main.cpp

LINUX下的混音软件

    KCmdLineArgs::init( argc, argv, &aboutData );
    KCmdLineArgs::addCmdLineOptions( options ); // Add our own options.
    KUniqueApplication::addCmdLineOptions(); // Add KUniqueApplication options.

    if (!RosegardenApplication::start())
        return 0;

    RosegardenApplication app;

    //
    // Ensure quit on last window close
    // Register main DCOP interface
    //
    QObject::connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
    app.dcopClient()->registerAs(app.name(), false);
    app.dcopClient()->setDefaultObject(ROSEGARDEN_GUI_IFACE_NAME);

    // Parse cmd line args
    //
    KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

    if (!args->isSet("ignoreversion")) {
        // Give up immediately if we haven't been installed or if the
        // installation is out of date
        //
        testInstalledVersion();
    }

    KConfig *config = kapp->config();

    // If there is no config setting for the startup window size, set
    // one now.  But base the default on the appropriate desktop size
    // (i.e. not the entire desktop, if Xinerama is in use).  This is
    // obtained from KGlobalSettings::desktopGeometry(), but we can't
    // give it a meaningful point to measure from at this stage so we
    // always use the "leftmost" display (point 0,0).

    // The config keys are "Height X" and "Width Y" where X and Y are
    // the sizes of the available desktop (i.e. the whole shebang if
    // under Xinerama).  These are obtained from QDesktopWidget.

    config->setGroup("MainView");

    QDesktopWidget *desktop = KApplication::desktop();
    if (desktop) {
	QRect totalRect(desktop->availableGeometry());
	QRect desktopRect = KGlobalSettings::desktopGeometry(QPoint(0, 0));
	QSize startupSize;
	if (desktopRect.height() <= 800) {
	    startupSize = QSize((desktopRect.width() * 6) / 7,
				(desktopRect.height() * 6) / 7);
	} else {
	    startupSize = QSize((desktopRect.width() * 4) / 5,
				(desktopRect.height() * 4) / 5);
	}
	QString widthKey = QString("Width %1").arg(totalRect.width());
	QString heightKey = QString("Height %1").arg(totalRect.height());
	if (!config->hasKey(widthKey)) {
	    config->writeEntry(widthKey, startupSize.width());
	}
	if (!config->hasKey(heightKey)) {
	    config->writeEntry(heightKey, startupSize.height());
	}
    }

    config->setGroup("KDE Action Restrictions");
    config->writeEntry("action/help_report_bug", false);

    config->setGroup(GeneralOptionsConfigGroup);
    int install = config->readNumEntry("Install Own Theme", 1);
    if (install == 2 || (install == 1 && !getenv("KDE_FULL_SESSION"))) {
	kapp->setStyle(new KlearlookStyle);
    }

    // Show Startup logo
    // (this code borrowed from KDevelop 2.0,
    // (c) The KDevelop Development Team
    //
    config->setGroup(GeneralOptionsConfigGroup);
    KStartupLogo* startLogo = 0L;

    // See if the config wants us to control JACK
    //
    if (config->readBoolEntry("Logo", true) && (!kapp->isRestored() && args->isSet("splash")) ) {
        RG_DEBUG << k_funcinfo << "Showing startup logo\n";
        startLogo = KStartupLogo::getInstance();
        startLogo->show();
    }

    struct timeval logoShowTime;
    gettimeofday(&logoShowTime, 0);

    //
    // Start application
    //
    RosegardenGUIApp *rosegardengui = 0;

    if (app.isRestored()) {
        RG_DEBUG << "Restoring from session\n";

        // RESTORE(RosegardenGUIApp);
        int n = 1;
        while (KMainWindow::canBeRestored(n)) {
            // memory leak if more than one can be restored?
            RG_DEBUG << "Restoring from session - restoring app #" << n << endl;
            (rosegardengui = new RosegardenGUIApp)->restore(n);
            n++;
        }

    } else {

#ifndef NO_SOUND
        app.setNoSequencerMode(!args->isSet("sequencer"));
#else

        app.setNoSequencerMode(true);
#endif // NO_SOUND

        rosegardengui = new RosegardenGUIApp(!app.noSequencerMode(),
                                             args->isSet("existingsequencer"),
                                             startLogo);

        app.setMainWidget(rosegardengui);

        rosegardengui->show();

        // raise start logo
        //
        if (startLogo) {
            startLogo->raise();
            startLogo->setHideEnabled(true);
            QApplication::flushX();
        }

        if (args->count()) {
            rosegardengui->openFile(QFile::decodeName(args->arg(0)), RosegardenGUIApp::ImportCheckType);
        } else {
            // rosegardengui->openDocumentFile();
        }

        args->clear();

    }

    QObject::connect(&app, SIGNAL(aboutToSaveState()),
                     rosegardengui, SLOT(slotDeleteTransport()));

    // Now that we've started up, raise start logo
    //
    if (startLogo) {
        startLogo->raise();
        startLogo->setHideEnabled(true);
        QApplication::flushX();
    }

    // Check for sequencer and launch if needed
    //
    try {
        rosegardengui->launchSequencer(args->isSet("existingsequencer"));
    } catch (std::string e) {
        RG_DEBUG << "RosegardenGUI - " << e << endl;
    } catch (QString e) {
        RG_DEBUG << "RosegardenGUI - " << e << endl;
    } catch (Exception e) {
        RG_DEBUG << "RosegardenGUI - " << e.getMessage() << endl;
    }

    if (startLogo) {

        // pause to ensure the logo has been visible for a reasonable
        // length of time, just 'cos it looks a bit silly to show it
        // and remove it immediately

        struct timeval now;
        gettimeofday(&now, 0);

        RealTime visibleFor =
            RealTime(now.tv_sec, now.tv_usec * 1000) -
            RealTime(logoShowTime.tv_sec, logoShowTime.tv_usec * 1000);

        if (visibleFor < RealTime(2, 0)) {
            int waitTime = visibleFor.sec * 1000 + visibleFor.msec();
            QTimer::singleShot(2500 - waitTime, startLogo, SLOT(close()));
        } else {
            startLogo->close();
        }

    } else {

        // if the start logo is there, it's responsible for showing this;
        // otherwise we have to

        RG_DEBUG << "main: Showing Tips\n";
        KTipDialog::showTip(locate("data", "rosegarden/tips"));
    }


    config->setGroup(SequencerOptionsConfigGroup);

    // See if the config wants us to load a soundfont
    //
    if (config->readBoolEntry("sfxloadenabled", false)) {
        QString sfxLoadPath = config->readEntry("sfxloadpath", "/bin/sfxload");
        QString soundFontPath = config->readEntry("soundfontpath", "");
        QFileInfo sfxLoadInfo(sfxLoadPath), soundFontInfo(soundFontPath);
        if (sfxLoadInfo.isExecutable() && soundFontInfo.isReadable()) {
            KProcess* sfxLoadProcess = new KProcess;
            (*sfxLoadProcess) << sfxLoadPath << soundFontPath;
            RG_DEBUG << "Starting sfxload : " << sfxLoadPath << " " << soundFontPath << endl;

            QObject::connect(sfxLoadProcess, SIGNAL(processExited(KProcess*)),
                             &app, SLOT(sfxLoadExited(KProcess*)));

            sfxLoadProcess->start();
        } else {
            RG_DEBUG << "sfxload not executable or soundfont not readable : "
            << sfxLoadPath << " " << soundFontPath << endl;
        }

    } else {
        RG_DEBUG << "sfxload disabled\n";
    }


#ifdef Q_WS_X11
    XSetErrorHandler( _x_errhandler );
#endif

    return kapp->exec();
}