svapp
1.9
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2006 QMUL. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #ifndef _PLAY_SPEED_RANGE_MAPPER_H_ 00017 #define _PLAY_SPEED_RANGE_MAPPER_H_ 00018 00019 #include "base/RangeMapper.h" 00020 00021 class PlaySpeedRangeMapper : public RangeMapper 00022 { 00023 public: 00024 PlaySpeedRangeMapper(int minpos, int maxpos); 00025 00026 virtual int getPositionForValue(float value) const; 00027 virtual int getPositionForValueUnclamped(float value) const; 00028 00029 virtual float getValueForPosition(int position) const; 00030 virtual float getValueForPositionUnclamped(int position) const; 00031 00032 int getPositionForFactor(float factor) const; 00033 float getValueForFactor(float factor) const; 00034 00035 float getFactorForPosition(int position) const; 00036 float getFactorForValue(float value) const; 00037 00038 virtual QString getUnit() const; 00039 00040 protected: 00041 int m_minpos; 00042 int m_maxpos; 00043 }; 00044 00045 00046 #endif