linegeometryextractor2d.cxx

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#include <drawinglayer/processor2d/linegeometryextractor2d.hxx>
#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
#include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
 
 
using namespace com::sun::star;
 
 
namespace drawinglayer::processor2d
{
        LineGeometryExtractor2D::LineGeometryExtractor2D(const geometry::ViewInformation2D& rViewInformation)
        :   BaseProcessor2D(rViewInformation),
            mbInLineGeometry(false)
        {
        }
 
        LineGeometryExtractor2D::~LineGeometryExtractor2D()
        {
        }
 
        void LineGeometryExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
        {
            switch(rCandidate.getPrimitive2DID())
            {
                case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
                case PRIMITIVE2D_ID_POLYGONSTROKEARROWPRIMITIVE2D :
                {
                    // enter a line geometry group (with or without LineEnds)
                    bool bOldState(mbInLineGeometry);
                    mbInLineGeometry = true;
                    process(rCandidate);
                    mbInLineGeometry = bOldState;
                    break;
                }
                case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
                {
                    if(mbInLineGeometry)
                    {
                        // extract hairline line geometry in world coordinates
                        const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
                        basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
                        aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
                        maExtractedHairlines.push_back(aLocalPolygon);
                    }
                    break;
                }
                case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
                {
                    if(mbInLineGeometry)
                    {
                        // extract filled line geometry (line with width)
                        const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
                        basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
                        aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
                        maExtractedLineFills.push_back(aLocalPolyPolygon);
                    }
                    break;
                }
                case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
                {
                    // remember current transformation and ViewInformation
                    const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
                    const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 
                    // create new transformations for CurrentTransformation and for local ViewInformation2D
                    geometry::ViewInformation2D aViewInformation2D(getViewInformation2D());
                    aViewInformation2D.setObjectTransformation(getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation());
                    updateViewInformation(aViewInformation2D);
 
                    // process content
                    process(rTransformCandidate.getChildren());
 
                    // restore transformations
                    updateViewInformation(aLastViewInformation2D);
 
                    break;
                }
                case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
                case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
                case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
                case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
                case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
                case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
                case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
                {
                    // ignorable primitives
                    break;
                }
                default :
                {
                    // process recursively
                    process(rCandidate);
                    break;
                }
            }
        }
 
} // end of namespace
 
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