AOO410/main/drawinglayer/inc/drawinglayer/primitive2d/animatedprimitive2d.hxx

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#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_ANIMATEDPRIMITIVE2D_HXX
#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_ANIMATEDPRIMITIVE2D_HXX

#include <drawinglayer/drawinglayerdllapi.h>
#include <drawinglayer/primitive2d/groupprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>

//////////////////////////////////////////////////////////////////////////////
// predefines
namespace drawinglayer { namespace animation {
	class AnimationEntry;
}}

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace primitive2d
	{
        /** AnimatedSwitchPrimitive2D class

            This is the basic class for simple, animated primitives. The basic idea
            is to have an animation definition (AnimationEntry) who's basic 
            functionality is to return a state value for any given animation time in
            the range of [0.0 .. 1.0]. Depending on the state, the decomposition
            calculates an index, which of the members of the child vector is to
            be visualized.

            An example: For blinking, the Child vector should exist of two entries;
            for values of [0.0 .. 0.5] the first, else the last entry will be used.
            This mechanism is not limited to two entries, though.
         */
		class DRAWINGLAYER_DLLPUBLIC AnimatedSwitchPrimitive2D : public GroupPrimitive2D
		{
		private:
			/**
                The animation definition which allows translation of a point in time
			    to an animation state [0.0 .. 1.0]. This member contains a cloned
			    definition and is owned by this implementation.
             */
			animation::AnimationEntry*						mpAnimationEntry;

			/// bitfield
			/** flag if this is a text or graphic animation. Necessary since SdrViews need to differentiate
    			between both types if they are on/off
             */
			unsigned										mbIsTextAnimation : 1;

		public:
            /// constructor
			AnimatedSwitchPrimitive2D(
				const animation::AnimationEntry& rAnimationEntry, 
				const Primitive2DSequence& rChildren,
				bool bIsTextAnimation);

            /// destructor - needed due to mpAnimationEntry
			virtual ~AnimatedSwitchPrimitive2D();

			/// data read access
			const animation::AnimationEntry& getAnimationEntry() const { return *mpAnimationEntry; }
			bool isTextAnimation() const { return mbIsTextAnimation; }
			bool isGraphicAnimation() const { return !isTextAnimation(); }

			/// compare operator
			virtual bool operator==(const BasePrimitive2D& rPrimitive) const;

			/// provide unique ID
			DeclPrimitrive2DIDBlock()

			/** The getDecomposition is overloaded here since the decompose is dependent of the point in time,
			    so the default implementation is nut useful here, it needs to be handled locally
             */
			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;
		};
	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace primitive2d
	{
        /** AnimatedBlinkPrimitive2D class

            Basically the same mechanism as in AnimatedSwitchPrimitive2D, but the
            decomposition is specialized in delivering the children in the
            range [0.0.. 0.5] and an empty sequence else
         */
		class DRAWINGLAYER_DLLPUBLIC AnimatedBlinkPrimitive2D : public AnimatedSwitchPrimitive2D
		{
		protected:
		public:
            /// constructor
			AnimatedBlinkPrimitive2D(
				const animation::AnimationEntry& rAnimationEntry, 
				const Primitive2DSequence& rChildren,
				bool bIsTextAnimation);

			/// create local decomposition
			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;

			/// provide unique ID
			DeclPrimitrive2DIDBlock()
		};
	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
	namespace primitive2d
	{
        /** AnimatedInterpolatePrimitive2D class

            Specialized on multi-step animations based on matrix transformations. The
            Child sequelce will be embedded in a matrix transformation. That transformation
            will be linearly combined from the decomposed values and the animation value
            to allow a smooth animation.
         */
		class DRAWINGLAYER_DLLPUBLIC AnimatedInterpolatePrimitive2D : public AnimatedSwitchPrimitive2D
		{
		private:
			/// the transformations
			std::vector< basegfx::tools::B2DHomMatrixBufferedDecompose >		maMatrixStack;

		protected:
		public:
            /// constructor
			AnimatedInterpolatePrimitive2D(
				const std::vector< basegfx::B2DHomMatrix >& rmMatrixStack,
				const animation::AnimationEntry& rAnimationEntry, 
				const Primitive2DSequence& rChildren,
				bool bIsTextAnimation);

			/// create local decomposition
			virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const;

			/// provide unique ID
			DeclPrimitrive2DIDBlock()
		};
	} // end of namespace primitive2d
} // end of namespace drawinglayer

//////////////////////////////////////////////////////////////////////////////

#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_ANIMATEDPRIMITIVE2D_HXX

//////////////////////////////////////////////////////////////////////////////
// eof