LibreOffice Module svx (master)  1
sdrhittesthelper.cxx
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19 
20 
21 #include <svx/sdrhittesthelper.hxx>
22 #include <svx/obj3d.hxx>
23 #include <svx/helperhittest3d.hxx>
24 #include <svx/svdpage.hxx>
25 #include <svx/sdrpagewindow.hxx>
30 #include <svx/svdpagv.hxx>
32 
33 
34 // #i101872# new Object HitTest as View-tooling
35 
37  const SdrObject& rObject,
38  const Point& rPnt,
39  sal_uInt16 nTol,
40  const SdrPageView& rSdrPageView,
41  const SdrLayerIDSet* pVisiLayer,
42  bool bTextOnly,
44 {
45  SdrObject* pResult = nullptr;
46 
47  if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount())
48  {
49  // group or scene with content. Single 3D objects also have a
50  // true == rObject.GetSubList(), but no content
51  pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
52  }
53  else
54  {
55  if( rObject.IsVisible() && (!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer())))
56  {
57  // single object, 3d object, empty scene or empty group. Check if
58  // it's a single 3D object
59  const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject);
60 
61  if(pE3dCompoundObject)
62  {
63  const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
64 
65  if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject))
66  {
67  pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject);
68  }
69  }
70  else
71  {
72  // not a single 3D object; Check in first PageWindow using primitives (only SC
73  // with split views uses multiple PageWindows nowadays)
74  if(rSdrPageView.PageWindowCount())
75  {
76  const double fLogicTolerance(nTol);
77  const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
79  rSdrPageView.GetPageWindow(0)->GetObjectContact());
80 
81  if(ViewObjectContactPrimitiveHit(rVOC, aHitPosition, fLogicTolerance, bTextOnly, pHitContainer))
82  {
83  pResult = const_cast< SdrObject* >(&rObject);
84  }
85  }
86  }
87  }
88  }
89 
90  return pResult;
91 }
92 
93 
95  const SdrObjList& rList,
96  const Point& rPnt,
97  sal_uInt16 nTol,
98  const SdrPageView& rSdrPageView,
99  const SdrLayerIDSet* pVisiLayer,
100  bool bTextOnly)
101 {
102  size_t nObjNum(rList.GetObjCount());
103  SdrObject* pRetval = nullptr;
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 
119  const basegfx::B2DPoint& rHitPosition,
120  double fLogicHitTolerance,
121  bool bTextOnly,
123 {
124  basegfx::B2DRange aObjectRange(rVOC.getObjectRange());
125 
126  if(!aObjectRange.isEmpty())
127  {
128  // first do a rough B2DRange based HitTest; do not forget to
129  // include the HitTolerance if given
130  if(basegfx::fTools::more(fLogicHitTolerance, 0.0))
131  {
132  aObjectRange.grow(fLogicHitTolerance);
133  }
134 
135  if(aObjectRange.isInside(rHitPosition))
136  {
137  // get primitive sequence
138  sdr::contact::DisplayInfo aDisplayInfo;
139  const drawinglayer::primitive2d::Primitive2DContainer& rSequence(rVOC.getPrimitive2DSequence(aDisplayInfo));
140 
141  if(!rSequence.empty())
142  {
143  // create a HitTest processor
146  rViewInformation2D,
147  rHitPosition,
148  fLogicHitTolerance,
149  bTextOnly);
150 
151  // ask for HitStack
152  aHitTestProcessor2D.collectHitStack(true);
153 
154  // feed it with the primitives
155  aHitTestProcessor2D.process(rSequence);
156 
157  // deliver result
158  if (aHitTestProcessor2D.getHit())
159  {
160  if (pHitContainer)
161  {
162  // fetch HitStack primitives if requested
163  *pHitContainer = aHitTestProcessor2D.getHitStack();
164  }
165 
166  return true;
167  }
168  }
169  }
170  }
171 
172  return false;
173 }
174 
175 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
static bool more(const double &rfValA, const double &rfValB)
SdrObject * GetObj(size_t nNum) const
Definition: svdpage.cxx:758
size_t GetObjCount() const
Definition: svdpage.cxx:752
ViewObjectContact & GetViewObjectContact(ObjectContact &rObjectContact)
Definition: viewcontact.cxx:71
const primitive2d::Primitive2DContainer & getHitStack() const
virtual SdrObjList * GetSubList() const
Definition: svdobj.cxx:647
sdr::contact::ViewContact & GetViewContact() const
Definition: svdobj.cxx:245
drawinglayer::primitive2d::Primitive2DContainer const & getPrimitive2DSequence(const DisplayInfo &rDisplayInfo) const
bool IsVisible() const
Definition: svdobj.hxx:805
SdrPageWindow * GetPageWindow(sal_uInt32 nIndex) const
Definition: svdpagv.cxx:81
SdrObject * SdrObjectPrimitiveHit(const SdrObject &rObject, const Point &rPnt, sal_uInt16 nTol, const SdrPageView &rSdrPageView, const SdrLayerIDSet *pVisiLayer, bool bTextOnly, drawinglayer::primitive2d::Primitive2DContainer *pHitContainer)
void grow(double fValue)
SdrObject * SdrObjListPrimitiveHit(const SdrObjList &rList, const Point &rPnt, sal_uInt16 nTol, const SdrPageView &rSdrPageView, const SdrLayerIDSet *pVisiLayer, bool bTextOnly)
ObjectContact & GetObjectContact() const
const drawinglayer::geometry::ViewInformation2D & getViewInformation2D() const
void process(const primitive2d::Primitive2DContainer &rSource)
const sdr::contact::ObjectContact & GetObjectContact() const
Abstract DrawObject.
Definition: svdobj.hxx:312
bool checkHitSingle3DObject(const basegfx::B2DPoint &rPoint, const E3dCompoundObject &rCandidate)
support for checking if the single given 3d object is hit at position
virtual SdrLayerID GetLayer() const
Definition: svdobj.cxx:577
bool IsSet(SdrLayerID a) const
Definition: svdsob.hxx:66
bool ViewObjectContactPrimitiveHit(const sdr::contact::ViewObjectContact &rVOC, const basegfx::B2DPoint &rHitPosition, double fLogicHitTolerance, bool bTextOnly, drawinglayer::primitive2d::Primitive2DContainer *pHitContainer)
const basegfx::B2DRange & getObjectRange() const
sal_uInt32 PageWindowCount() const
Definition: svdpagv.hxx:94