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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  12  *   contributor license agreements. See the NOTICE file distributed
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  14  *   ownership. The ASF licenses this file to you under the Apache
  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/polygonprimitive2d.hxx>
  23 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  24 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  25
  26
  27 using namespace com::sun::star;
  28
  29
  30 namespace drawinglayer
  31 {
  32     namespace processor2d
  33     {
  34         LineGeometryExtractor2D::LineGeometryExtractor2D(const geometry::ViewInformation2D& rViewInformation)
  35         :   BaseProcessor2D(rViewInformation),
  36             maExtractedHairlines(),
  37             maExtractedLineFills(),
  38             mbInLineGeometry(false)
  39         {
  40         }
  41
  42         LineGeometryExtractor2D::~LineGeometryExtractor2D()
  43         {
  44         }
  45
  46         void LineGeometryExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  47         {
  48             switch(rCandidate.getPrimitive2DID())
  49             {
  50                 case PRIMITIVE2D_ID_POLYGONSTROKEPRIMITIVE2D :
  51                 case PRIMITIVE2D_ID_POLYGONSTROKEARROWPRIMITIVE2D :
  52                 {
  53                     // enter a line geometry group (with or without LineEnds)
  54                     bool bOldState(mbInLineGeometry);
  55                     mbInLineGeometry = true;
  56                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
  57                     mbInLineGeometry = bOldState;
  58                     break;
  59                 }
  60                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  61                 {
  62                     if(mbInLineGeometry)
  63                     {
  64                         // extract hairline line geometry in world coordinates
  65                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  66                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  67                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  68                         maExtractedHairlines.push_back(aLocalPolygon);
  69                     }
  70                     break;
  71                 }
  72                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  73                 {
  74                     if(mbInLineGeometry)
  75                     {
  76                         // extract filled line geometry (line with width)
  77                         const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  78                         basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  79                         aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  80                         maExtractedLineFills.push_back(aLocalPolyPolygon);
  81                     }
  82                     break;
  83                 }
  84                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
  85                 {
  86                     // remember current transformation and ViewInformation
  87                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
  88                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
  89
  90                     // create new transformations for CurrentTransformation and for local ViewInformation2D
  91                     const geometry::ViewInformation2D aViewInformation2D(
  92                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
  93                         getViewInformation2D().getViewTransformation(),
  94                         getViewInformation2D().getViewport(),
  95                         getViewInformation2D().getVisualizedPage(),
  96                         getViewInformation2D().getViewTime(),
  97                         getViewInformation2D().getExtendedInformationSequence());
  98                     updateViewInformation(aViewInformation2D);
  99
 100                     // process content
 101                     process(rTransformCandidate.getChildren());
 102
 103                     // restore transformations
 104                     updateViewInformation(aLastViewInformation2D);
 105
 106                     break;
 107                 }
 108                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 109                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 110                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 111                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 112                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
 113                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
 114                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 115                 {
 116                     // ignorable primitives
 117                     break;
 118                 }
 119                 default :
 120                 {
 121                     // process recursively
 122                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
 123                     break;
 124                 }
 125             }
 126         }
 127     } // end of namespace processor2d
 128 } // end of namespace drawinglayer
 129
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */