1*b1cdbd2cSJim Jagielski /************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski 23*b1cdbd2cSJim Jagielski 24*b1cdbd2cSJim Jagielski #ifndef _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX 25*b1cdbd2cSJim Jagielski #define _CPPCANVAS_CACHEDPRIMITIVEBASE_HXX 26*b1cdbd2cSJim Jagielski 27*b1cdbd2cSJim Jagielski #include <com/sun/star/uno/Reference.hxx> 28*b1cdbd2cSJim Jagielski #include <com/sun/star/rendering/XCanvas.hpp> 29*b1cdbd2cSJim Jagielski 30*b1cdbd2cSJim Jagielski #include <cppcanvas/canvas.hxx> 31*b1cdbd2cSJim Jagielski #include <boost/utility.hpp> 32*b1cdbd2cSJim Jagielski 33*b1cdbd2cSJim Jagielski #include "action.hxx" 34*b1cdbd2cSJim Jagielski 35*b1cdbd2cSJim Jagielski namespace basegfx { class B2DHomMatrix; } 36*b1cdbd2cSJim Jagielski 37*b1cdbd2cSJim Jagielski 38*b1cdbd2cSJim Jagielski /* Definition of internal::CachedPrimitiveBase class */ 39*b1cdbd2cSJim Jagielski 40*b1cdbd2cSJim Jagielski namespace cppcanvas 41*b1cdbd2cSJim Jagielski { 42*b1cdbd2cSJim Jagielski namespace internal 43*b1cdbd2cSJim Jagielski { 44*b1cdbd2cSJim Jagielski /** Base class providing cached re-rendering, if XCanvas 45*b1cdbd2cSJim Jagielski returns XCachedPrimitive 46*b1cdbd2cSJim Jagielski 47*b1cdbd2cSJim Jagielski Derive from this class and implement private render() 48*b1cdbd2cSJim Jagielski method to perform the actual primitive rendering. Return 49*b1cdbd2cSJim Jagielski cached primitive into given reference. Next time this 50*b1cdbd2cSJim Jagielski class' public render() method gets called, the cached 51*b1cdbd2cSJim Jagielski representation is taken. 52*b1cdbd2cSJim Jagielski */ 53*b1cdbd2cSJim Jagielski class CachedPrimitiveBase : public Action, 54*b1cdbd2cSJim Jagielski private ::boost::noncopyable 55*b1cdbd2cSJim Jagielski { 56*b1cdbd2cSJim Jagielski public: 57*b1cdbd2cSJim Jagielski /** Constructor 58*b1cdbd2cSJim Jagielski 59*b1cdbd2cSJim Jagielski @param rCanvas 60*b1cdbd2cSJim Jagielski Canvas on which this primitive is to appear 61*b1cdbd2cSJim Jagielski 62*b1cdbd2cSJim Jagielski @param bOnlyRedrawWithSameTransform 63*b1cdbd2cSJim Jagielski When true, this class only reuses the cached 64*b1cdbd2cSJim Jagielski primitive, if the overall transformation stays the 65*b1cdbd2cSJim Jagielski same. Otherwise, repaints are always performed via the 66*b1cdbd2cSJim Jagielski cached primitive. 67*b1cdbd2cSJim Jagielski */ 68*b1cdbd2cSJim Jagielski CachedPrimitiveBase( const CanvasSharedPtr& rCanvas, 69*b1cdbd2cSJim Jagielski bool bOnlyRedrawWithSameTransform ); ~CachedPrimitiveBase()70*b1cdbd2cSJim Jagielski virtual ~CachedPrimitiveBase() {} 71*b1cdbd2cSJim Jagielski 72*b1cdbd2cSJim Jagielski virtual bool render( const ::basegfx::B2DHomMatrix& rTransformation ) const; 73*b1cdbd2cSJim Jagielski 74*b1cdbd2cSJim Jagielski protected: 75*b1cdbd2cSJim Jagielski using Action::render; 76*b1cdbd2cSJim Jagielski 77*b1cdbd2cSJim Jagielski private: 78*b1cdbd2cSJim Jagielski virtual bool render( ::com::sun::star::uno::Reference< 79*b1cdbd2cSJim Jagielski ::com::sun::star::rendering::XCachedPrimitive >& rCachedPrimitive, 80*b1cdbd2cSJim Jagielski const ::basegfx::B2DHomMatrix& rTransformation ) const = 0; 81*b1cdbd2cSJim Jagielski 82*b1cdbd2cSJim Jagielski CanvasSharedPtr mpCanvas; 83*b1cdbd2cSJim Jagielski mutable ::com::sun::star::uno::Reference< 84*b1cdbd2cSJim Jagielski ::com::sun::star::rendering::XCachedPrimitive > mxCachedPrimitive; 85*b1cdbd2cSJim Jagielski mutable ::basegfx::B2DHomMatrix maLastTransformation; 86*b1cdbd2cSJim Jagielski const bool mbOnlyRedrawWithSameTransform; 87*b1cdbd2cSJim Jagielski }; 88*b1cdbd2cSJim Jagielski } 89*b1cdbd2cSJim Jagielski } 90*b1cdbd2cSJim Jagielski 91*b1cdbd2cSJim Jagielski #endif /*_CPPCANVAS_CACHEDPRIMITIVEBASE_HXX */ 92