pda.c

VLC Player Source Code

    /* Hide the Preference TAB for now. */
    GtkWidget *p_preference_tab = NULL;
    p_preference_tab = gtk_notebook_get_nth_page(p_intf->p_sys->p_notebook,5);
    if (p_preference_tab != NULL)
      gtk_widget_hide(p_preference_tab);

    /* Show the control window */
    gtk_widget_show( p_intf->p_sys->p_window );

#ifdef NEED_GTK2_MAIN
    msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
    while( !intf_ShouldDie( p_intf ) )
    {
        Manage( p_intf );

        /* Sleep to avoid using all CPU - since some interfaces need to
         * access keyboard events, a 100ms delay is a good compromise */
        gdk_threads_leave();
        if (vlc_CPU() & CPU_CAPABILITY_FPU)
            msleep( INTF_IDLE_SLEEP );
        else
            msleep( 1000 );
        gdk_threads_enter();
    }
#else
    msg_Dbg( p_intf, "Manage GTK keyboard events using timeouts" );
    /* Sleep to avoid using all CPU - since some interfaces needs to access
     * keyboard events, a 1000ms delay is a good compromise */
    if (vlc_CPU() & CPU_CAPABILITY_FPU)
        i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage, p_intf );
    else
        i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );

    /* Enter Gtk mode */
    gtk_main();
    /* Remove the timeout */
    gtk_timeout_remove( i_dummy );
#endif

    gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
#ifdef NEED_GTK2_MAIN
    gdk_threads_leave();
#endif
}

/*****************************************************************************
 * GtkAutoplayFile: Autoplay file depending on configuration settings
 *****************************************************************************/
void GtkAutoPlayFile( vlc_object_t *p_this )
{
    GtkWidget *cbautoplay;
    intf_thread_t *p_intf;
    int i_index;
    vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
                                        FIND_ANYWHERE );

    for( i_index = 0; i_index < p_list->i_count; i_index++ )
    {
        p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;

        if( strcmp( MODULE_STRING, module_GetObjName(p_intf->p_module) ) )
        {
            continue;
        }
        cbautoplay = GTK_WIDGET( gtk_object_get_data(
                            GTK_OBJECT( p_intf->p_sys->p_window ),
                            "cbautoplay" ) );

        if( !config_GetInt( p_this, "pda-autoplayfile" ) )
        {
            p_intf->p_sys->b_autoplayfile = false;
        }
        else
        {
            p_intf->p_sys->b_autoplayfile = true;
        }
        gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
                                      p_intf->p_sys->b_autoplayfile );
    }
    vlc_list_release( p_list );
}

/* following functions are local */

/*****************************************************************************
 * Manage: manage main thread messages
 *****************************************************************************
 * In this function, called approx. 10 times a second, we check what the
 * main program wanted to tell us.
 *****************************************************************************/
static int Manage( intf_thread_t *p_intf )
{
    GtkListStore *p_liststore;
    vlc_mutex_lock( &p_intf->change_lock );

    /* Update the input */
    if( p_intf->p_sys->p_input == NULL )
    {
        p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
                                                          FIND_ANYWHERE );
    }
    else if( p_intf->p_sys->p_input->b_dead )
    {
        vlc_object_release( p_intf->p_sys->p_input );
        p_intf->p_sys->p_input = NULL;
    }

    if( p_intf->p_sys->p_input )
    {
        input_thread_t *p_input = p_intf->p_sys->p_input;
        int64_t i_time = 0, i_length = 0;

        vlc_object_lock( p_input );
        if( vlc_object_alive (p_input) )
        {
            playlist_t *p_playlist;

            GtkModeManage( p_intf );
            p_intf->p_sys->b_playing = 1;

            /* update playlist interface */
            p_playlist = pl_Yield( p_intf );
            if (p_playlist != NULL)
            {
                p_liststore = gtk_list_store_new (3,
                                            G_TYPE_STRING,
                                            G_TYPE_STRING,
                                            G_TYPE_UINT);  /* Hidden index */
                PlaylistRebuildListStore(p_intf, p_liststore, p_playlist);
                gtk_tree_view_set_model(p_intf->p_sys->p_tvplaylist, (GtkTreeModel*) p_liststore);
                g_object_unref(p_liststore);
                pl_Release( p_intf );
            }

            /* Manage the slider */
            i_time = var_GetTime( p_intf->p_sys->p_input, "time" );
            i_length = var_GetTime( p_intf->p_sys->p_input, "length" );

            if (vlc_CPU() & CPU_CAPABILITY_FPU)
            {
                /* Manage the slider for CPU_CAPABILITY_FPU hardware */
                if( p_intf->p_sys->b_playing )
                {
                    float newvalue = p_intf->p_sys->p_adj->value;

                    /* If the user hasn't touched the slider since the last time,
                     * then the input can safely change it */
                    if( newvalue == p_intf->p_sys->f_adj_oldvalue )
                    {
                        /* Update the value */
                        p_intf->p_sys->p_adj->value =
                        p_intf->p_sys->f_adj_oldvalue =
                            ( 100 * i_time ) / i_length;
                        g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
                                                 "value_changed" );
                    }
                    /* Otherwise, send message to the input if the user has
                     * finished dragging the slider */
                    else if( p_intf->p_sys->b_slider_free )
                    {
                        double f_pos = (double)newvalue / 100.0;

                        /* release the lock to be able to seek */
                        vlc_object_unlock( p_input );
                        var_SetFloat( p_input, "position", f_pos );
                        vlc_object_lock( p_input );

                        /* Update the old value */
                        p_intf->p_sys->f_adj_oldvalue = newvalue;
                    }
                }
            }
            else
            {
                /* Manage the slider without CPU_CAPABILITY_FPU hardware */
                if( p_intf->p_sys->b_playing )
                {
                    off_t newvalue = p_intf->p_sys->p_adj->value;

                    /* If the user hasn't touched the slider since the last time,
                     * then the input can safely change it */
                    if( newvalue == p_intf->p_sys->i_adj_oldvalue )
                    {
                        /* Update the value */
                        p_intf->p_sys->p_adj->value =
                        p_intf->p_sys->i_adj_oldvalue =
                            ( 100 * i_time ) / i_length;
                        g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
                                                 "value_changed" );
                    }
                    /* Otherwise, send message to the input if the user has
                     * finished dragging the slider */
                    else if( p_intf->p_sys->b_slider_free )
                    {
                        double f_pos = (double)newvalue / 100.0;

                        /* release the lock to be able to seek */
                        vlc_object_unlock( p_input );
                        var_SetFloat( p_input, "position", f_pos );
                        vlc_object_lock( p_input );

                        /* Update the old value */
                        p_intf->p_sys->i_adj_oldvalue = newvalue;
                    }
                }
            }
        }
        vlc_object_unlock( p_input );
    }
    else if( p_intf->p_sys->b_playing && !intf_ShouldDie( p_intf ) )
    {
        GtkModeManage( p_intf );
        p_intf->p_sys->b_playing = 0;
    }

#ifndef NEED_GTK2_MAIN
    if( intf_ShouldDie( p_intf ) )
    {
        vlc_mutex_unlock( &p_intf->change_lock );

        /* Prepare to die, young Skywalker */
        gtk_main_quit();

        return FALSE;
    }
#endif

    vlc_mutex_unlock( &p_intf->change_lock );

    return TRUE;
}

/*****************************************************************************
 * GtkDisplayDate: display stream date
 *****************************************************************************
 * This function displays the current date related to the position in
 * the stream. It is called whenever the slider changes its value.
 * The lock has to be taken before you call the function.
 *****************************************************************************/
void GtkDisplayDate( GtkAdjustment *p_adj, gpointer userdata )
{
    (void)p_adj;

    intf_thread_t *p_intf;

    p_intf = (intf_thread_t*) userdata;
    if (p_intf == NULL)
        return;

    if( p_intf->p_sys->p_input )
    {
        char psz_time[ MSTRTIME_MAX_SIZE ];
        int64_t i_seconds;

        i_seconds = var_GetTime( p_intf->p_sys->p_input, "time" ) / INT64_C(1000000 );
        secstotimestr( psz_time, i_seconds );

        gtk_label_set_text( GTK_LABEL( p_intf->p_sys->p_slider_label ),
                            psz_time );
     }
}

/*****************************************************************************
 * GtkModeManage: actualize the aspect of the interface whenever the input
 *                changes.
 *****************************************************************************
 * The lock has to be taken before you call the function.
 *****************************************************************************/
gint GtkModeManage( intf_thread_t * p_intf )
{
    GtkWidget *     p_slider = NULL;
    bool      b_control;

    if ( p_intf->p_sys->p_window == NULL )
        msg_Err( p_intf, "Main widget not found" );

    p_slider = lookup_widget( p_intf->p_sys->p_window, "timeSlider");
    if (p_slider == NULL)
        msg_Err( p_intf, "Slider widget not found" );

    /* controls unavailable */
    b_control = 0;

    /* show the box related to current input mode */
    if( p_intf->p_sys->p_input )
    {
        /* initialize and show slider for seekable streams */
        {
            gtk_widget_show( GTK_WIDGET( p_slider ) );
        }

        /* control buttons for free pace streams */
        b_control = p_intf->p_sys->p_input->b_can_pace_control;

        msg_Dbg( p_intf, "stream has changed, refreshing interface" );
    }

    /* set control items */
    gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbRewind"), b_control );
    gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbPause"), b_control );
    gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbForward"), b_control );
    return TRUE;
}