Source

Coin / include / Inventor / nodes / SoSelection.h

Lars J. Aas 6f64ef8 


Morten Eriksen 08431c9 
Marius Kintel 3ba6b41 




























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#ifndef COIN_SOSELECTION_H
#define COIN_SOSELECTION_H

/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/

#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
  };

  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