1 /*****************************************************************************
2 * gtk.c : Gtk+ plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000-2001 VideoLAN
5 * $Id: gtk.c,v 1.15 2002/03/25 02:06:24 jobi Exp $
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
28 #include <errno.h> /* ENOMEM */
29 #include <string.h> /* strerror() */
32 #include <videolan/vlc.h>
36 #include "stream_control.h"
37 #include "input_ext-intf.h"
39 #include "interface.h"
40 #include "intf_playlist.h"
43 #include "video_output.h"
45 #include "gtk_callbacks.h"
46 #include "gtk_interface.h"
47 #include "gtk_support.h"
49 #include "gtk_display.h"
50 #include "gtk_common.h"
52 /*****************************************************************************
54 *****************************************************************************/
55 static void intf_getfunctions ( function_list_t * p_function_list );
56 static int intf_Open ( intf_thread_t *p_intf );
57 static void intf_Close ( intf_thread_t *p_intf );
58 static void intf_Run ( intf_thread_t *p_intf );
60 static gint GtkManage ( gpointer p_data );
62 /*****************************************************************************
63 * Building configuration tree
64 *****************************************************************************/
69 SET_DESCRIPTION( "Gtk+ interface module" )
71 if( getenv( "DISPLAY" ) == NULL )
73 ADD_CAPABILITY( INTF, 10 )
78 ADD_CAPABILITY( INTF, 90 )
85 intf_getfunctions( &p_module->p_functions->intf );
88 MODULE_DEACTIVATE_START
89 MODULE_DEACTIVATE_STOP
91 /*****************************************************************************
92 * g_atexit: kludge to avoid the Gtk+ thread to segfault at exit
93 *****************************************************************************
94 * gtk_init() makes several calls to g_atexit() which calls atexit() to
95 * register tidying callbacks to be called at program exit. Since the Gtk+
96 * plugin is likely to be unloaded at program exit, we have to export this
97 * symbol to intercept the g_atexit() calls. Talk about crude hack.
98 *****************************************************************************/
99 void g_atexit( GVoidFunc func )
101 intf_thread_t *p_intf = p_main->p_intf;
105 i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
111 if( i_dummy >= MAX_ATEXIT - 1 )
113 intf_ErrMsg( "intf error: too many atexit() callbacks to register" );
117 p_intf->p_sys->pf_callback[i_dummy] = func;
118 p_intf->p_sys->pf_callback[i_dummy + 1] = NULL;
121 /*****************************************************************************
122 * Functions exported as capabilities. They are declared as static so that
123 * we don't pollute the namespace too much.
124 *****************************************************************************/
125 static void intf_getfunctions( function_list_t * p_function_list )
127 p_function_list->functions.intf.pf_open = intf_Open;
128 p_function_list->functions.intf.pf_close = intf_Close;
129 p_function_list->functions.intf.pf_run = intf_Run;
132 /*****************************************************************************
133 * intf_Open: initialize and create window
134 *****************************************************************************/
135 static int intf_Open( intf_thread_t *p_intf )
137 /* Allocate instance and initialize some members */
138 p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
139 if( p_intf->p_sys == NULL )
141 intf_ErrMsg("error: %s", strerror(ENOMEM));
145 p_intf->p_sys->p_sub = intf_MsgSub();
147 /* Initialize Gtk+ thread */
148 p_intf->p_sys->b_playing = 0;
149 p_intf->p_sys->b_popup_changed = 0;
150 p_intf->p_sys->b_window_changed = 0;
151 p_intf->p_sys->b_playlist_changed = 0;
153 p_intf->p_sys->i_playing = -1;
154 p_intf->p_sys->b_slider_free = 1;
156 p_intf->p_sys->pf_callback[0] = NULL;
161 /*****************************************************************************
162 * intf_Close: destroy interface window
163 *****************************************************************************/
164 static void intf_Close( intf_thread_t *p_intf )
166 intf_MsgUnsub( p_intf->p_sys->p_sub );
168 /* Destroy structure */
169 free( p_intf->p_sys );
172 /*****************************************************************************
173 * intf_Run: Gtk+ thread
174 *****************************************************************************
175 * this part of the interface is in a separate thread so that we can call
176 * gtk_main() from within it without annoying the rest of the program.
177 * XXX: the approach may look kludgy, and probably is, but I could not find
178 * a better way to dynamically load a Gtk+ interface at runtime.
179 *****************************************************************************/
180 static void intf_Run( intf_thread_t *p_intf )
182 /* gtk_init needs to know the command line. We don't care, so we
183 * give it an empty one */
184 char *p_args[] = { "" };
185 char **pp_args = p_args;
189 /* The data types we are allowed to receive */
190 static GtkTargetEntry target_table[] =
192 { "STRING", 0, DROP_ACCEPT_STRING },
193 { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
194 { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
197 /* Initialize Gtk+ */
198 gtk_init( &i_args, &pp_args );
200 /* Create some useful widgets that will certainly be used */
201 p_intf->p_sys->p_window = create_intf_window( );
202 p_intf->p_sys->p_popup = create_intf_popup( );
203 p_intf->p_sys->p_playlist = create_intf_playlist();
204 p_intf->p_sys->p_messages = create_intf_messages();
206 /* Set the title of the main window */
207 gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
208 VOUT_TITLE " (Gtk+ interface)");
210 /* Accept file drops on the main window */
211 gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
212 GTK_DEST_DEFAULT_ALL, target_table,
213 1, GDK_ACTION_COPY );
215 /* Accept file drops on the playlist window */
216 gtk_drag_dest_set( GTK_WIDGET( lookup_widget( p_intf->p_sys->p_playlist,
218 GTK_DEST_DEFAULT_ALL, target_table,
219 1, GDK_ACTION_COPY );
221 /* Get the slider object */
222 p_intf->p_sys->p_slider_frame = GTK_FRAME( gtk_object_get_data(
223 GTK_OBJECT( p_intf->p_sys->p_window ), "slider_frame" ) );
225 /* Configure the log window */
226 p_intf->p_sys->p_messages_text = GTK_TEXT( gtk_object_get_data(
227 GTK_OBJECT(p_intf->p_sys->p_messages ), "messages_textbox" ) );
228 gtk_text_set_line_wrap( p_intf->p_sys->p_messages_text, TRUE);
229 gtk_text_set_word_wrap( p_intf->p_sys->p_messages_text, FALSE);
231 /* Get the interface labels */
232 #define P_LABEL( name ) GTK_LABEL( gtk_object_get_data( \
233 GTK_OBJECT( p_intf->p_sys->p_window ), name ) )
234 p_intf->p_sys->p_label_title = P_LABEL( "title_label" );
235 p_intf->p_sys->p_label_chapter = P_LABEL( "chapter_label" );
238 /* Connect the date display to the slider */
239 #define P_SLIDER GTK_RANGE( gtk_object_get_data( \
240 GTK_OBJECT( p_intf->p_sys->p_window ), "slider" ) )
241 p_intf->p_sys->p_adj = gtk_range_get_adjustment( P_SLIDER );
243 gtk_signal_connect ( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
244 GTK_SIGNAL_FUNC( GtkDisplayDate ), NULL );
245 p_intf->p_sys->f_adj_oldvalue = 0;
248 /* We don't create these ones yet because we perhaps won't need them */
249 p_intf->p_sys->p_about = NULL;
250 p_intf->p_sys->p_modules = NULL;
251 p_intf->p_sys->p_fileopen = NULL;
252 p_intf->p_sys->p_disc = NULL;
253 p_intf->p_sys->p_sat = NULL;
254 p_intf->p_sys->p_network = NULL;
255 p_intf->p_sys->p_jump = NULL;
257 /* Store p_intf to keep an eye on it */
258 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
261 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
264 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_playlist ),
267 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_messages ),
270 gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_adj),
273 /* Show the control window */
274 gtk_widget_show( p_intf->p_sys->p_window );
276 /* Sleep to avoid using all CPU - since some interfaces needs to access
277 * keyboard events, a 100ms delay is a good compromise */
278 i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GtkManage, p_intf );
283 /* Remove the timeout */
284 gtk_timeout_remove( i_dummy );
286 /* Launch stored callbacks */
288 i_dummy < MAX_ATEXIT && p_intf->p_sys->pf_callback[i_dummy] != NULL;
291 p_intf->p_sys->pf_callback[i_dummy]();
295 /* following functions are local */
297 /*****************************************************************************
298 * GtkManage: manage main thread messages
299 *****************************************************************************
300 * In this function, called approx. 10 times a second, we check what the
301 * main program wanted to tell us.
302 *****************************************************************************/
303 static gint GtkManage( gpointer p_data )
305 #define p_intf ((intf_thread_t *)p_data)
306 static GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
307 static GdkColor red = { 0, 0xffff, 0x6666, 0x6666 };
308 static GdkColor gray = { 0, 0xaaaa, 0xaaaa, 0xaaaa };
313 vlc_mutex_lock( &p_intf->change_lock );
315 /* If the "display popup" flag has changed */
316 if( p_intf->b_menu_change )
318 if( !GTK_IS_WIDGET( p_intf->p_sys->p_popup ) )
320 p_intf->p_sys->p_popup = create_intf_popup();
321 gtk_object_set_data( GTK_OBJECT( p_intf->p_sys->p_popup ),
324 gtk_menu_popup( GTK_MENU( p_intf->p_sys->p_popup ),
325 NULL, NULL, NULL, NULL, 0, GDK_CURRENT_TIME );
326 p_intf->b_menu_change = 0;
329 /* Update the log window */
330 vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
331 i_stop = *p_intf->p_sys->p_sub->pi_stop;
332 vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
334 if( p_intf->p_sys->p_sub->i_start != i_stop )
336 for( i_start = p_intf->p_sys->p_sub->i_start;
338 i_start = (i_start+1) % INTF_MSG_QSIZE )
340 /* Append all messages to log window */
341 switch( p_intf->p_sys->p_sub->p_msg[i_start].i_type )
354 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, p_color,
355 NULL, p_intf->p_sys->p_sub->p_msg[i_start].psz_msg, -1 );
356 gtk_text_insert( p_intf->p_sys->p_messages_text, NULL, p_color,
360 vlc_mutex_lock( p_intf->p_sys->p_sub->p_lock );
361 p_intf->p_sys->p_sub->i_start = i_start;
362 vlc_mutex_unlock( p_intf->p_sys->p_sub->p_lock );
364 gtk_text_set_point( p_intf->p_sys->p_messages_text,
365 gtk_text_get_length( p_intf->p_sys->p_messages_text ) );
368 /* Update the playlist */
369 GtkPlayListManage( p_data );
371 if( p_input_bank->pp_input[0] != NULL )
373 vlc_mutex_lock( &p_input_bank->pp_input[0]->stream.stream_lock );
375 if( !p_input_bank->pp_input[0]->b_die )
377 /* New input or stream map change */
378 if( p_input_bank->pp_input[0]->stream.b_changed )
380 GtkModeManage( p_intf );
381 GtkSetupMenus( p_intf );
382 p_intf->p_sys->b_playing = 1;
385 /* Manage the slider */
386 if( p_input_bank->pp_input[0]->stream.b_seekable &&
387 p_intf->p_sys->b_playing )
389 float newvalue = p_intf->p_sys->p_adj->value;
391 #define p_area p_input_bank->pp_input[0]->stream.p_selected_area
392 /* If the user hasn't touched the slider since the last time,
393 * then the input can safely change it */
394 if( newvalue == p_intf->p_sys->f_adj_oldvalue )
396 /* Update the value */
397 p_intf->p_sys->p_adj->value = p_intf->p_sys->f_adj_oldvalue =
398 ( 100. * p_area->i_tell ) / p_area->i_size;
400 gtk_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
403 /* Otherwise, send message to the input if the user has
404 * finished dragging the slider */
405 else if( p_intf->p_sys->b_slider_free )
407 off_t i_seek = ( newvalue * p_area->i_size ) / 100;
409 /* release the lock to be able to seek */
410 vlc_mutex_unlock( &p_input_bank->pp_input[0]->stream.stream_lock );
411 input_Seek( p_input_bank->pp_input[0], i_seek );
412 vlc_mutex_lock( &p_input_bank->pp_input[0]->stream.stream_lock );
414 /* Update the old value */
415 p_intf->p_sys->f_adj_oldvalue = newvalue;
420 if( p_intf->p_sys->i_part !=
421 p_input_bank->pp_input[0]->stream.p_selected_area->i_part )
423 p_intf->p_sys->b_chapter_update = 1;
424 GtkSetupMenus( p_intf );
428 vlc_mutex_unlock( &p_input_bank->pp_input[0]->stream.stream_lock );
430 else if( p_intf->p_sys->b_playing && !p_intf->b_die )
432 GtkModeManage( p_intf );
433 p_intf->p_sys->b_playing = 0;
436 /* Manage core vlc functions through the callback */
437 p_intf->pf_manage( p_intf );
441 vlc_mutex_unlock( &p_intf->change_lock );
443 /* Prepare to die, young Skywalker */
450 vlc_mutex_unlock( &p_intf->change_lock );