Inventor/elements/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/elements/SoLazyElement.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);

  static const SoShapeStyleElement *  get(SoState *state);

  SbBool              mightNotRender() const { return m_delayFlags; }

  SbBool              needNormals() const { return m_needNorms; }
    
  SbBool              needTexCoords(int unit=0) const
  { return (getTextureData(unit).texEnabled && (!getTextureData(unit).texFunc)); }

  SbBool              needTexCoords3(int unit=0) const
  { return (getTextureData(unit).tex3Enabled && (!getTextureData(unit).texFunc)); }

  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);
  static SbBool       isScreenDoor(SoState *state);

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();

  virtual void        print(FILE *fp) const;

 private:

  virtual             ~SoShapeStyleElement();

 private:
  int                 m_delayFlags; // True if rendering might be delayed
  SbBool              m_needNorms;

  // 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 */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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