path: root/src/plugins/Input/wildmidi/decoderwildmidifactory.cpp

/***************************************************************************
 *   Copyright (C) 2008-2018 by Ilya Kotov                                 *
 *   forkotov02@ya.ru                                                      *
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/

#include <QMessageBox>
#include "wildmidihelper.h"
#include "decoder_wildmidi.h"
#include "settingsdialog.h"
#include "decoderwildmidifactory.h"

// DecoderWildMidiFactory

DecoderWildMidiFactory::DecoderWildMidiFactory()
{
    new WildMidiHelper(qApp);
}

bool DecoderWildMidiFactory::canDecode(QIODevice *input) const
{
    char buf[4];
    if(input->peek(buf, 4) != 4)
        return false;
#if defined(LIBWILDMIDI_VERSION) && (LIBWILDMIDI_VERSION >= 0x000400)
    return !memcmp(buf, "MThd", 4) || !memcmp(buf, "MUS", 3) || !memcmp(buf, "FORM", 4);
#else
    return !memcmp(buf, "MThd", 4);
#endif
}

DecoderProperties DecoderWildMidiFactory::properties() const
{
    DecoderProperties properties;
    properties.name = tr("WildMidi Plugin");
    properties.filters << "*.mid";
#if defined(LIBWILDMIDI_VERSION) && (LIBWILDMIDI_VERSION >= 0x000400)
    properties.filters << "*.mus" << "*.xmi";
#endif
    properties.description = tr("Midi Files");
    //properties.contentType = ;
    properties.shortName = "wildmidi";
    properties.hasAbout = true;
    properties.hasSettings = true;
    properties.noInput = true;
    properties.protocols << "file";
    return properties;
}

Decoder *DecoderWildMidiFactory::create(const QString &path, QIODevice *input)
{
    Q_UNUSED(input);
    return new DecoderWildMidi(path);
}

QList<TrackInfo *> DecoderWildMidiFactory::createPlayList(const QString &path, TrackInfo::Parts parts, QStringList *)
{
    TrackInfo *info = new TrackInfo(path);
    WildMidiHelper *helper = WildMidiHelper::instance();

    if((parts & TrackInfo::Properties) && helper->initialize() && helper->sampleRate())
    {
        void *midi_ptr = WildMidi_Open (path.toLocal8Bit().constData());
        if(midi_ptr)
        {
            WildMidiHelper::instance()->addPtr(midi_ptr);
            _WM_Info *wm_info = WildMidi_GetInfo(midi_ptr);
            info->setValue(Qmmp::SAMPLERATE, helper->sampleRate());
            info->setDuration((qint64)wm_info->approx_total_samples * 1000 / helper->sampleRate());
            WildMidi_Close(midi_ptr);
            WildMidiHelper::instance()->removePtr(midi_ptr);
        }
    }
    return QList<TrackInfo *>() << info;
}

MetaDataModel* DecoderWildMidiFactory::createMetaDataModel(const QString &path, bool readOnly)
{
    Q_UNUSED(path);
    Q_UNUSED(readOnly);
    return 0;
}

void DecoderWildMidiFactory::showSettings(QWidget *parent)
{
    SettingsDialog *d = new SettingsDialog(parent);
    d->show();
}

void DecoderWildMidiFactory::showAbout(QWidget *parent)
{
    QMessageBox::about (parent, tr("About WildMidi Audio Plugin"),
                        tr("Qmmp WildMidi Audio Plugin")+"\n"+
                        tr("This plugin uses WildMidi library to play midi files")+"\n"+
                        tr("Written by: Ilya Kotov <forkotov02@ya.ru>"));
}

QString DecoderWildMidiFactory::translation() const
{
    return QLatin1String(":/wildmidi_plugin_");
}