test whether pointer is non-NULL before using it, not after, in wxDoFindStringInList...

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

diff --git a/src/generic/odcombo.cpp b/src/generic/odcombo.cpp
index c72efc280cdf16387145d1d0ae24fbe8947edcf1..575641d93dc2e1b2e61e690ea4ace8f6ba34c7f8 100644 (file)
--- a/src/generic/odcombo.cpp
+++ b/src/generic/odcombo.cpp
@@ -107,7 +107,13 @@ void wxVListBoxComboPopup::PaintComboControl( wxDC& dc, const wxRect& rect )
 {
     if ( !(m_combo->GetWindowStyle() & wxODCB_STD_CONTROL_PAINT) )
     {
-        OnDrawBg(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
+        int flags = wxODCB_PAINTING_CONTROL;
+
+        if ( m_combo->ShouldDrawFocus() )
+            flags |= wxODCB_PAINTING_SELECTED;
+
+        OnDrawBg(dc, rect, m_value, flags);
+
         if ( m_value >= 0 )
         {
             OnDrawItem(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
@@ -165,6 +171,9 @@ void wxVListBoxComboPopup::OnDrawBg( wxDC& dc,
     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 
+    if ( IsCurrent((size_t)item) && !(flags & wxODCB_PAINTING_CONTROL) )
+        flags |= wxODCB_PAINTING_SELECTED;
+
     combo->OnDrawBackground(dc,rect,item,flags);
 }
 
@@ -201,7 +210,7 @@ void wxVListBoxComboPopup::DismissWithEvent()
     m_value = selection;
 
     if ( valStr != m_combo->GetValue() )
-        m_combo->SetValue(valStr);
+        m_combo->SetValueWithEvent(valStr);
 
     SendComboBoxEvent(selection);
 }
@@ -556,8 +565,16 @@ void wxVListBoxComboPopup::Delete( unsigned int item )
     if ( (int)item == m_widestItem )
         m_findWidest = true;
 
+    int sel = GetSelection();
+
     if ( IsCreated() )
         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
+
+    // Fix selection
+    if ( (int)item < sel )
+        SetSelection(sel-1);
+    else if ( (int)item == sel )
+        SetSelection(wxNOT_FOUND);
 }
 
 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
@@ -707,6 +724,8 @@ wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int
 {
     int height = 250;
 
+    maxHeight -= 2;  // Must take borders into account
+
     if ( m_strings.GetCount() )
     {
         if ( prefHeight > 0 )
@@ -726,8 +745,7 @@ wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int
             // NB: Calculations that take variable height into account
             //     are unnecessary.
             int fih = GetLineHeight(0);
-            int shown = height/fih;
-            height = shown * fih;
+            height -= height % fih;
         }
     }
     else
@@ -1045,20 +1063,25 @@ wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
     return -1;
 }
 
-void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, const wxRect& rect, int item, int flags) const
+void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc,
+                                            const wxRect& rect,
+                                            int WXUNUSED(item),
+                                            int flags) const
 {
-    // we need to render selected and current items differently
-    if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) ||
-         (flags & wxODCB_PAINTING_CONTROL) )
+    // We need only to explicitly draw background for items
+    // that should have selected background. Also, call PrepareBackground
+    // always when painting the control so that clipping is done properly.
+
+    if ( (flags & wxODCB_PAINTING_SELECTED) ||
+         ((flags & wxODCB_PAINTING_CONTROL) && HasFlag(wxCB_READONLY)) )
     {
-        int focusFlag = wxCONTROL_SELECTED;
+        int bgFlags = wxCONTROL_SELECTED;
 
-        if ( (flags & wxODCB_PAINTING_CONTROL) != wxODCB_PAINTING_CONTROL )
-            focusFlag |= wxCONTROL_ISSUBMENU;
+        if ( !(flags & wxODCB_PAINTING_CONTROL) )
+            bgFlags |= wxCONTROL_ISSUBMENU;
 
-        DrawFocusBackground(dc, rect, focusFlag );
+        PrepareBackground(dc, rect, bgFlags);
     }
-    //else: do nothing for the normal items
 }
 
 #endif // wxUSE_ODCOMBOBOX