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"
27 extern const char *status_item_list[NUM_STAT_ITEMS];
28 static char *stat_content[NUM_STAT_ITEMS];
30 #define STANDARD_STATUS_BAR "para_gui " VERSION " (hit ? for help)"
32 static int signal_pipe;
34 static void finish(int sig);
36 static struct win_data {
42 } top, bot, sb, in, sep;
44 #define RINGBUFFER_SIZE 512
51 #define NUM_LINES(len) (1 + (len) / bot.cols)
53 static unsigned scroll_position;
55 static int external_cmd_died, curses_active;
56 static pid_t external_cmd_pid;
58 static int command_pipe = -1;
59 static int audiod_pipe = -1;
60 static struct gengetopt_args_info conf;
62 enum {GETCH_MODE, COMMAND_MODE, EXTERNAL_MODE};
65 #define COLOR_STATUSBAR 32
66 #define COLOR_COMMAND 33
67 #define COLOR_OUTPUT 34
69 #define COLOR_ERRMSG 36
70 #define COLOR_WELCOME 37
71 #define COLOR_SEPARATOR 38
79 void (*handler)(void);
85 char postfix[MAXLINE];
91 char content[MAXLINE];
94 static struct gui_theme theme;
99 static void com_help(void);
100 static void com_reread_conf(void);
101 static void com_enlarge_top_win(void);
102 static void com_shrink_top_win(void);
103 static void com_version(void);
104 static void com_quit(void);
105 static void com_refresh(void);
106 static void com_ll_incr(void);
107 static void com_ll_decr(void);
108 static void com_prev_theme(void);
109 static void com_next_theme(void);
110 static void com_scroll_up(void);
111 static void com_scroll_down(void);
112 static void com_page_up(void);
113 static void com_page_down(void);
115 struct gui_command command_list[] = {
119 .description = "print help",
123 .name = "enlarge_win",
124 .description = "enlarge the top window",
125 .handler = com_enlarge_top_win
128 .name = "shrink_win",
129 .description = "shrink the top window",
130 .handler = com_shrink_top_win
133 .name = "reread_conf",
134 .description = "reread configuration file",
135 .handler = com_reread_conf
139 .description = "exit para_gui",
144 .description = "redraw the screen",
145 .handler = com_refresh
148 .name = "next_theme",
149 .description = "switch to next theme",
150 .handler = com_next_theme
153 .name = "prev_theme",
154 .description = "switch to previous stream",
155 .handler = com_prev_theme
159 .description = "increase loglevel (decreases verbosity)",
160 .handler = com_ll_incr
164 .description = "decrease loglevel (increases verbosity)",
165 .handler = com_ll_decr
169 .description = "show the para_gui version",
170 .handler = com_version
174 .description = "scroll up one line",
175 .handler = com_scroll_up
178 .name = "scroll_down",
179 .description = "scroll down one line",
180 .handler = com_scroll_down
184 .description = "scroll up one page",
185 .handler = com_page_up
189 .description = "scroll down one page",
190 .handler = com_page_down
196 static int find_cmd_byname(char *name)
200 for (i = 0; command_list[i].handler; i++)
201 if (!strcmp(command_list[i].name, name))
206 /* taken from mutt */
207 static char *km_keyname(int c)
212 sprintf(buf, "<up>");
216 sprintf(buf, "<down>");
220 sprintf(buf, "<left>");
223 if (c == KEY_RIGHT) {
224 sprintf(buf, "<right>");
227 if (c == KEY_NPAGE) {
228 sprintf(buf, "<npage>");
231 if (c == KEY_PPAGE) {
232 sprintf(buf, "<ppage>");
235 if (c < 256 && c > -128 && iscntrl((unsigned char) c)) {
240 buf[1] = (c + '@') & 0x7f;
243 snprintf(buf, sizeof(buf), "\\%d%d%d", c >> 6,
244 (c >> 3) & 7, c & 7);
245 } else if (c >= KEY_F0 && c < KEY_F(256))
246 sprintf(buf, "<F%d>", c - KEY_F0);
248 snprintf(buf, sizeof(buf), "%c", (unsigned char) c);
250 snprintf(buf, sizeof(buf), "\\x%hx", (unsigned short) c);
254 static char *configfile_exists(void)
256 static char *config_file;
259 if (!conf.config_file_given) {
261 char *home = para_homedir();
262 config_file = make_message("%s/.paraslash/gui.conf",
268 tmp = conf.config_file_arg;
269 return file_exists(tmp)? tmp: NULL;
273 * print num spaces to curses window
275 static void add_spaces(WINDOW* win, unsigned int num)
284 * print aligned string to curses window. This function always prints
287 static int align_str(WINDOW* win, char *string, unsigned int len,
290 int num; /* of spaces */
295 num = len - strlen(string);
296 str = para_strdup(string);
303 add_spaces(win, num);
304 } else if (align == RIGHT) {
305 add_spaces(win, num);
308 add_spaces(win, num / 2);
309 waddstr(win, str[0]? str: "");
310 add_spaces(win, num - num / 2);
316 __printf_2_3 static void print_in_bar(int color, char *fmt,...)
322 wattron(in.win, COLOR_PAIR(color));
323 PARA_VSPRINTF(fmt, msg);
325 align_str(in.win, msg, sb.cols, LEFT);
331 * update the status bar
333 static void print_status_bar(void)
338 align_str(sb.win,STANDARD_STATUS_BAR, sb.cols, CENTER);
343 * get the number of the oldest rbe that is (partially) visible. On return,
344 * lines contains the sum of the number of lines of all visable entries. If the
345 * first one is only partially visible, lines is greater than bot.lines.
347 static int first_visible_rbe(unsigned *lines)
351 for (i = scroll_position; i < RINGBUFFER_SIZE; i++) {
352 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
356 // fprintf(stderr, "found: %s\n", rbe->msg);
357 rbe_lines = NUM_LINES(rbe->len);
358 if (rbe_lines > bot.lines)
361 if (*lines >= bot.lines)
364 return RINGBUFFER_SIZE - 1;
367 static int draw_top_rbe(unsigned *lines)
370 int offset, fvr = first_visible_rbe(lines);
371 struct rb_entry *rbe;
375 wmove(bot.win, 0, 0);
376 rbe = ringbuffer_get(bot_win_rb, fvr);
379 /* first rbe might be only partially visible */
380 offset = (*lines - bot.lines) * bot.cols;
381 len = strlen(rbe->msg);
382 if (offset < 0 || len < offset)
384 wattron(bot.win, COLOR_PAIR(rbe->color));
385 waddstr(bot.win, rbe->msg + offset);
386 *lines = NUM_LINES(len - offset);
390 static void redraw_bot_win(void)
395 wmove(bot.win, 0, 0);
397 i = draw_top_rbe(&lines);
400 while (i > 0 && lines < bot.lines) {
401 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, --i);
404 waddstr(bot.win, "\n");
407 lines += NUM_LINES(rbe->len);
408 wattron(bot.win, COLOR_PAIR(rbe->color));
409 waddstr(bot.win, "\n");
410 waddstr(bot.win, rbe->msg);
416 static void rb_add_entry(int color, char *msg)
418 struct rb_entry *old, *new = para_malloc(sizeof(struct rb_entry));
421 new->len = strlen(msg);
423 old = ringbuffer_add(bot_win_rb, new);
424 // fprintf(stderr, "added: %s\n", new->msg);
429 if (scroll_position) {
430 /* discard current scrolling, like xterm does */
435 wattron(bot.win, COLOR_PAIR(color));
436 getyx(bot.win, y, x);
438 waddstr(bot.win, "\n");
439 waddstr(bot.win, msg);
443 * print formated output to bot win and refresh
445 __printf_2_3 static void outputf(int color, char* fmt,...)
451 PARA_VSPRINTF(fmt, msg);
452 rb_add_entry(color, msg);
456 static void add_output_line(char *line)
460 rb_add_entry(COLOR_OUTPUT, para_strdup(line));
463 void para_log(int ll, char *fmt,...)
468 if (ll < conf.loglevel_arg || !curses_active)
477 color = COLOR_ERRMSG;
479 PARA_VSPRINTF(fmt, msg);
481 rb_add_entry(color, msg);
485 static void setup_signal_handling(void)
487 signal_pipe = para_signal_init();
488 para_install_sighandler(SIGINT);
489 para_install_sighandler(SIGTERM);
490 para_install_sighandler(SIGCHLD);
491 para_install_sighandler(SIGWINCH);
492 para_install_sighandler(SIGUSR1);
493 signal(SIGPIPE, SIG_IGN);
494 signal(SIGHUP, SIG_IGN);
497 static void do_exit(int ret)
499 signal(SIGTERM, SIG_IGN);
504 static void shutdown_curses(void)
513 static void finish(int ret)
520 * exit curses and print given message to stdout/stderr
522 __printf_2_3 static void msg_n_exit(int ret, char* fmt, ...)
525 FILE *outfd = ret? stderr: stdout;
529 vfprintf(outfd, fmt, argp);
534 static void print_welcome(void)
536 int ll = conf.loglevel_arg;
539 outputf(COLOR_WELCOME, "Welcome to para_gui " VERSION
540 " \"" CODENAME "\". Theme: %s", theme.name);
547 static void init_wins(int top_lines)
551 top.lines = top_lines;
556 bot.lines = LINES - top.lines - 3;
558 bot.begy = top.lines + 1;
573 sep.begy = top.lines;
576 assume_default_colors(theme.default_fg, theme.default_bg);
578 mvwin(top.win, top.begy, top.begx);
579 wresize(top.win, top.lines, top.cols);
581 mvwin(sb.win, sb.begy, sb.begx);
582 wresize(sb.win, sb.lines, sb.cols);
584 mvwin(sep.win, sep.begy, sep.begx);
585 wresize(sep.win, sep.lines, sep.cols);
587 mvwin(bot.win, bot.begy, bot.begx);
588 wresize(bot.win, bot.lines, bot.cols);
590 mvwin(in.win, in.begy, in.begx);
591 wresize(in.win, in.lines, in.cols);
593 sep.win = newwin(sep.lines, sep.cols, sep.begy, sep.begx);
594 top.win = newwin(top.lines, top.cols, top.begy, top.begx);
595 bot.win = newwin(bot.lines, bot.cols, bot.begy, bot.begx);
596 sb.win = newwin(sb.lines, sb.cols, sb.begy, sb.begx);
597 in.win = newwin(in.lines, in.cols, in.begy, in.begx);
598 if (!top.win || !bot.win || !sb.win || !in.win || !sep.win)
599 msg_n_exit(1, "Error: Cannot create curses windows\n");
603 scrollok(bot.win, 1);
604 wattron(sb.win, COLOR_PAIR(COLOR_STATUSBAR));
605 wattron(sep.win, COLOR_PAIR(COLOR_SEPARATOR));
606 wattron(bot.win, COLOR_PAIR(COLOR_BOT));
607 wattron(top.win, COLOR_PAIR(COLOR_TOP));
619 wmove(sep.win, 0, 0);
620 for (i = 1; i <= COLS; i++)
621 waddstr(sep.win, theme.sep_str);
624 wnoutrefresh(top.win);
625 wnoutrefresh(bot.win);
626 //wnoutrefresh(sb.win);
628 wnoutrefresh(in.win);
629 wnoutrefresh(sep.win);
633 static void check_geometry(void)
635 if (LINES < theme.lines_min || COLS < theme.cols_min)
636 msg_n_exit(EXIT_FAILURE, "Error: Terminal (%dx%d) too small"
637 " (need at least %dx%d)\n", COLS, LINES,
638 theme.cols_min, theme.lines_min);
642 * Print stat item #i to curses window
644 static void print_stat_item(int i)
647 struct stat_item_data d = theme.data[i];
648 char *c = stat_content[i];
650 if (!curses_active || !d.len || !c)
652 tmp = make_message("%s%s%s", d.prefix, c, d.postfix);
653 // PARA_DEBUG_LOG("%s: read: %s\n", __func__, tmp);
654 wmove(top.win, d.y * top.lines / 100, d.x * COLS / 100);
656 wattron(top.win, COLOR_PAIR(i + 1));
657 align_str(top.win, tmp, d.len * COLS / 100, d.align);
662 static void print_all_items(void)
668 for (i = 0; i < NUM_STAT_ITEMS; i++)
671 static void clear_all_items(void)
675 for (i = 0; i < NUM_STAT_ITEMS; i++) {
676 free(stat_content[i]);
677 stat_content[i] = para_strdup("");
681 static void init_colors(void)
685 msg_n_exit(EXIT_FAILURE, "Error: No color term\n");
687 for (i = 0; i < NUM_STAT_ITEMS; i++)
688 if (theme.data[i].len)
689 init_pair(i + 1, theme.data[i].fg, theme.data[i].bg);
690 init_pair(COLOR_STATUSBAR, theme.sb_fg, theme.sb_bg);
691 init_pair(COLOR_COMMAND, theme.cmd_fg, theme.cmd_bg);
692 init_pair(COLOR_OUTPUT, theme.output_fg, theme.output_bg);
693 init_pair(COLOR_MSG, theme.msg_fg, theme.msg_bg);
694 init_pair(COLOR_ERRMSG, theme.err_msg_fg, theme.err_msg_bg);
695 init_pair(COLOR_WELCOME, theme.welcome_fg, theme.welcome_bg);
696 init_pair(COLOR_SEPARATOR, theme.sep_fg, theme.sep_bg);
697 init_pair(COLOR_TOP, theme.default_fg, theme.default_bg);
698 init_pair(COLOR_BOT, theme.default_fg, theme.default_bg);
702 * (re-)initialize the curses library FIXME: Error checking
704 static void init_curses(void)
707 if (top.win && refresh() == ERR) { /* refesh is really needed */
708 msg_n_exit(EXIT_FAILURE, "refresh() failed\n");
711 curs_set(0); /* make cursor invisible, ignore errors */
712 // if (noraw() == ERR);
713 // msg_n_exit(EXIT_FAILURE, "can not place terminal out of "
715 nonl(); /* tell curses not to do NL->CR/NL on output */
716 noecho(); /* don't echo input */
717 cbreak(); /* take input chars one at a time, no wait for \n */
721 init_wins(theme.top_lines_default);
723 noecho(); /* don't echo input */
727 static void check_sigchld(void)
731 pid = para_reap_child();
734 if (pid == external_cmd_pid) {
735 external_cmd_pid = 0;
736 external_cmd_died = 1;
738 goto reap_next_child;
742 * print status line if line starts with known command.
744 static void check_stat_line(char *line)
748 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
749 i = stat_line_valid(line);
751 line += strlen(status_item_list[i]) + 1;
752 free(stat_content[i]);
753 stat_content[i] = para_strdup(line);
760 * This sucker modifies its first argument. *handler and *arg are
761 * pointers to 0-terminated strings (inside line). Crap.
763 static int split_key_map(char *line, char **handler, char **arg)
765 if (!(*handler = strchr(line + 1, ':')))
769 if (!(*arg = strchr(*handler, ':')))
778 static int check_key_map_args(void)
782 char *tmp = NULL, *handler, *arg;
784 for (i = 0; i < conf.key_map_given; ++i) {
785 s = conf.key_map_arg[i];
789 tmp = para_strdup(s);
790 if (!split_key_map(tmp, &handler, &arg))
792 if (strlen(handler) != 1)
801 if (find_cmd_byname(arg) < 0)
811 * React to various signal-related events
813 static void handle_signal(int sig)
817 msg_n_exit(EXIT_FAILURE,
818 "only the good die young (caught SIGTERM))\n");
828 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
829 /* Nothing to do. SIGINT killed our child, para_client stat.
830 * This get noticed by do_select which resets everything
834 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
843 static int open_audiod_pipe(void)
851 return para_open_audiod_pipe(conf.stat_cmd_arg);
855 * This is the core select loop. Besides the (internal) signal
856 * pipe, the following other fds are checked according to the mode:
858 * GETCH_MODE: check stdin, return when key is pressed
860 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
861 * of output has been read or when other end has closed command pipe or
862 * when any key is pressed.
864 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
865 * is running. During that thime curses is disabled. Returns when
866 * external_cmd_pid == 0.
868 static int do_select(int mode)
872 int max_fileno, cp_numread = 1;
873 char command_buf[STRINGSIZE] = "";
874 int cbo = 0; /* command buf offset */
877 tv.tv_sec = conf.timeout_arg / 1000;
878 tv.tv_usec = (conf.timeout_arg % 1000) * 1000;
879 // ret = refresh_status();
884 audiod_pipe = open_audiod_pipe();
885 if (audiod_pipe >= 0) {
886 FD_SET(audiod_pipe, &rfds);
887 max_fileno = MAX(max_fileno, audiod_pipe);
891 FD_SET(signal_pipe, &rfds);
892 max_fileno = MAX(max_fileno, signal_pipe);
893 /* command pipe only for COMMAND_MODE */
894 if (command_pipe >= 0 && mode == COMMAND_MODE) {
895 FD_SET(command_pipe, &rfds);
896 max_fileno = MAX(max_fileno, command_pipe);
898 FD_SET(STDIN_FILENO, &rfds);
899 ret = select(max_fileno + 1, &rfds, NULL, NULL, &tv);
900 // PARA_DEBUG_LOG("select returned %d\n", ret);
903 if (FD_ISSET(signal_pipe, &rfds)) {
904 int sig_nr = para_next_signal();
906 handle_signal(sig_nr);
909 goto check_return; /* skip fd checks */
910 /* read command pipe if ready */
911 if (command_pipe >= 0 && mode == COMMAND_MODE &&
912 FD_ISSET(command_pipe, &rfds)) {
913 cp_numread = read(command_pipe, command_buf + cbo,
914 STRINGSIZE - 1 - cbo);
919 PARA_ERROR_LOG("read error (%d)", cp_numread);
924 if (audiod_pipe >= 0 && FD_ISSET(audiod_pipe, &rfds))
925 if (read_audiod_pipe(audiod_pipe, check_stat_line) <= 0) {
929 free(stat_content[SI_STATUS_BAR]);
930 stat_content[SI_STATUS_BAR] =
931 para_strdup("audiod not running!?");
937 if (cp_numread <= 0 && !cbo) /* command complete */
940 cbo = for_each_line(command_buf, cbo, &add_output_line);
946 ret = wgetch(top.win);
947 if (ret != ERR && ret != KEY_RESIZE)
951 if (external_cmd_died) {
952 external_cmd_died = 0;
960 * read from command pipe and print data to bot window
962 static int send_output(void)
964 if (command_pipe < 0)
966 if (do_select(COMMAND_MODE) >= 0)
967 PARA_INFO_LOG("%s", "command complete");
969 PARA_NOTICE_LOG("%s", "command aborted");
970 print_in_bar(COLOR_MSG, " ");
974 static int client_cmd_cmdline(char *cmd)
977 int ret, fds[3] = {0, 1, 0};
978 char *c = make_message(BINDIR "/para_client %s", cmd);
980 outputf(COLOR_COMMAND, "%s", c);
981 print_in_bar(COLOR_MSG, "executing client command, hit q to abort\n");
982 ret = para_exec_cmdline_pid(&pid, c, fds);
986 command_pipe = fds[1];
987 return send_output();
991 * exec command and print output to bot win
993 static int display_cmd(char *cmd)
996 int fds[3] = {0, 1, 0};
998 print_in_bar(COLOR_MSG, "executing display command, hit q to abort");
999 outputf(COLOR_COMMAND, "%s", cmd);
1000 if (para_exec_cmdline_pid(&pid, cmd, fds) < 0)
1002 command_pipe = fds[1];
1003 return send_output();
1007 * shutdown curses and stat pipe before executing external commands
1009 static int external_cmd(char *cmd)
1011 int fds[3] = {-1, -1, -1};
1013 if (external_cmd_pid)
1016 para_exec_cmdline_pid(&external_cmd_pid, cmd, fds);
1017 do_select(EXTERNAL_MODE);
1022 static void print_scroll_msg(void)
1024 unsigned lines_total, filled = ringbuffer_filled(bot_win_rb);
1025 int first_rbe = first_visible_rbe(&lines_total);
1026 print_in_bar(COLOR_MSG, "scrolled view: %d-%d/%d\n", filled - first_rbe,
1027 filled - scroll_position, ringbuffer_filled(bot_win_rb));
1030 static void com_page_down(void)
1033 int i = scroll_position;
1034 while (lines < bot.lines && --i > 0) {
1035 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
1038 lines += NUM_LINES(strlen(rbe->msg));
1041 scroll_position = i;
1046 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1049 static void com_page_up(void)
1052 int fvr = first_visible_rbe(&lines);
1053 if (fvr < 0 || fvr + 1 >= ringbuffer_filled(bot_win_rb)) {
1054 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1057 scroll_position = fvr + 1;
1058 for (; scroll_position > 0; scroll_position--) {
1059 fvr = first_visible_rbe(&lines);
1060 if (lines == bot.lines)
1067 static void com_scroll_down(void)
1069 struct rb_entry *rbe;
1072 if (!scroll_position) {
1073 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1077 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1078 rbe_lines = NUM_LINES(rbe->len);
1079 wscrl(bot.win, rbe_lines);
1080 wmove(bot.win, bot.lines - rbe_lines, 0);
1081 wattron(bot.win, COLOR_PAIR(rbe->color));
1082 waddstr(bot.win, rbe->msg);
1087 static void com_scroll_up(void)
1089 struct rb_entry *rbe = NULL;
1091 int i, first_rbe, scroll;
1093 /* the entry that is going to vanish */
1094 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1097 scroll = NUM_LINES(rbe->len);
1098 first_rbe = first_visible_rbe(&lines);
1099 if (first_rbe < 0 || (first_rbe == ringbuffer_filled(bot_win_rb) - 1))
1102 wscrl(bot.win, -scroll);
1103 i = draw_top_rbe(&lines);
1106 while (i > 0 && lines < scroll) {
1108 rbe = ringbuffer_get(bot_win_rb, --i);
1111 rbe_lines = NUM_LINES(rbe->len);
1113 // fprintf(stderr, "msg: %s\n", rbe->msg);
1114 wattron(bot.win, COLOR_PAIR(rbe->color));
1115 waddstr(bot.win, "\n");
1116 waddstr(bot.win, rbe->msg);
1125 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1128 static void com_ll_decr(void)
1130 if (conf.loglevel_arg <= DEBUG) {
1131 print_in_bar(COLOR_ERRMSG,
1132 "loglevel already at maximal verbosity\n");
1135 conf.loglevel_arg--;
1136 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1139 static void com_ll_incr(void)
1141 if (conf.loglevel_arg >= EMERG) {
1142 print_in_bar(COLOR_ERRMSG,
1143 "loglevel already at miminal verbosity\n");
1146 conf.loglevel_arg++;
1147 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1151 * reread configuration, terminate on errors
1153 static void com_reread_conf(void)
1155 char *cf =configfile_exists();
1158 PARA_WARNING_LOG("%s", "there is no configuration to read");
1161 PARA_INFO_LOG("%s", "rereading command line options and config file");
1162 cmdline_parser(_argc, _argv, &conf);
1163 cmdline_parser_configfile(cf, &conf, 1, 1, 0);
1164 PARA_NOTICE_LOG("%s", "configuration read");
1165 if (check_key_map_args() < 0)
1166 finish(EXIT_FAILURE);
1169 static void com_help(void)
1173 for (i = 0; i < conf.key_map_given; ++i) {
1174 char *s = conf.key_map_arg[i], *handler, *arg,
1175 *desc = "", tmp[MAXLINE];
1178 if (!split_key_map(tmp, &handler, &arg))
1182 handler = "internal";
1183 desc = command_list[find_cmd_byname(arg)].description;
1185 case 'x': handler = "external"; break;
1186 case 'd': handler = "display "; break;
1187 case 'p': handler = "para "; break;
1189 outputf(COLOR_MSG, "%s\t%s\t%s%s\t%s", tmp, handler, arg,
1190 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\" "
1205 static void com_shrink_top_win(void)
1207 if (top.lines <= theme.top_lines_min) {
1208 PARA_WARNING_LOG("%s", "can not decrease top window");
1211 init_wins(top.lines - 1);
1214 print_in_bar(COLOR_MSG, "%s", "decreased top window");
1217 static void com_enlarge_top_win(void)
1219 if (bot.lines < 3) {
1220 PARA_WARNING_LOG("%s", "can not increase top window");
1223 init_wins(top.lines + 1);
1226 print_in_bar(COLOR_MSG, "increased top window");
1229 static void com_version(void)
1231 print_in_bar(COLOR_MSG, "para_gui " VERSION " \"" CODENAME "\"");
1234 static void com_quit(void)
1239 static void com_refresh(void)
1245 static void change_theme(int next)
1251 /* This seems to be needed twice, why? */
1254 PARA_NOTICE_LOG("new theme: %s", theme.name);
1257 static void com_next_theme(void)
1262 static void com_prev_theme(void)
1268 static void handle_command(int c)
1272 /* first check user's key bindings */
1273 for (i = 0; i < conf.key_map_given; ++i) {
1274 char tmp[MAXLINE], *handler, *arg;
1276 strcpy(tmp, conf.key_map_arg[i]);
1277 if (!split_key_map(tmp, &handler, &arg))
1279 if (!strcmp(tmp, km_keyname(c))) {
1280 if (*handler == 'd') {
1284 if (*handler == 'x') {
1288 if (*handler == 'p') {
1289 client_cmd_cmdline(arg);
1292 if (*handler == 'i') {
1293 int num = find_cmd_byname(arg);
1295 command_list[num].handler();
1300 /* not found, check internal key bindings */
1301 for (i = 0; command_list[i].handler; i++) {
1302 if (!strcmp(km_keyname(c), command_list[i].key)) {
1303 command_list[i].handler();
1307 print_in_bar(COLOR_ERRMSG, "key '%s' is not bound, press ? for help",
1311 int main(int argc, char *argv[])
1319 if (cmdline_parser(argc, argv, &conf)) {
1320 fprintf(stderr, "parse error while reading command line\n");
1323 init_theme(0, &theme);
1324 top.lines = theme.top_lines_default;
1325 if (check_key_map_args() < 0) {
1326 fprintf(stderr, "invalid key map\n");
1329 cf = configfile_exists();
1330 if (!cf && conf.config_file_given) {
1331 fprintf(stderr, "can not read config file %s\n",
1332 conf.config_file_arg);
1336 cmdline_parser_configfile(cf, &conf, 0, 0, 0);
1337 if (check_key_map_args() < 0) {
1338 fprintf(stderr, "invalid key map in config file\n");
1341 setup_signal_handling();
1342 bot_win_rb = ringbuffer_new(RINGBUFFER_SIZE);
1343 initscr(); /* needed only once, always successful */
1348 ret = do_select(GETCH_MODE);
1351 print_in_bar(COLOR_MSG, " ");
1352 handle_command(ret);