otherwise we always fall back to blitting, even if we can provide better results

[wxWidgets.git] / src / mac / carbon / uma.cpp

diff --git a/src/mac/carbon/uma.cpp b/src/mac/carbon/uma.cpp
index 1c3108308580f8a2c7892b6915276121f400482d..5eb2fbc5ba94663ba1b5092c633d5a0b27a9bedb 100644 (file)
--- a/src/mac/carbon/uma.cpp
+++ b/src/mac/carbon/uma.cpp
@@ -33,6 +33,9 @@
 #endif
 #include "wx/mac/uma.h"
 
+#if TARGET_API_MAC_OSX
+#include "wx/toplevel.h"
+#endif
 
 // since we have decided that we only support 8.6 upwards we are
 // checking for these minimum requirements in the startup code of
@@ -790,18 +793,18 @@ OSStatus UMAPutScrap( Size size , OSType type , void *data )
 
 Rect* UMAGetControlBoundsInWindowCoords(ControlRef theControl, Rect *bounds)
 {
-    wxWindow* win = wxFindControlFromMacControl( theControl ) ;
-    
     GetControlBounds( theControl , bounds ) ;
 #if TARGET_API_MAC_OSX
     WindowRef tlwref = GetControlOwner( theControl ) ;
-    wxTopLevelWindowMac* tlwwx = wxFindWinFromMacWindow( tlwref ) ;
-    ControlRef rootControl = tlwwx->GetPeer()->GetControlRef() ;
-
-    HIPoint hiPoint = CGPointMake(  0 , 0 ) ;
 
-    HIViewConvertPoint( &hiPoint , HIViewGetSuperview(theControl) , rootControl  ) ;
-    OffsetRect( bounds , hiPoint.x , hiPoint.y ) ;
+    wxTopLevelWindowMac* tlwwx = wxFindWinFromMacWindow( tlwref ) ;
+    if ( tlwwx != NULL && tlwwx->MacUsesCompositing() )
+    {
+        ControlRef rootControl = tlwwx->GetPeer()->GetControlRef() ;
+        HIPoint hiPoint = CGPointMake(  0 , 0 ) ;
+        HIViewConvertPoint( &hiPoint , HIViewGetSuperview(theControl) , rootControl  ) ;
+        OffsetRect( bounds , (short) hiPoint.x , (short) hiPoint.y ) ;
+    }
 #endif
     return bounds ;
 }