SoMultipleInstanceElement.h

/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Author      : David Beilloin (Aug 2013)
**=======================================================================*/
#if !defined _SO_MULTIPLE_INSTANCE_ELEMENT_H_
#define _SO_MULTIPLE_INSTANCE_ELEMENT_H_
 
#include <Inventor/elements/SoReplacedElement.h>
#include <Inventor/SbMatrix.h>
 
class SoMultipleInstance;
 

class  SoMultipleInstanceElement : public SoReplacedElement
{
  SO_ELEMENT_HEADER(SoMultipleInstanceElement);
 
public:
  static void set(SoState* state, SoNode* node, SoMultipleInstance* instanceproperty);

  static unsigned int getNumInstances(SoState* state);

  static SoMultipleInstance* get(SoState* state);
   
  static SoMultipleInstance* getDefault();

  static unsigned int getNumBatches(SoState * state);
 
private:
  static void initClass();

  static void exitClass();

  inline const SbMatrix& getInstanceModelMatrix () const { return m_oivInstanceModelMatrix; }
  inline unsigned int getNumInstances() const { return m_numInstances; }
  inline unsigned int getNumInstancedBatches() const { return m_numBatches; }
  inline unsigned int getCurrentBatchNumber() const { return m_currentBatchNum; }
  inline int32_t getNeedParamsBits() const { return m_needParamsBits; }

  inline void setCurrentBatchNumber( uint32_t currentBatchNum ) { m_currentBatchNum = currentBatchNum; }
  inline void setNeedParamsBits( int32_t needParamsBits ) { m_needParamsBits = needParamsBits; }
 
private:
  virtual void init(SoState* state);

  virtual SoElement *copyMatchInfo() const;

  virtual SbBool matches(const SoElement* elt) const;
 
private:
  SoMultipleInstance* m_shapeInstanceProperty;
 
  SbMatrix m_oivInstanceModelMatrix;
 
  unsigned int m_numInstances;
  unsigned int m_numBatches;
  unsigned int m_currentBatchNum;
 
  int32_t m_needParamsBits;
};
 
 
#endif // _SO_MULTIPLE_INSTANCE_ELEMENT_H_