slideshow/source/engine/shapes/mediashape.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <com/sun/star/drawing/XShape.hpp>
  22 #include <o3tl/safeint.hxx>
  23 #include <osl/diagnose.h>
  24
  25 #include "mediashape.hxx"
  26 #include "viewmediashape.hxx"
  27 #include "externalshapebase.hxx"
  28 #include <slideshowcontext.hxx>
  29 #include <shape.hxx>
  30 #include <tools.hxx>
  31
  32 #include <algorithm>
  33
  34
  35 using namespace ::com::sun::star;
  36
  37
  38 namespace slideshow::internal
  39 {
  40         namespace {
  41
  42         /** Represents a media shape.
  43
  44             This implementation offers support for media shapes.
  45             Such shapes need special treatment.
  46          */
  47         class MediaShape : public ExternalShapeBase
  48         {
  49         public:
  50             /** Create a shape for the given XShape for a media object
  51
  52                 @param xShape
  53                 The XShape to represent.
  54
  55                 @param nPrio
  56                 Externally-determined shape priority (used e.g. for
  57                 paint ordering). This number _must be_ unique!
  58              */
  59             MediaShape( const css::uno::Reference< css::drawing::XShape >& xShape,
  60                         double                                      nPrio,
  61                         const SlideShowContext&                     rContext ); // throw ShapeLoadFailedException;
  62
  63         private:
  64
  65             // View layer methods
  66
  67
  68             virtual void addViewLayer( const ViewLayerSharedPtr&    rNewLayer,
  69                                        bool                         bRedrawLayer ) override;
  70             virtual bool removeViewLayer( const ViewLayerSharedPtr& rNewLayer ) override;
  71             virtual void clearAllViewLayers() override;
  72
  73
  74             // ExternalShapeBase methods
  75
  76
  77             virtual bool implRender( const ::basegfx::B2DRange& rCurrBounds ) const override;
  78             virtual void implViewChanged( const UnoViewSharedPtr& rView ) override;
  79             virtual void implViewsChanged() override;
  80             virtual bool implStartIntrinsicAnimation() override;
  81             virtual bool implEndIntrinsicAnimation() override;
  82             virtual void implPauseIntrinsicAnimation() override;
  83             virtual bool implIsIntrinsicAnimationPlaying() const override;
  84             virtual void implSetIntrinsicAnimationTime(double) override;
  85             void implSetLooping(bool bLooping) override;
  86
  87             /// the list of active view shapes (one for each registered view layer)
  88             typedef ::std::vector< ViewMediaShapeSharedPtr > ViewMediaShapeVector;
  89             ViewMediaShapeVector                             maViewMediaShapes;
  90             bool                                             mbIsPlaying;
  91         };
  92
  93         }
  94
  95         MediaShape::MediaShape( const uno::Reference< drawing::XShape >& xShape,
  96                                   double                                     nPrio,
  97                                 const SlideShowContext&                  rContext ) :
  98             ExternalShapeBase( xShape, nPrio, rContext ),
  99             maViewMediaShapes(),
 100             mbIsPlaying(false)
 101         {
 102         }
 103
 104
 105         void MediaShape::implViewChanged( const UnoViewSharedPtr& rView )
 106         {
 107             const ::basegfx::B2DRectangle& rBounds = getBounds();
 108             // determine ViewMediaShape that needs update
 109             for( const auto& pViewMediaShape : maViewMediaShapes )
 110                 if( pViewMediaShape->getViewLayer()->isOnView( rView ) )
 111                     pViewMediaShape->resize( rBounds );
 112         }
 113
 114
 115         void MediaShape::implViewsChanged()
 116         {
 117             const ::basegfx::B2DRectangle& rBounds = getBounds();
 118             // resize all ViewShapes
 119             for( const auto& pViewMediaShape : maViewMediaShapes )
 120                 pViewMediaShape->resize( rBounds );
 121         }
 122
 123
 124         void MediaShape::addViewLayer( const ViewLayerSharedPtr& rNewLayer,
 125                                        bool                      bRedrawLayer )
 126         {
 127             maViewMediaShapes.push_back(
 128                 std::make_shared<ViewMediaShape>( rNewLayer,
 129                                                   getXShape(),
 130                                                   mxComponentContext ));
 131
 132             // push new size to view shape
 133             maViewMediaShapes.back()->resize( getBounds() );
 134
 135             // render the Shape on the newly added ViewLayer
 136             if( bRedrawLayer )
 137                 maViewMediaShapes.back()->render( getBounds() );
 138         }
 139
 140
 141         bool MediaShape::removeViewLayer( const ViewLayerSharedPtr& rLayer )
 142         {
 143             const ViewMediaShapeVector::iterator aEnd( maViewMediaShapes.end() );
 144
 145             OSL_ENSURE( ::std::count_if(maViewMediaShapes.begin(),
 146                                         aEnd,
 147                                         [&rLayer]
 148                                         ( const ViewMediaShapeSharedPtr& pShape )
 149                                         { return rLayer == pShape->getViewLayer(); } ) < 2,
 150                         "MediaShape::removeViewLayer(): Duplicate ViewLayer entries!" );
 151
 152             ViewMediaShapeVector::iterator aIter;
 153
 154             if( (aIter=::std::remove_if( maViewMediaShapes.begin(),
 155                                          aEnd,
 156                                          [&rLayer]
 157                                          ( const ViewMediaShapeSharedPtr& pShape )
 158                                          { return rLayer == pShape->getViewLayer(); } ) ) == aEnd )
 159             {
 160                 // view layer seemingly was not added, failed
 161                 return false;
 162             }
 163
 164             // actually erase from container
 165             maViewMediaShapes.erase( aIter, aEnd );
 166
 167             return true;
 168         }
 169
 170
 171         void MediaShape::clearAllViewLayers()
 172         {
 173             maViewMediaShapes.clear();
 174         }
 175
 176
 177         bool MediaShape::implRender( const ::basegfx::B2DRange& rCurrBounds ) const
 178         {
 179             // redraw all view shapes, by calling their update() method
 180             if( o3tl::make_unsigned(::std::count_if( maViewMediaShapes.begin(),
 181                                  maViewMediaShapes.end(),
 182                                  [&rCurrBounds]
 183                                  ( const ViewMediaShapeSharedPtr& pShape )
 184                                  { return pShape->render( rCurrBounds ); } ))
 185                 != maViewMediaShapes.size() )
 186             {
 187                 // at least one of the ViewShape::update() calls did return
 188                 // false - update failed on at least one ViewLayer
 189                 return false;
 190             }
 191
 192             return true;
 193         }
 194
 195
 196         bool MediaShape::implStartIntrinsicAnimation()
 197         {
 198             for( const auto& pViewMediaShape : maViewMediaShapes )
 199                 pViewMediaShape->startMedia();
 200
 201             mbIsPlaying = true;
 202
 203             return true;
 204         }
 205
 206
 207         bool MediaShape::implEndIntrinsicAnimation()
 208         {
 209             for( const auto& pViewMediaShape : maViewMediaShapes )
 210                 pViewMediaShape->endMedia();
 211
 212             mbIsPlaying = false;
 213
 214             return true;
 215         }
 216
 217
 218         void MediaShape::implPauseIntrinsicAnimation()
 219         {
 220             for( const auto& pViewMediaShape : maViewMediaShapes )
 221                 pViewMediaShape->pauseMedia();
 222
 223             mbIsPlaying = false;
 224         }
 225
 226
 227         bool MediaShape::implIsIntrinsicAnimationPlaying() const
 228         {
 229             return mbIsPlaying;
 230         }
 231
 232
 233         void MediaShape::implSetIntrinsicAnimationTime(double fTime)
 234         {
 235             for( const auto& pViewMediaShape : maViewMediaShapes )
 236                 pViewMediaShape->setMediaTime( fTime );
 237         }
 238
 239         void MediaShape::implSetLooping(bool bLooping)
 240         {
 241             for (const auto& pViewMediaShape : maViewMediaShapes)
 242             {
 243                 pViewMediaShape->setLooping(bLooping);
 244             }
 245         }
 246
 247         ShapeSharedPtr createMediaShape(
 248             const uno::Reference< drawing::XShape >& xShape,
 249             double                                   nPrio,
 250             const SlideShowContext&                  rContext)
 251         {
 252             return std::make_shared<MediaShape>(xShape, nPrio, rContext);
 253         }
 254
 255 }
 256
 257 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */