X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f984d2afda3c161bc13b8e7927b86b6b3cea6428..6cef0db28018fd2644ee4e38af715872e5242459:/src/mac/carbon/overlay.cpp

diff --git a/src/mac/carbon/overlay.cpp b/src/mac/carbon/overlay.cpp
index 0a1fb54073..7031ebf596 100644
--- a/src/mac/carbon/overlay.cpp
+++ b/src/mac/carbon/overlay.cpp
@@ -105,7 +105,7 @@ OSStatus wxOverlayImpl::CreateOverlayWindow()
     return err;
 }
 
-void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height )
+void wxOverlayImpl::Init( wxDC* dc, int x , int y , int width , int height )
 {
     wxASSERT_MSG( !IsOk() , _("You cannot Init an overlay twice") );
 
@@ -132,20 +132,28 @@ void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height
     wxASSERT_MSG(  err == noErr , _("Couldn't init the context on the overlay window") );
 }
 
-void wxOverlayImpl::BeginDrawing( wxWindowDC* dc)
+void wxOverlayImpl::BeginDrawing( wxDC* dc)
 {
-    dc->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
-    wxSize size = dc->GetSize() ;
-    dc->SetClippingRegion( 0 , 0 , size.x , size.y ) ;
+    wxDCImpl *impl = dc->GetImpl();
+    wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl);
+    if (win_impl)
+    {
+        win_impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
+        dc->SetClippingRegion( m_x , m_y , m_width , m_height ) ;
+    }
 }
 
-void wxOverlayImpl::EndDrawing( wxWindowDC* dc)
+void wxOverlayImpl::EndDrawing( wxDC* dc)
 {
-    dc->SetGraphicsContext(NULL);
-    CGContextSynchronize( m_overlayContext );
+    wxDCImpl *impl = dc->GetImpl();
+    wxGCDCImpl *win_impl = wxDynamicCast(impl,wxGCDCImpl);
+    if (win_impl)
+        win_impl->SetGraphicsContext(NULL);
+        
+    CGContextFlush( m_overlayContext );
 }
 
-void wxOverlayImpl::Clear(wxWindowDC* dc)
+void wxOverlayImpl::Clear(wxDC* WXUNUSED(dc))
 {
     wxASSERT_MSG( IsOk() , _("You cannot Clear an overlay that is not inited") );
     CGRect box  = CGRectMake( m_x - 1, m_y - 1 , m_width + 2 , m_height + 2 );