SoPackedColor.h

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/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_PACKED_COLOR_
#define  _SO_PACKED_COLOR_
 
#include <Inventor/fields/SoMFUInt32.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/nodes/SoNode.h>
#include <Inventor/caches/SoNodeDependencies.h>
 
class SoColorPacker;
 
//
//  Class: SoPackedColor
//
//  Surface base color (of material) node. This affects the diffuse
//  color and transparency of the current material. Colors are packed
//  into uint32_ts as 0xaabbggrr. The alpha value is used for
//  transparency.
//
 
class  SoPackedColor : public SoNode {
 
  SO_NODE_HEADER(SoPackedColor);
 
 public:
  // Fields
  SoMFUInt32          orderedRGBA;
 
  SoPackedColor();
 
  inline virtual void setOverride(const SbBool state)
  { override.setValue(state); }
 
  inline virtual SbBool isOverride() const
  { return override.getValue(); }
 
 private:
  virtual void        doAction(SoAction *action);
  virtual void        GLRender(SoGLRenderAction *action);
  virtual void        callback(SoCallbackAction *action);
  SbBool              isTransparent()
    {return transparent;}
 
 private:
  static void         initClass();
  static void         exitClass();
 
  SoSFBool override;
 
  // check for transparency when field changes.
  virtual void        notify(SoNotList *list);
  
 private:
  virtual ~SoPackedColor();
    
 private:
  // store whether transparent or not
  SbBool transparent;
 
  void computeReplacementColors(SoState* state);
  void updateTransparencies(SoState* state);
 
  SoRef<SoNodeDependencies> m_replacementColorDependencies;
  std::vector<uint32_t> m_replacementColors;
  std::vector<float> m_cachedTransparencies;
    
};
 
#endif /* _SO_PACKED_COLOR_ */