Sonic Lineup

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*

    Vect

    An experimental audio player for plural recordings of a work

    Centre for Digital Music, Queen Mary, University of London.

    This file copyright 2006-2012 Chris Cannam and QMUL.

    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 "MainWindow.h"

#include "system/System.h"

#include "system/Init.h"

#include "base/TempDirectory.h"

#include "base/PropertyContainer.h"

#include "base/Preferences.h"

#include "widgets/TipDialog.h"

#include "svcore/plugin/PluginScan.h"

#include <QMetaType>

#include <QApplication>

#include <QDesktopWidget>

#include <QMessageBox>

#include <QTranslator>

#include <QLocale>

#include <QSettings>

#include <QIcon>

#include <QSessionManager>

#include <QDir>

#include <iostream>

#include <signal.h>

static QMutex cleanupMutex;

static bool cleanedUp = false;

static void

signalHandler(int /* signal */)

{

    // Avoid this happening more than once across threads

    std::cerr << "signalHandler: cleaning up and exiting" << std::endl;

    cleanupMutex.lock();

    if (!cleanedUp) {

        TempDirectory::getInstance()->cleanup();

        cleanedUp = true;

    }

    cleanupMutex.unlock();

    exit(0);

}

class VectApplication : public QApplication

{

public:

    VectApplication(int &argc, char **argv) :

        QApplication(argc, argv),

        m_mainWindow(0) { }

    virtual ~VectApplication() { }

    void setMainWindow(MainWindow *mw) { m_mainWindow = mw; }

    void releaseMainWindow() { m_mainWindow = 0; }

    virtual void commitData(QSessionManager &manager) {

        if (!m_mainWindow) return;

        bool mayAskUser = manager.allowsInteraction();

        bool success = m_mainWindow->commitData(mayAskUser);

        manager.release();

        if (!success) manager.cancel();

    }

protected:

    MainWindow *m_mainWindow;

};

int

main(int argc, char **argv)

{

    svSystemSpecificInitialisation();

    VectApplication application(argc, argv);

    QStringList args = application.arguments();

    signal(SIGINT,  signalHandler);

    signal(SIGTERM, signalHandler);

#ifndef Q_OS_WIN32

    signal(SIGHUP,  signalHandler);

    signal(SIGQUIT, signalHandler);

#endif

    svSystemSpecificInitialisation();

    bool audioOutput = true;

    if (args.contains("--help") || args.contains("-h") || args.contains("-?")) {

        std::cerr << QApplication::tr(

            "\nSonic Vector is a comparative viewer for sets of related audio recordings.\n\nUsage:\n\n  %1 [--no-audio] [<file1>, <file2>...]\n\n  --no-audio: Do not attempt to open an audio output device\n  <file1>, <file2>...: Audio files; Sonic Vector is designed for comparative\nviewing of multiple recordings of the same music or other related material.\n").arg(argv[0]).toStdString() << std::endl;

        exit(2);

    }

    if (args.contains("--no-audio")) audioOutput = false;

    QApplication::setOrganizationName("sonic-visualiser");

    QApplication::setOrganizationDomain("sonicvisualiser.org");

    QApplication::setApplicationName("Sonic Vector");

    QIcon icon;

    int sizes[] = { 16, 22, 24, 32, 48, 64, 128 };

    for (int i = 0; i < (int)(sizeof(sizes)/sizeof(sizes[0])); ++i) {

        icon.addFile(QString(":icons/sv-%1x%2.png").arg(sizes[i]).arg(sizes[i]));

    }

    QApplication::setWindowIcon(icon);

    QString language = QLocale::system().name();

    QTranslator qtTranslator;

    QString qtTrName = QString("qt_%1").arg(language);

    std::cerr << "Loading " << qtTrName.toStdString() << "..." << std::endl;

    bool success = false;

    if (!(success = qtTranslator.load(QLocale(), qtTrName))) {

        QString qtDir = getenv("QTDIR");

        if (qtDir != "") {

            success = qtTranslator.load

                (QLocale(), qtTrName, QDir(qtDir).filePath("translations"));

        }

    }

    if (!success) {

        std::cerr << "Failed to load Qt translation for locale" << std::endl;

    }

    application.installTranslator(&qtTranslator);

    QTranslator svisTranslator, svecTranslator;

    QString svisTrName = QString("sonic-visualiser_%1").arg(language);

    QString svecTrName = QString("sonic-vector_%1").arg(language);

    std::cerr << "Loading " << svisTrName.toStdString() << "..." << std::endl;

    svisTranslator.load(QLocale(), svisTrName, ":i18n");

    std::cerr << "Loading " << svisTrName.toStdString() << "..." << std::endl;

    svecTranslator.load(QLocale(), svecTrName, ":i18n");

    application.installTranslator(&svisTranslator);

    application.installTranslator(&svecTranslator);

    StoreStartupLocale();

    // Make known-plugins query as early as possible

    PluginScan::getInstance()->scan();

    // Permit size_t and PropertyName to be used as args in queued signal calls

    qRegisterMetaType<PropertyContainer::PropertyName>("PropertyContainer::PropertyName");

    MainWindow *gui = new MainWindow(audioOutput);

    application.setMainWindow(gui);

    QDesktopWidget *desktop = QApplication::desktop();

    QRect available = desktop->availableGeometry();

    int width = available.width() * 2 / 3;

    int height = available.height() / 2;

    if (height < 450) height = available.height() * 2 / 3;

    if (width > height * 2) width = height * 2;

    QSettings settings;

    settings.beginGroup("MainWindow");

    QSize size = settings.value("size", QSize(width, height)).toSize();

    gui->resizeConstrained(size);

    if (settings.contains("position")) {

        QRect prevrect(settings.value("position").toPoint(), size);

        if (!(available & prevrect).isEmpty()) {

            gui->move(prevrect.topLeft());

        }

    }

    if (settings.value("maximised", false).toBool()) {

        gui->setWindowState(Qt::WindowMaximized);

    }

    settings.endGroup();

    gui->show();

    bool haveSession = false;

    bool haveMainModel = false;

    bool havePriorCommandLineModel = false;

    for (QStringList::iterator i = args.begin(); i != args.end(); ++i) {

        MainWindow::FileOpenStatus status = MainWindow::FileOpenFailed;

        if (i == args.begin()) continue;

        if (i->startsWith('-')) continue;

        if (i->startsWith("http:") || i->startsWith("ftp:")) {

            std::cerr << "opening URL: \"" << i->toStdString() << "\"..." << std::endl;

            status = gui->openPath(*i);

            continue;

        }

        QString path = *i;

        if (QFileInfo(path).isDir()) {

            status = gui->openDirOfAudio(path);

        }

        if (status != MainWindow::FileOpenSucceeded) {

            if (path.endsWith("sv")) {

                if (!haveSession) {

                    status = gui->openSessionPath(path);

                    if (status == MainWindow::FileOpenSucceeded) {

                        haveSession = true;

                        haveMainModel = true;

                    }

                } else {

                    std::cerr << "WARNING: Ignoring additional session file argument \"" << path.toStdString() << "\"" << std::endl;

                    status = MainWindow::FileOpenSucceeded;

                }

            }

        }

        if (status != MainWindow::FileOpenSucceeded) {

            if (!haveMainModel) {

                status = gui->openPath(path, MainWindow::ReplaceSession);

                if (status == MainWindow::FileOpenSucceeded) {

                    haveMainModel = true;

                }

            } else {

                gui->selectMainPane();

                if (haveSession && !havePriorCommandLineModel) {

                    status = gui->openPath(path, MainWindow::AskUser);

                    if (status == MainWindow::FileOpenSucceeded) {

                        havePriorCommandLineModel = true;

                    }

                } else {

                    status = gui->openPath(path, MainWindow::CreateAdditionalModel);

                }

            }

        }

        if (status == MainWindow::FileOpenFailed) {

            QMessageBox::critical

                (gui, QMessageBox::tr("Failed to open file"),

                 QMessageBox::tr("File \"%1\" could not be opened").arg(path));

        }

    }

    int rv = application.exec();

//    std::cerr << "application.exec() returned " << rv << std::endl;

    cleanupMutex.lock();

    TempDirectory::getInstance()->cleanup();

    application.releaseMainWindow();

    delete gui;

    cleanupMutex.unlock();

    return rv;

}