SoVertexAttributeElement.h

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#ifndef COIN_SOVERTEXATTRIBUTEELEMENT_H
#define COIN_SOVERTEXATTRIBUTEELEMENT_H

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#include <Inventor/elements/SoAccumulatedElement.h>
#include <Inventor/elements/SoSubElement.h>
#include <Inventor/tools/SbPimplPtr.h>

class SoState;
class SoMField;
class SoVertexAttributeData;
class SoVertexAttributeElementP;

class COIN_DLL_API SoVertexAttributeElement : public SoAccumulatedElement {
  typedef SoAccumulatedElement inherited;
  SO_ELEMENT_HEADER(SoVertexAttributeElement);

public:
  static void initClass(void);
  virtual void init(SoState * state);

  virtual void push(SoState * state);
  static void add(SoState * const state, SoVertexAttributeData * attribdata);
                  
  static const SoVertexAttributeElement * getInstance(SoState * const state);
  unsigned int getNumAttributes(void) const;

  typedef const char * Key;
  typedef SoVertexAttributeData * Type;
  typedef void AttributeApplyFunc(const Key & key, const Type & obj, void * closure);
  void applyToAttributes(AttributeApplyFunc * func, void * closure) const;

protected:
  virtual ~SoVertexAttributeElement();

  virtual void addElt(SoVertexAttributeData * attribdata);

private:
  // needed by SbPimplPtr
  SoVertexAttributeElement(const SoVertexAttributeElement & rhs); // N/A
  SoVertexAttributeElement & operator = (const SoVertexAttributeElement & rhs); // N/A

  SbPimplPtr<SoVertexAttributeElementP> pimpl;
};

#endif // COIN_SOVERTEXATTRIBUTEELEMENT_H