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 #ifndef SDEXT_PRESENTER_SLIDE_PREVIEW_HXX 25 #define SDEXT_PRESENTER_SLIDE_PREVIEW_HXX 26 27 #include "PresenterController.hxx" 28 29 #include <boost/noncopyable.hpp> 30 #include <com/sun/star/awt/XBitmap.hpp> 31 #include <com/sun/star/awt/XDisplayBitmap.hpp> 32 #include <com/sun/star/awt/XPaintListener.hpp> 33 #include <com/sun/star/awt/XWindowListener.hpp> 34 #include <com/sun/star/drawing/XDrawPage.hpp> 35 #include <com/sun/star/drawing/XDrawView.hpp> 36 #include <com/sun/star/drawing/XSlideRenderer.hpp> 37 #include <com/sun/star/drawing/framework/XPane.hpp> 38 #include <com/sun/star/drawing/framework/XView.hpp> 39 #include <com/sun/star/lang/DisposedException.hpp> 40 #include <com/sun/star/uno/XComponentContext.hpp> 41 #include <cppuhelper/basemutex.hxx> 42 #include <cppuhelper/compbase4.hxx> 43 #include <rtl/ref.hxx> 44 45 namespace css = ::com::sun::star; 46 47 namespace sdext { namespace presenter { 48 49 namespace { 50 typedef ::cppu::WeakComponentImplHelper4 < 51 css::drawing::framework::XView, 52 css::drawing::XDrawView, 53 css::awt::XPaintListener, 54 css::awt::XWindowListener 55 > PresenterSlidePreviewInterfaceBase; 56 } 57 58 59 /** Static preview of a slide. Typically used for the preview of the next 60 slide. 61 This implementation shows a preview of the slide given to the 62 setCurrentSlide. For showing the next slide the PresenterViewFactory 63 uses a derived class that overloads the setCurrentSlide() method. 64 */ 65 class PresenterSlidePreview 66 : private ::boost::noncopyable, 67 private ::cppu::BaseMutex, 68 public PresenterSlidePreviewInterfaceBase 69 { 70 public: 71 PresenterSlidePreview ( 72 const css::uno::Reference<css::uno::XComponentContext>& rxContext, 73 const css::uno::Reference<css::drawing::framework::XResourceId>& rxViewId, 74 const css::uno::Reference<css::drawing::framework::XPane>& rxAnchorPane, 75 const ::rtl::Reference<PresenterController>& rpPresenterController); 76 virtual ~PresenterSlidePreview (void); 77 virtual void SAL_CALL disposing (void); 78 79 80 // XResourceId 81 82 virtual css::uno::Reference<css::drawing::framework::XResourceId> SAL_CALL getResourceId (void); 83 84 virtual sal_Bool SAL_CALL isAnchorOnly (void); 85 86 // XWindowListener 87 88 virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent); 89 90 virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent); 91 92 virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent); 93 94 virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent); 95 96 97 // XPaintListener 98 99 virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent); 100 101 102 // lang::XEventListener 103 virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent); 104 105 106 // XDrawView 107 108 virtual void SAL_CALL setCurrentPage ( 109 const css::uno::Reference<css::drawing::XDrawPage>& rxSlide); 110 111 virtual css::uno::Reference<css::drawing::XDrawPage> SAL_CALL getCurrentPage (void); 112 113 protected: 114 ::rtl::Reference<PresenterController> mpPresenterController; 115 116 private: 117 css::uno::Reference<css::drawing::framework::XPane> mxPane; 118 css::uno::Reference<css::drawing::framework::XResourceId> mxViewId; 119 css::uno::Reference<css::drawing::XSlideRenderer> mxPreviewRenderer; 120 121 /** This Image holds the preview of the current slide. After resize 122 requests the image may be empty. This results eventually in a call 123 to ProvideSlide() in order to created a preview in the correct new 124 size. 125 */ 126 css::uno::Reference<css::rendering::XBitmap> mxPreview; 127 128 /** The current slide for which a preview is displayed. This may or 129 may not be the same as the current slide of the PresenterView. 130 */ 131 css::uno::Reference<css::drawing::XDrawPage> mxCurrentSlide; 132 double mnSlideAspectRatio; 133 134 css::uno::Reference<css::awt::XWindow> mxWindow; 135 css::uno::Reference<css::rendering::XCanvas> mxCanvas; 136 137 /** Set the given slide as the current slide of the called PresenterSlidePreview 138 object. 139 */ 140 void SetSlide (const css::uno::Reference<css::drawing::XDrawPage>& rxPage); 141 142 /** Paint the preview of the current slide centered in the window of the 143 anchor pane. 144 */ 145 void Paint (const css::awt::Rectangle& rBoundingBox); 146 147 /** React to a resize of the anchor pane. 148 */ 149 void Resize (void); 150 151 /** This method throws a DisposedException when the object has already been 152 disposed. 153 */ 154 void ThrowIfDisposed (void); 155 }; 156 157 } } // end of namespace ::sd::presenter 158 159 #endif 160