SoOverrideElement.h

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/*=======================================================================
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/*=======================================================================
** Author      : Roger Chickering (MMM yyyy)
** Modified by : Gavin Bell (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_OVERRIDE_ELEMENT
#define  _SO_OVERRIDE_ELEMENT
 
#include <Inventor/elements/SoSubElement.h>
#include <Inventor/STL/bitset>
 
//
// Macro to implement get*Override inline methods.  There are a lot of
// these methods, each of which has an identical implementation and
// which needs to be inline to keep traversal fast.
#define SO_GET_OVERRIDE(flag)     \
  const SoOverrideElement *elt;                                       \
  elt = SoElement::getConstElement<SoOverrideElement>(state);         \
  return (elt->m_flags.test(flag));
 
//
// Implement set*Override methods.
//
#define SO_SET_OVERRIDE(flag)                                       \
  SoOverrideElement   *elt;                                         \
  elt = SoElement::getElement<SoOverrideElement>(state);            \
  if (override)                                                     \
    elt->m_flags.set(flag);                                         \
  else                                                              \
    elt->m_flags.reset(flag);
 
SoEXTENDER_Documented class  SoOverrideElement : public SoElement {
 
  SO_ELEMENT_HEADER(SoOverrideElement);
 
 public:
 
  virtual void push(SoState *state);
 
  //
  // "get" methods for each element which can be overridden.
  //
 
  static SbBool getAmbientColorOverride(SoState *state)
    { SO_GET_OVERRIDE(AMBIENT_COLOR); }
 
  static SbBool getColorIndexOverride(SoState *state)
    { SO_GET_OVERRIDE(COLOR_INDEX); }
 
  static SbBool getComplexityOverride(SoState *state)
    { SO_GET_OVERRIDE(COMPLEXITY); }
 
  static SbBool getComplexityTypeOverride(SoState *state)
    { SO_GET_OVERRIDE(COMPLEXITY_TYPE); }
 
  static SbBool getCreaseAngleOverride(SoState *state)
    { SO_GET_OVERRIDE(CREASE_ANGLE); }
 
  static SbBool getNeighborToleranceOverride(SoState *state)
    { SO_GET_OVERRIDE(NEIGHBOR_TOLERANCE); }
 
  static SbBool getDiffuseColorOverride(SoState *state)
    { SO_GET_OVERRIDE(DIFFUSE_COLOR); }
 
  static SbBool getDrawStyleOverride(SoState *state)
    { SO_GET_OVERRIDE(DRAW_STYLE); }
 
  static SbBool getEmissiveColorOverride(SoState *state)
    { SO_GET_OVERRIDE(EMISSIVE_COLOR); }
 
  static SbBool getFontNameOverride(SoState *state)
    { SO_GET_OVERRIDE(FONT_NAME); }
 
  static SbBool getFontSizeOverride(SoState *state)
    { SO_GET_OVERRIDE(FONT_SIZE); }
 
  static SbBool getFontRenderStyleOverride(SoState *state)
    { SO_GET_OVERRIDE(FONT_RENDERSTYLE); }
 
  static SbBool getLightModelOverride(SoState *state)
    { SO_GET_OVERRIDE(LIGHT_MODEL); }
 
  static SbBool getLinePatternOverride(SoState *state)
    { SO_GET_OVERRIDE(LINE_PATTERN); }
 
  static SbBool getLineWidthOverride(SoState *state)
    { SO_GET_OVERRIDE(LINE_WIDTH); }
 
  static SbBool getMaterialBindingOverride(SoState *state)
    { SO_GET_OVERRIDE(MATERIAL_BINDING); }
 
  static SbBool getPointSizeOverride(SoState *state)
    { SO_GET_OVERRIDE(POINT_SIZE); }
 
  static SbBool getPickStyleOverride(SoState *state)
    { SO_GET_OVERRIDE(PICK_STYLE); }
 
  static SbBool getShapeHintsOverride(SoState *state)
    { SO_GET_OVERRIDE(SHAPE_HINTS); }
 
  static SbBool getShininessOverride(SoState *state)
    { SO_GET_OVERRIDE(SHININESS); }
 
  static SbBool getSpecularColorOverride(SoState *state)
    { SO_GET_OVERRIDE(SPECULAR_COLOR); }
 
  static SbBool getTransparencyOverride(SoState *state)
    { SO_GET_OVERRIDE(TRANSPARENCY); }
 
  static SbBool getTransparencyTypeOverride(SoState *state)
    { SO_GET_OVERRIDE(TRANSPARENCY_TYPE); }
 
  static SbBool getEnvironmentOverride(SoState *state)
    { SO_GET_OVERRIDE(ENVIRONMENT); }
 
  static SbBool getPolygonOffsetOverride(SoState *state)
    { SO_GET_OVERRIDE(POLYGON_OFFSET); }
 
  static SbBool getPatternOverride(SoState* state)
    { SO_GET_OVERRIDE(PATTERN_OFFSET); }
 
  static SbBool getFullSceneAntialiasingOverride(SoState *state)
    { SO_GET_OVERRIDE(FULL_SCENE_ANTIALIASING); }
 
  static SbBool getDepthBufferRangeOverride(SoState *state)
    { SO_GET_OVERRIDE(DEPTH_BUFFER_RANGE); }
 
  static SbBool getDepthBufferFunctionOverride(SoState *state)
    { SO_GET_OVERRIDE(DEPTH_BUFFER_FUNCTION); }
 
  static SbBool getBBoxTypeOverride(SoState *state)
    { SO_GET_OVERRIDE(BBOX_TYPE); }
 
 
  //
  // "set" methods for each element which can be overridden.
  //
 
  static void setAmbientColorOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(AMBIENT_COLOR); }
 
  static void setColorIndexOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(COLOR_INDEX); }
 
  static void setComplexityOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(COMPLEXITY); }
 
  static void setComplexityTypeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(COMPLEXITY_TYPE); }
 
  static void setCreaseAngleOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(CREASE_ANGLE); }
 
  static void setNeighborToleranceOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(NEIGHBOR_TOLERANCE); }
 
  static void setDiffuseColorOverride(SoState *state, SoNode *, SbBool override);
 
  static void setDrawStyleOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(DRAW_STYLE); }
 
  static void setEmissiveColorOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(EMISSIVE_COLOR); }
 
  static void setFontNameOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(FONT_NAME); }
 
  static void setFontSizeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(FONT_SIZE); }
 
  static void setFontRenderStyleOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(FONT_RENDERSTYLE); }
 
  static void setLightModelOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(LIGHT_MODEL); }
 
  static void setLinePatternOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(LINE_PATTERN); }
 
  static void setLineWidthOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(LINE_WIDTH); }
 
  static void setMaterialBindingOverride(SoState *state, SoNode *, SbBool override);
 
  static void setPickStyleOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(PICK_STYLE); }
 
  static void setPointSizeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(POINT_SIZE); }
 
  static void setShapeHintsOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(SHAPE_HINTS); }
 
  static void setShininessOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(SHININESS); }
 
  static void setSpecularColorOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(SPECULAR_COLOR); }
 
  static void setTransparencyOverride(SoState *state, SoNode *, SbBool override);
 
  static void setTransparencyTypeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(TRANSPARENCY_TYPE); }
 
  static void setEnvironmentOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(ENVIRONMENT); }
 
  static void setPolygonOffsetOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(POLYGON_OFFSET); }
 
  static void setPatternOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(PATTERN_OFFSET); }
 
  static void setFullSceneAntialiasingOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(FULL_SCENE_ANTIALIASING); }
 
  static void setDepthBufferRangeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(DEPTH_BUFFER_RANGE); }
 
  static void setDepthBufferFunctionOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(DEPTH_BUFFER_FUNCTION); }
 
  static void setBBoxTypeOverride(SoState *state, SoNode *, SbBool override)
    { SO_SET_OVERRIDE(BBOX_TYPE); }
 
  virtual void print(FILE *fp) const;
 
private:
 
  virtual void init(SoState *state);
 
  virtual SbBool matches(const SoElement* elt) const;
 
  virtual SoElement* copyMatchInfo() const;
 
 private:
  enum Defined_Override_Bit {
    AMBIENT_COLOR= 0,
    COLOR_INDEX,
    COMPLEXITY,
    COMPLEXITY_TYPE,
    CREASE_ANGLE,
    DIFFUSE_COLOR,
    TRANSPARENCY,
    DRAW_STYLE,
    EMISSIVE_COLOR,
    FONT_NAME,
    FONT_SIZE,
    LIGHT_MODEL,
    LINE_PATTERN,
    LINE_WIDTH,
    MATERIAL_BINDING,
    POINT_SIZE,
    PICK_STYLE,
    PICK_METHOD,
    SHAPE_HINTS,
    SHININESS,
    SPECULAR_COLOR,
    POLYGON_OFFSET,
    PATTERN_OFFSET,
    FONT_RENDERSTYLE,
    FULL_SCENE_ANTIALIASING,
    TRANSPARENCY_TYPE,
    ENVIRONMENT,
    DEPTH_BUFFER_RANGE,
    DEPTH_BUFFER_FUNCTION,
    BBOX_TYPE,
    NEIGHBOR_TOLERANCE,
    TEXTPRP_ANTIALIASING_FACTOR,
    TEXTPRP_ALIGNEMENT_H,
    TEXTPRP_ALIGNEMENT_V,
    TEXTPRP_BACKFRAMELINE,
    TEXTPRP_ORIENTATION,
    TEXTPRP_KERNING,
    TEXTPRP_TEXTUREQUALITY,
    TEXTPRP_MARGIN,
    TEXTPRP_STYLE,
    TEXTPRP_STYLECOLORS,
    TEXTPRP_STYLECOLORS_USE_CURRENT_MATERIAL,
    TEXTPRP_CHARACTER_SPACING,
    LAST_OVERRIDE_BIT,
  };
 
  typedef std::bitset<LAST_OVERRIDE_BIT> BitSetType;
 
  // Initializes the SoOverrideElement class
  static void initClass();
  static void exitClass();
 
  static void setOverrideFlag(SoState* state, SoNode* SO_UNUSED_PARAM(node), Defined_Override_Bit flag, bool override)
  {
    SO_SET_OVERRIDE(flag);
  }
 
  // Compares input SoOverrideElement with this object
  // possibly using testBitMask to filter some bits
  // returns true if all bits are set in both SoOverrideElement
  bool compareWithMask( const SoOverrideElement& in, const BitSetType* testBitMask = NULL ) const;
 
  // helper class to test several bit of the bitset without
  // getting the State element more than once
  class BitSetGetter
  {
    public:
    explicit BitSetGetter( SoState* state )
      : m_BufferedFlags( SoElement::getConstElement<SoOverrideElement>( state )->m_flags )
    {
    }
 
    virtual ~BitSetGetter()
    {
    }
 
    // this is not requiring the getConstElement that can be costly
    inline bool testBit( int i )
    {
      return m_BufferedFlags.test(i);
    }
 
    private:
      BitSetGetter & operator=( const BitSetGetter & ) { return *this; }
      const BitSetType& m_BufferedFlags;
  };
 
  // helper class to test several bit of the bitset without
  // getting the State element more than once
  class BitSetSetter
  {
  public:
    explicit BitSetSetter( SoState* state )
      : m_BufferedFlags( SoElement::getElement<SoOverrideElement>( state )->m_flags )
    {
    }
 
    virtual ~BitSetSetter()
    {
    }
 
    // this is not requiring the getConstElement that can be costly
    inline void setBit( size_t i, bool value )
    {
      m_BufferedFlags.set(i, value);
    }
 
  private:
    BitSetSetter & operator=( const BitSetSetter & );
    BitSetType& m_BufferedFlags;
  };
 
  static void resetOverrideFlag(SoState* state);
 
 private:
  // Used by ::print method
  void pFlag(FILE *, int) const;
 
  BitSetType m_flags;
 
};
 
#endif /* _SO_OVERRIDE_ELEMENT */