implement wxLaunchDefaultApplication() for MSW and document it (#9810)

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

diff --git a/src/generic/grid.cpp b/src/generic/grid.cpp
index 4b73fdedf9be3184feafb37a07325f8a48a8a6a3..bdd93204b5472c16cfe3bd21581fc03d63bac969 100644 (file)
--- a/src/generic/grid.cpp
+++ b/src/generic/grid.cpp
@@ -9944,9 +9944,14 @@ void wxGrid::ClearAttrCache()
 {
     if ( m_attrCache.row != -1 )
     {
-        wxSafeDecRef(m_attrCache.attr);
+        wxGridCellAttr *oldAttr = m_attrCache.attr; 
         m_attrCache.attr = NULL;
         m_attrCache.row = -1;
+        // wxSafeDecRec(...) might cause event processing that accesses
+        // the cached attribute, if one exists (e.g. by deleting the
+        // editor stored within the attribute). Therefore it is important
+       // to invalidate the cache  before calling wxSafeDecRef!
+        wxSafeDecRef(oldAttr);
     }
 }
 
@@ -10189,7 +10194,7 @@ void wxGrid::SetCellSize( int row, int col, int num_rows, int num_cols )
                       wxT("wxGrid::SetCellSize setting cell size to < 1"));
 
         // if this was already a multicell then "turn off" the other cells first
-        if ((cell_rows > 1) || (cell_rows > 1))
+        if ((cell_rows > 1) || (cell_cols > 1))
         {
             int i, j;
             for (j=row; j < row + cell_rows; j++)