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 using namespace com::sun::star;
  34
  35
  36 namespace drawinglayer
  37 {
  38     namespace processor3d
  39     {
  40         // as tooling, the process() implementation takes over API handling and calls this
  41         // virtual render method when the primitive implementation is BasePrimitive3D-based.
  42         void Geometry2DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate)
  43         {
  44             // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch
  45             switch(rCandidate.getPrimitive3DID())
  46             {
  47                 case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D :
  48                 {
  49                     // transform group. Remember current transformations
  50                     const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate);
  51                     const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D());
  52
  53                     // create new transformation; add new object transform from right side
  54                     const geometry::ViewInformation3D aNewViewInformation3D(
  55                         aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(),
  56                         aLastViewInformation3D.getOrientation(),
  57                         aLastViewInformation3D.getProjection(),
  58                         aLastViewInformation3D.getDeviceToView(),
  59                         aLastViewInformation3D.getViewTime(),
  60                         aLastViewInformation3D.getExtendedInformationSequence());
  61                     updateViewInformation(aNewViewInformation3D);
  62
  63                     // let break down recursively
  64                     process(rPrimitive.getChildren());
  65
  66                     // restore transformations
  67                     updateViewInformation(aLastViewInformation3D);
  68                     break;
  69                 }
  70                 case PRIMITIVE3D_ID_MODIFIEDCOLORPRIMITIVE3D :
  71                 {
  72                     // ModifiedColorPrimitive3D; push, process and pop
  73                     const primitive3d::ModifiedColorPrimitive3D& rModifiedCandidate = static_cast< const primitive3d::ModifiedColorPrimitive3D& >(rCandidate);
  74                     const primitive3d::Primitive3DContainer& rSubSequence = rModifiedCandidate.getChildren();
  75
  76                     if(!rSubSequence.empty())
  77                     {
  78                         maBColorModifierStack.push(rModifiedCandidate.getColorModifier());
  79                         process(rModifiedCandidate.getChildren());
  80                         maBColorModifierStack.pop();
  81                     }
  82                     break;
  83                 }
  84                 case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D :
  85                 {
  86                     // PolygonHairlinePrimitive3D
  87                     const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate);
  88                     basegfx::B2DPolygon a2DHairline(basegfx::utils::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()));
  89
  90                     if(a2DHairline.count())
  91                     {
  92                         a2DHairline.transform(getObjectTransformation());
  93                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getBColor()));
  94                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolygonHairlinePrimitive2D(a2DHairline, aModifiedColor));
  95                         maPrimitive2DSequence.push_back(xRef);
  96                     }
  97                     break;
  98                 }
  99                 case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D :
 100                 {
 101                     // PolyPolygonMaterialPrimitive3D
 102                     const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate);
 103                     basegfx::B2DPolyPolygon a2DFill(basegfx::utils::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()));
 104
 105                     if(a2DFill.count())
 106                     {
 107                         a2DFill.transform(getObjectTransformation());
 108                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getMaterial().getColor()));
 109                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolyPolygonColorPrimitive2D(a2DFill, aModifiedColor));
 110                         maPrimitive2DSequence.push_back(xRef);
 111                     }
 112                     break;
 113                 }
 114                 case PRIMITIVE3D_ID_GRADIENTTEXTUREPRIMITIVE3D :
 115                 case PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D :
 116                 case PRIMITIVE3D_ID_BITMAPTEXTUREPRIMITIVE3D :
 117                 case PRIMITIVE3D_ID_TRANSPARENCETEXTUREPRIMITIVE3D :
 118                 case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D :
 119                 {
 120                     // TexturePrimitive3D: Process children, do not try to decompose
 121                     const primitive3d::TexturePrimitive3D& rTexturePrimitive = static_cast< const primitive3d::TexturePrimitive3D& >(rCandidate);
 122                     const primitive3d::Primitive3DContainer& aChildren(rTexturePrimitive.getChildren());
 123
 124                     if(!aChildren.empty())
 125                     {
 126                         process(aChildren);
 127                     }
 128                     break;
 129                 }
 130                 case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D :
 131                 {
 132                     // accept but ignore labels and shadow; these should be extracted separately
 133                     break;
 134                 }
 135                 default :
 136                 {
 137                     // process recursively
 138                     process(rCandidate.get3DDecomposition(getViewInformation3D()));
 139                     break;
 140                 }
 141             }
 142         }
 143
 144         Geometry2DExtractingProcessor::Geometry2DExtractingProcessor(
 145             const geometry::ViewInformation3D& rViewInformation,
 146             const basegfx::B2DHomMatrix& rObjectTransformation)
 147         :   BaseProcessor3D(rViewInformation),
 148             maPrimitive2DSequence(),
 149             maObjectTransformation(rObjectTransformation),
 150             maBColorModifierStack()
 151         {
 152         }
 153     } // end of namespace processor3d
 154 } // end of namespace drawinglayer
 155
 156 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */