Mercurial > hg > svcore
view data/model/NoteModel.h @ 409:6075c90744d4
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author | Chris Cannam |
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date | Fri, 09 May 2008 12:39:02 +0000 |
parents | 5858cc462d0a |
children | 6a96bff0bd59 |
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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 Chris Cannam. 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 _NOTE_MODEL_H_ #define _NOTE_MODEL_H_ #include "SparseValueModel.h" #include "base/RealTime.h" #include "base/PlayParameterRepository.h" /** * Note type for use in a SparseModel or SparseValueModel. All we * mean by a "note" is something that has an onset time, a single * value, and a duration. Like other points, it can also have a * label. With this point type, the model can be thought of as * representing a simple MIDI-type piano roll, except that the y * coordinates (values) do not have to be discrete integers. */ struct Note { public: Note(long _frame) : frame(_frame), value(0.0f), duration(0), level(1.f) { } Note(long _frame, float _value, size_t _duration, float _level, QString _label) : frame(_frame), value(_value), duration(_duration), level(_level), label(_label) { } int getDimensions() const { return 3; } long frame; float value; size_t duration; float level; QString label; QString getLabel() const { return label; } void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const { stream << QString("%1<point frame=\"%2\" value=\"%3\" duration=\"%4\" level=\"%5\" label=\"%6\" %7/>\n") .arg(indent).arg(frame).arg(value).arg(duration).arg(level).arg(label).arg(extraAttributes); } QString toDelimitedDataString(QString delimiter, size_t sampleRate) const { QStringList list; list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str(); list << QString("%1").arg(value); list << RealTime::frame2RealTime(duration, sampleRate).toString().c_str(); list << QString("%1").arg(level); if (label != "") list << label; return list.join(delimiter); } struct Comparator { bool operator()(const Note &p1, const Note &p2) const { if (p1.frame != p2.frame) return p1.frame < p2.frame; if (p1.value != p2.value) return p1.value < p2.value; if (p1.duration != p2.duration) return p1.duration < p2.duration; if (p1.level != p2.level) return p1.level < p2.level; return p1.label < p2.label; } }; struct OrderComparator { bool operator()(const Note &p1, const Note &p2) const { return p1.frame < p2.frame; } }; }; class NoteModel : public SparseValueModel<Note> { public: NoteModel(size_t sampleRate, size_t resolution, bool notifyOnAdd = true) : SparseValueModel<Note>(sampleRate, resolution, notifyOnAdd), m_valueQuantization(0) { PlayParameterRepository::getInstance()->addPlayable(this); } NoteModel(size_t sampleRate, size_t resolution, float valueMinimum, float valueMaximum, bool notifyOnAdd = true) : SparseValueModel<Note>(sampleRate, resolution, valueMinimum, valueMaximum, notifyOnAdd), m_valueQuantization(0) { PlayParameterRepository::getInstance()->addPlayable(this); } virtual ~NoteModel() { PlayParameterRepository::getInstance()->removePlayable(this); } float getValueQuantization() const { return m_valueQuantization; } void setValueQuantization(float q) { m_valueQuantization = q; } /** * Notes have a duration, so this returns all points that span any * of the given range (as well as the usual additional few before * and after). Consequently this can be very slow (optimised data * structures still to be done!). */ virtual PointList getPoints(long start, long end) const; /** * Notes have a duration, so this returns all points that span the * given frame. Consequently this can be very slow (optimised * data structures still to be done!). */ virtual PointList getPoints(long frame) const; QString getTypeName() const { return tr("Note"); } virtual bool canPlay() const { return true; } virtual QString getDefaultPlayPluginId() const { return "dssi:_builtin:sample_player"; } virtual QString getDefaultPlayPluginConfiguration() const { return "<plugin program=\"piano\"/>"; } virtual void toXml(QTextStream &out, QString indent = "", QString extraAttributes = "") const { std::cerr << "NoteModel::toXml: extraAttributes = \"" << extraAttributes.toStdString() << std::endl; SparseValueModel<Note>::toXml (out, indent, QString("%1 valueQuantization=\"%2\"") .arg(extraAttributes).arg(m_valueQuantization)); } protected: float m_valueQuantization; }; #endif