xref: /AOO41X/main/svx/source/svdraw/sdrhittesthelper.cxx (revision f6e50924346d0b8c0b07c91832a97665dd718b0c)
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16  * KIND, either express or implied.  See the License for the
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svx.hxx"
26 
27 #include <svx/sdrhittesthelper.hxx>
28 #include <svx/obj3d.hxx>
29 #include <svx/helperhittest3d.hxx>
30 #include <svx/sdrpagewindow.hxx>
31 #include <svx/sdr/contact/viewobjectcontact.hxx>
32 #include <svx/sdr/contact/displayinfo.hxx>
33 #include <svx/sdr/contact/objectcontact.hxx>
34 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
35 #include <svx/svdpagv.hxx>
36 #include <svx/sdr/contact/viewcontact.hxx>
37 
38 ////////////////////////////////////////////////////////////////////////////////////////////////////
39 // #i101872# new Object HitTest as View-tooling
40 
SdrObjectPrimitiveHit(const SdrObject & rObject,const Point & rPnt,sal_uInt16 nTol,const SdrPageView & rSdrPageView,const SetOfByte * pVisiLayer,bool bTextOnly)41 SdrObject* SdrObjectPrimitiveHit(
42     const SdrObject& rObject,
43     const Point& rPnt,
44     sal_uInt16 nTol,
45     const SdrPageView& rSdrPageView,
46     const SetOfByte* pVisiLayer,
47     bool bTextOnly)
48 {
49     SdrObject* pResult = 0;
50 
51     if(rObject.GetSubList() && rObject.GetSubList()->GetObjCount())
52     {
53         // group or scene with content. Single 3D objects also have a
54         // true == rObject.GetSubList(), but no content
55         pResult = SdrObjListPrimitiveHit(*rObject.GetSubList(), rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
56     }
57     else
58     {
59         if( rObject.IsVisible() && (!pVisiLayer || pVisiLayer->IsSet(rObject.GetLayer())))
60         {
61             // single object, 3d object, empty scene or empty group. Check if
62             // it's a single 3D object
63             const E3dCompoundObject* pE3dCompoundObject = dynamic_cast< const E3dCompoundObject* >(&rObject);
64 
65             if(pE3dCompoundObject)
66             {
67                 const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
68 
69                 if(checkHitSingle3DObject(aHitPosition, *pE3dCompoundObject))
70                 {
71                     pResult = const_cast< E3dCompoundObject* >(pE3dCompoundObject);
72                 }
73             }
74             else
75             {
76                 // not a single 3D object; Check in first PageWindow using prmitives (only SC
77                 // with split views uses multiple PageWindows nowadays)
78                 if(rSdrPageView.PageWindowCount())
79                 {
80                     const double fLogicTolerance(nTol);
81                     const basegfx::B2DPoint aHitPosition(rPnt.X(), rPnt.Y());
82                     const sdr::contact::ViewObjectContact& rVOC = rObject.GetViewContact().GetViewObjectContact(
83                         rSdrPageView.GetPageWindow(0)->GetObjectContact());
84 
85                     if(ViewObjectContactPrimitiveHit(rVOC, aHitPosition, fLogicTolerance, bTextOnly))
86                     {
87                         pResult = const_cast< SdrObject* >(&rObject);
88                     }
89                 }
90             }
91         }
92     }
93 
94     return pResult;
95 }
96 
97 /////////////////////////////////////////////////////////////////////
98 
SdrObjListPrimitiveHit(const SdrObjList & rList,const Point & rPnt,sal_uInt16 nTol,const SdrPageView & rSdrPageView,const SetOfByte * pVisiLayer,bool bTextOnly)99 SdrObject* SdrObjListPrimitiveHit(
100     const SdrObjList& rList,
101     const Point& rPnt,
102     sal_uInt16 nTol,
103     const SdrPageView& rSdrPageView,
104     const SetOfByte* pVisiLayer,
105     bool bTextOnly)
106 {
107     sal_uInt32 nObjNum(rList.GetObjCount());
108     SdrObject* pRetval = 0;
109 
110     while(!pRetval && nObjNum > 0)
111     {
112         nObjNum--;
113         SdrObject* pObj = rList.GetObj(nObjNum);
114 
115         pRetval = SdrObjectPrimitiveHit(*pObj, rPnt, nTol, rSdrPageView, pVisiLayer, bTextOnly);
116     }
117 
118     return pRetval;
119 }
120 
121 /////////////////////////////////////////////////////////////////////
122 
ViewObjectContactPrimitiveHit(const sdr::contact::ViewObjectContact & rVOC,const basegfx::B2DPoint & rHitPosition,double fLogicHitTolerance,bool bTextOnly)123 bool ViewObjectContactPrimitiveHit(
124     const sdr::contact::ViewObjectContact& rVOC,
125     const basegfx::B2DPoint& rHitPosition,
126     double fLogicHitTolerance,
127     bool bTextOnly)
128 {
129     basegfx::B2DRange aObjectRange(rVOC.getObjectRange());
130 
131     if(!aObjectRange.isEmpty())
132     {
133         // first do a rough B2DRange based HitTest; do not forget to
134         // include the HitTolerance if given
135         if(basegfx::fTools::more(fLogicHitTolerance, 0.0))
136         {
137             aObjectRange.grow(fLogicHitTolerance);
138         }
139 
140         if(aObjectRange.isInside(rHitPosition))
141         {
142             // get primitive sequence
143             sdr::contact::DisplayInfo aDisplayInfo;
144             const drawinglayer::primitive2d::Primitive2DSequence& rSequence(rVOC.getPrimitive2DSequence(aDisplayInfo));
145 
146             if(rSequence.hasElements())
147             {
148                 // create a HitTest processor
149                 const drawinglayer::geometry::ViewInformation2D& rViewInformation2D = rVOC.GetObjectContact().getViewInformation2D();
150                 drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
151                     rViewInformation2D,
152                     rHitPosition,
153                     fLogicHitTolerance,
154                     bTextOnly);
155 
156                 // feed it with the primitives
157                 aHitTestProcessor2D.process(rSequence);
158 
159                 // deliver result
160                 return aHitTestProcessor2D.getHit();
161             }
162         }
163     }
164 
165     return false;
166 }
167 
168 ////////////////////////////////////////////////////////////////////////////////////////////////////
169 // eof
170