drawinglayer/source/processor2d/contourextractor2d.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  15  *   License, Version 2.0 (the "License"); you may not use this file
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <drawinglayer/processor2d/contourextractor2d.hxx>
  21 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
  22 #include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
  23 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  24 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
  25 #include <basegfx/polygon/b2dpolygontools.hxx>
  26 #include <drawinglayer/primitive2d/metafileprimitive2d.hxx>
  27 #include <drawinglayer/primitive2d/transparenceprimitive2d.hxx>
  28 #include <drawinglayer/primitive2d/maskprimitive2d.hxx>
  29 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
  30 #include <drawinglayer/primitive2d/sceneprimitive2d.hxx>
  31
  32
  33 using namespace com::sun::star;
  34
  35
  36 namespace drawinglayer::processor2d
  37 {
  38         ContourExtractor2D::ContourExtractor2D(
  39             const geometry::ViewInformation2D& rViewInformation,
  40             bool bExtractFillOnly)
  41         :   BaseProcessor2D(rViewInformation),
  42             mbExtractFillOnly(bExtractFillOnly)
  43         {
  44         }
  45
  46         ContourExtractor2D::~ContourExtractor2D()
  47         {
  48         }
  49
  50         void ContourExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  51         {
  52             switch(rCandidate.getPrimitive2DID())
  53             {
  54                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  55                 {
  56                     if(!mbExtractFillOnly)
  57                     {
  58                         // extract hairline in world coordinates
  59                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  60                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  61                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  62
  63                         if(aLocalPolygon.isClosed())
  64                         {
  65                             // line polygons need to be represented as open polygons to differentiate them
  66                             // from filled polygons
  67                             basegfx::utils::openWithGeometryChange(aLocalPolygon);
  68                         }
  69
  70                         maExtractedContour.emplace_back(aLocalPolygon);
  71                     }
  72                     break;
  73                 }
  74                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  75                 {
  76                     // extract fill in world coordinates
  77                     const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  78                     basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  79                     aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  80                     maExtractedContour.push_back(aLocalPolyPolygon);
  81                     break;
  82                 }
  83                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
  84                 {
  85                     // extract BoundRect from bitmaps in world coordinates
  86                     const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
  87                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rBitmapCandidate.getTransform());
  88                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
  89                     aPolygon.transform(aLocalTransform);
  90                     maExtractedContour.emplace_back(aPolygon);
  91                     break;
  92                 }
  93                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
  94                 {
  95                     // extract BoundRect from MetaFiles in world coordinates
  96                     const primitive2d::MetafilePrimitive2D& rMetaCandidate(static_cast< const primitive2d::MetafilePrimitive2D& >(rCandidate));
  97                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rMetaCandidate.getTransform());
  98                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
  99                     aPolygon.transform(aLocalTransform);
 100                     maExtractedContour.emplace_back(aPolygon);
 101                     break;
 102                 }
 103                 case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
 104                 {
 105                     // sub-transparence group. Look at children
 106                     const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
 107                     process(rTransCandidate.getChildren());
 108                     break;
 109                 }
 110                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 111                 {
 112                     // extract mask in world coordinates, ignore content
 113                     const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
 114                     basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask());
 115                     aMask.transform(getViewInformation2D().getObjectTransformation());
 116                     maExtractedContour.push_back(aMask);
 117                     break;
 118                 }
 119                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 120                 {
 121                     // remember current ViewInformation2D
 122                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 123                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 124
 125                     // create new local ViewInformation2D
 126                     geometry::ViewInformation2D aViewInformation2D(getViewInformation2D());
 127                     aViewInformation2D.setObjectTransformation(getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation());
 128                     updateViewInformation(aViewInformation2D);
 129
 130                     // process content
 131                     process(rTransformCandidate.getChildren());
 132
 133                     // restore transformations
 134                     updateViewInformation(aLastViewInformation2D);
 135
 136                     break;
 137                 }
 138                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 139                 {
 140                     // 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
 141                     const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 142                     const primitive2d::Primitive2DContainer xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
 143                     const primitive2d::Primitive2DContainer xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D());
 144
 145                     // process content
 146                     if(!xExtracted2DSceneGeometry.empty())
 147                     {
 148                         process(xExtracted2DSceneGeometry);
 149                     }
 150
 151                     // process content
 152                     if(!xExtracted2DSceneShadow.empty())
 153                     {
 154                         process(xExtracted2DSceneShadow);
 155                     }
 156
 157                     break;
 158                 }
 159                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 160                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 161                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 162                 {
 163                     // ignorable primitives
 164                     break;
 165                 }
 166                 case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
 167                 case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
 168                 {
 169                     // primitives who's BoundRect will be added in world coordinates
 170                     basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 171                     if (!aRange.isEmpty())
 172                     {
 173                         aRange.transform(getViewInformation2D().getObjectTransformation());
 174                         maExtractedContour.emplace_back(basegfx::utils::createPolygonFromRect(aRange));
 175                     }
 176                     break;
 177                 }
 178                 default :
 179                 {
 180                     // process recursively
 181                     process(rCandidate);
 182                     break;
 183                 }
 184             }
 185         }
 186
 187 } // end of namespace
 188
 189 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */