1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #ifndef _VCLCANVAS_BACKBUFFER_HXX_ 29 #define _VCLCANVAS_BACKBUFFER_HXX_ 30 31 #include <vcl/virdev.hxx> 32 33 #include <canvas/vclwrapper.hxx> 34 #include "outdevprovider.hxx" 35 36 #include <boost/shared_ptr.hpp> 37 38 39 namespace vclcanvas 40 { 41 /// Background buffer abstraction 42 class BackBuffer : public OutDevProvider 43 { 44 public: 45 /** Create a backbuffer for given reference device 46 47 @param bMonochromeBuffer 48 When false, default depth of reference device is 49 chosen. When true, the buffer will be monochrome, i.e. one 50 bit deep. 51 */ 52 BackBuffer( const OutputDevice& rRefDevice, 53 bool bMonochromeBuffer=false ); 54 55 virtual OutputDevice& getOutDev(); 56 virtual const OutputDevice& getOutDev() const; 57 58 void setSize( const ::Size& rNewSize ); 59 60 private: 61 ::canvas::vcltools::VCLObject<VirtualDevice> maVDev; 62 }; 63 64 typedef ::boost::shared_ptr< BackBuffer > BackBufferSharedPtr; 65 } 66 67 #endif /* #ifndef _VCLCANVAS_BACKBUFFER_HXX_ */ 68