svx/source/svdraw/sdrhittesthelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
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  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <svx/sdrhittesthelper.hxx>
  22 #include <svx/obj3d.hxx>
  23 #include <svx/helperhittest3d.hxx>
  24 #include <svx/sdrpagewindow.hxx>
  25 #include <svx/sdr/contact/viewobjectcontact.hxx>
  26 #include <svx/sdr/contact/displayinfo.hxx>
  27 #include <svx/sdr/contact/objectcontact.hxx>
  28 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
  29 #include <svx/svdpagv.hxx>
  30 #include <svx/sdr/contact/viewcontact.hxx>
  31 #include <svx/svdmodel.hxx>
  32
  33
  34 // #i101872# new Object HitTest as View-tooling
  35
  36 SdrObject* SdrObjectPrimitiveHit(
  37     const SdrObject& rObject,
  38     const Point& rPnt,
  39     sal_uInt16 nTol,
  40     const SdrPageView& rSdrPageView,
  41     const SetOfByte* pVisiLayer,
  42     bool bTextOnly)
  43 {
  44     SdrObject* pResult = 0;
  45
  46     if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount())
  47     {
  48         // group or scene with content. Single 3D objects also have a
  49         // true == rObject.GetSubList(), but no content
  50         pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
  51     }
  52     else
  53     {
  54         if( rObject.IsVisible() && (!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer())))
  55         {
  56             // single object, 3d object, empty scene or empty group. Check if
  57             // it's a single 3D object
  58             const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject);
  59
  60             if(pE3dCompoundObject)
  61             {
  62                 const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
  63
  64                 if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject))
  65                 {
  66                     pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject);
  67                 }
  68             }
  69             else
  70             {
  71                 // not a single 3D object; Check in first PageWindow using prmitives (only SC
  72                 // with split views uses multiple PageWindows nowadays)
  73                 if(rSdrPageView.PageWindowCount())
  74                 {
  75                     const double fLogicTolerance(nTol);
  76                     const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
  77                     const sdr::contact::ViewObjectContact& rVOC = rObject.GetViewContact().GetViewObjectContact(
  78                         rSdrPageView.GetPageWindow(0)->GetObjectContact());
  79
  80                     if(ViewObjectContactPrimitiveHit(rObject, rVOC, aHitPosition, fLogicTolerance, bTextOnly))
  81                     {
  82                           pResult = const_cast< SdrObject* >(&rObject);
  83                     }
  84                 }
  85             }
  86         }
  87     }
  88
  89     return pResult;
  90 }
  91
  92
  93
  94 SdrObject* SdrObjListPrimitiveHit(
  95     const SdrObjList& rList,
  96     const Point& rPnt,
  97     sal_uInt16 nTol,
  98     const SdrPageView& rSdrPageView,
  99     const SetOfByte* pVisiLayer,
 100     bool bTextOnly)
 101 {
 102     size_t nObjNum(rList.GetObjCount());
 103     SdrObject* pRetval = 0;
 104
 105     while(!pRetval && nObjNum > 0)
 106     {
 107         nObjNum--;
 108         SdrObject* pObj = rList.GetObj(nObjNum);
 109
 110         pRetval = SdrObjectPrimitiveHit(*pObj, rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
 111     }
 112
 113     return pRetval;
 114 }
 115
 116
 117
 118 bool ViewObjectContactPrimitiveHit(
 119     const SdrObject& rObject,
 120     const sdr::contact::ViewObjectContact& rVOC,
 121     const basegfx::B2DPoint& rHitPosition,
 122     double fLogicHitTolerance,
 123     bool bTextOnly)
 124 {
 125     basegfx::B2DRange aObjectRange(rVOC.getObjectRange());
 126
 127     if(!aObjectRange.isEmpty())
 128     {
 129         // first do a rough B2DRange based HitTest; do not forget to
 130         // include the HitTolerance if given
 131         if(basegfx::fTools::more(fLogicHitTolerance, 0.0))
 132         {
 133             aObjectRange.grow(fLogicHitTolerance);
 134         }
 135
 136         if(aObjectRange.isInside(rHitPosition))
 137         {
 138             // get primitive sequence
 139             sdr::contact::DisplayInfo aDisplayInfo;
 140             const drawinglayer::primitive2d::Primitive2DSequence& rSequence(rVOC.getPrimitive2DSequence(aDisplayInfo));
 141
 142             if(rSequence.hasElements())
 143             {
 144                 // create a HitTest processor
 145                 const drawinglayer::geometry::ViewInformation2D& rViewInformation2D = rVOC.GetObjectContact().getViewInformation2D();
 146                 drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
 147                     rViewInformation2D,
 148                     rHitPosition,
 149                     fLogicHitTolerance,
 150                     bTextOnly,
 151                     rObject.GetModel()->isTiledRendering());
 152
 153                 // feed it with the primitives
 154                 aHitTestProcessor2D.process(rSequence);
 155
 156                 // deliver result
 157                 return aHitTestProcessor2D.getHit();
 158             }
 159         }
 160     }
 161
 162     return false;
 163 }
 164
 165 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */