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
  34 using namespace com::sun::star;
  35
  36
  37
  38 namespace drawinglayer
  39 {
  40     namespace processor2d
  41     {
  42         ContourExtractor2D::ContourExtractor2D(
  43             const geometry::ViewInformation2D& rViewInformation,
  44             bool bExtractFillOnly)
  45         :   BaseProcessor2D(rViewInformation),
  46             maExtractedContour(),
  47             mbExtractFillOnly(bExtractFillOnly)
  48         {
  49         }
  50
  51         ContourExtractor2D::~ContourExtractor2D()
  52         {
  53         }
  54
  55         void ContourExtractor2D::processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate)
  56         {
  57             switch(rCandidate.getPrimitive2DID())
  58             {
  59                 case PRIMITIVE2D_ID_POLYGONHAIRLINEPRIMITIVE2D :
  60                 {
  61                     if(!mbExtractFillOnly)
  62                     {
  63                         // extract hairline in world coordinates
  64                         const primitive2d::PolygonHairlinePrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolygonHairlinePrimitive2D& >(rCandidate));
  65                         basegfx::B2DPolygon aLocalPolygon(rPolygonCandidate.getB2DPolygon());
  66                         aLocalPolygon.transform(getViewInformation2D().getObjectTransformation());
  67
  68                         if(aLocalPolygon.isClosed())
  69                         {
  70                             // line polygons need to be represented as open polygons to differentiate them
  71                             // from filled polygons
  72                             basegfx::tools::openWithGeometryChange(aLocalPolygon);
  73                         }
  74
  75                         maExtractedContour.push_back(basegfx::B2DPolyPolygon(aLocalPolygon));
  76                     }
  77                     break;
  78                 }
  79                 case PRIMITIVE2D_ID_POLYPOLYGONCOLORPRIMITIVE2D :
  80                 {
  81                     // extract fill in world coordinates
  82                     const primitive2d::PolyPolygonColorPrimitive2D& rPolygonCandidate(static_cast< const primitive2d::PolyPolygonColorPrimitive2D& >(rCandidate));
  83                     basegfx::B2DPolyPolygon aLocalPolyPolygon(rPolygonCandidate.getB2DPolyPolygon());
  84                     aLocalPolyPolygon.transform(getViewInformation2D().getObjectTransformation());
  85                     maExtractedContour.push_back(aLocalPolyPolygon);
  86                     break;
  87                 }
  88                 case PRIMITIVE2D_ID_BITMAPPRIMITIVE2D :
  89                 {
  90                     // extract BoundRect from bitmaps in world coordinates
  91                     const primitive2d::BitmapPrimitive2D& rBitmapCandidate(static_cast< const primitive2d::BitmapPrimitive2D& >(rCandidate));
  92                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rBitmapCandidate.getTransform());
  93                     basegfx::B2DPolygon aPolygon(basegfx::tools::createUnitPolygon());
  94                     aPolygon.transform(aLocalTransform);
  95                     maExtractedContour.push_back(basegfx::B2DPolyPolygon(aPolygon));
  96                     break;
  97                 }
  98                 case PRIMITIVE2D_ID_METAFILEPRIMITIVE2D :
  99                 {
 100                     // extract BoundRect from MetaFiles in world coordinates
 101                     const primitive2d::MetafilePrimitive2D& rMetaCandidate(static_cast< const primitive2d::MetafilePrimitive2D& >(rCandidate));
 102                     basegfx::B2DHomMatrix aLocalTransform(getViewInformation2D().getObjectTransformation() * rMetaCandidate.getTransform());
 103                     basegfx::B2DPolygon aPolygon(basegfx::tools::createUnitPolygon());
 104                     aPolygon.transform(aLocalTransform);
 105                     maExtractedContour.push_back(basegfx::B2DPolyPolygon(aPolygon));
 106                     break;
 107                 }
 108                 case PRIMITIVE2D_ID_TRANSPARENCEPRIMITIVE2D :
 109                 {
 110                     // sub-transparence group. Look at children
 111                     const primitive2d::TransparencePrimitive2D& rTransCandidate(static_cast< const primitive2d::TransparencePrimitive2D& >(rCandidate));
 112                     process(rTransCandidate.getChildren());
 113                     break;
 114                 }
 115                 case PRIMITIVE2D_ID_MASKPRIMITIVE2D :
 116                 {
 117                     // extract mask in world coordinates, ignore content
 118                     const primitive2d::MaskPrimitive2D& rMaskCandidate(static_cast< const primitive2d::MaskPrimitive2D& >(rCandidate));
 119                     basegfx::B2DPolyPolygon aMask(rMaskCandidate.getMask());
 120                     aMask.transform(getViewInformation2D().getObjectTransformation());
 121                     maExtractedContour.push_back(basegfx::B2DPolyPolygon(aMask));
 122                     break;
 123                 }
 124                 case PRIMITIVE2D_ID_TRANSFORMPRIMITIVE2D :
 125                 {
 126                     // remember current ViewInformation2D
 127                     const primitive2d::TransformPrimitive2D& rTransformCandidate(static_cast< const primitive2d::TransformPrimitive2D& >(rCandidate));
 128                     const geometry::ViewInformation2D aLastViewInformation2D(getViewInformation2D());
 129
 130                     // create new local ViewInformation2D
 131                     const geometry::ViewInformation2D aViewInformation2D(
 132                         getViewInformation2D().getObjectTransformation() * rTransformCandidate.getTransformation(),
 133                         getViewInformation2D().getViewTransformation(),
 134                         getViewInformation2D().getViewport(),
 135                         getViewInformation2D().getVisualizedPage(),
 136                         getViewInformation2D().getViewTime(),
 137                         getViewInformation2D().getExtendedInformationSequence());
 138                     updateViewInformation(aViewInformation2D);
 139
 140                     // process content
 141                     process(rTransformCandidate.getChildren());
 142
 143                     // restore transformations
 144                     updateViewInformation(aLastViewInformation2D);
 145
 146                     break;
 147                 }
 148                 case PRIMITIVE2D_ID_SCENEPRIMITIVE2D :
 149                 {
 150                     // 2D Scene primitive containing 3D stuff; extract 2D contour in world coordinates
 151                     const primitive2d::ScenePrimitive2D& rScenePrimitive2DCandidate(static_cast< const primitive2d::ScenePrimitive2D& >(rCandidate));
 152                     const primitive2d::Primitive2DSequence xExtracted2DSceneGeometry(rScenePrimitive2DCandidate.getGeometry2D());
 153                     const primitive2d::Primitive2DSequence xExtracted2DSceneShadow(rScenePrimitive2DCandidate.getShadow2D(getViewInformation2D()));
 154
 155                     // process content
 156                     if(xExtracted2DSceneGeometry.hasElements())
 157                     {
 158                         process(xExtracted2DSceneGeometry);
 159                     }
 160
 161                     // process content
 162                     if(xExtracted2DSceneShadow.hasElements())
 163                     {
 164                         process(xExtracted2DSceneShadow);
 165                     }
 166
 167                     break;
 168                 }
 169                 case PRIMITIVE2D_ID_WRONGSPELLPRIMITIVE2D :
 170                 case PRIMITIVE2D_ID_MARKERARRAYPRIMITIVE2D :
 171                 case PRIMITIVE2D_ID_POINTARRAYPRIMITIVE2D :
 172                 {
 173                     // ignorable primitives
 174                     break;
 175                 }
 176                 case PRIMITIVE2D_ID_TEXTSIMPLEPORTIONPRIMITIVE2D :
 177                 case PRIMITIVE2D_ID_TEXTDECORATEDPORTIONPRIMITIVE2D :
 178                 {
 179                     // primitives who's BoundRect will be added in world coordinates
 180                     basegfx::B2DRange aRange(rCandidate.getB2DRange(getViewInformation2D()));
 181                     aRange.transform(getViewInformation2D().getObjectTransformation());
 182                     maExtractedContour.push_back(basegfx::B2DPolyPolygon(basegfx::tools::createPolygonFromRect(aRange)));
 183                     break;
 184                 }
 185                 default :
 186                 {
 187                     // process recursively
 188                     process(rCandidate.get2DDecomposition(getViewInformation2D()));
 189                     break;
 190                 }
 191             }
 192         }
 193
 194     } // end of namespace processor2d
 195 } // end of namespace drawinglayer
 196
 197 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */