1 #ifndef COIN_SOEXTSELECTION_H
2 #define COIN_SOEXTSELECTION_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
6  * All rights reserved.
7  *
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13  * this list of conditions and the following disclaimer.
14  *
15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
18  *
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20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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34 \**************************************************************************/
35 
36 #include <Inventor/nodes/SoSubNode.h>
37 #include <Inventor/nodes/SoSelection.h>
38 #include <Inventor/fields/SoSFEnum.h>
39 #include <cstddef> // NULL
40 
41 #ifndef COIN_INTERNAL
42 #include <Inventor/actions/SoCallbackAction.h>
43 #endif // !COIN_INTERNAL
44 
45 class SbColor;
46 class SbVec3f;
47 class SbVec2f;
48 class SbVec2s;
49 class SbViewportRegion;
50 class SoPrimitiveVertex;
51 
52 // This shouldn't strictly be necessary, but the OSF1/cxx compiler
53 // complains if this is left out, while using the "friend class
54 // SoExtSelectionP" statement in the class definition.
55 class SoExtSelectionP;
56 
57 
58 typedef SbBool SoExtSelectionTriangleCB(void * userdata,
59                                         SoCallbackAction * action,
60                                         const SoPrimitiveVertex * v1,
61                                         const SoPrimitiveVertex * v2,
62                                         const SoPrimitiveVertex * v3);
63 
64 typedef SbBool SoExtSelectionLineSegmentCB(void * userdata,
65                                            SoCallbackAction * action,
66                                            const SoPrimitiveVertex * v1,
67                                            const SoPrimitiveVertex * v2);
68 
69 typedef SbBool SoExtSelectionPointCB(void * userdata,
70                                      SoCallbackAction * action,
71                                      const SoPrimitiveVertex * v1);
72 
73 typedef SoPath * SoLassoSelectionFilterCB(void * userdata, const SoPath * path);
74 
75 
76 class COIN_DLL_API SoExtSelection : public SoSelection {
77   typedef SoSelection inherited;
78 
79   SO_NODE_HEADER(SoExtSelection);
80 
81 public:
82   static void initClass(void);
83   SoExtSelection(void);
84 
85   enum LassoType {
86     NOLASSO, LASSO, RECTANGLE
87   };
88 
89   enum LassoPolicy {
90     FULL_BBOX, PART_BBOX, FULL, PART
91   };
92 
93   enum LassoMode {
94     ALL_SHAPES,
95     VISIBLE_SHAPES
96   };
97 
98   SoSFEnum lassoType;
99   SoSFEnum lassoPolicy;
100   SoSFEnum lassoMode;
101 
102   void useOverlay(SbBool overlay = TRUE);
103   SbBool isUsingOverlay(void);
104   SoSeparator * getOverlaySceneGraph(void);
105   void setOverlayLassoColorIndex(const int index);
106   int getOverlayLassoColorIndex(void);
107   void setLassoColor(const SbColor & color);
108   const SbColor & getLassoColor(void);
109   void setLassoWidth(const float width);
110   float getLassoWidth(void);
111   void setOverlayLassoPattern(const unsigned short pattern);
112   unsigned short getOverlayLassoPattern(void);
113   void animateOverlayLasso(const SbBool animate = TRUE);
114   SbBool isOverlayLassoAnimated(void);
115 
116   virtual void handleEvent(SoHandleEventAction * action);
117   virtual void GLRenderBelowPath(SoGLRenderAction * action);
118 
119   void select(SoNode * root, int numcoords, SbVec2f * lasso,
120               const SbViewportRegion & vp, SbBool shiftpolicy);
121   void select(SoNode * root, int numcoords, SbVec3f * lasso,
122               const SbViewportRegion & vp, SbBool shiftkeypolicy);
123   const SbVec2s * getLassoCoordsDC(int & numCoords);
124   const SbVec3f * getLassoCoordsWC(int & numCoords);
125   const SoPathList & getSelectionPathList() const;
126 
127   void setLassoFilterCallback(SoLassoSelectionFilterCB * f, void * userdata = NULL,
128                               const SbBool callonlyifselectable = TRUE);
129 
130   void setTriangleFilterCallback(SoExtSelectionTriangleCB * func,
131                                  void * userdata = NULL);
132   void setLineSegmentFilterCallback(SoExtSelectionLineSegmentCB * func,
133                                     void * userdata = NULL);
134   void setPointFilterCallback(SoExtSelectionPointCB * func,
135                               void * userdata = NULL);
136   SbBool wasShiftDown(void) const;
137 
138 protected:
139   virtual ~SoExtSelection();
140 
141 private:
142   void draw(SoGLRenderAction * action);
143 
144   friend class SoExtSelectionP;
145   class SoExtSelectionP * pimpl;
146 };
147 
148 #endif // !COIN_SOEXTSELECTION_H
149