gtk_callbacks.c

来自「VLC媒体播放程序」· C语言 代码 · 共 654 行 · 第 1/2 页

        p_intf->p_sys->b_chapter_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
    }

    vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );
}

/****************************************************************************
 * About box
 ****************************************************************************/

gboolean GtkAboutShow( GtkWidget       *widget,
                       gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    if( !GTK_IS_WIDGET( p_intf->p_sys->p_about ) )
    {
        p_intf->p_sys->p_about = create_intf_about();
        gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_about ),
                             "p_intf", p_intf );
    }
    gtk_widget_show( p_intf->p_sys->p_about );
    gdk_window_raise( p_intf->p_sys->p_about->window );

    return TRUE;
}

void GtkAboutOk( GtkButton * button, gpointer user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( button );

    gtk_widget_hide( p_intf->p_sys->p_about );
}


/****************************************************************************
 * Jump box
 ****************************************************************************/

gboolean GtkJumpShow( GtkWidget       *widget,
                      gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( widget );

    if( !GTK_IS_WIDGET( p_intf->p_sys->p_jump ) )
    {
        p_intf->p_sys->p_jump = create_intf_jump();
        gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_jump ),
                             "p_intf", p_intf );
    }

    gtk_widget_show( p_intf->p_sys->p_jump );
    gdk_window_raise( p_intf->p_sys->p_jump->window );

    return FALSE;
}


void GtkJumpOk( GtkButton       *button,
                gpointer         user_data)
{
    intf_thread_t * p_intf = GtkGetIntf( button );
    int i_hours, i_minutes, i_seconds;

    if( p_intf->p_sys->p_input == NULL )
    {
        return;
    }

#define GET_VALUE( name )                                                   \
    gtk_spin_button_get_value_as_int( GTK_SPIN_BUTTON( gtk_object_get_data( \
        GTK_OBJECT( p_intf->p_sys->p_jump ), name ) ) )
    i_hours   = GET_VALUE( "jump_hour_spinbutton" );
    i_minutes = GET_VALUE( "jump_minute_spinbutton" );
    i_seconds = GET_VALUE( "jump_second_spinbutton" );
#undef GET_VALUE

    input_Seek( p_intf->p_sys->p_input,
                i_seconds + 60 * i_minutes + 3600 * i_hours,
                INPUT_SEEK_SECONDS | INPUT_SEEK_SET );

    gtk_widget_hide( gtk_widget_get_toplevel( GTK_WIDGET (button) ) );
}


void GtkJumpCancel( GtkButton       *button,
                    gpointer         user_data)
{
    gtk_widget_hide( gtk_widget_get_toplevel( GTK_WIDGET (button) ) );
}

/****************************************************************************
 * Callbacks for disc ejection
 ****************************************************************************/
gboolean GtkDiscEject ( GtkWidget *widget, gpointer user_data )
{
    char *psz_device = NULL;
    char *psz_parser;
    char *psz_current;

    intf_thread_t *p_intf = GtkGetIntf( widget );
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                                       FIND_ANYWHERE );
    if( p_playlist == NULL )
    {
        return FALSE;
    }

    vlc_mutex_lock( &p_playlist->object_lock );

    if( p_playlist->i_index < 0 )
    {
        vlc_mutex_unlock( &p_playlist->object_lock );
        vlc_object_release( p_playlist );
        return FALSE;
    }

    psz_current = p_playlist->pp_items[ p_playlist->i_index ]->psz_name;

    /*
     * Get the active input
     * Determine whether we can eject a media, ie it's a VCD or DVD
     * If it's neither a VCD nor a DVD, then return
     */

    /*
     * Don't really know if I must lock the stuff here, we're using it read-only
     */

    if( psz_current != NULL )
    {
        if( !strncmp(psz_current, "dvd://", 4) )
        {
            switch( psz_current[strlen("dvd://")] )
            {
            case '\0':
            case '@':
                psz_device = config_GetPsz( p_intf, "dvd" );
                break;
            default:
                /* Omit the first MRL-selector characters */
                psz_device = strdup( psz_current + strlen("dvd://" ) );
                break;
            }
        }
        else if( !strncmp(psz_current, "vcd:", strlen("vcd:")) )
        {
            switch( psz_current[strlen("vcd:")] )
            {
            case '\0':
            case '@':
                psz_device = config_GetPsz( p_intf, VCD_MRL );
                break;
            default:
                /* Omit the beginning MRL-selector characters */
                psz_device = strdup( psz_current + strlen(VCD_MRL) );
                break;
            }
        }
        else if( !strncmp(psz_current, CDDA_MRL, strlen(CDDA_MRL) ) )
        {
            switch( psz_current[strlen(CDDA_MRL)] )
            {
            case '\0':
            case '@':
                psz_device = config_GetPsz( p_intf, "cd-audio" );
                break;
            default:
                /* Omit the beginning MRL-selector characters */
                psz_device = strdup( psz_current + strlen(CDDA_MRL) );
                break;
            }
        }
        else
        {
            psz_device = strdup( psz_current );
        }
    }

    vlc_mutex_unlock( &p_playlist->object_lock );
    vlc_object_release( p_playlist );

    if( psz_device == NULL )
    {
        return TRUE;
    }

    /* Remove what we have after @ */
    psz_parser = psz_device;
    for( psz_parser = psz_device ; *psz_parser ; psz_parser++ )
    {
        if( *psz_parser == '@' )
        {
            *psz_parser = '\0';
            break;
        }
    }

    /* If there's a stream playing, we aren't allowed to eject ! */
    if( p_intf->p_sys->p_input == NULL )
    {
        msg_Dbg( p_intf, "ejecting %s", psz_device );

        intf_Eject( p_intf, psz_device );
    }

    free(psz_device);

    return TRUE;
}

/****************************************************************************
 * Messages window
 ****************************************************************************/

gboolean GtkMessagesShow( GtkWidget       *widget,
                          gpointer         user_data)
{
    static GdkColor black = { 0, 0x0000, 0x0000, 0x0000 };
    static GdkColormap *colormap;
    intf_thread_t *p_intf = GtkGetIntf( widget );

    gtk_widget_show( p_intf->p_sys->p_messages );
    colormap = gdk_colormap_get_system ();
    gdk_color_alloc( colormap, &black );
    gdk_window_set_background( p_intf->p_sys->p_messages_text->text_area,
                               &black );

    gdk_window_raise( p_intf->p_sys->p_messages->window );

    gtk_text_set_point( p_intf->p_sys->p_messages_text,
                    gtk_text_get_length( p_intf->p_sys->p_messages_text ) );

    return TRUE;
}

void
GtkMessagesOk                          (GtkButton       *button,
                                        gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( button );
    gtk_widget_hide( p_intf->p_sys->p_messages );
}


gboolean
GtkMessagesDelete                      (GtkWidget       *widget,
                                        GdkEvent        *event,
                                        gpointer         user_data)
{
    intf_thread_t *p_intf = GtkGetIntf( widget );
    gtk_widget_hide( p_intf->p_sys->p_messages );
    return TRUE;
}


void
GtkOpenNotebookChanged                 (GtkNotebook     *notebook,
                                        GtkNotebookPage *page,
                                        gint             page_num,
                                        gpointer         user_data)
{
    GtkOpenChanged( GTK_WIDGET( notebook ), user_data );
}

/****************************************************************************
 * Audio management
 ****************************************************************************/
void GtkVolumeUp                      ( GtkMenuItem     *menuitem,
                                        gpointer         user_data )
{
    intf_thread_t   *p_intf = GtkGetIntf( menuitem );
    audio_volume_t  i_volume;

    aout_VolumeUp( p_intf, 1, &i_volume );
    p_intf->p_sys->b_mute = ( i_volume == 0 ) ? 1 : 0;
}


void GtkVolumeDown                    ( GtkMenuItem     *menuitem,
                                        gpointer         user_data )
{
    intf_thread_t   *p_intf = GtkGetIntf( menuitem );
    audio_volume_t  i_volume;

    aout_VolumeDown( p_intf, 1, &i_volume );
    p_intf->p_sys->b_mute = ( i_volume == 0 ) ? 1 : 0;
}


void GtkVolumeMute                    ( GtkMenuItem     *menuitem,
                                        gpointer         user_data )
{
    intf_thread_t   *p_intf = GtkGetIntf( menuitem );
    audio_volume_t i_volume;

    aout_VolumeMute( p_intf, &i_volume );
    p_intf->p_sys->b_mute = ( i_volume == 0 ) ? 1 : 0;
}

void
GtkMenubarDeinterlace                  ( GtkMenuItem     *menuitem,
                                        gpointer         user_data)
{
    intf_thread_t   *p_intf = GtkGetIntf( menuitem );

    if( p_intf )
        msg_Dbg( p_intf, "GtkMenubarDeinterlace" );
}


void
GtkPopupDeinterlace                    (GtkRadioMenuItem *radiomenuitem,
                                        gpointer         user_data)
{
    intf_thread_t   *p_intf = GtkGetIntf( radiomenuitem );

    if( p_intf )
        msg_Dbg( p_intf, "GtkPopupDeinterlace" );
}