annotate src/main.cpp @ 70:5310637392f6

Revert to using three separate tool modes (more like SV). This is less like the proposed design for Tony but better than the previous situation with two incomprehensible toggle buttons.

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

/*
    Tony
    An intonation analysis and annotation tool
    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 "transform/TransformFactory.h"

#include <QMetaType>
#include <QApplication>
#include <QDesktopWidget>
#include <QMessageBox>
#include <QTranslator>
#include <QLocale>
#include <QSettings>
#include <QIcon>
#include <QSessionManager>
#include <QSplashScreen>
#include <QFileOpenEvent>
#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

    cerr << "signalHandler: cleaning up and exiting" << endl;
    cleanupMutex.lock();
    if (!cleanedUp) {
        TempDirectory::getInstance()->cleanup();
        cleanedUp = true;
    }
    cleanupMutex.unlock();
    exit(0);
}

class TonyApplication : public QApplication
{
public:
    TonyApplication(int argc, char **argv) :
        QApplication(argc, argv),
        m_mainWindow(0),
        m_readyForFiles(false)
    {
#ifdef Q_OS_MAC
        // Override the Qt plugin load path. The default contains the
        // Qt installation location as well as the application
        // directory, but we don't ever want to load plugins from
        // outside the app bundle because we don't know for sure what
        // (potentially different) versions of the Qt framework
        // libraries they may have dyld dependencies on.
        QString apploc(applicationFilePath());
        apploc.truncate(apploc.lastIndexOf(QLatin1Char('/')));
        apploc = QDir(apploc).canonicalPath();
        if (QFile::exists(apploc)) {
            setLibraryPaths(QStringList() << apploc);
        } else {
            setLibraryPaths(QStringList());
        }
#endif
    }
    virtual ~TonyApplication() {
    }

    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();
    }

    void readyForFiles() {
        m_readyForFiles = true;
    }

    void handleFilepathArgument(QString path, QSplashScreen *splash);

    void handleQueuedPaths(QSplashScreen *splash) {
        foreach (QString f, m_filepathQueue) {
            handleFilepathArgument(f, splash);
        }
    }
    
protected:
    MainWindow *m_mainWindow;
    
    bool m_readyForFiles;
    QStringList m_filepathQueue;

    virtual bool event(QEvent *event) {
        switch (event->type()) {
        case QEvent::FileOpen:
        {
            QString path = static_cast<QFileOpenEvent *>(event)->file();
            if (m_readyForFiles) {
                handleFilepathArgument(path, NULL);
            } else {
                m_filepathQueue.append(path);
            }
            return true;
        }
        default:
            return QApplication::event(event);
        }
    }
};
        
int
main(int argc, char **argv)
{
    svSystemSpecificInitialisation();

    TonyApplication application(argc, argv);

    QStringList args = application.arguments();

    signal(SIGINT,  signalHandler);
    signal(SIGTERM, signalHandler);

#ifndef Q_OS_WIN32
    signal(SIGHUP,  signalHandler);
    signal(SIGQUIT, signalHandler);
#endif

    bool audioOutput = true;

    if (args.contains("--help") || args.contains("-h") || args.contains("-?")) {
        std::cerr << QApplication::tr(
            "\nTony is a program for interactive note and pitch analysis and annotation.\n\nUsage:\n\n  %1 [--no-audio] [--no-osc] [<file> ...]\n\n  --no-audio: Do not attempt to open an audio output device\n  <file>: One or more Tony (.ton) and audio files may be provided.\n").arg(argv[0]).toStdString() << std::endl;
        exit(2);
    }

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

    QApplication::setOrganizationName("QMUL");
    QApplication::setOrganizationDomain("qmul.ac.uk");
    QApplication::setApplicationName("Tony");

    QSplashScreen *splash = 0;
    // If we had a splash screen, we would show it here

    QIcon icon;
    int sizes[] = { 16, 22, 24, 32, 48, 64, 128 };
    for (size_t i = 0; i < sizeof(sizes)/sizeof(sizes[0]); ++i) {
        icon.addFile(QString(":icons/tony-%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(qtTrName))) {
        QString qtDir = getenv("QTDIR");
        if (qtDir != "") {
            success = qtTranslator.load
                (qtTrName, QDir(qtDir).filePath("translations"));
        }
    }
    if (!success) {
        std::cerr << "Failed to load Qt translation for locale" << std::endl;
    }
    application.installTranslator(&qtTranslator);

    StoreStartupLocale();

    // Permit size_t and PropertyName to be used as args in queued signal calls
    qRegisterMetaType<size_t>("size_t");
    qRegisterMetaType<PropertyContainer::PropertyName>("PropertyContainer::PropertyName");

    MainWindow *gui = new MainWindow(audioOutput, false); // no osc support
    application.setMainWindow(gui);
    if (splash) {
        QObject::connect(gui, SIGNAL(hideSplash()), splash, SLOT(hide()));
    }

    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());
        }
    }
    settings.endGroup();
    
    gui->show();

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

        if (i == args.begin()) continue;
        if (i->startsWith('-')) continue;

        QString path = *i;

        application.handleFilepathArgument(path, splash);
    }

    application.handleQueuedPaths(splash);
        
    if (splash) splash->finish(gui);
    delete splash;

    int rv = application.exec();

    gui->hide();

    cleanupMutex.lock();

    if (!cleanedUp) {
        TransformFactory::deleteInstance();
        TempDirectory::getInstance()->cleanup();
        cleanedUp = true;
    }

    application.releaseMainWindow();

    delete gui;

    cleanupMutex.unlock();

    return rv;
}

/** Application-global handler for filepaths passed in, e.g. as
 * command-line arguments or apple events */

void TonyApplication::handleFilepathArgument(QString path,
                                             QSplashScreen *splash)
{
    static bool haveSession = false;
    static bool haveMainModel = false;
    static bool havePriorCommandLineModel = false;

    MainWindow::FileOpenStatus status = MainWindow::FileOpenFailed;

    if (path.endsWith("ton")) {
        if (!haveSession) {
            status = m_mainWindow->openSessionFile(path);
            if (status == MainWindow::FileOpenSucceeded) {
                haveSession = true;
                haveMainModel = true;
            }
        } else {
            std::cerr << "WARNING: Ignoring additional session file argument \"" << path << "\"" << std::endl;
            status = MainWindow::FileOpenSucceeded;
        }
    }
    if (status != MainWindow::FileOpenSucceeded) {
        if (!haveMainModel) {
            status = m_mainWindow->open(path, MainWindow::ReplaceSession);
            if (status == MainWindow::FileOpenSucceeded) {
                haveMainModel = true;
            }
        } else {
            if (haveSession && !havePriorCommandLineModel) {
                status = m_mainWindow->open(path, MainWindow::AskUser);
                if (status == MainWindow::FileOpenSucceeded) {
                    havePriorCommandLineModel = true;
                }
            } else {
                status = m_mainWindow->open(path, MainWindow::CreateAdditionalModel);
            }
        }
    }
    if (status == MainWindow::FileOpenFailed) {
        if (splash) splash->hide();
        QMessageBox::critical
            (m_mainWindow, QMessageBox::tr("Failed to open file"),
             QMessageBox::tr("File or URL \"%1\" could not be opened").arg(path));
    } else if (status == MainWindow::FileOpenWrongMode) {
        if (splash) splash->hide();
        QMessageBox::critical
            (m_mainWindow, QMessageBox::tr("Failed to open file"),
             QMessageBox::tr("<b>Audio required</b><p>Please load at least one audio file before importing annotation data"));
    }
}