view widgets/MIDIFileImportDialog.cpp @ 959:2633a1d73e39

Address #1214, layer import produces wrong layer type. We needed a more principled approach to making sure the format gets updated properly and the dialog elements are consistent (basically separating making the dialog elements consistent from subsequently updating the format). This change should provide that, though there may be gotchas still.

/* -*- 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 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 "MIDIFileImportDialog.h"

#include <QMessageBox>
#include <QInputDialog>

MIDIFileImportDialog::MIDIFileImportDialog(QWidget *parent) :
    m_parent(parent)
{
}

MIDIFileImportDialog::TrackPreference
MIDIFileImportDialog::getTrackImportPreference(QStringList displayNames,
                                               bool haveSomePercussion,
                                               QString &singleTrack) const
{
    QStringList available;

    QString allTracks = tr("Merge all tracks");
    QString allNonPercussion = tr("Merge all non-percussion tracks");

    singleTrack = "";

    int nonTrackItems = 1;
    
    available << allTracks;

    if (haveSomePercussion) {
        available << allNonPercussion;
        ++nonTrackItems;
    }

    available << displayNames;

    bool ok = false;
    QString selected = QInputDialog::getItem
        (0, tr("Select track or tracks to import"),
         tr("<b>Select track to import</b><p>You can only import this file as a single annotation layer, but the file contains more than one track, or notes on more than one channel.<p>Please select the track or merged tracks you wish to import:"),
         available, 0, false, &ok);
    
    if (!ok || selected.isEmpty()) return ImportNothing;

    TrackPreference pref;
    if (selected == allTracks) pref = MergeAllTracks;
    else if (selected == allNonPercussion) pref = MergeAllNonPercussionTracks;
    else {
        singleTrack = selected;
        pref = ImportSingleTrack;
    }

    return pref;
}

void
MIDIFileImportDialog::showError(QString error)
{
    QMessageBox::critical(0, tr("Error in MIDI file import"), error);
}