dcmemory.h

wxWidgets 是一个跨平台的 GUI 框架。它给开发人员提供了统一的接口

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/gtk1/dcmemory.h
// Purpose:
// Author:      Robert Roebling
// RCS-ID:      $Id: dcmemory.h,v 1.22 2006/10/30 19:41:00 VZ Exp $
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef __GTKDCMEMORYH__
#define __GTKDCMEMORYH__

#include "wx/defs.h"
#include "wx/dcclient.h"

//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------

class WXDLLIMPEXP_CORE wxMemoryDC;

//-----------------------------------------------------------------------------
// wxMemoryDC
//-----------------------------------------------------------------------------

class WXDLLIMPEXP_CORE wxMemoryDC : public wxWindowDC, public wxMemoryDCBase
{
public:
    wxMemoryDC() { Init(); }
    wxMemoryDC(wxBitmap& bitmap) { Init(); SelectObject(bitmap); }
    wxMemoryDC( wxDC *dc ); // Create compatible DC
    virtual ~wxMemoryDC();
    void DoGetSize( int *width, int *height ) const;

    // these get reimplemented for mono-bitmaps to behave
    // more like their Win32 couterparts. They now interpret
    // wxWHITE, wxWHITE_BRUSH and wxWHITE_PEN as drawing 0
    // and everything else as drawing 1.
    virtual void SetPen( const wxPen &pen );
    virtual void SetBrush( const wxBrush &brush );
    virtual void SetBackground( const wxBrush &brush );
    virtual void SetTextForeground( const wxColour &col );
    virtual void SetTextBackground( const wxColour &col );

    // implementation
    wxBitmap  m_selected;

protected:
    virtual void DoSelect(const wxBitmap& bitmap);

private:
    void Init();

    DECLARE_DYNAMIC_CLASS(wxMemoryDC)
};

#endif
    // __GTKDCMEMORYH__