git.sesse.net Git - vlc/blob - modules/gui/pda/pda.c

   1 /*****************************************************************************
   2  * pda.c : PDA Gtk2 plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002 VideoLAN
   5  * $Id: pda.c,v 1.21 2004/02/13 10:09:46 jpsaman Exp $
   6  *
   7  * Authors: Jean-Paul Saman <jpsaman@wxs.nl>
   8  *          Marc Ariberti <marcari@videolan.org>
   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 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <stdlib.h>                                      /* malloc(), free() */
  29 #include <errno.h>                                                 /* ENOMEM */
  30 #include <string.h>                                            /* strerror() */
  31 #include <stdio.h>
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc/intf.h>
  35
  36 #include <gtk/gtk.h>
  37
  38 #include "pda_callbacks.h"
  39 #include "pda_interface.h"
  40 #include "pda_support.h"
  41 #include "pda.h"
  42
  43 /*****************************************************************************
  44  * Local prototypes.
  45  *****************************************************************************/
  46 static int  Open         ( vlc_object_t * );
  47 static void Close        ( vlc_object_t * );
  48 static void Run          ( intf_thread_t * );
  49
  50 void GtkAutoPlayFile     ( vlc_object_t * );
  51 static int Manage        ( intf_thread_t *p_intf );
  52 void E_(GtkDisplayDate)  ( GtkAdjustment *p_adj, gpointer userdata );
  53 gint E_(GtkModeManage)   ( intf_thread_t * p_intf );
  54
  55 /*****************************************************************************
  56  * Module descriptor
  57  *****************************************************************************/
  58 #define AUTOPLAYFILE_TEXT  N_("Autoplay selected file")
  59 #define AUTOPLAYFILE_LONGTEXT N_("Automatically play a file when selected in the "\
  60         "file selection list")
  61
  62 /*****************************************************************************
  63  * Module descriptor
  64  *****************************************************************************/
  65 vlc_module_begin();
  66     set_description( _("PDA Linux Gtk2+ interface") );
  67 //    add_bool( "pda-autoplayfile", 1, GtkAutoPlayFile, AUTOPLAYFILE_TEXT, AUTOPLAYFILE_LONGTEXT, VLC_TRUE );
  68     set_capability( "interface", 70 );
  69     set_callbacks( Open, Close );
  70     add_shortcut( "pda" );
  71 vlc_module_end();
  72
  73 /*****************************************************************************
  74  * Open: initialize and create window
  75  *****************************************************************************/
  76 static int Open( vlc_object_t *p_this )
  77 {
  78     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  79
  80     /* Allocate instance and initialize some members */
  81     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  82     if( p_intf->p_sys == NULL )
  83     {
  84         msg_Err( p_intf, "out of memory" );
  85         return VLC_ENOMEM;
  86     }
  87
  88 #ifdef NEED_GTK2_MAIN
  89     msg_Dbg( p_intf, "Using gui-helper" );
  90     p_intf->p_sys->p_gtk_main = module_Need( p_this, "gui-helper", "gtk2" );
  91     if( p_intf->p_sys->p_gtk_main == NULL )
  92     {
  93         free( p_intf->p_sys );
  94         return VLC_ENOMOD;
  95     }
  96 #endif
  97
  98     /* Initialize Gtk+ thread */
  99     p_intf->p_sys->p_input = NULL;
 100
 101     p_intf->p_sys->b_autoplayfile = 1;
 102     p_intf->p_sys->b_playing = 0;
 103     p_intf->p_sys->b_slider_free = 1;
 104
 105     p_intf->pf_run = Run;
 106
 107     return VLC_SUCCESS;
 108 }
 109
 110 /*****************************************************************************
 111  * Close: destroy interface window
 112  *****************************************************************************/
 113 static void Close( vlc_object_t *p_this )
 114 {
 115     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 116
 117     if( p_intf->p_sys->p_input )
 118     {
 119         vlc_object_release( p_intf->p_sys->p_input );
 120     }
 121
 122 #ifdef NEED_GTK2_MAIN
 123     msg_Dbg( p_intf, "Releasing gui-helper" );
 124     module_Unneed( p_intf, p_intf->p_sys->p_gtk_main );
 125 #endif
 126
 127     /* Destroy structure */
 128     free( p_intf->p_sys );
 129 }
 130
 131 /*****************************************************************************
 132  * Run: Gtk+ thread
 133  *****************************************************************************
 134  * this part of the interface is in a separate thread so that we can call
 135  * gtk_main() from within it without annoying the rest of the program.
 136  *****************************************************************************/
 137 static void Run( intf_thread_t *p_intf )
 138 {
 139 #ifndef NEED_GTK2_MAIN
 140     /* gtk_init needs to know the command line. We don't care, so we
 141      * give it an empty one */
 142     char  *p_args[] = { "", NULL };
 143     char **pp_args  = p_args;
 144     int    i_args   = 1;
 145     int    i_dummy;
 146 #endif
 147     playlist_t        *p_playlist;
 148     GtkCellRenderer   *p_renderer = NULL;
 149     GtkTreeViewColumn *p_column   = NULL;
 150     GtkListStore      *p_filelist = NULL;
 151     GtkListStore      *p_playlist_store = NULL;
 152
 153 #ifndef NEED_GTK2_MAIN
 154     gtk_set_locale ();
 155     msg_Dbg( p_intf, "Starting pda GTK2+ interface" );
 156     gtk_init( &i_args, &pp_args );
 157 #else
 158     /* Initialize Gtk+ */
 159     msg_Dbg( p_intf, "Starting pda GTK2+ interface thread" );
 160     gdk_threads_enter();
 161 #endif
 162
 163     /* Create some useful widgets that will certainly be used */
 164 /* FIXME: magic path */
 165     add_pixmap_directory("share");
 166     add_pixmap_directory("/usr/share/vlc");
 167
 168     /* Path for pixmaps under linupy 1.4 */
 169     add_pixmap_directory("/usr/local/share/pixmaps/vlc");
 170     /* Path for pixmaps under linupy 2.0 */
 171     add_pixmap_directory("/usr/share/pixmaps/vlc");
 172
 173     p_intf->p_sys->p_window = create_pda();
 174     if (p_intf->p_sys->p_window == NULL)
 175     {
 176         msg_Err( p_intf, "unable to create pda interface" );
 177     }
 178
 179     /* Store p_intf to keep an eye on it */
 180     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 181                          "p_intf", p_intf );
 182
 183     /* Set the title of the main window */
 184     gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
 185                           VOUT_TITLE " (PDA Linux interface)");
 186
 187     /* Get the notebook object */
 188     p_intf->p_sys->p_notebook = GTK_NOTEBOOK( gtk_object_get_data(
 189         GTK_OBJECT( p_intf->p_sys->p_window ), "notebook" ) );
 190
 191     /* Get the slider object */
 192     p_intf->p_sys->p_slider = (GtkHScale*) lookup_widget( p_intf->p_sys->p_window, "timeSlider" );
 193     p_intf->p_sys->p_slider_label = (GtkLabel*) lookup_widget( p_intf->p_sys->p_window, "timeLabel" );
 194     if (p_intf->p_sys->p_slider == NULL)
 195         msg_Err( p_intf, "Time slider widget not found." );
 196     if (p_intf->p_sys->p_slider_label == NULL)
 197         msg_Err( p_intf, "Time label widget not found." );
 198
 199     /* Connect the date display to the slider */
 200     p_intf->p_sys->p_adj = gtk_range_get_adjustment( GTK_RANGE(p_intf->p_sys->p_slider) );
 201     if (p_intf->p_sys->p_adj == NULL)
 202         msg_Err( p_intf, "Adjustment range not found." );
 203     g_signal_connect( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 204                          G_CALLBACK( E_(GtkDisplayDate) ), p_intf );
 205     p_intf->p_sys->f_adj_oldvalue = 0;
 206     p_intf->p_sys->i_adj_oldvalue = 0;
 207
 208     /* BEGIN OF FILEVIEW GTK_TREE_VIEW */
 209     p_intf->p_sys->p_tvfile = NULL;
 210     p_intf->p_sys->p_tvfile = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window,
 211                                                              "tvFileList");
 212     if (NULL == p_intf->p_sys->p_tvfile)
 213        msg_Err(p_intf, "Error obtaining pointer to File List");
 214
 215     /* Insert columns 0 */
 216     p_renderer = gtk_cell_renderer_text_new ();
 217     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 0, _("Filename"), p_renderer, NULL);
 218     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 0 );
 219     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 220     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 221     /* Insert columns 1 */
 222     p_renderer = gtk_cell_renderer_text_new ();
 223     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 1, _("Permissions"), p_renderer, NULL);
 224     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 1 );
 225     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 226     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 227     /* Insert columns 2 */
 228     p_renderer = gtk_cell_renderer_text_new ();
 229     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 2, _("Size"), p_renderer, NULL);
 230     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 2 );
 231     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 232     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 233     /* Insert columns 3 */
 234     p_renderer = gtk_cell_renderer_text_new ();
 235     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 3, _("Owner"), p_renderer, NULL);
 236     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 3 );
 237     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 3 );
 238     gtk_tree_view_column_set_sort_column_id(p_column, 3);
 239     /* Insert columns 4 */
 240     p_renderer = gtk_cell_renderer_text_new ();
 241     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 4, _("Group"), p_renderer, NULL);
 242     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 4 );
 243     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 4 );
 244     gtk_tree_view_column_set_sort_column_id(p_column, 4);
 245
 246     /* Get new directory listing */
 247     p_filelist = gtk_list_store_new (5,
 248                 G_TYPE_STRING, /* Filename */
 249                 G_TYPE_STRING, /* permissions */
 250                 G_TYPE_UINT64, /* File size */
 251                 G_TYPE_STRING, /* Owner */
 252                 G_TYPE_STRING);/* Group */
 253     ReadDirectory(p_intf, p_filelist, ".");
 254     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile), GTK_TREE_MODEL(p_filelist));
 255     g_object_unref(p_filelist);     /* Model will be released by GtkTreeView */
 256     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile)),GTK_SELECTION_MULTIPLE);
 257
 258     /* Column properties */
 259     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvfile, TRUE);
 260     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvfile);
 261     gtk_tree_view_set_headers_clickable(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile),TRUE);
 262     /* END OF FILEVIEW GTK_TREE_VIEW */
 263
 264     /* BEGIN OF PLAYLIST GTK_TREE_VIEW */
 265     p_intf->p_sys->p_tvplaylist = NULL;
 266     p_intf->p_sys->p_tvplaylist = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window, "tvPlaylist");
 267     if (NULL == p_intf->p_sys->p_tvplaylist)
 268        msg_Err(p_intf, "Error obtaining pointer to Play List");
 269
 270     /* Columns 1 */
 271     p_renderer = gtk_cell_renderer_text_new ();
 272     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 0, _("Filename"), p_renderer, NULL);
 273     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 0 );
 274     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 275     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 276     /* Column 2 */
 277     p_renderer = gtk_cell_renderer_text_new ();
 278     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 1, _("Time"), p_renderer, NULL);
 279     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 1 );
 280     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 281     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 282 #if 0
 283     /* Column 3 - is a hidden column used for reliable deleting items from the underlying playlist */
 284     p_renderer = gtk_cell_renderer_text_new ();
 285     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 2, _("Index"), p_renderer, NULL);
 286     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 2 );
 287     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 288     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 289 #endif
 290     /* update the playlist */
 291     p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 292     p_playlist_store = gtk_list_store_new (3,
 293                 G_TYPE_STRING, /* Filename */
 294                 G_TYPE_STRING, /* Time */
 295                 G_TYPE_UINT);  /* Hidden index */
 296     PlaylistRebuildListStore(p_playlist_store, p_playlist);
 297     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist), GTK_TREE_MODEL(p_playlist_store));
 298     g_object_unref(p_playlist_store);
 299     vlc_object_release(p_playlist); /* Free the playlist */
 300     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist)),GTK_SELECTION_MULTIPLE);
 301
 302     /* Column properties */
 303     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvplaylist, TRUE);
 304     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvplaylist);
 305     gtk_tree_view_set_headers_clickable(p_intf->p_sys->p_tvplaylist, TRUE);
 306     /* END OF PLAYLIST GTK_TREE_VIEW */
 307
 308     /* Hide the Preference TAB for now. */
 309     GtkWidget *p_preference_tab = NULL;
 310     p_preference_tab = gtk_notebook_get_nth_page(p_intf->p_sys->p_notebook,5);
 311     if (p_preference_tab != NULL)
 312       gtk_widget_hide(p_preference_tab);
 313
 314     /* Show the control window */
 315     gtk_widget_show( p_intf->p_sys->p_window );
 316
 317 #ifdef NEED_GTK2_MAIN
 318     msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
 319     while( !p_intf->b_die )
 320     {
 321         Manage( p_intf );
 322
 323         /* Sleep to avoid using all CPU - since some interfaces need to
 324          * access keyboard events, a 100ms delay is a good compromise */
 325         gdk_threads_leave();
 326         if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
 327             msleep( INTF_IDLE_SLEEP );
 328         else
 329             msleep( 1000 );
 330         gdk_threads_enter();
 331     }
 332 #else
 333     msg_Dbg( p_intf, "Manage GTK keyboard events using timeouts" );
 334     /* Sleep to avoid using all CPU - since some interfaces needs to access
 335      * keyboard events, a 1000ms delay is a good compromise */
 336     if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
 337         i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage, p_intf );
 338     else
 339         i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );
 340
 341     /* Enter Gtk mode */
 342     gtk_main();
 343     /* Remove the timeout */
 344     gtk_timeout_remove( i_dummy );
 345 #endif
 346
 347     gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
 348 #ifdef NEED_GTK2_MAIN
 349     gdk_threads_leave();
 350 #endif
 351 }
 352
 353 /*****************************************************************************
 354  * GtkAutoplayFile: Autoplay file depending on configuration settings
 355  *****************************************************************************/
 356 void GtkAutoPlayFile( vlc_object_t *p_this )
 357 {
 358     GtkWidget *cbautoplay;
 359     intf_thread_t *p_intf;
 360     int i_index;
 361     vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
 362                                         FIND_ANYWHERE );
 363
 364     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 365     {
 366         p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;
 367
 368         if( strcmp( MODULE_STRING, p_intf->p_module->psz_object_name ) )
 369         {
 370             continue;
 371         }
 372         cbautoplay = GTK_WIDGET( gtk_object_get_data(
 373                             GTK_OBJECT( p_intf->p_sys->p_window ),
 374                             "cbautoplay" ) );
 375
 376         if( !config_GetInt( p_this, "pda-autoplayfile" ) )
 377         {
 378             p_intf->p_sys->b_autoplayfile = VLC_FALSE;
 379         }
 380         else
 381         {
 382             p_intf->p_sys->b_autoplayfile = VLC_TRUE;
 383         }
 384         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
 385                                       p_intf->p_sys->b_autoplayfile );
 386     }
 387     vlc_list_release( p_list );
 388 }
 389
 390 /* following functions are local */
 391
 392 /*****************************************************************************
 393  * Manage: manage main thread messages
 394  *****************************************************************************
 395  * In this function, called approx. 10 times a second, we check what the
 396  * main program wanted to tell us.
 397  *****************************************************************************/
 398 static int Manage( intf_thread_t *p_intf )
 399 {
 400     GtkListStore *p_liststore;
 401     vlc_mutex_lock( &p_intf->change_lock );
 402
 403     /* Update the input */
 404     if( p_intf->p_sys->p_input == NULL )
 405     {
 406         p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 407                                                           FIND_ANYWHERE );
 408     }
 409     else if( p_intf->p_sys->p_input->b_dead )
 410     {
 411         vlc_object_release( p_intf->p_sys->p_input );
 412         p_intf->p_sys->p_input = NULL;
 413     }
 414
 415     if( p_intf->p_sys->p_input )
 416     {
 417         input_thread_t *p_input = p_intf->p_sys->p_input;
 418
 419         vlc_mutex_lock( &p_input->stream.stream_lock );
 420         if( !p_input->b_die )
 421         {
 422             /* New input or stream map change */
 423             if( p_input->stream.b_changed )
 424             {
 425                 playlist_t *p_playlist;
 426
 427                 E_(GtkModeManage)( p_intf );
 428                 p_intf->p_sys->b_playing = 1;
 429
 430                 /* update playlist interface */
 431                 p_playlist = (playlist_t *) vlc_object_find(
 432                         p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 433                 if (p_playlist != NULL)
 434                 {
 435                     p_liststore = gtk_list_store_new (3,
 436                                                G_TYPE_STRING,
 437                                                G_TYPE_STRING,
 438                                                G_TYPE_UINT);  /* Hidden index */
 439                     PlaylistRebuildListStore(p_liststore, p_playlist);
 440                     gtk_tree_view_set_model(p_intf->p_sys->p_tvplaylist, (GtkTreeModel*) p_liststore);
 441                     g_object_unref(p_liststore);
 442                     vlc_object_release( p_playlist );
 443                 }
 444             }
 445
 446             /* Manage the slider */
 447 #define p_area p_input->stream.p_selected_area
 448             if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
 449             {
 450                 /* Manage the slider for CPU_CAPABILITY_FPU hardware */
 451                 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
 452                 {
 453                     float newvalue = p_intf->p_sys->p_adj->value;
 454
 455                     /* If the user hasn't touched the slider since the last time,
 456                      * then the input can safely change it */
 457                     if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 458                     {
 459                         /* Update the value */
 460                         p_intf->p_sys->p_adj->value =
 461                         p_intf->p_sys->f_adj_oldvalue =
 462                             ( 100. * p_area->i_tell ) / p_area->i_size;
 463                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 464                                                  "value_changed" );
 465                     }
 466                     /* Otherwise, send message to the input if the user has
 467                      * finished dragging the slider */
 468                     else if( p_intf->p_sys->b_slider_free )
 469                     {
 470                         off_t i_seek = ( newvalue * p_area->i_size ) / 100;
 471
 472                         /* release the lock to be able to seek */
 473                         vlc_mutex_unlock( &p_input->stream.stream_lock );
 474                         input_Seek( p_input, i_seek, INPUT_SEEK_SET );
 475                         vlc_mutex_lock( &p_input->stream.stream_lock );
 476
 477                         /* Update the old value */
 478                         p_intf->p_sys->f_adj_oldvalue = newvalue;
 479                     }
 480                 }
 481             }
 482             else
 483             {
 484                 /* Manage the slider without CPU_CAPABILITY_FPU hardware */
 485                 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
 486                 {
 487                     off_t newvalue = p_intf->p_sys->p_adj->value;
 488
 489                     /* If the user hasn't touched the slider since the last time,
 490                      * then the input can safely change it */
 491                     if( newvalue == p_intf->p_sys->i_adj_oldvalue )
 492                     {
 493                         /* Update the value */
 494                         p_intf->p_sys->p_adj->value =
 495                         p_intf->p_sys->i_adj_oldvalue =
 496                             ( 100 * p_area->i_tell ) / p_area->i_size;
 497                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 498                                                  "value_changed" );
 499                     }
 500                     /* Otherwise, send message to the input if the user has
 501                      * finished dragging the slider */
 502                     else if( p_intf->p_sys->b_slider_free )
 503                     {
 504                         off_t i_seek = ( newvalue * p_area->i_size ) / 100;
 505
 506                         /* release the lock to be able to seek */
 507                         vlc_mutex_unlock( &p_input->stream.stream_lock );
 508                         input_Seek( p_input, i_seek, INPUT_SEEK_SET );
 509                         vlc_mutex_lock( &p_input->stream.stream_lock );
 510
 511                         /* Update the old value */
 512                         p_intf->p_sys->i_adj_oldvalue = newvalue;
 513                     }
 514                 }
 515             }
 516 #undef p_area
 517         }
 518         vlc_mutex_unlock( &p_input->stream.stream_lock );
 519     }
 520     else if( p_intf->p_sys->b_playing && !p_intf->b_die )
 521     {
 522         E_(GtkModeManage)( p_intf );
 523         p_intf->p_sys->b_playing = 0;
 524     }
 525
 526 #ifndef NEED_GTK2_MAIN
 527     if( p_intf->b_die )
 528     {
 529         vlc_mutex_unlock( &p_intf->change_lock );
 530
 531         /* Prepare to die, young Skywalker */
 532         gtk_main_quit();
 533
 534         return FALSE;
 535     }
 536 #endif
 537
 538     vlc_mutex_unlock( &p_intf->change_lock );
 539
 540     return TRUE;
 541 }
 542
 543 /*****************************************************************************
 544  * GtkDisplayDate: display stream date
 545  *****************************************************************************
 546  * This function displays the current date related to the position in
 547  * the stream. It is called whenever the slider changes its value.
 548  * The lock has to be taken before you call the function.
 549  *****************************************************************************/
 550 void E_(GtkDisplayDate)( GtkAdjustment *p_adj, gpointer userdata )
 551 {
 552     intf_thread_t *p_intf;
 553
 554     p_intf = (intf_thread_t*) userdata;
 555     if (p_intf == NULL)
 556         return;
 557
 558     if( p_intf->p_sys->p_input )
 559     {
 560 #define p_area p_intf->p_sys->p_input->stream.p_selected_area
 561         char psz_time[ MSTRTIME_MAX_SIZE ];
 562
 563         gtk_label_set_text( GTK_LABEL( p_intf->p_sys->p_slider_label ),
 564                         input_OffsetToTime( p_intf->p_sys->p_input, psz_time,
 565                                    ( p_area->i_size * p_adj->value ) / 100 ) );
 566 #undef p_area
 567      }
 568 }
 569
 570 /*****************************************************************************
 571  * GtkModeManage: actualize the aspect of the interface whenever the input
 572  *                changes.
 573  *****************************************************************************
 574  * The lock has to be taken before you call the function.
 575  *****************************************************************************/
 576 gint E_(GtkModeManage)( intf_thread_t * p_intf )
 577 {
 578     GtkWidget *     p_slider = NULL;
 579     vlc_bool_t      b_control;
 580
 581     if ( p_intf->p_sys->p_window == NULL )
 582         msg_Err( p_intf, "Main widget not found" );
 583
 584     p_slider = lookup_widget( p_intf->p_sys->p_window, "timeSlider");
 585     if (p_slider == NULL)
 586         msg_Err( p_intf, "Slider widget not found" );
 587
 588     /* controls unavailable */
 589     b_control = 0;
 590
 591     /* show the box related to current input mode */
 592     if( p_intf->p_sys->p_input )
 593     {
 594         /* initialize and show slider for seekable streams */
 595         if( p_intf->p_sys->p_input->stream.b_seekable )
 596         {
 597             gtk_widget_show( GTK_WIDGET( p_slider ) );
 598         }
 599         else
 600         {
 601             /* hide slider */
 602             gtk_widget_hide( GTK_WIDGET( p_slider ) );
 603         }
 604
 605         /* control buttons for free pace streams */
 606         b_control = p_intf->p_sys->p_input->stream.b_pace_control;
 607
 608         p_intf->p_sys->p_input->stream.b_changed = 0;
 609         msg_Dbg( p_intf, "stream has changed, refreshing interface" );
 610     }
 611
 612     /* set control items */
 613     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbRewind"), b_control );
 614     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbPause"), b_control );
 615     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbForward"), b_control );
 616     return TRUE;
 617 }
 618