Inventor/nodes/SoGroup.h

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/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
** Modified by : Nick Thompson (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/


#ifndef  _SO_GROUP_
#define  _SO_GROUP_

class SoChildList;
#include <Inventor/nodes/SoNode.h>
#include <Inventor/sensors/SoDataSensor.h>  // for ChangeType
#include <Inventor/fields/SoSFBool.h>

//
//  Class: SoGroup
//
//  Base group node: all children are traversed.
//

class  SoGroup : public SoNode {
  
  SO_NODE_HEADER(SoGroup);
  
 public:
  SoSFBool boundingBoxIgnoring;

  SoGroup();

  SoGroup(int nChildren);

  virtual void addChild(SoNode *child);

  virtual void insertChild(SoNode *child, int newChildIndex);

  virtual SoNode *getChild(int index) const;

  virtual int findChild(const SoNode *child) const;

  virtual int getNumChildren() const;

  virtual void removeChild(int index);

  virtual void removeChild(SoNode *child)
    { removeChild(findChild(child)); }

  virtual void removeAllChildren();

  virtual void replaceChild(int index, SoNode *newChild);

  virtual void replaceChild(SoNode *oldChild, SoNode *newChild)
    { replaceChild(findChild(oldChild), newChild); }

 private:

  inline virtual SbBool isBoundingBoxIgnoring() const
  { return boundingBoxIgnoring.getValue(); }

  // Implement actions
  virtual void doAction(SoAction *action);
  virtual void callback(SoCallbackAction *action);
  virtual void GLRender(SoGLRenderAction *action);
  virtual void getBoundingBox(SoGetBoundingBoxAction *action);
  virtual void getMatrix(SoGetMatrixAction *action);
  virtual void handleEvent(SoHandleEventAction *action);
  virtual void pick(SoPickAction *action);
  virtual void search(SoSearchAction *action);
  virtual void write(SoWriteAction *action);
  virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action);

private:
  static void initClass();
  static void exitClass();

  // Returns pointer to children
  virtual SoChildList *getChildren() const;

  // Internal child management following inheritance of classes.
  virtual void internalRemoveChild( int index )                          { removeChild(index); }
  virtual void internalRemoveChild( SoNode *child  )                     { removeChild(findChild(child)); }
  virtual void internalRemoveAllChildren()                               { removeAllChildren(); }
  virtual void internalAddChild( SoNode *child )                         { addChild(child); }
  virtual int internalFindChild( const SoNode *child ) const             { return findChild(child); }
  virtual void internalInsertChild( SoNode *child, int newChildIndex )   { insertChild(child, newChildIndex); }
  virtual SoNode *internalGetChild( int index) const                     { return getChild(index); }
  virtual void internalReplaceChild( int index, SoNode *newChild)        { replaceChild(index, newChild); }
  virtual void internalReplaceChild( SoNode *oldChild, SoNode *newChild) { replaceChild(oldChild,newChild); }
  
  virtual bool isGroup() { return true; }
  
  // Copies the contents of the given node into this instance
  virtual void copyContents(const SoFieldContainer *fromFC, SbBool copyConnections);

  // serialize children list
  static void writeChildren( SoWriteAction *action, SoChildList* children_ );

 private:
  SoChildList *children;
  
  // Reads stuff into instance of SoGroup. Returns FALSE on error
  virtual SbBool readInstance(SoInput *in, unsigned short flags);
  
  // Reads just the children into instance of SoGroup. Returns FALSE on error
  virtual SbBool readChildren(SoInput *in);
  
  virtual ~SoGroup();
  
  void commonConstructor();
};


#endif /* _SO_GROUP_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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