f63e99bd2c2e3363351f37a0b1b6afe591dd7ca5
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"
28 extern const char *status_item_list
[NUM_STAT_ITEMS
];
29 static char *stat_content
[NUM_STAT_ITEMS
];
31 #define STANDARD_STATUS_BAR "para_gui " VERSION " (hit ? for help)"
33 static int signal_pipe
;
35 static void finish(int sig
);
37 static struct win_data
{
43 } top
, bot
, sb
, in
, sep
;
45 #define RINGBUFFER_SIZE 512
52 #define NUM_LINES(len) (1 + (len) / bot.cols)
54 static unsigned scroll_position
;
56 static int external_cmd_died
, curses_active
;
57 static pid_t external_cmd_pid
;
59 static int command_pipe
= -1;
60 static int audiod_pipe
= -1;
61 static struct gengetopt_args_info conf
;
63 enum {GETCH_MODE
, COMMAND_MODE
, EXTERNAL_MODE
};
66 #define COLOR_STATUSBAR 32
67 #define COLOR_COMMAND 33
68 #define COLOR_OUTPUT 34
70 #define COLOR_ERRMSG 36
71 #define COLOR_WELCOME 37
72 #define COLOR_SEPARATOR 38
79 const char *description
;
80 void (*handler
)(void);
86 char postfix
[MAXLINE
];
92 char content
[MAXLINE
];
95 static struct gui_theme theme
;
100 static void com_help(void);
101 static void com_reread_conf(void);
102 static void com_enlarge_top_win(void);
103 static void com_shrink_top_win(void);
104 static void com_version(void);
105 static void com_quit(void);
106 static void com_refresh(void);
107 static void com_ll_incr(void);
108 static void com_ll_decr(void);
109 static void com_prev_theme(void);
110 static void com_next_theme(void);
111 static void com_scroll_up(void);
112 static void com_scroll_down(void);
113 static void com_page_up(void);
114 static void com_page_down(void);
116 struct gui_command command_list
[] = {
120 .description
= "print help",
124 .name
= "enlarge_win",
125 .description
= "enlarge the top window",
126 .handler
= com_enlarge_top_win
129 .name
= "shrink_win",
130 .description
= "shrink the top window",
131 .handler
= com_shrink_top_win
134 .name
= "reread_conf",
135 .description
= "reread configuration file",
136 .handler
= com_reread_conf
140 .description
= "exit para_gui",
145 .description
= "redraw the screen",
146 .handler
= com_refresh
149 .name
= "next_theme",
150 .description
= "switch to next theme",
151 .handler
= com_next_theme
154 .name
= "prev_theme",
155 .description
= "switch to previous stream",
156 .handler
= com_prev_theme
160 .description
= "increase loglevel (decreases verbosity)",
161 .handler
= com_ll_incr
165 .description
= "decrease loglevel (increases verbosity)",
166 .handler
= com_ll_decr
170 .description
= "show the para_gui version",
171 .handler
= com_version
175 .description
= "scroll up one line",
176 .handler
= com_scroll_up
179 .name
= "scroll_down",
180 .description
= "scroll down one line",
181 .handler
= com_scroll_down
185 .description
= "scroll up one page",
186 .handler
= com_page_up
190 .description
= "scroll down one page",
191 .handler
= com_page_down
197 static int find_cmd_byname(char *name
)
201 for (i
= 0; command_list
[i
].handler
; i
++)
202 if (!strcmp(command_list
[i
].name
, name
))
207 /* taken from mutt */
208 static char *km_keyname(int c
)
213 sprintf(buf
, "<up>");
217 sprintf(buf
, "<down>");
221 sprintf(buf
, "<left>");
224 if (c
== KEY_RIGHT
) {
225 sprintf(buf
, "<right>");
228 if (c
== KEY_NPAGE
) {
229 sprintf(buf
, "<npage>");
232 if (c
== KEY_PPAGE
) {
233 sprintf(buf
, "<ppage>");
236 if (c
< 256 && c
> -128 && iscntrl((unsigned char) c
)) {
241 buf
[1] = (c
+ '@') & 0x7f;
244 snprintf(buf
, sizeof(buf
), "\\%d%d%d", c
>> 6,
245 (c
>> 3) & 7, c
& 7);
246 } else if (c
>= KEY_F0
&& c
< KEY_F(256))
247 sprintf(buf
, "<F%d>", c
- KEY_F0
);
249 snprintf(buf
, sizeof(buf
), "%c", (unsigned char) c
);
251 snprintf(buf
, sizeof(buf
), "\\x%hx", (unsigned short) c
);
255 static char *configfile_exists(void)
257 static char *config_file
;
260 if (!conf
.config_file_given
) {
262 char *home
= para_homedir();
263 config_file
= make_message("%s/.paraslash/gui.conf",
269 tmp
= conf
.config_file_arg
;
270 return file_exists(tmp
)? tmp
: NULL
;
274 * print num spaces to curses window
276 static void add_spaces(WINDOW
* win
, unsigned int num
)
285 * print aligned string to curses window. This function always prints
288 static int align_str(WINDOW
* win
, const char *string
, unsigned int len
,
291 int num
; /* of spaces */
296 num
= len
- strlen(string
);
297 str
= para_strdup(string
);
304 add_spaces(win
, num
);
305 } else if (align
== RIGHT
) {
306 add_spaces(win
, num
);
309 add_spaces(win
, num
/ 2);
310 waddstr(win
, str
[0]? str
: "");
311 add_spaces(win
, num
- num
/ 2);
317 __printf_2_3
static void print_in_bar(int color
, const char *fmt
,...)
323 wattron(in
.win
, COLOR_PAIR(color
));
324 PARA_VSPRINTF(fmt
, msg
);
326 align_str(in
.win
, msg
, sb
.cols
, LEFT
);
332 * update the status bar
334 static void print_status_bar(void)
339 align_str(sb
.win
,STANDARD_STATUS_BAR
, sb
.cols
, CENTER
);
344 * get the number of the oldest rbe that is (partially) visible. On return,
345 * lines contains the sum of the number of lines of all visable entries. If the
346 * first one is only partially visible, lines is greater than bot.lines.
348 static int first_visible_rbe(unsigned *lines
)
352 for (i
= scroll_position
; i
< RINGBUFFER_SIZE
; i
++) {
353 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
357 // fprintf(stderr, "found: %s\n", rbe->msg);
358 rbe_lines
= NUM_LINES(rbe
->len
);
359 if (rbe_lines
> bot
.lines
)
362 if (*lines
>= bot
.lines
)
365 return RINGBUFFER_SIZE
- 1;
368 static int draw_top_rbe(unsigned *lines
)
371 int offset
, fvr
= first_visible_rbe(lines
);
372 struct rb_entry
*rbe
;
376 wmove(bot
.win
, 0, 0);
377 rbe
= ringbuffer_get(bot_win_rb
, fvr
);
380 /* first rbe might be only partially visible */
381 offset
= (*lines
- bot
.lines
) * bot
.cols
;
382 len
= strlen(rbe
->msg
);
383 if (offset
< 0 || len
< offset
)
385 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
386 waddstr(bot
.win
, rbe
->msg
+ offset
);
387 *lines
= NUM_LINES(len
- offset
);
391 static void redraw_bot_win(void)
396 wmove(bot
.win
, 0, 0);
398 i
= draw_top_rbe(&lines
);
401 while (i
> 0 && lines
< bot
.lines
) {
402 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, --i
);
405 waddstr(bot
.win
, "\n");
408 lines
+= NUM_LINES(rbe
->len
);
409 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
410 waddstr(bot
.win
, "\n");
411 waddstr(bot
.win
, rbe
->msg
);
417 static void rb_add_entry(int color
, char *msg
)
419 struct rb_entry
*old
, *new = para_malloc(sizeof(struct rb_entry
));
422 new->len
= strlen(msg
);
424 old
= ringbuffer_add(bot_win_rb
, new);
425 // fprintf(stderr, "added: %s\n", new->msg);
430 if (scroll_position
) {
431 /* discard current scrolling, like xterm does */
436 wattron(bot
.win
, COLOR_PAIR(color
));
437 getyx(bot
.win
, y
, x
);
439 waddstr(bot
.win
, "\n");
440 waddstr(bot
.win
, msg
);
444 * print formated output to bot win and refresh
446 __printf_2_3
static void outputf(int color
, const char* fmt
,...)
452 PARA_VSPRINTF(fmt
, msg
);
453 rb_add_entry(color
, msg
);
457 static void add_output_line(char *line
)
461 rb_add_entry(COLOR_OUTPUT
, para_strdup(line
));
464 void para_log(int ll
, const char *fmt
,...)
469 if (ll
< conf
.loglevel_arg
|| !curses_active
)
478 color
= COLOR_ERRMSG
;
480 PARA_VSPRINTF(fmt
, msg
);
482 rb_add_entry(color
, msg
);
486 static void setup_signal_handling(void)
488 signal_pipe
= para_signal_init();
489 para_install_sighandler(SIGINT
);
490 para_install_sighandler(SIGTERM
);
491 para_install_sighandler(SIGCHLD
);
492 para_install_sighandler(SIGWINCH
);
493 para_install_sighandler(SIGUSR1
);
494 signal(SIGPIPE
, SIG_IGN
);
495 signal(SIGHUP
, SIG_IGN
);
498 static void do_exit(int ret
)
500 signal(SIGTERM
, SIG_IGN
);
505 static void shutdown_curses(void)
514 static void finish(int ret
)
521 * exit curses and print given message to stdout/stderr
523 __printf_2_3
static void msg_n_exit(int ret
, const char* fmt
, ...)
526 FILE *outfd
= ret
? stderr
: stdout
;
530 vfprintf(outfd
, fmt
, argp
);
535 static void print_welcome(void)
537 int ll
= conf
.loglevel_arg
;
540 outputf(COLOR_WELCOME
, "Welcome to para_gui " VERSION
541 " \"" CODENAME
"\". Theme: %s", theme
.name
);
548 static void init_wins(int top_lines
)
552 top
.lines
= top_lines
;
557 bot
.lines
= LINES
- top
.lines
- 3;
559 bot
.begy
= top
.lines
+ 1;
574 sep
.begy
= top
.lines
;
577 assume_default_colors(theme
.default_fg
, theme
.default_bg
);
579 mvwin(top
.win
, top
.begy
, top
.begx
);
580 wresize(top
.win
, top
.lines
, top
.cols
);
582 mvwin(sb
.win
, sb
.begy
, sb
.begx
);
583 wresize(sb
.win
, sb
.lines
, sb
.cols
);
585 mvwin(sep
.win
, sep
.begy
, sep
.begx
);
586 wresize(sep
.win
, sep
.lines
, sep
.cols
);
588 mvwin(bot
.win
, bot
.begy
, bot
.begx
);
589 wresize(bot
.win
, bot
.lines
, bot
.cols
);
591 mvwin(in
.win
, in
.begy
, in
.begx
);
592 wresize(in
.win
, in
.lines
, in
.cols
);
594 sep
.win
= newwin(sep
.lines
, sep
.cols
, sep
.begy
, sep
.begx
);
595 top
.win
= newwin(top
.lines
, top
.cols
, top
.begy
, top
.begx
);
596 bot
.win
= newwin(bot
.lines
, bot
.cols
, bot
.begy
, bot
.begx
);
597 sb
.win
= newwin(sb
.lines
, sb
.cols
, sb
.begy
, sb
.begx
);
598 in
.win
= newwin(in
.lines
, in
.cols
, in
.begy
, in
.begx
);
599 if (!top
.win
|| !bot
.win
|| !sb
.win
|| !in
.win
|| !sep
.win
)
600 msg_n_exit(1, "Error: Cannot create curses windows\n");
604 scrollok(bot
.win
, 1);
605 wattron(sb
.win
, COLOR_PAIR(COLOR_STATUSBAR
));
606 wattron(sep
.win
, COLOR_PAIR(COLOR_SEPARATOR
));
607 wattron(bot
.win
, COLOR_PAIR(COLOR_BOT
));
608 wattron(top
.win
, COLOR_PAIR(COLOR_TOP
));
620 wmove(sep
.win
, 0, 0);
621 for (i
= 1; i
<= COLS
; i
++)
622 waddstr(sep
.win
, theme
.sep_str
);
625 wnoutrefresh(top
.win
);
626 wnoutrefresh(bot
.win
);
627 //wnoutrefresh(sb.win);
629 wnoutrefresh(in
.win
);
630 wnoutrefresh(sep
.win
);
634 static void check_geometry(void)
636 if (LINES
< theme
.lines_min
|| COLS
< theme
.cols_min
)
637 msg_n_exit(EXIT_FAILURE
, "Error: Terminal (%dx%d) too small"
638 " (need at least %dx%d)\n", COLS
, LINES
,
639 theme
.cols_min
, theme
.lines_min
);
643 * Print stat item #i to curses window
645 static void print_stat_item(int i
)
648 struct stat_item_data d
= theme
.data
[i
];
649 char *c
= stat_content
[i
];
651 if (!curses_active
|| !d
.len
|| !c
)
653 tmp
= make_message("%s%s%s", d
.prefix
, c
, d
.postfix
);
654 // PARA_DEBUG_LOG("%s: read: %s\n", __func__, tmp);
655 wmove(top
.win
, d
.y
* top
.lines
/ 100, d
.x
* COLS
/ 100);
657 wattron(top
.win
, COLOR_PAIR(i
+ 1));
658 align_str(top
.win
, tmp
, d
.len
* COLS
/ 100, d
.align
);
663 static void print_all_items(void)
669 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++)
672 static void clear_all_items(void)
676 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
677 free(stat_content
[i
]);
678 stat_content
[i
] = para_strdup("");
682 static void init_colors(void)
686 msg_n_exit(EXIT_FAILURE
, "Error: No color term\n");
688 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++)
689 if (theme
.data
[i
].len
)
690 init_pair(i
+ 1, theme
.data
[i
].fg
, theme
.data
[i
].bg
);
691 init_pair(COLOR_STATUSBAR
, theme
.sb_fg
, theme
.sb_bg
);
692 init_pair(COLOR_COMMAND
, theme
.cmd_fg
, theme
.cmd_bg
);
693 init_pair(COLOR_OUTPUT
, theme
.output_fg
, theme
.output_bg
);
694 init_pair(COLOR_MSG
, theme
.msg_fg
, theme
.msg_bg
);
695 init_pair(COLOR_ERRMSG
, theme
.err_msg_fg
, theme
.err_msg_bg
);
696 init_pair(COLOR_WELCOME
, theme
.welcome_fg
, theme
.welcome_bg
);
697 init_pair(COLOR_SEPARATOR
, theme
.sep_fg
, theme
.sep_bg
);
698 init_pair(COLOR_TOP
, theme
.default_fg
, theme
.default_bg
);
699 init_pair(COLOR_BOT
, theme
.default_fg
, theme
.default_bg
);
703 * (re-)initialize the curses library FIXME: Error checking
705 static void init_curses(void)
708 if (top
.win
&& refresh() == ERR
) { /* refesh is really needed */
709 msg_n_exit(EXIT_FAILURE
, "refresh() failed\n");
712 curs_set(0); /* make cursor invisible, ignore errors */
713 // if (noraw() == ERR);
714 // msg_n_exit(EXIT_FAILURE, "can not place terminal out of "
716 nonl(); /* tell curses not to do NL->CR/NL on output */
717 noecho(); /* don't echo input */
718 cbreak(); /* take input chars one at a time, no wait for \n */
722 init_wins(theme
.top_lines_default
);
724 noecho(); /* don't echo input */
728 static void check_sigchld(void)
732 pid
= para_reap_child();
735 if (pid
== external_cmd_pid
) {
736 external_cmd_pid
= 0;
737 external_cmd_died
= 1;
739 goto reap_next_child
;
743 * print status line if line starts with known command.
745 static void check_stat_line(char *line
)
749 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
750 i
= stat_line_valid(line
);
752 line
+= strlen(status_item_list
[i
]) + 1;
753 free(stat_content
[i
]);
754 stat_content
[i
] = para_strdup(line
);
761 * This sucker modifies its first argument. *handler and *arg are
762 * pointers to 0-terminated strings (inside line). Crap.
764 static int split_key_map(char *line
, char **handler
, char **arg
)
766 if (!(*handler
= strchr(line
+ 1, ':')))
770 if (!(*arg
= strchr(*handler
, ':')))
779 static int check_key_map_args(void)
783 char *tmp
= NULL
, *handler
, *arg
;
785 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
786 s
= conf
.key_map_arg
[i
];
790 tmp
= para_strdup(s
);
791 if (!split_key_map(tmp
, &handler
, &arg
))
793 if (strlen(handler
) != 1)
802 if (find_cmd_byname(arg
) < 0)
812 * React to various signal-related events
814 static void handle_signal(int sig
)
818 msg_n_exit(EXIT_FAILURE
,
819 "only the good die young (caught SIGTERM))\n");
829 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
830 /* Nothing to do. SIGINT killed our child, para_client stat.
831 * This get noticed by do_select which resets everything
835 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
844 static int open_audiod_pipe(void)
852 return para_open_audiod_pipe(conf
.stat_cmd_arg
);
856 * This is the core select loop. Besides the (internal) signal
857 * pipe, the following other fds are checked according to the mode:
859 * GETCH_MODE: check stdin, return when key is pressed
861 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
862 * of output has been read or when other end has closed command pipe or
863 * when any key is pressed.
865 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
866 * is running. During that thime curses is disabled. Returns when
867 * external_cmd_pid == 0.
869 static int do_select(int mode
)
873 int max_fileno
, cp_numread
= 1;
874 char command_buf
[STRINGSIZE
] = "";
875 int cbo
= 0; /* command buf offset */
878 tv
.tv_sec
= conf
.timeout_arg
/ 1000;
879 tv
.tv_usec
= (conf
.timeout_arg
% 1000) * 1000;
880 // ret = refresh_status();
885 audiod_pipe
= open_audiod_pipe();
886 if (audiod_pipe
>= 0) {
887 FD_SET(audiod_pipe
, &rfds
);
888 max_fileno
= MAX(max_fileno
, audiod_pipe
);
892 FD_SET(signal_pipe
, &rfds
);
893 max_fileno
= MAX(max_fileno
, signal_pipe
);
894 /* command pipe only for COMMAND_MODE */
895 if (command_pipe
>= 0 && mode
== COMMAND_MODE
) {
896 FD_SET(command_pipe
, &rfds
);
897 max_fileno
= MAX(max_fileno
, command_pipe
);
900 FD_SET(STDIN_FILENO
, &rfds
);
901 ret
= select(max_fileno
+ 1, &rfds
, NULL
, NULL
, &tv
);
902 // PARA_DEBUG_LOG("select returned %d\n", ret);
905 if (FD_ISSET(signal_pipe
, &rfds
)) {
906 int sig_nr
= para_next_signal();
908 handle_signal(sig_nr
);
911 goto check_return
; /* skip fd checks */
912 /* read command pipe if ready */
913 if (command_pipe
>= 0 && mode
== COMMAND_MODE
&&
914 FD_ISSET(command_pipe
, &rfds
)) {
915 cp_numread
= read(command_pipe
, command_buf
+ cbo
,
916 STRINGSIZE
- 1 - cbo
);
921 PARA_ERROR_LOG("read error (%d)", cp_numread
);
926 if (audiod_pipe
>= 0 && FD_ISSET(audiod_pipe
, &rfds
))
927 if (read_audiod_pipe(audiod_pipe
, check_stat_line
) <= 0) {
931 free(stat_content
[SI_STATUS_BAR
]);
932 stat_content
[SI_STATUS_BAR
] =
933 para_strdup("audiod not running!?");
939 if (cp_numread
<= 0 && !cbo
) /* command complete */
942 cbo
= for_each_line(command_buf
, cbo
, &add_output_line
);
948 ret
= wgetch(top
.win
);
949 if (ret
!= ERR
&& ret
!= KEY_RESIZE
)
953 if (external_cmd_died
) {
954 external_cmd_died
= 0;
962 * read from command pipe and print data to bot window
964 static int send_output(void)
966 if (command_pipe
< 0)
968 if (do_select(COMMAND_MODE
) >= 0)
969 PARA_INFO_LOG("%s", "command complete");
971 PARA_NOTICE_LOG("%s", "command aborted");
972 print_in_bar(COLOR_MSG
, " ");
976 static int client_cmd_cmdline(char *cmd
)
979 int ret
, fds
[3] = {0, 1, 0};
980 char *c
= make_message(BINDIR
"/para_client %s", cmd
);
982 outputf(COLOR_COMMAND
, "%s", c
);
983 print_in_bar(COLOR_MSG
, "executing client command, hit q to abort\n");
984 ret
= para_exec_cmdline_pid(&pid
, c
, fds
);
988 command_pipe
= fds
[1];
989 return send_output();
993 * exec command and print output to bot win
995 static int display_cmd(char *cmd
)
998 int fds
[3] = {0, 1, 0};
1000 print_in_bar(COLOR_MSG
, "executing display command, hit q to abort");
1001 outputf(COLOR_COMMAND
, "%s", cmd
);
1002 if (para_exec_cmdline_pid(&pid
, cmd
, fds
) < 0)
1004 command_pipe
= fds
[1];
1005 return send_output();
1009 * shutdown curses and stat pipe before executing external commands
1011 static int external_cmd(char *cmd
)
1013 int fds
[3] = {-1, -1, -1};
1015 if (external_cmd_pid
)
1018 para_exec_cmdline_pid(&external_cmd_pid
, cmd
, fds
);
1019 do_select(EXTERNAL_MODE
);
1024 static void print_scroll_msg(void)
1026 unsigned lines_total
, filled
= ringbuffer_filled(bot_win_rb
);
1027 int first_rbe
= first_visible_rbe(&lines_total
);
1028 print_in_bar(COLOR_MSG
, "scrolled view: %d-%d/%d\n", filled
- first_rbe
,
1029 filled
- scroll_position
, ringbuffer_filled(bot_win_rb
));
1032 static void com_page_down(void)
1035 int i
= scroll_position
;
1036 while (lines
< bot
.lines
&& --i
> 0) {
1037 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
1040 lines
+= NUM_LINES(strlen(rbe
->msg
));
1043 scroll_position
= i
;
1048 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1051 static void com_page_up(void)
1054 int fvr
= first_visible_rbe(&lines
);
1055 if (fvr
< 0 || fvr
+ 1 >= ringbuffer_filled(bot_win_rb
)) {
1056 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1059 scroll_position
= fvr
+ 1;
1060 for (; scroll_position
> 0; scroll_position
--) {
1061 fvr
= first_visible_rbe(&lines
);
1062 if (lines
== bot
.lines
)
1069 static void com_scroll_down(void)
1071 struct rb_entry
*rbe
;
1074 if (!scroll_position
) {
1075 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1079 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1080 rbe_lines
= NUM_LINES(rbe
->len
);
1081 wscrl(bot
.win
, rbe_lines
);
1082 wmove(bot
.win
, bot
.lines
- rbe_lines
, 0);
1083 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1084 waddstr(bot
.win
, rbe
->msg
);
1089 static void com_scroll_up(void)
1091 struct rb_entry
*rbe
= NULL
;
1093 int i
, first_rbe
, scroll
;
1095 /* the entry that is going to vanish */
1096 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1099 scroll
= NUM_LINES(rbe
->len
);
1100 first_rbe
= first_visible_rbe(&lines
);
1101 if (first_rbe
< 0 || (first_rbe
== ringbuffer_filled(bot_win_rb
) - 1))
1104 wscrl(bot
.win
, -scroll
);
1105 i
= draw_top_rbe(&lines
);
1108 while (i
> 0 && lines
< scroll
) {
1110 rbe
= ringbuffer_get(bot_win_rb
, --i
);
1113 rbe_lines
= NUM_LINES(rbe
->len
);
1115 // fprintf(stderr, "msg: %s\n", rbe->msg);
1116 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1117 waddstr(bot
.win
, "\n");
1118 waddstr(bot
.win
, rbe
->msg
);
1127 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1130 static void com_ll_decr(void)
1132 if (conf
.loglevel_arg
<= DEBUG
) {
1133 print_in_bar(COLOR_ERRMSG
,
1134 "loglevel already at maximal verbosity\n");
1137 conf
.loglevel_arg
--;
1138 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1141 static void com_ll_incr(void)
1143 if (conf
.loglevel_arg
>= EMERG
) {
1144 print_in_bar(COLOR_ERRMSG
,
1145 "loglevel already at miminal verbosity\n");
1148 conf
.loglevel_arg
++;
1149 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1153 * reread configuration, terminate on errors
1155 static void com_reread_conf(void)
1157 char *cf
=configfile_exists();
1160 PARA_WARNING_LOG("%s", "there is no configuration to read");
1163 PARA_INFO_LOG("%s", "rereading command line options and config file");
1164 cmdline_parser(_argc
, _argv
, &conf
);
1165 cmdline_parser_configfile(cf
, &conf
, 1, 1, 0);
1166 PARA_NOTICE_LOG("%s", "configuration read");
1167 if (check_key_map_args() < 0)
1168 finish(EXIT_FAILURE
);
1171 static void com_help(void)
1175 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1176 char *handler
, *arg
, *tmp
= para_strdup(conf
.key_map_arg
[i
]);
1177 const char *handler_text
= "???", *desc
= NULL
;
1179 if (!split_key_map(tmp
, &handler
, &arg
)) {
1185 handler_text
= "internal";
1186 desc
= command_list
[find_cmd_byname(arg
)].description
;
1188 case 'x': handler_text
= "external"; break;
1189 case 'd': handler_text
= "display "; break;
1190 case 'p': handler_text
= "para "; break;
1192 outputf(COLOR_MSG
, "%s\t%s\t%s%s\t%s", tmp
, handler_text
, arg
,
1193 strlen(arg
) < 8? "\t" : "",
1197 for (i
= 0; command_list
[i
].handler
; i
++) {
1198 struct gui_command gc
= command_list
[i
];
1200 outputf(COLOR_MSG
, "%s\tinternal\t%s\t%s%s", gc
.key
, gc
.name
,
1201 strlen(gc
.name
) < 8? "\t" : "",
1204 print_in_bar(COLOR_MSG
, "try \"para_gui -h\" or \"para_client help\" "
1208 static void com_shrink_top_win(void)
1210 if (top
.lines
<= theme
.top_lines_min
) {
1211 PARA_WARNING_LOG("%s", "can not decrease top window");
1214 init_wins(top
.lines
- 1);
1217 print_in_bar(COLOR_MSG
, "%s", "decreased top window");
1220 static void com_enlarge_top_win(void)
1222 if (bot
.lines
< 3) {
1223 PARA_WARNING_LOG("%s", "can not increase top window");
1226 init_wins(top
.lines
+ 1);
1229 print_in_bar(COLOR_MSG
, "increased top window");
1232 static void com_version(void)
1234 print_in_bar(COLOR_MSG
, "para_gui " VERSION
" \"" CODENAME
"\"");
1237 static void com_quit(void)
1242 static void com_refresh(void)
1248 static void change_theme(int next
)
1254 /* This seems to be needed twice, why? */
1257 PARA_NOTICE_LOG("new theme: %s", theme
.name
);
1260 static void com_next_theme(void)
1265 static void com_prev_theme(void)
1271 static void handle_command(int c
)
1275 /* first check user's key bindings */
1276 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1277 char tmp
[MAXLINE
], *handler
, *arg
;
1279 strcpy(tmp
, conf
.key_map_arg
[i
]);
1280 if (!split_key_map(tmp
, &handler
, &arg
))
1282 if (!strcmp(tmp
, km_keyname(c
))) {
1283 if (*handler
== 'd') {
1287 if (*handler
== 'x') {
1291 if (*handler
== 'p') {
1292 client_cmd_cmdline(arg
);
1295 if (*handler
== 'i') {
1296 int num
= find_cmd_byname(arg
);
1298 command_list
[num
].handler();
1303 /* not found, check internal key bindings */
1304 for (i
= 0; command_list
[i
].handler
; i
++) {
1305 if (!strcmp(km_keyname(c
), command_list
[i
].key
)) {
1306 command_list
[i
].handler();
1310 print_in_bar(COLOR_ERRMSG
, "key '%s' is not bound, press ? for help",
1314 int main(int argc
, char *argv
[])
1322 if (cmdline_parser(argc
, argv
, &conf
)) {
1323 fprintf(stderr
, "parse error while reading command line\n");
1326 init_theme(0, &theme
);
1327 top
.lines
= theme
.top_lines_default
;
1328 if (check_key_map_args() < 0) {
1329 fprintf(stderr
, "invalid key map\n");
1332 cf
= configfile_exists();
1333 if (!cf
&& conf
.config_file_given
) {
1334 fprintf(stderr
, "can not read config file %s\n",
1335 conf
.config_file_arg
);
1339 cmdline_parser_configfile(cf
, &conf
, 0, 0, 0);
1340 if (check_key_map_args() < 0) {
1341 fprintf(stderr
, "invalid key map in config file\n");
1344 setup_signal_handling();
1345 bot_win_rb
= ringbuffer_new(RINGBUFFER_SIZE
);
1346 initscr(); /* needed only once, always successful */
1351 ret
= do_select(GETCH_MODE
);
1354 print_in_bar(COLOR_MSG
, " ");
1355 handle_command(ret
);