view main/main.cpp @ 118:b4110b17bca8

* Fix #1672407 confused by plugin-named files in cwd (or home?)
* Fix #1491848 crash when loading new file while transform plugin runs
* Fix #1502287 Background remains black after spectrogram layer deleted
* Fix #1604477 Replacing the main audio file silences secondary audio file
* Fix failure to initialise property box layout to last preference on startup
* Fix resample/wrong-rate display in Pane, ensure that right rate is chosen
  if all current models have an acceptable rate even if previous main model
  had a different one
* Fix "global zoom" broken in previous commit
* Some fixes to spectrogram cache area updating (makes spectrogram appear
  more quickly, previously it had a tendency to refresh with empty space)
* Fixes to colour 3d plot normalization

/* -*- 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 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 <QMetaType>
#include <QApplication>
#include <QDesktopWidget>
#include <QMessageBox>
#include <QTranslator>
#include <QLocale>
#include <QSettings>
#include <QIcon>
#include <QSessionManager>

#include <iostream>
#include <signal.h>

static QMutex cleanupMutex;

static void
signalHandler(int /* signal */)
{
    // Avoid this happening more than once across threads

    cleanupMutex.lock();
    std::cerr << "signalHandler: cleaning up and exiting" << std::endl;
    TempDirectory::getInstance()->cleanup();
    exit(0); // without releasing mutex
}

class SVApplication : public QApplication
{
public:
    SVApplication(int argc, char **argv) :
        QApplication(argc, argv),
        m_mainWindow(0) { }
    virtual ~SVApplication() { }

    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)
{
    SVApplication application(argc, argv);

    QStringList args = application.arguments();

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

#ifndef Q_WS_WIN32
    signal(SIGHUP,  signalHandler);
    signal(SIGQUIT, signalHandler);
#endif

    svSystemSpecificInitialisation();

    bool audioOutput = true;
    bool oscSupport = true;

    if (args.contains("--help")) {
        std::cerr << QApplication::tr(
            "\nSonic Visualiser is a program for viewing and exploring audio data\nfor semantic music 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  --no-osc: Do not provide an Open Sound Control port for remote control\n  <file>: One or more Sonic Visualiser (.sv) and audio files may be provided.\n").arg(argv[0]).toStdString() << std::endl;
        exit(2);
    }

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

    QApplication::setOrganizationName("sonic-visualiser");
    QApplication::setOrganizationDomain("sonicvisualiser.org");
    QApplication::setApplicationName("sonic-visualiser");

    QApplication::setWindowIcon(QIcon(":icons/svicon16.png"));

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

    QTranslator qtTranslator;
    QString qtTrName = QString("qt_%1").arg(language);
    std::cerr << "Loading " << qtTrName.toStdString() << "..." << std::endl;
    qtTranslator.load(qtTrName);
    application.installTranslator(&qtTranslator);

    QTranslator svTranslator;
    QString svTrName = QString("sonic-visualiser_%1").arg(language);
    std::cerr << "Loading " << svTrName.toStdString() << "..." << std::endl;
    svTranslator.load(svTrName, ":i18n");
    application.installTranslator(&svTranslator);

    // 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(audioOutput, oscSupport);
    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.resize(size);
    if (settings.contains("position")) {
        gui.move(settings.value("position").toPoint());
    }
    settings.endGroup();
    
    gui.show();

    // The MainWindow class seems to have trouble dealing with this if
    // it tries to adapt to this preference before the constructor is
    // complete.  As a lazy hack, apply it explicitly from here
    gui.preferenceChanged("Property Box Layout");

    bool haveSession = false;
    bool haveMainModel = 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:")) {
            status = gui.openURL(QUrl(*i));
            continue;
        }

        QString path = *i;

        if (path.endsWith("sv")) {
            if (!haveSession) {
                status = gui.openSessionFile(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.openSomeFile(path, MainWindow::ReplaceMainModel);
                if (status == MainWindow::FileOpenSucceeded) haveMainModel = true;
            } else {
                status = gui.openSomeFile(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();

    return rv;
}