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 throw (css::uno::RuntimeException); 84 85 virtual sal_Bool SAL_CALL isAnchorOnly (void) 86 throw (com::sun::star::uno::RuntimeException); 87 88 // XWindowListener 89 90 virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent) 91 throw (css::uno::RuntimeException); 92 93 virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent) 94 throw (css::uno::RuntimeException); 95 96 virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent) 97 throw (css::uno::RuntimeException); 98 99 virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent) 100 throw (css::uno::RuntimeException); 101 102 103 // XPaintListener 104 105 virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent) 106 throw (css::uno::RuntimeException); 107 108 109 // lang::XEventListener 110 virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent) 111 throw (css::uno::RuntimeException); 112 113 114 // XDrawView 115 116 virtual void SAL_CALL setCurrentPage ( 117 const css::uno::Reference<css::drawing::XDrawPage>& rxSlide) 118 throw (css::uno::RuntimeException); 119 120 virtual css::uno::Reference<css::drawing::XDrawPage> SAL_CALL getCurrentPage (void) 121 throw (css::uno::RuntimeException); 122 123 protected: 124 ::rtl::Reference<PresenterController> mpPresenterController; 125 126 private: 127 css::uno::Reference<css::drawing::framework::XPane> mxPane; 128 css::uno::Reference<css::drawing::framework::XResourceId> mxViewId; 129 css::uno::Reference<css::drawing::XSlideRenderer> mxPreviewRenderer; 130 131 /** This Image holds the preview of the current slide. After resize 132 requests the image may be empty. This results eventually in a call 133 to ProvideSlide() in order to created a preview in the correct new 134 size. 135 */ 136 css::uno::Reference<css::rendering::XBitmap> mxPreview; 137 138 /** The current slide for which a preview is displayed. This may or 139 may not be the same as the current slide of the PresenterView. 140 */ 141 css::uno::Reference<css::drawing::XDrawPage> mxCurrentSlide; 142 double mnSlideAspectRatio; 143 144 css::uno::Reference<css::awt::XWindow> mxWindow; 145 css::uno::Reference<css::rendering::XCanvas> mxCanvas; 146 147 /** Set the given slide as the current slide of the called PresenterSlidePreview 148 object. 149 */ 150 void SetSlide (const css::uno::Reference<css::drawing::XDrawPage>& rxPage); 151 152 /** Paint the preview of the current slide centered in the window of the 153 anchor pane. 154 */ 155 void Paint (const css::awt::Rectangle& rBoundingBox); 156 157 /** React to a resize of the anchor pane. 158 */ 159 void Resize (void); 160 161 /** This method throws a DisposedException when the object has already been 162 disposed. 163 */ 164 void ThrowIfDisposed (void) throw (css::lang::DisposedException); 165 }; 166 167 } } // end of namespace ::sd::presenter 168 169 #endif 170