/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <drawinglayer/primitive2d/PolyPolygonGraphicPrimitive2D.hxx>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
#include <vcl/graph.hxx>

using namespace com::sun::star;

namespace drawinglayer::primitive2d
{
void PolyPolygonGraphicPrimitive2D::create2DDecomposition(
    Primitive2DContainer& rContainer, const geometry::ViewInformation2D& /*rViewInformation*/) const
{
    if (!getFillGraphic().isDefault())
    {
        const Graphic& rGraphic = getFillGraphic().getGraphic();
        const GraphicType aType(rGraphic.GetType());

        // is there a bitmap or a metafile (do we have content)?
        if (GraphicType::Bitmap == aType || GraphicType::GdiMetafile == aType)
        {
            const Size aPrefSize(rGraphic.GetPrefSize());

            // does content have a size?
            if (aPrefSize.Width() && aPrefSize.Height())
            {
                // create SubSequence with FillGraphicPrimitive2D based on polygon range
                const basegfx::B2DRange aOutRange(getB2DPolyPolygon().getB2DRange());
                const basegfx::B2DHomMatrix aNewObjectTransform(
                    basegfx::utils::createScaleTranslateB2DHomMatrix(aOutRange.getRange(),
                                                                     aOutRange.getMinimum()));
                Primitive2DReference xSubRef;

                if (aOutRange != getDefinitionRange())
                {
                    // we want to paint (tiled) content which is defined relative to DefinitionRange
                    // with the same tiling and offset(s) in the target range of the geometry (the
                    // polygon). The range given in the local FillGraphicAttribute defines the position
                    // of the graphic in unit coordinates relative to the DefinitionRange. Transform
                    // this using DefinitionRange to get to the global definition and then with the
                    // inverse transformation from the target range to go to unit coordinates relative
                    // to that target coordinate system.
                    basegfx::B2DRange aAdaptedRange(getFillGraphic().getGraphicRange());

                    const basegfx::B2DHomMatrix aFromDefinitionRangeToGlobal(
                        basegfx::utils::createScaleTranslateB2DHomMatrix(
                            getDefinitionRange().getRange(), getDefinitionRange().getMinimum()));

                    aAdaptedRange.transform(aFromDefinitionRangeToGlobal);

                    basegfx::B2DHomMatrix aFromGlobalToOutRange(
                        basegfx::utils::createScaleTranslateB2DHomMatrix(aOutRange.getRange(),
                                                                         aOutRange.getMinimum()));
                    aFromGlobalToOutRange.invert();

                    aAdaptedRange.transform(aFromGlobalToOutRange);

                    const drawinglayer::attribute::FillGraphicAttribute
                        aAdaptedFillGraphicAttribute(getFillGraphic().getGraphic(), aAdaptedRange,
                                                     getFillGraphic().getTiling(),
                                                     getFillGraphic().getOffsetX(),
                                                     getFillGraphic().getOffsetY());

                    xSubRef = new FillGraphicPrimitive2D(aNewObjectTransform,
                                                         aAdaptedFillGraphicAttribute);
                }
                else
                {
                    xSubRef = new FillGraphicPrimitive2D(aNewObjectTransform, getFillGraphic());
                }

                // embed to mask primitive
                rContainer.push_back(
                    new MaskPrimitive2D(getB2DPolyPolygon(), Primitive2DContainer{ xSubRef }));
            }
        }
    }
}

PolyPolygonGraphicPrimitive2D::PolyPolygonGraphicPrimitive2D(
    const basegfx::B2DPolyPolygon& rPolyPolygon, const basegfx::B2DRange& rDefinitionRange,
    const attribute::FillGraphicAttribute& rFillGraphic)
    : BufferedDecompositionPrimitive2D()
    , maPolyPolygon(rPolyPolygon)
    , maDefinitionRange(rDefinitionRange)
    , maFillGraphic(rFillGraphic)
{
}

bool PolyPolygonGraphicPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
{
    if (BufferedDecompositionPrimitive2D::operator==(rPrimitive))
    {
        const PolyPolygonGraphicPrimitive2D& rCompare
            = static_cast<const PolyPolygonGraphicPrimitive2D&>(rPrimitive);

        return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                && getDefinitionRange() == rCompare.getDefinitionRange()
                && getFillGraphic() == rCompare.getFillGraphic());
    }

    return false;
}

// provide unique ID
sal_uInt32 PolyPolygonGraphicPrimitive2D::getPrimitive2DID() const
{
    return PRIMITIVE2D_ID_POLYPOLYGONGRAPHICPRIMITIVE2D;
}

} // end drawinglayer::primitive2d namespace

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