1 /*****************************************************************************
2 * pda.c : PDA Gtk2 plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
5 * $Id: pda.c,v 1.9 2003/11/18 20:36:40 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 );
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 add_category_hint( N_("Miscellaneous"), NULL, VLC_TRUE );
67 // add_bool( "pda-autoplayfile", 1, GtkAutoPlayFile, AUTOPLAYFILE_TEXT, AUTOPLAYFILE_LONGTEXT, VLC_TRUE );
68 set_description( _("PDA Linux Gtk2+ interface") );
69 set_capability( "interface", 70 );
70 set_callbacks( Open, Close );
71 add_shortcut( "pda" );
74 /*****************************************************************************
75 * Open: initialize and create window
76 *****************************************************************************/
77 static int Open( vlc_object_t *p_this )
79 intf_thread_t *p_intf = (intf_thread_t *)p_this;
81 /* Allocate instance and initialize some members */
82 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
83 if( p_intf->p_sys == NULL )
85 msg_Err( p_intf, "out of memory" );
90 msg_Dbg( p_intf, "Using gui-helper" );
91 p_intf->p_sys->p_gtk_main = module_Need( p_this, "gui-helper", "gtk2" );
92 if( p_intf->p_sys->p_gtk_main == NULL )
94 free( p_intf->p_sys );
99 /* Initialize Gtk+ thread */
100 p_intf->p_sys->p_input = NULL;
102 p_intf->p_sys->b_autoplayfile = 1;
103 p_intf->p_sys->b_playing = 0;
104 p_intf->p_sys->b_slider_free = 1;
106 p_intf->pf_run = Run;
111 /*****************************************************************************
112 * Close: destroy interface window
113 *****************************************************************************/
114 static void Close( vlc_object_t *p_this )
116 intf_thread_t *p_intf = (intf_thread_t *)p_this;
118 if( p_intf->p_sys->p_input )
120 vlc_object_release( p_intf->p_sys->p_input );
123 #ifdef NEED_GTK2_MAIN
124 msg_Dbg( p_intf, "Releasing gui-helper" );
125 module_Unneed( p_intf, p_intf->p_sys->p_gtk_main );
128 /* Destroy structure */
129 free( p_intf->p_sys );
132 /*****************************************************************************
134 *****************************************************************************
135 * this part of the interface is in a separate thread so that we can call
136 * gtk_main() from within it without annoying the rest of the program.
137 *****************************************************************************/
138 static void Run( intf_thread_t *p_intf )
140 #ifndef NEED_GTK2_MAIN
141 /* gtk_init needs to know the command line. We don't care, so we
142 * give it an empty one */
143 char *p_args[] = { "", NULL };
144 char **pp_args = p_args;
148 GtkCellRenderer *renderer = NULL;
149 GtkTreeViewColumn *column = NULL;
150 GtkListStore *filelist = NULL;
151 GtkListStore *playlist = 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 */
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");
171 /* Path for pixmaps under linupy 2.0 */
172 add_pixmap_directory("/usr/share/pixmaps/vlc");
174 p_intf->p_sys->p_window = create_pda();
175 if (p_intf->p_sys->p_window == NULL)
177 msg_Err( p_intf, "unable to create pda interface" );
180 /* Set the title of the main window */
181 gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
182 VOUT_TITLE " (PDA Linux interface)");
184 /* Get the notebook object */
185 p_intf->p_sys->p_notebook = GTK_NOTEBOOK( gtk_object_get_data(
186 GTK_OBJECT( p_intf->p_sys->p_window ), "notebook" ) );
188 /* Get the slider object */
189 p_intf->p_sys->p_slider = GTK_HSCALE( gtk_object_get_data(
190 GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) );
191 p_intf->p_sys->p_slider_label = GTK_LABEL( gtk_object_get_data(
192 GTK_OBJECT( p_intf->p_sys->p_window ), "slider_label" ) );
195 /* Connect the date display to the slider */
196 msg_Dbg( p_intf, "setting slider adjustment ... " );
197 #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
198 GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
199 p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
201 gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
202 GTK_SIGNAL_FUNC( E_(GtkDisplayDate) ), NULL );
203 p_intf->p_sys->f_adj_oldvalue = 0;
204 p_intf->p_sys->i_adj_oldvalue = 0;
206 msg_Dbg( p_intf, "setting slider adjustment ... done" );
209 /* BEGIN OF FILEVIEW GTK_TREE_VIEW */
210 msg_Dbg(p_intf, "Getting GtkTreeView FileList" );
211 p_intf->p_sys->p_tvfile = NULL;
212 p_intf->p_sys->p_tvfile = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window,
214 if (NULL == p_intf->p_sys->p_tvfile)
215 msg_Err(p_intf, "Error obtaining pointer to File List");
217 /* Insert columns 0 */
218 renderer = gtk_cell_renderer_text_new ();
219 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 0, _("Filename"), renderer, NULL);
220 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 0 );
221 gtk_tree_view_column_add_attribute(column, renderer, "text", 0 );
222 gtk_tree_view_column_set_sort_column_id(column, 0);
223 /* Insert columns 1 */
224 renderer = gtk_cell_renderer_text_new ();
225 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 1, _("Permissions"), renderer, NULL);
226 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 1 );
227 gtk_tree_view_column_add_attribute(column, renderer, "text", 1 );
228 gtk_tree_view_column_set_sort_column_id(column, 1);
229 /* Insert columns 2 */
230 renderer = gtk_cell_renderer_text_new ();
231 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 2, _("Size"), renderer, NULL);
232 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 2 );
233 gtk_tree_view_column_add_attribute(column, renderer, "text", 2 );
234 gtk_tree_view_column_set_sort_column_id(column, 2);
235 /* Insert columns 3 */
236 renderer = gtk_cell_renderer_text_new ();
237 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 3, _("Owner"), renderer, NULL);
238 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 3 );
239 gtk_tree_view_column_add_attribute(column, renderer, "text", 3 );
240 gtk_tree_view_column_set_sort_column_id(column, 3);
241 /* Insert columns 4 */
242 renderer = gtk_cell_renderer_text_new ();
243 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 4, _("Group"), renderer, NULL);
244 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 4 );
245 gtk_tree_view_column_add_attribute(column, renderer, "text", 4 );
246 gtk_tree_view_column_set_sort_column_id(column, 4);
248 /* Get new directory listing */
249 msg_Dbg(p_intf, "Populating GtkTreeView FileList" );
250 filelist = gtk_list_store_new (5,
251 G_TYPE_STRING, /* Filename */
252 G_TYPE_STRING, /* permissions */
253 G_TYPE_UINT64, /* File size */
254 G_TYPE_STRING, /* Owner */
255 G_TYPE_STRING);/* Group */
256 ReadDirectory(p_intf, filelist, ".");
257 msg_Dbg(p_intf, "Showing GtkTreeView FileList" );
258 gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile), GTK_TREE_MODEL(filelist));
259 g_object_unref(filelist); /* Model will be released by GtkTreeView */
260 gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile)),GTK_SELECTION_MULTIPLE);
262 /* Column properties */
263 gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvfile, TRUE);
264 gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvfile);
265 gtk_tree_view_set_headers_clickable(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile),TRUE);
266 /* END OF FILEVIEW GTK_TREE_VIEW */
268 /* BEGIN OF PLAYLIST GTK_TREE_VIEW */
269 msg_Dbg(p_intf, "Getting GtkTreeView PlayList" );
270 p_intf->p_sys->p_tvplaylist = NULL;
271 p_intf->p_sys->p_tvplaylist = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window, "tvPlaylist");
272 if (NULL == p_intf->p_sys->p_tvplaylist)
273 msg_Err(p_intf, "Error obtaining pointer to Play List");
276 renderer = gtk_cell_renderer_text_new ();
277 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 0, _("Filename"), renderer, NULL);
278 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 0 );
279 gtk_tree_view_column_add_attribute(column, renderer, "text", 0 );
280 gtk_tree_view_column_set_sort_column_id(column, 0);
282 renderer = gtk_cell_renderer_text_new ();
283 gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 1, _("Time"), renderer, NULL);
284 column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 1 );
285 gtk_tree_view_column_add_attribute(column, renderer, "text", 1 );
286 gtk_tree_view_column_set_sort_column_id(column, 1);
288 /* update the playlist */
289 msg_Dbg(p_intf, "Populating GtkTreeView Playlist" );
290 playlist = gtk_list_store_new (2,
291 G_TYPE_STRING, /* Filename */
292 G_TYPE_STRING);/* Time */
293 PlaylistRebuildListStore( playlist, vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE ));
294 msg_Dbg(p_intf, "Showing GtkTreeView Playlist" );
295 gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist), GTK_TREE_MODEL(playlist));
296 g_object_unref(playlist);
297 gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist)),GTK_SELECTION_MULTIPLE);
299 /* Column properties */
300 gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvplaylist, TRUE);
301 gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvplaylist);
302 gtk_tree_view_set_headers_clickable(p_intf->p_sys->p_tvplaylist, TRUE);
303 /* END OF PLAYLIST GTK_TREE_VIEW */
305 /* Store p_intf to keep an eye on it */
306 msg_Dbg( p_intf, "trying to store p_intf pointer ... " );
307 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
309 msg_Dbg( p_intf, "trying to store p_intf pointer ... done" );
311 /* Show the control window */
312 gtk_widget_show( p_intf->p_sys->p_window );
314 #ifdef NEED_GTK2_MAIN
315 msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
316 while( !p_intf->b_die )
320 /* Sleep to avoid using all CPU - since some interfaces need to
321 * access keyboard events, a 100ms delay is a good compromise */
323 if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
324 msleep( INTF_IDLE_SLEEP );
330 msg_Dbg( p_intf, "Manage GTK keyboard events using timeouts" );
331 /* Sleep to avoid using all CPU - since some interfaces needs to access
332 * keyboard events, a 1000ms delay is a good compromise */
333 if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
334 i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage, p_intf );
336 i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );
340 /* Remove the timeout */
341 gtk_timeout_remove( i_dummy );
344 gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
345 #ifdef NEED_GTK2_MAIN
350 /*****************************************************************************
351 * GtkAutoplayFile: Autoplay file depending on configuration settings
352 *****************************************************************************/
353 void GtkAutoPlayFile( vlc_object_t *p_this )
355 GtkWidget *cbautoplay;
356 intf_thread_t *p_intf;
358 vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
361 for( i_index = 0; i_index < p_list->i_count; i_index++ )
363 p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;
365 if( strcmp( MODULE_STRING, p_intf->p_module->psz_object_name ) )
369 cbautoplay = GTK_WIDGET( gtk_object_get_data(
370 GTK_OBJECT( p_intf->p_sys->p_window ),
373 if( !config_GetInt( p_this, "pda-autoplayfile" ) )
375 p_intf->p_sys->b_autoplayfile = VLC_FALSE;
379 p_intf->p_sys->b_autoplayfile = VLC_TRUE;
381 gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
382 p_intf->p_sys->b_autoplayfile );
384 vlc_list_release( p_list );
387 /* following functions are local */
389 /*****************************************************************************
390 * Manage: manage main thread messages
391 *****************************************************************************
392 * In this function, called approx. 10 times a second, we check what the
393 * main program wanted to tell us.
394 *****************************************************************************/
395 static int Manage( intf_thread_t *p_intf )
397 GtkListStore *p_liststore;
398 vlc_mutex_lock( &p_intf->change_lock );
400 /* Update the input */
401 if( p_intf->p_sys->p_input == NULL )
403 p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
406 else if( p_intf->p_sys->p_input->b_dead )
408 vlc_object_release( p_intf->p_sys->p_input );
409 p_intf->p_sys->p_input = NULL;
412 if( p_intf->p_sys->p_input )
414 input_thread_t *p_input = p_intf->p_sys->p_input;
416 vlc_mutex_lock( &p_input->stream.stream_lock );
417 if( !p_input->b_die )
419 /* New input or stream map change */
420 if( p_input->stream.b_changed )
422 playlist_t *p_playlist;
424 E_(GtkModeManage)( p_intf );
425 p_intf->p_sys->b_playing = 1;
427 /* update playlist interface */
428 p_playlist = (playlist_t *) vlc_object_find(
429 p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
430 if (p_playlist != NULL)
432 msg_Dbg(p_intf, "Manage: Populating GtkTreeView Playlist" );
433 p_liststore = gtk_list_store_new (2,
436 PlaylistRebuildListStore(p_liststore, p_playlist);
437 msg_Dbg(p_intf, "Manage: Updating GtkTreeView Playlist" );
438 gtk_tree_view_set_model(p_intf->p_sys->p_tvplaylist, (GtkTreeModel*) p_liststore);
442 /* Manage the slider */
443 if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
445 /* Manage the slider for CPU_CAPABILITY_FPU hardware */
446 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
448 float newvalue = p_intf->p_sys->p_adj->value;
450 #define p_area p_input->stream.p_selected_area
451 /* If the user hasn't touched the slider since the last time,
452 * then the input can safely change it */
453 if( newvalue == p_intf->p_sys->f_adj_oldvalue )
455 /* Update the value */
456 p_intf->p_sys->p_adj->value =
457 p_intf->p_sys->f_adj_oldvalue =
458 ( 100. * p_area->i_tell ) / p_area->i_size;
459 gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
462 /* Otherwise, send message to the input if the user has
463 * finished dragging the slider */
464 else if( p_intf->p_sys->b_slider_free )
466 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
468 /* release the lock to be able to seek */
469 vlc_mutex_unlock( &p_input->stream.stream_lock );
470 input_Seek( p_input, i_seek, INPUT_SEEK_SET );
471 vlc_mutex_lock( &p_input->stream.stream_lock );
473 /* Update the old value */
474 p_intf->p_sys->f_adj_oldvalue = newvalue;
481 /* Manage the slider without CPU_CAPABILITY_FPU hardware */
482 if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
484 off_t newvalue = p_intf->p_sys->p_adj->value;
486 #define p_area p_input->stream.p_selected_area
487 /* If the user hasn't touched the slider since the last time,
488 * then the input can safely change it */
489 if( newvalue == p_intf->p_sys->i_adj_oldvalue )
491 /* Update the value */
492 p_intf->p_sys->p_adj->value =
493 p_intf->p_sys->i_adj_oldvalue =
494 ( 100 * p_area->i_tell ) / p_area->i_size;
495 gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
498 /* Otherwise, send message to the input if the user has
499 * finished dragging the slider */
500 else if( p_intf->p_sys->b_slider_free )
502 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
504 /* release the lock to be able to seek */
505 vlc_mutex_unlock( &p_input->stream.stream_lock );
506 input_Seek( p_input, i_seek, INPUT_SEEK_SET );
507 vlc_mutex_lock( &p_input->stream.stream_lock );
509 /* Update the old value */
510 p_intf->p_sys->i_adj_oldvalue = newvalue;
516 vlc_mutex_unlock( &p_input->stream.stream_lock );
518 else if( p_intf->p_sys->b_playing && !p_intf->b_die )
520 E_(GtkModeManage)( p_intf );
521 p_intf->p_sys->b_playing = 0;
524 #ifndef NEED_GTK2_MAIN
527 vlc_mutex_unlock( &p_intf->change_lock );
529 /* Prepare to die, young Skywalker */
536 vlc_mutex_unlock( &p_intf->change_lock );
541 /*****************************************************************************
542 * GtkDisplayDate: display stream date
543 *****************************************************************************
544 * This function displays the current date related to the position in
545 * the stream. It is called whenever the slider changes its value.
546 * The lock has to be taken before you call the function.
547 *****************************************************************************/
548 void E_(GtkDisplayDate)( GtkAdjustment *p_adj )
550 intf_thread_t *p_intf;
552 p_intf = gtk_object_get_data( GTK_OBJECT( p_adj ), "p_intf" );
554 if( p_intf->p_sys->p_input )
556 #define p_area p_intf->p_sys->p_input->stream.p_selected_area
557 char psz_time[ OFFSETTOTIME_MAX_SIZE ];
559 gtk_label_set_text( GTK_LABEL( p_intf->p_sys->p_slider_label ),
560 input_OffsetToTime( p_intf->p_sys->p_input, psz_time,
561 ( p_area->i_size * p_adj->value ) / 100 ) );
566 /*****************************************************************************
567 * GtkModeManage: actualize the aspect of the interface whenever the input
569 *****************************************************************************
570 * The lock has to be taken before you call the function.
571 *****************************************************************************/
572 gint E_(GtkModeManage)( intf_thread_t * p_intf )
574 GtkWidget * p_slider;
575 vlc_bool_t b_control;
577 #define GETWIDGET( ptr, name ) GTK_WIDGET( gtk_object_get_data( GTK_OBJECT( \
578 p_intf->p_sys->ptr ) , ( name ) ) )
580 p_slider = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
581 p_intf->p_sys->p_window ), "slider" ) );
582 gtk_widget_hide( GTK_WIDGET( p_slider ) );
584 /* controls unavailable */
587 /* show the box related to current input mode */
588 if( p_intf->p_sys->p_input )
590 /* initialize and show slider for seekable streams */
591 if( p_intf->p_sys->p_input->stream.b_seekable )
593 if (p_intf->p_libvlc->i_cpu & CPU_CAPABILITY_FPU)
594 p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue = 0;
596 p_intf->p_sys->p_adj->value = p_intf->p_sys->i_adj_oldvalue = 0;
597 gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
599 gtk_widget_show( GTK_WIDGET( p_slider ) );
602 /* control buttons for free pace streams */
603 b_control = p_intf->p_sys->p_input->stream.b_pace_control;
605 p_intf->p_sys->p_input->stream.b_changed = 0;
606 msg_Dbg( p_intf, "stream has changed, refreshing interface" );
609 /* set control items */
610 gtk_widget_set_sensitive( GETWIDGET(p_window, "tbRewind"), b_control );
611 gtk_widget_set_sensitive( GETWIDGET(p_window, "tbPause"), b_control );
612 gtk_widget_set_sensitive( GETWIDGET(p_window, "tbForward"), b_control );