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 1.12 2001/04/11 12:52:10 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     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     #define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
 229                          GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
 230     p_intf->p_sys->p_label_date = P_LABEL( "label_date" );
 231     p_intf->p_sys->p_label_status = P_LABEL( "label_status" );
 232     #undef P_LABEL
 233
 234     /* Connect the date display to the slider */
 235     #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
 236                          GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
 237     p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
 238
 239     gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 240                          GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
 241     p_intf->p_sys->f_adj_oldvalue = 0;
 242     #undef P_SLIDER
 243
 244     /* We don't create these ones yet because we perhaps won't need them */
 245     p_intf->p_sys->p_about = NULL;
 246     p_intf->p_sys->p_modules = NULL;
 247     p_intf->p_sys->p_fileopen = NULL;
 248
 249     /* Store p_intf to keep an eye on it */
 250     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 251                          "p_intf", p_intf );
 252
 253     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
 254                          "p_intf", p_intf );
 255
 256     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_playlist),
 257                          "p_intf", p_intf );
 258
 259     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_disc),
 260                          "p_intf", p_intf );
 261
 262     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_network),
 263                          "p_intf", p_intf );
 264
 265     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
 266                          "p_intf", p_intf );
 267
 268     /* Show the control window */
 269     gtk_widget_show( p_intf->p_sys->p_window );
 270
 271     /* Sleep to avoid using all CPU - since some interfaces needs to access
 272      * keyboard events, a 100ms delay is a good compromise */
 273     i_timeout = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GtkManage, p_intf );
 274
 275     /* Enter Gtk mode */
 276     gtk_main();
 277
 278     /* Remove the timeout */
 279     gtk_timeout_remove( i_timeout );
 280
 281     /* Launch stored callbacks */
 282     if( p_intf->p_sys->pf_gtk_callback != NULL )
 283     {
 284         p_intf->p_sys->pf_gtk_callback();
 285
 286         if( p_intf->p_sys->pf_gdk_callback != NULL )
 287         {
 288             p_intf->p_sys->pf_gdk_callback();
 289         }
 290     }
 291 }
 292
 293 /* following functions are local */
 294
 295 /*****************************************************************************
 296  * GtkManage: manage main thread messages
 297  *****************************************************************************
 298  * In this function, called approx. 10 times a second, we check what the
 299  * main program wanted to tell us.
 300  *****************************************************************************/
 301
 302 static gint GtkManage( gpointer p_data )
 303 {
 304 #define p_intf ((intf_thread_t *)p_data)
 305
 306     GtkPlayListManage( p_data );
 307
 308     vlc_mutex_lock( &p_intf->change_lock );
 309
 310     /* If the "display popup" flag has changed */
 311     if( p_intf->b_menu_change )
 312     {
 313         if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
 314         {
 315             p_intf->p_sys->p_popup = create_intf_popup();
 316             gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
 317                                  "p_popup", p_intf );
 318         }
 319         gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
 320                         NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
 321         p_intf->b_menu_change = 0;
 322     }
 323
 324     /* Update language/chapter menus after user request */
 325     if( p_intf->p_input != NULL && p_intf->p_sys->p_window != NULL &&
 326         p_intf->p_sys->b_menus_update )
 327     {
 328         es_descriptor_t *   p_audio_es;
 329         es_descriptor_t *   p_spu_es;
 330         GtkWidget *         p_menubar_menu;
 331         GtkWidget *         p_popup_menu;
 332         gint                i;
 333
 334         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 335                      p_intf->p_sys->p_window ), "menubar_title" ) );
 336
 337         GtkTitleMenu( p_intf, p_menubar_menu, on_menubar_title_activate );
 338
 339         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 340                      p_intf->p_sys->p_window ), "menubar_chapter" ) );
 341
 342         GtkChapterMenu( p_intf, p_menubar_menu, on_menubar_chapter_activate );
 343
 344         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 345                      p_intf->p_sys->p_popup ), "popup_navigation" ) );
 346
 347         GtkTitleMenu( p_intf, p_popup_menu, on_popup_navigation_activate );
 348
 349         /* look for selected ES */
 350         p_audio_es = NULL;
 351         p_spu_es = NULL;
 352
 353         for( i = 0 ; i < p_intf->p_input->stream.i_selected_es_number ; i++ )
 354         {
 355             if( p_intf->p_input->stream.pp_es[i]->i_cat == AUDIO_ES )
 356             {
 357                 p_audio_es = p_intf->p_input->stream.pp_es[i];
 358             }
 359
 360             if( p_intf->p_input->stream.pp_es[i]->i_cat == SPU_ES )
 361             {
 362                 p_spu_es = p_intf->p_input->stream.pp_es[i];
 363             }
 364         }
 365
 366         /* audio menus */
 367
 368         /* find audio root menu */
 369         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 370                              p_intf->p_sys->p_window ), "menubar_audio" ) );
 371
 372         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 373                      p_intf->p_sys->p_popup ), "popup_audio" ) );
 374
 375         GtkLanguageMenus( p_intf, p_menubar_menu, p_audio_es, AUDIO_ES,
 376                           on_menubar_audio_activate );
 377         GtkLanguageMenus( p_intf, p_popup_menu, p_audio_es, AUDIO_ES,
 378                           on_popup_audio_activate );
 379
 380         /* sub picture menus */
 381
 382         /* find spu root menu */
 383         p_menubar_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 384                           p_intf->p_sys->p_window ), "menubar_subpictures" ) );
 385
 386         p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
 387                      p_intf->p_sys->p_popup ), "popup_subpictures" ) );
 388
 389         GtkLanguageMenus( p_intf, p_menubar_menu, p_spu_es, SPU_ES,
 390                           on_menubar_subpictures_activate  );
 391         GtkLanguageMenus( p_intf, p_popup_menu, p_spu_es, SPU_ES,
 392                           on_popup_subpictures_activate );
 393
 394         /* everything is ready */
 395         p_intf->p_sys->b_menus_update = 0;
 396     }
 397
 398     /* Manage the slider */
 399     if( p_intf->p_input != NULL )
 400     {
 401         float newvalue = p_intf->p_sys->p_adj->value;
 402
 403 #define p_area p_intf->p_input->stream.p_selected_area
 404         /* If the user hasn't touched the slider since the last time,
 405          * then the input can safely change it */
 406         if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 407         {
 408             /* Update the value */
 409             p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue =
 410                 ( 100. * p_area->i_tell ) / p_area->i_size;
 411
 412             gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 413                                      "value_changed" );
 414         }
 415         /* Otherwise, send message to the input if the user has
 416          * finished dragging the slider */
 417         else if( p_intf->p_sys->b_slider_free )
 418         {
 419             off_t i_seek = ( newvalue * p_area->i_size ) / 100;
 420
 421             input_Seek( p_intf->p_input, i_seek );
 422
 423             /* Update the old value */
 424             p_intf->p_sys->f_adj_oldvalue = newvalue;
 425         }
 426 #undef p_area
 427     }
 428
 429     /* Manage core vlc functions through the callback */
 430     p_intf->pf_manage( p_intf );
 431
 432     if( p_intf->b_die )
 433     {
 434         vlc_mutex_unlock( &p_intf->change_lock );
 435
 436         /* Prepare to die, young Skywalker */
 437         gtk_main_quit();
 438
 439         /* Just in case */
 440         return( FALSE );
 441     }
 442
 443     vlc_mutex_unlock( &p_intf->change_lock );
 444
 445     return( TRUE );
 446
 447 #undef p_intf
 448 }
 449
 450 /*****************************************************************************
 451  * GtkMenuRadioItem: give a menu item adapted to language/title selection,
 452  * ie the menu item is a radio button.
 453  *****************************************************************************/
 454 static GtkWidget * GtkMenuRadioItem( GtkWidget * p_menu,
 455                                      GSList **   p_button_group,
 456                                      gint        b_active,
 457                                      char *      psz_name )
 458 {
 459     GtkWidget *     p_item;
 460
 461 #if 0
 462     GtkWidget *     p_button;
 463
 464     /* create button */
 465     p_button =
 466         gtk_radio_button_new_with_label( *p_button_group, psz_name );
 467
 468     /* add button to group */
 469     *p_button_group =
 470         gtk_radio_button_group( GTK_RADIO_BUTTON( p_button ) );
 471
 472     /* prepare button for display */
 473     gtk_widget_show( p_button );
 474
 475     /* create menu item to store button */
 476     p_item = gtk_menu_item_new();
 477
 478     /* put button inside item */
 479     gtk_container_add( GTK_CONTAINER( p_item ), p_button );
 480
 481     /* add item to menu */
 482     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 483
 484           gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 485                GTK_SIGNAL_FUNC( on_audio_toggle ),
 486                NULL );
 487
 488
 489     /* prepare item for display */
 490     gtk_widget_show( p_item );
 491
 492     /* is it the selected item ? */
 493     if( b_active )
 494     {
 495         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( p_button ), TRUE );
 496     }
 497 #else
 498     p_item = gtk_menu_item_new_with_label( psz_name );
 499     gtk_menu_append( GTK_MENU( p_menu ), p_item );
 500     gtk_widget_show( p_item );
 501 #endif
 502
 503     return p_item;
 504 }
 505
 506 /*****************************************************************************
 507  * GtkLanguageMenus: update interactive menus of the interface
 508  *****************************************************************************
 509  * Sets up menus with information from input:
 510  *  -languages
 511  *  -sub-pictures
 512  * Warning: since this function is designed to be called by management
 513  * function, the interface lock has to be taken
 514  *****************************************************************************/
 515 static gint GtkLanguageMenus( gpointer          p_data,
 516                               GtkWidget *       p_root,
 517                               es_descriptor_t * p_es,
 518                               gint              i_cat,
 519                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 520 {
 521     intf_thread_t *     p_intf;
 522     GtkWidget *         p_menu;
 523     GtkWidget *         p_separator;
 524     GtkWidget *         p_item;
 525     GSList *            p_button_group;
 526     char *              psz_name;
 527     gint                b_active;
 528     gint                i;
 529
 530
 531
 532     /* cast */
 533     p_intf = (intf_thread_t *)p_data;
 534
 535     vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 536
 537     p_button_group = NULL;
 538
 539     /* menu container for audio */
 540     p_menu = gtk_menu_new();
 541
 542     /* create a set of language buttons and append them to the container */
 543     b_active = ( p_es == NULL );
 544     psz_name = "Off";
 545
 546     p_item = GtkMenuRadioItem( p_menu, &p_button_group, b_active, psz_name );
 547
 548     /* setup signal hanling */
 549     gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 550             GTK_SIGNAL_FUNC ( pf_activate ), NULL );
 551
 552     p_separator = gtk_menu_item_new();
 553     gtk_widget_show( p_separator );
 554     gtk_menu_append( GTK_MENU( p_menu ), p_separator );
 555     gtk_widget_set_sensitive( p_separator, FALSE );
 556
 557     for( i = 0 ; i < p_intf->p_input->stream.i_es_number ; i++ )
 558     {
 559         if( p_intf->p_input->stream.pp_es[i]->i_cat == i_cat )
 560         {
 561             b_active = ( p_es == p_intf->p_input->stream.pp_es[i] ) ? 1 : 0;
 562             psz_name = p_intf->p_input->stream.pp_es[i]->psz_desc;
 563
 564             p_item = GtkMenuRadioItem( p_menu, &p_button_group,
 565                                        b_active, psz_name );
 566
 567             /* setup signal hanling */
 568             gtk_signal_connect( GTK_OBJECT( p_item ), "activate",
 569                GTK_SIGNAL_FUNC( pf_activate ),
 570                  (gpointer)( p_intf->p_input->stream.pp_es[i] ) );
 571
 572         }
 573     }
 574
 575     /* link the new menu to the menubar item */
 576     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_root ), p_menu );
 577
 578     /* be sure that menu is sensitive */
 579     gtk_widget_set_sensitive( p_root, TRUE );
 580
 581     vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 582
 583     return TRUE;
 584 }
 585
 586 /*****************************************************************************
 587  * GtkChapterMenu: generate chapter menu for current title
 588  *****************************************************************************/
 589 static gint GtkChapterMenu( gpointer p_data, GtkWidget * p_chapter,
 590                         void(*pf_activate )( GtkMenuItem *, gpointer ) )
 591 {
 592     intf_thread_t *     p_intf;
 593     char                psz_name[10];
 594     GtkWidget *         p_chapter_menu;
 595     GtkWidget *         p_item;
 596     GSList *            p_chapter_button_group;
 597     gint                i_title;
 598     gint                i_chapter;
 599     gint                b_active;
 600
 601     /* cast */
 602     p_intf = (intf_thread_t*)p_data;
 603
 604     i_title = p_intf->p_input->stream.p_selected_area->i_id;
 605     p_chapter_menu = gtk_menu_new();
 606
 607     for( i_chapter = 0;
 608          i_chapter < p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 609          i_chapter++ )
 610     {
 611         b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 612                      == i_chapter + 1 ) ? 1 : 0;
 613
 614         sprintf( psz_name, "Chapter %d", i_chapter + 1 );
 615
 616         p_item = GtkMenuRadioItem( p_chapter_menu, &p_chapter_button_group,
 617                                    b_active, psz_name );
 618         /* setup signal hanling */
 619         gtk_signal_connect( GTK_OBJECT( p_item ),
 620                         "activate",
 621                         GTK_SIGNAL_FUNC( pf_activate ),
 622                         (gpointer)(i_chapter + 1) );
 623     }
 624
 625     /* link the new menu to the title menu item */
 626     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_chapter ),
 627                                p_chapter_menu );
 628
 629     /* be sure that chapter menu is sensitive */
 630     gtk_widget_set_sensitive( p_chapter, TRUE );
 631
 632     return TRUE;
 633 }
 634
 635 /*****************************************************************************
 636  * GtkTitleMenu: sets menus for titles and chapters selection
 637  *****************************************************************************
 638  * Generates two type of menus:
 639  *  -simple list of titles
 640  *  -cascaded lists of chapters for each title
 641  *****************************************************************************/
 642 static gint GtkTitleMenu( gpointer       p_data,
 643                           GtkWidget *    p_navigation,
 644                           void(*pf_activate )( GtkMenuItem *, gpointer ) )
 645 {
 646     intf_thread_t *     p_intf;
 647     char                psz_name[10];
 648     GtkWidget *         p_title_menu;
 649     GtkWidget *         p_title_item;
 650     GtkWidget *         p_chapter_menu;
 651     GtkWidget *         p_item;
 652     GSList *            p_title_button_group;
 653     GSList *            p_chapter_button_group;
 654     gint                i_title;
 655     gint                i_chapter;
 656     gint                b_active;
 657
 658     /* cast */
 659     p_intf = (intf_thread_t*)p_data;
 660
 661     p_title_menu = gtk_menu_new();
 662     p_title_button_group = NULL;
 663     p_chapter_button_group = NULL;
 664
 665     /* loop on titles */
 666     for( i_title = 1 ;
 667          i_title < p_intf->p_input->stream.i_area_nb ;
 668          i_title++ )
 669     {
 670         b_active = ( p_intf->p_input->stream.pp_areas[i_title] ==
 671                      p_intf->p_input->stream.p_selected_area ) ? 1 : 0;
 672         sprintf( psz_name, "Title %d", i_title );
 673
 674         p_title_item = GtkMenuRadioItem( p_title_menu, &p_title_button_group,
 675                                          b_active, psz_name );
 676
 677         if( pf_activate == on_menubar_title_activate )
 678         {
 679             /* setup signal hanling */
 680             gtk_signal_connect( GTK_OBJECT( p_title_item ),
 681                      "activate",
 682                      GTK_SIGNAL_FUNC( pf_activate ),
 683                      (gpointer)(p_intf->p_input->stream.pp_areas[i_title]) );
 684         }
 685         else
 686         {
 687             p_chapter_menu = gtk_menu_new();
 688
 689             for( i_chapter = 0;
 690                  i_chapter <
 691                         p_intf->p_input->stream.pp_areas[i_title]->i_part_nb ;
 692                  i_chapter++ )
 693             {
 694                 b_active = ( p_intf->p_input->stream.pp_areas[i_title]->i_part
 695                              == i_chapter + 1 ) ? 1 : 0;
 696
 697                 sprintf( psz_name, "Chapter %d", i_chapter + 1 );
 698
 699                 p_item = GtkMenuRadioItem( p_chapter_menu,
 700                                            &p_chapter_button_group,
 701                                            b_active, psz_name );
 702
 703                 /* setup signal hanling */
 704                 gtk_signal_connect( GTK_OBJECT( p_item ),
 705                            "activate",
 706                            GTK_SIGNAL_FUNC( pf_activate ),
 707                            (gpointer)( ( i_title * 100 ) + ( i_chapter + 1) ) );
 708         }
 709
 710         /* link the new menu to the title menu item */
 711         gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_title_item ),
 712                                    p_chapter_menu );
 713         }
 714
 715         /* be sure that chapter menu is sensitive */
 716         gtk_widget_set_sensitive( p_title_menu, TRUE );
 717
 718     }
 719
 720     /* link the new menu to the menubar audio item */
 721     gtk_menu_item_set_submenu( GTK_MENU_ITEM( p_navigation ), p_title_menu );
 722
 723     /* be sure that audio menu is sensitive */
 724     gtk_widget_set_sensitive( p_navigation, TRUE );
 725
 726
 727     return TRUE;
 728 }
 729
 730 void GtkDisplayDate( GtkAdjustment *p_adj )
 731 {
 732     intf_thread_t *p_intf;
 733
 734     p_intf = gtk_object_get_data( GTK_OBJECT( p_adj ), "p_intf" );
 735
 736     if( p_intf->p_input != NULL )
 737     {
 738 #define p_area p_intf->p_input->stream.p_selected_area
 739         char psz_time[ OFFSETTOTIME_MAX_SIZE ];
 740
 741         vlc_mutex_lock( &p_intf->p_input->stream.stream_lock );
 742
 743         gtk_label_set_text( p_intf->p_sys->p_label_date,
 744                             input_OffsetToTime( p_intf->p_input, psz_time,
 745                                    ( p_area->i_size * p_adj->value ) / 100 ) );
 746
 747         vlc_mutex_unlock( &p_intf->p_input->stream.stream_lock );
 748 #undef p_area
 749      }
 750 }
 751
 752