annotate data/model/NoteModel.h @ 223:bf753a9abf0c

* Add slice layers (so you can display a slice of a colour 3d plot as if it were a spectrum) * Make spectrum layer a subclass of slice layer
author Chris Cannam
date Fri, 26 Jan 2007 16:59:57 +0000
parents 4b2ea82fd0ed
children 9c85517ff0f5
rev   line source
Chris@147 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@147 2
Chris@147 3 /*
Chris@147 4 Sonic Visualiser
Chris@147 5 An audio file viewer and annotation editor.
Chris@147 6 Centre for Digital Music, Queen Mary, University of London.
Chris@147 7 This file copyright 2006 Chris Cannam.
Chris@147 8
Chris@147 9 This program is free software; you can redistribute it and/or
Chris@147 10 modify it under the terms of the GNU General Public License as
Chris@147 11 published by the Free Software Foundation; either version 2 of the
Chris@147 12 License, or (at your option) any later version. See the file
Chris@147 13 COPYING included with this distribution for more information.
Chris@147 14 */
Chris@147 15
Chris@147 16 #ifndef _NOTE_MODEL_H_
Chris@147 17 #define _NOTE_MODEL_H_
Chris@147 18
Chris@147 19 #include "SparseValueModel.h"
Chris@150 20 #include "base/PlayParameterRepository.h"
Chris@147 21 #include "base/RealTime.h"
Chris@147 22
Chris@147 23 /**
Chris@147 24 * Note type for use in a SparseModel or SparseValueModel. All we
Chris@147 25 * mean by a "note" is something that has an onset time, a single
Chris@147 26 * value, and a duration. Like other points, it can also have a
Chris@147 27 * label. With this point type, the model can be thought of as
Chris@147 28 * representing a simple MIDI-type piano roll, except that the y
Chris@147 29 * coordinates (values) do not have to be discrete integers.
Chris@147 30 */
Chris@147 31
Chris@147 32 struct Note
Chris@147 33 {
Chris@147 34 public:
Chris@147 35 Note(long _frame) : frame(_frame), value(0.0f), duration(0) { }
Chris@147 36 Note(long _frame, float _value, size_t _duration, QString _label) :
Chris@147 37 frame(_frame), value(_value), duration(_duration), label(_label) { }
Chris@147 38
Chris@147 39 int getDimensions() const { return 3; }
Chris@147 40
Chris@147 41 long frame;
Chris@147 42 float value;
Chris@147 43 size_t duration;
Chris@147 44 QString label;
Chris@147 45
Chris@147 46 QString toXmlString(QString indent = "",
Chris@147 47 QString extraAttributes = "") const
Chris@147 48 {
Chris@147 49 return QString("%1<point frame=\"%2\" value=\"%3\" duration=\"%4\" label=\"%5\" %6/>\n")
Chris@147 50 .arg(indent).arg(frame).arg(value).arg(duration).arg(label).arg(extraAttributes);
Chris@147 51 }
Chris@147 52
Chris@147 53 QString toDelimitedDataString(QString delimiter, size_t sampleRate) const
Chris@147 54 {
Chris@147 55 QStringList list;
Chris@147 56 list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str();
Chris@147 57 list << QString("%1").arg(value);
Chris@147 58 list << QString("%1").arg(duration);
Chris@147 59 list << label;
Chris@147 60 return list.join(delimiter);
Chris@147 61 }
Chris@147 62
Chris@147 63 struct Comparator {
Chris@147 64 bool operator()(const Note &p1,
Chris@147 65 const Note &p2) const {
Chris@147 66 if (p1.frame != p2.frame) return p1.frame < p2.frame;
Chris@147 67 if (p1.value != p2.value) return p1.value < p2.value;
Chris@147 68 if (p1.duration != p2.duration) return p1.duration < p2.duration;
Chris@147 69 return p1.label < p2.label;
Chris@147 70 }
Chris@147 71 };
Chris@147 72
Chris@147 73 struct OrderComparator {
Chris@147 74 bool operator()(const Note &p1,
Chris@147 75 const Note &p2) const {
Chris@147 76 return p1.frame < p2.frame;
Chris@147 77 }
Chris@147 78 };
Chris@147 79 };
Chris@147 80
Chris@147 81
Chris@147 82 class NoteModel : public SparseValueModel<Note>
Chris@147 83 {
Chris@147 84 public:
Chris@147 85 NoteModel(size_t sampleRate, size_t resolution,
Chris@147 86 float valueMinimum, float valueMaximum,
Chris@147 87 bool notifyOnAdd = true) :
Chris@147 88 SparseValueModel<Note>(sampleRate, resolution,
Chris@147 89 valueMinimum, valueMaximum,
Chris@147 90 notifyOnAdd),
Chris@147 91 m_valueQuantization(0)
Chris@147 92 {
Chris@147 93 PlayParameterRepository::getInstance()->addModel(this);
Chris@147 94 }
Chris@147 95
Chris@147 96 float getValueQuantization() const { return m_valueQuantization; }
Chris@147 97 void setValueQuantization(float q) { m_valueQuantization = q; }
Chris@147 98
Chris@147 99 /**
Chris@147 100 * Notes have a duration, so this returns all points that span any
Chris@147 101 * of the given range (as well as the usual additional few before
Chris@147 102 * and after). Consequently this can be very slow (optimised data
Chris@147 103 * structures still to be done!).
Chris@147 104 */
Chris@147 105 virtual PointList getPoints(long start, long end) const;
Chris@147 106
Chris@147 107 /**
Chris@147 108 * Notes have a duration, so this returns all points that span the
Chris@147 109 * given frame. Consequently this can be very slow (optimised
Chris@147 110 * data structures still to be done!).
Chris@147 111 */
Chris@147 112 virtual PointList getPoints(long frame) const;
Chris@147 113
Chris@147 114 virtual QString toXmlString(QString indent = "",
Chris@147 115 QString extraAttributes = "") const
Chris@147 116 {
Chris@147 117 return SparseValueModel<Note>::toXmlString
Chris@147 118 (indent,
Chris@147 119 QString("%1 valueQuantization=\"%2\"")
Chris@147 120 .arg(extraAttributes).arg(m_valueQuantization));
Chris@147 121 }
Chris@147 122
Chris@147 123 protected:
Chris@147 124 float m_valueQuantization;
Chris@147 125 };
Chris@147 126
Chris@147 127 #endif