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#include <drawinglayer/primitive2d/animatedprimitive2d.hxx>
#include <drawinglayer/animation/animationtiming.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>

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

using namespace com::sun::star;

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

namespace drawinglayer
{
    namespace primitive2d
    {
        AnimatedSwitchPrimitive2D::AnimatedSwitchPrimitive2D(
            const animation::AnimationEntry& rAnimationEntry,
            const Primitive2DSequence& rChildren,
            bool bIsTextAnimation)
        :   GroupPrimitive2D(rChildren),
            mpAnimationEntry(0),
            mbIsTextAnimation(bIsTextAnimation)
        {
            // clone given animation description
            mpAnimationEntry = rAnimationEntry.clone();
        }

        AnimatedSwitchPrimitive2D::~AnimatedSwitchPrimitive2D()
        {
            // delete cloned animation description
            delete mpAnimationEntry;
        }

        bool AnimatedSwitchPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(GroupPrimitive2D::operator==(rPrimitive))
            {
                const AnimatedSwitchPrimitive2D& rCompare = static_cast< const AnimatedSwitchPrimitive2D& >(rPrimitive);

                return (getAnimationEntry() == rCompare.getAnimationEntry());
            }

            return false;
        }

        Primitive2DSequence AnimatedSwitchPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
        {
            if(getChildren().hasElements())
            {
                const double fState(getAnimationEntry().getStateAtTime(rViewInformation.getViewTime()));
                const sal_uInt32 nLen(getChildren().getLength());
                sal_uInt32 nIndex(basegfx::fround(fState * (double)nLen));

                if(nIndex >= nLen)
                {
                    nIndex = nLen - 1L;
                }

                const Primitive2DReference xRef(getChildren()[nIndex], uno::UNO_QUERY_THROW);
                return Primitive2DSequence(&xRef, 1L);
            }

            return Primitive2DSequence();
        }

        // provide unique ID
        ImplPrimitrive2DIDBlock(AnimatedSwitchPrimitive2D, PRIMITIVE2D_ID_ANIMATEDSWITCHPRIMITIVE2D)

    } // end of namespace primitive2d
} // end of namespace drawinglayer

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

namespace drawinglayer
{
    namespace primitive2d
    {
        AnimatedBlinkPrimitive2D::AnimatedBlinkPrimitive2D(
            const animation::AnimationEntry& rAnimationEntry,
            const Primitive2DSequence& rChildren,
            bool bIsTextAnimation)
        :   AnimatedSwitchPrimitive2D(rAnimationEntry, rChildren, bIsTextAnimation)
        {
        }

        Primitive2DSequence AnimatedBlinkPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
        {
            if(getChildren().hasElements())
            {
                const double fState(getAnimationEntry().getStateAtTime(rViewInformation.getViewTime()));

                if(fState < 0.5)
                {
                    return getChildren();
                }
            }

            return Primitive2DSequence();
        }

        // provide unique ID
        ImplPrimitrive2DIDBlock(AnimatedBlinkPrimitive2D, PRIMITIVE2D_ID_ANIMATEDBLINKPRIMITIVE2D)

    } // end of namespace primitive2d
} // end of namespace drawinglayer

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

namespace drawinglayer
{
    namespace primitive2d
    {
        AnimatedInterpolatePrimitive2D::AnimatedInterpolatePrimitive2D(
            const std::vector< basegfx::B2DHomMatrix >& rmMatrixStack,
            const animation::AnimationEntry& rAnimationEntry,
            const Primitive2DSequence& rChildren,
            bool bIsTextAnimation)
        :   AnimatedSwitchPrimitive2D(rAnimationEntry, rChildren, bIsTextAnimation),
            maMatrixStack()
        {
            // copy matrices to locally pre-decomposed matrix stack
            const sal_uInt32 nCount(rmMatrixStack.size());
            maMatrixStack.reserve(nCount);

            for(sal_uInt32 a(0L); a < nCount; a++)
            {
                maMatrixStack.push_back(basegfx::tools::B2DHomMatrixBufferedDecompose(rmMatrixStack[a]));
            }
        }

        Primitive2DSequence AnimatedInterpolatePrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
        {
            const sal_uInt32 nSize(maMatrixStack.size());

            if(nSize)
            {
                double fState(getAnimationEntry().getStateAtTime(rViewInformation.getViewTime()));

                if(fState < 0.0)
                {
                    fState = 0.0;
                }
                else if(fState > 1.0)
                {
                    fState = 1.0;
                }

                const double fIndex(fState * (double)(nSize - 1L));
                const sal_uInt32 nIndA(sal_uInt32(floor(fIndex)));
                const double fOffset(fIndex - (double)nIndA);
                basegfx::B2DHomMatrix aTargetTransform;
                std::vector< basegfx::tools::B2DHomMatrixBufferedDecompose >::const_iterator aMatA(maMatrixStack.begin() + nIndA);

                if(basegfx::fTools::equalZero(fOffset))
                {
                    // use matrix from nIndA directly
                    aTargetTransform = aMatA->getB2DHomMatrix();
                }
                else
                {
                    // interpolate. Get involved buffered decomposed matrices
                    const sal_uInt32 nIndB((nIndA + 1L) % nSize);
                    std::vector< basegfx::tools::B2DHomMatrixBufferedDecompose >::const_iterator aMatB(maMatrixStack.begin() + nIndB);

                    // interpolate for fOffset [0.0 .. 1.0[
                    const basegfx::B2DVector aScale(basegfx::interpolate(aMatA->getScale(), aMatB->getScale(), fOffset));
                    const basegfx::B2DVector aTranslate(basegfx::interpolate(aMatA->getTranslate(), aMatB->getTranslate(), fOffset));
                    const double fRotate(((aMatB->getRotate() - aMatA->getRotate()) * fOffset) + aMatA->getRotate());
                    const double fShearX(((aMatB->getShearX() - aMatA->getShearX()) * fOffset) + aMatA->getShearX());

                    // build matrix for state
                    aTargetTransform = basegfx::tools::createScaleShearXRotateTranslateB2DHomMatrix(
                        aScale, fShearX, fRotate, aTranslate);
                }

                // create new transform primitive reference, return new sequence
                const Primitive2DReference xRef(new TransformPrimitive2D(aTargetTransform, getChildren()));
                return Primitive2DSequence(&xRef, 1L);
            }
            else
            {
                return getChildren();
            }
        }

        // provide unique ID
        ImplPrimitrive2DIDBlock(AnimatedInterpolatePrimitive2D, PRIMITIVE2D_ID_ANIMATEDINTERPOLATEPRIMITIVE2D)

    } // end of namespace primitive2d
} // end of namespace drawinglayer

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

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