added wxWindow::IsFrozen() (only existed in wxMSW and wxDFB before)

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

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 6d791ab4809f9acf6a6a85d231284f33a33b90e6..5fcffb809e5681f3bd71cf5019027e27fec2ced7 100644 (file)
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -199,7 +199,7 @@ public:
                   wxGridRowLabelWindow *rowLblWin,
                   wxGridColLabelWindow *colLblWin,
                   wxWindowID id, const wxPoint &pos, const wxSize &size );
-    ~wxGridWindow() {}
+    virtual ~wxGridWindow() {}
 
     void ScrollWindow( int dx, int dy, const wxRect *rect );
 
@@ -7957,8 +7957,8 @@ void wxGrid::DrawTextRectangle(wxDC& dc,
             continue;
         }
 
-        long lineWidth,
-             lineHeight;
+        long lineWidth = 0,
+             lineHeight = 0;
         dc.GetTextExtent(line, &lineWidth, &lineHeight);
 
         switch ( horizAlign )
@@ -8532,15 +8532,23 @@ int wxGrid::XToCol( int x, bool clipToMinMax )
     return GetColAt( maxPos );
 }
 
-// return the row number that that the y coord is near the edge of, or
-// -1 if not near an edge
+// return the row number that that the y coord is near
+//  the edge of, or -1 if not near an edge.
+// coords can only possibly be near an edge if
+//    (a) the row/column is large enough to still allow for an "inner" area
+//        that is _not_ nead the edge (i.e., if the height/width is smaller
+//        than WXGRID_LABEL_EDGE_ZONE, coords are _never_ considered to be
+//        near the edge).
+//   and
+//    (b) resizing rows/columns (the thing for which edge detection is
+//        relevant at all) is enabled.
 //
 int wxGrid::YToEdgeOfRow( int y )
 {
     int i;
     i = internalYToRow(y);
 
-    if ( GetRowHeight(i) > WXGRID_LABEL_EDGE_ZONE )
+    if ( GetRowHeight(i) > WXGRID_LABEL_EDGE_ZONE && CanDragRowSize() )
     {
         // We know that we are in row i, test whether we are
         // close enough to lower or upper border, respectively.
@@ -8555,13 +8563,14 @@ int wxGrid::YToEdgeOfRow( int y )
 
 // return the col number that that the x coord is near the edge of, or
 // -1 if not near an edge
+// See comment at YToEdgeOfRow for conditions on edge detection.
 //
 int wxGrid::XToEdgeOfCol( int x )
 {
     int i;
     i = internalXToCol(x);
 
-    if ( GetColWidth(i) > WXGRID_LABEL_EDGE_ZONE )
+    if ( GetColWidth(i) > WXGRID_LABEL_EDGE_ZONE && CanDragColSize() )
     {
         // We know that we are in column i; test whether we are
         // close enough to right or left border, respectively.