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 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_canvas.hxx" 26 27 #include <canvas/debug.hxx> 28 #include <canvas/verbosetrace.hxx> 29 #include <canvas/canvastools.hxx> 30 #include <tools/diagnose_ex.h> 31 32 #include <com/sun/star/registry/XRegistryKey.hpp> 33 #include <com/sun/star/lang/XSingleServiceFactory.hpp> 34 #include <com/sun/star/lang/NoSupportException.hpp> 35 #include <com/sun/star/uno/XComponentContext.hpp> 36 37 #include <vcl/canvastools.hxx> 38 #include <vcl/outdev.hxx> 39 #include <vcl/window.hxx> 40 #include <vcl/bitmapex.hxx> 41 42 #include <basegfx/tools/canvastools.hxx> 43 44 #include <algorithm> 45 46 #include "canvas.hxx" 47 #include "windowoutdevholder.hxx" 48 49 50 using namespace ::com::sun::star; 51 52 namespace vclcanvas 53 { 54 namespace 55 { 56 class OutDevHolder : public OutDevProvider, 57 private ::boost::noncopyable 58 { 59 public: OutDevHolder(OutputDevice & rOutDev)60 explicit OutDevHolder( OutputDevice& rOutDev ) : 61 mrOutDev(rOutDev) 62 {} 63 64 private: getOutDev()65 virtual OutputDevice& getOutDev() { return mrOutDev; } getOutDev() const66 virtual const OutputDevice& getOutDev() const { return mrOutDev; } 67 68 // TODO(Q2): Lifetime issue. This _only_ works reliably, 69 // if disposing the Canvas correctly disposes all 70 // entities which hold this pointer. 71 OutputDevice& mrOutDev; 72 }; 73 } 74 Canvas(const uno::Sequence<uno::Any> & aArguments,const uno::Reference<uno::XComponentContext> & rxContext)75 Canvas::Canvas( const uno::Sequence< uno::Any >& aArguments, 76 const uno::Reference< uno::XComponentContext >& rxContext ) : 77 maArguments(aArguments), 78 mxComponentContext( rxContext ) 79 { 80 } 81 initialize()82 void Canvas::initialize() 83 { 84 // #i64742# Only perform initialization when not in probe mode 85 if( maArguments.getLength() == 0 ) 86 return; 87 88 /* maArguments: 89 0: ptr to creating instance (Window or VirtualDevice) 90 1: SystemEnvData as a streamed Any (or empty for VirtualDevice) 91 2: current bounds of creating instance 92 3: bool, denoting always on top state for Window (always false for VirtualDevice) 93 4: XWindow for creating Window (or empty for VirtualDevice) 94 5: SystemGraphicsData as a streamed Any 95 */ 96 tools::LocalGuard aGuard; 97 98 VERBOSE_TRACE( "VCLCanvas::initialize called" ); 99 100 ENSURE_ARG_OR_THROW( maArguments.getLength() >= 6 && 101 maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER, 102 "Canvas::initialize: wrong number of arguments, or wrong types" ); 103 104 sal_Int64 nPtr = 0; 105 maArguments[0] >>= nPtr; 106 107 OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr); 108 if( !pOutDev ) 109 throw lang::NoSupportException( 110 ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( 111 "Passed OutDev invalid!")), 112 NULL); 113 114 OutDevProviderSharedPtr pOutdevProvider( new OutDevHolder(*pOutDev) ); 115 116 // setup helper 117 maDeviceHelper.init( pOutdevProvider ); 118 maCanvasHelper.init( *this, 119 pOutdevProvider, 120 true, // OutDev state preservation 121 false ); // no alpha on surface 122 123 maArguments.realloc(0); 124 } 125 ~Canvas()126 Canvas::~Canvas() 127 { 128 OSL_TRACE( "Canvas destroyed" ); 129 } 130 disposing()131 void SAL_CALL Canvas::disposing() 132 { 133 tools::LocalGuard aGuard; 134 135 mxComponentContext.clear(); 136 137 // forward to parent 138 CanvasBaseT::disposing(); 139 } 140 getServiceName()141 ::rtl::OUString SAL_CALL Canvas::getServiceName( ) throw (::com::sun::star::uno::RuntimeException) 142 { 143 return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( CANVAS_SERVICE_NAME ) ); 144 } 145 repaint(const GraphicObjectSharedPtr & rGrf,const rendering::ViewState & viewState,const rendering::RenderState & renderState,const::Point & rPt,const::Size & rSz,const GraphicAttr & rAttr) const146 bool Canvas::repaint( const GraphicObjectSharedPtr& rGrf, 147 const rendering::ViewState& viewState, 148 const rendering::RenderState& renderState, 149 const ::Point& rPt, 150 const ::Size& rSz, 151 const GraphicAttr& rAttr ) const 152 { 153 tools::LocalGuard aGuard; 154 155 return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr ); 156 } 157 } 158