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/polygonprimitive2d.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             maExtractedContour(),
  43             mbExtractFillOnly(bExtractFillOnly)
  44         {
  45         }
  46
  47         ContourExtractor2D::~ContourExtractor2D()
  48         {
  49         }
  50
  51         void ContourExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  52         {
  53             switch(rCandidate.getPrimitive2DID())
  54             {
  55                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  56                 {
  57                     if(!mbExtractFillOnly)
  58                     {
  59                         // extract hairline in world coordinates
  60                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  61                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  62                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  63
  64                         if(aLocalPolygon.isClosed())
  65                         {
  66                             // line polygons need to be represented as open polygons to differentiate them
  67                             // from filled polygons
  68                             basegfx::utils::openWithGeometryChange(aLocalPolygon);
  69                         }
  70
  71                         maExtractedContour.emplace_back(aLocalPolygon);
  72                     }
  73                     break;
  74                 }
  75                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  76                 {
  77                     // extract fill in world coordinates
  78                     const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  79                     basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  80                     aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  81                     maExtractedContour.push_back(aLocalPolyPolygon);
  82                     break;
  83                 }
  84                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
  85                 {
  86                     // extract BoundRect from bitmaps in world coordinates
  87                     const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
  88                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rBitmapCandidate.getTransform());
  89                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
  90                     aPolygon.transform(aLocalTransform);
  91                     maExtractedContour.emplace_back(aPolygon);
  92                     break;
  93                 }
  94                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
  95                 {
  96                     // extract BoundRect from MetaFiles in world coordinates
  97                     const primitive2d::MetafilePrimitive2D& rMetaCandidate(static_cast< const primitive2d::MetafilePrimitive2D& >(rCandidate));
  98                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rMetaCandidate.getTransform());
  99                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
 100                     aPolygon.transform(aLocalTransform);
 101                     maExtractedContour.emplace_back(aPolygon);
 102                     break;
 103                 }
 104                 case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
 105                 {
 106                     // sub-transparence group. Look at children
 107                     const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
 108                     process(rTransCandidate.getChildren());
 109                     break;
 110                 }
 111                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 112                 {
 113                     // extract mask in world coordinates, ignore content
 114                     const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
 115                     basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask());
 116                     aMask.transform(getViewInformation2D().getObjectTransformation());
 117                     maExtractedContour.push_back(aMask);
 118                     break;
 119                 }
 120                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 121                 {
 122                     // remember current ViewInformation2D
 123                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 124                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 125
 126                     // create new local ViewInformation2D
 127                     const geometry::ViewInformation2D aViewInformation2D(
 128                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
 129                         getViewInformation2D().getViewTransformation(),
 130                         getViewInformation2D().getViewport(),
 131                         getViewInformation2D().getVisualizedPage(),
 132                         getViewInformation2D().getViewTime(),
 133                         getViewInformation2D().getExtendedInformationSequence());
 134                     updateViewInformation(aViewInformation2D);
 135
 136                     // process content
 137                     process(rTransformCandidate.getChildren());
 138
 139                     // restore transformations
 140                     updateViewInformation(aLastViewInformation2D);
 141
 142                     break;
 143                 }
 144                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 145                 {
 146                     // 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
 147                     const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 148                     const primitive2d::Primitive2DContainer xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
 149                     const primitive2d::Primitive2DContainer xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D());
 150
 151                     // process content
 152                     if(!xExtracted2DSceneGeometry.empty())
 153                     {
 154                         process(xExtracted2DSceneGeometry);
 155                     }
 156
 157                     // process content
 158                     if(!xExtracted2DSceneShadow.empty())
 159                     {
 160                         process(xExtracted2DSceneShadow);
 161                     }
 162
 163                     break;
 164                 }
 165                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 166                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 167                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 168                 {
 169                     // ignorable primitives
 170                     break;
 171                 }
 172                 case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
 173                 case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
 174                 {
 175                     // primitives who's BoundRect will be added in world coordinates
 176                     basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 177                     if (!aRange.isEmpty())
 178                     {
 179                         aRange.transform(getViewInformation2D().getObjectTransformation());
 180                         maExtractedContour.emplace_back(basegfx::utils::createPolygonFromRect(aRange));
 181                     }
 182                     break;
 183                 }
 184                 default :
 185                 {
 186                     // process recursively
 187                     process(rCandidate);
 188                     break;
 189                 }
 190             }
 191         }
 192
 193 } // end of namespace
 194
 195 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */