git.sesse.net Git - vlc/blob - plugins/gtk/intf_gtk.c

   1 /*****************************************************************************
   2  * intf_gtk.c: Gtk+ interface
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000 VideoLAN
   5  * $Id: intf_gtk.c,v 1.10 2001/03/15 01:42:20 sam Exp $
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Stéphane Borel <stef@via.ecp.fr>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  23  *****************************************************************************/
  24
  25 #define MODULE_NAME gtk
  26 #include "modules_inner.h"
  27
  28 /*****************************************************************************
  29  * Preamble
  30  *****************************************************************************/
  31 #include "defs.h"
  32
  33 #include <errno.h>                                                 /* ENOMEM */
  34 #include <stdlib.h>                                                /* free() */
  35 #include <string.h>                                            /* strerror() */
  36 #include <stdio.h>
  37
  38 #include <gtk/gtk.h>
  39
  40 #include "config.h"
  41 #include "common.h"
  42 #include "threads.h"
  43 #include "mtime.h"
  44 #include "tests.h"
  45 #include "modules.h"
  46
  47 #include "stream_control.h"
  48 #include "input_ext-intf.h"
  49
  50 #include "intf_msg.h"
  51 #include "interface.h"
  52
  53 #include "gtk_callbacks.h"
  54 #include "gtk_interface.h"
  55 #include "gtk_support.h"
  56 #include "intf_gtk.h"
  57
  58 #include "main.h"
  59
  60 /*****************************************************************************
  61  * Local prototypes.
  62  *****************************************************************************/
  63 static int  intf_Probe      ( probedata_t *p_data );
  64 static int  intf_Open       ( intf_thread_t *p_intf );
  65 static void intf_Close      ( intf_thread_t *p_intf );
  66 static void intf_Run        ( intf_thread_t *p_intf );
  67
  68 static gint GtkManage       ( gpointer p_data );
  69 static gint GtkLanguageMenus( gpointer, GtkWidget *, es_descriptor_t *, gint,
  70                               void (*pf_activate)(GtkMenuItem *, gpointer) );
  71 static gint GtkChapterMenu  ( gpointer, GtkWidget *,
  72                               void (*pf_activate)(GtkMenuItem *, gpointer) );
  73 static gint GtkTitleMenu    ( gpointer, GtkWidget *,
  74                               void (*pf_activate)(GtkMenuItem *, gpointer) );
  75 static void GtkDisplayDate  ( GtkAdjustment *p_adj );
  76
  77 void GtkPlayListManage( gpointer p_data );
  78
  79 /*****************************************************************************
  80  * g_atexit: kludge to avoid the Gtk+ thread to segfault at exit
  81  *****************************************************************************
  82  * gtk_init() makes several calls to g_atexit() which calls atexit() to
  83  * register tidying callbacks to be called at program exit. Since the Gtk+
  84  * plugin is likely to be unloaded at program exit, we have to export this
  85  * symbol to intercept the g_atexit() calls. Talk about crude hack.
  86  *****************************************************************************/
  87 void g_atexit( GVoidFunc func )
  88 {
  89     intf_thread_t *p_intf = p_main->p_intf;
  90
  91     if( p_intf->p_sys->pf_gdk_callback == NULL )
  92     {
  93         p_intf->p_sys->pf_gdk_callback = func;
  94     }
  95     else if( p_intf->p_sys->pf_gtk_callback == NULL )
  96     {
  97         p_intf->p_sys->pf_gtk_callback = func;
  98     }
  99     /* else nothing, but we could do something here */
 100     return;
 101 }
 102
 103 /*****************************************************************************
 104  * Functions exported as capabilities. They are declared as static so that
 105  * we don't pollute the namespace too much.
 106  *****************************************************************************/
 107 void _M( intf_getfunctions )( function_list_t * p_function_list )
 108 {
 109     p_function_list->pf_probe = intf_Probe;
 110     p_function_list->functions.intf.pf_open  = intf_Open;
 111     p_function_list->functions.intf.pf_close = intf_Close;
 112     p_function_list->functions.intf.pf_run   = intf_Run;
 113 }
 114
 115 /*****************************************************************************
 116  * intf_Probe: probe the interface and return a score
 117  *****************************************************************************
 118  * This function tries to initialize Gtk+ and returns a score to the
 119  * plugin manager so that it can select the best plugin.
 120  *****************************************************************************/
 121 static int intf_Probe( probedata_t *p_data )
 122 {
 123     if( TestMethod( INTF_METHOD_VAR, "gtk" ) )
 124     {
 125         return( 999 );
 126     }
 127
 128     return( 90 );
 129 }
 130
 131 /*****************************************************************************
 132  * intf_Open: initialize and create window
 133  *****************************************************************************/
 134 static int intf_Open( intf_thread_t *p_intf )
 135 {
 136     /* Allocate instance and initialize some members */
 137     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
 138     if( p_intf->p_sys == NULL )
 139     {
 140         intf_ErrMsg("error: %s", strerror(ENOMEM));
 141         return( 1 );
 142     }
 143
 144     /* Initialize Gtk+ thread */
 145     p_intf->p_sys->b_popup_changed = 0;
 146     p_intf->p_sys->b_window_changed = 0;
 147     p_intf->p_sys->b_playlist_changed = 0;
 148
 149     p_intf->p_sys->b_menus_update = 1;
 150     p_intf->p_sys->b_slider_free = 1;
 151
 152
 153     p_intf->p_sys->i_playing = -1;
 154
 155     p_intf->p_sys->pf_gtk_callback = NULL;
 156     p_intf->p_sys->pf_gdk_callback = NULL;
 157
 158     return( 0 );
 159 }
 160
 161 /*****************************************************************************
 162  * intf_Close: destroy interface window
 163  *****************************************************************************/
 164 static void intf_Close( intf_thread_t *p_intf )
 165 {
 166     /* Destroy structure */
 167     free( p_intf->p_sys );
 168 }
 169
 170 /*****************************************************************************
 171  * intf_Run: Gtk+ thread
 172  *****************************************************************************
 173  * this part of the interface is in a separate thread so that we can call
 174  * gtk_main() from within it without annoying the rest of the program.
 175  * XXX: the approach may look kludgy, and probably is, but I could not find
 176  * a better way to dynamically load a Gtk+ interface at runtime.
 177  *****************************************************************************/
 178 static void intf_Run( intf_thread_t *p_intf )
 179 {
 180     /* gtk_init needs to know the command line. We don't care, so we
 181      * give it an empty one */
 182     char  *p_args[] = { "" };
 183     char **pp_args  = p_args;
 184     int    i_args   = 1;
 185
 186     /* The data types we are allowed to receive */
 187     static GtkTargetEntry target_table[] =
 188     {
 189         { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
 190         { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
 191     };
 192
 193     /* intf_Manage callback timeout */
 194     int i_timeout;
 195
 196     /* Initialize Gtk+ */
 197     gtk_init( &i_args, &pp_args );
 198
 199     /* Create some useful widgets that will certainly be used */
 200     p_intf->p_sys->p_window = create_intf_window( );
 201     p_intf->p_sys->p_popup = create_intf_popup( );
 202     p_intf->p_sys->p_disc = create_intf_disc( );
 203     p_intf->p_sys->p_network = create_intf_network( );
 204     p_intf->p_sys->p_playlist = create_intf_playlist( );
 205
 206
 207     /* Set the title of the main window */
 208     gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
 209                           VOUT_TITLE " (Gtk+ interface)");
 210
 211     /* Accept file drops on the main window */
 212     gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
 213                        GTK_DEST_DEFAULT_ALL, target_table,
 214                        1, GDK_ACTION_COPY );
 215
 216     /* Accept file drops on the playlist window */
 217     gtk_drag_dest_set( GTK_WIDGET( lookup_widget( p_intf->p_sys->p_playlist,
 218                                                   "playlist_clist") ),
 219                        GTK_DEST_DEFAULT_ALL, target_table,
 220                        1, GDK_ACTION_COPY );
 221
 222     /* Get the interface labels */
 223     #define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
 224                          GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
 225     p_intf->p_sys->p_label_date = P_LABEL( "label_date" );
 226     p_intf->p_sys->p_label_status = P_LABEL( "label_status" );
 227     #undef P_LABEL
 228
 229     /* Connect the date display to the slider */
 230     #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
 231                          GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
 232     p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
 233
 234     gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 235                          GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
 236     p_intf->p_sys->f_adj_oldvalue = 0;
 237     #undef P_SLIDER
 238
 239     /* We don't create these ones yet because we perhaps won't need them */
 240     p_intf->p_sys->p_about = NULL;
 241     p_intf->p_sys->p_modules = NULL;
 242     p_intf->p_sys->p_fileopen = NULL;
 243
 244     /* Store p_intf to keep an eye on it */
 245     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 246                          "p_intf", p_intf );
 247
 248     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
 249                          "p_intf", p_intf );
 250
 251     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_playlist),
 252                          "p_intf", p_intf );
 253
 254     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_disc),
 255                          "p_intf", p_intf );
 256
 257     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_network),
 258                          "p_intf", p_intf );
 259
 260     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
 261                          "p_intf", p_intf );
 262
 263     /* Show the control window */
 264     gtk_widget_show( p_intf->p_sys->p_window );
 265
 266     /* Sleep to avoid using all CPU - since some interfaces needs to access
 267      * keyboard events, a 100ms delay is a good compromise */
 268     i_timeout = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GtkManage, p_intf );
 269
 270     /* Enter Gtk mode */
 271     gtk_main();
 272
 273     /* Remove the timeout */
 274     gtk_timeout_remove( i_timeout );
 275
 276     /* Launch stored callbacks */
 277     if( p_intf->p_sys->pf_gtk_callback != NULL )
 278     {
 279         p_intf->p_sys->pf_gtk_callback();
 280
 281         if( p_intf->p_sys->pf_gdk_callback != NULL )
 282         {
 283             p_intf->p_sys->pf_gdk_callback();
 284         }
 285     }
 286 }
 287
 288 /* following functions are local */
 289
 290 /*****************************************************************************
 291  * GtkManage: manage main thread messages
 292  *****************************************************************************
 293  * In this function, called approx. 10 times a second, we check what the
 294  * main program wanted to tell us.
 295  *****************************************************************************/
 296
 297 static gint GtkManage( gpointer p_data )
 298 {
 299 #define p_intf ((intf_thread_t *)p_data)
 300
 301     GtkPlayListManage( p_data );
 302
 303     vlc_mutex_lock( &p_intf->change_lock );
 304
 305     /* If the "display popup" flag has changed */
 306     if( p_intf->b_menu_change )
 307     {
 308         if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
 309         {
 310             p_intf->p_sys->p_popup = create_intf_popup();
 311             gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
 312                                  "p_popup", p_intf );
 313         }
 314         gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
 315                         NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
 316         p_intf->b_menu_change = 0;
 317     }
 318
 319     /* Update language/chapter menus after user request */
 320     if( p_intf->p_input != NULL && p_intf->p_sys->p_window != NULL &&
 321         p_intf->p_sys->b_menus_update )
 322     {
 323         es_descriptor_t *   p_audio_es;
 324         es_descriptor_t *   p_spu_es;
 325         GtkWidget *         p_menubar_menu;
 326         GtkWidget *         p_popup_menu;
 327         gint                i;
 328
 329         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 330                      p_intf->p_sys->p_window ), "menubar_title" ) );
 331
 332         GtkTitleMenu( p_intf, p_menubar_menu, on_menubar_title_activate );
 333
 334         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 335                      p_intf->p_sys->p_window ), "menubar_chapter" ) );
 336
 337         GtkChapterMenu( p_intf, p_menubar_menu, on_menubar_chapter_activate );
 338
 339         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 340                      p_intf->p_sys->p_popup ), "popup_navigation" ) );
 341
 342         GtkTitleMenu( p_intf, p_popup_menu, on_popup_navigation_activate );
 343
 344         /* look for selected ES */
 345         p_audio_es = NULL;
 346         p_spu_es = NULL;
 347
 348         for( i = 0 ; i < p_intf->p_input->stream.i_selected_es_number ; i++ )
 349         {
 350             if( p_intf->p_input->stream.pp_es[i]->b_audio )
 351             {
 352                 p_audio_es = p_intf->p_input->stream.pp_es[i];
 353             }
 354
 355             if( p_intf->p_input->stream.pp_es[i]->b_spu )
 356             {
 357                 p_spu_es = p_intf->p_input->stream.pp_es[i];
 358             }
 359         }
 360
 361         /* audio menus */
 362
 363         /* find audio root menu */
 364         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 365                              p_intf->p_sys->p_window ), "menubar_audio" ) );
 366
 367         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 368                      p_intf->p_sys->p_popup ), "popup_audio" ) );
 369
 370         GtkLanguageMenus( p_intf, p_menubar_menu, p_audio_es, 1,
 371                           on_menubar_audio_activate );
 372         GtkLanguageMenus( p_intf, p_popup_menu, p_audio_es, 1,
 373                           on_popup_audio_activate );
 374
 375         /* sub picture menus */
 376
 377         /* find spu root menu */
 378         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 379                           p_intf->p_sys->p_window ), "menubar_subpictures" ) );
 380
 381         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 382                      p_intf->p_sys->p_popup ), "popup_subpictures" ) );
 383
 384         GtkLanguageMenus( p_intf, p_menubar_menu, p_spu_es, 2,
 385                           on_menubar_subpictures_activate  );
 386         GtkLanguageMenus( p_intf, p_popup_menu, p_spu_es, 2,
 387                           on_popup_subpictures_activate );
 388
 389         /* everything is ready */
 390         p_intf->p_sys->b_menus_update = 0;
 391     }
 392
 393     /* Manage the slider */
 394     if( p_intf->p_input != NULL )
 395     {
 396         float newvalue = p_intf->p_sys->p_adj->value;
 397
 398 #define p_area p_intf->p_input->stream.p_selected_area
 399         /* If the user hasn't touched the slider since the last time,
 400          * then the input can safely change it */
 401         if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 402         {
 403             /* Update the value */
 404             p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue =
 405                 ( 100. * p_area->i_tell ) / p_area->i_size;
 406
 407             gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 408                                      "value_changed" );
 409         }
 410         /* Otherwise, send message to the input if the user has
 411          * finished dragging the slider */
 412         else if( p_intf->p_sys->b_slider_free )
 413         {
 414             off_t i_seek = ( newvalue * p_area->i_size ) / 100;
 415
 416             input_Seek( p_intf->p_input, i_seek );
 417
 418             /* Update the old value */
 419             p_intf->p_sys->f_adj_oldvalue = newvalue;
 420         }
 421 #undef p_area
 422     }
 423
 424     /* Manage core vlc functions through the callback */
 425     p_intf->pf_manage( p_intf );
 426
 427     if( p_intf->b_die )
 428     {
 429         vlc_mutex_unlock( &p_intf->change_lock );
 430
 431         /* Prepare to die, young Skywalker */
 432         gtk_main_quit();
 433
 434         /* Just in case */
 435         return( FALSE );
 436     }
 437
 438     vlc_mutex_unlock( &p_intf->change_lock );
 439
 440     return( TRUE );
 441
 442 #undef p_intf
 443 }
 444
 445 /*****************************************************************************
 446  * GtkMenuRadioItem: give a menu item adapted to language/title selection,
 447  * ie the menu item is a radio button.
 448  *****************************************************************************/
 449 static GtkWidget * GtkMenuRadioItem( GtkWidget * p_menu,
 450                                      GSList **   p_button_group,
 451                                      gint        b_active,
 452                                      char *      psz_name )
 453 {
 454     GtkWidget *     p_item;
 455
 456 #if 0
 457     GtkWidget *     p_button;
 458
 459     /* create button */
 460     p_button =
 461         gtk_radio_button_new_with_label( *p_button_group, psz_name );
 462
 463     /* add button to group */
 464     *p_button_group =
 465         gtk_radio_button_group( GTK_RADIO_BUTTON( p_button ) );
 466
 467     /* prepare button for display */
 468     gtk_widget_show( p_button );
 469
 470     /* create menu item to store button */
 471     p_item = gtk_menu_item_new();
 472
 473     /* put button inside item */
 474     gtk_container_add( GTK_CONTAINER( p_item ), p_button );
 475
 476     /* add item to menu */
 477     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 478
 479           gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 480                GTK_SIGNAL_FUNC( on_audio_toggle ),
 481                NULL );
 482
 483
 484     /* prepare item for display */
 485     gtk_widget_show( p_item );
 486
 487     /* is it the selected item ? */
 488     if( b_active )
 489     {
 490         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( p_button ), TRUE );
 491     }
 492 #else
 493     p_item = gtk_menu_item_new_with_label( psz_name );
 494     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 495     gtk_widget_show( p_item );
 496 #endif
 497
 498     return p_item;
 499 }
 500
 501 /*****************************************************************************
 502  * GtkLanguageMenus: update interactive menus of the interface
 503  *****************************************************************************
 504  * Sets up menus with information from input:
 505  *  -languages
 506  *  -sub-pictures
 507  * Warning: since this function is designed to be called by management
 508  * function, the interface lock has to be taken
 509  *****************************************************************************/
 510 static gint GtkLanguageMenus( gpointer          p_data,
 511                               GtkWidget *       p_root,
 512                               es_descriptor_t * p_es,
 513                               gint              i_type,
 514                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 515 {
 516     intf_thread_t *     p_intf;
 517     GtkWidget *         p_menu;
 518     GtkWidget *         p_separator;
 519     GtkWidget *         p_item;
 520     GSList *            p_button_group;
 521     char *              psz_name;
 522     gint                b_active;
 523     gint                b_audio;
 524     gint                b_spu;
 525     gint                i;
 526
 527
 528
 529     /* cast */
 530     p_intf = (intf_thread_t *)p_data;
 531
 532     vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 533
 534     b_audio = ( i_type == 1 );
 535     p_button_group = NULL;
 536
 537     /* menu container for audio */
 538     p_menu = gtk_menu_new();
 539
 540     /* create a set of language buttons and append them to the container */
 541     b_active = ( p_es == NULL ) ? 1 : 0;
 542     psz_name = "Off";
 543
 544     p_item = GtkMenuRadioItem( p_menu, &p_button_group, b_active, psz_name );
 545
 546     /* setup signal hanling */
 547     gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 548             GTK_SIGNAL_FUNC ( pf_activate ), NULL );
 549
 550     p_separator = gtk_menu_item_new();
 551     gtk_widget_show( p_separator );
 552     gtk_menu_append( GTK_MENU( p_menu ), p_separator );
 553     gtk_widget_set_sensitive( p_separator, FALSE );
 554
 555     for( i = 0 ; i < p_intf->p_input->stream.i_es_number ; i++ )
 556     {
 557
 558         b_audio = ( i_type == 1 ) && p_intf->p_input->stream.pp_es[i]->b_audio;
 559         b_spu   = ( i_type == 2 ) && p_intf->p_input->stream.pp_es[i]->b_spu;
 560
 561         if( b_audio || b_spu )
 562         {
 563             b_active = ( p_es == p_intf->p_input->stream.pp_es[i] ) ? 1 : 0;
 564             psz_name = p_intf->p_input->stream.pp_es[i]->psz_desc;
 565
 566             p_item = GtkMenuRadioItem( p_menu, &p_button_group,
 567                                        b_active, psz_name );
 568
 569             /* setup signal hanling */
 570             gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 571                GTK_SIGNAL_FUNC( pf_activate ),
 572                  (gpointer)( p_intf->p_input->stream.pp_es[i] ) );
 573
 574         }
 575     }
 576
 577     /* link the new menu to the menubar item */
 578     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_root ), p_menu );
 579
 580     /* be sure that menu is sensitive */
 581     gtk_widget_set_sensitive( p_root, TRUE );
 582
 583     vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 584
 585     return TRUE;
 586 }
 587
 588 /*****************************************************************************
 589  * GtkChapterMenu: generate chapter menu for current title
 590  *****************************************************************************/
 591 static gint GtkChapterMenu( gpointer p_data, GtkWidget * p_chapter,
 592                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 593 {
 594     intf_thread_t *     p_intf;
 595     char                psz_name[10];
 596     GtkWidget *         p_chapter_menu;
 597     GtkWidget *         p_item;
 598     GSList *            p_chapter_button_group;
 599     gint                i_title;
 600     gint                i_chapter;
 601     gint                b_active;
 602
 603     /* cast */
 604     p_intf = (intf_thread_t*)p_data;
 605
 606     i_title = p_intf->p_input->stream.p_selected_area->i_id;
 607     p_chapter_menu = gtk_menu_new();
 608
 609     for( i_chapter = 0;
 610          i_chapter < p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 611          i_chapter++ )
 612     {
 613         b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 614                      == i_chapter + 1 ) ? 1 : 0;
 615
 616         sprintf( psz_name, "Chapter %d", i_chapter + 1 );
 617
 618         p_item = GtkMenuRadioItem( p_chapter_menu, &p_chapter_button_group,
 619                                    b_active, psz_name );
 620         /* setup signal hanling */
 621         gtk_signal_connect( GTK_OBJECT( p_item ),
 622                         "activate",
 623                         GTK_SIGNAL_FUNC( pf_activate ),
 624                         (gpointer)(i_chapter + 1) );
 625     }
 626
 627     /* link the new menu to the title menu item */
 628     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_chapter ),
 629                                p_chapter_menu );
 630
 631     /* be sure that chapter menu is sensitive */
 632     gtk_widget_set_sensitive( p_chapter, TRUE );
 633
 634     return TRUE;
 635 }
 636
 637 /*****************************************************************************
 638  * GtkTitleMenu: sets menus for titles and chapters selection
 639  *****************************************************************************
 640  * Generates two type of menus:
 641  *  -simple list of titles
 642  *  -cascaded lists of chapters for each title
 643  *****************************************************************************/
 644 static gint GtkTitleMenu( gpointer       p_data,
 645                           GtkWidget *    p_navigation,
 646                           void(*pf_activate )( GtkMenuItem *, gpointer ) )
 647 {
 648     intf_thread_t *     p_intf;
 649     char                psz_name[10];
 650     GtkWidget *         p_title_menu;
 651     GtkWidget *         p_title_item;
 652     GtkWidget *         p_chapter_menu;
 653     GtkWidget *         p_item;
 654     GSList *            p_title_button_group;
 655     GSList *            p_chapter_button_group;
 656     gint                i_title;
 657     gint                i_chapter;
 658     gint                b_active;
 659
 660     /* cast */
 661     p_intf = (intf_thread_t*)p_data;
 662
 663     p_title_menu = gtk_menu_new();
 664     p_title_button_group = NULL;
 665     p_chapter_button_group = NULL;
 666
 667     /* loop on titles */
 668     for( i_title = 1 ;
 669          i_title < p_intf->p_input->stream.i_area_nb ;
 670          i_title++ )
 671     {
 672         b_active = ( p_intf->p_input->stream.pp_areas[i_title] ==
 673                      p_intf->p_input->stream.p_selected_area ) ? 1 : 0;
 674         sprintf( psz_name, "Title %d", i_title );
 675
 676         p_title_item = GtkMenuRadioItem( p_title_menu, &p_title_button_group,
 677                                          b_active, psz_name );
 678
 679         if( pf_activate == on_menubar_title_activate )
 680         {
 681             /* setup signal hanling */
 682             gtk_signal_connect( GTK_OBJECT( p_title_item ),
 683                      "activate",
 684                      GTK_SIGNAL_FUNC( pf_activate ),
 685                      (gpointer)(p_intf->p_input->stream.pp_areas[i_title]) );
 686         }
 687         else
 688         {
 689             p_chapter_menu = gtk_menu_new();
 690
 691             for( i_chapter = 0;
 692                  i_chapter <
 693                         p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 694                  i_chapter++ )
 695             {
 696                 b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 697                              == i_chapter + 1 ) ? 1 : 0;
 698
 699                 sprintf( psz_name, "Chapter %d", i_chapter + 1 );
 700
 701                 p_item = GtkMenuRadioItem( p_chapter_menu,
 702                                            &p_chapter_button_group,
 703                                            b_active, psz_name );
 704
 705                 /* setup signal hanling */
 706                 gtk_signal_connect( GTK_OBJECT( p_item ),
 707                            "activate",
 708                            GTK_SIGNAL_FUNC( pf_activate ),
 709                            (gpointer)( ( i_title * 100 ) + ( i_chapter + 1) ) );
 710         }
 711
 712         /* link the new menu to the title menu item */
 713         gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_title_item ),
 714                                    p_chapter_menu );
 715         }
 716
 717         /* be sure that chapter menu is sensitive */
 718         gtk_widget_set_sensitive( p_title_menu, TRUE );
 719
 720     }
 721
 722     /* link the new menu to the menubar audio item */
 723     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_navigation ), p_title_menu );
 724
 725     /* be sure that audio menu is sensitive */
 726     gtk_widget_set_sensitive( p_navigation, TRUE );
 727
 728
 729     return TRUE;
 730 }
 731
 732 void GtkDisplayDate( GtkAdjustment *p_adj )
 733 {
 734     intf_thread_t *p_intf;
 735
 736     p_intf = gtk_object_get_data( GTK_OBJECT( p_adj ), "p_intf" );
 737
 738     if( p_intf->p_input != NULL )
 739     {
 740 #define p_area p_intf->p_input->stream.p_selected_area
 741         char psz_time[ OFFSETTOTIME_MAX_SIZE ];
 742
 743         vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 744
 745         gtk_label_set_text( p_intf->p_sys->p_label_date,
 746                             input_OffsetToTime( p_intf->p_input, psz_time,
 747                                    ( p_area->i_size * p_adj->value ) / 100 ) );
 748
 749         vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 750 #undef p_area
 751      }
 752 }
 753
 754