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/polypolygonprimitive2d.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
  37 {
  38     namespace processor2d
  39     {
  40         ContourExtractor2D::ContourExtractor2D(
  41             const geometry::ViewInformation2D& rViewInformation,
  42             bool bExtractFillOnly)
  43         :   BaseProcessor2D(rViewInformation),
  44             maExtractedContour(),
  45             mbExtractFillOnly(bExtractFillOnly)
  46         {
  47         }
  48
  49         ContourExtractor2D::~ContourExtractor2D()
  50         {
  51         }
  52
  53         void ContourExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  54         {
  55             switch(rCandidate.getPrimitive2DID())
  56             {
  57                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  58                 {
  59                     if(!mbExtractFillOnly)
  60                     {
  61                         // extract hairline in world coordinates
  62                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  63                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  64                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  65
  66                         if(aLocalPolygon.isClosed())
  67                         {
  68                             // line polygons need to be represented as open polygons to differentiate them
  69                             // from filled polygons
  70                             basegfx::utils::openWithGeometryChange(aLocalPolygon);
  71                         }
  72
  73                         maExtractedContour.emplace_back(aLocalPolygon);
  74                     }
  75                     break;
  76                 }
  77                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  78                 {
  79                     // extract fill in world coordinates
  80                     const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  81                     basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  82                     aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  83                     maExtractedContour.push_back(aLocalPolyPolygon);
  84                     break;
  85                 }
  86                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
  87                 {
  88                     // extract BoundRect from bitmaps in world coordinates
  89                     const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
  90                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rBitmapCandidate.getTransform());
  91                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
  92                     aPolygon.transform(aLocalTransform);
  93                     maExtractedContour.emplace_back(aPolygon);
  94                     break;
  95                 }
  96                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
  97                 {
  98                     // extract BoundRect from MetaFiles in world coordinates
  99                     const primitive2d::MetafilePrimitive2D& rMetaCandidate(static_cast< const primitive2d::MetafilePrimitive2D& >(rCandidate));
 100                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rMetaCandidate.getTransform());
 101                     basegfx::B2DPolygon aPolygon(basegfx::utils::createUnitPolygon());
 102                     aPolygon.transform(aLocalTransform);
 103                     maExtractedContour.emplace_back(aPolygon);
 104                     break;
 105                 }
 106                 case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
 107                 {
 108                     // sub-transparence group. Look at children
 109                     const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
 110                     process(rTransCandidate.getChildren());
 111                     break;
 112                 }
 113                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 114                 {
 115                     // extract mask in world coordinates, ignore content
 116                     const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
 117                     basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask());
 118                     aMask.transform(getViewInformation2D().getObjectTransformation());
 119                     maExtractedContour.push_back(aMask);
 120                     break;
 121                 }
 122                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 123                 {
 124                     // remember current ViewInformation2D
 125                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 126                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 127
 128                     // create new local ViewInformation2D
 129                     const geometry::ViewInformation2D aViewInformation2D(
 130                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
 131                         getViewInformation2D().getViewTransformation(),
 132                         getViewInformation2D().getViewport(),
 133                         getViewInformation2D().getVisualizedPage(),
 134                         getViewInformation2D().getViewTime(),
 135                         getViewInformation2D().getExtendedInformationSequence());
 136                     updateViewInformation(aViewInformation2D);
 137
 138                     // process content
 139                     process(rTransformCandidate.getChildren());
 140
 141                     // restore transformations
 142                     updateViewInformation(aLastViewInformation2D);
 143
 144                     break;
 145                 }
 146                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 147                 {
 148                     // 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
 149                     const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 150                     const primitive2d::Primitive2DContainer xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
 151                     const primitive2d::Primitive2DContainer xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D());
 152
 153                     // process content
 154                     if(!xExtracted2DSceneGeometry.empty())
 155                     {
 156                         process(xExtracted2DSceneGeometry);
 157                     }
 158
 159                     // process content
 160                     if(!xExtracted2DSceneShadow.empty())
 161                     {
 162                         process(xExtracted2DSceneShadow);
 163                     }
 164
 165                     break;
 166                 }
 167                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 168                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 169                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 170                 {
 171                     // ignorable primitives
 172                     break;
 173                 }
 174                 case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
 175                 case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
 176                 {
 177                     // primitives who's BoundRect will be added in world coordinates
 178                     basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 179                     if (!aRange.isEmpty())
 180                     {
 181                         aRange.transform(getViewInformation2D().getObjectTransformation());
 182                         maExtractedContour.emplace_back(basegfx::utils::createPolygonFromRect(aRange));
 183                     }
 184                     break;
 185                 }
 186                 default :
 187                 {
 188                     // process recursively
 189                     process(rCandidate);
 190                     break;
 191                 }
 192             }
 193         }
 194
 195     } // end of namespace processor2d
 196 } // end of namespace drawinglayer
 197
 198 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */