Chris@147: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@147: 
Chris@147: /*
Chris@147:     Sonic Visualiser
Chris@147:     An audio file viewer and annotation editor.
Chris@147:     Centre for Digital Music, Queen Mary, University of London.
Chris@147:     This file copyright 2006 Chris Cannam.
Chris@147:     
Chris@147:     This program is free software; you can redistribute it and/or
Chris@147:     modify it under the terms of the GNU General Public License as
Chris@147:     published by the Free Software Foundation; either version 2 of the
Chris@147:     License, or (at your option) any later version.  See the file
Chris@147:     COPYING included with this distribution for more information.
Chris@147: */
Chris@147: 
Chris@147: #ifndef _NOTE_MODEL_H_
Chris@147: #define _NOTE_MODEL_H_
Chris@147: 
Chris@147: #include "SparseValueModel.h"
Chris@150: #include "base/PlayParameterRepository.h"
Chris@147: #include "base/RealTime.h"
Chris@147: 
Chris@147: /**
Chris@147:  * Note type for use in a SparseModel or SparseValueModel.  All we
Chris@147:  * mean by a "note" is something that has an onset time, a single
Chris@147:  * value, and a duration.  Like other points, it can also have a
Chris@147:  * label.  With this point type, the model can be thought of as
Chris@147:  * representing a simple MIDI-type piano roll, except that the y
Chris@147:  * coordinates (values) do not have to be discrete integers.
Chris@147:  */
Chris@147: 
Chris@147: struct Note
Chris@147: {
Chris@147: public:
Chris@147:     Note(long _frame) : frame(_frame), value(0.0f), duration(0) { }
Chris@147:     Note(long _frame, float _value, size_t _duration, QString _label) :
Chris@147: 	frame(_frame), value(_value), duration(_duration), label(_label) { }
Chris@147: 
Chris@147:     int getDimensions() const { return 3; }
Chris@147: 
Chris@147:     long frame;
Chris@147:     float value;
Chris@147:     size_t duration;
Chris@147:     QString label;
Chris@147: 
Chris@314:     void toXml(QTextStream &stream,
Chris@314:                QString indent = "",
Chris@314:                QString extraAttributes = "") const
Chris@147:     {
Chris@314: 	stream <<
Chris@314:             QString("%1<point frame=\"%2\" value=\"%3\" duration=\"%4\" label=\"%5\" %6/>\n")
Chris@147: 	    .arg(indent).arg(frame).arg(value).arg(duration).arg(label).arg(extraAttributes);
Chris@147:     }
Chris@147: 
Chris@147:     QString toDelimitedDataString(QString delimiter, size_t sampleRate) const
Chris@147:     {
Chris@147:         QStringList list;
Chris@147:         list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str();
Chris@147:         list << QString("%1").arg(value);
Chris@147:         list << QString("%1").arg(duration);
Chris@147:         list << label;
Chris@147:         return list.join(delimiter);
Chris@147:     }
Chris@147: 
Chris@147:     struct Comparator {
Chris@147: 	bool operator()(const Note &p1,
Chris@147: 			const Note &p2) const {
Chris@147: 	    if (p1.frame != p2.frame) return p1.frame < p2.frame;
Chris@147: 	    if (p1.value != p2.value) return p1.value < p2.value;
Chris@147: 	    if (p1.duration != p2.duration) return p1.duration < p2.duration;
Chris@147: 	    return p1.label < p2.label;
Chris@147: 	}
Chris@147:     };
Chris@147:     
Chris@147:     struct OrderComparator {
Chris@147: 	bool operator()(const Note &p1,
Chris@147: 			const Note &p2) const {
Chris@147: 	    return p1.frame < p2.frame;
Chris@147: 	}
Chris@147:     };
Chris@147: };
Chris@147: 
Chris@147: 
Chris@147: class NoteModel : public SparseValueModel<Note>
Chris@147: {
Chris@147: public:
Chris@147:     NoteModel(size_t sampleRate, size_t resolution,
Chris@256: 	      bool notifyOnAdd = true) :
Chris@256: 	SparseValueModel<Note>(sampleRate, resolution,
Chris@256: 			       notifyOnAdd),
Chris@256: 	m_valueQuantization(0)
Chris@256:     {
Chris@256: 	PlayParameterRepository::getInstance()->addModel(this);
Chris@256:     }
Chris@256: 
Chris@256:     NoteModel(size_t sampleRate, size_t resolution,
Chris@147: 	      float valueMinimum, float valueMaximum,
Chris@147: 	      bool notifyOnAdd = true) :
Chris@147: 	SparseValueModel<Note>(sampleRate, resolution,
Chris@147: 			       valueMinimum, valueMaximum,
Chris@147: 			       notifyOnAdd),
Chris@147: 	m_valueQuantization(0)
Chris@147:     {
Chris@147: 	PlayParameterRepository::getInstance()->addModel(this);
Chris@147:     }
Chris@147: 
Chris@147:     float getValueQuantization() const { return m_valueQuantization; }
Chris@147:     void setValueQuantization(float q) { m_valueQuantization = q; }
Chris@147: 
Chris@147:     /**
Chris@147:      * Notes have a duration, so this returns all points that span any
Chris@147:      * of the given range (as well as the usual additional few before
Chris@147:      * and after).  Consequently this can be very slow (optimised data
Chris@147:      * structures still to be done!).
Chris@147:      */
Chris@147:     virtual PointList getPoints(long start, long end) const;
Chris@147: 
Chris@147:     /**
Chris@147:      * Notes have a duration, so this returns all points that span the
Chris@147:      * given frame.  Consequently this can be very slow (optimised
Chris@147:      * data structures still to be done!).
Chris@147:      */
Chris@147:     virtual PointList getPoints(long frame) const;
Chris@147: 
Chris@288:     virtual void toXml(QTextStream &out,
Chris@288:                        QString indent = "",
Chris@288:                        QString extraAttributes = "") const
Chris@147:     {
Chris@314:         SparseValueModel<Note>::toXml
Chris@288: 	    (out,
Chris@288:              indent,
Chris@147: 	     QString("%1 valueQuantization=\"%2\"")
Chris@147: 	     .arg(extraAttributes).arg(m_valueQuantization));
Chris@147:     }
Chris@147: 
Chris@147: protected:
Chris@147:     float m_valueQuantization;
Chris@147: };
Chris@147: 
Chris@147: #endif