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#include <sdr/primitive2d/sdrole2primitive2d.hxx>
#include <svx/sdr/primitive2d/svx_primitivetypes2d.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <sdr/primitive2d/sdrdecompositiontools.hxx>
#include <drawinglayer/primitive2d/sdrdecompositiontools2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <utility>


using namespace com::sun::star;


namespace drawinglayer::primitive2d
{
        SdrOle2Primitive2D::SdrOle2Primitive2D(
            Primitive2DContainer&& rOLEContent,
            basegfx::B2DHomMatrix aTransform,
            const attribute::SdrLineFillEffectsTextAttribute& rSdrLFSTAttribute)
        :   maOLEContent(std::move(rOLEContent)),
            maTransform(std::move(aTransform)),
            maSdrLFSTAttribute(rSdrLFSTAttribute)
        {
        }

        bool SdrOle2Primitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BasePrimitive2D::operator==(rPrimitive))
            {
                const SdrOle2Primitive2D& rCompare = static_cast<const SdrOle2Primitive2D&>(rPrimitive);

                // #i108636# The standard operator== on two UNO sequences did not work as i
                // would have expected; it just checks the .is() states and the data type
                // of the sequence. What i need here is detection of equality of the whole
                // sequence content, thus i need to use the arePrimitive2DSequencesEqual helper
                // here instead of the operator== which lead to always returning false and thus
                // always re-decompositions of the subcontent.
                if(getOLEContent() == rCompare.getOLEContent()
                    && getTransform() == rCompare.getTransform()
                    && getSdrLFSTAttribute() == rCompare.getSdrLFSTAttribute())
                {
                    return true;
                }
            }

            return false;
        }

        void SdrOle2Primitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& /*aViewInformation*/) const
        {
            // to take care of getSdrLFSTAttribute() later, the same as in SdrGrafPrimitive2D::create2DDecomposition
            // should happen. For the moment we only need the OLE itself
            // Added complete primitive preparation using getSdrLFSTAttribute() now.
            Primitive2DContainer  aRetval;

            // create unit outline polygon
            const basegfx::B2DPolygon& aUnitOutline(basegfx::utils::createUnitPolygon());

            // add fill
            if(!getSdrLFSTAttribute().getFill().isDefault())
            {
                basegfx::B2DPolyPolygon aTransformed(aUnitOutline);

                aTransformed.transform(getTransform());
                aRetval.push_back(
                    createPolyPolygonFillPrimitive(
                        aTransformed,
                        getSdrLFSTAttribute().getFill(),
                        getSdrLFSTAttribute().getFillFloatTransGradient()));
            }

            // add line
            // #i97981# condition was inverse to purpose. When being compatible to paint version,
            // border needs to be suppressed
            if(!getSdrLFSTAttribute().getLine().isDefault())
            {
                // if line width is given, polygon needs to be grown by half of it to make the
                // outline to be outside of the bitmap
                if(0.0 != getSdrLFSTAttribute().getLine().getWidth())
                {
                    // decompose to get scale
                    basegfx::B2DVector aScale, aTranslate;
                    double fRotate, fShearX;
                    getTransform().decompose(aScale, aTranslate, fRotate, fShearX);

                    // create expanded range (add relative half line width to unit rectangle)
                    double fHalfLineWidth(getSdrLFSTAttribute().getLine().getWidth() * 0.5);
                    double fScaleX(0.0 != aScale.getX() ? fHalfLineWidth / fabs(aScale.getX()) : 1.0);
                    double fScaleY(0.0 != aScale.getY() ? fHalfLineWidth / fabs(aScale.getY()) : 1.0);
                    const basegfx::B2DRange aExpandedRange(-fScaleX, -fScaleY, 1.0 + fScaleX, 1.0 + fScaleY);
                    basegfx::B2DPolygon aExpandedUnitOutline(basegfx::utils::createPolygonFromRect(aExpandedRange));

                    aExpandedUnitOutline.transform(getTransform());
                    aRetval.push_back(
                        createPolygonLinePrimitive(
                            aExpandedUnitOutline,
                            getSdrLFSTAttribute().getLine(),
                            attribute::SdrLineStartEndAttribute()));
                }
                else
                {
                    basegfx::B2DPolygon aTransformed(aUnitOutline);

                    aTransformed.transform(getTransform());
                    aRetval.push_back(
                        createPolygonLinePrimitive(
                            aTransformed,
                            getSdrLFSTAttribute().getLine(),
                            attribute::SdrLineStartEndAttribute()));
                }
            }
            else
            {
                // if initially no line is defined, create one for HitTest and BoundRect
                aRetval.push_back(
                    createHiddenGeometryPrimitives2D(
                        false,
                        basegfx::B2DPolyPolygon(aUnitOutline),
                        getTransform()));
            }

            // add graphic content
            aRetval.append(getOLEContent());

            // add text, no need to suppress to stay compatible since text was
            // always supported by the old paints, too
            if(!getSdrLFSTAttribute().getText().isDefault())
            {
                aRetval.push_back(
                    createTextPrimitive(
                        basegfx::B2DPolyPolygon(aUnitOutline),
                        getTransform(),
                        getSdrLFSTAttribute().getText(),
                        getSdrLFSTAttribute().getLine(),
                        false,
                        false));
            }

            // add shadow
            if(!getSdrLFSTAttribute().getShadow().isDefault())
            {
                aRetval = createEmbeddedShadowPrimitive(
                    std::move(aRetval),
                    getSdrLFSTAttribute().getShadow());
            }

            rVisitor.visit(std::move(aRetval));
        }

        // provide unique ID
        sal_uInt32 SdrOle2Primitive2D::getPrimitive2DID() const
        {
            return PRIMITIVE2D_ID_SDROLE2PRIMITIVE2D;
        }

} // end of namespace

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