+ if ( m_peer )
+ {
+ // deleting a window while it is shown invalidates the region occupied by border or
+ // focus
+ int outerBorder = MacGetLeftBorderSize() ;
+ if ( m_peer->NeedsFocusRect() && m_peer->HasFocus() )
+ outerBorder += 4 ;
+
+ if ( IsShown() && ( outerBorder > 0 ) )
+ {
+ // as the borders are drawn on the parent we have to properly invalidate all these areas
+ RgnHandle updateInner = NewRgn() , updateOuter = NewRgn() , updateTotal = NewRgn() ;
+
+ Rect rect ;
+
+ m_peer->GetRect( &rect ) ;
+ RectRgn( updateInner , &rect ) ;
+ InsetRect( &rect , -outerBorder , -outerBorder ) ;
+ RectRgn( updateOuter , &rect ) ;
+ DiffRgn( updateOuter , updateInner ,updateOuter ) ;
+ wxPoint parent(0,0);
+ GetParent()->MacWindowToRootWindow( &parent.x , &parent.y ) ;
+ parent -= GetParent()->GetClientAreaOrigin() ;
+ OffsetRgn( updateOuter , -parent.x , -parent.y ) ;
+ CopyRgn( updateOuter , updateTotal ) ;
+
+ GetParent()->m_peer->SetNeedsDisplay( true , updateTotal ) ;
+ DisposeRgn(updateOuter) ;
+ DisposeRgn(updateInner) ;
+ DisposeRgn(updateTotal) ;
+ }
+ }
+