da712b51d4
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54917 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/overlay.h
|
|
// Purpose: wxOverlay class
|
|
// Author: Stefan Csomor
|
|
// Modified by:
|
|
// Created: 2006-10-20
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) wxWidgets team
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_OVERLAY_H_
|
|
#define _WX_OVERLAY_H_
|
|
|
|
#include "wx/defs.h"
|
|
|
|
#if defined(__WXMAC__) && wxOSX_USE_CARBON
|
|
#define wxHAS_NATIVE_OVERLAY 1
|
|
#elif defined(__WXDFB__)
|
|
#define wxHAS_NATIVE_OVERLAY 1
|
|
#else
|
|
// don't define wxHAS_NATIVE_OVERLAY
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// creates an overlay over an existing window, allowing for manipulations like
|
|
// rubberbanding etc. This API is not stable yet, not to be used outside wx
|
|
// internal code
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxOverlayImpl;
|
|
class WXDLLIMPEXP_FWD_CORE wxDC;
|
|
|
|
class WXDLLIMPEXP_CORE wxOverlay
|
|
{
|
|
public:
|
|
wxOverlay();
|
|
~wxOverlay();
|
|
|
|
// clears the overlay without restoring the former state
|
|
// to be done eg when the window content has been changed and repainted
|
|
void Reset();
|
|
|
|
// returns (port-specific) implementation of the overlay
|
|
wxOverlayImpl *GetImpl() { return m_impl; }
|
|
|
|
private:
|
|
friend class WXDLLIMPEXP_FWD_CORE wxDCOverlay;
|
|
|
|
// 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);
|
|
|
|
wxOverlayImpl* m_impl;
|
|
|
|
bool m_inDrawing;
|
|
|
|
|
|
DECLARE_NO_COPY_CLASS(wxOverlay)
|
|
};
|
|
|
|
|
|
class WXDLLIMPEXP_CORE wxDCOverlay
|
|
{
|
|
public:
|
|
// connects this overlay to the corresponding drawing dc, if the overlay is
|
|
// not initialized yet this call will do so
|
|
wxDCOverlay(wxOverlay &overlay, wxDC *dc, int x , int y , int width , int height);
|
|
|
|
// convenience wrapper that behaves the same using the entire area of the dc
|
|
wxDCOverlay(wxOverlay &overlay, wxDC *dc);
|
|
|
|
// removes the connection between the overlay and the dc
|
|
virtual ~wxDCOverlay();
|
|
|
|
// clears the layer, restoring the state at the last init
|
|
void Clear();
|
|
|
|
private:
|
|
void Init(wxDC *dc, int x , int y , int width , int height);
|
|
|
|
wxOverlay& m_overlay;
|
|
|
|
wxDC* m_dc;
|
|
|
|
|
|
DECLARE_NO_COPY_CLASS(wxDCOverlay)
|
|
};
|
|
|
|
#endif // _WX_OVERLAY_H_
|