Mercurial > hg > svcore
view base/RangeMapper.h @ 839:38bb7c8e415d
Add writeSelection
author | Chris Cannam |
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date | Wed, 09 Oct 2013 14:51:46 +0100 |
parents | b4a8d8221eaf |
children | eb6b6a88faed |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 QMUL. 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. See the file COPYING included with this distribution for more information. */ #ifndef _RANGE_MAPPER_H_ #define _RANGE_MAPPER_H_ #include <QString> #include "Debug.h" class RangeMapper { public: virtual ~RangeMapper() { } virtual int getPositionForValue(float value) const = 0; virtual float getValueForPosition(int position) const = 0; virtual QString getUnit() const { return ""; } }; class LinearRangeMapper : public RangeMapper { public: LinearRangeMapper(int minpos, int maxpos, float minval, float maxval, QString unit = "", bool inverted = false); virtual int getPositionForValue(float value) const; virtual float getValueForPosition(int position) const; virtual QString getUnit() const { return m_unit; } protected: int m_minpos; int m_maxpos; float m_minval; float m_maxval; QString m_unit; bool m_inverted; }; class LogRangeMapper : public RangeMapper { public: LogRangeMapper(int minpos, int maxpos, float minval, float maxval, QString m_unit = "", bool inverted = false); static void convertRatioMinLog(float ratio, float minlog, int minpos, int maxpos, float &minval, float &maxval); static void convertMinMax(int minpos, int maxpos, float minval, float maxval, float &ratio, float &minlog); virtual int getPositionForValue(float value) const; virtual float getValueForPosition(int position) const; virtual QString getUnit() const { return m_unit; } protected: int m_minpos; int m_maxpos; float m_ratio; float m_minlog; float m_maxlog; QString m_unit; bool m_inverted; }; #endif