wxWidgets/include/wx/osx/cocoa/private/overlay.h

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/////////////////////////////////////////////////////////////////////////////
// Name: wx/osx/cocoa/private/overlay.h
// Purpose: wxOverlayImpl declaration
// Author: Stefan Csomor
// Modified by:
// Created: 2006-10-20
// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_OSX_COCOA_PRIVATE_OVERLAY_H_
#define _WX_OSX_COCOA_PRIVATE_OVERLAY_H_
#include "wx/osx/private.h"
#include "wx/toplevel.h"
#include "wx/graphics.h"
class wxOverlayImpl
{
public:
wxOverlayImpl() ;
~wxOverlayImpl() ;
// clears the overlay without restoring the former state
// to be done eg when the window content has been changed and repainted
void Reset();
// returns true if it has been setup
bool IsOk();
void Init( wxDC* dc, int x , int y , int width , int height );
void BeginDrawing( wxDC* dc);
void EndDrawing( wxDC* dc);
void Clear( wxDC* dc);
private:
void CreateOverlayWindow();
WXWindow m_overlayWindow;
WXWindow m_overlayParentWindow;
CGContextRef m_overlayContext ;
// we store the window in case we would have to issue a Refresh()
wxWindow* m_window ;
int m_x ;
int m_y ;
int m_width ;
int m_height ;
} ;
#endif // _WX_MAC_CARBON_PRIVATE_OVERLAY_H_