SoIndexedTriangleSet.h

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**=======================================================================*/
/*=======================================================================
** Author      : David Beilloin (Mar 2011)
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
#ifndef  _SO_INDEXED_TRIANGLE_SET_
#define  _SO_INDEXED_TRIANGLE_SET_
 
#include <Inventor/nodes/SoIndexedShape.h>
#include <Inventor/SbPImpl.h>
 
class SoNormalBundle;
class SoShapeStyleElement;
class SoVolumeIndexedTriangleSet;
 
SO_PIMPL_PUBLIC_DECLARATION(SoIndexedTriangleSet)
 
//@TOBEWRAPPED
class  SoIndexedTriangleSet : public SoIndexedShape
{
  SO_NODE_HEADER(SoIndexedTriangleSet);
  SO_PIMPL_PUBLIC_HEADER(SoIndexedTriangleSet)
 
public:
  // Inherits fields

  SoIndexedTriangleSet();
 
private:
  // Implements actions

  virtual void GLRender( SoGLRenderAction* action );

  virtual void generateDefaultNormals( SoState* state,
                                       const SbVec3f* coords,
                                       int numCoords,
                                       SoNormalBundle* nb,
                                       SbBool storeRef = FALSE );

  virtual void shouldGenerateTangents( SoGLRenderAction* /*action*/, const SoShapeStyleElement* /*shapeStyle*/ ) {}

  virtual void getPrimitiveCount( SoGetPrimitiveCountAction* action );
                                                  
private:

  static void initClass();

  static void exitClass();
  
  // set numTris/Quads/Faces to -1 when notified
  virtual void notify( SoNotList* list );
 
  // Compute the number of vertices. This is just an approximation,
  //so using 5 verts per unknown polygon is close enough. 
  virtual int getNumPrim( SoState* state = NULL );
 
private:
 
  // This enum is used to indicate the current material or normal binding
  enum Binding {
    OVERALL, PER_FACE, PER_FACE_INDEXED, PER_VERTEX,
    PER_VERTEX_INDEXED
  };
 
  virtual SbBool shouldGenerateTexture3DCoordinates(){return TRUE;}
 
  virtual void callSetupIndices( SoState* state, const SoShapeStyleElement* shapeStyle, uint32_t useTexCoordsAnyway );
 
  //Wether to check or not 3d tex coords
  virtual SbBool checkTex3Coords(){return TRUE;}
 
  int getNumPrim( SoState* state, int& _numTris );
 
  virtual void countPrim( SoState* state = NULL );
 
  // Generates triangles representing faces
  virtual void generatePrimitives( SoAction* action);
 
  // render function
  virtual void doRendering(SoGLRenderAction* action, const SoShapeStyleElement* shapeStyle);
 
  // Overrides standard method to create an SoFaceDetail instance
  virtual SoDetail *createTriangleDetail( SoRayPickAction* action,
                                          const SoPrimitiveVertex* v1,
                                          const SoPrimitiveVertex* v2,
                                          const SoPrimitiveVertex* v3,
                                          SoPickedPoint* pp);
 
  // destructor
  virtual ~SoIndexedTriangleSet();
 
private:
 
  friend class SoVolumeIndexedTriangleSetDl;
  friend class SoVolumeIndexedTriangleSet;
};
 
#endif /* _SO_INDEXED_TRIANGLE_SET_ */