1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2010 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
20 #include "screen.h"
21 #include "screen_interface.h"
22 #include "screen_list.h"
23 #include "screen_utils.h"
24 #include "screen_message.h"
25 #include "config.h"
26 #include "i18n.h"
27 #include "charset.h"
28 #include "mpdclient.h"
29 #include "utils.h"
30 #include "options.h"
31 #include "colors.h"
32 #include "player_command.h"
33 #include "screen_help.h"
34 #include "screen_queue.h"
35 #include "screen_file.h"
36 #include "screen_artist.h"
37 #include "screen_search.h"
38 #include "screen_song.h"
39 #include "screen_keydef.h"
40 #include "screen_lyrics.h"
41 #include "screen_outputs.h"
43 #include <mpd/client.h>
45 #include <stdlib.h>
46 #include <unistd.h>
47 #include <string.h>
48 #include <time.h>
49 #include <locale.h>
51 #ifndef NCMPC_MINI
52 /** welcome message time [s] */
53 static const GTime SCREEN_WELCOME_TIME = 10;
54 #endif
56 /* minimum window size */
57 static const int SCREEN_MIN_COLS = 14;
58 static const int SCREEN_MIN_ROWS = 5;
60 /* screens */
62 struct screen screen;
63 static const struct screen_functions *mode_fn = &screen_queue;
64 static const struct screen_functions *mode_fn_prev = &screen_queue;
66 gboolean
67 screen_is_visible(const struct screen_functions *sf)
68 {
69 return sf == mode_fn;
70 }
72 void
73 screen_switch(const struct screen_functions *sf, struct mpdclient *c)
74 {
75 assert(sf != NULL);
77 if (sf == mode_fn)
78 return;
80 mode_fn_prev = mode_fn;
82 /* close the old mode */
83 if (mode_fn->close != NULL)
84 mode_fn->close();
86 /* get functions for the new mode */
87 mode_fn = sf;
89 /* open the new mode */
90 if (mode_fn->open != NULL)
91 mode_fn->open(c);
93 screen_paint(c);
94 }
96 void
97 screen_swap(struct mpdclient *c, const struct mpd_song *song)
98 {
99 if (song != NULL)
100 {
101 if (false)
102 { /* just a hack to make the ifdefs less ugly */ }
103 #ifdef ENABLE_SONG_SCREEN
104 if (mode_fn_prev == &screen_song)
105 screen_song_switch(c, song);
106 #endif
107 #ifdef ENABLE_LYRICS_SCREEN
108 else if (mode_fn_prev == &screen_lyrics)
109 screen_lyrics_switch(c, song, true);
110 #endif
111 else
112 screen_switch(mode_fn_prev, c);
113 }
114 else
115 screen_switch(mode_fn_prev, c);
116 }
118 static int
119 find_configured_screen(const char *name)
120 {
121 unsigned i;
123 for (i = 0; options.screen_list[i] != NULL; ++i)
124 if (strcmp(options.screen_list[i], name) == 0)
125 return i;
127 return -1;
128 }
130 static void
131 screen_next_mode(struct mpdclient *c, int offset)
132 {
133 int max = g_strv_length(options.screen_list);
134 int current, next;
135 const struct screen_functions *sf;
137 /* find current screen */
138 current = find_configured_screen(screen_get_name(mode_fn));
139 next = current + offset;
140 if (next<0)
141 next = max-1;
142 else if (next>=max)
143 next = 0;
145 sf = screen_lookup_name(options.screen_list[next]);
146 if (sf != NULL)
147 screen_switch(sf, c);
148 }
150 static void
151 paint_top_window(const char *header, const struct mpdclient *c)
152 {
153 title_bar_paint(&screen.title_bar, header, c->status);
154 }
156 static void
157 update_progress_window(struct mpdclient *c, bool repaint)
158 {
159 unsigned elapsed, duration;
161 if (c->status == NULL)
162 elapsed = 0;
163 else if (seek_id >= 0 && seek_id == mpd_status_get_song_id(c->status))
164 elapsed = seek_target_time;
165 else
166 elapsed = mpd_status_get_elapsed_time(c->status);
168 duration = mpdclient_is_playing(c)
169 ? mpd_status_get_total_time(c->status)
170 : 0;
172 if (progress_bar_set(&screen.progress_bar, elapsed, duration) ||
173 repaint)
174 progress_bar_paint(&screen.progress_bar);
175 }
177 void
178 screen_exit(void)
179 {
180 if (mode_fn->close != NULL)
181 mode_fn->close();
183 screen_list_exit();
185 string_list_free(screen.find_history);
186 g_free(screen.buf);
187 g_free(screen.findbuf);
189 title_bar_deinit(&screen.title_bar);
190 delwin(screen.main_window.w);
191 progress_bar_deinit(&screen.progress_bar);
192 status_bar_deinit(&screen.status_bar);
194 #ifndef NCMPC_MINI
195 if (screen.welcome_source_id != 0)
196 g_source_remove(screen.welcome_source_id);
197 #endif
198 }
200 void
201 screen_resize(struct mpdclient *c)
202 {
203 if (COLS<SCREEN_MIN_COLS || LINES<SCREEN_MIN_ROWS) {
204 screen_exit();
205 fprintf(stderr, "%s", _("Error: Screen too small"));
206 exit(EXIT_FAILURE);
207 }
209 resizeterm(LINES, COLS);
211 screen.cols = COLS;
212 screen.rows = LINES;
214 title_bar_resize(&screen.title_bar, screen.cols);
216 /* main window */
217 screen.main_window.cols = screen.cols;
218 screen.main_window.rows = screen.rows-4;
219 wresize(screen.main_window.w, screen.main_window.rows, screen.cols);
220 wclear(screen.main_window.w);
222 /* progress window */
223 progress_bar_resize(&screen.progress_bar, screen.cols,
224 screen.rows - 2, 0);
225 progress_bar_paint(&screen.progress_bar);
227 /* status window */
228 status_bar_resize(&screen.status_bar, screen.cols, screen.rows - 1, 0);
229 status_bar_paint(&screen.status_bar, c->status, c->song);
231 screen.buf_size = screen.cols;
232 g_free(screen.buf);
233 screen.buf = g_malloc(screen.cols);
235 /* resize all screens */
236 screen_list_resize(screen.main_window.cols, screen.main_window.rows);
238 /* ? - without this the cursor becomes visible with aterm & Eterm */
239 curs_set(1);
240 curs_set(0);
242 screen_paint(c);
243 }
245 #ifndef NCMPC_MINI
246 static gboolean
247 welcome_timer_callback(gpointer data)
248 {
249 struct mpdclient *c = data;
251 #ifndef NCMPC_MINI
252 screen.welcome_source_id = 0;
253 #endif
255 paint_top_window(mode_fn->get_title != NULL
256 ? mode_fn->get_title(screen.buf, screen.buf_size)
257 : "",
258 c);
259 doupdate();
261 return false;
262 }
263 #endif
265 void
266 screen_init(struct mpdclient *c)
267 {
268 if (COLS < SCREEN_MIN_COLS || LINES < SCREEN_MIN_ROWS) {
269 fprintf(stderr, "%s\n", _("Error: Screen too small"));
270 exit(EXIT_FAILURE);
271 }
273 screen.cols = COLS;
274 screen.rows = LINES;
276 screen.buf = g_malloc(screen.cols);
277 screen.buf_size = screen.cols;
278 screen.findbuf = NULL;
280 #ifndef NCMPC_MINI
281 if (options.welcome_screen_list)
282 screen.welcome_source_id =
283 g_timeout_add(SCREEN_WELCOME_TIME * 1000,
284 welcome_timer_callback, c);
285 #endif
287 /* create top window */
288 title_bar_init(&screen.title_bar, screen.cols, 0, 0);
290 /* create main window */
291 window_init(&screen.main_window, screen.rows - 4, screen.cols, 2, 0);
293 // leaveok(screen.main_window.w, TRUE); temporary disabled
294 keypad(screen.main_window.w, TRUE);
296 /* create progress window */
297 progress_bar_init(&screen.progress_bar, screen.cols,
298 screen.rows - 2, 0);
299 progress_bar_paint(&screen.progress_bar);
301 /* create status window */
302 status_bar_init(&screen.status_bar, screen.cols, screen.rows - 1, 0);
303 status_bar_paint(&screen.status_bar, c->status, c->song);
305 #ifdef ENABLE_COLORS
306 if (options.enable_colors) {
307 /* set background attributes */
308 wbkgd(stdscr, COLOR_PAIR(COLOR_LIST));
309 wbkgd(screen.main_window.w, COLOR_PAIR(COLOR_LIST));
310 wbkgd(screen.title_bar.window.w, COLOR_PAIR(COLOR_TITLE));
311 wbkgd(screen.progress_bar.window.w,
312 COLOR_PAIR(COLOR_PROGRESSBAR));
313 wbkgd(screen.status_bar.window.w, COLOR_PAIR(COLOR_STATUS));
314 colors_use(screen.progress_bar.window.w, COLOR_PROGRESSBAR);
315 }
316 #endif
318 doupdate();
320 /* initialize screens */
321 screen_list_init(screen.main_window.w,
322 screen.main_window.cols, screen.main_window.rows);
324 if (mode_fn->open != NULL)
325 mode_fn->open(c);
326 }
328 void
329 screen_paint(struct mpdclient *c)
330 {
331 const char *title = NULL;
333 if (mode_fn->get_title != NULL)
334 title = mode_fn->get_title(screen.buf, screen.buf_size);
336 /* paint the title/header window */
337 if( title )
338 paint_top_window(title, c);
339 else
340 paint_top_window("", c);
342 /* paint the bottom window */
344 update_progress_window(c, true);
345 status_bar_paint(&screen.status_bar, c->status, c->song);
347 /* paint the main window */
349 wclear(screen.main_window.w);
350 if (mode_fn->paint != NULL)
351 mode_fn->paint();
353 /* move the cursor to the origin */
355 if (!options.hardware_cursor)
356 wmove(screen.main_window.w, 0, 0);
358 wnoutrefresh(screen.main_window.w);
360 /* tell curses to update */
361 doupdate();
362 }
364 void
365 screen_update(struct mpdclient *c)
366 {
367 #ifndef NCMPC_MINI
368 static bool was_connected;
369 static bool initialized = false;
370 static bool repeat;
371 static bool random_enabled;
372 static bool single;
373 static bool consume;
374 static unsigned crossfade;
376 /* print a message if mpd status has changed */
377 if ((c->events & MPD_IDLE_OPTIONS) && c->status != NULL) {
378 if (!initialized) {
379 repeat = mpd_status_get_repeat(c->status);
380 random_enabled = mpd_status_get_random(c->status);
381 single = mpd_status_get_single(c->status);
382 consume = mpd_status_get_consume(c->status);
383 crossfade = mpd_status_get_crossfade(c->status);
384 initialized = true;
385 }
387 if (repeat != mpd_status_get_repeat(c->status))
388 screen_status_printf(mpd_status_get_repeat(c->status) ?
389 _("Repeat mode is on") :
390 _("Repeat mode is off"));
392 if (random_enabled != mpd_status_get_random(c->status))
393 screen_status_printf(mpd_status_get_random(c->status) ?
394 _("Random mode is on") :
395 _("Random mode is off"));
397 if (single != mpd_status_get_single(c->status))
398 screen_status_printf(mpd_status_get_single(c->status) ?
399 /* "single" mode means
400 that MPD will
401 automatically stop
402 after playing one
403 single song */
404 _("Single mode is on") :
405 _("Single mode is off"));
407 if (consume != mpd_status_get_consume(c->status))
408 screen_status_printf(mpd_status_get_consume(c->status) ?
409 /* "consume" mode means
410 that MPD removes each
411 song which has
412 finished playing */
413 _("Consume mode is on") :
414 _("Consume mode is off"));
416 if (crossfade != mpd_status_get_crossfade(c->status))
417 screen_status_printf(_("Crossfade %d seconds"),
418 mpd_status_get_crossfade(c->status));
420 repeat = mpd_status_get_repeat(c->status);
421 random_enabled = mpd_status_get_random(c->status);
422 single = mpd_status_get_single(c->status);
423 consume = mpd_status_get_consume(c->status);
424 crossfade = mpd_status_get_crossfade(c->status);
425 }
427 if ((c->events & MPD_IDLE_DATABASE) != 0 && was_connected &&
428 mpdclient_is_connected(c))
429 screen_status_printf(_("Database updated"));
430 was_connected = mpdclient_is_connected(c);
432 /* update title/header window */
433 if (screen.welcome_source_id != 0)
434 paint_top_window("", c);
435 else
436 #endif
437 if (mode_fn->get_title != NULL) {
438 paint_top_window(mode_fn->get_title(screen.buf,screen.buf_size), c);
439 } else
440 paint_top_window("", c);
442 /* update progress window */
443 update_progress_window(c, false);
445 /* update status window */
446 status_bar_paint(&screen.status_bar, c->status, c->song);
448 /* update the main window */
449 if (mode_fn->update != NULL)
450 mode_fn->update(c);
452 /* move the cursor to the origin */
454 if (!options.hardware_cursor)
455 wmove(screen.main_window.w, 0, 0);
457 wnoutrefresh(screen.main_window.w);
459 /* tell curses to update */
460 doupdate();
461 }
463 #ifdef HAVE_GETMOUSE
464 int
465 screen_get_mouse_event(struct mpdclient *c, unsigned long *bstate, int *row)
466 {
467 MEVENT event;
469 /* retrieve the mouse event from ncurses */
470 getmouse(&event);
471 /* calculate the selected row in the list window */
472 *row = event.y - screen.title_bar.window.rows;
473 /* copy button state bits */
474 *bstate = event.bstate;
475 /* if button 2 was pressed switch screen */
476 if (event.bstate & BUTTON2_CLICKED) {
477 screen_cmd(c, CMD_SCREEN_NEXT);
478 return 1;
479 }
481 return 0;
482 }
483 #endif
485 void
486 screen_cmd(struct mpdclient *c, command_t cmd)
487 {
488 #ifndef NCMPC_MINI
489 if (screen.welcome_source_id != 0) {
490 g_source_remove(screen.welcome_source_id);
491 screen.welcome_source_id = 0;
492 }
493 #endif
495 if (mode_fn->cmd != NULL && mode_fn->cmd(c, cmd))
496 return;
498 if (handle_player_command(c, cmd))
499 return;
501 switch(cmd) {
502 case CMD_TOGGLE_FIND_WRAP:
503 options.find_wrap = !options.find_wrap;
504 screen_status_printf(options.find_wrap ?
505 _("Find mode: Wrapped") :
506 _("Find mode: Normal"));
507 break;
508 case CMD_TOGGLE_AUTOCENTER:
509 options.auto_center = !options.auto_center;
510 screen_status_printf(options.auto_center ?
511 _("Auto center mode: On") :
512 _("Auto center mode: Off"));
513 break;
514 case CMD_SCREEN_UPDATE:
515 screen_paint(c);
516 break;
517 case CMD_SCREEN_PREVIOUS:
518 screen_next_mode(c, -1);
519 break;
520 case CMD_SCREEN_NEXT:
521 screen_next_mode(c, 1);
522 break;
523 case CMD_SCREEN_PLAY:
524 screen_switch(&screen_queue, c);
525 break;
526 case CMD_SCREEN_FILE:
527 screen_switch(&screen_browse, c);
528 break;
529 #ifdef ENABLE_HELP_SCREEN
530 case CMD_SCREEN_HELP:
531 screen_switch(&screen_help, c);
532 break;
533 #endif
534 #ifdef ENABLE_SEARCH_SCREEN
535 case CMD_SCREEN_SEARCH:
536 screen_switch(&screen_search, c);
537 break;
538 #endif
539 #ifdef ENABLE_ARTIST_SCREEN
540 case CMD_SCREEN_ARTIST:
541 screen_switch(&screen_artist, c);
542 break;
543 #endif
544 #ifdef ENABLE_SONG_SCREEN
545 case CMD_SCREEN_SONG:
546 screen_switch(&screen_song, c);
547 break;
548 #endif
549 #ifdef ENABLE_KEYDEF_SCREEN
550 case CMD_SCREEN_KEYDEF:
551 screen_switch(&screen_keydef, c);
552 break;
553 #endif
554 #ifdef ENABLE_LYRICS_SCREEN
555 case CMD_SCREEN_LYRICS:
556 screen_switch(&screen_lyrics, c);
557 break;
558 #endif
559 #ifdef ENABLE_OUTPUTS_SCREEN
560 case CMD_SCREEN_OUTPUTS:
561 screen_switch(&screen_outputs, c);
562 break;
563 case CMD_SCREEN_SWAP:
564 screen_swap(c, NULL);
565 break;
566 #endif
568 default:
569 break;
570 }
571 }