drawinglayer/source/processor3d/geometry2dextractor.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/processor3d/geometry2dextractor.hxx>
  21 #include <drawinglayer/primitive3d/drawinglayer_primitivetypes3d.hxx>
  22 #include <drawinglayer/primitive3d/transformprimitive3d.hxx>
  23 #include <drawinglayer/primitive3d/modifiedcolorprimitive3d.hxx>
  24 #include <drawinglayer/primitive3d/polygonprimitive3d.hxx>
  25 #include <basegfx/polygon/b2dpolygontools.hxx>
  26 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  27 #include <drawinglayer/primitive3d/polypolygonprimitive3d.hxx>
  28 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  29 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  30 #include <drawinglayer/primitive3d/textureprimitive3d.hxx>
  31
  32
  33
  34 using namespace com::sun::star;
  35
  36
  37
  38 namespace drawinglayer
  39 {
  40     namespace processor3d
  41     {
  42         // as tooling, the process() implementation takes over API handling and calls this
  43         // virtual render method when the primitive implementation is BasePrimitive3D-based.
  44         void Geometry2DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate)
  45         {
  46             // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch
  47             switch(rCandidate.getPrimitive3DID())
  48             {
  49                 case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D :
  50                 {
  51                     // transform group. Remember current transformations
  52                     const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate);
  53                     const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D());
  54
  55                     // create new transformation; add new object transform from right side
  56                     const geometry::ViewInformation3D aNewViewInformation3D(
  57                         aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(),
  58                         aLastViewInformation3D.getOrientation(),
  59                         aLastViewInformation3D.getProjection(),
  60                         aLastViewInformation3D.getDeviceToView(),
  61                         aLastViewInformation3D.getViewTime(),
  62                         aLastViewInformation3D.getExtendedInformationSequence());
  63                     updateViewInformation(aNewViewInformation3D);
  64
  65                     // let break down recursively
  66                     process(rPrimitive.getChildren());
  67
  68                     // restore transformations
  69                     updateViewInformation(aLastViewInformation3D);
  70                     break;
  71                 }
  72                 case PRIMITIVE3D_ID_MODIFIEDCOLORPRIMITIVE3D :
  73                 {
  74                     // ModifiedColorPrimitive3D; push, process and pop
  75                     const primitive3d::ModifiedColorPrimitive3D& rModifiedCandidate = static_cast< const primitive3d::ModifiedColorPrimitive3D& >(rCandidate);
  76                     const primitive3d::Primitive3DSequence& rSubSequence = rModifiedCandidate.getChildren();
  77
  78                     if(rSubSequence.hasElements())
  79                     {
  80                         maBColorModifierStack.push(rModifiedCandidate.getColorModifier());
  81                         process(rModifiedCandidate.getChildren());
  82                         maBColorModifierStack.pop();
  83                     }
  84                     break;
  85                 }
  86                 case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D :
  87                 {
  88                     // PolygonHairlinePrimitive3D
  89                     const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate);
  90                     basegfx::B2DPolygon a2DHairline(basegfx::tools::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()));
  91
  92                     if(a2DHairline.count())
  93                     {
  94                         a2DHairline.transform(getObjectTransformation());
  95                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getBColor()));
  96                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolygonHairlinePrimitive2D(a2DHairline, aModifiedColor));
  97                         primitive2d::appendPrimitive2DReferenceToPrimitive2DSequence(maPrimitive2DSequence, xRef);
  98                     }
  99                     break;
 100                 }
 101                 case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D :
 102                 {
 103                     // PolyPolygonMaterialPrimitive3D
 104                     const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate);
 105                     basegfx::B2DPolyPolygon a2DFill(basegfx::tools::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()));
 106
 107                     if(a2DFill.count())
 108                     {
 109                         a2DFill.transform(getObjectTransformation());
 110                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getMaterial().getColor()));
 111                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolyPolygonColorPrimitive2D(a2DFill, aModifiedColor));
 112                         primitive2d::appendPrimitive2DReferenceToPrimitive2DSequence(maPrimitive2DSequence, xRef);
 113                     }
 114                     break;
 115                 }
 116                 case PRIMITIVE3D_ID_GRADIENTTEXTUREPRIMITIVE3D :
 117                 case PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D :
 118                 case PRIMITIVE3D_ID_BITMAPTEXTUREPRIMITIVE3D :
 119                 case PRIMITIVE3D_ID_TRANSPARENCETEXTUREPRIMITIVE3D :
 120                 case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D :
 121                 {
 122                     // TexturePrimitive3D: Process children, do not try to decompose
 123                     const primitive3d::TexturePrimitive3D& rTexturePrimitive = static_cast< const primitive3d::TexturePrimitive3D& >(rCandidate);
 124                     const primitive3d::Primitive3DSequence aChildren(rTexturePrimitive.getChildren());
 125
 126                     if(aChildren.hasElements())
 127                     {
 128                         process(aChildren);
 129                     }
 130                     break;
 131                 }
 132                 case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D :
 133                 {
 134                     // accept but ignore labels and shadow; these should be extracted separately
 135                     break;
 136                 }
 137                 default :
 138                 {
 139                     // process recursively
 140                     process(rCandidate.get3DDecomposition(getViewInformation3D()));
 141                     break;
 142                 }
 143             }
 144         }
 145
 146         Geometry2DExtractingProcessor::Geometry2DExtractingProcessor(
 147             const geometry::ViewInformation3D& rViewInformation,
 148             const basegfx::B2DHomMatrix& rObjectTransformation)
 149         :   BaseProcessor3D(rViewInformation),
 150             maPrimitive2DSequence(),
 151             maObjectTransformation(rObjectTransformation),
 152             maBColorModifierStack()
 153         {
 154         }
 155     } // end of namespace processor3d
 156 } // end of namespace drawinglayer
 157
 158 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */