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1/////////////////////////////////////////////////////////////////////////////
2// Name: wx/mac/carbon/private/overlay.h
3// Purpose: wxOverlayImpl declaration
4// Author: Stefan Csomor
5// Modified by:
6// Created: 2006-10-20
7// RCS-ID: $Id$
8// Copyright: (c) wxWidgets team
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_MAC_CARBON_PRIVATE_OVERLAY_H_
13#define _WX_MAC_CARBON_PRIVATE_OVERLAY_H_
14
15#include "wx/mac/private.h"
16#include "wx/toplevel.h"
17#include "wx/graphics.h"
18
19class wxOverlayImpl
20{
21public:
22 wxOverlayImpl() ;
23 ~wxOverlayImpl() ;
24
25
26 // clears the overlay without restoring the former state
27 // to be done eg when the window content has been changed and repainted
28 void Reset();
29
30 // returns true if it has been setup
31 bool IsOk();
32
33 void Init( wxWindowDC* dc, int x , int y , int width , int height );
34
35 void BeginDrawing( wxWindowDC* dc);
36
37 void EndDrawing( wxWindowDC* dc);
38
39 void Clear( wxWindowDC* dc);
40
41private:
42 OSStatus CreateOverlayWindow();
43
44 void MacGetBounds( Rect *bounds );
45
46 WindowRef m_overlayWindow;
47 WindowRef m_overlayParentWindow;
48 CGContextRef m_overlayContext ;
49 // we store the window in case we would have to issue a Refresh()
50 wxWindow* m_window ;
51
52 int m_x ;
53 int m_y ;
54 int m_width ;
55 int m_height ;
56} ;
57
58#endif // _WX_MAC_CARBON_PRIVATE_OVERLAY_H_