path: root/drawinglayer/source/primitive2d/polypolygonprimitive2d.cxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <basegfx/tools/canvastools.hxx>
#include <drawinglayer/primitive2d/fillgradientprimitive2d.hxx>
#include <drawinglayer/primitive2d/maskprimitive2d.hxx>
#include <drawinglayer/primitive2d/fillhatchprimitive2d.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <drawinglayer/primitive2d/unifiedtransparenceprimitive2d.hxx>
#include <drawinglayer/geometry/viewinformation2d.hxx>
#include <vcl/graph.hxx>



using namespace com::sun::star;



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonHairlinePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            const basegfx::B2DPolyPolygon aPolyPolygon(getB2DPolyPolygon());
            const sal_uInt32 nCount(aPolyPolygon.count());

            if(nCount)
            {
                Primitive2DSequence aRetval(nCount);

                for(sal_uInt32 a(0L); a < nCount; a++)
                {
                    aRetval[a] = Primitive2DReference(new PolygonHairlinePrimitive2D(aPolyPolygon.getB2DPolygon(a), getBColor()));
                }

                return aRetval;
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        PolyPolygonHairlinePrimitive2D::PolyPolygonHairlinePrimitive2D(const basegfx::B2DPolyPolygon& rPolyPolygon, const basegfx::BColor& rBColor)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maBColor(rBColor)
        {
        }

        bool PolyPolygonHairlinePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonHairlinePrimitive2D& rCompare = (PolyPolygonHairlinePrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getBColor() == rCompare.getBColor());
            }

            return false;
        }

        basegfx::B2DRange PolyPolygonHairlinePrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            // return range
            return basegfx::tools::getRange(getB2DPolyPolygon());
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonHairlinePrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONHAIRLINEPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonMarkerPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            const basegfx::B2DPolyPolygon aPolyPolygon(getB2DPolyPolygon());
            const sal_uInt32 nCount(aPolyPolygon.count());

            if(nCount)
            {
                Primitive2DSequence aRetval(nCount);

                for(sal_uInt32 a(0L); a < nCount; a++)
                {
                    aRetval[a] = Primitive2DReference(
                        new PolygonMarkerPrimitive2D(
                            aPolyPolygon.getB2DPolygon(a),
                            getRGBColorA(),
                            getRGBColorB(),
                            getDiscreteDashLength()));
                }

                return aRetval;
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        PolyPolygonMarkerPrimitive2D::PolyPolygonMarkerPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::BColor& rRGBColorA,
            const basegfx::BColor& rRGBColorB,
            double fDiscreteDashLength)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maRGBColorA(rRGBColorA),
            maRGBColorB(rRGBColorB),
            mfDiscreteDashLength(fDiscreteDashLength)
        {
        }

        bool PolyPolygonMarkerPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonMarkerPrimitive2D& rCompare = (PolyPolygonMarkerPrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getRGBColorA() == rCompare.getRGBColorA()
                    && getRGBColorB() == rCompare.getRGBColorB()
                    && getDiscreteDashLength() == rCompare.getDiscreteDashLength());
            }

            return false;
        }

        basegfx::B2DRange PolyPolygonMarkerPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            // return range
            return basegfx::tools::getRange(getB2DPolyPolygon());
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonMarkerPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONMARKERPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonStrokePrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            const basegfx::B2DPolyPolygon aPolyPolygon(getB2DPolyPolygon());
            const sal_uInt32 nCount(aPolyPolygon.count());

            if(nCount)
            {
                Primitive2DSequence aRetval(nCount);

                for(sal_uInt32 a(0L); a < nCount; a++)
                {
                    aRetval[a] = Primitive2DReference(
                        new PolygonStrokePrimitive2D(
                            aPolyPolygon.getB2DPolygon(a), getLineAttribute(), getStrokeAttribute()));
                }

                return aRetval;
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        PolyPolygonStrokePrimitive2D::PolyPolygonStrokePrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const attribute::LineAttribute& rLineAttribute,
            const attribute::StrokeAttribute& rStrokeAttribute)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maLineAttribute(rLineAttribute),
            maStrokeAttribute(rStrokeAttribute)
        {
        }

        PolyPolygonStrokePrimitive2D::PolyPolygonStrokePrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const attribute::LineAttribute& rLineAttribute)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maLineAttribute(rLineAttribute),
            maStrokeAttribute()
        {
        }

        bool PolyPolygonStrokePrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonStrokePrimitive2D& rCompare = (PolyPolygonStrokePrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getLineAttribute() == rCompare.getLineAttribute()
                    && getStrokeAttribute() == rCompare.getStrokeAttribute());
            }

            return false;
        }

        basegfx::B2DRange PolyPolygonStrokePrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            // get range of it (subdivided)
            basegfx::B2DRange aRetval(basegfx::tools::getRange(getB2DPolyPolygon()));

            // if width, grow by line width
            if(getLineAttribute().getWidth())
            {
                aRetval.grow(getLineAttribute().getWidth() / 2.0);
            }

            return aRetval;
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonStrokePrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONSTROKEPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        PolyPolygonColorPrimitive2D::PolyPolygonColorPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::BColor& rBColor)
        :   BasePrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maBColor(rBColor)
        {
        }

        bool PolyPolygonColorPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BasePrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonColorPrimitive2D& rCompare = (PolyPolygonColorPrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getBColor() == rCompare.getBColor());
            }

            return false;
        }

        basegfx::B2DRange PolyPolygonColorPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            // return range
            return basegfx::tools::getRange(getB2DPolyPolygon());
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonColorPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonGradientPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            if(!getFillGradient().isDefault())
            {
                // create SubSequence with FillGradientPrimitive2D
                const basegfx::B2DRange aPolyPolygonRange(getB2DPolyPolygon().getB2DRange());
                FillGradientPrimitive2D* pNewGradient = new FillGradientPrimitive2D(
                    aPolyPolygonRange,
                    getDefinitionRange(),
                    getFillGradient());
                const Primitive2DReference xSubRef(pNewGradient);
                const Primitive2DSequence aSubSequence(&xSubRef, 1L);

                // create mask primitive
                MaskPrimitive2D* pNewMask = new MaskPrimitive2D(getB2DPolyPolygon(), aSubSequence);
                const Primitive2DReference xRef(pNewMask);

                return Primitive2DSequence(&xRef, 1);
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        PolyPolygonGradientPrimitive2D::PolyPolygonGradientPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const attribute::FillGradientAttribute& rFillGradient)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maDefinitionRange(rPolyPolygon.getB2DRange()),
            maFillGradient(rFillGradient)
        {
        }

        PolyPolygonGradientPrimitive2D::PolyPolygonGradientPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::B2DRange& rDefinitionRange,
            const attribute::FillGradientAttribute& rFillGradient)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maDefinitionRange(rDefinitionRange),
            maFillGradient(rFillGradient)
        {
        }

        bool PolyPolygonGradientPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonGradientPrimitive2D& rCompare = (PolyPolygonGradientPrimitive2D&)rPrimitive;

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

            return false;
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonGradientPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONGRADIENTPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonHatchPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            if(!getFillHatch().isDefault())
            {
                // create SubSequence with FillHatchPrimitive2D
                const basegfx::B2DRange aPolyPolygonRange(getB2DPolyPolygon().getB2DRange());
                FillHatchPrimitive2D* pNewHatch = new FillHatchPrimitive2D(
                    aPolyPolygonRange,
                    getDefinitionRange(),
                    getBackgroundColor(),
                    getFillHatch());
                const Primitive2DReference xSubRef(pNewHatch);
                const Primitive2DSequence aSubSequence(&xSubRef, 1L);

                // create mask primitive
                MaskPrimitive2D* pNewMask = new MaskPrimitive2D(getB2DPolyPolygon(), aSubSequence);
                const Primitive2DReference xRef(pNewMask);

                return Primitive2DSequence(&xRef, 1);
            }
            else
            {
                return Primitive2DSequence();
            }
        }

        PolyPolygonHatchPrimitive2D::PolyPolygonHatchPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::BColor& rBackgroundColor,
            const attribute::FillHatchAttribute& rFillHatch)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maDefinitionRange(rPolyPolygon.getB2DRange()),
            maBackgroundColor(rBackgroundColor),
            maFillHatch(rFillHatch)
        {
        }

        PolyPolygonHatchPrimitive2D::PolyPolygonHatchPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::B2DRange& rDefinitionRange,
            const basegfx::BColor& rBackgroundColor,
            const attribute::FillHatchAttribute& rFillHatch)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maDefinitionRange(rDefinitionRange),
            maBackgroundColor(rBackgroundColor),
            maFillHatch(rFillHatch)
        {
        }

        bool PolyPolygonHatchPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(BufferedDecompositionPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonHatchPrimitive2D& rCompare = (PolyPolygonHatchPrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getDefinitionRange() == rCompare.getDefinitionRange()
                    && getBackgroundColor() == rCompare.getBackgroundColor()
                    && getFillHatch() == rCompare.getFillHatch());
            }

            return false;
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonHatchPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONHATCHPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonGraphicPrimitive2D::create2DDecomposition(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(GRAPHIC_BITMAP == aType || GRAPHIC_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::tools::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 traget 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 traget coordinate system.
                            basegfx::B2DRange aAdaptedRange(getFillGraphic().getGraphicRange());

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

                            aAdaptedRange.transform(aFromDefinitionRangeToGlobal);

                            basegfx::B2DHomMatrix aFromGlobalToOutRange(
                                basegfx::tools::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
                        const Primitive2DReference xRef(
                            new MaskPrimitive2D(
                                getB2DPolyPolygon(),
                                Primitive2DSequence(&xSubRef, 1)));

                        return Primitive2DSequence(&xRef, 1);
                    }
                }
            }

            return Primitive2DSequence();
        }

        PolyPolygonGraphicPrimitive2D::PolyPolygonGraphicPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const attribute::FillGraphicAttribute& rFillGraphic)
        :   BufferedDecompositionPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maDefinitionRange(rPolyPolygon.getB2DRange()),
            maFillGraphic(rFillGraphic)
        {
        }

        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 = (PolyPolygonGraphicPrimitive2D&)rPrimitive;

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

            return false;
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonGraphicPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONGRAPHICPRIMITIVE2D)

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



namespace drawinglayer
{
    namespace primitive2d
    {
        Primitive2DSequence PolyPolygonSelectionPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
        {
            Primitive2DSequence aRetval;

            if(getTransparence() < 1.0 && getB2DPolyPolygon().count())
            {
                if(getFill() && getB2DPolyPolygon().isClosed())
                {
                    // create fill primitive
                    const Primitive2DReference aFill(
                        new PolyPolygonColorPrimitive2D(
                            getB2DPolyPolygon(),
                            getColor()));

                    aRetval = Primitive2DSequence(&aFill, 1);
                }

                if(getDiscreteGrow() > 0.0)
                {
                    const attribute::LineAttribute aLineAttribute(
                        getColor(),
                        getDiscreteGrow() * getDiscreteUnit() * 2.0);
                    const Primitive2DReference aFatLine(
                        new PolyPolygonStrokePrimitive2D(
                            getB2DPolyPolygon(),
                            aLineAttribute));

                    appendPrimitive2DReferenceToPrimitive2DSequence(aRetval, aFatLine);
                }

                // embed filled to transparency (if used)
                if(aRetval.getLength() && getTransparence() > 0.0)
                {
                    const Primitive2DReference aTrans(
                        new UnifiedTransparencePrimitive2D(
                            aRetval,
                            getTransparence()));

                    aRetval = Primitive2DSequence(&aTrans, 1);
                }
            }

            return aRetval;
        }

        PolyPolygonSelectionPrimitive2D::PolyPolygonSelectionPrimitive2D(
            const basegfx::B2DPolyPolygon& rPolyPolygon,
            const basegfx::BColor& rColor,
            double fTransparence,
            double fDiscreteGrow,
            bool bFill)
        :   DiscreteMetricDependentPrimitive2D(),
            maPolyPolygon(rPolyPolygon),
            maColor(rColor),
            mfTransparence(fTransparence),
            mfDiscreteGrow(fabs(fDiscreteGrow)),
            mbFill(bFill)
        {
        }

        bool PolyPolygonSelectionPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
        {
            if(DiscreteMetricDependentPrimitive2D::operator==(rPrimitive))
            {
                const PolyPolygonSelectionPrimitive2D& rCompare = (PolyPolygonSelectionPrimitive2D&)rPrimitive;

                return (getB2DPolyPolygon() == rCompare.getB2DPolyPolygon()
                    && getColor() == rCompare.getColor()
                    && getTransparence() == rCompare.getTransparence()
                    && getDiscreteGrow() == rCompare.getDiscreteGrow()
                    && getFill() == rCompare.getFill());
            }

            return false;
        }

        basegfx::B2DRange PolyPolygonSelectionPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
        {
            basegfx::B2DRange aRetval(basegfx::tools::getRange(getB2DPolyPolygon()));

            if(getDiscreteGrow() > 0.0)
            {
                // get the current DiscreteUnit (not sure if getDiscreteUnit() is updated here, better go safe way)
                const double fDiscreteUnit((rViewInformation.getInverseObjectToViewTransformation() * basegfx::B2DVector(1.0, 0.0)).getLength());

                aRetval.grow(fDiscreteUnit * getDiscreteGrow());
            }

            return aRetval;
        }

        // provide unique ID
        ImplPrimitive2DIDBlock(PolyPolygonSelectionPrimitive2D, PRIMITIVE2D_ID_POLYPOLYGONSELECTIONPRIMITIVE2D)

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

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */