SoSelection.h

#ifndef COIN_SOSELECTION_H
#define COIN_SOSELECTION_H
 
/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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 * this list of conditions and the following disclaimer.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
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#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/lists/SoPathList.h>
 
class SoSelection;
class SoPath;
class SoPickedPoint;
class SoCallbackList;
 
typedef void SoSelectionPathCB(void * data, SoPath * path);
typedef void SoSelectionClassCB(void * data, SoSelection * sel);
typedef SoPath * SoSelectionPickCB(void * data, const SoPickedPoint * pick);
 
class COIN_DLL_API SoSelection : public SoSeparator {
  typedef SoSeparator inherited;
 
  SO_NODE_HEADER(SoSelection);
 
public:
  static void initClass(void);
  SoSelection(void);
 
  enum Policy {
    SINGLE, TOGGLE, SHIFT, DISABLE
  };
 
  SoSFEnum policy;
 
  SoSelection(const int nChildren);
 
  void select(const SoPath * path);
  void select(SoNode *node);
  void deselect(const SoPath * path);
  void deselect(const int which);
  void deselect(SoNode * node);
  void toggle(const SoPath * path);
  void toggle(SoNode * node);
  SbBool isSelected(const SoPath * path) const;
  SbBool isSelected(SoNode * node) const;
  void deselectAll(void);
  int getNumSelected(void) const;
  const SoPathList * getList(void) const;
  SoPath * getPath(const int index) const;
  SoPath * operator[](const int i) const;
  void addSelectionCallback(SoSelectionPathCB * f, void * userData = NULL);
  void removeSelectionCallback(SoSelectionPathCB * f, void * userData = NULL);
  void addDeselectionCallback(SoSelectionPathCB * f, void * userData = NULL);
  void removeDeselectionCallback(SoSelectionPathCB * f,
                                 void * userData = NULL);
  void addStartCallback(SoSelectionClassCB * f, void * userData = NULL);
  void removeStartCallback(SoSelectionClassCB * f, void * userData = NULL);
  void addFinishCallback(SoSelectionClassCB * f, void * userData = NULL);
  void removeFinishCallback(SoSelectionClassCB * f, void * userData = NULL);
  void setPickFilterCallback(SoSelectionPickCB * f, void * userData = NULL,
                             const SbBool callOnlyIfSelectable = TRUE);
  void setPickMatching(const SbBool pickMatching);
  SbBool isPickMatching(void) const;
  SbBool getPickMatching(void) const;
  void addChangeCallback(SoSelectionClassCB * f, void * userData = NULL);
  void removeChangeCallback(SoSelectionClassCB * f, void * userData = NULL);
 
protected:
  virtual ~SoSelection();
 
  void invokeSelectionPolicy(SoPath *path, SbBool shiftDown);
  void performSingleSelection(SoPath *path);
  void performToggleSelection(SoPath *path);
  SoPath * copyFromThis(const SoPath * path) const;
  void addPath(SoPath *path);
  void removePath(const int which);
  int findPath(const SoPath *path) const;
 
  virtual void handleEvent(SoHandleEventAction * action);
 
protected: // unfortunately only protected in OIV
 
  SoPathList selectionList;
 
  SoCallbackList *selCBList;
  SoCallbackList *deselCBList;
  SoCallbackList *startCBList;
  SoCallbackList *finishCBList;
 
  SoSelectionPickCB *pickCBFunc;
  void *pickCBData;
  SbBool callPickCBOnlyIfSelectable;
 
  SoCallbackList *changeCBList;
 
  SoPath *mouseDownPickPath;
  SbBool pickMatching;
 
private:
  void init();
  SoPath *searchNode(SoNode * node) const;
  SoPath *getSelectionPath(SoHandleEventAction *action,
                           SbBool &ignorepick, SbBool &haltaction);
};
 
#endif // !COIN_SOSELECTION_H