qt4.cpp

VLC Player Source Code

    }

    vlc_object_release( p_intf->p_sys->p_playlist );
    msg_Unsubscribe( p_intf, p_intf->p_sys->p_sub );
    free( p_intf->p_sys );
}


/*****************************************************************************
 * Initialize the interface or the dialogs provider
 *****************************************************************************/
static void Run( intf_thread_t *p_intf )
{
    if( p_intf->pf_show_dialog )
    {
        if( vlc_thread_create( p_intf, "Qt dialogs", Init, 0, true ) )
            msg_Err( p_intf, "failed to create Qt dialogs thread" );
    }
    else
        Init( VLC_OBJECT(p_intf) );
}

static QMutex windowLock;
static QWaitCondition windowWait;

static void *Init( vlc_object_t *obj )
{
    intf_thread_t *p_intf = (intf_thread_t *)obj;
    vlc_value_t val;
    char dummy[] = "";
    char *argv[] = { dummy };
    int argc = 1;

    Q_INIT_RESOURCE( vlc );

#if !defined(WIN32) && !defined(__APPLE__)
    /* KLUDGE:
     * disables icon theme use because that makes Cleanlooks style bug
     * because it asks gconf for some settings that timeout because of threads
     * see commits 21610 21622 21654 for reference */

    /* If you don't have a gconftool-2 binary, you should comment this line */
    if( strcmp( qVersion(), "4.4.0" ) < 0 ) /* fixed in Qt 4.4.0 */
        QApplication::setDesktopSettingsAware( false );
#endif

    /* Start the QApplication here */
    QApplication *app = new QApplication( argc, argv , true );
    p_intf->p_sys->p_app = app;

    p_intf->p_sys->mainSettings = new QSettings(
#ifdef WIN32
            QSettings::IniFormat,
#else
            QSettings::NativeFormat,
#endif
            QSettings::UserScope, "vlc", "vlc-qt-interface" );

    /* Icon setting */
    if( QDate::currentDate().dayOfYear() >= 354 )
        app->setWindowIcon( QIcon( QPixmap(vlc_christmas_xpm) ) );
    else
        app->setWindowIcon( QIcon( QPixmap(vlc_xpm) ) );

    /* Initialize timers and the Dialog Provider */
    DialogsProvider::getInstance( p_intf );

    QPointer<MainInterface> *miP = NULL;

#ifdef UPDATE_CHECK
    /* Checking for VLC updates */
    if( config_GetInt( p_intf, "qt-updates-notif" ) &&
        !config_GetInt( p_intf, "qt-privacy-ask" ) )
    {
        int interval = config_GetInt( p_intf, "qt-updates-days" );
        if( QDate::currentDate() >
             getSettings()->value( "updatedate" ).toDate().addDays( interval ) )
        {
            /* The constructor of the update Dialog will do the 1st request */
            UpdateDialog::getInstance( p_intf );
            getSettings()->setValue( "updatedate", QDate::currentDate() );
        }
    }
#endif

    /* Create the normal interface in non-DP mode */
    if( !p_intf->pf_show_dialog )
    {
        p_intf->p_sys->p_mi = new MainInterface( p_intf );
        /* We don't show it because it is done in the MainInterface constructor
        p_mi->show(); */
        p_intf->p_sys->b_isDialogProvider = false;

        miP = new QPointer<MainInterface> (p_intf->p_sys->p_mi);
        val.p_address = miP;
        QMutexLocker locker (&windowLock);
        var_Set (p_intf, "window_widget", val);
        windowWait.wakeAll ();
    }
    else
    {
        vlc_thread_ready( p_intf );
        p_intf->p_sys->b_isDialogProvider = true;
    }

    /* Explain to the core how to show a dialog :D */
    p_intf->pf_show_dialog = ShowDialog;

#ifdef ENABLE_NLS
    // Translation - get locale
#   if defined (WIN32) || defined (__APPLE__)
    char* psz_tmp = config_GetPsz( p_intf, "language" );
    QString lang = qfu( psz_tmp );
    free( psz_tmp);
    if (lang == "auto")
        lang = QLocale::system().name();
#   else
    QString lang = QLocale::system().name();
#   endif
    // Translations for qt's own dialogs
    QTranslator qtTranslator( 0 );
    // Let's find the right path for the translation file
#if !defined( WIN32 )
    QString path =  QString( QT4LOCALEDIR );
#else
    QString path = QString( QString(config_GetDataDir()) + DIR_SEP +
                            "locale" + DIR_SEP + "qt4" + DIR_SEP );
#endif
    // files depending on locale
    bool b_loaded = qtTranslator.load( path + "qt_" + lang );
    if (!b_loaded)
        msg_Dbg( p_intf, "Error while initializing qt-specific localization" );
    app->installTranslator( &qtTranslator );
#endif  //ENABLE_NLS

    /* Last settings */
    app->setQuitOnLastWindowClosed( false );

    /* Retrieve last known path used in file browsing */
    char *psz_path = config_GetPsz( p_intf, "qt-filedialog-path" );
    p_intf->p_sys->psz_filepath = EMPTY_STR( psz_path ) ? psz_path
                                                        : config_GetHomeDir();

    /* Launch */
    app->exec();

    /* And quit */
    msg_Dbg( p_intf, "Quitting the Qt4 Interface" );

    if (miP)
    {
        QMutexLocker locker (&windowLock);

        /* We need to warn to detach from any vout before
         * deleting miP (WindowClose will not be called after it) */
        p_intf->p_sys->p_mi->releaseVideo( NULL );

        val.p_address = NULL;
        var_Set (p_intf, "window_widget", val);
        delete miP;
    }

    /* Destroy first the main interface because it is connected to some slots
       in the MainInputManager */
    delete p_intf->p_sys->p_mi;

    /* Destroy all remaining windows,
       because some are connected to some slots
       in the MainInputManager
       Settings must be destroyed after that.
     */
    DialogsProvider::killInstance();

    /* Delete the configuration. Application has to be deleted after that. */
    delete p_intf->p_sys->mainSettings;

    /* Destroy the MainInputManager */
    MainInputManager::killInstance();

    /* Delete the application */
    delete app;

    /* Save the path */
    config_PutPsz( p_intf, "qt-filedialog-path", p_intf->p_sys->psz_filepath );
    free( psz_path );
}

/*****************************************************************************
 * Callback to show a dialog
 *****************************************************************************/
static void ShowDialog( intf_thread_t *p_intf, int i_dialog_event, int i_arg,
                        intf_dialog_args_t *p_arg )
{
    DialogEvent *event = new DialogEvent( i_dialog_event, i_arg, p_arg );
    QApplication::postEvent( THEDP, static_cast<QEvent*>(event) );
}

/*****************************************************************************
 * PopupMenuCB: callback to show the popupmenu.
 *  We don't show the menu directly here because we don't want the
 *  caller to block for a too long time.
 *****************************************************************************/
static int PopupMenuCB( vlc_object_t *p_this, const char *psz_variable,
                        vlc_value_t old_val, vlc_value_t new_val, void *param )
{
    intf_thread_t *p_intf = (intf_thread_t *)param;
    ShowDialog( p_intf, INTF_DIALOG_POPUPMENU, new_val.b_bool, 0 );
    return VLC_SUCCESS;
}

/**
 * Video output window provider
 */
#include <vlc_window.h>

static int WindowControl (vout_window_t *, int, va_list);

static int WindowOpen (vlc_object_t *obj)
{
    vout_window_t *wnd = (vout_window_t *)obj;

    if (config_GetInt (obj, "embedded-video") <= 0)
        return VLC_EGENERIC;

    intf_thread_t *intf = (intf_thread_t *)
        vlc_object_find_name (obj, "qt4", FIND_ANYWHERE);
    if (intf == NULL)
        return VLC_EGENERIC; /* Qt4 not in use */
    assert (intf->i_object_type == VLC_OBJECT_INTF);

    var_Create (intf, "window_widget", VLC_VAR_ADDRESS);

    vlc_value_t ptrval;

    windowLock.lock ();
    msg_Dbg (obj, "waiting for interface...");
    for (;;)
    {
        var_Get (intf, "window_widget", &ptrval);
        if (ptrval.p_address != NULL)
            break;
        windowWait.wait (&windowLock);
    }

    msg_Dbg (obj, "requesting window...");
    QPointer<MainInterface> *miP = (QPointer<MainInterface> *)ptrval.p_address;
    miP = new QPointer<MainInterface> (*miP); /* create our own copy */
    vlc_object_release (intf);

    if (miP->isNull ())
        return VLC_EGENERIC;

    wnd->handle = (*miP)->requestVideo (wnd->vout, &wnd->pos_x, &wnd->pos_y,
                                        &wnd->width, &wnd->height);
    windowLock.unlock ();

    if (!wnd->handle)
        return VLC_EGENERIC;

    wnd->control = WindowControl;
    wnd->p_private = miP;
    return VLC_SUCCESS;
}

static int WindowControl (vout_window_t *wnd, int query, va_list args)
{
    QPointer<MainInterface> *miP = (QPointer<MainInterface> *)wnd->p_private;
    QMutexLocker locker (&windowLock);

    if (miP->isNull ())
        return VLC_EGENERIC;
    return (*miP)->controlVideo (wnd->handle, query, args);
}

static void WindowClose (vlc_object_t *obj)
{
    vout_window_t *wnd = (vout_window_t *)obj;
    QPointer<MainInterface> *miP = (QPointer<MainInterface> *)wnd->p_private;
    QMutexLocker locker (&windowLock);

    if (!miP->isNull ())
        (*miP)->releaseVideo( wnd->handle );
    delete miP;
}