Chris@376: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@376: 
Chris@376: /*
Chris@376:     Sonic Visualiser
Chris@376:     An audio file viewer and annotation editor.
Chris@376:     Centre for Digital Music, Queen Mary, University of London.
Chris@376:     This file copyright 2006-2007 Chris Cannam and QMUL.
Chris@376:     
Chris@376:     This program is free software; you can redistribute it and/or
Chris@376:     modify it under the terms of the GNU General Public License as
Chris@376:     published by the Free Software Foundation; either version 2 of the
Chris@376:     License, or (at your option) any later version.  See the file
Chris@376:     COPYING included with this distribution for more information.
Chris@376: */
Chris@376: 
Chris@1199: #ifndef SV_COLOUR_MAPPER_H
Chris@1199: #define SV_COLOUR_MAPPER_H
Chris@376: 
Chris@376: #include <QObject>
Chris@376: #include <QColor>
Chris@376: #include <QString>
Chris@1199: #include <QPixmap>
Chris@376: 
Chris@376: /**
Chris@376:  * A class for mapping intensity values onto various colour maps.
Chris@376:  */
Chris@1071: class ColourMapper
Chris@376: {
Chris@376: public:
Chris@902:     ColourMapper(int map, double minValue, double maxValue);
Chris@1071:     ~ColourMapper();
Chris@1071: 
Chris@1071:     ColourMapper(const ColourMapper &) = default;
Chris@1071:     ColourMapper &operator=(const ColourMapper &) = default;
Chris@376: 
Chris@376:     enum StandardMap {
Chris@1017:         Green,
Chris@376:         Sunset,
Chris@376:         WhiteOnBlack,
Chris@376:         BlackOnWhite,
Chris@1017:         Cherry,
Chris@1017:         Wasp,
Chris@1017:         Ice,
Chris@376:         FruitSalad,
Chris@376:         Banded,
Chris@376:         Highlight,
Chris@536:         Printer,
Chris@1015:         HighGain
Chris@376:     };
Chris@376: 
Chris@376:     int getMap() const { return m_map; }
Chris@902:     double getMinValue() const { return m_min; }
Chris@902:     double getMaxValue() const { return m_max; }
Chris@376: 
Chris@376:     static int getColourMapCount();
Chris@376:     static QString getColourMapName(int n);
Chris@376: 
Chris@902:     QColor map(double value) const;
Chris@376: 
Chris@376:     QColor getContrastingColour() const; // for cursors etc
Chris@376:     bool hasLightBackground() const;
Chris@376: 
Chris@1199:     QPixmap getExamplePixmap(QSize size) const;
Chris@1199:     
Chris@376: protected:
Chris@376:     int m_map;
Chris@902:     double m_min;
Chris@902:     double m_max;
Chris@376: };
Chris@376: 
Chris@376: #endif
Chris@376: