SoBBoxModelMatrixElement.h

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**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_BBOX_MODEL_MATRIX_ELEMENT
#define  _SO_BBOX_MODEL_MATRIX_ELEMENT
 
#include <Inventor/SbBasic.h>
#include <Inventor/elements/SoModelMatrixElement.h>
 
#ifdef _DEBUG
#include <Inventor/threads/SbThreadLocalStorage.h>
#endif
 
SoEXTENDER_Documented class  SoBBoxModelMatrixElement : public SoModelMatrixElement {
 
  SO_ELEMENT_HEADER(SoBBoxModelMatrixElement);
 
 public:
 
  virtual void        push(SoState *state);
 
  static void         reset(SoState *state, SoNode *node);
 
  static void         pushMatrix(SoState *state,
                                 SbMatrix &matrix,
                                 SbMatrix &localmatrix);
  static void         popMatrix(SoState *state,
                                const SbMatrix &matrix,
                                const SbMatrix &localmatrix);
 
private:
 
  virtual void init(SoState *state);
 
 private:
  // Initializes the SoBBoxModelMatrixElement class
  static void         initClass();
  static void         exitClass();
 
  static void pushForwardMatrix(SoState *state, SbMatrix &matrix, SbMatrix &ftmatrix, SbMatrix &localmatrix);
 
  static void popForwardMatrix(SoState *state, const SbMatrix &matrix, const SbMatrix &ftmatrix, const SbMatrix &localmatrix);
 
 private:
  // These all override the methods on SoModelMatrixElement to also
  // set the SoLocalBBoxMatrixElement
  virtual void        makeEltIdentity();
  virtual void        setElt(const SbMatrix &matrix);
  virtual void        setElt(const SbMatrix &matrix, SbBool sendToGL);
  virtual void        multElt(const SbMatrix &matrix);
  virtual void        translateEltBy(const SbVec3f &translation);
  virtual void        rotateEltBy(const SbRotation &translation);
  virtual void        scaleEltBy(const SbVec3f &scaleFactor);
 
  // These must never be called; they print debug errors if called:
  virtual SbMatrix    pushMatrixElt();
  virtual void        popMatrixElt(const SbMatrix &m);
 
  virtual ~SoBBoxModelMatrixElement();
 
 private:
  // Stores pointer to state so we can access the SoLocalBBoxMatrixElement
  SoState* state;
 
#ifdef _DEBUG
  // This is used to make sure the pushMatrix/popMatrix methods are
  // called correctly.
  struct MTstruct
  {
    bool pushPopCallOK;
  };
  SB_THREAD_TLS_HEADER();
#endif
 
};
 
inline void
SoBBoxModelMatrixElement::setElt(const SbMatrix &matrix, SbBool )
{
  setElt(matrix);
}
 
#endif /* _SO_BBOX_MODEL_MATRIX_ELEMENT */