src/screen.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4
   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.
   9
  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.
  14
  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 */
  19
  20 #include "screen.h"
  21 #include "screen_list.h"
  22 #include "screen_utils.h"
  23 #include "config.h"
  24 #include "i18n.h"
  25 #include "charset.h"
  26 #include "mpdclient.h"
  27 #include "utils.h"
  28 #include "options.h"
  29 #include "colors.h"
  30 #include "strfsong.h"
  31 #include "player_command.h"
  32
  33 #ifndef NCMPC_MINI
  34 #include "hscroll.h"
  35 #endif
  36
  37 #include <mpd/client.h>
  38
  39 #include <stdlib.h>
  40 #include <unistd.h>
  41 #include <stdarg.h>
  42 #include <string.h>
  43 #include <time.h>
  44 #include <locale.h>
  45
  46 #ifndef NCMPC_MINI
  47 /** welcome message time [s] */
  48 static const GTime SCREEN_WELCOME_TIME = 10;
  49 #endif
  50
  51 /* minimum window size */
  52 static const int SCREEN_MIN_COLS = 14;
  53 static const int SCREEN_MIN_ROWS = 5;
  54
  55 /* screens */
  56
  57 #ifndef NCMPC_MINI
  58 static gboolean welcome = TRUE;
  59 #endif
  60
  61 struct screen screen;
  62 static const struct screen_functions *mode_fn = &screen_playlist;
  63 static const struct screen_functions *mode_fn_prev = &screen_playlist;
  64
  65 gboolean
  66 screen_is_visible(const struct screen_functions *sf)
  67 {
  68         return sf == mode_fn;
  69 }
  70
  71 void
  72 screen_switch(const struct screen_functions *sf, struct mpdclient *c)
  73 {
  74         assert(sf != NULL);
  75
  76         if (sf == mode_fn)
  77                 return;
  78
  79         mode_fn_prev = mode_fn;
  80
  81         /* close the old mode */
  82         if (mode_fn->close != NULL)
  83                 mode_fn->close();
  84
  85         /* get functions for the new mode */
  86         mode_fn = sf;
  87
  88         /* open the new mode */
  89         if (mode_fn->open != NULL)
  90                 mode_fn->open(c);
  91
  92         screen_paint(c);
  93 }
  94
  95 void
  96 screen_swap(struct mpdclient *c, const struct mpd_song *song)
  97 {
  98         if (song != NULL)
  99         {
 100                 if (false)
 101                         { /* just a hack to make the ifdefs less ugly */ }
 102 #ifdef ENABLE_SONG_SCREEN
 103                 if (mode_fn_prev == &screen_song)
 104                         screen_song_switch(c, song);
 105 #endif
 106 #ifdef ENABLE_LYRICS_SCREEN
 107                 else if (mode_fn_prev == &screen_lyrics)
 108                         screen_lyrics_switch(c, song, true);
 109 #endif
 110                 else
 111                         screen_switch(mode_fn_prev, c);
 112         }
 113         else
 114                 screen_switch(mode_fn_prev, c);
 115 }
 116
 117 static int
 118 find_configured_screen(const char *name)
 119 {
 120         unsigned i;
 121
 122         for (i = 0; options.screen_list[i] != NULL; ++i)
 123                 if (strcmp(options.screen_list[i], name) == 0)
 124                         return i;
 125
 126         return -1;
 127 }
 128
 129 static void
 130 screen_next_mode(struct mpdclient *c, int offset)
 131 {
 132         int max = g_strv_length(options.screen_list);
 133         int current, next;
 134         const struct screen_functions *sf;
 135
 136         /* find current screen */
 137         current = find_configured_screen(screen_get_name(mode_fn));
 138         next = current + offset;
 139         if (next<0)
 140                 next = max-1;
 141         else if (next>=max)
 142                 next = 0;
 143
 144         sf = screen_lookup_name(options.screen_list[next]);
 145         if (sf != NULL)
 146                 screen_switch(sf, c);
 147 }
 148
 149 static inline int
 150 volume_length(int volume)
 151 {
 152         if (volume == 100)
 153                 return 3;
 154         if (volume >= 10 && volume < 100)
 155                 return 2;
 156         if (volume >= 0 && volume < 10)
 157                 return 1;
 158         return -1;
 159 }
 160
 161 static void
 162 paint_top_window(const char *header, const struct mpdclient *c)
 163 {
 164         title_bar_paint(&screen.title_bar, header, c->status);
 165 }
 166
 167 static void
 168 paint_progress_window(struct mpdclient *c)
 169 {
 170         unsigned elapsed, duration;
 171
 172         if (c->song != NULL && seek_id == (int)mpd_song_get_id(c->song))
 173                 elapsed = seek_target_time;
 174         else if (c->status != NULL)
 175                 elapsed = mpd_status_get_elapsed_time(c->status);
 176         else
 177                 elapsed = 0;
 178
 179         duration = c->status != NULL &&
 180                 !IS_STOPPED(mpd_status_get_state(c->status))
 181                 ? mpd_status_get_total_time(c->status)
 182                 : 0;
 183
 184         if (progress_bar_set(&screen.progress_bar, elapsed, duration))
 185                 progress_bar_paint(&screen.progress_bar);
 186 }
 187
 188 static void
 189 paint_status_window(struct mpdclient *c)
 190 {
 191         WINDOW *w = screen.status_window.w;
 192         const struct mpd_status *status = c->status;
 193         enum mpd_state state;
 194         const struct mpd_song *song = c->song;
 195         int elapsedTime = 0;
 196 #ifdef NCMPC_MINI
 197         static char bitrate[1];
 198 #else
 199         char bitrate[16];
 200 #endif
 201         const char *str = NULL;
 202         int x = 0;
 203
 204         if( time(NULL) - screen.status_timestamp <= options.status_message_time )
 205                 return;
 206
 207         wmove(w, 0, 0);
 208         wclrtoeol(w);
 209         colors_use(w, COLOR_STATUS_BOLD);
 210
 211         state = status == NULL ? MPD_STATE_UNKNOWN
 212                 : mpd_status_get_state(status);
 213
 214         switch (state) {
 215         case MPD_STATE_PLAY:
 216                 str = _("Playing:");
 217                 break;
 218         case MPD_STATE_PAUSE:
 219                 str = _("[Paused]");
 220                 break;
 221         case MPD_STATE_STOP:
 222         default:
 223                 break;
 224         }
 225
 226         if (str) {
 227                 waddstr(w, str);
 228                 x += utf8_width(str) + 1;
 229         }
 230
 231         /* create time string */
 232         memset(screen.buf, 0, screen.buf_size);
 233         if (IS_PLAYING(state) || IS_PAUSED(state)) {
 234                 int total_time = mpd_status_get_total_time(status);
 235                 if (total_time > 0) {
 236                         /*checks the conf to see whether to display elapsed or remaining time */
 237                         if(!strcmp(options.timedisplay_type,"elapsed"))
 238                                 elapsedTime = mpd_status_get_elapsed_time(c->status);
 239                         else if(!strcmp(options.timedisplay_type,"remaining"))
 240                                 elapsedTime = total_time -
 241                                         mpd_status_get_elapsed_time(c->status);
 242
 243                         if (c->song != NULL &&
 244                             seek_id == (int)mpd_song_get_id(c->song))
 245                                 elapsedTime = seek_target_time;
 246
 247                         /* display bitrate if visible-bitrate is true */
 248 #ifndef NCMPC_MINI
 249                         if (options.visible_bitrate) {
 250                                 g_snprintf(bitrate, 16,
 251                                            " [%d kbps]",
 252                                            mpd_status_get_kbit_rate(status));
 253                         } else {
 254                                 bitrate[0] = '\0';
 255                         }
 256 #endif
 257
 258                         /*write out the time, using hours if time over 60 minutes*/
 259                         if (total_time > 3600) {
 260                                 g_snprintf(screen.buf, screen.buf_size,
 261                                            "%s [%i:%02i:%02i/%i:%02i:%02i]",
 262                                            bitrate, elapsedTime/3600, (elapsedTime%3600)/60, elapsedTime%60,
 263                                            total_time / 3600,
 264                                            (total_time % 3600)/60,
 265                                            total_time % 60);
 266                         } else {
 267                                 g_snprintf(screen.buf, screen.buf_size,
 268                                            "%s [%i:%02i/%i:%02i]",
 269                                            bitrate, elapsedTime/60, elapsedTime%60,
 270                                            total_time / 60, total_time % 60);
 271                         }
 272 #ifndef NCMPC_MINI
 273                 } else {
 274                         g_snprintf(screen.buf, screen.buf_size,
 275                                    " [%d kbps]",
 276                                    mpd_status_get_kbit_rate(status));
 277 #endif
 278                 }
 279 #ifndef NCMPC_MINI
 280         } else {
 281                 if (options.display_time) {
 282                         time_t timep;
 283
 284                         time(&timep);
 285                         strftime(screen.buf, screen.buf_size, "%X ",localtime(&timep));
 286                 }
 287 #endif
 288         }
 289
 290         /* display song */
 291         if (IS_PLAYING(state) || IS_PAUSED(state)) {
 292                 char songname[MAX_SONGNAME_LENGTH];
 293 #ifndef NCMPC_MINI
 294                 int width = COLS - x - utf8_width(screen.buf);
 295 #endif
 296
 297                 if (song)
 298                         strfsong(songname, MAX_SONGNAME_LENGTH,
 299                                  options.status_format, song);
 300                 else
 301                         songname[0] = '\0';
 302
 303                 colors_use(w, COLOR_STATUS);
 304                 /* scroll if the song name is to long */
 305 #ifndef NCMPC_MINI
 306                 if (options.scroll && utf8_width(songname) > (unsigned)width) {
 307                         static  scroll_state_t st = { 0, 0 };
 308                         char *tmp = strscroll(songname, options.scroll_sep, width, &st);
 309
 310                         g_strlcpy(songname, tmp, MAX_SONGNAME_LENGTH);
 311                         g_free(tmp);
 312                 }
 313 #endif
 314                 //mvwaddnstr(w, 0, x, songname, width);
 315                 mvwaddstr(w, 0, x, songname);
 316         }
 317
 318         /* display time string */
 319         if (screen.buf[0]) {
 320                 x = screen.status_window.cols - strlen(screen.buf);
 321                 colors_use(w, COLOR_STATUS_TIME);
 322                 mvwaddstr(w, 0, x, screen.buf);
 323         }
 324
 325         wnoutrefresh(w);
 326 }
 327
 328 void
 329 screen_exit(void)
 330 {
 331         if (mode_fn->close != NULL)
 332                 mode_fn->close();
 333
 334         screen_list_exit();
 335
 336         string_list_free(screen.find_history);
 337         g_free(screen.buf);
 338         g_free(screen.findbuf);
 339
 340         title_bar_deinit(&screen.title_bar);
 341         delwin(screen.main_window.w);
 342         progress_bar_deinit(&screen.progress_bar);
 343         delwin(screen.status_window.w);
 344 }
 345
 346 void
 347 screen_resize(struct mpdclient *c)
 348 {
 349         if (COLS<SCREEN_MIN_COLS || LINES<SCREEN_MIN_ROWS) {
 350                 screen_exit();
 351                 fprintf(stderr, "%s", _("Error: Screen too small"));
 352                 exit(EXIT_FAILURE);
 353         }
 354
 355         resizeterm(LINES, COLS);
 356
 357         screen.cols = COLS;
 358         screen.rows = LINES;
 359
 360         title_bar_resize(&screen.title_bar, screen.cols);
 361
 362         /* main window */
 363         screen.main_window.cols = screen.cols;
 364         screen.main_window.rows = screen.rows-4;
 365         wresize(screen.main_window.w, screen.main_window.rows, screen.cols);
 366         wclear(screen.main_window.w);
 367
 368         /* progress window */
 369         progress_bar_resize(&screen.progress_bar, screen.cols,
 370                             screen.rows - 2, 0);
 371         progress_bar_paint(&screen.progress_bar);
 372
 373         /* status window */
 374         screen.status_window.cols = screen.cols;
 375         wresize(screen.status_window.w, 1, screen.cols);
 376         mvwin(screen.status_window.w, screen.rows-1, 0);
 377
 378         screen.buf_size = screen.cols;
 379         g_free(screen.buf);
 380         screen.buf = g_malloc(screen.cols);
 381
 382         /* resize all screens */
 383         screen_list_resize(screen.main_window.cols, screen.main_window.rows);
 384
 385         /* ? - without this the cursor becomes visible with aterm & Eterm */
 386         curs_set(1);
 387         curs_set(0);
 388
 389         screen_paint(c);
 390 }
 391
 392 void
 393 screen_status_message(const char *msg)
 394 {
 395         WINDOW *w = screen.status_window.w;
 396
 397         wmove(w, 0, 0);
 398         wclrtoeol(w);
 399         colors_use(w, COLOR_STATUS_ALERT);
 400         waddstr(w, msg);
 401         wnoutrefresh(w);
 402         screen.status_timestamp = time(NULL);
 403 }
 404
 405 void
 406 screen_status_printf(const char *format, ...)
 407 {
 408         char *msg;
 409         va_list ap;
 410
 411         va_start(ap,format);
 412         msg = g_strdup_vprintf(format,ap);
 413         va_end(ap);
 414         screen_status_message(msg);
 415         g_free(msg);
 416 }
 417
 418 void
 419 screen_init(struct mpdclient *c)
 420 {
 421         if (COLS < SCREEN_MIN_COLS || LINES < SCREEN_MIN_ROWS) {
 422                 fprintf(stderr, "%s\n", _("Error: Screen too small"));
 423                 exit(EXIT_FAILURE);
 424         }
 425
 426         screen.cols = COLS;
 427         screen.rows = LINES;
 428
 429         screen.buf  = g_malloc(screen.cols);
 430         screen.buf_size = screen.cols;
 431         screen.findbuf = NULL;
 432         screen.start_timestamp = time(NULL);
 433
 434         /* create top window */
 435         title_bar_init(&screen.title_bar, screen.cols, 0, 0);
 436
 437         /* create main window */
 438         window_init(&screen.main_window, screen.rows - 4, screen.cols, 2, 0);
 439
 440         //  leaveok(screen.main_window.w, TRUE); temporary disabled
 441         keypad(screen.main_window.w, TRUE);
 442
 443         /* create progress window */
 444         progress_bar_init(&screen.progress_bar, screen.cols,
 445                           screen.rows - 2, 0);
 446         progress_bar_paint(&screen.progress_bar);
 447
 448         /* create status window */
 449         window_init(&screen.status_window, 1, screen.cols,
 450                     screen.rows - 1, 0);
 451
 452         leaveok(screen.status_window.w, FALSE);
 453         keypad(screen.status_window.w, TRUE);
 454
 455 #ifdef ENABLE_COLORS
 456         if (options.enable_colors) {
 457                 /* set background attributes */
 458                 wbkgd(stdscr, COLOR_PAIR(COLOR_LIST));
 459                 wbkgd(screen.main_window.w,     COLOR_PAIR(COLOR_LIST));
 460                 wbkgd(screen.title_bar.window.w, COLOR_PAIR(COLOR_TITLE));
 461                 wbkgd(screen.progress_bar.window.w,
 462                       COLOR_PAIR(COLOR_PROGRESSBAR));
 463                 wbkgd(screen.status_window.w,   COLOR_PAIR(COLOR_STATUS));
 464                 colors_use(screen.progress_bar.window.w, COLOR_PROGRESSBAR);
 465         }
 466 #endif
 467
 468         doupdate();
 469
 470         /* initialize screens */
 471         screen_list_init(screen.main_window.w,
 472                          screen.main_window.cols, screen.main_window.rows);
 473
 474         if (mode_fn->open != NULL)
 475                 mode_fn->open(c);
 476 }
 477
 478 void
 479 screen_paint(struct mpdclient *c)
 480 {
 481         const char *title = NULL;
 482
 483         if (mode_fn->get_title != NULL)
 484                 title = mode_fn->get_title(screen.buf, screen.buf_size);
 485
 486         /* paint the title/header window */
 487         if( title )
 488                 paint_top_window(title, c);
 489         else
 490                 paint_top_window("", c);
 491
 492         /* paint the bottom window */
 493
 494         paint_progress_window(c);
 495         paint_status_window(c);
 496
 497         /* paint the main window */
 498
 499         wclear(screen.main_window.w);
 500         if (mode_fn->paint != NULL)
 501                 mode_fn->paint();
 502
 503         /* move the cursor to the origin */
 504
 505         if (!options.hardware_cursor)
 506                 wmove(screen.main_window.w, 0, 0);
 507
 508         wnoutrefresh(screen.main_window.w);
 509
 510         /* tell curses to update */
 511         doupdate();
 512 }
 513
 514 void
 515 screen_update(struct mpdclient *c)
 516 {
 517 #ifndef NCMPC_MINI
 518         static bool initialized = false;
 519         static bool repeat;
 520         static bool random_enabled;
 521         static bool single;
 522         static bool consume;
 523         static unsigned crossfade;
 524         static unsigned dbupdate;
 525
 526         /* print a message if mpd status has changed */
 527         if (c->status != NULL) {
 528                 if (!initialized) {
 529                         repeat = mpd_status_get_repeat(c->status);
 530                         random_enabled = mpd_status_get_random(c->status);
 531                         single = mpd_status_get_single(c->status);
 532                         consume = mpd_status_get_consume(c->status);
 533                         crossfade = mpd_status_get_crossfade(c->status);
 534                         dbupdate = mpd_status_get_update_id(c->status);
 535                         initialized = true;
 536                 }
 537
 538                 if (repeat != mpd_status_get_repeat(c->status))
 539                         screen_status_printf(mpd_status_get_repeat(c->status) ?
 540                                              _("Repeat mode is on") :
 541                                              _("Repeat mode is off"));
 542
 543                 if (random_enabled != mpd_status_get_random(c->status))
 544                         screen_status_printf(mpd_status_get_random(c->status) ?
 545                                              _("Random mode is on") :
 546                                              _("Random mode is off"));
 547
 548                 if (single != mpd_status_get_single(c->status))
 549                         screen_status_printf(mpd_status_get_single(c->status) ?
 550                                              /* "single" mode means
 551                                                 that MPD will
 552                                                 automatically stop
 553                                                 after playing one
 554                                                 single song */
 555                                              _("Single mode is on") :
 556                                              _("Single mode is off"));
 557
 558                 if (consume != mpd_status_get_consume(c->status))
 559                         screen_status_printf(mpd_status_get_consume(c->status) ?
 560                                              /* "consume" mode means
 561                                                 that MPD removes each
 562                                                 song which has
 563                                                 finished playing */
 564                                              _("Consume mode is on") :
 565                                              _("Consume mode is off"));
 566
 567                 if (crossfade != mpd_status_get_crossfade(c->status))
 568                         screen_status_printf(_("Crossfade %d seconds"),
 569                                              mpd_status_get_crossfade(c->status));
 570
 571                 if (dbupdate != 0 &&
 572                     dbupdate != mpd_status_get_update_id(c->status)) {
 573                         screen_status_printf(_("Database updated"));
 574                 }
 575
 576                 repeat = mpd_status_get_repeat(c->status);
 577                 random_enabled = mpd_status_get_random(c->status);
 578                 single = mpd_status_get_single(c->status);
 579                 consume = mpd_status_get_consume(c->status);
 580                 crossfade = mpd_status_get_crossfade(c->status);
 581                 dbupdate = mpd_status_get_update_id(c->status);
 582         }
 583
 584         /* update title/header window */
 585         if (welcome && options.welcome_screen_list &&
 586             time(NULL)-screen.start_timestamp <= SCREEN_WELCOME_TIME)
 587                 paint_top_window("", c);
 588         else
 589 #endif
 590         if (mode_fn->get_title != NULL) {
 591                 paint_top_window(mode_fn->get_title(screen.buf,screen.buf_size), c);
 592 #ifndef NCMPC_MINI
 593                 welcome = FALSE;
 594 #endif
 595         } else
 596                 paint_top_window("", c);
 597
 598         /* update progress window */
 599         paint_progress_window(c);
 600
 601         /* update status window */
 602         paint_status_window(c);
 603
 604         /* update the main window */
 605         if (mode_fn->update != NULL)
 606                 mode_fn->update(c);
 607
 608         /* move the cursor to the origin */
 609
 610         if (!options.hardware_cursor)
 611                 wmove(screen.main_window.w, 0, 0);
 612
 613         wnoutrefresh(screen.main_window.w);
 614
 615         /* tell curses to update */
 616         doupdate();
 617 }
 618
 619 #ifdef HAVE_GETMOUSE
 620 int
 621 screen_get_mouse_event(struct mpdclient *c, unsigned long *bstate, int *row)
 622 {
 623         MEVENT event;
 624
 625         /* retrieve the mouse event from ncurses */
 626         getmouse(&event);
 627         /* calculate the selected row in the list window */
 628         *row = event.y - screen.title_bar.window.rows;
 629         /* copy button state bits */
 630         *bstate = event.bstate;
 631         /* if button 2 was pressed switch screen */
 632         if (event.bstate & BUTTON2_CLICKED) {
 633                 screen_cmd(c, CMD_SCREEN_NEXT);
 634                 return 1;
 635         }
 636
 637         return 0;
 638 }
 639 #endif
 640
 641 void
 642 screen_cmd(struct mpdclient *c, command_t cmd)
 643 {
 644 #ifndef NCMPC_MINI
 645         welcome = FALSE;
 646 #endif
 647
 648         if (mode_fn->cmd != NULL && mode_fn->cmd(c, cmd))
 649                 return;
 650
 651         if (handle_player_command(c, cmd))
 652                 return;
 653
 654         switch(cmd) {
 655         case CMD_TOGGLE_FIND_WRAP:
 656                 options.find_wrap = !options.find_wrap;
 657                 screen_status_printf(options.find_wrap ?
 658                                      _("Find mode: Wrapped") :
 659                                      _("Find mode: Normal"));
 660                 break;
 661         case CMD_TOGGLE_AUTOCENTER:
 662                 options.auto_center = !options.auto_center;
 663                 screen_status_printf(options.auto_center ?
 664                                      _("Auto center mode: On") :
 665                                      _("Auto center mode: Off"));
 666                 break;
 667         case CMD_SCREEN_UPDATE:
 668                 screen_paint(c);
 669                 break;
 670         case CMD_SCREEN_PREVIOUS:
 671                 screen_next_mode(c, -1);
 672                 break;
 673         case CMD_SCREEN_NEXT:
 674                 screen_next_mode(c, 1);
 675                 break;
 676         case CMD_SCREEN_PLAY:
 677                 screen_switch(&screen_playlist, c);
 678                 break;
 679         case CMD_SCREEN_FILE:
 680                 screen_switch(&screen_browse, c);
 681                 break;
 682 #ifdef ENABLE_HELP_SCREEN
 683         case CMD_SCREEN_HELP:
 684                 screen_switch(&screen_help, c);
 685                 break;
 686 #endif
 687 #ifdef ENABLE_SEARCH_SCREEN
 688         case CMD_SCREEN_SEARCH:
 689                 screen_switch(&screen_search, c);
 690                 break;
 691 #endif
 692 #ifdef ENABLE_ARTIST_SCREEN
 693         case CMD_SCREEN_ARTIST:
 694                 screen_switch(&screen_artist, c);
 695                 break;
 696 #endif
 697 #ifdef ENABLE_SONG_SCREEN
 698         case CMD_SCREEN_SONG:
 699                 screen_switch(&screen_song, c);
 700                 break;
 701 #endif
 702 #ifdef ENABLE_KEYDEF_SCREEN
 703         case CMD_SCREEN_KEYDEF:
 704                 screen_switch(&screen_keydef, c);
 705                 break;
 706 #endif
 707 #ifdef ENABLE_LYRICS_SCREEN
 708         case CMD_SCREEN_LYRICS:
 709                 screen_switch(&screen_lyrics, c);
 710                 break;
 711 #endif
 712 #ifdef ENABLE_OUTPUTS_SCREEN
 713         case CMD_SCREEN_OUTPUTS:
 714                 screen_switch(&screen_outputs, c);
 715                 break;
 716         case CMD_SCREEN_SWAP:
 717                 screen_swap(c, NULL);
 718                 break;
 719 #endif
 720
 721         default:
 722                 break;
 723         }
 724 }