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