Performance optimization

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

diff --git a/src/mac/carbon/overlay.cpp b/src/mac/carbon/overlay.cpp
index eda88f97390e39919a512f69814be04500041d79..1a03d6e1a8d548b50ff2af6695cffed891a76222 100644 (file)
--- a/src/mac/carbon/overlay.cpp
+++ b/src/mac/carbon/overlay.cpp
@@ -95,17 +95,17 @@ OSStatus wxOverlayImpl::CreateOverlayWindow()
         CGRect cgbounds ;
         cgbounds = CGDisplayBounds(CGMainDisplayID());
         Rect bounds;
-        bounds.top = cgbounds.origin.y;
-        bounds.left = cgbounds.origin.x;
-        bounds.bottom = bounds.top + cgbounds.size.height;
-        bounds.right = bounds.left  + cgbounds.size.width;
+        bounds.top = (short)cgbounds.origin.y;
+        bounds.left = (short)cgbounds.origin.x;
+        bounds.bottom = (short)(bounds.top + cgbounds.size.height);
+        bounds.right = (short)(bounds.left  + cgbounds.size.width);
         err  = CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, &m_overlayWindow );
     }
     ShowWindow(m_overlayWindow);
     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") );
 
@@ -115,7 +115,7 @@ void wxOverlayImpl::Init( wxWindowDC* dc, int x , int y , int width , int height
     if ( dc->IsKindOf( CLASSINFO( wxClientDC ) ))
     {
         wxPoint origin = m_window->GetClientAreaOrigin();
-        m_x += origin.x; 
+        m_x += origin.x;
         m_y += origin.y;
     }
     m_width = width ;
@@ -132,20 +132,29 @@ 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();
+    wxWindowDCImpl *win_impl = wxDynamicCast(impl,wxWindowDCImpl);
+    if (win_impl)
+    {
+        win_impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( m_overlayContext ) );
+        wxSize size = dc->GetSize() ;
+        dc->SetClippingRegion( 0 , 0 , size.x , size.y ) ;
+    }
 }
 
-void wxOverlayImpl::EndDrawing( wxWindowDC* dc)
+void wxOverlayImpl::EndDrawing( wxDC* dc)
 {
-    dc->SetGraphicsContext(NULL);
-    CGContextSynchronize( m_overlayContext );
+    wxDCImpl *impl = dc->GetImpl();
+    wxWindowDCImpl *win_impl = wxDynamicCast(impl,wxWindowDCImpl);
+    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 );