backgroundcolorprimitive2d.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
 
 
using namespace com::sun::star;
 
 
namespace drawinglayer::primitive2d
{
        void BackgroundColorPrimitive2D::create2DDecomposition(Primitive2DContainer& rContainer, const geometry::ViewInformation2D& rViewInformation) const
        {
            // transparency invalid or completely transparent, done
            if(getTransparency() < 0.0 || getTransparency() >= 1.0)
                return;
 
            // no viewport, not visible, done
            if(rViewInformation.getViewport().isEmpty())
                return;
 
            // create decompose geometry
            const basegfx::B2DPolygon aOutline(basegfx::utils::createPolygonFromRect(rViewInformation.getViewport()));
            Primitive2DReference aDecompose(new PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aOutline), getBColor()));
 
            if(getTransparency() != 0.0)
            {
                // if used, embed decompose geometry to unified transparency
                Primitive2DContainer aContent { aDecompose };
                aDecompose = Primitive2DReference(
                    new UnifiedTransparencePrimitive2D(
                        std::move(aContent),
                        getTransparency()));
            }
 
            rContainer.push_back(aDecompose);
        }
 
        BackgroundColorPrimitive2D::BackgroundColorPrimitive2D(
            const basegfx::BColor& rBColor,
            double fTransparency)
        :   maBColor(rBColor),
            mfTransparency(fTransparency)
        {
        }
 
        bool BackgroundColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const BackgroundColorPrimitive2D& rCompare = static_cast<const BackgroundColorPrimitive2D&>(rPrimitive);
 
                return (getBColor() == rCompare.getBColor() && getTransparency() == rCompare.getTransparency());
            }
 
            return false;
        }
 
        basegfx::B2DRange BackgroundColorPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
        {
            // always as big as the view
            return rViewInformation.getViewport();
        }
 
        void BackgroundColorPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
        {
            if(!getBuffered2DDecomposition().empty() && (maLastViewport != rViewInformation.getViewport()))
            {
                // conditions of last local decomposition have changed, delete
                const_cast< BackgroundColorPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer());
            }
 
            if(getBuffered2DDecomposition().empty())
            {
                // remember ViewRange
                const_cast< BackgroundColorPrimitive2D* >(this)->maLastViewport = rViewInformation.getViewport();
            }
 
            // use parent implementation
            BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
        }
 
        // provide unique ID
        sal_uInt32 BackgroundColorPrimitive2D::getPrimitive2DID() const
        {
            return PRIMITIVE2D_ID_BACKGROUNDCOLORPRIMITIVE2D;
        }
 
} // end of namespace
 
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