SoExtSelection.h

#ifndef COIN_SOEXTSELECTION_H
#define COIN_SOEXTSELECTION_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
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 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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\**************************************************************************/
 
#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoSelection.h>
#include <Inventor/fields/SoSFEnum.h>
#include <cstddef> // NULL
 
#ifndef COIN_INTERNAL
#include <Inventor/actions/SoCallbackAction.h>
#endif // !COIN_INTERNAL
 
class SbColor;
class SbVec3f;
class SbVec2f;
class SbVec2s;
class SbViewportRegion;
class SoPrimitiveVertex;
 
// This shouldn't strictly be necessary, but the OSF1/cxx compiler
// complains if this is left out, while using the "friend class
// SoExtSelectionP" statement in the class definition.
class SoExtSelectionP;
 
 
typedef SbBool SoExtSelectionTriangleCB(void * userdata,
                                        SoCallbackAction * action,
                                        const SoPrimitiveVertex * v1,
                                        const SoPrimitiveVertex * v2,
                                        const SoPrimitiveVertex * v3);
 
typedef SbBool SoExtSelectionLineSegmentCB(void * userdata,
                                           SoCallbackAction * action,
                                           const SoPrimitiveVertex * v1,
                                           const SoPrimitiveVertex * v2);
 
typedef SbBool SoExtSelectionPointCB(void * userdata,
                                     SoCallbackAction * action,
                                     const SoPrimitiveVertex * v1);
 
typedef SoPath * SoLassoSelectionFilterCB(void * userdata, const SoPath * path);
 
 
class COIN_DLL_API SoExtSelection : public SoSelection {
  typedef SoSelection inherited;
 
  SO_NODE_HEADER(SoExtSelection);
 
public:
  static void initClass(void);
  SoExtSelection(void);
 
  enum LassoType {
    NOLASSO, LASSO, RECTANGLE
  };
 
  enum LassoPolicy {
    FULL_BBOX, PART_BBOX, FULL, PART
  };
 
  enum LassoMode {
    ALL_SHAPES,
    VISIBLE_SHAPES
  };
 
  SoSFEnum lassoType;
  SoSFEnum lassoPolicy;
  SoSFEnum lassoMode;
 
  void useOverlay(SbBool overlay = TRUE);
  SbBool isUsingOverlay(void);
  SoSeparator * getOverlaySceneGraph(void);
  void setOverlayLassoColorIndex(const int index);
  int getOverlayLassoColorIndex(void);
  void setLassoColor(const SbColor & color);
  const SbColor & getLassoColor(void);
  void setLassoWidth(const float width);
  float getLassoWidth(void);
  void setOverlayLassoPattern(const unsigned short pattern);
  unsigned short getOverlayLassoPattern(void);
  void animateOverlayLasso(const SbBool animate = TRUE);
  SbBool isOverlayLassoAnimated(void);
 
  virtual void handleEvent(SoHandleEventAction * action);
  virtual void GLRenderBelowPath(SoGLRenderAction * action);
 
  void select(SoNode * root, int numcoords, SbVec2f * lasso, 
              const SbViewportRegion & vp, SbBool shiftpolicy);
  void select(SoNode * root, int numcoords, SbVec3f * lasso,
              const SbViewportRegion & vp, SbBool shiftkeypolicy);
  const SbVec2s * getLassoCoordsDC(int & numCoords);
  const SbVec3f * getLassoCoordsWC(int & numCoords);
  const SoPathList & getSelectionPathList() const;
 
  void setLassoFilterCallback(SoLassoSelectionFilterCB * f, void * userdata = NULL,
                              const SbBool callonlyifselectable = TRUE);
 
  void setTriangleFilterCallback(SoExtSelectionTriangleCB * func,
                                 void * userdata = NULL);
  void setLineSegmentFilterCallback(SoExtSelectionLineSegmentCB * func,
                                    void * userdata = NULL);
  void setPointFilterCallback(SoExtSelectionPointCB * func,
                              void * userdata = NULL);
  SbBool wasShiftDown(void) const;
 
protected:
  virtual ~SoExtSelection();
 
private:
  void draw(SoGLRenderAction * action);
 
  friend class SoExtSelectionP;
  class SoExtSelectionP * pimpl;
};
 
#endif // !COIN_SOEXTSELECTION_H