1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 #ifndef INCLUDED_CANVAS_BITMAPCANVASBASE_HXX 23 #define INCLUDED_CANVAS_BITMAPCANVASBASE_HXX 24 25 #include <canvas/base/canvasbase.hxx> 26 #include <com/sun/star/rendering/XBitmapCanvas.hpp> 27 28 namespace canvas 29 { 30 /** Helper template to handle XBitmapCanvas method forwarding to 31 BitmapCanvasHelper 32 33 Use this helper to handle the XBitmapCanvas part of your 34 implementation. 35 36 @tpl Base 37 Base class to use, most probably one of the 38 WeakComponentImplHelperN templates with the appropriate 39 interfaces. At least XBitmapCanvas should be among them (why 40 else would you use this template, then?). Base class must have 41 an Base( const Mutex& ) constructor (like the 42 WeakComponentImplHelperN templates have). 43 44 @tpl CanvasHelper 45 Canvas helper implementation for the backend in question 46 47 @tpl Mutex 48 Lock strategy to use. Defaults to using the 49 OBaseMutex-provided lock. Every time one of the methods is 50 entered, an object of type Mutex is created with m_aMutex as 51 the sole parameter, and destroyed again when the method scope 52 is left. 53 54 @tpl UnambiguousBase 55 Optional unambiguous base class for XInterface of Base. It's 56 sometimes necessary to specify this parameter, e.g. if Base 57 derives from multiple UNO interface (were each provides its 58 own version of XInterface, making the conversion ambiguous) 59 60 @see CanvasBase for further contractual requirements towards 61 the CanvasHelper type, and some examples. 62 */ 63 template< class Base, 64 class CanvasHelper, 65 class Mutex=::osl::MutexGuard, 66 class UnambiguousBase=::com::sun::star::uno::XInterface > class BitmapCanvasBase : 67 public CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase > 68 { 69 public: 70 typedef CanvasBase< Base, CanvasHelper, Mutex, UnambiguousBase > BaseType; 71 72 // XBitmapCanvas copyRect(const::com::sun::star::uno::Reference<::com::sun::star::rendering::XBitmapCanvas> & sourceCanvas,const::com::sun::star::geometry::RealRectangle2D & sourceRect,const::com::sun::star::rendering::ViewState & sourceViewState,const::com::sun::star::rendering::RenderState & sourceRenderState,const::com::sun::star::geometry::RealRectangle2D & destRect,const::com::sun::star::rendering::ViewState & destViewState,const::com::sun::star::rendering::RenderState & destRenderState)73 virtual void SAL_CALL copyRect( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapCanvas >& sourceCanvas, 74 const ::com::sun::star::geometry::RealRectangle2D& sourceRect, 75 const ::com::sun::star::rendering::ViewState& sourceViewState, 76 const ::com::sun::star::rendering::RenderState& sourceRenderState, 77 const ::com::sun::star::geometry::RealRectangle2D& destRect, 78 const ::com::sun::star::rendering::ViewState& destViewState, 79 const ::com::sun::star::rendering::RenderState& destRenderState ) 80 { 81 tools::verifyArgs(sourceCanvas, sourceRect, sourceViewState, sourceRenderState, 82 destRect, destViewState, destRenderState, 83 BOOST_CURRENT_FUNCTION, 84 static_cast< typename BaseType::UnambiguousBaseType* >(this)); 85 86 typename BaseType::MutexType aGuard( BaseType::m_aMutex ); 87 88 BaseType::mbSurfaceDirty = true; 89 BaseType::maCanvasHelper.modifying(); 90 91 BaseType::maCanvasHelper.copyRect( this, 92 sourceCanvas, 93 sourceRect, 94 sourceViewState, 95 sourceRenderState, 96 destRect, 97 destViewState, 98 destRenderState ); 99 } 100 101 // XBitmap getSize()102 virtual ::com::sun::star::geometry::IntegerSize2D SAL_CALL getSize( ) 103 { 104 typename BaseType::MutexType aGuard( BaseType::m_aMutex ); 105 106 return BaseType::maCanvasHelper.getSize(); 107 } 108 hasAlpha()109 virtual ::sal_Bool SAL_CALL hasAlpha( ) 110 { 111 typename BaseType::MutexType aGuard( BaseType::m_aMutex ); 112 113 return BaseType::maCanvasHelper.hasAlpha(); 114 } 115 getScaledBitmap(const::com::sun::star::geometry::RealSize2D & newSize,sal_Bool beFast)116 virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > SAL_CALL getScaledBitmap( const ::com::sun::star::geometry::RealSize2D& newSize, 117 sal_Bool beFast ) 118 { 119 typename BaseType::MutexType aGuard( BaseType::m_aMutex ); 120 121 return BaseType::maCanvasHelper.getScaledBitmap( newSize, beFast ); 122 } 123 124 }; 125 } 126 127 #endif /* INCLUDED_CANVAS_BITMAPCANVASBASE_HXX */ 128 129 /* vim: set noet sw=4 ts=4: */ 130