2 * Copyright (C) 1998-2008 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file gui.c ncurses-based interface for paraslash */
10 #include <sys/types.h>
12 #include "gui.cmdline.h"
16 #include "ringbuffer.h"
17 #include "gui_common.h"
24 /** define the array of error lists needed by para_gui */
26 static char *stat_content
[NUM_STAT_ITEMS
];
28 #define STANDARD_STATUS_BAR "para_gui " PACKAGE_VERSION " (hit ? for help)"
30 static int signal_pipe
;
32 static void finish(int sig
);
34 static struct win_data
{
40 } top
, bot
, sb
, in
, sep
;
42 #define RINGBUFFER_SIZE 512
48 struct ringbuffer
*bot_win_rb
;
49 #define NUM_LINES(len) (1 + (len) / bot.cols)
51 static unsigned scroll_position
;
53 static int cmd_died
, curses_active
;
56 static int command_pipe
= -1;
57 static int audiod_pipe
= -1;
58 static struct gui_args_info conf
;
60 enum {GETCH_MODE
, COMMAND_MODE
, EXTERNAL_MODE
};
63 #define COLOR_STATUSBAR 52
64 #define COLOR_COMMAND 53
65 #define COLOR_OUTPUT 54
67 #define COLOR_ERRMSG 56
68 #define COLOR_WELCOME 57
69 #define COLOR_SEPARATOR 58
76 const char *description
;
77 void (*handler
)(void);
83 char postfix
[MAXLINE
];
89 char content
[MAXLINE
];
92 static struct gui_theme theme
;
97 static void com_help(void);
98 static void com_reread_conf(void);
99 static void com_enlarge_top_win(void);
100 static void com_shrink_top_win(void);
101 static void com_version(void);
102 static void com_quit(void);
103 static void com_refresh(void);
104 static void com_ll_incr(void);
105 static void com_ll_decr(void);
106 static void com_prev_theme(void);
107 static void com_next_theme(void);
108 static void com_scroll_up(void);
109 static void com_scroll_down(void);
110 static void com_page_up(void);
111 static void com_page_down(void);
113 struct gui_command command_list
[] = {
117 .description
= "print help",
121 .name
= "enlarge_win",
122 .description
= "enlarge the top window",
123 .handler
= com_enlarge_top_win
126 .name
= "shrink_win",
127 .description
= "shrink the top window",
128 .handler
= com_shrink_top_win
131 .name
= "reread_conf",
132 .description
= "reread configuration file",
133 .handler
= com_reread_conf
137 .description
= "exit para_gui",
142 .description
= "redraw the screen",
143 .handler
= com_refresh
146 .name
= "next_theme",
147 .description
= "switch to next theme",
148 .handler
= com_next_theme
151 .name
= "prev_theme",
152 .description
= "switch to previous stream",
153 .handler
= com_prev_theme
157 .description
= "increase loglevel (decreases verbosity)",
158 .handler
= com_ll_incr
162 .description
= "decrease loglevel (increases verbosity)",
163 .handler
= com_ll_decr
167 .description
= "show the para_gui version",
168 .handler
= com_version
172 .description
= "scroll up one line",
173 .handler
= com_scroll_up
176 .name
= "scroll_down",
177 .description
= "scroll down one line",
178 .handler
= com_scroll_down
182 .description
= "scroll up one page",
183 .handler
= com_page_up
187 .description
= "scroll down one page",
188 .handler
= com_page_down
194 static int find_cmd_byname(char *name
)
198 for (i
= 0; command_list
[i
].handler
; i
++)
199 if (!strcmp(command_list
[i
].name
, name
))
204 /* taken from mutt */
205 static char *km_keyname(int c
)
210 sprintf(buf
, "<up>");
214 sprintf(buf
, "<down>");
218 sprintf(buf
, "<left>");
221 if (c
== KEY_RIGHT
) {
222 sprintf(buf
, "<right>");
225 if (c
== KEY_NPAGE
) {
226 sprintf(buf
, "<npage>");
229 if (c
== KEY_PPAGE
) {
230 sprintf(buf
, "<ppage>");
233 if (c
< 256 && c
> -128 && iscntrl((unsigned char) c
)) {
238 buf
[1] = (c
+ '@') & 0x7f;
241 snprintf(buf
, sizeof(buf
), "\\%d%d%d", c
>> 6,
242 (c
>> 3) & 7, c
& 7);
243 } else if (c
>= KEY_F0
&& c
< KEY_F(256))
244 sprintf(buf
, "<F%d>", c
- KEY_F0
);
246 snprintf(buf
, sizeof(buf
), "%c", (unsigned char) c
);
248 snprintf(buf
, sizeof(buf
), "\\x%hx", (unsigned short) c
);
252 static char *configfile_exists(void)
254 static char *config_file
;
257 if (!conf
.config_file_given
) {
259 char *home
= para_homedir();
260 config_file
= make_message("%s/.paraslash/gui.conf",
266 tmp
= conf
.config_file_arg
;
267 return file_exists(tmp
)? tmp
: NULL
;
271 * print num spaces to curses window
273 static void add_spaces(WINDOW
* win
, unsigned int num
)
282 * print aligned string to curses window. This function always prints
285 static int align_str(WINDOW
* win
, const char *string
, unsigned int len
,
288 int num
; /* of spaces */
293 num
= len
- strlen(string
);
294 str
= para_strdup(string
);
301 add_spaces(win
, num
);
302 } else if (align
== RIGHT
) {
303 add_spaces(win
, num
);
306 add_spaces(win
, num
/ 2);
307 waddstr(win
, str
[0]? str
: "");
308 add_spaces(win
, num
- num
/ 2);
314 __printf_2_3
static void print_in_bar(int color
, const char *fmt
,...)
320 wattron(in
.win
, COLOR_PAIR(color
));
321 PARA_VSPRINTF(fmt
, msg
);
323 align_str(in
.win
, msg
, sb
.cols
, LEFT
);
329 * update the status bar
331 static void print_status_bar(void)
336 align_str(sb
.win
, STANDARD_STATUS_BAR
, sb
.cols
, CENTER
);
341 * get the number of the oldest rbe that is (partially) visible. On return,
342 * lines contains the sum of the number of lines of all visable entries. If the
343 * first one is only partially visible, lines is greater than bot.lines.
345 static int first_visible_rbe(unsigned *lines
)
349 for (i
= scroll_position
; i
< RINGBUFFER_SIZE
; i
++) {
350 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
354 // fprintf(stderr, "found: %s\n", rbe->msg);
355 rbe_lines
= NUM_LINES(rbe
->len
);
356 if (rbe_lines
> bot
.lines
)
359 if (*lines
>= bot
.lines
)
362 return RINGBUFFER_SIZE
- 1;
365 static int draw_top_rbe(unsigned *lines
)
368 int offset
, fvr
= first_visible_rbe(lines
);
369 struct rb_entry
*rbe
;
373 wmove(bot
.win
, 0, 0);
374 rbe
= ringbuffer_get(bot_win_rb
, fvr
);
377 /* first rbe might be only partially visible */
378 offset
= (*lines
- bot
.lines
) * bot
.cols
;
379 len
= strlen(rbe
->msg
);
380 if (offset
< 0 || len
< offset
)
382 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
383 waddstr(bot
.win
, rbe
->msg
+ offset
);
384 *lines
= NUM_LINES(len
- offset
);
388 static void redraw_bot_win(void)
393 wmove(bot
.win
, 0, 0);
395 i
= draw_top_rbe(&lines
);
398 while (i
> 0 && lines
< bot
.lines
) {
399 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, --i
);
402 waddstr(bot
.win
, "\n");
405 lines
+= NUM_LINES(rbe
->len
);
406 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
407 waddstr(bot
.win
, "\n");
408 waddstr(bot
.win
, rbe
->msg
);
414 static void rb_add_entry(int color
, char *msg
)
416 struct rb_entry
*old
, *new = para_malloc(sizeof(struct rb_entry
));
419 new->len
= strlen(msg
);
421 old
= ringbuffer_add(bot_win_rb
, new);
422 // fprintf(stderr, "added: %s\n", new->msg);
427 if (scroll_position
) {
428 /* discard current scrolling, like xterm does */
433 wattron(bot
.win
, COLOR_PAIR(color
));
434 getyx(bot
.win
, y
, x
);
436 waddstr(bot
.win
, "\n");
437 waddstr(bot
.win
, msg
);
441 * print formated output to bot win and refresh
443 __printf_2_3
static void outputf(int color
, const char* fmt
,...)
449 PARA_VSPRINTF(fmt
, msg
);
450 rb_add_entry(color
, msg
);
454 static int add_output_line(char *line
, __a_unused
void *data
)
458 rb_add_entry(COLOR_OUTPUT
, para_strdup(line
));
462 void para_log(int ll
, const char *fmt
,...)
467 if (ll
< conf
.loglevel_arg
|| !curses_active
)
476 color
= COLOR_ERRMSG
;
478 PARA_VSPRINTF(fmt
, msg
);
480 rb_add_entry(color
, msg
);
484 static void setup_signal_handling(void)
486 signal_pipe
= para_signal_init();
487 para_install_sighandler(SIGINT
);
488 para_install_sighandler(SIGTERM
);
489 para_install_sighandler(SIGCHLD
);
490 para_install_sighandler(SIGWINCH
);
491 para_install_sighandler(SIGUSR1
);
492 // signal(SIGPIPE, SIG_IGN);
493 signal(SIGHUP
, SIG_IGN
);
496 static void do_exit(int ret
)
498 signal(SIGTERM
, SIG_IGN
);
503 static void shutdown_curses(void)
512 static void finish(int ret
)
519 * exit curses and print given message to stdout/stderr
521 __printf_2_3
static void msg_n_exit(int ret
, const char* fmt
, ...)
524 FILE *outfd
= ret
? stderr
: stdout
;
528 vfprintf(outfd
, fmt
, argp
);
533 static void print_welcome(void)
535 int ll
= conf
.loglevel_arg
;
538 outputf(COLOR_WELCOME
, "Welcome to para_gui " PACKAGE_VERSION
539 " \"" CODENAME
"\". Theme: %s", theme
.name
);
546 static void init_wins(int top_lines
)
550 top
.lines
= top_lines
;
555 bot
.lines
= LINES
- top
.lines
- 3;
557 bot
.begy
= top
.lines
+ 1;
572 sep
.begy
= top
.lines
;
575 assume_default_colors(theme
.default_fg
, theme
.default_bg
);
577 mvwin(top
.win
, top
.begy
, top
.begx
);
578 wresize(top
.win
, top
.lines
, top
.cols
);
580 mvwin(sb
.win
, sb
.begy
, sb
.begx
);
581 wresize(sb
.win
, sb
.lines
, sb
.cols
);
583 mvwin(sep
.win
, sep
.begy
, sep
.begx
);
584 wresize(sep
.win
, sep
.lines
, sep
.cols
);
586 mvwin(bot
.win
, bot
.begy
, bot
.begx
);
587 wresize(bot
.win
, bot
.lines
, bot
.cols
);
589 mvwin(in
.win
, in
.begy
, in
.begx
);
590 wresize(in
.win
, in
.lines
, in
.cols
);
592 sep
.win
= newwin(sep
.lines
, sep
.cols
, sep
.begy
, sep
.begx
);
593 top
.win
= newwin(top
.lines
, top
.cols
, top
.begy
, top
.begx
);
594 bot
.win
= newwin(bot
.lines
, bot
.cols
, bot
.begy
, bot
.begx
);
595 sb
.win
= newwin(sb
.lines
, sb
.cols
, sb
.begy
, sb
.begx
);
596 in
.win
= newwin(in
.lines
, in
.cols
, in
.begy
, in
.begx
);
597 if (!top
.win
|| !bot
.win
|| !sb
.win
|| !in
.win
|| !sep
.win
)
598 msg_n_exit(1, "Error: Cannot create curses windows\n");
602 scrollok(bot
.win
, 1);
603 wattron(sb
.win
, COLOR_PAIR(COLOR_STATUSBAR
));
604 wattron(sep
.win
, COLOR_PAIR(COLOR_SEPARATOR
));
605 wattron(bot
.win
, COLOR_PAIR(COLOR_BOT
));
606 wattron(top
.win
, COLOR_PAIR(COLOR_TOP
));
618 wmove(sep
.win
, 0, 0);
619 for (i
= 1; i
<= COLS
; i
++)
620 waddstr(sep
.win
, theme
.sep_str
);
623 wnoutrefresh(top
.win
);
624 wnoutrefresh(bot
.win
);
625 //wnoutrefresh(sb.win);
627 wnoutrefresh(in
.win
);
628 wnoutrefresh(sep
.win
);
632 static void check_geometry(void)
634 if (LINES
< theme
.lines_min
|| COLS
< theme
.cols_min
)
635 msg_n_exit(EXIT_FAILURE
, "Error: Terminal (%dx%d) too small"
636 " (need at least %dx%d)\n", COLS
, LINES
,
637 theme
.cols_min
, theme
.lines_min
);
641 * Print stat item #i to curses window
643 static void print_stat_item(int i
)
646 struct stat_item_data d
= theme
.data
[i
];
647 char *c
= stat_content
[i
];
649 if (!curses_active
|| !d
.len
|| !c
)
651 tmp
= make_message("%s%s%s", d
.prefix
, c
, d
.postfix
);
652 wmove(top
.win
, d
.y
* top
.lines
/ 100, d
.x
* COLS
/ 100);
654 wattron(top
.win
, COLOR_PAIR(i
+ 1));
655 align_str(top
.win
, tmp
, d
.len
* COLS
/ 100, d
.align
);
660 static void print_all_items(void)
666 FOR_EACH_STATUS_ITEM(i
)
670 static void clear_all_items(void)
674 FOR_EACH_STATUS_ITEM(i
) {
675 free(stat_content
[i
]);
676 stat_content
[i
] = para_strdup("");
680 static void init_colors(void)
685 msg_n_exit(EXIT_FAILURE
, "Error: No color term\n");
687 FOR_EACH_STATUS_ITEM(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)
732 ret
= para_reap_child(&pid
);
735 if (pid
== cmd_pid
) {
739 goto reap_next_child
;
743 * print status line if line starts with known command.
745 static int check_stat_line(char *line
, __a_unused
void *data
)
749 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
750 i
= stat_line_valid(line
);
752 line
+= strlen(status_item_list
[i
]) + 1;
755 free(stat_content
[i
]);
756 stat_content
[i
] = para_strdup(line
);
763 * This sucker modifies its first argument. *handler and *arg are
764 * pointers to 0-terminated strings (inside line). Crap.
766 static int split_key_map(char *line
, char **handler
, char **arg
)
768 if (!(*handler
= strchr(line
+ 1, ':')))
772 if (!(*arg
= strchr(*handler
, ':')))
781 static int check_key_map_args(void)
785 char *tmp
= NULL
, *handler
, *arg
;
787 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
788 s
= conf
.key_map_arg
[i
];
792 tmp
= para_strdup(s
);
793 if (!split_key_map(tmp
, &handler
, &arg
))
795 if (strlen(handler
) != 1)
804 if (find_cmd_byname(arg
) < 0)
814 * React to various signal-related events
816 static void handle_signal(int sig
)
820 msg_n_exit(EXIT_FAILURE
,
821 "only the good die young (caught SIGTERM))\n");
831 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
832 /* Nothing to do. SIGINT killed our child, para_client stat.
833 * This get noticed by do_select which resets everything
837 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
846 static int open_audiod_pipe(void)
854 return para_open_audiod_pipe(conf
.stat_cmd_arg
);
858 * This is the core select loop. Besides the (internal) signal
859 * pipe, the following other fds are checked according to the mode:
861 * GETCH_MODE: check stdin, return when key is pressed
863 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
864 * of output has been read or when other end has closed command pipe or
865 * when any key is pressed.
867 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
868 * is running. During that thime curses is disabled. Returns when
871 static int do_select(int mode
)
875 int max_fileno
, cp_numread
= 1;
876 char command_buf
[4096] = "";
877 int cbo
= 0; /* command buf offset */
880 tv
.tv_sec
= conf
.timeout_arg
/ 1000;
881 tv
.tv_usec
= (conf
.timeout_arg
% 1000) * 1000;
882 // ret = refresh_status();
887 audiod_pipe
= open_audiod_pipe();
888 if (audiod_pipe
>= 0)
889 para_fd_set(audiod_pipe
, &rfds
, &max_fileno
);
891 para_fd_set(signal_pipe
, &rfds
, &max_fileno
);
892 /* command pipe only for COMMAND_MODE */
893 if (command_pipe
>= 0 && mode
== COMMAND_MODE
)
894 para_fd_set(command_pipe
, &rfds
, &max_fileno
);
895 ret
= para_select(max_fileno
+ 1, &rfds
, NULL
, &tv
);
897 goto check_return
; /* skip fd checks */
899 if (FD_ISSET(signal_pipe
, &rfds
)) {
900 int sig_nr
= para_next_signal();
902 handle_signal(sig_nr
);
904 /* read command pipe if ready */
905 if (command_pipe
>= 0 && mode
== COMMAND_MODE
&&
906 FD_ISSET(command_pipe
, &rfds
)) {
907 cp_numread
= read(command_pipe
, command_buf
+ cbo
,
908 sizeof(command_buf
) - 1 - cbo
);
913 PARA_ERROR_LOG("read error (%d)", cp_numread
);
918 if (audiod_pipe
>= 0 && FD_ISSET(audiod_pipe
, &rfds
))
919 if (read_audiod_pipe(audiod_pipe
, check_stat_line
) <= 0) {
923 free(stat_content
[SI_BASENAME
]);
924 stat_content
[SI_BASENAME
] =
925 para_strdup("audiod not running!?");
931 if (cp_numread
<= 0 && !cbo
) /* command complete */
934 cbo
= for_each_line(command_buf
, cbo
,
935 &add_output_line
, NULL
);
939 ret
= wgetch(top
.win
);
940 if (ret
!= ERR
&& ret
!= KEY_RESIZE
) {
946 kill(cmd_pid
, SIGTERM
);
951 ret
= wgetch(top
.win
);
952 if (ret
!= ERR
&& ret
!= KEY_RESIZE
)
965 * read from command pipe and print data to bot window
967 static int send_output(void)
971 if (command_pipe
< 0)
973 ret
= mark_fd_nonblocking(command_pipe
);
978 if (do_select(COMMAND_MODE
) >= 0)
979 PARA_INFO_LOG("%s", "command complete");
981 PARA_NOTICE_LOG("%s", "command aborted");
982 print_in_bar(COLOR_MSG
, " ");
986 static int client_cmd_cmdline(char *cmd
)
988 int ret
, fds
[3] = {0, 1, 0};
989 char *c
= make_message(BINDIR
"/para_client -- %s", cmd
);
991 outputf(COLOR_COMMAND
, "%s", c
);
992 print_in_bar(COLOR_MSG
, "executing client command, hit any key to abort\n");
993 ret
= para_exec_cmdline_pid(&cmd_pid
, c
, fds
);
997 command_pipe
= fds
[1];
998 return send_output();
1002 * exec command and print output to bot win
1004 static int display_cmd(char *cmd
)
1006 int fds
[3] = {0, 1, 0};
1008 print_in_bar(COLOR_MSG
, "executing display command, hit any key to abort");
1009 outputf(COLOR_COMMAND
, "%s", cmd
);
1010 if (para_exec_cmdline_pid(&cmd_pid
, cmd
, fds
) < 0)
1012 command_pipe
= fds
[1];
1013 return send_output();
1017 * shutdown curses and stat pipe before executing external commands
1019 static int external_cmd(char *cmd
)
1021 int fds
[3] = {-1, -1, -1};
1026 para_exec_cmdline_pid(&cmd_pid
, cmd
, fds
);
1028 do_select(EXTERNAL_MODE
);
1033 static void print_scroll_msg(void)
1035 unsigned lines_total
, filled
= ringbuffer_filled(bot_win_rb
);
1036 int first_rbe
= first_visible_rbe(&lines_total
);
1037 print_in_bar(COLOR_MSG
, "scrolled view: %d-%d/%d\n", filled
- first_rbe
,
1038 filled
- scroll_position
, ringbuffer_filled(bot_win_rb
));
1041 static void com_page_down(void)
1044 int i
= scroll_position
;
1045 while (lines
< bot
.lines
&& --i
> 0) {
1046 struct rb_entry
*rbe
= ringbuffer_get(bot_win_rb
, i
);
1049 lines
+= NUM_LINES(strlen(rbe
->msg
));
1052 scroll_position
= i
;
1057 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1060 static void com_page_up(void)
1063 int fvr
= first_visible_rbe(&lines
);
1064 if (fvr
< 0 || fvr
+ 1 >= ringbuffer_filled(bot_win_rb
)) {
1065 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1068 scroll_position
= fvr
+ 1;
1069 for (; scroll_position
> 0; scroll_position
--) {
1070 fvr
= first_visible_rbe(&lines
);
1071 if (lines
== bot
.lines
)
1078 static void com_scroll_down(void)
1080 struct rb_entry
*rbe
;
1083 if (!scroll_position
) {
1084 print_in_bar(COLOR_ERRMSG
, "bottom of buffer is shown\n");
1088 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1089 rbe_lines
= NUM_LINES(rbe
->len
);
1090 wscrl(bot
.win
, rbe_lines
);
1091 wmove(bot
.win
, bot
.lines
- rbe_lines
, 0);
1092 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1093 waddstr(bot
.win
, rbe
->msg
);
1098 static void com_scroll_up(void)
1100 struct rb_entry
*rbe
= NULL
;
1102 int i
, first_rbe
, num_scroll
;
1104 /* the entry that is going to vanish */
1105 rbe
= ringbuffer_get(bot_win_rb
, scroll_position
);
1108 num_scroll
= NUM_LINES(rbe
->len
);
1109 first_rbe
= first_visible_rbe(&lines
);
1110 if (first_rbe
< 0 || (first_rbe
== ringbuffer_filled(bot_win_rb
) - 1))
1113 wscrl(bot
.win
, -num_scroll
);
1114 i
= draw_top_rbe(&lines
);
1117 while (i
> 0 && lines
< num_scroll
) {
1119 rbe
= ringbuffer_get(bot_win_rb
, --i
);
1122 rbe_lines
= NUM_LINES(rbe
->len
);
1124 // fprintf(stderr, "msg: %s\n", rbe->msg);
1125 wattron(bot
.win
, COLOR_PAIR(rbe
->color
));
1126 waddstr(bot
.win
, "\n");
1127 waddstr(bot
.win
, rbe
->msg
);
1136 print_in_bar(COLOR_ERRMSG
, "top of buffer is shown\n");
1139 static void com_ll_decr(void)
1141 if (conf
.loglevel_arg
<= DEBUG
) {
1142 print_in_bar(COLOR_ERRMSG
,
1143 "loglevel already at maximal verbosity\n");
1146 conf
.loglevel_arg
--;
1147 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1150 static void com_ll_incr(void)
1152 if (conf
.loglevel_arg
>= EMERG
) {
1153 print_in_bar(COLOR_ERRMSG
,
1154 "loglevel already at miminal verbosity\n");
1157 conf
.loglevel_arg
++;
1158 print_in_bar(COLOR_MSG
, "loglevel set to %d\n", conf
.loglevel_arg
);
1162 * reread configuration, terminate on errors
1164 static void com_reread_conf(void)
1166 char *cf
=configfile_exists();
1167 struct gui_cmdline_parser_params params
= {
1170 .check_required
= 0,
1171 .check_ambiguity
= 0
1175 PARA_WARNING_LOG("%s", "there is no configuration to read");
1178 PARA_INFO_LOG("%s", "rereading command line options and config file");
1179 gui_cmdline_parser(_argc
, _argv
, &conf
);
1180 gui_cmdline_parser_config_file(cf
, &conf
, ¶ms
);
1181 PARA_NOTICE_LOG("%s", "config file reloaded");
1182 if (check_key_map_args() < 0)
1183 finish(EXIT_FAILURE
);
1186 static void com_help(void)
1190 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1191 char *handler
, *arg
, *tmp
= para_strdup(conf
.key_map_arg
[i
]);
1192 const char *handler_text
= "???", *desc
= NULL
;
1194 if (!split_key_map(tmp
, &handler
, &arg
)) {
1200 handler_text
= "internal";
1201 desc
= command_list
[find_cmd_byname(arg
)].description
;
1203 case 'x': handler_text
= "external"; break;
1204 case 'd': handler_text
= "display "; break;
1205 case 'p': handler_text
= "para "; break;
1207 outputf(COLOR_MSG
, "%s\t%s\t%s%s\t%s", tmp
, handler_text
, arg
,
1208 strlen(arg
) < 8? "\t" : "",
1212 for (i
= 0; command_list
[i
].handler
; i
++) {
1213 struct gui_command gc
= command_list
[i
];
1215 outputf(COLOR_MSG
, "%s\tinternal\t%s\t%s%s", gc
.key
, gc
.name
,
1216 strlen(gc
.name
) < 8? "\t" : "",
1219 print_in_bar(COLOR_MSG
, "try \"para_gui -h\" or \"para_client help\" "
1223 static void com_shrink_top_win(void)
1225 if (top
.lines
<= theme
.top_lines_min
) {
1226 PARA_WARNING_LOG("%s", "can not decrease top window");
1229 init_wins(top
.lines
- 1);
1232 print_in_bar(COLOR_MSG
, "%s", "decreased top window");
1235 static void com_enlarge_top_win(void)
1237 if (bot
.lines
< 3) {
1238 PARA_WARNING_LOG("%s", "can not increase top window");
1241 init_wins(top
.lines
+ 1);
1244 print_in_bar(COLOR_MSG
, "increased top window");
1247 static void com_version(void)
1249 print_in_bar(COLOR_MSG
, "para_gui " PACKAGE_VERSION
" \""
1253 static void com_quit(void)
1258 static void com_refresh(void)
1264 static void change_theme(int next
)
1270 /* This seems to be needed twice, why? */
1273 PARA_NOTICE_LOG("new theme: %s", theme
.name
);
1276 static void com_next_theme(void)
1281 static void com_prev_theme(void)
1287 static void handle_command(int c
)
1291 /* first check user's key bindings */
1292 for (i
= 0; i
< conf
.key_map_given
; ++i
) {
1293 char tmp
[MAXLINE
], *handler
, *arg
;
1295 strcpy(tmp
, conf
.key_map_arg
[i
]);
1296 if (!split_key_map(tmp
, &handler
, &arg
))
1298 if (!strcmp(tmp
, km_keyname(c
))) {
1299 if (*handler
== 'd') {
1303 if (*handler
== 'x') {
1307 if (*handler
== 'p') {
1308 client_cmd_cmdline(arg
);
1311 if (*handler
== 'i') {
1312 int num
= find_cmd_byname(arg
);
1314 command_list
[num
].handler();
1319 /* not found, check internal key bindings */
1320 for (i
= 0; command_list
[i
].handler
; i
++) {
1321 if (!strcmp(km_keyname(c
), command_list
[i
].key
)) {
1322 command_list
[i
].handler();
1326 print_in_bar(COLOR_ERRMSG
, "key '%s' is not bound, press ? for help",
1330 int main(int argc
, char *argv
[])
1338 if (gui_cmdline_parser(argc
, argv
, &conf
)) {
1339 fprintf(stderr
, "parse error while reading command line\n");
1342 HANDLE_VERSION_FLAG("gui", conf
);
1343 init_theme(0, &theme
);
1344 top
.lines
= theme
.top_lines_default
;
1345 if (check_key_map_args() < 0) {
1346 fprintf(stderr
, "invalid key map\n");
1349 cf
= configfile_exists();
1350 if (!cf
&& conf
.config_file_given
) {
1351 fprintf(stderr
, "can not read config file %s\n",
1352 conf
.config_file_arg
);
1356 struct gui_cmdline_parser_params params
= {
1359 .check_required
= 0,
1360 .check_ambiguity
= 0
1362 gui_cmdline_parser_config_file(cf
, &conf
, ¶ms
);
1364 if (check_key_map_args() < 0) {
1365 fprintf(stderr
, "invalid key map in config file\n");
1368 setup_signal_handling();
1369 bot_win_rb
= ringbuffer_new(RINGBUFFER_SIZE
);
1370 initscr(); /* needed only once, always successful */
1375 ret
= do_select(GETCH_MODE
);
1378 print_in_bar(COLOR_MSG
, " ");
1379 handle_command(ret
);