svx/source/svdraw/sdrhittesthelper.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_svx.hxx"
  33
  34 #include <svx/sdrhittesthelper.hxx>
  35 #include <svx/obj3d.hxx>
  36 #include <svx/helperhittest3d.hxx>
  37 #include <svx/sdrpagewindow.hxx>
  38 #include <svx/sdr/contact/viewobjectcontact.hxx>
  39 #include <svx/sdr/contact/displayinfo.hxx>
  40 #include <svx/sdr/contact/objectcontact.hxx>
  41 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
  42 #include <svx/svdpagv.hxx>
  43 #include <svx/sdr/contact/viewcontact.hxx>
  44
  45 ////////////////////////////////////////////////////////////////////////////////////////////////////
  46 // #i101872# new Object HitTest as View-tooling
  47
  48 SdrObject* SdrObjectPrimitiveHit(
  49     const SdrObject& rObject,
  50     const Point& rPnt,
  51     sal_uInt16 nTol,
  52     const SdrPageView& rSdrPageView,
  53     const SetOfByte* pVisiLayer,
  54     bool bTextOnly)
  55 {
  56     SdrObject* pResult = 0;
  57
  58     if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount())
  59     {
  60         // group or scene with content. Single 3D objects also have a
  61         // true == rObject.GetSubList(), but no content
  62         pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
  63     }
  64     else
  65     {
  66         if(!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer()))
  67         {
  68             // single object, 3d object, empty scene or empty group. Check if
  69             // it's a single 3D object
  70             const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject);
  71
  72             if(pE3dCompoundObject)
  73             {
  74                 const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
  75
  76                 if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject))
  77                 {
  78                     pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject);
  79                 }
  80             }
  81             else
  82             {
  83                 // not a single 3D object; Check in first PageWindow using prmitives (only SC
  84                 // with split views uses multiple PageWindows nowadays)
  85                 if(rSdrPageView.PageWindowCount())
  86                 {
  87                     const double fLogicTolerance(nTol);
  88                     const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
  89                     const sdr::contact::ViewObjectContact& rVOC = rObject.GetViewContact().GetViewObjectContact(
  90                         rSdrPageView.GetPageWindow(0)->GetObjectContact());
  91
  92                     if(ViewObjectContactPrimitiveHit(rVOC, aHitPosition, fLogicTolerance, bTextOnly))
  93                     {
  94                           pResult = const_cast< SdrObject* >(&rObject);
  95                     }
  96                 }
  97             }
  98         }
  99     }
 100
 101     return pResult;
 102 }
 103
 104 /////////////////////////////////////////////////////////////////////
 105
 106 SdrObject* SdrObjListPrimitiveHit(
 107     const SdrObjList& rList,
 108     const Point& rPnt,
 109     sal_uInt16 nTol,
 110     const SdrPageView& rSdrPageView,
 111     const SetOfByte* pVisiLayer,
 112     bool bTextOnly)
 113 {
 114     sal_uInt32 nObjNum(rList.GetObjCount());
 115     SdrObject* pRetval = 0;
 116
 117     while(!pRetval && nObjNum > 0)
 118     {
 119         nObjNum--;
 120         SdrObject* pObj = rList.GetObj(nObjNum);
 121
 122         pRetval = SdrObjectPrimitiveHit(*pObj, rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
 123     }
 124
 125     return pRetval;
 126 }
 127
 128 /////////////////////////////////////////////////////////////////////
 129
 130 bool ViewObjectContactPrimitiveHit(
 131     const sdr::contact::ViewObjectContact& rVOC,
 132     const basegfx::B2DPoint& rHitPosition,
 133     double fLogicHitTolerance,
 134     bool bTextOnly)
 135 {
 136     basegfx::B2DRange aObjectRange(rVOC.getObjectRange());
 137
 138     if(!aObjectRange.isEmpty())
 139     {
 140         // first do a rough B2DRange based HitTest; do not forget to
 141         // include the HitTolerance if given
 142         if(basegfx::fTools::more(fLogicHitTolerance, 0.0))
 143         {
 144             aObjectRange.grow(fLogicHitTolerance);
 145         }
 146
 147         if(aObjectRange.isInside(rHitPosition))
 148         {
 149             // get primitive sequence
 150             sdr::contact::DisplayInfo aDisplayInfo;
 151             const drawinglayer::primitive2d::Primitive2DSequence& rSequence(rVOC.getPrimitive2DSequence(aDisplayInfo));
 152
 153             if(rSequence.hasElements())
 154             {
 155                 // create a HitTest processor
 156                 const drawinglayer::geometry::ViewInformation2D& rViewInformation2D = rVOC.GetObjectContact().getViewInformation2D();
 157                 drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
 158                     rViewInformation2D,
 159                     rHitPosition,
 160                     fLogicHitTolerance,
 161                     bTextOnly);
 162
 163                 // feed it with the primitives
 164                 aHitTestProcessor2D.process(rSequence);
 165
 166                 // deliver result
 167                 return aHitTestProcessor2D.getHit();
 168             }
 169         }
 170     }
 171
 172     return false;
 173 }
 174
 175 ////////////////////////////////////////////////////////////////////////////////////////////////////
 176 // eof