slideshow/source/engine/animationnodes/animationcolornode.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_slideshow.hxx"
  33
  34 // must be first
  35 #include <canvas/debug.hxx>
  36 #include <canvas/verbosetrace.hxx>
  37 #include <com/sun/star/animations/AnimationColorSpace.hpp>
  38
  39 #include "coloranimation.hxx"
  40 #include "hslcoloranimation.hxx"
  41 #include "animationcolornode.hxx"
  42 #include "animationfactory.hxx"
  43 #include "activitiesfactory.hxx"
  44
  45 using namespace com::sun::star;
  46
  47 namespace slideshow {
  48 namespace internal {
  49
  50 namespace {
  51 /** Little wrapper for HSL to RGB mapping.
  52
  53     This class implements the HSLColorAnimation interface,
  54     internally converting to RGB and forwarding to
  55     ColorAnimation.
  56 */
  57 class HSLWrapper : public HSLColorAnimation
  58 {
  59 public:
  60     HSLWrapper( const ColorAnimationSharedPtr& rAnimation )
  61         : mpAnimation( rAnimation )
  62     {
  63         ENSURE_OR_THROW(
  64             mpAnimation,
  65             "HSLWrapper::HSLWrapper(): Invalid color animation delegate" );
  66     }
  67
  68     virtual void prefetch( const AnimatableShapeSharedPtr&,
  69                            const ShapeAttributeLayerSharedPtr& )
  70     {}
  71
  72     virtual void start( const AnimatableShapeSharedPtr&     rShape,
  73                         const ShapeAttributeLayerSharedPtr& rAttrLayer )
  74     {
  75         mpAnimation->start( rShape, rAttrLayer );
  76     }
  77
  78     virtual void end()
  79     {
  80         mpAnimation->end();
  81     }
  82
  83     virtual bool operator()( const HSLColor& rColor )
  84     {
  85         return (*mpAnimation)( RGBColor( rColor ) );
  86     }
  87
  88     virtual HSLColor getUnderlyingValue() const
  89     {
  90         return HSLColor( mpAnimation->getUnderlyingValue() );
  91     }
  92
  93 private:
  94     ColorAnimationSharedPtr mpAnimation;
  95 };
  96
  97 } // anon namespace
  98
  99 AnimationActivitySharedPtr AnimationColorNode::createActivity() const
 100 {
 101     ActivitiesFactory::CommonParameters aParms( fillCommonParameters() );
 102
 103     switch( mxColorNode->getColorInterpolation() )
 104     {
 105     case animations::AnimationColorSpace::RGB:
 106         return ActivitiesFactory::createAnimateActivity(
 107             aParms,
 108             AnimationFactory::createColorPropertyAnimation(
 109                 mxColorNode->getAttributeName(),
 110                 getShape(),
 111                 getContext().mpSubsettableShapeManager,
 112                 getSlideSize() ),
 113             getXAnimateNode() );
 114
 115     case animations::AnimationColorSpace::HSL:
 116         // Wrap a plain ColorAnimation with the HSL
 117         // wrapper, which implements the HSLColorAnimation
 118         // interface, and internally converts HSL to RGB color
 119         return ActivitiesFactory::createAnimateActivity(
 120             aParms,
 121             HSLColorAnimationSharedPtr(
 122                 new HSLWrapper(
 123                     AnimationFactory::createColorPropertyAnimation(
 124                         mxColorNode->getAttributeName(),
 125                         getShape(),
 126                         getContext().mpSubsettableShapeManager,
 127                         getSlideSize() ))),
 128             mxColorNode );
 129
 130     default:
 131         ENSURE_OR_THROW( false, "AnimationColorNode::createColorActivity(): "
 132                           "Unexpected color space" );
 133     }
 134
 135     return AnimationActivitySharedPtr();
 136 }
 137
 138 } // namespace internal
 139 } // namespace slideshow
 140