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@376: #ifndef _COLOUR_MAPPER_H_
Chris@376: #define _COLOUR_MAPPER_H_
Chris@376: 
Chris@376: #include <QObject>
Chris@376: #include <QColor>
Chris@376: #include <QString>
Chris@376: 
Chris@376: /**
Chris@376:  * A class for mapping intensity values onto various colour maps.
Chris@376:  */
Chris@376: 
Chris@376: class ColourMapper : public QObject
Chris@376: {
Chris@376:     Q_OBJECT
Chris@376: 
Chris@376: public:
Chris@376:     ColourMapper(int map, float minValue, float maxValue);
Chris@376:     virtual ~ColourMapper();
Chris@376: 
Chris@376:     enum StandardMap {
Chris@376:         DefaultColours,
Chris@376:         Sunset,
Chris@376:         WhiteOnBlack,
Chris@376:         BlackOnWhite,
Chris@376:         RedOnBlue,
Chris@376:         YellowOnBlack,
Chris@376:         BlueOnBlack,
Chris@376:         FruitSalad,
Chris@376:         Banded,
Chris@376:         Highlight,
Chris@376:         Printer
Chris@376:     };
Chris@376: 
Chris@376:     int getMap() const { return m_map; }
Chris@376:     float getMinValue() const { return m_min; }
Chris@376:     float getMaxValue() const { return m_max; }
Chris@376: 
Chris@376:     static int getColourMapCount();
Chris@376:     static QString getColourMapName(int n);
Chris@376: 
Chris@376:     QColor map(float value) const;
Chris@376: 
Chris@376:     QColor getContrastingColour() const; // for cursors etc
Chris@376:     bool hasLightBackground() const;
Chris@376: 
Chris@376: protected:
Chris@376:     int m_map;
Chris@376:     float m_min;
Chris@376:     float m_max;
Chris@376: };
Chris@376: 
Chris@376: #endif
Chris@376: