view data/model/Model.cpp @ 490:c3fb8258e34d

* Make it possible to import an entire session from an RDF document.
  However, at the moment the timings of events appear to be constrained
  by how far the audio decoder has got through its audio file at the
  time the event is queried -- need to investigate.

/* -*- 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.
*/

#include "Model.h"
#include "AlignmentModel.h"

#include <QTextStream>

#include <iostream>

const int Model::COMPLETION_UNKNOWN = -1;

Model::~Model()
{
    std::cerr << "Model::~Model(" << this << ")" << std::endl;

    if (!m_aboutToDelete) {
        std::cerr << "NOTE: Model::~Model(" << this << ", \""
                  << objectName().toStdString() << "\"): Model deleted "
                  << "with no aboutToDelete notification" << std::endl;
    }

    if (m_alignment) {
        m_alignment->aboutToDelete();
        delete m_alignment;
    }
}

void
Model::setSourceModel(Model *model)
{
    if (m_sourceModel) {
        disconnect(m_sourceModel, SIGNAL(aboutToBeDeleted()),
                   this, SLOT(sourceModelAboutToBeDeleted()));
    }

    m_sourceModel = model;

    if (m_sourceModel) {
        connect(m_sourceModel, SIGNAL(alignmentCompletionChanged()),
                this, SIGNAL(alignmentCompletionChanged()));
        connect(m_sourceModel, SIGNAL(aboutToBeDeleted()),
                this, SLOT(sourceModelAboutToBeDeleted()));
    }
}

void
Model::aboutToDelete()
{
    std::cerr << "Model(" << this << ")::aboutToDelete()" << std::endl;

    if (m_aboutToDelete) {
        std::cerr << "WARNING: Model(" << this << ", \""
                  << objectName().toStdString() << "\")::aboutToDelete: "
                  << "aboutToDelete called more than once for the same model"
                  << std::endl;
    }

    emit aboutToBeDeleted();
    m_aboutToDelete = true;
}

void
Model::sourceModelAboutToBeDeleted()
{
    m_sourceModel = 0;
}

void
Model::setAlignment(AlignmentModel *alignment)
{
    if (m_alignment) {
        m_alignment->aboutToDelete();
        delete m_alignment;
    }
    m_alignment = alignment;
    connect(m_alignment, SIGNAL(completionChanged()),
            this, SIGNAL(alignmentCompletionChanged()));
}

const AlignmentModel *
Model::getAlignment() const
{
    return m_alignment;
}

const Model *
Model::getAlignmentReference() const
{
    if (!m_alignment) {
        if (m_sourceModel) return m_sourceModel->getAlignmentReference();
        return 0;
    }
    return m_alignment->getReferenceModel();
}

size_t
Model::alignToReference(size_t frame) const
{
    if (!m_alignment) {
        if (m_sourceModel) return m_sourceModel->alignToReference(frame);
        else return frame;
    }
    size_t refFrame = m_alignment->toReference(frame);
    const Model *m = m_alignment->getReferenceModel();
    if (m && refFrame > m->getEndFrame()) refFrame = m->getEndFrame();
    return refFrame;
}

size_t
Model::alignFromReference(size_t refFrame) const
{
    if (!m_alignment) {
        if (m_sourceModel) return m_sourceModel->alignFromReference(refFrame);
        else return refFrame;
    }
    size_t frame = m_alignment->fromReference(refFrame);
    if (frame > getEndFrame()) frame = getEndFrame();
    return frame;
}

int
Model::getAlignmentCompletion() const
{
//    std::cerr << "Model::getAlignmentCompletion" << std::endl;
    if (!m_alignment) {
        if (m_sourceModel) return m_sourceModel->getAlignmentCompletion();
        else return 100;
    }
    int completion = 0;
    (void)m_alignment->isReady(&completion);
//    std::cerr << " -> " << completion << std::endl;
    return completion;
}

QString
Model::getTitle() const
{
    if (m_sourceModel) return m_sourceModel->getTitle();
    else return "";
}

QString
Model::getMaker() const
{
    if (m_sourceModel) return m_sourceModel->getMaker();
    else return "";
}

QString
Model::getLocation() const
{
    if (m_sourceModel) return m_sourceModel->getLocation();
    else return "";
}

void
Model::toXml(QTextStream &stream, QString indent,
             QString extraAttributes) const
{
    stream << indent;
    stream << QString("<model id=\"%1\" name=\"%2\" sampleRate=\"%3\" start=\"%4\" end=\"%5\" %6/>\n")
	.arg(getObjectExportId(this))
	.arg(encodeEntities(objectName()))
	.arg(getSampleRate())
	.arg(getStartFrame())
	.arg(getEndFrame())
	.arg(extraAttributes);
}