NoteModel.h

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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/PlayParameterRepository.h"
#include "base/RealTime.h"

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()->addModel(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()->addModel(this);
    }

    float getValueQuantization() const { return m_valueQuantization; }
    void setValueQuantization(float q) { m_valueQuantization = q; }

    virtual PointList getPoints(long start, long end) const;

    virtual PointList getPoints(long frame) const;

    QString getTypeName() const { return tr("Note"); }

    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

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