1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX 29*cdf0e10cSrcweir #define _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include <com/sun/star/uno/Reference.hxx> 32*cdf0e10cSrcweir #include <com/sun/star/rendering/XCanvas.hpp> 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir #include <cppcanvas/canvas.hxx> 35*cdf0e10cSrcweir #include <boost/utility.hpp> 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir #include "action.hxx" 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir namespace basegfx { class B2DHomMatrix; } 40*cdf0e10cSrcweir 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir /* Definition of internal::CachedPrimitiveBase class */ 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir namespace cppcanvas 45*cdf0e10cSrcweir { 46*cdf0e10cSrcweir namespace internal 47*cdf0e10cSrcweir { 48*cdf0e10cSrcweir /** Base class providing cached re-rendering, if XCanvas 49*cdf0e10cSrcweir returns XCachedPrimitive 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir Derive from this class and implement private render() 52*cdf0e10cSrcweir method to perform the actual primitive rendering. Return 53*cdf0e10cSrcweir cached primitive into given reference. Next time this 54*cdf0e10cSrcweir class' public render() method gets called, the cached 55*cdf0e10cSrcweir representation is taken. 56*cdf0e10cSrcweir */ 57*cdf0e10cSrcweir class CachedPrimitiveBase : public Action, 58*cdf0e10cSrcweir private ::boost::noncopyable 59*cdf0e10cSrcweir { 60*cdf0e10cSrcweir public: 61*cdf0e10cSrcweir /** Constructor 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir @param rCanvas 64*cdf0e10cSrcweir Canvas on which this primitive is to appear 65*cdf0e10cSrcweir 66*cdf0e10cSrcweir @param bOnlyRedrawWithSameTransform 67*cdf0e10cSrcweir When true, this class only reuses the cached 68*cdf0e10cSrcweir primitive, if the overall transformation stays the 69*cdf0e10cSrcweir same. Otherwise, repaints are always performed via the 70*cdf0e10cSrcweir cached primitive. 71*cdf0e10cSrcweir */ 72*cdf0e10cSrcweir CachedPrimitiveBase( const CanvasSharedPtr& rCanvas, 73*cdf0e10cSrcweir bool bOnlyRedrawWithSameTransform ); 74*cdf0e10cSrcweir virtual ~CachedPrimitiveBase() {} 75*cdf0e10cSrcweir 76*cdf0e10cSrcweir virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const; 77*cdf0e10cSrcweir 78*cdf0e10cSrcweir protected: 79*cdf0e10cSrcweir using Action::render; 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir private: 82*cdf0e10cSrcweir virtual bool render( ::com::sun::star::uno::Reference< 83*cdf0e10cSrcweir ::com::sun::star::rendering::XCachedPrimitive >& rCachedPrimitive, 84*cdf0e10cSrcweir const ::basegfx::B2DHomMatrix& rTransformation ) const = 0; 85*cdf0e10cSrcweir 86*cdf0e10cSrcweir CanvasSharedPtr mpCanvas; 87*cdf0e10cSrcweir mutable ::com::sun::star::uno::Reference< 88*cdf0e10cSrcweir ::com::sun::star::rendering::XCachedPrimitive > mxCachedPrimitive; 89*cdf0e10cSrcweir mutable ::basegfx::B2DHomMatrix maLastTransformation; 90*cdf0e10cSrcweir const bool mbOnlyRedrawWithSameTransform; 91*cdf0e10cSrcweir }; 92*cdf0e10cSrcweir } 93*cdf0e10cSrcweir } 94*cdf0e10cSrcweir 95*cdf0e10cSrcweir #endif /*_CPPCANVAS_CACHEDPRIMITIVEBASE_HXX */ 96