X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/22a35096a0a9c3fe4d3d32b8d68a361126ef9677..eea4d01c65f9b29baa1193db762b4c6b8144af24:/src/common/gbsizer.cpp

diff --git a/src/common/gbsizer.cpp b/src/common/gbsizer.cpp
index 8188383c6a..d9451c0983 100644
--- 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;
     }
 }
 
@@ -228,6 +227,18 @@ wxSizerItem* wxGridBagSizer::Add( wxGBSizerItem *item )
     if ( item->GetWindow() )
         item->GetWindow()->SetContainingSizer( this );
 
+    // extend the number of rows/columns of the underlying wxFlexGridSizer if
+    // necessary
+    int row, col;
+    item->GetEndPos(row, col);
+    row++;
+    col++;
+
+    if ( row > GetRows() )
+        SetRows(row);
+    if ( col > GetCols() )
+        SetCols(col);
+
     return item;
 }
 
@@ -266,7 +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();
 }
@@ -292,7 +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);
 }
@@ -303,7 +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();
 }
 
@@ -312,7 +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();
 }
 
@@ -321,7 +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();
 }
@@ -347,7 +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);
 }
@@ -461,9 +472,9 @@ wxSize wxGridBagSizer::CalcMin()
             item->GetEndPos(endrow, endcol);
 
             // fill heights and widths upto this item if needed
-            while ( m_rowHeights.GetCount() <= (size_t)endrow )
+            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)
@@ -476,6 +487,7 @@ wxSize wxGridBagSizer::CalcMin()
         node = node->GetNext();
     }
 
+    AdjustForOverflow();
     AdjustForFlexDirection();
 
     // Now traverse the heights and widths arrays calcing the totals, including gaps
@@ -507,7 +519,7 @@ void wxGridBagSizer::RecalcSizes()
     m_cols = m_colWidths.GetCount();
     int idx, width, height;
 
-    AdjustForGrowables(sz, m_calculatedMinSize, m_rows, m_cols);
+    AdjustForGrowables(sz);
 
     // Find the start positions on the window of the rows and columns
     wxArrayInt rowpos;
@@ -537,26 +549,122 @@ void wxGridBagSizer::RecalcSizes()
     {
         int row, col, endrow, endcol;
         wxGBSizerItem* item = (wxGBSizerItem*)node->GetData();
-        item->GetPos(row, col);
-        item->GetEndPos(endrow, endcol);
 
-        height = 0;
-        for(idx=row; idx <= endrow; idx++)
-            height += m_rowHeights[idx];
-        height += (endrow - row) * m_vgap; // add a vgap for every row spanned
+        if ( item->IsShown() )
+        {
+            item->GetPos(row, col);
+            item->GetEndPos(endrow, endcol);
 
-        width = 0;
-        for (idx=col; idx <= endcol; idx++)
-            width += m_colWidths[idx];
-        width += (endcol - col) * m_hgap; // add a hgap for every col spanned
+            height = 0;
+            for(idx=row; idx <= endrow; idx++)
+                height += m_rowHeights[idx];
+            height += (endrow - row) * m_vgap; // add a vgap for every row spanned
 
-        SetItemBounds(item, colpos[col], rowpos[row], width, height);
+            width = 0;
+            for (idx=col; idx <= endcol; idx++)
+                width += m_colWidths[idx];
+            width += (endcol - col) * m_hgap; // add a hgap for every col spanned
+
+            SetItemBounds(item, colpos[col], rowpos[row], width, height);
+        }
 
         node = node->GetNext();
     }
 }
 
 
+// Sometimes CalcMin can result in some rows or cols having too much space in
+// them because as it traverses the items it makes some assumptions when
+// items span to other cells.  But those assumptions can become invalid later
+// on when other items are fitted into the same rows or columns that the
+// spanning item occupies. This method tries to find those situations and
+// fixes them.
+void wxGridBagSizer::AdjustForOverflow()
+{
+    int row, col;
+
+    for (row=0; row<(int)m_rowHeights.GetCount(); row++)
+    {
+        int rowExtra=INT_MAX;
+        int rowHeight = m_rowHeights[row];
+        for (col=0; col<(int)m_colWidths.GetCount(); col++)
+        {
+            wxGBPosition pos(row,col);
+            wxGBSizerItem* item = FindItemAtPosition(pos);
+            if ( !item || !item->IsShown() )
+                continue;
+
+            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 )
+            {
+                int itemHeight = item->CalcMin().GetHeight();
+                rowExtra = wxMin(rowExtra, rowHeight - itemHeight);
+                continue;
+            }
+
+            // Otherwise, only look at spanning items if they end on this row
+            if ( endrow == row )
+            {
+                // first deduct the portions of the item that are on prior rows
+                int itemHeight = item->CalcMin().GetHeight();
+                for (int r=item->GetPos().GetRow(); r<row; r++)
+                    itemHeight -= (m_rowHeights[r] + GetHGap());
+
+                if ( itemHeight < 0 )
+                    itemHeight = 0;
+
+                // and check how much is left
+                rowExtra = wxMin(rowExtra, rowHeight - itemHeight);
+            }
+        }
+        if ( rowExtra && rowExtra != INT_MAX )
+            m_rowHeights[row] -= rowExtra;
+    }
+
+    // Now do the same thing for columns
+    for (col=0; col<(int)m_colWidths.GetCount(); col++)
+    {
+        int colExtra=INT_MAX;
+        int colWidth = m_colWidths[col];
+        for (row=0; row<(int)m_rowHeights.GetCount(); row++)
+        {
+            wxGBPosition pos(row,col);
+            wxGBSizerItem* item = FindItemAtPosition(pos);
+            if ( !item || !item->IsShown() )
+                continue;
+
+            int endrow, endcol;
+            item->GetEndPos(endrow, endcol);
+
+            if ( item->GetPos() == pos && endcol == col )
+            {
+                int itemWidth = item->CalcMin().GetWidth();
+                colExtra = wxMin(colExtra, colWidth - itemWidth);
+                continue;
+            }
+
+            if ( endcol == col )
+            {
+                int itemWidth = item->CalcMin().GetWidth();
+                for (int c=item->GetPos().GetCol(); c<col; c++)
+                    itemWidth -= (m_colWidths[c] + GetVGap());
+
+                if ( itemWidth < 0 )
+                    itemWidth = 0;
+
+                colExtra = wxMin(colExtra, colWidth - itemWidth);
+            }
+        }
+        if ( colExtra && colExtra != INT_MAX )
+            m_colWidths[col] -= colExtra;
+    }
+
+
+}
 
 //---------------------------------------------------------------------------
 
@@ -632,56 +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;
 }