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.
   4  *
   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             OUString                                         maFallbackDir;
  92         };
  93
  94         }
  95
  96         MediaShape::MediaShape( const uno::Reference< drawing::XShape >& xShape,
  97                                   double                                     nPrio,
  98                                 const SlideShowContext&                  rContext ) :
  99             ExternalShapeBase( xShape, nPrio, rContext ),
 100             maViewMediaShapes(),
 101             mbIsPlaying(false),
 102             maFallbackDir(rContext.maFallbackDir)
 103         {
 104         }
 105
 106
 107         void MediaShape::implViewChanged( const UnoViewSharedPtr& rView )
 108         {
 109             const ::basegfx::B2DRectangle aBounds = getBounds();
 110             // determine ViewMediaShape that needs update
 111             for( const auto& pViewMediaShape : maViewMediaShapes )
 112                 if( pViewMediaShape->getViewLayer()->isOnView( rView ) )
 113                     pViewMediaShape->resize( aBounds );
 114         }
 115
 116
 117         void MediaShape::implViewsChanged()
 118         {
 119             const ::basegfx::B2DRectangle aBounds = getBounds();
 120             // resize all ViewShapes
 121             for( const auto& pViewMediaShape : maViewMediaShapes )
 122                 pViewMediaShape->resize( aBounds );
 123         }
 124
 125
 126         void MediaShape::addViewLayer( const ViewLayerSharedPtr& rNewLayer,
 127                                        bool                      bRedrawLayer )
 128         {
 129             maViewMediaShapes.push_back(
 130                 std::make_shared<ViewMediaShape>( rNewLayer,
 131                                                   getXShape(),
 132                                                   mxComponentContext,
 133                                                   maFallbackDir ));
 134
 135             // push new size to view shape
 136             maViewMediaShapes.back()->resize( getBounds() );
 137
 138             // render the Shape on the newly added ViewLayer
 139             if( bRedrawLayer )
 140                 maViewMediaShapes.back()->render( getBounds() );
 141         }
 142
 143
 144         bool MediaShape::removeViewLayer( const ViewLayerSharedPtr& rLayer )
 145         {
 146             const ViewMediaShapeVector::iterator aEnd( maViewMediaShapes.end() );
 147
 148             OSL_ENSURE( ::std::count_if(maViewMediaShapes.begin(),
 149                                         aEnd,
 150                                         [&rLayer]
 151                                         ( const ViewMediaShapeSharedPtr& pShape )
 152                                         { return rLayer == pShape->getViewLayer(); } ) < 2,
 153                         "MediaShape::removeViewLayer(): Duplicate ViewLayer entries!" );
 154
 155 // TODO : needed for the moment since ANDROID doesn't know size_t return from std::erase_if
 156 #if defined ANDROID
 157             ViewMediaShapeVector::iterator aIter;
 158
 159             if( (aIter=::std::remove_if( maViewMediaShapes.begin(),
 160                                          aEnd,
 161                                          [&rLayer]
 162                                          ( const ViewMediaShapeSharedPtr& pShape )
 163                                          { return rLayer == pShape->getViewLayer(); } ) ) == aEnd )
 164             {
 165                 // view layer seemingly was not added, failed
 166                 return false;
 167             }
 168
 169             // actually erase from container
 170             maViewMediaShapes.erase( aIter, aEnd );
 171
 172             return true;
 173 #else
 174             size_t nb = std::erase_if(maViewMediaShapes,
 175                                          [&rLayer]
 176                                          ( const ViewMediaShapeSharedPtr& pShape )
 177                                          { return rLayer == pShape->getViewLayer(); } );
 178             // if nb == 0, it means view media shape seemingly was not added, failed
 179             return (nb != 0);
 180 #endif
 181         }
 182
 183
 184         void MediaShape::clearAllViewLayers()
 185         {
 186             maViewMediaShapes.clear();
 187         }
 188
 189
 190         bool MediaShape::implRender( const ::basegfx::B2DRange& rCurrBounds ) const
 191         {
 192             // redraw all view shapes, by calling their update() method
 193             if( o3tl::make_unsigned(::std::count_if( maViewMediaShapes.begin(),
 194                                  maViewMediaShapes.end(),
 195                                  [&rCurrBounds]
 196                                  ( const ViewMediaShapeSharedPtr& pShape )
 197                                  { return pShape->render( rCurrBounds ); } ))
 198                 != maViewMediaShapes.size() )
 199             {
 200                 // at least one of the ViewShape::update() calls did return
 201                 // false - update failed on at least one ViewLayer
 202                 return false;
 203             }
 204
 205             return true;
 206         }
 207
 208
 209         bool MediaShape::implStartIntrinsicAnimation()
 210         {
 211             for( const auto& pViewMediaShape : maViewMediaShapes )
 212                 pViewMediaShape->startMedia();
 213
 214             mbIsPlaying = true;
 215
 216             return true;
 217         }
 218
 219
 220         bool MediaShape::implEndIntrinsicAnimation()
 221         {
 222             for( const auto& pViewMediaShape : maViewMediaShapes )
 223                 pViewMediaShape->endMedia();
 224
 225             mbIsPlaying = false;
 226
 227             return true;
 228         }
 229
 230
 231         void MediaShape::implPauseIntrinsicAnimation()
 232         {
 233             for( const auto& pViewMediaShape : maViewMediaShapes )
 234                 pViewMediaShape->pauseMedia();
 235
 236             mbIsPlaying = false;
 237         }
 238
 239
 240         bool MediaShape::implIsIntrinsicAnimationPlaying() const
 241         {
 242             return mbIsPlaying;
 243         }
 244
 245
 246         void MediaShape::implSetIntrinsicAnimationTime(double fTime)
 247         {
 248             for( const auto& pViewMediaShape : maViewMediaShapes )
 249                 pViewMediaShape->setMediaTime( fTime );
 250         }
 251
 252         void MediaShape::implSetLooping(bool bLooping)
 253         {
 254             for (const auto& pViewMediaShape : maViewMediaShapes)
 255             {
 256                 pViewMediaShape->setLooping(bLooping);
 257             }
 258         }
 259
 260         ShapeSharedPtr createMediaShape(
 261             const uno::Reference< drawing::XShape >& xShape,
 262             double                                   nPrio,
 263             const SlideShowContext&                  rContext)
 264         {
 265             return std::make_shared<MediaShape>(xShape, nPrio, rContext);
 266         }
 267
 268 }
 269
 270 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */