+/**
+ * An float animatable property of a scene-graph object.
+ */
+template <>
+class AnimatableProperty<float> : public AnimatablePropertyBase
+{
+public:
+
+ /**
+ * Create an animatable property.
+ * @param [in] initialValue The initial value of the property.
+ */
+ AnimatableProperty( float initialValue )
+ : mValue( initialValue ),
+ mBaseValue( initialValue )
+ {
+ }
+
+ /**
+ * Virtual destructor.
+ */
+ virtual ~AnimatableProperty()
+ {
+ }
+
+ /**
+ * @copydoc Dali::Internal::SceneGraph::PropertyBase::GetType()
+ */
+ virtual Dali::Property::Type GetType() const
+ {
+ return Dali::PropertyTypes::Get<float>();
+ }
+
+ /**
+ * @copydoc Dali::Internal::SceneGraph::PropertyBase::ResetToBaseValue()
+ */
+ virtual void ResetToBaseValue(BufferIndex updateBufferIndex)
+ {
+ if (CLEAN_FLAG != mDirtyFlags)
+ {
+ mValue[updateBufferIndex] = mBaseValue;
+
+ mDirtyFlags = ( mDirtyFlags >> 1 );
+ }
+ }
+
+ /**
+ * @copydoc Dali::Internal::PropertyInputImpl::GetFloat()
+ */
+ virtual const float& GetFloat( BufferIndex bufferIndex ) const
+ {
+ return mValue[ bufferIndex ];
+ }
+
+ /**
+ * Set the property value. This will only persist for the current frame; the property
+ * will be reset with the base value, at the beginning of the next frame.
+ * @param[in] bufferIndex The buffer to write.
+ * @param[in] value The new property value.
+ */
+ void Set(BufferIndex bufferIndex, float value)
+ {
+ mValue[bufferIndex] = value;
+
+ OnSet();
+ }
+
+ /**
+ * Change the property value by a relative amount.
+ * @param[in] bufferIndex The buffer to write.
+ * @param[in] delta The property will change by this amount.
+ */
+ void SetRelative(BufferIndex bufferIndex, float delta)
+ {
+ mValue[bufferIndex] = mValue[bufferIndex] + delta;
+
+ OnSet();
+ }
+
+ /**
+ * @copydoc Dali::SceneGraph::AnimatableProperty::Get()
+ */
+ float& Get(size_t bufferIndex)
+ {
+ return mValue[bufferIndex];
+ }
+
+ /**
+ * @copydoc Dali::SceneGraph::AnimatableProperty::Get()
+ */
+ const float& Get(size_t bufferIndex) const
+ {
+ return mValue[bufferIndex];
+ }
+
+ /**
+ * Retrieve the property value.
+ * @param[in] bufferIndex The buffer to read.
+ * @return The property value.
+ */
+ float& operator[](size_t bufferIndex)
+ {
+ return mValue[bufferIndex];
+ }
+
+ /**
+ * Retrieve the property value.
+ * @param[in] bufferIndex The buffer to read.
+ * @return The property value.
+ */
+ const float& operator[](size_t bufferIndex) const
+ {
+ return mValue[bufferIndex];
+ }
+
+ /**
+ * Set both the property value & base value.
+ * @param[in] bufferIndex The buffer to write for the property value.
+ * @param[in] value The new property value.
+ */
+ void Bake(BufferIndex bufferIndex, float value)
+ {
+ mValue[bufferIndex] = value;
+ mBaseValue = mValue[bufferIndex];
+
+ OnBake();
+ }
+
+ /**
+ * Change the property value & base value by a relative amount.
+ * @param[in] bufferIndex The buffer to write for the local property value.
+ * @param[in] delta The property will change by this amount.
+ */
+ void BakeRelative(BufferIndex bufferIndex, float delta)
+ {
+ mValue[bufferIndex] = mValue[bufferIndex] + delta;
+ mBaseValue = mValue[bufferIndex];
+
+ OnBake();
+ }
+
+ /**
+ * Sets both double-buffered values & the base value.
+ * This should only be used when the owning object has not been connected to the scene-graph.
+ * @param[in] value The new property value.
+ */
+ void SetInitial(const float& value)
+ {
+ mValue[0] = value;
+ mValue[1] = mValue[0];
+ mBaseValue = mValue[0];
+ }
+
+ /**
+ * Change both double-buffered values & the base value by a relative amount.
+ * This should only be used when the owning object has not been connected to the scene-graph.
+ * @param[in] delta The property will change by this amount.
+ */
+ void SetInitialRelative(const float& delta)
+ {
+ mValue[0] = mValue[0] + delta;
+ mValue[1] = mValue[0];
+ mBaseValue = mValue[0];
+ }
+
+private:
+
+ // Undefined
+ AnimatableProperty(const AnimatableProperty& property);
+
+ // Undefined
+ AnimatableProperty& operator=(const AnimatableProperty& rhs);
+
+private:
+
+ DoubleBuffered<float> mValue; ///< The double-buffered property value
+ float mBaseValue; ///< Reset to this base value at the beginning of each frame