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 <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/primitive3d/polypolygonprimitive3d.hxx>
  27 #include <basegfx/polygon/b2dpolypolygontools.hxx>
  28 #include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
  29 #include <drawinglayer/primitive2d/PolyPolygonColorPrimitive2D.hxx>
  30 #include <primitive3d/textureprimitive3d.hxx>
  31 #include <utility>
  32
  33
  34 namespace drawinglayer::processor3d
  35 {
  36         // as tooling, the process() implementation takes over API handling and calls this
  37         // virtual render method when the primitive implementation is BasePrimitive3D-based.
  38         void Geometry2DExtractingProcessor::processBasePrimitive3D(const primitive3d::BasePrimitive3D& rCandidate)
  39         {
  40             // it is a BasePrimitive3D implementation, use getPrimitive3DID() call for switch
  41             switch(rCandidate.getPrimitive3DID())
  42             {
  43                 case PRIMITIVE3D_ID_TRANSFORMPRIMITIVE3D :
  44                 {
  45                     // transform group. Remember current transformations
  46                     const primitive3d::TransformPrimitive3D& rPrimitive = static_cast< const primitive3d::TransformPrimitive3D& >(rCandidate);
  47                     const geometry::ViewInformation3D aLastViewInformation3D(getViewInformation3D());
  48
  49                     // create new transformation; add new object transform from right side
  50                     const geometry::ViewInformation3D aNewViewInformation3D(
  51                         aLastViewInformation3D.getObjectTransformation() * rPrimitive.getTransformation(),
  52                         aLastViewInformation3D.getOrientation(),
  53                         aLastViewInformation3D.getProjection(),
  54                         aLastViewInformation3D.getDeviceToView(),
  55                         aLastViewInformation3D.getViewTime(),
  56                         aLastViewInformation3D.getExtendedInformationSequence());
  57                     updateViewInformation(aNewViewInformation3D);
  58
  59                     // let break down recursively
  60                     process(rPrimitive.getChildren());
  61
  62                     // restore transformations
  63                     updateViewInformation(aLastViewInformation3D);
  64                     break;
  65                 }
  66                 case PRIMITIVE3D_ID_MODIFIEDCOLORPRIMITIVE3D :
  67                 {
  68                     // ModifiedColorPrimitive3D; push, process and pop
  69                     const primitive3d::ModifiedColorPrimitive3D& rModifiedCandidate = static_cast< const primitive3d::ModifiedColorPrimitive3D& >(rCandidate);
  70                     const primitive3d::Primitive3DContainer& rSubSequence = rModifiedCandidate.getChildren();
  71
  72                     if(!rSubSequence.empty())
  73                     {
  74                         maBColorModifierStack.push(rModifiedCandidate.getColorModifier());
  75                         process(rModifiedCandidate.getChildren());
  76                         maBColorModifierStack.pop();
  77                     }
  78                     break;
  79                 }
  80                 case PRIMITIVE3D_ID_POLYGONHAIRLINEPRIMITIVE3D :
  81                 {
  82                     // PolygonHairlinePrimitive3D
  83                     const primitive3d::PolygonHairlinePrimitive3D& rPrimitive = static_cast< const primitive3d::PolygonHairlinePrimitive3D& >(rCandidate);
  84                     basegfx::B2DPolygon a2DHairline(basegfx::utils::createB2DPolygonFromB3DPolygon(rPrimitive.getB3DPolygon(), getViewInformation3D().getObjectToView()));
  85
  86                     if(a2DHairline.count())
  87                     {
  88                         a2DHairline.transform(getObjectTransformation());
  89                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getBColor()));
  90                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolygonHairlinePrimitive2D(std::move(a2DHairline), aModifiedColor));
  91                         maPrimitive2DSequence.push_back(xRef);
  92                     }
  93                     break;
  94                 }
  95                 case PRIMITIVE3D_ID_POLYPOLYGONMATERIALPRIMITIVE3D :
  96                 {
  97                     // PolyPolygonMaterialPrimitive3D
  98                     const primitive3d::PolyPolygonMaterialPrimitive3D& rPrimitive = static_cast< const primitive3d::PolyPolygonMaterialPrimitive3D& >(rCandidate);
  99                     basegfx::B2DPolyPolygon a2DFill(basegfx::utils::createB2DPolyPolygonFromB3DPolyPolygon(rPrimitive.getB3DPolyPolygon(), getViewInformation3D().getObjectToView()));
 100
 101                     if(a2DFill.count())
 102                     {
 103                         a2DFill.transform(getObjectTransformation());
 104                         const basegfx::BColor aModifiedColor(maBColorModifierStack.getModifiedColor(rPrimitive.getMaterial().getColor()));
 105                         const primitive2d::Primitive2DReference xRef(new primitive2d::PolyPolygonColorPrimitive2D(std::move(a2DFill), aModifiedColor));
 106                         maPrimitive2DSequence.push_back(xRef);
 107                     }
 108                     break;
 109                 }
 110                 case PRIMITIVE3D_ID_GRADIENTTEXTUREPRIMITIVE3D :
 111                 case PRIMITIVE3D_ID_HATCHTEXTUREPRIMITIVE3D :
 112                 case PRIMITIVE3D_ID_BITMAPTEXTUREPRIMITIVE3D :
 113                 case PRIMITIVE3D_ID_TRANSPARENCETEXTUREPRIMITIVE3D :
 114                 case PRIMITIVE3D_ID_UNIFIEDTRANSPARENCETEXTUREPRIMITIVE3D :
 115                 {
 116                     // TexturePrimitive3D: Process children, do not try to decompose
 117                     const primitive3d::TexturePrimitive3D& rTexturePrimitive = static_cast< const primitive3d::TexturePrimitive3D& >(rCandidate);
 118                     const primitive3d::Primitive3DContainer& aChildren(rTexturePrimitive.getChildren());
 119
 120                     if(!aChildren.empty())
 121                     {
 122                         process(aChildren);
 123                     }
 124                     break;
 125                 }
 126                 case PRIMITIVE3D_ID_SHADOWPRIMITIVE3D :
 127                 {
 128                     // accept but ignore labels and shadow; these should be extracted separately
 129                     break;
 130                 }
 131                 default :
 132                 {
 133                     // process recursively
 134                     process(rCandidate.get3DDecomposition(getViewInformation3D()));
 135                     break;
 136                 }
 137             }
 138         }
 139
 140         Geometry2DExtractingProcessor::Geometry2DExtractingProcessor(
 141             const geometry::ViewInformation3D& rViewInformation,
 142             basegfx::B2DHomMatrix aObjectTransformation)
 143         :   BaseProcessor3D(rViewInformation),
 144             maObjectTransformation(std::move(aObjectTransformation)),
 145             maBColorModifierStack()
 146         {
 147         }
 148
 149 } // end of namespace
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */