Chris@277: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@277: 
Chris@277: /*
Chris@277:     Sonic Visualiser
Chris@277:     An audio file viewer and annotation editor.
Chris@277:     Centre for Digital Music, Queen Mary, University of London.
Chris@277:     This file copyright 2006-2007 Chris Cannam and QMUL.
Chris@277:     
Chris@277:     This program is free software; you can redistribute it and/or
Chris@277:     modify it under the terms of the GNU General Public License as
Chris@277:     published by the Free Software Foundation; either version 2 of the
Chris@277:     License, or (at your option) any later version.  See the file
Chris@277:     COPYING included with this distribution for more information.
Chris@277: */
Chris@277: 
Chris@277: #ifndef _COLOUR_MAPPER_H_
Chris@277: #define _COLOUR_MAPPER_H_
Chris@277: 
Chris@277: #include <QObject>
Chris@277: #include <QColor>
Chris@277: #include <QString>
Chris@277: 
Chris@277: /**
Chris@277:  * A class for mapping intensity values onto various colour maps.
Chris@277:  */
Chris@277: 
Chris@277: class ColourMapper : public QObject
Chris@277: {
Chris@277:     Q_OBJECT
Chris@277: 
Chris@277: public:
Chris@277:     ColourMapper(int map, float minValue, float maxValue);
Chris@277:     virtual ~ColourMapper();
Chris@277: 
Chris@277:     enum StandardMap {
Chris@277:         DefaultColours,
Chris@277:         Sunset,
Chris@277:         WhiteOnBlack,
Chris@277:         BlackOnWhite,
Chris@277:         RedOnBlue,
Chris@277:         YellowOnBlack,
Chris@277:         BlueOnBlack,
Chris@277:         FruitSalad,
Chris@277:         Banded,
Chris@277:         Highlight,
Chris@277:         Printer
Chris@277:     };
Chris@277: 
Chris@277:     int getMap() const { return m_map; }
Chris@277:     float getMinValue() const { return m_min; }
Chris@277:     float getMaxValue() const { return m_max; }
Chris@277: 
Chris@277:     static int getColourMapCount();
Chris@277:     static QString getColourMapName(int n);
Chris@277: 
Chris@277:     QColor map(float value) const;
Chris@277: 
Chris@277:     QColor getContrastingColour() const; // for cursors etc
Chris@277:     bool hasLightBackground() const;
Chris@277: 
Chris@277: protected:
Chris@277:     int m_map;
Chris@277:     float m_min;
Chris@277:     float m_max;
Chris@277: };
Chris@277: 
Chris@277: #endif
Chris@277: