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 _CPPCANVAS_BITMAPCANVAS_HXX 29 #define _CPPCANVAS_BITMAPCANVAS_HXX 30 31 #include <sal/types.h> 32 #include <osl/diagnose.h> 33 34 #include <boost/shared_ptr.hpp> 35 #include <basegfx/vector/b2isize.hxx> 36 #include <cppcanvas/canvas.hxx> 37 38 39 /* Definition of BitmapCanvas */ 40 41 namespace cppcanvas 42 { 43 class BitmapCanvas; 44 45 // forward declaration, since cloneBitmapCanvas() also references BitmapCanvas 46 typedef ::boost::shared_ptr< BitmapCanvas > BitmapCanvasSharedPtr; 47 48 /** BitmapCanvas interface 49 */ 50 class BitmapCanvas : public virtual Canvas 51 { 52 public: 53 virtual ::basegfx::B2ISize getSize() const = 0; 54 55 // shared_ptr does not allow for covariant return types 56 BitmapCanvasSharedPtr cloneBitmapCanvas() const 57 { 58 BitmapCanvasSharedPtr p( ::boost::dynamic_pointer_cast< BitmapCanvas >(this->clone()) ); 59 OSL_ENSURE(p.get(), "BitmapCanvas::cloneBitmapCanvas(): dynamic cast failed"); 60 return p; 61 } 62 }; 63 64 } 65 66 #endif /* _CPPCANVAS_BITMAPCANVAS_HXX */ 67