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 1.17 2001/05/07 03:14:09 stef 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     if( TestProgram( "gvlc" ) )
 129     {
 130         return( 190 );
 131     }
 132
 133     return( 90 );
 134 }
 135
 136 /*****************************************************************************
 137  * intf_Open: initialize and create window
 138  *****************************************************************************/
 139 static int intf_Open( intf_thread_t *p_intf )
 140 {
 141     /* Allocate instance and initialize some members */
 142     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
 143     if( p_intf->p_sys == NULL )
 144     {
 145         intf_ErrMsg("error: %s", strerror(ENOMEM));
 146         return( 1 );
 147     }
 148
 149     /* Initialize Gtk+ thread */
 150     p_intf->p_sys->b_popup_changed = 0;
 151     p_intf->p_sys->b_window_changed = 0;
 152     p_intf->p_sys->b_playlist_changed = 0;
 153
 154     p_intf->p_sys->b_menus_update = 1;
 155     p_intf->p_sys->b_slider_free = 1;
 156
 157
 158     p_intf->p_sys->i_playing = -1;
 159
 160     p_intf->p_sys->pf_gtk_callback = NULL;
 161     p_intf->p_sys->pf_gdk_callback = NULL;
 162
 163     return( 0 );
 164 }
 165
 166 /*****************************************************************************
 167  * intf_Close: destroy interface window
 168  *****************************************************************************/
 169 static void intf_Close( intf_thread_t *p_intf )
 170 {
 171     /* Destroy structure */
 172     free( p_intf->p_sys );
 173 }
 174
 175 /*****************************************************************************
 176  * intf_Run: Gtk+ thread
 177  *****************************************************************************
 178  * this part of the interface is in a separate thread so that we can call
 179  * gtk_main() from within it without annoying the rest of the program.
 180  * XXX: the approach may look kludgy, and probably is, but I could not find
 181  * a better way to dynamically load a Gtk+ interface at runtime.
 182  *****************************************************************************/
 183 static void intf_Run( intf_thread_t *p_intf )
 184 {
 185     /* gtk_init needs to know the command line. We don't care, so we
 186      * give it an empty one */
 187     char  *p_args[] = { "" };
 188     char **pp_args  = p_args;
 189     int    i_args   = 1;
 190
 191     /* The data types we are allowed to receive */
 192     static GtkTargetEntry target_table[] =
 193     {
 194         { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
 195         { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
 196     };
 197
 198     /* intf_Manage callback timeout */
 199     int i_timeout;
 200
 201     /* Initialize Gtk+ */
 202     gtk_init( &i_args, &pp_args );
 203
 204     /* Create some useful widgets that will certainly be used */
 205     p_intf->p_sys->p_window = create_intf_window( );
 206     p_intf->p_sys->p_popup = create_intf_popup( );
 207     p_intf->p_sys->p_disc = create_intf_disc( );
 208     p_intf->p_sys->p_network = create_intf_network( );
 209     p_intf->p_sys->p_playlist = create_intf_playlist( );
 210
 211
 212     /* Set the title of the main window */
 213     gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
 214                           VOUT_TITLE " (Gtk+ interface)");
 215
 216     /* Accept file drops on the main window */
 217     gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
 218                        GTK_DEST_DEFAULT_ALL, target_table,
 219                        1, GDK_ACTION_COPY );
 220
 221     /* Accept file drops on the playlist window */
 222     gtk_drag_dest_set( GTK_WIDGET( lookup_widget( p_intf->p_sys->p_playlist,
 223                                                   "playlist_clist") ),
 224                        GTK_DEST_DEFAULT_ALL, target_table,
 225                        1, GDK_ACTION_COPY );
 226
 227     /* Get the interface labels */
 228     p_intf->p_sys->p_slider_frame = GTK_FRAME( gtk_object_get_data(
 229         GTK_OBJECT(p_intf->p_sys->p_window ), "slider_frame" ) );
 230
 231     /* Connect the date display to the slider */
 232     #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
 233                          GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
 234     p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
 235
 236     gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 237                          GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
 238     p_intf->p_sys->f_adj_oldvalue = 0;
 239     #undef P_SLIDER
 240
 241     /* We don't create these ones yet because we perhaps won't need them */
 242     p_intf->p_sys->p_about = NULL;
 243     p_intf->p_sys->p_modules = NULL;
 244     p_intf->p_sys->p_fileopen = NULL;
 245
 246     /* Store p_intf to keep an eye on it */
 247     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 248                          "p_intf", p_intf );
 249
 250     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
 251                          "p_intf", p_intf );
 252
 253     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_playlist),
 254                          "p_intf", p_intf );
 255
 256     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_disc),
 257                          "p_intf", p_intf );
 258
 259     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_network),
 260                          "p_intf", p_intf );
 261
 262     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
 263                          "p_intf", p_intf );
 264
 265     /* Show the control window */
 266     gtk_widget_show( p_intf->p_sys->p_window );
 267
 268     /* Sleep to avoid using all CPU - since some interfaces needs to access
 269      * keyboard events, a 100ms delay is a good compromise */
 270     i_timeout = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GtkManage, p_intf );
 271
 272     /* Enter Gtk mode */
 273     gtk_main();
 274
 275     /* Remove the timeout */
 276     gtk_timeout_remove( i_timeout );
 277
 278     /* Launch stored callbacks */
 279     if( p_intf->p_sys->pf_gtk_callback != NULL )
 280     {
 281         p_intf->p_sys->pf_gtk_callback();
 282
 283         if( p_intf->p_sys->pf_gdk_callback != NULL )
 284         {
 285             p_intf->p_sys->pf_gdk_callback();
 286         }
 287     }
 288 }
 289
 290 /* following functions are local */
 291
 292 /*****************************************************************************
 293  * GtkManage: manage main thread messages
 294  *****************************************************************************
 295  * In this function, called approx. 10 times a second, we check what the
 296  * main program wanted to tell us.
 297  *****************************************************************************/
 298
 299 static gint GtkManage( gpointer p_data )
 300 {
 301 #define p_intf ((intf_thread_t *)p_data)
 302
 303     GtkPlayListManage( p_data );
 304
 305     vlc_mutex_lock( &p_intf->change_lock );
 306
 307     /* If the "display popup" flag has changed */
 308     if( p_intf->b_menu_change )
 309     {
 310         if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
 311         {
 312             p_intf->p_sys->p_popup = create_intf_popup();
 313             gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
 314                                  "p_popup", p_intf );
 315         }
 316         gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
 317                         NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
 318         p_intf->b_menu_change = 0;
 319     }
 320
 321     if( p_intf->p_input != NULL )
 322     {
 323         /* Used by TS input when PMT changes */
 324         if( p_intf->p_input->stream.b_changed )
 325         {
 326             p_intf->p_sys->b_menus_update = 1;
 327             p_intf->p_input->stream.b_changed = 0;
 328             intf_WarnMsg( 3,
 329                           "Interface menus refreshed as stream has changed" );
 330         }
 331
 332     }
 333
 334     /* Update language/chapter menus after user request */
 335     if( p_intf->p_input != NULL && p_intf->p_sys->p_window != NULL &&
 336         p_intf->p_sys->b_menus_update )
 337     {
 338         es_descriptor_t *   p_audio_es;
 339         es_descriptor_t *   p_spu_es;
 340         GtkWidget *         p_menubar_menu;
 341         GtkWidget *         p_popup_menu;
 342         gint                i;
 343
 344         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 345                      p_intf->p_sys->p_window ), "menubar_title" ) );
 346
 347         GtkTitleMenu( p_intf, p_menubar_menu, on_menubar_title_activate );
 348
 349         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 350                      p_intf->p_sys->p_window ), "menubar_chapter" ) );
 351
 352         GtkChapterMenu( p_intf, p_menubar_menu, on_menubar_chapter_activate );
 353
 354         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 355                      p_intf->p_sys->p_popup ), "popup_navigation" ) );
 356
 357         GtkTitleMenu( p_intf, p_popup_menu, on_popup_navigation_activate );
 358
 359         /* look for selected ES */
 360         p_audio_es = NULL;
 361         p_spu_es = NULL;
 362
 363         for( i = 0 ; i < p_intf->p_input->stream.i_selected_es_number ; i++ )
 364         {
 365             if( p_intf->p_input->stream.pp_es[i]->i_cat == AUDIO_ES )
 366             {
 367                 p_audio_es = p_intf->p_input->stream.pp_es[i];
 368             }
 369
 370             if( p_intf->p_input->stream.pp_es[i]->i_cat == SPU_ES )
 371             {
 372                 p_spu_es = p_intf->p_input->stream.pp_es[i];
 373             }
 374         }
 375
 376         /* audio menus */
 377
 378         /* find audio root menu */
 379         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 380                              p_intf->p_sys->p_window ), "menubar_audio" ) );
 381
 382         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 383                      p_intf->p_sys->p_popup ), "popup_audio" ) );
 384
 385         GtkLanguageMenus( p_intf, p_menubar_menu, p_audio_es, AUDIO_ES,
 386                           on_menubar_audio_activate );
 387         GtkLanguageMenus( p_intf, p_popup_menu, p_audio_es, AUDIO_ES,
 388                           on_popup_audio_activate );
 389
 390         /* sub picture menus */
 391
 392         /* find spu root menu */
 393         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 394                           p_intf->p_sys->p_window ), "menubar_subpictures" ) );
 395
 396         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 397                      p_intf->p_sys->p_popup ), "popup_subpictures" ) );
 398
 399         GtkLanguageMenus( p_intf, p_menubar_menu, p_spu_es, SPU_ES,
 400                           on_menubar_subpictures_activate  );
 401         GtkLanguageMenus( p_intf, p_popup_menu, p_spu_es, SPU_ES,
 402                           on_popup_subpictures_activate );
 403
 404         /* everything is ready */
 405         p_intf->p_sys->b_menus_update = 0;
 406     }
 407
 408     /* Manage the slider */
 409     if( p_intf->p_input != NULL && p_intf->p_input->stream.b_seekable )
 410     {
 411         float newvalue = p_intf->p_sys->p_adj->value;
 412
 413 #define p_area p_intf->p_input->stream.p_selected_area
 414         /* If the user hasn't touched the slider since the last time,
 415          * then the input can safely change it */
 416         if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 417         {
 418             /* Update the value */
 419             p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue =
 420                 ( 100. * p_area->i_tell ) / p_area->i_size;
 421
 422             gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 423                                      "value_changed" );
 424         }
 425         /* Otherwise, send message to the input if the user has
 426          * finished dragging the slider */
 427         else if( p_intf->p_sys->b_slider_free )
 428         {
 429             off_t i_seek = ( newvalue * p_area->i_size ) / 100;
 430
 431             input_Seek( p_intf->p_input, i_seek );
 432
 433             /* Update the old value */
 434             p_intf->p_sys->f_adj_oldvalue = newvalue;
 435         }
 436 #undef p_area
 437     }
 438
 439     /* Manage core vlc functions through the callback */
 440     p_intf->pf_manage( p_intf );
 441
 442     if( p_intf->b_die )
 443     {
 444         vlc_mutex_unlock( &p_intf->change_lock );
 445
 446         /* Prepare to die, young Skywalker */
 447         gtk_main_quit();
 448
 449         /* Just in case */
 450         return( FALSE );
 451     }
 452
 453     vlc_mutex_unlock( &p_intf->change_lock );
 454
 455     return( TRUE );
 456
 457 #undef p_intf
 458 }
 459
 460 /*****************************************************************************
 461  * GtkMenuRadioItem: give a menu item adapted to language/title selection,
 462  * ie the menu item is a radio button.
 463  *****************************************************************************/
 464 static GtkWidget * GtkMenuRadioItem( GtkWidget * p_menu,
 465                                      GSList **   p_button_group,
 466                                      gint        b_active,
 467                                      char *      psz_name )
 468 {
 469     GtkWidget *     p_item;
 470
 471 #if 0
 472     GtkWidget *     p_button;
 473
 474     /* create button */
 475     p_button =
 476         gtk_radio_button_new_with_label( *p_button_group, psz_name );
 477
 478     /* add button to group */
 479     *p_button_group =
 480         gtk_radio_button_group( GTK_RADIO_BUTTON( p_button ) );
 481
 482     /* prepare button for display */
 483     gtk_widget_show( p_button );
 484
 485     /* create menu item to store button */
 486     p_item = gtk_menu_item_new();
 487
 488     /* put button inside item */
 489     gtk_container_add( GTK_CONTAINER( p_item ), p_button );
 490
 491     /* add item to menu */
 492     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 493
 494           gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 495                GTK_SIGNAL_FUNC( on_audio_toggle ),
 496                NULL );
 497
 498
 499     /* prepare item for display */
 500     gtk_widget_show( p_item );
 501
 502     /* is it the selected item ? */
 503     if( b_active )
 504     {
 505         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( p_button ), TRUE );
 506     }
 507 #else
 508     p_item = gtk_menu_item_new_with_label( psz_name );
 509     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 510     gtk_widget_show( p_item );
 511 #endif
 512
 513     return p_item;
 514 }
 515
 516 /*****************************************************************************
 517  * GtkLanguageMenus: update interactive menus of the interface
 518  *****************************************************************************
 519  * Sets up menus with information from input:
 520  *  -languages
 521  *  -sub-pictures
 522  * Warning: since this function is designed to be called by management
 523  * function, the interface lock has to be taken
 524  *****************************************************************************/
 525 static gint GtkLanguageMenus( gpointer          p_data,
 526                               GtkWidget *       p_root,
 527                               es_descriptor_t * p_es,
 528                               gint              i_cat,
 529                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 530 {
 531     intf_thread_t *     p_intf;
 532     GtkWidget *         p_menu;
 533     GtkWidget *         p_separator;
 534     GtkWidget *         p_item;
 535     GSList *            p_button_group;
 536     char *              psz_name;
 537     gint                b_active;
 538     gint                i;
 539
 540
 541
 542     /* cast */
 543     p_intf = (intf_thread_t *)p_data;
 544
 545     vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 546
 547     p_button_group = NULL;
 548
 549     /* menu container for audio */
 550     p_menu = gtk_menu_new();
 551
 552     /* create a set of language buttons and append them to the container */
 553     b_active = ( p_es == NULL );
 554     psz_name = "Off";
 555
 556     p_item = GtkMenuRadioItem( p_menu, &p_button_group, b_active, psz_name );
 557
 558     /* setup signal hanling */
 559     gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 560             GTK_SIGNAL_FUNC ( pf_activate ), NULL );
 561
 562     p_separator = gtk_menu_item_new();
 563     gtk_widget_show( p_separator );
 564     gtk_menu_append( GTK_MENU( p_menu ), p_separator );
 565     gtk_widget_set_sensitive( p_separator, FALSE );
 566
 567     for( i = 0 ; i < p_intf->p_input->stream.i_es_number ; i++ )
 568     {
 569         if( p_intf->p_input->stream.pp_es[i]->i_cat == i_cat )
 570         {
 571             b_active = ( p_es == p_intf->p_input->stream.pp_es[i] ) ? 1 : 0;
 572             psz_name = p_intf->p_input->stream.pp_es[i]->psz_desc;
 573
 574             p_item = GtkMenuRadioItem( p_menu, &p_button_group,
 575                                        b_active, psz_name );
 576
 577             /* setup signal hanling */
 578             gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 579                GTK_SIGNAL_FUNC( pf_activate ),
 580                  (gpointer)( p_intf->p_input->stream.pp_es[i] ) );
 581
 582         }
 583     }
 584
 585     /* link the new menu to the menubar item */
 586     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_root ), p_menu );
 587
 588     /* be sure that menu is sensitive */
 589     gtk_widget_set_sensitive( p_root, TRUE );
 590
 591     vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 592
 593     return TRUE;
 594 }
 595
 596 /*****************************************************************************
 597  * GtkChapterMenu: generate chapter menu for current title
 598  *****************************************************************************/
 599 static gint GtkChapterMenu( gpointer p_data, GtkWidget * p_chapter,
 600                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 601 {
 602     intf_thread_t *     p_intf;
 603     char                psz_name[ GTK_MENU_LABEL_SIZE ];
 604     GtkWidget *         p_chapter_menu;
 605     GtkWidget *         p_item;
 606     GSList *            p_chapter_button_group;
 607     gint                i_title;
 608     gint                i_chapter;
 609     gint                b_active;
 610
 611     /* cast */
 612     p_intf = (intf_thread_t*)p_data;
 613
 614     i_title = p_intf->p_input->stream.p_selected_area->i_id;
 615     p_chapter_menu = gtk_menu_new();
 616
 617     for( i_chapter = 0;
 618          i_chapter < p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 619          i_chapter++ )
 620     {
 621         b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 622                      == i_chapter + 1 ) ? 1 : 0;
 623
 624         snprintf( psz_name, GTK_MENU_LABEL_SIZE,
 625                   "Chapter %d", i_chapter + 1 );
 626         psz_name[ GTK_MENU_LABEL_SIZE - 1 ] = '\0';
 627
 628         p_item = GtkMenuRadioItem( p_chapter_menu, &p_chapter_button_group,
 629                                    b_active, psz_name );
 630         /* setup signal hanling */
 631         gtk_signal_connect( GTK_OBJECT( p_item ),
 632                         "activate",
 633                         GTK_SIGNAL_FUNC( pf_activate ),
 634                         (gpointer)(i_chapter + 1) );
 635     }
 636
 637     /* link the new menu to the title menu item */
 638     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_chapter ),
 639                                p_chapter_menu );
 640
 641     /* be sure that chapter menu is sensitive */
 642     gtk_widget_set_sensitive( p_chapter, TRUE );
 643
 644     return TRUE;
 645 }
 646
 647 /*****************************************************************************
 648  * GtkTitleMenu: sets menus for titles and chapters selection
 649  *****************************************************************************
 650  * Generates two type of menus:
 651  *  -simple list of titles
 652  *  -cascaded lists of chapters for each title
 653  *****************************************************************************/
 654 static gint GtkTitleMenu( gpointer       p_data,
 655                           GtkWidget *    p_navigation,
 656                           void(*pf_activate )( GtkMenuItem *, gpointer ) )
 657 {
 658     intf_thread_t *     p_intf;
 659     char                psz_name[ GTK_MENU_LABEL_SIZE ];
 660     GtkWidget *         p_title_menu;
 661     GtkWidget *         p_title_item;
 662     GtkWidget *         p_chapter_menu;
 663     GtkWidget *         p_item;
 664     GSList *            p_title_button_group;
 665     GSList *            p_chapter_button_group;
 666     gint                i_title;
 667     gint                i_chapter;
 668     gint                b_active;
 669
 670     /* cast */
 671     p_intf = (intf_thread_t*)p_data;
 672
 673     p_title_menu = gtk_menu_new();
 674     p_title_button_group = NULL;
 675     p_chapter_button_group = NULL;
 676
 677     /* loop on titles */
 678     for( i_title = 1 ;
 679          i_title < p_intf->p_input->stream.i_area_nb ;
 680          i_title++ )
 681     {
 682         b_active = ( p_intf->p_input->stream.pp_areas[i_title] ==
 683                      p_intf->p_input->stream.p_selected_area ) ? 1 : 0;
 684         snprintf( psz_name, GTK_MENU_LABEL_SIZE, "Title %d", i_title );
 685         psz_name[ GTK_MENU_LABEL_SIZE - 1 ] = '\0';
 686
 687         p_title_item = GtkMenuRadioItem( p_title_menu, &p_title_button_group,
 688                                          b_active, psz_name );
 689
 690         if( pf_activate == on_menubar_title_activate )
 691         {
 692             /* setup signal hanling */
 693             gtk_signal_connect( GTK_OBJECT( p_title_item ),
 694                      "activate",
 695                      GTK_SIGNAL_FUNC( pf_activate ),
 696                      (gpointer)(p_intf->p_input->stream.pp_areas[i_title]) );
 697         }
 698         else
 699         {
 700             p_chapter_menu = gtk_menu_new();
 701
 702             for( i_chapter = 0;
 703                  i_chapter <
 704                         p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 705                  i_chapter++ )
 706             {
 707                 b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 708                              == i_chapter + 1 ) ? 1 : 0;
 709
 710                 snprintf( psz_name, GTK_MENU_LABEL_SIZE,
 711                           "Chapter %d", i_chapter + 1 );
 712                 psz_name[ GTK_MENU_LABEL_SIZE - 1 ] = '\0';
 713
 714                 p_item = GtkMenuRadioItem( p_chapter_menu,
 715                                            &p_chapter_button_group,
 716                                            b_active, psz_name );
 717
 718                 /* setup signal hanling */
 719                 gtk_signal_connect( GTK_OBJECT( p_item ),
 720                            "activate",
 721                            GTK_SIGNAL_FUNC( pf_activate ),
 722                            (gpointer)( ( i_title * 100 ) + ( i_chapter + 1) ) );
 723         }
 724
 725         /* link the new menu to the title menu item */
 726         gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_title_item ),
 727                                    p_chapter_menu );
 728         }
 729
 730         /* be sure that chapter menu is sensitive */
 731         gtk_widget_set_sensitive( p_title_menu, TRUE );
 732
 733     }
 734
 735     /* link the new menu to the menubar audio item */
 736     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_navigation ), p_title_menu );
 737
 738     /* be sure that audio menu is sensitive */
 739     gtk_widget_set_sensitive( p_navigation, TRUE );
 740
 741
 742     return TRUE;
 743 }
 744
 745 void GtkDisplayDate( GtkAdjustment *p_adj )
 746 {
 747     intf_thread_t *p_intf;
 748
 749     p_intf = gtk_object_get_data( GTK_OBJECT( p_adj ), "p_intf" );
 750
 751     if( p_intf->p_input != NULL )
 752     {
 753 #define p_area p_intf->p_input->stream.p_selected_area
 754         char psz_time[ OFFSETTOTIME_MAX_SIZE ];
 755
 756         vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 757
 758         gtk_frame_set_label( p_intf->p_sys->p_slider_frame,
 759                             input_OffsetToTime( p_intf->p_input, psz_time,
 760                                    ( p_area->i_size * p_adj->value ) / 100 ) );
 761
 762         vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 763 #undef p_area
 764      }
 765 }
 766
 767