File indexing completed on 2024-12-22 04:17:59

 /*******************************************************************************
  *                                                                             *
  *   copyright : (C) 2010 C. Barth Netterfield <netterfield@astro.utoronto.ca> *
  *                                                                             *
  *   This program is free software; you can redistribute it and/or modify      *
  *   it under the terms of the GNU General Public License as published by      *
  *   the Free Software Foundation; either version 2 of the License, or         *
  *   (at your option) any later version.                                       *
  *                                                                             *
  *******************************************************************************/
 
 #ifndef PALETTE_H
 #define PALETTE_H
 
 #include <QColor>
 #include <QHash>
 #include "kstmath_export.h"
 
 namespace Kst {
 
 typedef QHash<int, QColor> PaletteData;
 
 const unsigned int maxColorTableSize = 2048;
 
 const QString DefaultPalette("Kst Grayscale");
 class KSTMATH_EXPORT Palette 
 {
   public:
     /**
      * @returns string list of avalible palettes
      */
     static QStringList getPaletteList();
 
     Palette();
     explicit Palette(const QString &paletteName);
 
     virtual ~Palette();
 
     void changePaletteName(const QString &paletteName);
     QString paletteName() const {return _paletteName;}
     int colorCount() const {return _count;}
 
     /**
      * Returns the color corresponding to colorId.
      * It truncates to max or min _color if colorId is out
      * of bounds, so bounds checking is not necessary in the
      * calling function.
      * @returns the QColor
      */
     QColor color(const int colorId) const{
       if (colorId<0) {
         return _colors[0];
       } else if (colorId>=_count) {
         return _colors[_count-1];
       } else {
         return _colors[colorId];
       }
     }
     /**
      * Returns the rgb value for the color corresponding to colorId.
      * It truncates to max or min _rgb if colorId is out
      * of bounds, so bounds checking is not necessary in the
      * calling function.
      * @returns the QColor.rgb().
      */
     QRgb rgb(const int colorId) const{
       if (colorId<0) {
         return _rgb[0] | 0xff000000;
       } else if (colorId>=_count) {
         return _rgb[_count-1] | 0xff000000;
       } else {
         return _rgb[colorId] | 0xff000000;
       }
     }
 
 private:
     QColor *_colors;
     QRgb *_rgb;
     QString _paletteName;
     int _count;
 };
 
 }
 #endif
 
 // vim: ts=2 sw=2 et