9ad5aa985703c8371eb15e5cc2f94a3c7a64ad01
2 * Copyright (C) 1998-2007 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"
30 /** define the array of error lists needed by para_gui */
32 extern const char *status_item_list
[NUM_STAT_ITEMS
];
33 static char *stat_content
[NUM_STAT_ITEMS
];
35 #define STANDARD_STATUS_BAR "para_gui " PACKAGE_VERSION " (hit ? for help)"
37 static int signal_pipe
;
39 static void finish(int sig
);
41 static struct win_data
{
47 } top
, bot
, sb
, in
, sep
;
49 #define RINGBUFFER_SIZE 512
56 #define NUM_LINES(len) (1 + (len) / bot.cols)
58 static unsigned scroll_position
;
60 static int cmd_died
, curses_active
;
63 static int command_pipe
= -1;
64 static int audiod_pipe
= -1;
65 static struct gui_args_info conf
;
67 enum {GETCH_MODE
, COMMAND_MODE
, EXTERNAL_MODE
};
70 #define COLOR_STATUSBAR 32
71 #define COLOR_COMMAND 33
72 #define COLOR_OUTPUT 34
74 #define COLOR_ERRMSG 36
75 #define COLOR_WELCOME 37
76 #define COLOR_SEPARATOR 38
83 const char *description
;
84 void (*handler
)(void);
90 char postfix
[MAXLINE
];
96 char content
[MAXLINE
];
99 static struct gui_theme theme
;
104 static void com_help(void);
105 static void com_reread_conf(void);
106 static void com_enlarge_top_win(void);
107 static void com_shrink_top_win(void);
108 static void com_version(void);
109 static void com_quit(void);
110 static void com_refresh(void);
111 static void com_ll_incr(void);
112 static void com_ll_decr(void);
113 static void com_prev_theme(void);
114 static void com_next_theme(void);
115 static void com_scroll_up(void);
116 static void com_scroll_down(void);
117 static void com_page_up(void);
118 static void com_page_down(void);
120 struct gui_command command_list
[] = {
124 .description
= "print help",
128 .name
= "enlarge_win",
129 .description
= "enlarge the top window",
130 .handler
= com_enlarge_top_win
133 .name
= "shrink_win",
134 .description
= "shrink the top window",
135 .handler
= com_shrink_top_win
138 .name
= "reread_conf",
139 .description
= "reread configuration file",
140 .handler
= com_reread_conf
144 .description
= "exit para_gui",
149 .description
= "redraw the screen",
150 .handler
= com_refresh
153 .name
= "next_theme",
154 .description
= "switch to next theme",
155 .handler
= com_next_theme
158 .name
= "prev_theme",
159 .description
= "switch to previous stream",
160 .handler
= com_prev_theme
164 .description
= "increase loglevel (decreases verbosity)",
165 .handler
= com_ll_incr
169 .description
= "decrease loglevel (increases verbosity)",
170 .handler
= com_ll_decr
174 .description
= "show the para_gui version",
175 .handler
= com_version
179 .description
= "scroll up one line",
180 .handler
= com_scroll_up
183 .name
= "scroll_down",
184 .description
= "scroll down one line",
185 .handler
= com_scroll_down
189 .description
= "scroll up one page",
190 .handler
= com_page_up
194 .description
= "scroll down one page",
195 .handler
= com_page_down
201 static int find_cmd_byname(char *name
)
205 for (i
= 0; command_list
[i
].handler
; i
++)
206 if (!strcmp(command_list
[i
].name
, name
))
211 /* taken from mutt */
212 static char *km_keyname(int c
)
217 sprintf(buf
, "<up>");
221 sprintf(buf
, "<down>");
225 sprintf(buf
, "<left>");
228 if (c
== KEY_RIGHT
) {
229 sprintf(buf
, "<right>");
232 if (c
== KEY_NPAGE
) {
233 sprintf(buf
, "<npage>");
236 if (c
== KEY_PPAGE
) {
237 sprintf(buf
, "<ppage>");
240 if (c
< 256 && c
> -128 && iscntrl((unsigned char) c
)) {
245 buf
[1] = (c
+ '@') & 0x7f;
248 snprintf(buf
, sizeof(buf
), "\\%d%d%d", c
>> 6,
249 (c
>> 3) & 7, c
& 7);
250 } else if (c
>= KEY_F0
&& c
< KEY_F(256))
251 sprintf(buf
, "<F%d>", c
- KEY_F0
);
253 snprintf(buf
, sizeof(buf
), "%c", (unsigned char) c
);
255 snprintf(buf
, sizeof(buf
), "\\x%hx", (unsigned short) c
);
259 static char *configfile_exists(void)
261 static char *config_file
;
264 if (!conf
.config_file_given
) {
266 char *home
= para_homedir();
267 config_file
= make_message("%s/.paraslash/gui.conf",
273 tmp
= conf
.config_file_arg
;
274 return file_exists(tmp
)? tmp
: NULL
;
278 * print num spaces to curses window
280 static void add_spaces(WINDOW
* win
, unsigned int num
)
289 * print aligned string to curses window. This function always prints
292 static int align_str(WINDOW
* win
, const char *string
, unsigned int len
,
295 int num
; /* of spaces */
300 num
= len
- strlen(string
);
301 str
= para_strdup(string
);
308 add_spaces(win
, num
);
309 } else if (align
== RIGHT
) {
310 add_spaces(win
, num
);
313 add_spaces(win
, num
/ 2);
314 waddstr(win
, str
[0]? str
: "");
315 add_spaces(win
, num
- num
/ 2);
321 __printf_2_3
static void print_in_bar(int color
, const char *fmt
,...)
327 wattron(in
.win
, COLOR_PAIR(color
));
328 PARA_VSPRINTF(fmt
, msg
);
330 align_str(in
.win
, msg
, sb
.cols
, LEFT
);
336 * update the status bar
338 static void print_status_bar(void)
343 align_str(sb
.win
, STANDARD_STATUS_BAR
, sb
.cols
, CENTER
);
348 * get the number of the oldest rbe that is (partially) visible. On return,
349 * lines contains the sum of the number of lines of all visable entries. If the
350 * first one is only partially visible, lines is greater than bot.lines.
352 static int first_visible_rbe(unsigned *lines
)
356 for (i
= scroll_position
; i
< RINGBUFFER_SIZE
; i
++) {
357 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
361 // fprintf(stderr, "found: %s\n", rbe->msg);
362 rbe_lines
= NUM_LINES(rbe
->len
);
363 if (rbe_lines
> bot
.lines
)
366 if (*lines
>= bot
.lines
)
369 return RINGBUFFER_SIZE
- 1;
372 static int draw_top_rbe(unsigned *lines
)
375 int offset
, fvr
= first_visible_rbe(lines
);
376 struct rb_entry
*rbe
;
380 wmove(bot
.win
, 0, 0);
381 rbe
= ringbuffer_get(bot_win_rb
, fvr
);
384 /* first rbe might be only partially visible */
385 offset
= (*lines
- bot
.lines
) * bot
.cols
;
386 len
= strlen(rbe
->msg
);
387 if (offset
< 0 || len
< offset
)
389 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
390 waddstr(bot
.win
, rbe
->msg
+ offset
);
391 *lines
= NUM_LINES(len
- offset
);
395 static void redraw_bot_win(void)
400 wmove(bot
.win
, 0, 0);
402 i
= draw_top_rbe(&lines
);
405 while (i
> 0 && lines
< bot
.lines
) {
406 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, --i
);
409 waddstr(bot
.win
, "\n");
412 lines
+= NUM_LINES(rbe
->len
);
413 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
414 waddstr(bot
.win
, "\n");
415 waddstr(bot
.win
, rbe
->msg
);
421 static void rb_add_entry(int color
, char *msg
)
423 struct rb_entry
*old
, *new = para_malloc(sizeof(struct rb_entry
));
426 new->len
= strlen(msg
);
428 old
= ringbuffer_add(bot_win_rb
, new);
429 // fprintf(stderr, "added: %s\n", new->msg);
434 if (scroll_position
) {
435 /* discard current scrolling, like xterm does */
440 wattron(bot
.win
, COLOR_PAIR(color
));
441 getyx(bot
.win
, y
, x
);
443 waddstr(bot
.win
, "\n");
444 waddstr(bot
.win
, msg
);
448 * print formated output to bot win and refresh
450 __printf_2_3
static void outputf(int color
, const char* fmt
,...)
456 PARA_VSPRINTF(fmt
, msg
);
457 rb_add_entry(color
, msg
);
461 static void add_output_line(char *line
)
465 rb_add_entry(COLOR_OUTPUT
, para_strdup(line
));
468 void para_log(int ll
, const char *fmt
,...)
473 if (ll
< conf
.loglevel_arg
|| !curses_active
)
482 color
= COLOR_ERRMSG
;
484 PARA_VSPRINTF(fmt
, msg
);
486 rb_add_entry(color
, msg
);
490 static void setup_signal_handling(void)
492 signal_pipe
= para_signal_init();
493 para_install_sighandler(SIGINT
);
494 para_install_sighandler(SIGTERM
);
495 para_install_sighandler(SIGCHLD
);
496 para_install_sighandler(SIGWINCH
);
497 para_install_sighandler(SIGUSR1
);
498 signal(SIGPIPE
, SIG_IGN
);
499 signal(SIGHUP
, SIG_IGN
);
502 static void do_exit(int ret
)
504 signal(SIGTERM
, SIG_IGN
);
509 static void shutdown_curses(void)
518 static void finish(int ret
)
525 * exit curses and print given message to stdout/stderr
527 __printf_2_3
static void msg_n_exit(int ret
, const char* fmt
, ...)
530 FILE *outfd
= ret
? stderr
: stdout
;
534 vfprintf(outfd
, fmt
, argp
);
539 static void print_welcome(void)
541 int ll
= conf
.loglevel_arg
;
544 outputf(COLOR_WELCOME
, "Welcome to para_gui " PACKAGE_VERSION
545 " \"" CODENAME
"\". Theme: %s", theme
.name
);
552 static void init_wins(int top_lines
)
556 top
.lines
= top_lines
;
561 bot
.lines
= LINES
- top
.lines
- 3;
563 bot
.begy
= top
.lines
+ 1;
578 sep
.begy
= top
.lines
;
581 assume_default_colors(theme
.default_fg
, theme
.default_bg
);
583 mvwin(top
.win
, top
.begy
, top
.begx
);
584 wresize(top
.win
, top
.lines
, top
.cols
);
586 mvwin(sb
.win
, sb
.begy
, sb
.begx
);
587 wresize(sb
.win
, sb
.lines
, sb
.cols
);
589 mvwin(sep
.win
, sep
.begy
, sep
.begx
);
590 wresize(sep
.win
, sep
.lines
, sep
.cols
);
592 mvwin(bot
.win
, bot
.begy
, bot
.begx
);
593 wresize(bot
.win
, bot
.lines
, bot
.cols
);
595 mvwin(in
.win
, in
.begy
, in
.begx
);
596 wresize(in
.win
, in
.lines
, in
.cols
);
598 sep
.win
= newwin(sep
.lines
, sep
.cols
, sep
.begy
, sep
.begx
);
599 top
.win
= newwin(top
.lines
, top
.cols
, top
.begy
, top
.begx
);
600 bot
.win
= newwin(bot
.lines
, bot
.cols
, bot
.begy
, bot
.begx
);
601 sb
.win
= newwin(sb
.lines
, sb
.cols
, sb
.begy
, sb
.begx
);
602 in
.win
= newwin(in
.lines
, in
.cols
, in
.begy
, in
.begx
);
603 if (!top
.win
|| !bot
.win
|| !sb
.win
|| !in
.win
|| !sep
.win
)
604 msg_n_exit(1, "Error: Cannot create curses windows\n");
608 scrollok(bot
.win
, 1);
609 wattron(sb
.win
, COLOR_PAIR(COLOR_STATUSBAR
));
610 wattron(sep
.win
, COLOR_PAIR(COLOR_SEPARATOR
));
611 wattron(bot
.win
, COLOR_PAIR(COLOR_BOT
));
612 wattron(top
.win
, COLOR_PAIR(COLOR_TOP
));
624 wmove(sep
.win
, 0, 0);
625 for (i
= 1; i
<= COLS
; i
++)
626 waddstr(sep
.win
, theme
.sep_str
);
629 wnoutrefresh(top
.win
);
630 wnoutrefresh(bot
.win
);
631 //wnoutrefresh(sb.win);
633 wnoutrefresh(in
.win
);
634 wnoutrefresh(sep
.win
);
638 static void check_geometry(void)
640 if (LINES
< theme
.lines_min
|| COLS
< theme
.cols_min
)
641 msg_n_exit(EXIT_FAILURE
, "Error: Terminal (%dx%d) too small"
642 " (need at least %dx%d)\n", COLS
, LINES
,
643 theme
.cols_min
, theme
.lines_min
);
647 * Print stat item #i to curses window
649 static void print_stat_item(int i
)
652 struct stat_item_data d
= theme
.data
[i
];
653 char *c
= stat_content
[i
];
655 if (!curses_active
|| !d
.len
|| !c
)
657 tmp
= make_message("%s%s%s", d
.prefix
, c
, d
.postfix
);
658 // PARA_DEBUG_LOG("%s: read: %s\n", __func__, tmp);
659 wmove(top
.win
, d
.y
* top
.lines
/ 100, d
.x
* COLS
/ 100);
661 wattron(top
.win
, COLOR_PAIR(i
+ 1));
662 align_str(top
.win
, tmp
, d
.len
* COLS
/ 100, d
.align
);
667 static void print_all_items(void)
673 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++)
676 static void clear_all_items(void)
680 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
681 free(stat_content
[i
]);
682 stat_content
[i
] = para_strdup("");
686 static void init_colors(void)
690 msg_n_exit(EXIT_FAILURE
, "Error: No color term\n");
692 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++)
693 if (theme
.data
[i
].len
)
694 init_pair(i
+ 1, theme
.data
[i
].fg
, theme
.data
[i
].bg
);
695 init_pair(COLOR_STATUSBAR
, theme
.sb_fg
, theme
.sb_bg
);
696 init_pair(COLOR_COMMAND
, theme
.cmd_fg
, theme
.cmd_bg
);
697 init_pair(COLOR_OUTPUT
, theme
.output_fg
, theme
.output_bg
);
698 init_pair(COLOR_MSG
, theme
.msg_fg
, theme
.msg_bg
);
699 init_pair(COLOR_ERRMSG
, theme
.err_msg_fg
, theme
.err_msg_bg
);
700 init_pair(COLOR_WELCOME
, theme
.welcome_fg
, theme
.welcome_bg
);
701 init_pair(COLOR_SEPARATOR
, theme
.sep_fg
, theme
.sep_bg
);
702 init_pair(COLOR_TOP
, theme
.default_fg
, theme
.default_bg
);
703 init_pair(COLOR_BOT
, theme
.default_fg
, theme
.default_bg
);
707 * (re-)initialize the curses library FIXME: Error checking
709 static void init_curses(void)
712 if (top
.win
&& refresh() == ERR
) { /* refesh is really needed */
713 msg_n_exit(EXIT_FAILURE
, "refresh() failed\n");
716 curs_set(0); /* make cursor invisible, ignore errors */
717 // if (noraw() == ERR);
718 // msg_n_exit(EXIT_FAILURE, "can not place terminal out of "
720 nonl(); /* tell curses not to do NL->CR/NL on output */
721 noecho(); /* don't echo input */
722 cbreak(); /* take input chars one at a time, no wait for \n */
726 init_wins(theme
.top_lines_default
);
728 noecho(); /* don't echo input */
732 static void check_sigchld(void)
736 pid
= para_reap_child();
739 if (pid
== cmd_pid
) {
743 goto reap_next_child
;
747 * print status line if line starts with known command.
749 static void check_stat_line(char *line
)
753 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
754 i
= stat_line_valid(line
);
756 line
+= strlen(status_item_list
[i
]) + 1;
757 free(stat_content
[i
]);
758 stat_content
[i
] = para_strdup(line
);
765 * This sucker modifies its first argument. *handler and *arg are
766 * pointers to 0-terminated strings (inside line). Crap.
768 static int split_key_map(char *line
, char **handler
, char **arg
)
770 if (!(*handler
= strchr(line
+ 1, ':')))
774 if (!(*arg
= strchr(*handler
, ':')))
783 static int check_key_map_args(void)
787 char *tmp
= NULL
, *handler
, *arg
;
789 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
790 s
= conf
.key_map_arg
[i
];
794 tmp
= para_strdup(s
);
795 if (!split_key_map(tmp
, &handler
, &arg
))
797 if (strlen(handler
) != 1)
806 if (find_cmd_byname(arg
) < 0)
816 * React to various signal-related events
818 static void handle_signal(int sig
)
822 msg_n_exit(EXIT_FAILURE
,
823 "only the good die young (caught SIGTERM))\n");
833 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
834 /* Nothing to do. SIGINT killed our child, para_client stat.
835 * This get noticed by do_select which resets everything
839 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
848 static int open_audiod_pipe(void)
856 return para_open_audiod_pipe(conf
.stat_cmd_arg
);
860 * This is the core select loop. Besides the (internal) signal
861 * pipe, the following other fds are checked according to the mode:
863 * GETCH_MODE: check stdin, return when key is pressed
865 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
866 * of output has been read or when other end has closed command pipe or
867 * when any key is pressed.
869 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
870 * is running. During that thime curses is disabled. Returns when
873 static int do_select(int mode
)
877 int max_fileno
, cp_numread
= 1;
878 char command_buf
[STRINGSIZE
] = "";
879 int cbo
= 0; /* command buf offset */
882 tv
.tv_sec
= conf
.timeout_arg
/ 1000;
883 tv
.tv_usec
= (conf
.timeout_arg
% 1000) * 1000;
884 // ret = refresh_status();
889 audiod_pipe
= open_audiod_pipe();
890 if (audiod_pipe
>= 0)
891 para_fd_set(audiod_pipe
, &rfds
, &max_fileno
);
893 para_fd_set(signal_pipe
, &rfds
, &max_fileno
);
894 /* command pipe only for COMMAND_MODE */
895 if (command_pipe
>= 0 && mode
== COMMAND_MODE
)
896 para_fd_set(command_pipe
, &rfds
, &max_fileno
);
897 ret
= para_select(max_fileno
+ 1, &rfds
, NULL
, &tv
);
899 goto check_return
; /* skip fd checks */
901 if (FD_ISSET(signal_pipe
, &rfds
)) {
902 int sig_nr
= para_next_signal();
904 handle_signal(sig_nr
);
906 /* read command pipe if ready */
907 if (command_pipe
>= 0 && mode
== COMMAND_MODE
&&
908 FD_ISSET(command_pipe
, &rfds
)) {
909 cp_numread
= read(command_pipe
, command_buf
+ cbo
,
910 STRINGSIZE
- 1 - cbo
);
915 PARA_ERROR_LOG("read error (%d)", cp_numread
);
920 if (audiod_pipe
>= 0 && FD_ISSET(audiod_pipe
, &rfds
))
921 if (read_audiod_pipe(audiod_pipe
, check_stat_line
) <= 0) {
925 free(stat_content
[SI_STATUS_BAR
]);
926 stat_content
[SI_STATUS_BAR
] =
927 para_strdup("audiod not running!?");
933 if (cp_numread
<= 0 && !cbo
) /* command complete */
936 cbo
= for_each_line(command_buf
, cbo
, &add_output_line
);
940 ret
= wgetch(top
.win
);
941 if (ret
!= ERR
&& ret
!= KEY_RESIZE
) {
947 kill(cmd_pid
, SIGTERM
);
952 ret
= wgetch(top
.win
);
953 if (ret
!= ERR
&& ret
!= KEY_RESIZE
)
966 * read from command pipe and print data to bot window
968 static int send_output(void)
970 if (command_pipe
< 0)
972 if (do_select(COMMAND_MODE
) >= 0)
973 PARA_INFO_LOG("%s", "command complete");
975 PARA_NOTICE_LOG("%s", "command aborted");
976 print_in_bar(COLOR_MSG
, " ");
980 static int client_cmd_cmdline(char *cmd
)
982 int ret
, fds
[3] = {0, 1, 0};
983 char *c
= make_message(BINDIR
"/para_client %s", cmd
);
985 outputf(COLOR_COMMAND
, "%s", c
);
986 print_in_bar(COLOR_MSG
, "executing client command, hit any key to abort\n");
987 ret
= para_exec_cmdline_pid(&cmd_pid
, c
, fds
);
991 command_pipe
= fds
[1];
992 return send_output();
996 * exec command and print output to bot win
998 static int display_cmd(char *cmd
)
1000 int fds
[3] = {0, 1, 0};
1002 print_in_bar(COLOR_MSG
, "executing display command, hit any key to abort");
1003 outputf(COLOR_COMMAND
, "%s", cmd
);
1004 if (para_exec_cmdline_pid(&cmd_pid
, cmd
, fds
) < 0)
1006 command_pipe
= fds
[1];
1007 return send_output();
1011 * shutdown curses and stat pipe before executing external commands
1013 static int external_cmd(char *cmd
)
1015 int fds
[3] = {-1, -1, -1};
1020 para_exec_cmdline_pid(&cmd_pid
, cmd
, fds
);
1022 do_select(EXTERNAL_MODE
);
1027 static void print_scroll_msg(void)
1029 unsigned lines_total
, filled
= ringbuffer_filled(bot_win_rb
);
1030 int first_rbe
= first_visible_rbe(&lines_total
);
1031 print_in_bar(COLOR_MSG
, "scrolled view: %d-%d/%d\n", filled
- first_rbe
,
1032 filled
- scroll_position
, ringbuffer_filled(bot_win_rb
));
1035 static void com_page_down(void)
1038 int i
= scroll_position
;
1039 while (lines
< bot
.lines
&& --i
> 0) {
1040 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
1043 lines
+= NUM_LINES(strlen(rbe
->msg
));
1046 scroll_position
= i
;
1051 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1054 static void com_page_up(void)
1057 int fvr
= first_visible_rbe(&lines
);
1058 if (fvr
< 0 || fvr
+ 1 >= ringbuffer_filled(bot_win_rb
)) {
1059 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1062 scroll_position
= fvr
+ 1;
1063 for (; scroll_position
> 0; scroll_position
--) {
1064 fvr
= first_visible_rbe(&lines
);
1065 if (lines
== bot
.lines
)
1072 static void com_scroll_down(void)
1074 struct rb_entry
*rbe
;
1077 if (!scroll_position
) {
1078 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1082 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1083 rbe_lines
= NUM_LINES(rbe
->len
);
1084 wscrl(bot
.win
, rbe_lines
);
1085 wmove(bot
.win
, bot
.lines
- rbe_lines
, 0);
1086 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1087 waddstr(bot
.win
, rbe
->msg
);
1092 static void com_scroll_up(void)
1094 struct rb_entry
*rbe
= NULL
;
1096 int i
, first_rbe
, num_scroll
;
1098 /* the entry that is going to vanish */
1099 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1102 num_scroll
= NUM_LINES(rbe
->len
);
1103 first_rbe
= first_visible_rbe(&lines
);
1104 if (first_rbe
< 0 || (first_rbe
== ringbuffer_filled(bot_win_rb
) - 1))
1107 wscrl(bot
.win
, -num_scroll
);
1108 i
= draw_top_rbe(&lines
);
1111 while (i
> 0 && lines
< num_scroll
) {
1113 rbe
= ringbuffer_get(bot_win_rb
, --i
);
1116 rbe_lines
= NUM_LINES(rbe
->len
);
1118 // fprintf(stderr, "msg: %s\n", rbe->msg);
1119 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1120 waddstr(bot
.win
, "\n");
1121 waddstr(bot
.win
, rbe
->msg
);
1130 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1133 static void com_ll_decr(void)
1135 if (conf
.loglevel_arg
<= DEBUG
) {
1136 print_in_bar(COLOR_ERRMSG
,
1137 "loglevel already at maximal verbosity\n");
1140 conf
.loglevel_arg
--;
1141 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1144 static void com_ll_incr(void)
1146 if (conf
.loglevel_arg
>= EMERG
) {
1147 print_in_bar(COLOR_ERRMSG
,
1148 "loglevel already at miminal verbosity\n");
1151 conf
.loglevel_arg
++;
1152 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1156 * reread configuration, terminate on errors
1158 static void com_reread_conf(void)
1160 char *cf
=configfile_exists();
1163 PARA_WARNING_LOG("%s", "there is no configuration to read");
1166 PARA_INFO_LOG("%s", "rereading command line options and config file");
1167 gui_cmdline_parser(_argc
, _argv
, &conf
);
1168 gui_cmdline_parser_configfile(cf
, &conf
, 1, 1, 0);
1169 PARA_NOTICE_LOG("%s", "config file reloaded");
1170 if (check_key_map_args() < 0)
1171 finish(EXIT_FAILURE
);
1174 static void com_help(void)
1178 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1179 char *handler
, *arg
, *tmp
= para_strdup(conf
.key_map_arg
[i
]);
1180 const char *handler_text
= "???", *desc
= NULL
;
1182 if (!split_key_map(tmp
, &handler
, &arg
)) {
1188 handler_text
= "internal";
1189 desc
= command_list
[find_cmd_byname(arg
)].description
;
1191 case 'x': handler_text
= "external"; break;
1192 case 'd': handler_text
= "display "; break;
1193 case 'p': handler_text
= "para "; break;
1195 outputf(COLOR_MSG
, "%s\t%s\t%s%s\t%s", tmp
, handler_text
, arg
,
1196 strlen(arg
) < 8? "\t" : "",
1200 for (i
= 0; command_list
[i
].handler
; i
++) {
1201 struct gui_command gc
= command_list
[i
];
1203 outputf(COLOR_MSG
, "%s\tinternal\t%s\t%s%s", gc
.key
, gc
.name
,
1204 strlen(gc
.name
) < 8? "\t" : "",
1207 print_in_bar(COLOR_MSG
, "try \"para_gui -h\" or \"para_client help\" "
1211 static void com_shrink_top_win(void)
1213 if (top
.lines
<= theme
.top_lines_min
) {
1214 PARA_WARNING_LOG("%s", "can not decrease top window");
1217 init_wins(top
.lines
- 1);
1220 print_in_bar(COLOR_MSG
, "%s", "decreased top window");
1223 static void com_enlarge_top_win(void)
1225 if (bot
.lines
< 3) {
1226 PARA_WARNING_LOG("%s", "can not increase top window");
1229 init_wins(top
.lines
+ 1);
1232 print_in_bar(COLOR_MSG
, "increased top window");
1235 static void com_version(void)
1237 print_in_bar(COLOR_MSG
, "para_gui " PACKAGE_VERSION
" \""
1241 static void com_quit(void)
1246 static void com_refresh(void)
1252 static void change_theme(int next
)
1258 /* This seems to be needed twice, why? */
1261 PARA_NOTICE_LOG("new theme: %s", theme
.name
);
1264 static void com_next_theme(void)
1269 static void com_prev_theme(void)
1275 static void handle_command(int c
)
1279 /* first check user's key bindings */
1280 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1281 char tmp
[MAXLINE
], *handler
, *arg
;
1283 strcpy(tmp
, conf
.key_map_arg
[i
]);
1284 if (!split_key_map(tmp
, &handler
, &arg
))
1286 if (!strcmp(tmp
, km_keyname(c
))) {
1287 if (*handler
== 'd') {
1291 if (*handler
== 'x') {
1295 if (*handler
== 'p') {
1296 client_cmd_cmdline(arg
);
1299 if (*handler
== 'i') {
1300 int num
= find_cmd_byname(arg
);
1302 command_list
[num
].handler();
1307 /* not found, check internal key bindings */
1308 for (i
= 0; command_list
[i
].handler
; i
++) {
1309 if (!strcmp(km_keyname(c
), command_list
[i
].key
)) {
1310 command_list
[i
].handler();
1314 print_in_bar(COLOR_ERRMSG
, "key '%s' is not bound, press ? for help",
1318 int main(int argc
, char *argv
[])
1326 if (gui_cmdline_parser(argc
, argv
, &conf
)) {
1327 fprintf(stderr
, "parse error while reading command line\n");
1330 HANDLE_VERSION_FLAG("gui", conf
);
1331 init_theme(0, &theme
);
1332 top
.lines
= theme
.top_lines_default
;
1333 if (check_key_map_args() < 0) {
1334 fprintf(stderr
, "invalid key map\n");
1337 cf
= configfile_exists();
1338 if (!cf
&& conf
.config_file_given
) {
1339 fprintf(stderr
, "can not read config file %s\n",
1340 conf
.config_file_arg
);
1344 gui_cmdline_parser_configfile(cf
, &conf
, 0, 0, 0);
1345 if (check_key_map_args() < 0) {
1346 fprintf(stderr
, "invalid key map in config file\n");
1349 setup_signal_handling();
1350 bot_win_rb
= ringbuffer_new(RINGBUFFER_SIZE
);
1351 initscr(); /* needed only once, always successful */
1356 ret
= do_select(GETCH_MODE
);
1359 print_in_bar(COLOR_MSG
, " ");
1360 handle_command(ret
);