SoShapeStyleElement.h

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/*=======================================================================
** Author      : Alan Norton (MMM yyyy)
** Modified by : Gavin Bell (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_SHAPE_STYLE_ELEMENT
#define  _SO_SHAPE_STYLE_ELEMENT
 
#include <Inventor/elements/SoInt32Element.h>
#include <Inventor/STL/vector>
 
#ifdef _MSC_VER
#pragma warning( push )
#pragma warning(disable:4251)
#endif
 
SoEXTENDER_Documented class  SoShapeStyleElement : public SoElement {
 
  SO_ELEMENT_HEADER(SoShapeStyleElement);
 
 public:
 
  enum flags { 
    INVISIBLE_BIT = 0x1, 
    BBOX_BIT = 0x2, 
    DELAY_TRANSP_BIT = 0x4
  };
 
  virtual void push(SoState *state);
 
  virtual void pop(SoState *state, const SoElement *prevTopElement);
 
  static const SoShapeStyleElement *  get(SoState *state);
 
  SbBool              mightNotRender() const { return m_delayFlags; }
 
  SbBool              needNormals() const { return m_needNorms; }
 
  SbBool needTangents() const
  {
    return m_needTangs;
  }
    
  SbBool              needTexCoords(int unit=0) const;
 
  SbBool              needTexCoords3(int unit=0) const;
 
  int                 getRenderCaseMask() const
  { return m_renderCaseMask; }
 
  static void         setDrawStyle(SoState *state, int32_t value);
  static void         setComplexityType(SoState *state, int32_t value);
  static void         setTransparencyType(SoState *state, int32_t value);
  static void         setTextureEnabled(SoState *state, SbBool value, int unit=0);
  static void         setTexture3Enabled(SoState *state, SbBool value, int unit=0);
  static void         setTextureFunction(SoState *state, SbBool value, int unit=0);
  static void         setLightModel(SoState *state, int32_t value);
  static void         setOverrides(SoState *state, SbBool value);
 
  virtual void        print(FILE *fp) const;
 
private:
 
  virtual void commonInit();
 
  virtual void init(SoState *state);
 
  virtual SbBool matches(const SoElement* elt) const;
 
  virtual SoElement* copyMatchInfo() const;
 
 private:
  SbBool      isTextureFunction(int unit=0) const
  {return (getTextureData(unit).texFunc);}
 
  static void         initClass();
 
  static void         exitClass();
 
 private:
 
  virtual             ~SoShapeStyleElement();
 
 private:
  int                 m_delayFlags; // True if rendering might be delayed
  SbBool              m_needNorms;
  SbBool              m_needTangs;
 
  // Texture Data for each texture unit
  struct SoTextureData {
    bool  texEnabled ;
    bool  tex3Enabled ;
    bool  texFunc ;
 
    // Constructor
    SoTextureData()
    {
      texEnabled = tex3Enabled = texFunc = false;
    }
 
    // equality operator
    friend int operator ==(const SoTextureData &texData1, const SoTextureData &texData2)
    { 
      return (texData1.texEnabled  == texData2.texEnabled &&
                texData1.tex3Enabled == texData2.tex3Enabled &&
                texData1.texFunc     == texData2.texFunc) ;
    }
 
    // !equality operator
    friend int operator !=(const SoTextureData &texData1, const SoTextureData &texData2)
    { return !(texData1 == texData2) ; }
  } ;
  
 
  SoTextureData& getTextureData( const int unit ) const;
  typedef std::vector<SoTextureData> SoTexDataList;
  mutable SoTexDataList m_texDataList;
 
  int                 m_renderCaseMask;
};
 
#ifdef _MSC_VER
#pragma warning( pop )
#endif
 
#endif /* _SO_SHAPE_STYLE_ELEMENT */