(event),
 
 void wxGrid::ProcessGridCellMouseEvent(wxMouseEvent& event)
 {
 
 void wxGrid::ProcessGridCellMouseEvent(wxMouseEvent& event)
 {

+    if ( event.Entering() || event.Leaving() )
+    {
+        // we don't care about these events but we must not reset m_isDragging
+        // if they happen so return before anything else is done
+        event.Skip();
+        return;
+    }
+

     const wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
 
     // coordinates of the cell under mouse
     const wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
 
     // coordinates of the cell under mouse


@@ -3969,17 +3996,6 @@ void wxGrid::ProcessGridCellMouseEvent(wxMouseEvent& event)
     m_isDragging = false;
     m_startDragPos = wxDefaultPosition;
 
     m_isDragging = false;
     m_startDragPos = wxDefaultPosition;
 

-    // VZ: if we do this, the mode is reset to WXGRID_CURSOR_SELECT_CELL
-    //     immediately after it becomes WXGRID_CURSOR_RESIZE_ROW/COL under
-    //     wxGTK
-#if 0
-    if ( event.Entering() || event.Leaving() )
-    {
-        ChangeCursorMode(WXGRID_CURSOR_SELECT_CELL);
-        m_gridWin->SetCursor( *wxSTANDARD_CURSOR );
-    }
-#endif // 0
-

     // deal with various button presses
     if ( event.IsButton() )
     {
     // deal with various button presses
     if ( event.IsButton() )
     {


@@ -4080,13 +4096,13 @@ bool wxGrid::DoEndDragResizeLine(const wxGridOperations& oper)
             oper.SelectSize(rect) = oper.Select(size);
 
             int subtractLines = 0;
             oper.SelectSize(rect) = oper.Select(size);
 
             int subtractLines = 0;

-            const int lineStart = oper.PosToLine(this, posLineStart);
+            const int lineStart = doper.PosToLine(this, posLineStart);

             if ( lineStart >= 0 )
             {
                 // ensure that if we have a multi-cell block we redraw all of
                 // it by increasing the refresh area to cover it entirely if a
                 // part of it is affected
             if ( lineStart >= 0 )
             {
                 // ensure that if we have a multi-cell block we redraw all of
                 // it by increasing the refresh area to cover it entirely if a
                 // part of it is affected

-                const int lineEnd = oper.PosToLine(this, posLineEnd, true);
+                const int lineEnd = doper.PosToLine(this, posLineEnd, true);

                 for ( int line = lineStart; line < lineEnd; line++ )
                 {
                     int cellLines = oper.Select(
                 for ( int line = lineStart; line < lineEnd; line++ )
                 {
                     int cellLines = oper.Select(


@@ -4621,25 +4637,15 @@ void wxGrid::OnKeyDown( wxKeyEvent& event )
                 break;
 
             case WXK_HOME:
                 break;
 
             case WXK_HOME:

-                if ( event.ControlDown() )
-                {
-                    GoToCell(0, 0);
-                }
-                else
-                {
-                    event.Skip();
-                }
+                GoToCell(event.ControlDown() ? 0
+                                             : m_currentCellCoords.GetRow(),
+                         0);

                 break;
 
             case WXK_END:
                 break;
 
             case WXK_END:

-                if ( event.ControlDown() )
-                {
-                    GoToCell(m_numRows - 1, m_numCols - 1);
-                }
-                else
-                {
-                    event.Skip();
-                }
+                GoToCell(event.ControlDown() ? m_numRows - 1
+                                             : m_currentCellCoords.GetRow(),
+                         m_numCols - 1);

                 break;
 
             case WXK_PAGEUP:
                 break;
 
             case WXK_PAGEUP:


@@ -4817,6 +4823,9 @@ void
 wxGrid::UpdateBlockBeingSelected(int topRow, int leftCol,
                                  int bottomRow, int rightCol)
 {
 wxGrid::UpdateBlockBeingSelected(int topRow, int leftCol,
                                  int bottomRow, int rightCol)
 {

+    MakeCellVisible(m_selectedBlockCorner);
+    m_selectedBlockCorner = wxGridCellCoords(bottomRow, rightCol);
+

     if ( m_selection )
     {
         switch ( m_selection->GetSelectionMode() )
     if ( m_selection )
     {
         switch ( m_selection->GetSelectionMode() )


@@ -4853,9 +4862,6 @@ wxGrid::UpdateBlockBeingSelected(int topRow, int leftCol,
         }
     }
 
         }
     }
 

-    m_selectedBlockCorner = wxGridCellCoords(bottomRow, rightCol);
-    MakeCellVisible(m_selectedBlockCorner);
-

     EnsureFirstLessThanSecond(topRow, bottomRow);
     EnsureFirstLessThanSecond(leftCol, rightCol);
 
     EnsureFirstLessThanSecond(topRow, bottomRow);
     EnsureFirstLessThanSecond(leftCol, rightCol);
 


@@ -5573,6 +5579,11 @@ void wxGrid::DrawColLabel(wxDC& dc, int col)
     }
     else
     {
     }
     else
     {

+        // It is reported that we need to erase the background to avoid display
+        // artefacts, see #12055.
+        wxDCBrushChanger setBrush(dc, m_colWindow->GetBackgroundColour());
+        dc.DrawRectangle(rect);
+

         rend.DrawBorder(*this, dc, rect);
     }
 
         rend.DrawBorder(*this, dc, rect);
     }
 


@@ -5845,8 +5856,8 @@ void wxGrid::EnableCellEditControl( bool enable )
 
 bool wxGrid::IsCurrentCellReadOnly() const
 {
 
 bool wxGrid::IsCurrentCellReadOnly() const
 {

-    // const_cast
-    wxGridCellAttr* attr = ((wxGrid *)this)->GetCellAttr(m_currentCellCoords);
+    wxGridCellAttr*
+        attr = const_cast<wxGrid *>(this)->GetCellAttr(m_currentCellCoords);

     bool readonly = attr->IsReadOnly();
     attr->DecRef();
 
     bool readonly = attr->IsReadOnly();
     attr->DecRef();
 


@@ -6234,7 +6245,9 @@ int wxGrid::PosToEdgeOfLine(int pos, const wxGridOperations& oper) const
         else if ( line > 0 &&
                     pos - oper.GetLineStartPos(this,
                                                line) < WXGRID_LABEL_EDGE_ZONE )
         else if ( line > 0 &&
                     pos - oper.GetLineStartPos(this,
                                                line) < WXGRID_LABEL_EDGE_ZONE )

-            return line - 1;
+        {
+            return oper.GetLineBefore(this, line);
+        }

     }
 
     return -1;
     }
 
     return -1;


@@ -6362,7 +6375,7 @@ void wxGrid::MakeCellVisible( int row, int col )
             //
             // Sometimes GRID_SCROLL_LINE / 2 is not enough,
             // so just add a full scroll unit...
             //
             // Sometimes GRID_SCROLL_LINE / 2 is not enough,
             // so just add a full scroll unit...

-            ypos += m_scrollLineY;
+            ypos += m_yScrollPixelsPerLine;

         }
 
         // special handling for wide cells - show always left part of the cell!
         }
 
         // special handling for wide cells - show always left part of the cell!


@@ -6381,15 +6394,15 @@ void wxGrid::MakeCellVisible( int row, int col )
             xpos = x0 + (right - cw);
 
             // see comment for ypos above
             xpos = x0 + (right - cw);
 
             // see comment for ypos above

-            xpos += m_scrollLineX;
+            xpos += m_xScrollPixelsPerLine;

         }
 
         if ( xpos != -1 || ypos != -1 )
         {
             if ( xpos != -1 )
         }
 
         if ( xpos != -1 || ypos != -1 )
         {
             if ( xpos != -1 )

-                xpos /= m_scrollLineX;
+                xpos /= m_xScrollPixelsPerLine;

             if ( ypos != -1 )
             if ( ypos != -1 )

-                ypos /= m_scrollLineY;
+                ypos /= m_yScrollPixelsPerLine;

             Scroll( xpos, ypos );
             AdjustScrollbars();
         }
             Scroll( xpos, ypos );
             AdjustScrollbars();
         }


@@ -6904,7 +6917,7 @@ void wxGrid::SetCellHighlightPenWidth(int width)
         m_cellHighlightPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't
         m_cellHighlightPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't

-        // make any visible change if the the thickness is getting smaller.
+        // make any visible change if the thickness is getting smaller.

         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
         if ( row == -1 || col == -1 || GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
         if ( row == -1 || col == -1 || GetColWidth(col) <= 0 || GetRowHeight(row) <= 0 )


@@ -6922,7 +6935,7 @@ void wxGrid::SetCellHighlightROPenWidth(int width)
         m_cellHighlightROPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't
         m_cellHighlightROPenWidth = width;
 
         // Just redrawing the cell highlight is not enough since that won't

-        // make any visible change if the the thickness is getting smaller.
+        // make any visible change if the thickness is getting smaller.

         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
         if ( row == -1 || col == -1 ||
         int row = m_currentCellCoords.GetRow();
         int col = m_currentCellCoords.GetCol();
         if ( row == -1 || col == -1 ||


@@ -7139,11 +7152,21 @@ bool wxGrid::GetCellOverflow( int row, int col ) const
     return allow;
 }
 
     return allow;
 }
 

-void wxGrid::GetCellSize( int row, int col, int *num_rows, int *num_cols ) const
+wxGrid::CellSpan
+wxGrid::GetCellSize( int row, int col, int *num_rows, int *num_cols ) const

 {
     wxGridCellAttr *attr = GetCellAttr(row, col);
     attr->GetSize( num_rows, num_cols );
     attr->DecRef();
 {
     wxGridCellAttr *attr = GetCellAttr(row, col);
     attr->GetSize( num_rows, num_cols );
     attr->DecRef();

+
+    if ( *num_rows == 1 && *num_cols == 1 )
+        return CellSpan_None; // just a normal cell
+
+    if ( *num_rows < 0 || *num_cols < 0 )
+        return CellSpan_Inside; // covered by a multi-span cell
+
+    // this cell spans multiple cells to its right/bottom
+    return CellSpan_Main;

 }
 
 wxGridCellRenderer* wxGrid::GetCellRenderer(int row, int col) const
 }
 
 wxGridCellRenderer* wxGrid::GetCellRenderer(int row, int col) const


@@ -7202,11 +7225,18 @@ void wxGrid::ClearAttrCache()
     }
 }
 
     }
 }
 

+void wxGrid::RefreshAttr(int row, int col)
+{
+    if ( m_attrCache.row == row && m_attrCache.col == col )
+        ClearAttrCache();
+}
+
+

 void wxGrid::CacheAttr(int row, int col, wxGridCellAttr *attr) const
 {
     if ( attr != NULL )
     {
 void wxGrid::CacheAttr(int row, int col, wxGridCellAttr *attr) const
 {
     if ( attr != NULL )
     {

-        wxGrid *self = (wxGrid *)this;  // const_cast
+        wxGrid * const self = const_cast<wxGrid *>(this);

 
         self->ClearAttrCache();
         self->m_attrCache.row = row;
 
         self->ClearAttrCache();
         self->m_attrCache.row = row;


@@ -7802,13 +7832,20 @@ wxGrid::AutoSizeColOrRow(int colOrRow, bool setAsMin, wxGridDirection direction)
     HideCellEditControl();
     SaveEditControlValue();
 
     HideCellEditControl();
     SaveEditControlValue();
 

-    // init both of them to avoid compiler warnings, even if we only need one
-    int row = -1,
-        col = -1;
+    // initialize both of them just to avoid compiler warnings even if only
+    // really needs to be initialized here
+    int row,
+        col;

     if ( column )
     if ( column )

+    {
+        row = -1;

         col = colOrRow;
         col = colOrRow;

+    }

     else
     else

+    {

         row = colOrRow;
         row = colOrRow;

+        col = -1;
+    }

 
     wxCoord extent, extentMax = 0;
     int max = column ? m_numRows : m_numCols;
 
     wxCoord extent, extentMax = 0;
     int max = column ? m_numRows : m_numCols;


@@ -7819,12 +7856,41 @@ wxGrid::AutoSizeColOrRow(int colOrRow, bool setAsMin, wxGridDirection direction)
         else
             col = rowOrCol;
 
         else
             col = rowOrCol;
 

+        // we need to account for the cells spanning multiple columns/rows:
+        // while they may need a lot of space, they don't need all of it in
+        // this column/row
+        int numRows, numCols;
+        const CellSpan span = GetCellSize(row, col, &numRows, &numCols);
+        if ( span == CellSpan_Inside )
+        {
+            // we need to get the size of the main cell, not of a cell hidden
+            // by it
+            row += numRows;
+            col += numCols;
+
+            // get the size of the main cell too
+            GetCellSize(row, col, &numRows, &numCols);
+        }
+

         wxGridCellAttr *attr = GetCellAttr(row, col);
         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
         if ( renderer )
         {
             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
             extent = column ? size.x : size.y;
         wxGridCellAttr *attr = GetCellAttr(row, col);
         wxGridCellRenderer *renderer = attr->GetRenderer(this, row, col);
         if ( renderer )
         {
             wxSize size = renderer->GetBestSize(*this, *attr, dc, row, col);
             extent = column ? size.x : size.y;

+
+            if ( span != CellSpan_None )
+            {
+                // we spread the size of a spanning cell over all the cells it
+                // covers evenly -- this is probably not ideal but we can't
+                // really do much better here
+                //
+                // notice that numCols and numRows are never 0 as they
+                // correspond to the size of the main cell of the span and not
+                // of the cell inside it
+                extent /= column ? numCols : numRows;
+            }
+

             if ( extent > extentMax )
                 extentMax = extent;
 
             if ( extent > extentMax )
                 extentMax = extent;
 


@@ -8026,10 +8092,8 @@ void wxGrid::AutoSize()
     // we know that we're not going to have scrollbars so disable them now to
     // avoid trouble in SetClientSize() which can otherwise set the correct
     // client size but also leave space for (not needed any more) scrollbars
     // we know that we're not going to have scrollbars so disable them now to
     // avoid trouble in SetClientSize() which can otherwise set the correct
     // client size but also leave space for (not needed any more) scrollbars

-    SetScrollbars(0, 0, 0, 0, 0, 0, true);
-
-    // restore the scroll rate parameters overwritten by SetScrollbars()
-    SetScrollRate(m_scrollLineX, m_scrollLineY);
+    SetScrollbars(m_xScrollPixelsPerLine, m_yScrollPixelsPerLine,
+                  0, 0, 0, 0, true);

 
     SetClientSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight);
 }
 
     SetClientSize(size.x + m_rowLabelWidth, size.y + m_colLabelHeight);
 }


@@ -8066,7 +8130,7 @@ void wxGrid::AutoSizeColLabelSize( int col )
 
 wxSize wxGrid::DoGetBestSize() const
 {
 
 wxSize wxGrid::DoGetBestSize() const
 {

-    wxGrid *self = (wxGrid *)this;  // const_cast
+    wxGrid * const self = const_cast<wxGrid *>(this);

 
     // we do the same as in AutoSize() here with the exception that we don't
     // change the column/row sizes, only calculate them
 
     // we do the same as in AutoSize() here with the exception that we don't
     // change the column/row sizes, only calculate them