1 /*****************************************************************************
2 * pda.c : PDA Gtk2 plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
5 * $Id: pda.c,v 1.22 2004/02/29 22:59:59 jpsaman Exp $
7 * Authors: Jean-Paul Saman <jpsaman@wxs.nl>
8 * Marc Ariberti <marcari@videolan.org>
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.
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.
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 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
28 #include <stdlib.h> /* malloc(), free() */
29 #include <errno.h> /* ENOMEM */
30 #include <string.h> /* strerror() */
38 #include "pda_callbacks.h"
39 #include "pda_interface.h"
40 #include "pda_support.h"
43 /*****************************************************************************
45 *****************************************************************************/
46 static int Open ( vlc_object_t * );
47 static void Close ( vlc_object_t * );
48 static void Run ( intf_thread_t * );
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 );
55 /*****************************************************************************
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")
62 /*****************************************************************************
64 *****************************************************************************/
66 set_description( N_("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" );
73 /*****************************************************************************
74 * Open: initialize and create window
75 *****************************************************************************/
76 static int Open( vlc_object_t *p_this )
78 intf_thread_t *p_intf = (intf_thread_t *)p_this;
80 /* Allocate instance and initialize some members */
81 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
82 if( p_intf->p_sys == NULL )
84 msg_Err( p_intf, "out of memory" );
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 )
93 free( p_intf->p_sys );
98 /* Initialize Gtk+ thread */
99 p_intf->p_sys->p_input = NULL;
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;
105 p_intf->pf_run = Run;
110 /*****************************************************************************
111 * Close: destroy interface window
112 *****************************************************************************/
113 static void Close( vlc_object_t *p_this )
115 intf_thread_t *p_intf = (intf_thread_t *)p_this;
117 if( p_intf->p_sys->p_input )
119 vlc_object_release( p_intf->p_sys->p_input );
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 );
127 /* Destroy structure */
128 free( p_intf->p_sys );
131 /*****************************************************************************
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 )
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;
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;
153 #ifndef NEED_GTK2_MAIN
155 msg_Dbg( p_intf, "Starting pda GTK2+ interface" );
156 gtk_init( &i_args, &pp_args );
158 /* Initialize Gtk+ */
159 msg_Dbg( p_intf, "Starting pda GTK2+ interface thread" );
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");
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");
173 p_intf->p_sys->p_window = create_pda();
174 if (p_intf->p_sys->p_window == NULL)
176 msg_Err( p_intf, "unable to create pda interface" );
179 /* Store p_intf to keep an eye on it */
180 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
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)");
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" ) );
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." );
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;
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,
212 if (NULL == p_intf->p_sys->p_tvfile)
213 msg_Err(p_intf, "Error obtaining pointer to File List");
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, (gchar *) N_("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, (gchar *) N_("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, (gchar *) N_("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, (gchar *) N_("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, (gchar *) N_("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);
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);
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 */
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");
271 p_renderer = gtk_cell_renderer_text_new ();
272 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 0, (gchar *) N_("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);
277 p_renderer = gtk_cell_renderer_text_new ();
278 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 1, (gchar *) N_("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);
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, (gchar *) N_("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);
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);
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 */
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);
314 /* Show the control window */
315 gtk_widget_show( p_intf->p_sys->p_window );
317 #ifdef NEED_GTK2_MAIN
318 msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
319 while( !p_intf->b_die )
323 /* Sleep to avoid using all CPU - since some interfaces need to
324 * access keyboard events, a 100ms delay is a good compromise */
326 if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
327 msleep( INTF_IDLE_SLEEP );
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 );
339 i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );
343 /* Remove the timeout */
344 gtk_timeout_remove( i_dummy );
347 gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
348 #ifdef NEED_GTK2_MAIN
353 /*****************************************************************************
354 * GtkAutoplayFile: Autoplay file depending on configuration settings
355 *****************************************************************************/
356 void GtkAutoPlayFile( vlc_object_t *p_this )
358 GtkWidget *cbautoplay;
359 intf_thread_t *p_intf;
361 vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
364 for( i_index = 0; i_index < p_list->i_count; i_index++ )
366 p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;
368 if( strcmp( MODULE_STRING, p_intf->p_module->psz_object_name ) )
372 cbautoplay = GTK_WIDGET( gtk_object_get_data(
373 GTK_OBJECT( p_intf->p_sys->p_window ),
376 if( !config_GetInt( p_this, "pda-autoplayfile" ) )
378 p_intf->p_sys->b_autoplayfile = VLC_FALSE;
382 p_intf->p_sys->b_autoplayfile = VLC_TRUE;
384 gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
385 p_intf->p_sys->b_autoplayfile );
387 vlc_list_release( p_list );
390 /* following functions are local */
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 )
400 GtkListStore *p_liststore;
401 vlc_mutex_lock( &p_intf->change_lock );
403 /* Update the input */
404 if( p_intf->p_sys->p_input == NULL )
406 p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
409 else if( p_intf->p_sys->p_input->b_dead )
411 vlc_object_release( p_intf->p_sys->p_input );
412 p_intf->p_sys->p_input = NULL;
415 if( p_intf->p_sys->p_input )
417 input_thread_t *p_input = p_intf->p_sys->p_input;
419 vlc_mutex_lock( &p_input->stream.stream_lock );
420 if( !p_input->b_die )
422 /* New input or stream map change */
423 if( p_input->stream.b_changed )
425 playlist_t *p_playlist;
427 E_(GtkModeManage)( p_intf );
428 p_intf->p_sys->b_playing = 1;
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)
435 p_liststore = gtk_list_store_new (3,
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 );
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)
450 /* Manage the slider for CPU_CAPABILITY_FPU hardware */
451 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
453 float newvalue = p_intf->p_sys->p_adj->value;
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 )
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 ),
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 )
470 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
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 );
477 /* Update the old value */
478 p_intf->p_sys->f_adj_oldvalue = newvalue;
484 /* Manage the slider without CPU_CAPABILITY_FPU hardware */
485 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
487 off_t newvalue = p_intf->p_sys->p_adj->value;
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 )
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 ),
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 )
504 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
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 );
511 /* Update the old value */
512 p_intf->p_sys->i_adj_oldvalue = newvalue;
518 vlc_mutex_unlock( &p_input->stream.stream_lock );
520 else if( p_intf->p_sys->b_playing && !p_intf->b_die )
522 E_(GtkModeManage)( p_intf );
523 p_intf->p_sys->b_playing = 0;
526 #ifndef NEED_GTK2_MAIN
529 vlc_mutex_unlock( &p_intf->change_lock );
531 /* Prepare to die, young Skywalker */
538 vlc_mutex_unlock( &p_intf->change_lock );
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 )
552 intf_thread_t *p_intf;
554 p_intf = (intf_thread_t*) userdata;
558 if( p_intf->p_sys->p_input )
560 #define p_area p_intf->p_sys->p_input->stream.p_selected_area
561 char psz_time[ MSTRTIME_MAX_SIZE ];
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 ) );
570 /*****************************************************************************
571 * GtkModeManage: actualize the aspect of the interface whenever the input
573 *****************************************************************************
574 * The lock has to be taken before you call the function.
575 *****************************************************************************/
576 gint E_(GtkModeManage)( intf_thread_t * p_intf )
578 GtkWidget * p_slider = NULL;
579 vlc_bool_t b_control;
581 if ( p_intf->p_sys->p_window == NULL )
582 msg_Err( p_intf, "Main widget not found" );
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" );
588 /* controls unavailable */
591 /* show the box related to current input mode */
592 if( p_intf->p_sys->p_input )
594 /* initialize and show slider for seekable streams */
595 if( p_intf->p_sys->p_input->stream.b_seekable )
597 gtk_widget_show( GTK_WIDGET( p_slider ) );
602 gtk_widget_hide( GTK_WIDGET( p_slider ) );
605 /* control buttons for free pace streams */
606 b_control = p_intf->p_sys->p_input->stream.b_pace_control;
608 p_intf->p_sys->p_input->stream.b_changed = 0;
609 msg_Dbg( p_intf, "stream has changed, refreshing interface" );
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 );