fixing overrelease and out-of-bounds write, fixes #13725

[wxWidgets.git] / src / common / gbsizer.cpp

diff --git a/src/common/gbsizer.cpp b/src/common/gbsizer.cpp
index eb23a2e37218d34bcca785b688a1dc0e96c3445f..773c0f0ebc8ed1153f4f7a0781f5beab584e87fe 100644 (file)
--- a/src/common/gbsizer.cpp
+++ b/src/common/gbsizer.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        gbsizer.cpp
+// Name:        src/common/gbsizer.cpp
 // Purpose:     wxGridBagSizer:  A sizer that can lay out items in a grid,
 //              with items at specified cells, and with the option of row
 //              and/or column spanning
@@ -76,7 +76,6 @@ wxGBSizerItem::wxGBSizerItem( wxSizer *sizer,
 wxGBSizerItem::wxGBSizerItem()
     : wxSizerItem(),
       m_pos(-1,-1),
-      m_span(-1,-1),
       m_gbsizer(NULL)
 {
 }
@@ -187,7 +186,7 @@ wxSizerItem* wxGridBagSizer::Add( wxWindow *window,
     else
     {
         delete item;
-        return (wxSizerItem*)NULL;
+        return NULL;
     }
 }
 
@@ -201,7 +200,7 @@ wxSizerItem* wxGridBagSizer::Add( wxSizer *sizer,
     else
     {
         delete item;
-        return (wxSizerItem*)NULL;
+        return NULL;
     }
 }
 
@@ -215,7 +214,7 @@ wxSizerItem* wxGridBagSizer::Add( int width, int height,
     else
     {
         delete item;
-        return (wxSizerItem*)NULL;
+        return NULL;
     }
 }
 
@@ -278,7 +277,7 @@ wxGBPosition wxGridBagSizer::GetItemPosition(size_t index)
 {
     wxGBPosition badpos(-1,-1);
     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
-    wxCHECK_MSG( node, badpos, _T("Failed to find item.") );
+    wxCHECK_MSG( node, badpos, wxT("Failed to find item.") );
     wxGBSizerItem* item = (wxGBSizerItem*)node->GetData();
     return item->GetPos();
 }
@@ -304,7 +303,7 @@ bool wxGridBagSizer::SetItemPosition(wxSizer *sizer, const wxGBPosition& pos)
 bool wxGridBagSizer::SetItemPosition(size_t index, const wxGBPosition& pos)
 {
     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
-    wxCHECK_MSG( node, false, _T("Failed to find item.") );
+    wxCHECK_MSG( node, false, wxT("Failed to find item.") );
     wxGBSizerItem* item = (wxGBSizerItem*)node->GetData();
     return item->SetPos(pos);
 }
@@ -315,7 +314,7 @@ wxGBSpan wxGridBagSizer::GetItemSpan(wxWindow *window)
 {
     wxGBSpan badspan(-1,-1);
     wxGBSizerItem* item = FindItem(window);
-    wxCHECK_MSG( item, badspan, _T("Failed to find item.") );
+    wxCHECK_MSG( item, badspan, wxT("Failed to find item.") );
     return item->GetSpan();
 }
 
@@ -324,7 +323,7 @@ wxGBSpan wxGridBagSizer::GetItemSpan(wxSizer *sizer)
 {
     wxGBSpan badspan(-1,-1);
     wxGBSizerItem* item = FindItem(sizer);
-    wxCHECK_MSG( item, badspan, _T("Failed to find item.") );
+    wxCHECK_MSG( item, badspan, wxT("Failed to find item.") );
     return item->GetSpan();
 }
 
@@ -333,7 +332,7 @@ wxGBSpan wxGridBagSizer::GetItemSpan(size_t index)
 {
     wxGBSpan badspan(-1,-1);
     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
-    wxCHECK_MSG( node, badspan, _T("Failed to find item.") );
+    wxCHECK_MSG( node, badspan, wxT("Failed to find item.") );
     wxGBSizerItem* item = (wxGBSizerItem*)node->GetData();
     return item->GetSpan();
 }
@@ -359,7 +358,7 @@ bool wxGridBagSizer::SetItemSpan(wxSizer *sizer, const wxGBSpan& span)
 bool wxGridBagSizer::SetItemSpan(size_t index, const wxGBSpan& span)
 {
     wxSizerItemList::compatibility_iterator node = m_children.Item( index );
-    wxCHECK_MSG( node, false, _T("Failed to find item.") );
+    wxCHECK_MSG( node, false, wxT("Failed to find item.") );
     wxGBSizerItem* item = (wxGBSizerItem*)node->GetData();
     return item->SetSpan(span);
 }
@@ -472,10 +471,10 @@ wxSize wxGridBagSizer::CalcMin()
             item->GetPos(row, col);
             item->GetEndPos(endrow, endcol);
 
-            // fill heights and widths upto this item if needed
-            while ( m_rowHeights.GetCount() <= (size_t)endrow )
+            // fill heights and widths up to this item if needed
+            while ( (int)m_rowHeights.GetCount() <= endrow )
                 m_rowHeights.Add(m_emptyCellSize.GetHeight());
-            while ( m_colWidths.GetCount() <= (size_t)endcol )
+            while ( (int)m_colWidths.GetCount() <= endcol )
                 m_colWidths.Add(m_emptyCellSize.GetWidth());
 
             // See if this item increases the size of its row(s) or col(s)
@@ -583,7 +582,7 @@ void wxGridBagSizer::RecalcSizes()
 void wxGridBagSizer::AdjustForOverflow()
 {
     int row, col;
-    
+
     for (row=0; row<(int)m_rowHeights.GetCount(); row++)
     {
         int rowExtra=INT_MAX;
@@ -597,7 +596,7 @@ void wxGridBagSizer::AdjustForOverflow()
 
             int endrow, endcol;
             item->GetEndPos(endrow, endcol);
-            
+
             // If the item starts in this position and doesn't span rows, then
             // just look at the whole item height
             if ( item->GetPos() == pos && endrow == row )
@@ -617,7 +616,7 @@ void wxGridBagSizer::AdjustForOverflow()
 
                 if ( itemHeight < 0 )
                     itemHeight = 0;
-                
+
                 // and check how much is left
                 rowExtra = wxMin(rowExtra, rowHeight - itemHeight);
             }
@@ -640,7 +639,7 @@ void wxGridBagSizer::AdjustForOverflow()
 
             int endrow, endcol;
             item->GetEndPos(endrow, endcol);
-            
+
             if ( item->GetPos() == pos && endcol == col )
             {
                 int itemWidth = item->CalcMin().GetWidth();
@@ -656,7 +655,7 @@ void wxGridBagSizer::AdjustForOverflow()
 
                 if ( itemWidth < 0 )
                     itemWidth = 0;
-                
+
                 colExtra = wxMin(colExtra, colWidth - itemWidth);
             }
         }
@@ -664,7 +663,7 @@ void wxGridBagSizer::AdjustForOverflow()
             m_colWidths[col] -= colExtra;
     }
 
-    
+
 }
 
 //---------------------------------------------------------------------------
@@ -741,56 +740,56 @@ wxSizerItem* wxGridBagSizer::Add( int width, int height, int, int flag, int bord
 wxSizerItem* wxGridBagSizer::Add( wxSizerItem * )
 {
     wxFAIL_MSG(wxT("Invalid Add form called."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Prepend( wxWindow *, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Prepend should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Prepend( wxSizer *, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Prepend should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Prepend( int, int, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Prepend should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Prepend( wxSizerItem * )
 {
     wxFAIL_MSG(wxT("Prepend should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 
 wxSizerItem* wxGridBagSizer::Insert( size_t, wxWindow *, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Insert should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Insert( size_t, wxSizer *, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Insert should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Insert( size_t, int, int, int, int, int, wxObject*  )
 {
     wxFAIL_MSG(wxT("Insert should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }
 
 wxSizerItem* wxGridBagSizer::Insert( size_t, wxSizerItem * )
 {
     wxFAIL_MSG(wxT("Insert should not be used with wxGridBagSizer."));
-    return (wxSizerItem*)NULL;
+    return NULL;
 }