2 * Copyright (C) 1998-2006 Andre Noll <maan@systemlinux.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file gui.c ncurses-based interface for paraslash */
21 #include "gui.cmdline.h"
24 #include "ringbuffer.h"
29 /** define the array of error lists needed by para_gui */
31 extern const char *status_item_list[NUM_STAT_ITEMS];
32 static char *stat_content[NUM_STAT_ITEMS];
34 #define STANDARD_STATUS_BAR "para_gui " VERSION " (hit ? for help)"
36 static int signal_pipe;
38 static void finish(int sig);
40 static struct win_data {
46 } top, bot, sb, in, sep;
48 #define RINGBUFFER_SIZE 512
55 #define NUM_LINES(len) (1 + (len) / bot.cols)
57 static unsigned scroll_position;
59 static int external_cmd_died, curses_active;
60 static pid_t external_cmd_pid;
62 static int command_pipe = -1;
63 static int audiod_pipe = -1;
64 static struct gengetopt_args_info conf;
66 enum {GETCH_MODE, COMMAND_MODE, EXTERNAL_MODE};
69 #define COLOR_STATUSBAR 32
70 #define COLOR_COMMAND 33
71 #define COLOR_OUTPUT 34
73 #define COLOR_ERRMSG 36
74 #define COLOR_WELCOME 37
75 #define COLOR_SEPARATOR 38
82 const char *description;
83 void (*handler)(void);
89 char postfix[MAXLINE];
95 char content[MAXLINE];
98 static struct gui_theme theme;
103 static void com_help(void);
104 static void com_reread_conf(void);
105 static void com_enlarge_top_win(void);
106 static void com_shrink_top_win(void);
107 static void com_version(void);
108 static void com_quit(void);
109 static void com_refresh(void);
110 static void com_ll_incr(void);
111 static void com_ll_decr(void);
112 static void com_prev_theme(void);
113 static void com_next_theme(void);
114 static void com_scroll_up(void);
115 static void com_scroll_down(void);
116 static void com_page_up(void);
117 static void com_page_down(void);
119 struct gui_command command_list[] = {
123 .description = "print help",
127 .name = "enlarge_win",
128 .description = "enlarge the top window",
129 .handler = com_enlarge_top_win
132 .name = "shrink_win",
133 .description = "shrink the top window",
134 .handler = com_shrink_top_win
137 .name = "reread_conf",
138 .description = "reread configuration file",
139 .handler = com_reread_conf
143 .description = "exit para_gui",
148 .description = "redraw the screen",
149 .handler = com_refresh
152 .name = "next_theme",
153 .description = "switch to next theme",
154 .handler = com_next_theme
157 .name = "prev_theme",
158 .description = "switch to previous stream",
159 .handler = com_prev_theme
163 .description = "increase loglevel (decreases verbosity)",
164 .handler = com_ll_incr
168 .description = "decrease loglevel (increases verbosity)",
169 .handler = com_ll_decr
173 .description = "show the para_gui version",
174 .handler = com_version
178 .description = "scroll up one line",
179 .handler = com_scroll_up
182 .name = "scroll_down",
183 .description = "scroll down one line",
184 .handler = com_scroll_down
188 .description = "scroll up one page",
189 .handler = com_page_up
193 .description = "scroll down one page",
194 .handler = com_page_down
200 static int find_cmd_byname(char *name)
204 for (i = 0; command_list[i].handler; i++)
205 if (!strcmp(command_list[i].name, name))
210 /* taken from mutt */
211 static char *km_keyname(int c)
216 sprintf(buf, "<up>");
220 sprintf(buf, "<down>");
224 sprintf(buf, "<left>");
227 if (c == KEY_RIGHT) {
228 sprintf(buf, "<right>");
231 if (c == KEY_NPAGE) {
232 sprintf(buf, "<npage>");
235 if (c == KEY_PPAGE) {
236 sprintf(buf, "<ppage>");
239 if (c < 256 && c > -128 && iscntrl((unsigned char) c)) {
244 buf[1] = (c + '@') & 0x7f;
247 snprintf(buf, sizeof(buf), "\\%d%d%d", c >> 6,
248 (c >> 3) & 7, c & 7);
249 } else if (c >= KEY_F0 && c < KEY_F(256))
250 sprintf(buf, "<F%d>", c - KEY_F0);
252 snprintf(buf, sizeof(buf), "%c", (unsigned char) c);
254 snprintf(buf, sizeof(buf), "\\x%hx", (unsigned short) c);
258 static char *configfile_exists(void)
260 static char *config_file;
263 if (!conf.config_file_given) {
265 char *home = para_homedir();
266 config_file = make_message("%s/.paraslash/gui.conf",
272 tmp = conf.config_file_arg;
273 return file_exists(tmp)? tmp: NULL;
277 * print num spaces to curses window
279 static void add_spaces(WINDOW* win, unsigned int num)
288 * print aligned string to curses window. This function always prints
291 static int align_str(WINDOW* win, const char *string, unsigned int len,
294 int num; /* of spaces */
299 num = len - strlen(string);
300 str = para_strdup(string);
307 add_spaces(win, num);
308 } else if (align == RIGHT) {
309 add_spaces(win, num);
312 add_spaces(win, num / 2);
313 waddstr(win, str[0]? str: "");
314 add_spaces(win, num - num / 2);
320 __printf_2_3 static void print_in_bar(int color, const char *fmt,...)
326 wattron(in.win, COLOR_PAIR(color));
327 PARA_VSPRINTF(fmt, msg);
329 align_str(in.win, msg, sb.cols, LEFT);
335 * update the status bar
337 static void print_status_bar(void)
342 align_str(sb.win,STANDARD_STATUS_BAR, sb.cols, CENTER);
347 * get the number of the oldest rbe that is (partially) visible. On return,
348 * lines contains the sum of the number of lines of all visable entries. If the
349 * first one is only partially visible, lines is greater than bot.lines.
351 static int first_visible_rbe(unsigned *lines)
355 for (i = scroll_position; i < RINGBUFFER_SIZE; i++) {
356 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
360 // fprintf(stderr, "found: %s\n", rbe->msg);
361 rbe_lines = NUM_LINES(rbe->len);
362 if (rbe_lines > bot.lines)
365 if (*lines >= bot.lines)
368 return RINGBUFFER_SIZE - 1;
371 static int draw_top_rbe(unsigned *lines)
374 int offset, fvr = first_visible_rbe(lines);
375 struct rb_entry *rbe;
379 wmove(bot.win, 0, 0);
380 rbe = ringbuffer_get(bot_win_rb, fvr);
383 /* first rbe might be only partially visible */
384 offset = (*lines - bot.lines) * bot.cols;
385 len = strlen(rbe->msg);
386 if (offset < 0 || len < offset)
388 wattron(bot.win, COLOR_PAIR(rbe->color));
389 waddstr(bot.win, rbe->msg + offset);
390 *lines = NUM_LINES(len - offset);
394 static void redraw_bot_win(void)
399 wmove(bot.win, 0, 0);
401 i = draw_top_rbe(&lines);
404 while (i > 0 && lines < bot.lines) {
405 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, --i);
408 waddstr(bot.win, "\n");
411 lines += NUM_LINES(rbe->len);
412 wattron(bot.win, COLOR_PAIR(rbe->color));
413 waddstr(bot.win, "\n");
414 waddstr(bot.win, rbe->msg);
420 static void rb_add_entry(int color, char *msg)
422 struct rb_entry *old, *new = para_malloc(sizeof(struct rb_entry));
425 new->len = strlen(msg);
427 old = ringbuffer_add(bot_win_rb, new);
428 // fprintf(stderr, "added: %s\n", new->msg);
433 if (scroll_position) {
434 /* discard current scrolling, like xterm does */
439 wattron(bot.win, COLOR_PAIR(color));
440 getyx(bot.win, y, x);
442 waddstr(bot.win, "\n");
443 waddstr(bot.win, msg);
447 * print formated output to bot win and refresh
449 __printf_2_3 static void outputf(int color, const char* fmt,...)
455 PARA_VSPRINTF(fmt, msg);
456 rb_add_entry(color, msg);
460 static void add_output_line(char *line)
464 rb_add_entry(COLOR_OUTPUT, para_strdup(line));
467 void para_log(int ll, const char *fmt,...)
472 if (ll < conf.loglevel_arg || !curses_active)
481 color = COLOR_ERRMSG;
483 PARA_VSPRINTF(fmt, msg);
485 rb_add_entry(color, msg);
489 static void setup_signal_handling(void)
491 signal_pipe = para_signal_init();
492 para_install_sighandler(SIGINT);
493 para_install_sighandler(SIGTERM);
494 para_install_sighandler(SIGCHLD);
495 para_install_sighandler(SIGWINCH);
496 para_install_sighandler(SIGUSR1);
497 signal(SIGPIPE, SIG_IGN);
498 signal(SIGHUP, SIG_IGN);
501 static void do_exit(int ret)
503 signal(SIGTERM, SIG_IGN);
508 static void shutdown_curses(void)
517 static void finish(int ret)
524 * exit curses and print given message to stdout/stderr
526 __printf_2_3 static void msg_n_exit(int ret, const char* fmt, ...)
529 FILE *outfd = ret? stderr: stdout;
533 vfprintf(outfd, fmt, argp);
538 static void print_welcome(void)
540 int ll = conf.loglevel_arg;
543 outputf(COLOR_WELCOME, "Welcome to para_gui " VERSION
544 " \"" CODENAME "\". Theme: %s", theme.name);
551 static void init_wins(int top_lines)
555 top.lines = top_lines;
560 bot.lines = LINES - top.lines - 3;
562 bot.begy = top.lines + 1;
577 sep.begy = top.lines;
580 assume_default_colors(theme.default_fg, theme.default_bg);
582 mvwin(top.win, top.begy, top.begx);
583 wresize(top.win, top.lines, top.cols);
585 mvwin(sb.win, sb.begy, sb.begx);
586 wresize(sb.win, sb.lines, sb.cols);
588 mvwin(sep.win, sep.begy, sep.begx);
589 wresize(sep.win, sep.lines, sep.cols);
591 mvwin(bot.win, bot.begy, bot.begx);
592 wresize(bot.win, bot.lines, bot.cols);
594 mvwin(in.win, in.begy, in.begx);
595 wresize(in.win, in.lines, in.cols);
597 sep.win = newwin(sep.lines, sep.cols, sep.begy, sep.begx);
598 top.win = newwin(top.lines, top.cols, top.begy, top.begx);
599 bot.win = newwin(bot.lines, bot.cols, bot.begy, bot.begx);
600 sb.win = newwin(sb.lines, sb.cols, sb.begy, sb.begx);
601 in.win = newwin(in.lines, in.cols, in.begy, in.begx);
602 if (!top.win || !bot.win || !sb.win || !in.win || !sep.win)
603 msg_n_exit(1, "Error: Cannot create curses windows\n");
607 scrollok(bot.win, 1);
608 wattron(sb.win, COLOR_PAIR(COLOR_STATUSBAR));
609 wattron(sep.win, COLOR_PAIR(COLOR_SEPARATOR));
610 wattron(bot.win, COLOR_PAIR(COLOR_BOT));
611 wattron(top.win, COLOR_PAIR(COLOR_TOP));
623 wmove(sep.win, 0, 0);
624 for (i = 1; i <= COLS; i++)
625 waddstr(sep.win, theme.sep_str);
628 wnoutrefresh(top.win);
629 wnoutrefresh(bot.win);
630 //wnoutrefresh(sb.win);
632 wnoutrefresh(in.win);
633 wnoutrefresh(sep.win);
637 static void check_geometry(void)
639 if (LINES < theme.lines_min || COLS < theme.cols_min)
640 msg_n_exit(EXIT_FAILURE, "Error: Terminal (%dx%d) too small"
641 " (need at least %dx%d)\n", COLS, LINES,
642 theme.cols_min, theme.lines_min);
646 * Print stat item #i to curses window
648 static void print_stat_item(int i)
651 struct stat_item_data d = theme.data[i];
652 char *c = stat_content[i];
654 if (!curses_active || !d.len || !c)
656 tmp = make_message("%s%s%s", d.prefix, c, d.postfix);
657 // PARA_DEBUG_LOG("%s: read: %s\n", __func__, tmp);
658 wmove(top.win, d.y * top.lines / 100, d.x * COLS / 100);
660 wattron(top.win, COLOR_PAIR(i + 1));
661 align_str(top.win, tmp, d.len * COLS / 100, d.align);
666 static void print_all_items(void)
672 for (i = 0; i < NUM_STAT_ITEMS; i++)
675 static void clear_all_items(void)
679 for (i = 0; i < NUM_STAT_ITEMS; i++) {
680 free(stat_content[i]);
681 stat_content[i] = para_strdup("");
685 static void init_colors(void)
689 msg_n_exit(EXIT_FAILURE, "Error: No color term\n");
691 for (i = 0; i < NUM_STAT_ITEMS; i++)
692 if (theme.data[i].len)
693 init_pair(i + 1, theme.data[i].fg, theme.data[i].bg);
694 init_pair(COLOR_STATUSBAR, theme.sb_fg, theme.sb_bg);
695 init_pair(COLOR_COMMAND, theme.cmd_fg, theme.cmd_bg);
696 init_pair(COLOR_OUTPUT, theme.output_fg, theme.output_bg);
697 init_pair(COLOR_MSG, theme.msg_fg, theme.msg_bg);
698 init_pair(COLOR_ERRMSG, theme.err_msg_fg, theme.err_msg_bg);
699 init_pair(COLOR_WELCOME, theme.welcome_fg, theme.welcome_bg);
700 init_pair(COLOR_SEPARATOR, theme.sep_fg, theme.sep_bg);
701 init_pair(COLOR_TOP, theme.default_fg, theme.default_bg);
702 init_pair(COLOR_BOT, theme.default_fg, theme.default_bg);
706 * (re-)initialize the curses library FIXME: Error checking
708 static void init_curses(void)
711 if (top.win && refresh() == ERR) { /* refesh is really needed */
712 msg_n_exit(EXIT_FAILURE, "refresh() failed\n");
715 curs_set(0); /* make cursor invisible, ignore errors */
716 // if (noraw() == ERR);
717 // msg_n_exit(EXIT_FAILURE, "can not place terminal out of "
719 nonl(); /* tell curses not to do NL->CR/NL on output */
720 noecho(); /* don't echo input */
721 cbreak(); /* take input chars one at a time, no wait for \n */
725 init_wins(theme.top_lines_default);
727 noecho(); /* don't echo input */
731 static void check_sigchld(void)
735 pid = para_reap_child();
738 if (pid == external_cmd_pid) {
739 external_cmd_pid = 0;
740 external_cmd_died = 1;
742 goto reap_next_child;
746 * print status line if line starts with known command.
748 static void check_stat_line(char *line)
752 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
753 i = stat_line_valid(line);
755 line += strlen(status_item_list[i]) + 1;
756 free(stat_content[i]);
757 stat_content[i] = para_strdup(line);
764 * This sucker modifies its first argument. *handler and *arg are
765 * pointers to 0-terminated strings (inside line). Crap.
767 static int split_key_map(char *line, char **handler, char **arg)
769 if (!(*handler = strchr(line + 1, ':')))
773 if (!(*arg = strchr(*handler, ':')))
782 static int check_key_map_args(void)
786 char *tmp = NULL, *handler, *arg;
788 for (i = 0; i < conf.key_map_given; ++i) {
789 s = conf.key_map_arg[i];
793 tmp = para_strdup(s);
794 if (!split_key_map(tmp, &handler, &arg))
796 if (strlen(handler) != 1)
805 if (find_cmd_byname(arg) < 0)
815 * React to various signal-related events
817 static void handle_signal(int sig)
821 msg_n_exit(EXIT_FAILURE,
822 "only the good die young (caught SIGTERM))\n");
832 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
833 /* Nothing to do. SIGINT killed our child, para_client stat.
834 * This get noticed by do_select which resets everything
838 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
847 static int open_audiod_pipe(void)
855 return para_open_audiod_pipe(conf.stat_cmd_arg);
859 * This is the core select loop. Besides the (internal) signal
860 * pipe, the following other fds are checked according to the mode:
862 * GETCH_MODE: check stdin, return when key is pressed
864 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
865 * of output has been read or when other end has closed command pipe or
866 * when any key is pressed.
868 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
869 * is running. During that thime curses is disabled. Returns when
870 * external_cmd_pid == 0.
872 static int do_select(int mode)
876 int max_fileno, cp_numread = 1;
877 char command_buf[STRINGSIZE] = "";
878 int cbo = 0; /* command buf offset */
881 tv.tv_sec = conf.timeout_arg / 1000;
882 tv.tv_usec = (conf.timeout_arg % 1000) * 1000;
883 // ret = refresh_status();
888 audiod_pipe = open_audiod_pipe();
889 if (audiod_pipe >= 0)
890 para_fd_set(audiod_pipe, &rfds, &max_fileno);
892 para_fd_set(signal_pipe, &rfds, &max_fileno);
893 /* command pipe only for COMMAND_MODE */
894 if (command_pipe >= 0 && mode == COMMAND_MODE)
895 para_fd_set(command_pipe, &rfds, &max_fileno);
897 para_fd_set(STDIN_FILENO, &rfds, &max_fileno);
898 ret = para_select(max_fileno + 1, &rfds, NULL, &tv);
899 // PARA_DEBUG_LOG("select returned %d\n", ret);
901 goto check_return; /* skip fd checks */
903 if (FD_ISSET(signal_pipe, &rfds)) {
904 int sig_nr = para_next_signal();
906 handle_signal(sig_nr);
908 /* read command pipe if ready */
909 if (command_pipe >= 0 && mode == COMMAND_MODE &&
910 FD_ISSET(command_pipe, &rfds)) {
911 cp_numread = read(command_pipe, command_buf + cbo,
912 STRINGSIZE - 1 - cbo);
917 PARA_ERROR_LOG("read error (%d)", cp_numread);
922 if (audiod_pipe >= 0 && FD_ISSET(audiod_pipe, &rfds))
923 if (read_audiod_pipe(audiod_pipe, check_stat_line) <= 0) {
927 free(stat_content[SI_STATUS_BAR]);
928 stat_content[SI_STATUS_BAR] =
929 para_strdup("audiod not running!?");
935 if (cp_numread <= 0 && !cbo) /* command complete */
938 cbo = for_each_line(command_buf, cbo, &add_output_line);
944 ret = wgetch(top.win);
945 if (ret != ERR && ret != KEY_RESIZE)
949 if (external_cmd_died) {
950 external_cmd_died = 0;
958 * read from command pipe and print data to bot window
960 static int send_output(void)
962 if (command_pipe < 0)
964 if (do_select(COMMAND_MODE) >= 0)
965 PARA_INFO_LOG("%s", "command complete");
967 PARA_NOTICE_LOG("%s", "command aborted");
968 print_in_bar(COLOR_MSG, " ");
972 static int client_cmd_cmdline(char *cmd)
975 int ret, fds[3] = {0, 1, 0};
976 char *c = make_message(BINDIR "/para_client %s", cmd);
978 outputf(COLOR_COMMAND, "%s", c);
979 print_in_bar(COLOR_MSG, "executing client command, hit q to abort\n");
980 ret = para_exec_cmdline_pid(&pid, c, fds);
984 command_pipe = fds[1];
985 return send_output();
989 * exec command and print output to bot win
991 static int display_cmd(char *cmd)
994 int fds[3] = {0, 1, 0};
996 print_in_bar(COLOR_MSG, "executing display command, hit q to abort");
997 outputf(COLOR_COMMAND, "%s", cmd);
998 if (para_exec_cmdline_pid(&pid, cmd, fds) < 0)
1000 command_pipe = fds[1];
1001 return send_output();
1005 * shutdown curses and stat pipe before executing external commands
1007 static int external_cmd(char *cmd)
1009 int fds[3] = {-1, -1, -1};
1011 if (external_cmd_pid)
1014 para_exec_cmdline_pid(&external_cmd_pid, cmd, fds);
1015 do_select(EXTERNAL_MODE);
1020 static void print_scroll_msg(void)
1022 unsigned lines_total, filled = ringbuffer_filled(bot_win_rb);
1023 int first_rbe = first_visible_rbe(&lines_total);
1024 print_in_bar(COLOR_MSG, "scrolled view: %d-%d/%d\n", filled - first_rbe,
1025 filled - scroll_position, ringbuffer_filled(bot_win_rb));
1028 static void com_page_down(void)
1031 int i = scroll_position;
1032 while (lines < bot.lines && --i > 0) {
1033 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
1036 lines += NUM_LINES(strlen(rbe->msg));
1039 scroll_position = i;
1044 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1047 static void com_page_up(void)
1050 int fvr = first_visible_rbe(&lines);
1051 if (fvr < 0 || fvr + 1 >= ringbuffer_filled(bot_win_rb)) {
1052 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1055 scroll_position = fvr + 1;
1056 for (; scroll_position > 0; scroll_position--) {
1057 fvr = first_visible_rbe(&lines);
1058 if (lines == bot.lines)
1065 static void com_scroll_down(void)
1067 struct rb_entry *rbe;
1070 if (!scroll_position) {
1071 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1075 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1076 rbe_lines = NUM_LINES(rbe->len);
1077 wscrl(bot.win, rbe_lines);
1078 wmove(bot.win, bot.lines - rbe_lines, 0);
1079 wattron(bot.win, COLOR_PAIR(rbe->color));
1080 waddstr(bot.win, rbe->msg);
1085 static void com_scroll_up(void)
1087 struct rb_entry *rbe = NULL;
1089 int i, first_rbe, scroll;
1091 /* the entry that is going to vanish */
1092 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1095 scroll = NUM_LINES(rbe->len);
1096 first_rbe = first_visible_rbe(&lines);
1097 if (first_rbe < 0 || (first_rbe == ringbuffer_filled(bot_win_rb) - 1))
1100 wscrl(bot.win, -scroll);
1101 i = draw_top_rbe(&lines);
1104 while (i > 0 && lines < scroll) {
1106 rbe = ringbuffer_get(bot_win_rb, --i);
1109 rbe_lines = NUM_LINES(rbe->len);
1111 // fprintf(stderr, "msg: %s\n", rbe->msg);
1112 wattron(bot.win, COLOR_PAIR(rbe->color));
1113 waddstr(bot.win, "\n");
1114 waddstr(bot.win, rbe->msg);
1123 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1126 static void com_ll_decr(void)
1128 if (conf.loglevel_arg <= DEBUG) {
1129 print_in_bar(COLOR_ERRMSG,
1130 "loglevel already at maximal verbosity\n");
1133 conf.loglevel_arg--;
1134 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1137 static void com_ll_incr(void)
1139 if (conf.loglevel_arg >= EMERG) {
1140 print_in_bar(COLOR_ERRMSG,
1141 "loglevel already at miminal verbosity\n");
1144 conf.loglevel_arg++;
1145 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1149 * reread configuration, terminate on errors
1151 static void com_reread_conf(void)
1153 char *cf =configfile_exists();
1156 PARA_WARNING_LOG("%s", "there is no configuration to read");
1159 PARA_INFO_LOG("%s", "rereading command line options and config file");
1160 cmdline_parser(_argc, _argv, &conf);
1161 cmdline_parser_configfile(cf, &conf, 1, 1, 0);
1162 PARA_NOTICE_LOG("%s", "configuration read");
1163 if (check_key_map_args() < 0)
1164 finish(EXIT_FAILURE);
1167 static void com_help(void)
1171 for (i = 0; i < conf.key_map_given; ++i) {
1172 char *handler, *arg, *tmp = para_strdup(conf.key_map_arg[i]);
1173 const char *handler_text = "???", *desc = NULL;
1175 if (!split_key_map(tmp, &handler, &arg)) {
1181 handler_text = "internal";
1182 desc = command_list[find_cmd_byname(arg)].description;
1184 case 'x': handler_text = "external"; break;
1185 case 'd': handler_text = "display "; break;
1186 case 'p': handler_text = "para "; break;
1188 outputf(COLOR_MSG, "%s\t%s\t%s%s\t%s", tmp, handler_text, arg,
1189 strlen(arg) < 8? "\t" : "",
1193 for (i = 0; command_list[i].handler; i++) {
1194 struct gui_command gc = command_list[i];
1196 outputf(COLOR_MSG, "%s\tinternal\t%s\t%s%s", gc.key, gc.name,
1197 strlen(gc.name) < 8? "\t" : "",
1200 print_in_bar(COLOR_MSG, "try \"para_gui -h\" or \"para_client help\" "
1204 static void com_shrink_top_win(void)
1206 if (top.lines <= theme.top_lines_min) {
1207 PARA_WARNING_LOG("%s", "can not decrease top window");
1210 init_wins(top.lines - 1);
1213 print_in_bar(COLOR_MSG, "%s", "decreased top window");
1216 static void com_enlarge_top_win(void)
1218 if (bot.lines < 3) {
1219 PARA_WARNING_LOG("%s", "can not increase top window");
1222 init_wins(top.lines + 1);
1225 print_in_bar(COLOR_MSG, "increased top window");
1228 static void com_version(void)
1230 print_in_bar(COLOR_MSG, "para_gui " VERSION " \"" CODENAME "\"");
1233 static void com_quit(void)
1238 static void com_refresh(void)
1244 static void change_theme(int next)
1250 /* This seems to be needed twice, why? */
1253 PARA_NOTICE_LOG("new theme: %s", theme.name);
1256 static void com_next_theme(void)
1261 static void com_prev_theme(void)
1267 static void handle_command(int c)
1271 /* first check user's key bindings */
1272 for (i = 0; i < conf.key_map_given; ++i) {
1273 char tmp[MAXLINE], *handler, *arg;
1275 strcpy(tmp, conf.key_map_arg[i]);
1276 if (!split_key_map(tmp, &handler, &arg))
1278 if (!strcmp(tmp, km_keyname(c))) {
1279 if (*handler == 'd') {
1283 if (*handler == 'x') {
1287 if (*handler == 'p') {
1288 client_cmd_cmdline(arg);
1291 if (*handler == 'i') {
1292 int num = find_cmd_byname(arg);
1294 command_list[num].handler();
1299 /* not found, check internal key bindings */
1300 for (i = 0; command_list[i].handler; i++) {
1301 if (!strcmp(km_keyname(c), command_list[i].key)) {
1302 command_list[i].handler();
1306 print_in_bar(COLOR_ERRMSG, "key '%s' is not bound, press ? for help",
1310 int main(int argc, char *argv[])
1318 if (cmdline_parser(argc, argv, &conf)) {
1319 fprintf(stderr, "parse error while reading command line\n");
1322 init_theme(0, &theme);
1323 top.lines = theme.top_lines_default;
1324 if (check_key_map_args() < 0) {
1325 fprintf(stderr, "invalid key map\n");
1328 cf = configfile_exists();
1329 if (!cf && conf.config_file_given) {
1330 fprintf(stderr, "can not read config file %s\n",
1331 conf.config_file_arg);
1335 cmdline_parser_configfile(cf, &conf, 0, 0, 0);
1336 if (check_key_map_args() < 0) {
1337 fprintf(stderr, "invalid key map in config file\n");
1340 setup_signal_handling();
1341 bot_win_rb = ringbuffer_new(RINGBUFFER_SIZE);
1342 initscr(); /* needed only once, always successful */
1347 ret = do_select(GETCH_MODE);
1350 print_in_bar(COLOR_MSG, " ");
1351 handle_command(ret);