xref: /dragonfly/contrib/dialog/dialog.h (revision 0720b42f)
1 /*
2  *  $Id: dialog.h,v 1.268 2015/01/25 23:53:19 tom Exp $
3  *
4  *  dialog.h -- common declarations for all dialog modules
5  *
6  *  Copyright 2000-2013,2015	Thomas E. Dickey
7  *
8  *  This program is free software; you can redistribute it and/or modify
9  *  it under the terms of the GNU Lesser General Public License, version 2.1
10  *  as published by the Free Software Foundation.
11  *
12  *  This program is distributed in the hope that it will be useful, but
13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  *  Lesser General Public License for more details.
16  *
17  *  You should have received a copy of the GNU Lesser General Public
18  *  License along with this program; if not, write to
19  *	Free Software Foundation, Inc.
20  *	51 Franklin St., Fifth Floor
21  *	Boston, MA 02110, USA.
22  *
23  *  An earlier version of this program lists as authors
24  *	Savio Lam (lam836@cs.cuhk.hk)
25  */
26 
27 #ifndef DIALOG_H_included
28 #define DIALOG_H_included 1
29 /* *INDENT-OFF* */
30 
31 #include <dlg_config.h>
32 
33 #ifdef __hpux
34 #define __HP_CURSES_COMPAT	/* workaround for getattrs, etc. */
35 #endif
36 
37 #include <sys/types.h>
38 #include <fcntl.h>
39 #include <unistd.h>
40 #include <ctype.h>
41 #include <stdlib.h>
42 #include <stdarg.h>
43 #include <string.h>
44 #include <signal.h>	/* fork() etc. */
45 #include <math.h>	/* sqrt() */
46 
47 /* header conflict with Solaris xpg4 versus <sys/regset.h> */
48 #if defined(ERR) && (ERR == 13)
49 #undef ERR
50 #endif
51 
52 #if defined(HAVE_NCURSESW_NCURSES_H)
53 #include <ncursesw/ncurses.h>
54 #elif defined(HAVE_NCURSES_NCURSES_H)
55 #include <ncurses/ncurses.h>
56 #elif defined(HAVE_NCURSES_CURSES_H)
57 #include <ncurses/curses.h>
58 #elif defined(HAVE_NCURSES_H)
59 #include <ncurses.h>
60 #else
61 #include <curses.h>
62 #if defined(HAVE_UNCTRL_H)
63 #include <unctrl.h> /* most curses.h headers include this, some do not */
64 #endif
65 #endif
66 
67 /* Solaris xpg4 renames these */
68 #ifndef KEY_MAX
69 #ifdef __KEY_MAX
70 #define KEY_MAX __KEY_MAX
71 #endif
72 #endif
73 
74 #ifndef KEY_MIN
75 #ifdef __KEY_MIN
76 #define KEY_MIN __KEY_MIN
77 #endif
78 #endif
79 
80 /* possible conflicts with <term.h> which may be included in <curses.h> */
81 #ifdef color_names
82 #undef color_names
83 #endif
84 
85 #ifdef buttons
86 #undef buttons
87 #endif
88 
89 #ifdef ENABLE_NLS
90 #include <libintl.h>
91 #include <langinfo.h>
92 #define _(s) dgettext(PACKAGE, s)
93 #else
94 #undef _
95 #define _(s) s
96 #endif
97 
98 #ifndef GCC_PRINTFLIKE
99 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
100 #endif
101 
102 #ifndef GCC_NORETURN
103 #define GCC_NORETURN /*nothing*/
104 #endif
105 
106 #ifndef GCC_UNUSED
107 #define GCC_UNUSED /*nothing*/
108 #endif
109 
110 #ifndef HAVE_WGET_WCH
111 #undef USE_WIDE_CURSES
112 #endif
113 
114 /*
115  * FIXME: a configure check would be useful
116  */
117 #ifdef __hpux
118 #undef ACS_UARROW
119 #undef ACS_DARROW
120 #undef ACS_BLOCK
121 #endif
122 
123 /*
124  * Change these if you want
125  */
126 #define USE_SHADOW TRUE
127 #define USE_COLORS TRUE
128 
129 #ifdef HAVE_COLOR
130 #define SCOLS	(COLS - (dialog_state.use_shadow ? 2 : 0))
131 #define SLINES	(LINES - (dialog_state.use_shadow ? 1 : 0))
132 #else
133 #define SCOLS	COLS
134 #define SLINES	LINES
135 #endif
136 
137 #define DLG_EXIT_ESC		255
138 #define DLG_EXIT_UNKNOWN	-2	/* never return this (internal use) */
139 #define DLG_EXIT_ERROR		-1	/* the shell sees this as 255 */
140 #define DLG_EXIT_OK		0
141 #define DLG_EXIT_CANCEL		1
142 #define DLG_EXIT_HELP		2
143 #define DLG_EXIT_EXTRA		3
144 #define DLG_EXIT_ITEM_HELP	4	/* actually DLG_EXIT_HELP */
145 
146 #define DLG_CTRL(n)	((n) & 0x1f)	/* CTRL is preferred, but conflicts */
147 
148 #define CHR_HELP	DLG_CTRL('E')
149 #define CHR_BACKSPACE	DLG_CTRL('H')
150 #define CHR_REPAINT	DLG_CTRL('L')
151 #define CHR_KILL	DLG_CTRL('U')
152 #define CHR_LITERAL	DLG_CTRL('V')
153 #define CHR_DELETE	127
154 #define CHR_NEXT	DLG_CTRL('N')
155 #define CHR_PREVIOUS	DLG_CTRL('P')
156 #define CHR_TRACE	DLG_CTRL('T')
157 
158 #define ESC		27
159 #define TAB		DLG_CTRL('I')
160 
161 #define MARGIN 1
162 #define GUTTER 2
163 #define SHADOW_ROWS 1
164 #define SHADOW_COLS 2
165 #define ARROWS_COL  5
166 
167 #define MAX_LEN 2048
168 #define BUF_SIZE (10L*1024)
169 
170 #undef  MIN
171 #define MIN(x,y) ((x) < (y) ? (x) : (y))
172 
173 #undef  MAX
174 #define MAX(x,y) ((x) > (y) ? (x) : (y))
175 
176 #define DEFAULT_SEPARATE_STR "\t"
177 #define DEFAULT_ASPECT_RATIO 9
178 /* how many spaces is a tab long (default)? */
179 #define TAB_LEN 8
180 #define WTIMEOUT_VAL        10	/* minimum amount of time needed for curses */
181 
182 #ifndef A_CHARTEXT
183 #define A_CHARTEXT 0xff
184 #endif
185 
186 #define CharOf(ch)  ((ch) & 0xff)
187 
188 #ifndef ACS_ULCORNER
189 #define ACS_ULCORNER '+'
190 #endif
191 #ifndef ACS_LLCORNER
192 #define ACS_LLCORNER '+'
193 #endif
194 #ifndef ACS_URCORNER
195 #define ACS_URCORNER '+'
196 #endif
197 #ifndef ACS_LRCORNER
198 #define ACS_LRCORNER '+'
199 #endif
200 #ifndef ACS_HLINE
201 #define ACS_HLINE '-'
202 #endif
203 #ifndef ACS_VLINE
204 #define ACS_VLINE '|'
205 #endif
206 #ifndef ACS_LTEE
207 #define ACS_LTEE '+'
208 #endif
209 #ifndef ACS_RTEE
210 #define ACS_RTEE '+'
211 #endif
212 #ifndef ACS_UARROW
213 #define ACS_UARROW '^'
214 #endif
215 #ifndef ACS_DARROW
216 #define ACS_DARROW 'v'
217 #endif
218 #ifndef ACS_BLOCK
219 #define ACS_BLOCK '#'
220 #endif
221 
222 /* these definitions may work for antique versions of curses */
223 #ifndef HAVE_GETBEGYX
224 #undef  getbegyx
225 #define getbegyx(win,y,x)	(y = (win)?(win)->_begy:ERR, x = (win)?(win)->_begx:ERR)
226 #endif
227 
228 #ifndef HAVE_GETMAXYX
229 #undef  getmaxyx
230 #define getmaxyx(win,y,x)	(y = (win)?(win)->_maxy:ERR, x = (win)?(win)->_maxx:ERR)
231 #endif
232 
233 #ifndef HAVE_GETPARYX
234 #undef  getparyx
235 #define getparyx(win,y,x)	(y = (win)?(win)->_pary:ERR, x = (win)?(win)->_parx:ERR)
236 #endif
237 
238 #if !defined(HAVE_WGETPARENT) && defined(HAVE_WINDOW__PARENT)
239 #undef  wgetparent
240 #define wgetparent(win)		((win) ? (win)->_parent : 0)
241 #endif
242 
243 #if !defined(HAVE_WSYNCUP)
244 #undef wsyncup
245 #define wsyncup(win) /* nothing */
246 #endif
247 
248 #if !defined(HAVE_WCURSYNCUP)
249 #undef wcursyncup
250 #define wcursyncup(win) /* nothing */
251 #endif
252 
253 #ifdef __cplusplus
254 extern "C" {
255 #endif
256 
257 /* these definitions may be needed for bleeding-edge curses implementations */
258 #if !(defined(HAVE_GETBEGX) && defined(HAVE_GETBEGY))
259 #undef getbegx
260 #undef getbegy
261 #define getbegx(win) dlg_getbegx(win)
262 #define getbegy(win) dlg_getbegy(win)
263 extern int dlg_getbegx(WINDOW * /*win*/);
264 extern int dlg_getbegy(WINDOW * /*win*/);
265 #endif
266 
267 #if !(defined(HAVE_GETCURX) && defined(HAVE_GETCURY))
268 #undef getcurx
269 #undef getcury
270 #define getcurx(win) dlg_getcurx(win)
271 #define getcury(win) dlg_getcury(win)
272 extern int dlg_getcurx(WINDOW * /*win*/);
273 extern int dlg_getcury(WINDOW * /*win*/);
274 #endif
275 
276 #if !(defined(HAVE_GETMAXX) && defined(HAVE_GETMAXY))
277 #undef getmaxx
278 #undef getmaxy
279 #define getmaxx(win) dlg_getmaxx(win)
280 #define getmaxy(win) dlg_getmaxy(win)
281 extern int dlg_getmaxx(WINDOW * /*win*/);
282 extern int dlg_getmaxy(WINDOW * /*win*/);
283 #endif
284 
285 #if !(defined(HAVE_GETPARX) && defined(HAVE_GETPARY))
286 #undef getparx
287 #undef getpary
288 #define getparx(win) dlg_getparx(win)
289 #define getpary(win) dlg_getpary(win)
290 extern int dlg_getparx(WINDOW * /*win*/);
291 extern int dlg_getpary(WINDOW * /*win*/);
292 #endif
293 
294 #if !(defined(HAVE_WGETPARENT) && defined(HAVE_WINDOW__PARENT))
295 #undef wgetparent
296 #define wgetparent(win) dlg_wgetparent(win)
297 extern WINDOW * dlg_wgetparent(WINDOW * /*win*/);
298 #endif
299 
300 /*
301  * This is a list of "old" names, which should be helpful in updating
302  * applications that use libdialog.  Starting with 2003/11/26, all exported
303  * symbols from libdialog have "dlg_" prefix, or "dialog_" prefix or "_dialog"
304  * suffix (or suffix "_dialog", e.g., init_dialog).
305  */
306 #ifdef __DIALOG_OLD_NAMES__
307 #define color_table                       dlg_color_table
308 #define attr_clear(win,h,w,a)             dlg_attr_clear(win,h,w,a)
309 #define auto_size(t,s,h,w,xl,mc)          dlg_auto_size(t,s,h,w,xl,mc)
310 #define auto_sizefile(t,f,h,w,xl,mc)      dlg_auto_sizefile(t,f,h,w,xl,mc)
311 #define beeping()                         dlg_beeping()
312 #define box_x_ordinate(w)                 dlg_box_x_ordinate(w)
313 #define box_y_ordinate(h)                 dlg_box_y_ordinate(h)
314 #define calc_listh(h,lh,in)               dlg_calc_listh(h,lh,in)
315 #define calc_listw(in,items,group)        dlg_calc_listw(in,items,group)
316 #define color_setup()                     dlg_color_setup()
317 #define create_rc(f)                      dlg_create_rc(f)
318 #define ctl_size(h,w)                     dlg_ctl_size(h,w)
319 #define del_window(win)                   dlg_del_window(win)
320 #define dialog_clear()                    dlg_clear()
321 #define draw_bottom_box(win)              dlg_draw_bottom_box(win)
322 #define draw_box(win,y,x,h,w,xc,bc)       dlg_draw_box(win,y,x,h,w,xc,bc)
323 #define draw_shadow(win,h,w,y,x)          dlg_draw_shadow(win,h,w,y,x)
324 #define draw_title(win,t)                 dlg_draw_title(win,t)
325 #define exiterr                           dlg_exiterr
326 #define killall_bg(n)                     dlg_killall_bg(n)
327 #define mouse_bigregion(y,x)              dlg_mouse_bigregion(y,x)
328 #define mouse_free_regions()              dlg_mouse_free_regions()
329 #define mouse_mkbigregion(y,x,h,w,n,ix,iy,m) dlg_mouse_mkbigregion(y,x,h,w,n,ix,iy,m)
330 #define mouse_mkregion(y,x,h,w,n)         dlg_mouse_mkregion(y,x,h,w,n)
331 #define mouse_region(y,x)                 dlg_mouse_region(y,x)
332 #define mouse_setbase(x,y)                dlg_mouse_setbase(x,y)
333 #define mouse_setcode(c)                  dlg_mouse_setcode(c)
334 #define mouse_wgetch(w,c)                 dlg_mouse_wgetch(w,c)
335 #define new_window(h,w,y,x)               dlg_new_window(h,w,y,x)
336 #define parse_rc()                        dlg_parse_rc()
337 #define print_autowrap(win,s,h,w)         dlg_print_autowrap(win,s,h,w)
338 #define print_size(h,w)                   dlg_print_size(h,w)
339 #define put_backtitle()                   dlg_put_backtitle()
340 #define strclone(cprompt)                 dlg_strclone(cprompt)
341 #define sub_window(win,h,w,y,x)           dlg_sub_window(win,h,w,y,x)
342 #define tab_correct_str(s)                dlg_tab_correct_str(s)
343 #endif
344 
345 /*
346  * Attribute names
347  */
348 #define DIALOG_ATR(n)                 dlg_color_table[n].atr
349 
350 #define screen_attr                   DIALOG_ATR(0)
351 #define shadow_attr                   DIALOG_ATR(1)
352 #define dialog_attr                   DIALOG_ATR(2)
353 #define title_attr                    DIALOG_ATR(3)
354 #define border_attr                   DIALOG_ATR(4)
355 #define button_active_attr            DIALOG_ATR(5)
356 #define button_inactive_attr          DIALOG_ATR(6)
357 #define button_key_active_attr        DIALOG_ATR(7)
358 #define button_key_inactive_attr      DIALOG_ATR(8)
359 #define button_label_active_attr      DIALOG_ATR(9)
360 #define button_label_inactive_attr    DIALOG_ATR(10)
361 #define inputbox_attr                 DIALOG_ATR(11)
362 #define inputbox_border_attr          DIALOG_ATR(12)
363 #define searchbox_attr                DIALOG_ATR(13)
364 #define searchbox_title_attr          DIALOG_ATR(14)
365 #define searchbox_border_attr         DIALOG_ATR(15)
366 #define position_indicator_attr       DIALOG_ATR(16)
367 #define menubox_attr                  DIALOG_ATR(17)
368 #define menubox_border_attr           DIALOG_ATR(18)
369 #define item_attr                     DIALOG_ATR(19)
370 #define item_selected_attr            DIALOG_ATR(20)
371 #define tag_attr                      DIALOG_ATR(21)
372 #define tag_selected_attr             DIALOG_ATR(22)
373 #define tag_key_attr                  DIALOG_ATR(23)
374 #define tag_key_selected_attr         DIALOG_ATR(24)
375 #define check_attr                    DIALOG_ATR(25)
376 #define check_selected_attr           DIALOG_ATR(26)
377 #define uarrow_attr                   DIALOG_ATR(27)
378 #define darrow_attr                   DIALOG_ATR(28)
379 #define itemhelp_attr                 DIALOG_ATR(29)
380 #define form_active_text_attr         DIALOG_ATR(30)
381 #define form_text_attr                DIALOG_ATR(31)
382 #define form_item_readonly_attr       DIALOG_ATR(32)
383 #define gauge_attr                    DIALOG_ATR(33)
384 #define border2_attr                  DIALOG_ATR(34)
385 #define inputbox_border2_attr         DIALOG_ATR(35)
386 #define searchbox_border2_attr        DIALOG_ATR(36)
387 #define menubox_border2_attr          DIALOG_ATR(37)
388 
389 #define DLGK_max (KEY_MAX + 256)
390 
391 /*
392  * Callbacks are used to implement the "background" tailbox.
393  */
394 struct _dlg_callback;
395 
396 typedef void (*DIALOG_FREEBACK) (struct _dlg_callback * /* p */);
397 
398 typedef struct _dlg_callback {
399     struct _dlg_callback *next;
400     FILE *input;
401     WINDOW *win;
402     bool keep_bg;	/* keep in background, on exit */
403     bool bg_task;	/* true if this is background task */
404     bool (*handle_getc)(struct _dlg_callback *p, int ch, int fkey, int *result);
405     bool keep_win;	/* true to not erase window on exit */
406     /* data for dlg_add_callback_ref */
407     struct _dlg_callback **caller;
408     DIALOG_FREEBACK freeback;
409     /* 1.1-20110107 */
410     bool (*handle_input)(struct _dlg_callback *p);
411     bool input_ready;
412 } DIALOG_CALLBACK;
413 
414 typedef struct _dlg_windows {
415     struct _dlg_windows *next;
416     WINDOW *normal;
417     WINDOW *shadow;
418 } DIALOG_WINDOWS;
419 
420 /*
421  * Global variables, which are initialized as needed
422  */
423 typedef struct {
424     DIALOG_CALLBACK *getc_callbacks;
425     DIALOG_CALLBACK *getc_redirect;
426     DIALOG_WINDOWS *all_windows;
427     DIALOG_WINDOWS *all_subwindows;
428     FILE *output;		/* option "--output-fd fd" */
429     FILE *pipe_input;		/* used for gauge widget */
430     FILE *screen_output;	/* newterm(), etc. */
431     bool screen_initialized;
432     bool use_colors;		/* use colors by default? */
433     bool use_scrollbar;		/* option "--scrollbar" */
434     bool use_shadow;		/* shadow dialog boxes by default? */
435     bool visit_items;		/* option "--visit-items" */
436     char *separate_str;		/* option "--separate-widget string" */
437     int aspect_ratio;		/* option "--aspect ratio" */
438     int output_count;		/* # of widgets that may have done output */
439     int tab_len;		/* option "--tab-len n" */
440     /* 1.0-20070227 */
441     FILE *input;		/* option "--input-fd fd" */
442 #ifdef HAVE_DLG_TRACE
443     FILE *trace_output;		/* option "--trace file" */
444 #endif
445     /* 1.1-20110106 */
446     bool no_mouse;		/* option "--no-mouse" */
447     int visit_cols;		/* option "--visit-items" */
448     /* 1.2-20130922 */
449     bool finish_string;		/* caching optimization for gauge */
450     /* 1.2-20150125 */
451     bool plain_buttons;		/* true to suppress button-label highlight */
452 } DIALOG_STATE;
453 
454 extern DIALOG_STATE dialog_state;
455 
456 /*
457  * Global variables, which dialog resets before each widget
458  */
459 typedef struct {
460     bool beep_after_signal;	/* option "--beep-after" */
461     bool beep_signal;		/* option "--beep" */
462     bool begin_set;		/* option "--begin y x" was used */
463     bool cant_kill;		/* option "--no-kill" */
464     bool colors;		/* option "--colors" */
465     bool cr_wrap;		/* option "--cr-wrap" */
466     bool defaultno;		/* option "--defaultno" */
467     bool dlg_clear_screen;	/* option "--clear" */
468     bool extra_button;		/* option "--extra-button" */
469     bool help_button;		/* option "--help-button" */
470     bool help_status;		/* option "--help-status" */
471     bool input_menu;		/* menu vs inputmenu widget */
472     bool insecure;		/* option "--insecure" */
473     bool item_help;		/* option "--item-help" */
474     bool keep_window;		/* option "--keep-window" */
475     bool nocancel;		/* option "--no-cancel" */
476     bool nocollapse;		/* option "--no-collapse" */
477     bool print_siz;		/* option "--print-size" */
478     bool separate_output;	/* option "--separate-output" */
479     bool single_quoted;		/* option "--single-quoted" */
480     bool size_err;		/* option "--size-err" */
481     bool tab_correct;		/* option "--tab-correct" */
482     bool trim_whitespace;	/* option "--trim" */
483     char *backtitle;		/* option "--backtitle backtitle" */
484     char *cancel_label;		/* option "--cancel-label string" */
485     char *default_item;		/* option "--default-item string" */
486     char *exit_label;		/* option "--exit-label string" */
487     char *extra_label;		/* option "--extra-label string" */
488     char *help_label;		/* option "--help-label string" */
489     char *input_result;
490     char *no_label;		/* option "--no-label string" */
491     char *ok_label;		/* option "--ok-label string" */
492     char *title;		/* option "--title title" */
493     char *yes_label;		/* option "--yes-label string" */
494     int begin_x;		/* option "--begin y x" (second value) */
495     int begin_y;		/* option "--begin y x" (first value) */
496     int max_input;		/* option "--max-input size" */
497     int scale_factor;		/* RESERVED */
498     int sleep_secs;		/* option "--sleep secs" */
499     int timeout_secs;		/* option "--timeout secs" */
500     unsigned input_length;	/* nonzero if input_result is allocated */
501     /* 1.0-20051207 */
502     unsigned formitem_type;	/* DIALOG_FORMITEM.type in dialog_form() */
503     /* 1.1-20070227 */
504     bool keep_tite;		/* option "--keep-tite" */
505     bool ascii_lines;		/* option "--ascii-lines" */
506     bool no_lines;		/* option "--no-lines" */
507     /* 1.1-20070930 */
508     bool nook;			/* option "--no-ok" */
509     /* 1.1-20080727 */
510     bool quoted;		/* option "--quoted" */
511     char *column_header;	/* RESERVED "--column-header" */
512     char *column_separator;	/* option "--column-separator" */
513     char *output_separator;	/* option "--output-separator" */
514     /* 1.1-20100118 */
515     char *date_format;		/* option "--date-format" */
516     char *time_format;		/* option "--time-format" */
517     /* 1.1-20110629 */
518     char *help_line;		/* option "--hline" */
519     char *help_file;		/* option "--hfile" */
520     bool in_helpfile;		/* flag to prevent recursion in --hfile */
521     bool no_nl_expand;		/* option "--no-nl-expand" */
522     /* 1.1-20120701 */
523     int default_button;		/* option "--default-button" (exit code) */
524     /* 1.1-20121218 */
525     bool no_tags;		/* option "--no-tags" */
526     bool no_items;		/* option "--no-items" */
527     /* 1.2-20130315 */
528     bool last_key;		/* option "--last-key" */
529     /* 1.2-20130902 */
530     bool help_tags;		/* option "--help-tags" */
531 } DIALOG_VARS;
532 
533 #define USE_ITEM_HELP(s)        (dialog_vars.item_help && (s) != 0)
534 
535 /*
536  * Some settings change the number of data items per row which dialog reads
537  * from a script.
538  */
539 #define DLG__NO_ITEMS		(dialog_vars.no_items ? 0 : 1)
540 #define DLG__ITEM_HELP          (dialog_vars.item_help ? 1 : 0)
541 
542 /*
543  * These are the total number of data items per row used for each widget type.
544  */
545 #define CHECKBOX_TAGS           (2 + DLG__ITEM_HELP + DLG__NO_ITEMS)
546 #define MENUBOX_TAGS            (1 + DLG__ITEM_HELP + DLG__NO_ITEMS)
547 #define FORMBOX_TAGS            (8 + DLG__ITEM_HELP)
548 #define MIXEDFORM_TAGS          (1 + FORMBOX_TAGS)
549 #define MIXEDGAUGE_TAGS         2
550 #define TREEVIEW_TAGS           (3 + DLG__ITEM_HELP + DLG__NO_ITEMS)
551 
552 extern DIALOG_VARS dialog_vars;
553 
554 #ifndef HAVE_TYPE_CHTYPE
555 #define chtype long
556 #endif
557 
558 #define UCH(ch)			((unsigned char)(ch))
559 
560 #define assert_ptr(ptr,msg) if ((ptr) == 0) dlg_exiterr("cannot allocate memory in " msg)
561 
562 #define dlg_malloc(t,n)    (t *) malloc((size_t)(n) * sizeof(t))
563 #define dlg_calloc(t,n)    (t *) calloc((size_t)(n), sizeof(t))
564 #define dlg_realloc(t,n,p) (t *) realloc((p), (n) * sizeof(t))
565 
566 /*
567  * Table for attribute- and color-values.
568  */
569 typedef struct {
570     chtype atr;
571 #ifdef HAVE_COLOR
572     int fg;
573     int bg;
574     int hilite;
575 #endif
576 #ifdef HAVE_RC_FILE
577     const char *name;
578     const char *comment;
579 #endif
580 } DIALOG_COLORS;
581 
582 extern DIALOG_COLORS dlg_color_table[];
583 
584 /*
585  * Function prototypes
586  */
587 extern const char *dialog_version(void);
588 
589 /* widgets, each in separate files */
590 extern int dialog_buildlist(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, char ** /*items*/, int /*order_mode*/);
591 extern int dialog_calendar(const char * /*title*/, const char * /*subtitle*/, int /*height*/, int /*width*/, int /*day*/, int /*month*/, int /*year*/);
592 extern int dialog_checklist(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, char ** /*items*/, int /*flag*/);
593 extern int dialog_dselect(const char * /*title*/, const char * /*path*/, int /*height*/, int /*width*/);
594 extern int dialog_editbox(const char * /*title*/, const char * /*file*/, int /*height*/, int /*width*/);
595 extern int dialog_form(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*form_height*/, int /*item_no*/, char ** /*items*/);
596 extern int dialog_fselect(const char * /*title*/, const char * /*path*/, int /*height*/, int /*width*/);
597 extern int dialog_gauge(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*percent*/);
598 extern int dialog_helpfile(const char * /*title*/, const char * /*file*/, int /*height*/, int /*width*/);
599 extern int dialog_inputbox(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, const char * /*init*/, const int /*password*/);
600 extern int dialog_menu(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*menu_height*/, int /*item_no*/, char ** /*items*/);
601 extern int dialog_mixedform(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*form_height*/, int /*item_no*/, char ** /*items*/);
602 extern int dialog_mixedgauge(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*percent*/, int /*item_no*/, char ** /*items*/);
603 extern int dialog_msgbox(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*pauseopt*/);
604 extern int dialog_pause(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*seconds*/);
605 extern int dialog_prgbox(const char * /*title*/, const char * /*cprompt*/, const char * /*command*/, int /*height*/, int /*width*/, int /*pauseopt*/);
606 extern int dialog_progressbox(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/);
607 extern int dialog_rangebox(const char * /*title*/, const char * /*file*/, int /*height*/, int /*width*/, int /*min_value*/, int /*max_value*/, int /*default_value*/);
608 extern int dialog_tailbox(const char * /*title*/, const char * /*file*/, int /*height*/, int /*width*/, int /*bg_task*/);
609 extern int dialog_textbox(const char * /*title*/, const char * /*file*/, int /*height*/, int /*width*/);
610 extern int dialog_timebox(const char * /*title*/, const char * /*subtitle*/, int /*height*/, int /*width*/, int /*hour*/, int /*minute*/, int /*second*/);
611 extern int dialog_treeview(const char * /*title*/, const char * /*subtitle*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, char ** /*items*/, int /*flag*/);
612 extern int dialog_yesno(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/);
613 
614 /* some widgets have alternate entrypoints, to allow list manipulation */
615 typedef struct {
616     char *name;
617     char *text;
618     char *help;
619     int state;
620 } DIALOG_LISTITEM;
621 
622 typedef struct {
623     unsigned type;		/* the field type (0=input, 1=password) */
624     char *name;			/* the field label */
625     int name_len;		/* ...its length */
626     int name_y;			/* ...its y-ordinate */
627     int name_x;			/* ...its x-ordinate */
628     bool name_free;		/* ...true if .name can be freed */
629     char *text;			/* the field contents */
630     int text_len;		/* ...its length on the screen */
631     int text_y;			/* ...its y-ordinate */
632     int text_x;			/* ...its x-ordinate */
633     int text_flen;		/* ...its length on screen, or 0 if no input allowed */
634     int text_ilen;		/* ...its limit on amount to be entered */
635     bool text_free;		/* ...true if .text can be freed */
636     char *help;			/* help-message, if any */
637     bool help_free;		/* ...true if .help can be freed */
638 } DIALOG_FORMITEM;
639 
640 typedef	int (DIALOG_INPUTMENU) (DIALOG_LISTITEM * /*items*/, int /*current*/, char * /*newtext*/);
641 
642 extern int dlg_checklist(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, DIALOG_LISTITEM * /*items*/, const char * /*states*/, int /*flag*/, int * /*current_item*/);
643 extern int dlg_form(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*form_height*/, int /*item_no*/, DIALOG_FORMITEM * /*items*/, int * /*current_item*/);
644 extern int dlg_menu(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*menu_height*/, int /*item_no*/, DIALOG_LISTITEM * /*items*/, int * /*current_item*/, DIALOG_INPUTMENU /*rename_menu*/);
645 extern int dlg_progressbox(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*pauseopt*/, FILE * /* fp */);
646 
647 /* argv.c */
648 extern char ** dlg_string_to_argv(char * /* blob */);
649 extern int dlg_count_argv(char ** /* argv */);
650 extern int dlg_eat_argv(int * /* argcp */, char *** /* argvp */, int /* start */, int /* count */);
651 
652 /* arrows.c */
653 extern void dlg_draw_arrows(WINDOW * /*dialog*/, int /*top_arrow*/, int /*bottom_arrow*/, int /*x*/, int /*top*/, int /*bottom*/);
654 extern void dlg_draw_arrows2(WINDOW * /*dialog*/, int /*top_arrow*/, int /*bottom_arrow*/, int /*x*/, int /*top*/, int /*bottom*/, chtype /*attr*/, chtype /*borderattr*/);
655 extern void dlg_draw_helpline(WINDOW * /*dialog*/, bool /*decorations*/);
656 extern void dlg_draw_scrollbar(WINDOW * /*dialog*/, long /* first_data */, long /* this_data */, long /* next_data */, long /* total_data */, int /* left */, int /* right */, int /*top*/, int /*bottom*/, chtype /*attr*/, chtype /*borderattr*/);
657 
658 /* buildlist.c */
659 extern int dlg_buildlist(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, DIALOG_LISTITEM * /*items*/, const char * /*states*/, int /*order_mode*/, int * /*current_item*/);
660 
661 /* buttons.c */
662 extern const char ** dlg_exit_label(void);
663 extern const char ** dlg_ok_label(void);
664 extern const char ** dlg_ok_labels(void);
665 extern const char ** dlg_yes_labels(void);
666 extern int dlg_button_count(const char ** /*labels*/);
667 extern int dlg_button_to_char(const char * /*label*/);
668 extern int dlg_button_x_step(const char ** /*labels*/, int /*limit*/, int * /*gap*/, int * /*margin*/, int * /*step*/);
669 extern int dlg_char_to_button(int /*ch*/, const char ** /*labels*/);
670 extern int dlg_exit_buttoncode(int /*button*/);
671 extern int dlg_match_char(int /*ch*/, const char * /*string*/);
672 extern int dlg_next_button(const char ** /*labels*/, int /*button*/);
673 extern int dlg_next_ok_buttonindex(int /*current*/, int /*extra*/);
674 extern int dlg_ok_buttoncode(int /*button*/);
675 extern int dlg_prev_button(const char ** /*labels*/, int /*button*/);
676 extern int dlg_prev_ok_buttonindex(int /*current*/, int /*extra*/);
677 extern int dlg_yes_buttoncode(int /*button*/);
678 extern void dlg_button_layout(const char ** /*labels*/, int * /*limit*/);
679 extern void dlg_button_sizes(const char ** /*labels*/, int /*vertical*/, int * /*longest*/, int * /*length*/);
680 extern void dlg_draw_buttons(WINDOW * /*win*/, int /*y*/, int /*x*/, const char ** /*labels*/, int /*selected*/, int /*vertical*/, int /*limit*/);
681 
682 /* columns.c */
683 extern void dlg_align_columns(char ** /* target */, int  /* per_row */, int /* num_rows */);
684 extern void dlg_free_columns(char ** /* target */, int  /* per_row */, int /* num_rows */);
685 
686 /* editbox.c */
687 extern int dlg_editbox(const char * /*title*/, char *** /*list*/, int * /*rows*/, int /*height*/, int /*width*/);
688 
689 /* formbox.c */
690 extern int dlg_default_formitem(DIALOG_FORMITEM * /*items*/);
691 extern int dlg_ordinate(const char * /*s*/);
692 extern void dlg_free_formitems(DIALOG_FORMITEM * /*items*/);
693 
694 /* guage.c */
695 extern void * dlg_allocate_gauge(const char * /* title */, const char * /* cprompt */, int /* height */, int /* width */, int /* percent */);
696 extern void * dlg_reallocate_gauge(void * /* objptr */, const char * /* title */, const char * /* cprompt */, int /* height */, int /* width */, int /* percent */);
697 extern void dlg_free_gauge(void * /* objptr */);
698 extern void dlg_update_gauge(void * /* objptr */, int /* percent */);
699 
700 /* inputstr.c */
701 extern bool dlg_edit_string(char * /*string*/, int * /*offset*/, int /*key*/, int /*fkey*/, bool /*force*/);
702 extern const int * dlg_index_columns(const char * /*string*/);
703 extern const int * dlg_index_wchars(const char * /*string*/);
704 extern int dlg_count_columns(const char * /*string*/);
705 extern int dlg_count_wchars(const char * /*string*/);
706 extern int dlg_edit_offset(char * /*string*/, int /*offset*/, int /*x_last*/);
707 extern int dlg_find_index(const int * /*list*/, int  /*limit*/, int /*to_find*/);
708 extern int dlg_limit_columns(const char * /*string*/, int /*limit*/, int /*offset*/);
709 extern void dlg_finish_string(const char * /* string */);
710 extern void dlg_show_string(WINDOW * /*win*/, const char * /*string*/, int /*offset*/, chtype /*attr*/, int /*y_base*/, int /*x_base*/, int /*x_last*/, bool /*hidden*/, bool /*force*/);
711 
712 /* menubox.c */
713 extern int dlg_dummy_menutext(DIALOG_LISTITEM * /*items*/, int /*current*/, char * /*newtext*/);
714 extern int dlg_renamed_menutext(DIALOG_LISTITEM * /*items*/, int /*current*/, char * /*newtext*/);
715 
716 /* rc.c */
717 #ifdef HAVE_RC_FILE
718 extern int dlg_parse_rc(void);
719 extern void dlg_create_rc(const char * /*filename*/);
720 #endif
721 
722 /* treeview.c */
723 extern int dlg_treeview(const char * /*title*/, const char * /*cprompt*/, int /*height*/, int /*width*/, int /*list_height*/, int /*item_no*/, DIALOG_LISTITEM * /*items*/, const char * /*states*/, int * /*depths*/, int /*flag*/, int * /*current_item*/);
724 
725 /* ui_getc.c */
726 extern int dlg_getc(WINDOW * /*win*/, int * /*fkey*/);
727 extern int dlg_getc_callbacks(int /*ch*/, int /*fkey*/, int * /*result*/);
728 extern int dlg_last_getc(void);
729 extern void dlg_add_last_key(int /*mode*/);
730 extern void dlg_add_callback(DIALOG_CALLBACK * /*p*/);
731 extern void dlg_add_callback_ref(DIALOG_CALLBACK ** /*p*/, DIALOG_FREEBACK /* cleanup */);
732 extern void dlg_flush_getc(void);
733 extern void dlg_remove_callback(DIALOG_CALLBACK * /*p*/);
734 extern void dlg_killall_bg(int *retval);
735 
736 /* util.c */
737 extern WINDOW * dlg_new_modal_window(WINDOW * /*parent*/, int /*height*/, int /*width*/, int /*y*/, int /*x*/);
738 extern WINDOW * dlg_new_window(int /*height*/, int /*width*/, int /*y*/, int /*x*/);
739 extern WINDOW * dlg_sub_window(WINDOW * /*win*/, int /*height*/, int /*width*/, int /*y*/, int /*x*/);
740 extern bool dlg_need_separator(void);
741 extern char * dlg_set_result(const char * /*string*/);
742 extern char * dlg_strclone(const char * /*cprompt*/);
743 extern char * dlg_strempty(void);
744 extern chtype dlg_asciibox(chtype /*ch*/);
745 extern chtype dlg_boxchar(chtype /*ch*/);
746 extern chtype dlg_get_attrs(WINDOW * /*win*/);
747 extern const char * dlg_print_line(WINDOW * /*win*/, chtype * /*attr*/, const char * /*prompt*/, int /*lm*/, int /*rm*/, int * /*x*/);
748 extern int dlg_box_x_ordinate(int /*width*/);
749 extern int dlg_box_y_ordinate(int /*height*/);
750 extern int dlg_calc_list_width(int /*item_no*/, DIALOG_LISTITEM * /*items*/);
751 extern int dlg_calc_listw(int /*item_no*/, char ** /*items*/, int /*group*/);
752 extern int dlg_check_scrolled(int /* key */, int /* last */, int /* page */, bool * /* show */, int * /* offset */);
753 extern int dlg_count_real_columns(const char * /*text*/);
754 extern int dlg_default_item(char ** /*items*/, int /*llen*/);
755 extern int dlg_default_listitem(DIALOG_LISTITEM * /*items*/);
756 extern int dlg_defaultno_button(void);
757 extern int dlg_default_button(void);
758 extern int dlg_max_input(int /*max_len*/);
759 extern int dlg_print_scrolled(WINDOW * /* win */, const char * /* prompt */, int /* offset */, int /* height */, int /* width */, int /* pauseopt */);
760 extern void dlg_add_help_formitem(int * /* result */, char ** /* tag */, DIALOG_FORMITEM * /* item */);
761 extern void dlg_add_help_listitem(int * /* result */, char ** /* tag */, DIALOG_LISTITEM * /* item */);
762 extern void dlg_add_quoted(char * /*string*/);
763 extern void dlg_add_result(const char * /*string*/);
764 extern void dlg_add_separator(void);
765 extern void dlg_add_string(char * /*string*/);
766 extern void dlg_attr_clear(WINDOW * /*win*/, int /*height*/, int /*width*/, chtype /*attr*/);
767 extern void dlg_auto_size(const char * /*title*/, const char * /*prompt*/, int * /*height*/, int * /*width*/, int /*boxlines*/, int /*mincols*/);
768 extern void dlg_auto_sizefile(const char * /*title*/, const char * /*file*/, int * /*height*/, int * /*width*/, int /*boxlines*/, int /*mincols*/);
769 extern void dlg_beeping(void);
770 extern void dlg_calc_listh(int * /*height*/, int * /*list_height*/, int /*item_no*/);
771 extern void dlg_clear(void);
772 extern void dlg_clr_result(void);
773 extern void dlg_ctl_size(int /*height*/, int /*width*/);
774 extern void dlg_del_window(WINDOW * /*win*/);
775 extern void dlg_does_output(void);
776 extern void dlg_draw_bottom_box(WINDOW * /*win*/);
777 extern void dlg_draw_bottom_box2(WINDOW * /*win*/, chtype /*on_left*/, chtype /*on_right*/, chtype /*on_inside*/);
778 extern void dlg_draw_box(WINDOW * /*win*/, int /*y*/, int /*x*/, int /*height*/, int /*width*/, chtype /*boxchar*/, chtype /*borderchar*/);
779 extern void dlg_draw_box2(WINDOW * /*win*/, int /*y*/, int /*x*/, int /*height*/, int /*width*/, chtype /*boxchar*/, chtype /*borderchar*/, chtype /*borderchar2*/);
780 extern void dlg_draw_title(WINDOW *win, const char *title);
781 extern void dlg_exit(int /*code*/) GCC_NORETURN;
782 extern void dlg_item_help(const char * /*txt*/);
783 extern void dlg_print_autowrap(WINDOW * /*win*/, const char * /*prompt*/, int /*height*/, int /*width*/);
784 extern void dlg_print_listitem(WINDOW * /*win*/, const char * /*text*/, int /*climit*/, bool /*first*/, int /*selected*/);
785 extern void dlg_print_size(int /*height*/, int /*width*/);
786 extern void dlg_print_text(WINDOW * /*win*/, const char * /*txt*/, int /*len*/, chtype * /*attr*/);
787 extern void dlg_put_backtitle(void);
788 extern void dlg_restore_vars(DIALOG_VARS * /* save */);
789 extern void dlg_save_vars(DIALOG_VARS * /* save */);
790 extern void dlg_set_focus(WINDOW * /*parent*/, WINDOW * /*win*/);
791 extern void dlg_tab_correct_str(char * /*prompt*/);
792 extern void dlg_trim_string(char * /*src*/);
793 extern void end_dialog(void);
794 extern void init_dialog(FILE * /*input*/, FILE * /*output*/);
795 
796 extern void dlg_exiterr(const char *, ...) GCC_NORETURN GCC_PRINTFLIKE(1,2);
797 
798 #ifdef HAVE_COLOR
799 extern chtype dlg_color_pair(int /*foreground*/, int /*background*/);
800 extern int dlg_color_count(void);
801 extern void dlg_color_setup(void);
802 extern void dlg_draw_shadow(WINDOW * /*win*/, int /*height*/, int /*width*/, int /*y*/, int /*x*/);
803 #endif
804 
805 #ifdef HAVE_STRCASECMP
806 #define dlg_strcmp(a,b) strcasecmp(a,b)
807 #else
808 extern int dlg_strcmp(const char * /*a*/, const char * /*b*/);
809 #endif
810 
811 #ifdef HAVE_DLG_TRACE
812 #define DLG_TRACE(params) dlg_trace_msg params
813 extern void dlg_trace_msg(const char *fmt, ...) GCC_PRINTFLIKE(1,2);
814 extern void dlg_trace_win(WINDOW * /*win*/);
815 extern void dlg_trace_chr(int /*ch*/, int /*fkey*/);
816 extern void dlg_trace(const char * /*fname*/);
817 #else
818 #define DLG_TRACE(params) /* nothing */
819 #define dlg_trace_win(win) /* nothing */
820 #define dlg_trace_chr(ch,fkey) /* nothing */
821 #define dlg_trace(fname) /* nothing */
822 #endif
823 
824 #ifdef KEY_RESIZE
825 extern void dlg_move_window(WINDOW * /*win*/, int /*height*/, int /*width*/, int /*y*/, int /*x*/);
826 #endif
827 
828 /*
829  * Normally "enter" means "ok".  Use this macro to handle the explicit
830  * check for DLGK_ENTER:
831  */
832 #define dlg_enter_buttoncode(code) (dialog_vars.nook ? DLG_EXIT_OK : dlg_ok_buttoncode(code))
833 
834 /*
835  * The following stuff is needed for mouse support
836  */
837 typedef struct mseRegion {
838     int x, y, X, Y, code;
839     int mode, step_x, step_y;
840     struct mseRegion *next;
841 } mseRegion;
842 
843 #if defined(NCURSES_MOUSE_VERSION)
844 
845 #define	mouse_open() mousemask(BUTTON1_CLICKED, (mmask_t *) 0)
846 #define	mouse_close() mousemask(0, (mmask_t *) 0)
847 
848 extern mseRegion * dlg_mouse_mkregion (int /*y*/, int /*x*/, int /*height*/, int /*width*/, int /*code*/);
849 extern void dlg_mouse_free_regions (void);
850 extern void dlg_mouse_mkbigregion (int /*y*/, int /*x*/, int /*height*/, int /*width*/, int /*code*/, int /*step_x*/, int /*step_y*/, int /*mode*/);
851 extern void dlg_mouse_setbase (int /*x*/, int /*y*/);
852 extern void dlg_mouse_setcode (int /*code*/);
853 
854 #define USE_MOUSE 1
855 
856 #else
857 
858 #define	mouse_open() /*nothing*/
859 #define	mouse_close() /*nothing*/
860 #define dlg_mouse_free_regions() /* nothing */
861 #define	dlg_mouse_mkregion(y, x, height, width, code) /*nothing*/
862 #define	dlg_mouse_mkbigregion(y, x, height, width, code, step_x, step_y, mode) /*nothing*/
863 #define	dlg_mouse_setbase(x, y) /*nothing*/
864 #define	dlg_mouse_setcode(c) /*nothing*/
865 
866 #define USE_MOUSE 0
867 
868 #endif
869 
870 extern mseRegion *dlg_mouse_region (int /*y*/, int /*x*/);
871 extern mseRegion *dlg_mouse_bigregion (int /*y*/, int /*x*/);
872 extern int dlg_mouse_wgetch (WINDOW * /*win*/, int * /*fkey*/);
873 extern int dlg_mouse_wgetch_nowait (WINDOW * /*win*/, int * /*fkey*/);
874 
875 #define mouse_mkbutton(y,x,len,code) dlg_mouse_mkregion(y,x,1,len,code);
876 
877 /*
878  * This is the base for fictitious keys, which activate
879  * the buttons.
880  *
881  * Mouse-generated keys are the following:
882  *   -- the first 32 are used as numbers, in addition to '0'-'9'
883  *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
884  */
885 #define M_EVENT (DLGK_max + 1)
886 
887 /*
888  * The `flag' parameter in checklist is used to select between
889  * radiolist and checklist
890  */
891 #define FLAG_CHECK 1
892 #define FLAG_RADIO 0
893 
894 /*
895  * This is used only for debugging (FIXME: should have a separate header).
896  */
897 #ifdef NO_LEAKS
898 extern void _dlg_inputstr_leaks(void);
899 #if defined(NCURSES_VERSION) && defined(HAVE__NC_FREE_AND_EXIT)
900 extern void _nc_free_and_exit(int);	/* nc_alloc.h normally not installed */
901 #endif
902 #endif
903 
904 #ifdef __cplusplus
905 }
906 #endif
907 /* *INDENT-ON* */
908 
909 #endif /* DIALOG_H_included */
910