77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/dcmemory.h
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// Purpose: wxMemoryDC base header
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// Author: Julian Smart
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// Modified by:
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// Created:
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// Copyright: (c) Julian Smart
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// RCS-ID: $Id: dcmemory.h 43843 2006-12-07 05:44:44Z PC $
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// Licence: wxWindows Licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DCMEMORY_H_BASE_
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#define _WX_DCMEMORY_H_BASE_
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#include "wx/bitmap.h"
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// NOTE: different native implementations of wxMemoryDC will derive from
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// different wxDC classes (wxPaintDC, wxWindowDC, etc), so that
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// we cannot derive wxMemoryDCBase from wxDC and then use it as the
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// only base class for native impl of wxMemoryDC...
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class WXDLLEXPORT wxMemoryDCBase
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{
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public:
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wxMemoryDCBase() { }
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// avoid warnings about having virtual functions but non virtual dtor
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virtual ~wxMemoryDCBase() { }
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// select the given bitmap to draw on it
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void SelectObject(wxBitmap& bmp)
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{
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// make sure that the given wxBitmap is not sharing its data with other
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// wxBitmap instances as its contents will be modified by any drawing
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// operation done on this DC
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if (bmp.IsOk())
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bmp.UnShare();
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DoSelect(bmp);
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}
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// select the given bitmap for read-only
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virtual void SelectObjectAsSource(const wxBitmap& bmp)
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{
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DoSelect(bmp);
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}
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protected:
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virtual void DoSelect(const wxBitmap& bmp) = 0;
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};
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#if defined(__WXPALMOS__)
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#include "wx/palmos/dcmemory.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/dcmemory.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/dcmemory.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/dcmemory.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk1/dcmemory.h"
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#elif defined(__WXX11__)
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#include "wx/x11/dcmemory.h"
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#elif defined(__WXMGL__)
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#include "wx/mgl/dcmemory.h"
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#elif defined(__WXDFB__)
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#include "wx/dfb/dcmemory.h"
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#elif defined(__WXMAC__)
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#include "wx/mac/dcmemory.h"
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#elif defined(__WXCOCOA__)
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#include "wx/cocoa/dcmemory.h"
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#elif defined(__WXPM__)
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#include "wx/os2/dcmemory.h"
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#endif
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#endif
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// _WX_DCMEMORY_H_BASE_
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