albaColor.h

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/*=========================================================================
 
 Program: ALBA (Agile Library for Biomedical Applications)
 Module: albaColor
 Authors: Silvano Imboden
 
 Copyright (c) BIC
 All rights reserved. See Copyright.txt or
 
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
 
#ifndef __albaColor_H__
#define __albaColor_H__
 
//----------------------------------------------------------------------------
class ALBA_EXPORT albaColor
//----------------------------------------------------------------------------
{
  public:
  albaColor();
  albaColor( int r, int g, int b, int a=0 ); 
  albaColor( double *vtkRGBA ); 
  albaColor( wxColour col ); 
 
  void     Set( wxColour col );
  wxColour Get();
  
  void SetRGB( int r, int g, int b, int a=-1 );
  void GetRGB( int *r, int *g, int *b, int *a= NULL );
 
  void SetHSV(int h, int s, int v);
  void GetHSV(int *h, int *s, int *v);
 
  void SetFloatRGB( double r, double g, double b, double o=-1 );  
  void GetFloatRGB( double *r, double *g, double *b, double *o ); 
 
  void HSVToRGB(); 
  void RGBToHSV();
 
  static void RGBToHSV(int r, int g, int b, int *h, int *s, int *v);
  static void HSVToRGB(int h, int s, int v, int *r, int *g, int *b);
 
   static void RGBToHSL(int r, int g, int b, int *h, int *s, int *l);
   static void HSLToRGB(int h, int s, int v, int *r, int *g, int *b);
 
 
  static albaColor InterpolateHSV(albaColor c1, albaColor c2, double t);
  static albaColor InterpolateRGB(albaColor c1, albaColor c2, double t);
 
  static albaColor CheckeredColor(albaColor c, int x, int y)
  {
    static albaColor check0 = albaColor(128,128,128);
    static albaColor check1 = albaColor(255,255,255);
  
    int a = x%16 >= 8;
    int b = y%16 >= 8;
    if( a+b == 1 )
      return albaColor::InterpolateRGB(c,check0,c.m_Alpha/255.0);
    else
      return albaColor::InterpolateRGB(c,check1,c.m_Alpha/255.0);
  }  
   // member variables 
  int m_Red,m_Green,m_Blue; 
  int m_Hue,m_Saturation,m_Value; 
  int m_Alpha;         
};
#endif