svx/source/sdr/contact/viewcontactofe3d.cxx

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  31
  32 // MARKER(update_precomp.py): autogen include statement, do not remove
  33 #include "precompiled_svx.hxx"
  34
  35 #include <svx/sdr/contact/viewcontactofe3d.hxx>
  36 #include <svx/sdr/contact/viewobjectcontactofe3d.hxx>
  37 #include <svx/obj3d.hxx>
  38 #include <drawinglayer/primitive2d/embedded3dprimitive2d.hxx>
  39 #include <svx/sdr/contact/viewcontactofe3dscene.hxx>
  40 #include <drawinglayer/attribute/sdrattribute.hxx>
  41 #include <drawinglayer/attribute/sdrattribute3d.hxx>
  42 #include <svx/scene3d.hxx>
  43 #include <drawinglayer/primitive3d/transformprimitive3d.hxx>
  44
  45 //////////////////////////////////////////////////////////////////////////////
  46
  47 namespace
  48 {
  49     const sdr::contact::ViewContactOfE3dScene* tryToFindVCOfE3DScene(
  50         const sdr::contact::ViewContact& rCandidate,
  51         basegfx::B3DHomMatrix& o_rInBetweenObjectTransform)
  52     {
  53         const sdr::contact::ViewContactOfE3dScene* pSceneParent =
  54             dynamic_cast< const sdr::contact::ViewContactOfE3dScene* >(rCandidate.GetParentContact());
  55
  56         if(pSceneParent)
  57         {
  58             // each 3d object (including in-between scenes) should have a scene as parent
  59             const sdr::contact::ViewContactOfE3dScene* pSceneParentParent =
  60                 dynamic_cast< const sdr::contact::ViewContactOfE3dScene* >(pSceneParent->GetParentContact());
  61
  62             if(pSceneParentParent)
  63             {
  64                 // the parent scene of rCandidate is a in-between scene, call recursively and collect
  65                 // the in-between scene's object transformation part in o_rInBetweenObjectTransform
  66                 const basegfx::B3DHomMatrix& rSceneParentTransform = pSceneParent->GetE3dScene().GetTransform();
  67                 o_rInBetweenObjectTransform = rSceneParentTransform * o_rInBetweenObjectTransform;
  68                 return tryToFindVCOfE3DScene(*pSceneParent, o_rInBetweenObjectTransform);
  69             }
  70             else
  71             {
  72                 // the parent scene is the outmost scene
  73                 return pSceneParent;
  74             }
  75         }
  76
  77         // object hierarchy structure is incorrect; no result
  78         return 0;
  79     }
  80 } // end of anonymous namespace
  81
  82 //////////////////////////////////////////////////////////////////////////////
  83
  84 namespace sdr
  85 {
  86     namespace contact
  87     {
  88         drawinglayer::primitive2d::Primitive2DSequence ViewContactOfE3d::impCreateWithGivenPrimitive3DSequence(
  89             const drawinglayer::primitive3d::Primitive3DSequence& rxContent3D) const
  90         {
  91             drawinglayer::primitive2d::Primitive2DSequence xRetval;
  92
  93             if(rxContent3D.hasElements())
  94             {
  95                 // try to get the outmost ViewObjectContactOfE3dScene for this single 3d object,
  96                 // the ones on the way there are grouping scenes. Collect the in-between scene's
  97                 // transformations to build a correct object transformation for the embedded
  98                 // object
  99                 basegfx::B3DHomMatrix aInBetweenObjectTransform;
 100                 const ViewContactOfE3dScene* pVCOfE3DScene = tryToFindVCOfE3DScene(*this, aInBetweenObjectTransform);
 101
 102                 if(pVCOfE3DScene)
 103                 {
 104                     basegfx::B3DVector aLightNormal;
 105                     const double fShadowSlant(pVCOfE3DScene->getSdrSceneAttribute().getShadowSlant());
 106                     const basegfx::B3DRange& rAllContentRange = pVCOfE3DScene->getAllContentRange3D();
 107                     drawinglayer::geometry::ViewInformation3D aViewInformation3D(pVCOfE3DScene->getViewInformation3D());
 108
 109                     if(pVCOfE3DScene->getSdrLightingAttribute().getLightVector().size())
 110                     {
 111                         // get light normal from first light and normalize
 112                         aLightNormal = pVCOfE3DScene->getSdrLightingAttribute().getLightVector()[0].getDirection();
 113                         aLightNormal.normalize();
 114                     }
 115
 116                     if(!aInBetweenObjectTransform.isIdentity())
 117                     {
 118                         // if aInBetweenObjectTransform is used, create combined ViewInformation3D which
 119                         // contains the correct object transformation for the embedded 3d object
 120                         aViewInformation3D = drawinglayer::geometry::ViewInformation3D(
 121                             aViewInformation3D.getObjectTransformation() * aInBetweenObjectTransform,
 122                             aViewInformation3D.getOrientation(),
 123                             aViewInformation3D.getProjection(),
 124                             aViewInformation3D.getDeviceToView(),
 125                             aViewInformation3D.getViewTime(),
 126                             aViewInformation3D.getExtendedInformationSequence());
 127                     }
 128
 129                     // create embedded 2d primitive and add. LightNormal and ShadowSlant are needed for evtl.
 130                     // 3D shadow extraction for correct B2DRange calculation (shadow is part of the object)
 131                     const drawinglayer::primitive2d::Primitive2DReference xReference(new drawinglayer::primitive2d::Embedded3DPrimitive2D(
 132                         rxContent3D,
 133                         pVCOfE3DScene->getObjectTransformation(),
 134                         aViewInformation3D,
 135                         aLightNormal,
 136                         fShadowSlant,
 137                         rAllContentRange));
 138
 139                     xRetval = drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
 140                 }
 141             }
 142
 143             return xRetval;
 144         }
 145
 146         ViewContactOfE3d::ViewContactOfE3d(E3dObject& rSdrObject)
 147         :       ViewContactOfSdrObj(rSdrObject)
 148         {
 149         }
 150
 151         ViewContactOfE3d::~ViewContactOfE3d()
 152         {
 153         }
 154
 155         drawinglayer::primitive3d::Primitive3DSequence ViewContactOfE3d::getVIP3DSWithoutObjectTransform() const
 156         {
 157             // local up-to-date checks. Create new list and compare.
 158             drawinglayer::primitive3d::Primitive3DSequence xNew(createViewIndependentPrimitive3DSequence());
 159
 160             if(!drawinglayer::primitive3d::arePrimitive3DSequencesEqual(mxViewIndependentPrimitive3DSequence, xNew))
 161             {
 162                 // has changed, copy content
 163                 const_cast< ViewContactOfE3d* >(this)->mxViewIndependentPrimitive3DSequence = xNew;
 164             }
 165
 166             // return current Primitive2DSequence
 167             return mxViewIndependentPrimitive3DSequence;
 168         }
 169
 170         drawinglayer::primitive3d::Primitive3DSequence ViewContactOfE3d::getViewIndependentPrimitive3DSequence() const
 171         {
 172             // get sequence without object transform
 173             drawinglayer::primitive3d::Primitive3DSequence xRetval(getVIP3DSWithoutObjectTransform());
 174
 175             if(xRetval.hasElements())
 176             {
 177                 // add object transform if it's used
 178                 const basegfx::B3DHomMatrix& rObjectTransform(GetE3dObject().GetTransform());
 179
 180                 if(!rObjectTransform.isIdentity())
 181                 {
 182                     const drawinglayer::primitive3d::Primitive3DReference xReference(new drawinglayer::primitive3d::TransformPrimitive3D(
 183                         rObjectTransform, xRetval));
 184                     return drawinglayer::primitive3d::Primitive3DSequence(&xReference, 1);
 185                 }
 186             }
 187
 188             // return current Primitive2DSequence
 189             return xRetval;
 190         }
 191
 192         drawinglayer::primitive2d::Primitive2DSequence ViewContactOfE3d::createViewIndependentPrimitive2DSequence() const
 193         {
 194             // also need to create a 2D embedding when the view-independent part is requested,
 195             // see view-dependent part in ViewObjectContactOfE3d::createPrimitive2DSequence
 196             // get 3d primitive vector, isPrimitiveVisible() is done in 3d creator
 197             return impCreateWithGivenPrimitive3DSequence(getViewIndependentPrimitive3DSequence());
 198         }
 199
 200         ViewObjectContact& ViewContactOfE3d::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
 201         {
 202             ViewObjectContact* pRetval = new ViewObjectContactOfE3d(rObjectContact, *this);
 203             DBG_ASSERT(pRetval, "ViewContactOfE3d::CreateObjectSpecificViewObjectContact() failed (!)");
 204
 205             return *pRetval;
 206         }
 207
 208         drawinglayer::attribute::SdrLineAttribute* ViewContactOfE3d::impCreateFallbackLineAttribute(const basegfx::BColor& rBColor) const
 209         {
 210             static bool bFallbackToCreateAsLineForTest(false);
 211
 212             if(bFallbackToCreateAsLineForTest)
 213             {
 214                 return new drawinglayer::attribute::SdrLineAttribute(rBColor);
 215             }
 216             else
 217             {
 218                 return 0;
 219             }
 220         }
 221     } // end of namespace contact
 222 } // end of namespace sdr
 223
 224 //////////////////////////////////////////////////////////////////////////////
 225 // eof