drawinglayer/source/processor2d/linegeometryextractor2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <drawinglayer/processor2d/linegeometryextractor2d.hxx>
  21 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  22 #include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
  23 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  24 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  25
  26
  27 using namespace com::sun::star;
  28
  29
  30 namespace drawinglayer::processor2d
  31 {
  32         LineGeometryExtractor2D::LineGeometryExtractor2D(const geometry::ViewInformation2D& rViewInformation)
  33         :   BaseProcessor2D(rViewInformation),
  34             mbInLineGeometry(false)
  35         {
  36         }
  37
  38         LineGeometryExtractor2D::~LineGeometryExtractor2D()
  39         {
  40         }
  41
  42         void LineGeometryExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  43         {
  44             switch(rCandidate.getPrimitive2DID())
  45             {
  46                 case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
  47                 case PRIMITIVE2D_ID_POLYGONSTROKEARROWPRIMITIVE2D :
  48                 {
  49                     // enter a line geometry group (with or without LineEnds)
  50                     bool bOldState(mbInLineGeometry);
  51                     mbInLineGeometry = true;
  52                     process(rCandidate);
  53                     mbInLineGeometry = bOldState;
  54                     break;
  55                 }
  56                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  57                 {
  58                     if(mbInLineGeometry)
  59                     {
  60                         // extract hairline line geometry in world coordinates
  61                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  62                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  63                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  64                         maExtractedHairlines.push_back(aLocalPolygon);
  65                     }
  66                     break;
  67                 }
  68                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  69                 {
  70                     if(mbInLineGeometry)
  71                     {
  72                         // extract filled line geometry (line with width)
  73                         const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  74                         basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  75                         aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  76                         maExtractedLineFills.push_back(aLocalPolyPolygon);
  77                     }
  78                     break;
  79                 }
  80                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
  81                 {
  82                     // remember current transformation and ViewInformation
  83                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
  84                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
  85
  86                     // create new transformations for CurrentTransformation and for local ViewInformation2D
  87                     geometry::ViewInformation2D aViewInformation2D(getViewInformation2D());
  88                     aViewInformation2D.setObjectTransformation(getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation());
  89                     updateViewInformation(aViewInformation2D);
  90
  91                     // process content
  92                     process(rTransformCandidate.getChildren());
  93
  94                     // restore transformations
  95                     updateViewInformation(aLastViewInformation2D);
  96
  97                     break;
  98                 }
  99                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 100                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 101                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 102                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 103                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
 104                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
 105                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 106                 {
 107                     // ignorable primitives
 108                     break;
 109                 }
 110                 default :
 111                 {
 112                     // process recursively
 113                     process(rCandidate);
 114                     break;
 115                 }
 116             }
 117         }
 118
 119 } // end of namespace
 120
 121 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */