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1/*␊
2 * util.c␊
3 *␊
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)␊
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)␊
6 *␊
7 * This program is free software; you can redistribute it and/or␊
8 * modify it under the terms of the GNU General Public License␊
9 * as published by the Free Software Foundation; either version 2␊
10 * of the License, or (at your option) any later version.␊
11 *␊
12 * This program is distributed in the hope that it will be useful,␊
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of␊
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the␊
15 * GNU General Public License for more details.␊
16 *␊
17 * You should have received a copy of the GNU General Public License␊
18 * along with this program; if not, write to the Free Software␊
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.␊
20 */␊
21␊
22#include <stdarg.h>␊
23␊
24#include "dialog.h"␊
25␊
26struct dialog_info dlg;␊
27␊
28static void set_mono_theme(void)␊
29{␊
30␉dlg.screen.atr = A_NORMAL;␊
31␉dlg.shadow.atr = A_NORMAL;␊
32␉dlg.dialog.atr = A_NORMAL;␊
33␉dlg.title.atr = A_BOLD;␊
34␉dlg.border.atr = A_NORMAL;␊
35␉dlg.button_active.atr = A_REVERSE;␊
36␉dlg.button_inactive.atr = A_DIM;␊
37␉dlg.button_key_active.atr = A_REVERSE;␊
38␉dlg.button_key_inactive.atr = A_BOLD;␊
39␉dlg.button_label_active.atr = A_REVERSE;␊
40␉dlg.button_label_inactive.atr = A_NORMAL;␊
41␉dlg.inputbox.atr = A_NORMAL;␊
42␉dlg.inputbox_border.atr = A_NORMAL;␊
43␉dlg.searchbox.atr = A_NORMAL;␊
44␉dlg.searchbox_title.atr = A_BOLD;␊
45␉dlg.searchbox_border.atr = A_NORMAL;␊
46␉dlg.position_indicator.atr = A_BOLD;␊
47␉dlg.menubox.atr = A_NORMAL;␊
48␉dlg.menubox_border.atr = A_NORMAL;␊
49␉dlg.item.atr = A_NORMAL;␊
50␉dlg.item_selected.atr = A_REVERSE;␊
51␉dlg.tag.atr = A_BOLD;␊
52␉dlg.tag_selected.atr = A_REVERSE;␊
53␉dlg.tag_key.atr = A_BOLD;␊
54␉dlg.tag_key_selected.atr = A_REVERSE;␊
55␉dlg.check.atr = A_BOLD;␊
56␉dlg.check_selected.atr = A_REVERSE;␊
57␉dlg.uarrow.atr = A_BOLD;␊
58␉dlg.darrow.atr = A_BOLD;␊
59}␊
60␊
61#define DLG_COLOR(dialog, f, b, h) \␊
62do { \␊
63␉dlg.dialog.fg = (f); \␊
64␉dlg.dialog.bg = (b); \␊
65␉dlg.dialog.hl = (h); \␊
66} while (0)␊
67␊
68static void set_classic_theme(void)␊
69{␊
70␉DLG_COLOR(screen, COLOR_CYAN, COLOR_BLUE, true);␊
71␉DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, true);␊
72␉DLG_COLOR(dialog, COLOR_BLACK, COLOR_WHITE, false);␊
73␉DLG_COLOR(title, COLOR_YELLOW, COLOR_WHITE, true);␊
74␉DLG_COLOR(border, COLOR_WHITE, COLOR_WHITE, true);␊
75␉DLG_COLOR(button_active, COLOR_WHITE, COLOR_BLUE, true);␊
76␉DLG_COLOR(button_inactive, COLOR_BLACK, COLOR_WHITE, false);␊
77␉DLG_COLOR(button_key_active, COLOR_WHITE, COLOR_BLUE, true);␊
78␉DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_WHITE, false);␊
79␉DLG_COLOR(button_label_active, COLOR_YELLOW, COLOR_BLUE, true);␊
80␉DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_WHITE, true);␊
81␉DLG_COLOR(inputbox, COLOR_BLACK, COLOR_WHITE, false);␊
82␉DLG_COLOR(inputbox_border, COLOR_BLACK, COLOR_WHITE, false);␊
83␉DLG_COLOR(searchbox, COLOR_BLACK, COLOR_WHITE, false);␊
84␉DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_WHITE, true);␊
85␉DLG_COLOR(searchbox_border, COLOR_WHITE, COLOR_WHITE, true);␊
86␉DLG_COLOR(position_indicator, COLOR_YELLOW, COLOR_WHITE, true);␊
87␉DLG_COLOR(menubox, COLOR_BLACK, COLOR_WHITE, false);␊
88␉DLG_COLOR(menubox_border, COLOR_WHITE, COLOR_WHITE, true);␊
89␉DLG_COLOR(item, COLOR_BLACK, COLOR_WHITE, false);␊
90␉DLG_COLOR(item_selected, COLOR_WHITE, COLOR_BLUE, true);␊
91␉DLG_COLOR(tag, COLOR_YELLOW, COLOR_WHITE, true);␊
92␉DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_BLUE, true);␊
93␉DLG_COLOR(tag_key, COLOR_YELLOW, COLOR_WHITE, true);␊
94␉DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_BLUE, true);␊
95␉DLG_COLOR(check, COLOR_BLACK, COLOR_WHITE, false);␊
96␉DLG_COLOR(check_selected, COLOR_WHITE, COLOR_BLUE, true);␊
97␉DLG_COLOR(uarrow, COLOR_GREEN, COLOR_WHITE, true);␊
98␉DLG_COLOR(darrow, COLOR_GREEN, COLOR_WHITE, true);␊
99}␊
100␊
101static void set_blackbg_theme(void)␊
102{␊
103␉DLG_COLOR(screen, COLOR_RED, COLOR_BLACK, true);␊
104␉DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);␊
105␉DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);␊
106␉DLG_COLOR(title, COLOR_RED, COLOR_BLACK, false);␊
107␉DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);␊
108␊
109␉DLG_COLOR(button_active, COLOR_YELLOW, COLOR_RED, false);␊
110␉DLG_COLOR(button_inactive, COLOR_YELLOW, COLOR_BLACK, false);␊
111␉DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_RED, true);␊
112␉DLG_COLOR(button_key_inactive, COLOR_RED, COLOR_BLACK, false);␊
113␉DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_RED, false);␊
114␉DLG_COLOR(button_label_inactive, COLOR_BLACK, COLOR_BLACK, true);␊
115␊
116␉DLG_COLOR(inputbox, COLOR_YELLOW, COLOR_BLACK, false);␊
117␉DLG_COLOR(inputbox_border, COLOR_YELLOW, COLOR_BLACK, false);␊
118␊
119␉DLG_COLOR(searchbox, COLOR_YELLOW, COLOR_BLACK, false);␊
120␉DLG_COLOR(searchbox_title, COLOR_YELLOW, COLOR_BLACK, true);␊
121␉DLG_COLOR(searchbox_border, COLOR_BLACK, COLOR_BLACK, true);␊
122␊
123␉DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK, false);␊
124␊
125␉DLG_COLOR(menubox, COLOR_YELLOW, COLOR_BLACK, false);␊
126␉DLG_COLOR(menubox_border, COLOR_BLACK, COLOR_BLACK, true);␊
127␊
128␉DLG_COLOR(item, COLOR_WHITE, COLOR_BLACK, false);␊
129␉DLG_COLOR(item_selected, COLOR_WHITE, COLOR_RED, false);␊
130␊
131␉DLG_COLOR(tag, COLOR_RED, COLOR_BLACK, false);␊
132␉DLG_COLOR(tag_selected, COLOR_YELLOW, COLOR_RED, true);␊
133␉DLG_COLOR(tag_key, COLOR_RED, COLOR_BLACK, false);␊
134␉DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED, true);␊
135␊
136␉DLG_COLOR(check, COLOR_YELLOW, COLOR_BLACK, false);␊
137␉DLG_COLOR(check_selected, COLOR_YELLOW, COLOR_RED, true);␊
138␊
139␉DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);␊
140␉DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);␊
141}␊
142␊
143static void set_bluetitle_theme(void)␊
144{␊
145␉set_classic_theme();␊
146␉DLG_COLOR(title, COLOR_BLUE, COLOR_WHITE, true);␊
147␉DLG_COLOR(button_key_active, COLOR_YELLOW, COLOR_BLUE, true);␊
148␉DLG_COLOR(button_label_active, COLOR_WHITE, COLOR_BLUE, true);␊
149␉DLG_COLOR(searchbox_title, COLOR_BLUE, COLOR_WHITE, true);␊
150␉DLG_COLOR(position_indicator, COLOR_BLUE, COLOR_WHITE, true);␊
151␉DLG_COLOR(tag, COLOR_BLUE, COLOR_WHITE, true);␊
152␉DLG_COLOR(tag_key, COLOR_BLUE, COLOR_WHITE, true);␊
153␊
154}␊
155␊
156/*␊
157 * Select color theme␊
158 */␊
159static int set_theme(const char *theme)␊
160{␊
161␉int use_color = 1;␊
162␉if (!theme)␊
163␉␉set_bluetitle_theme();␊
164␉else if (strcmp(theme, "classic") == 0)␊
165␉␉set_classic_theme();␊
166␉else if (strcmp(theme, "bluetitle") == 0)␊
167␉␉set_bluetitle_theme();␊
168␉else if (strcmp(theme, "blackbg") == 0)␊
169␉␉set_blackbg_theme();␊
170␉else if (strcmp(theme, "mono") == 0)␊
171␉␉use_color = 0;␊
172␊
173␉return use_color;␊
174}␊
175␊
176static void init_one_color(struct dialog_color *color)␊
177{␊
178␉static int pair = 0;␊
179␊
180␉pair++;␊
181␉init_pair(pair, color->fg, color->bg);␊
182␉if (color->hl)␊
183␉␉color->atr = A_BOLD | COLOR_PAIR(pair);␊
184␉else␊
185␉␉color->atr = COLOR_PAIR(pair);␊
186}␊
187␊
188static void init_dialog_colors(void)␊
189{␊
190␉init_one_color(&dlg.screen);␊
191␉init_one_color(&dlg.shadow);␊
192␉init_one_color(&dlg.dialog);␊
193␉init_one_color(&dlg.title);␊
194␉init_one_color(&dlg.border);␊
195␉init_one_color(&dlg.button_active);␊
196␉init_one_color(&dlg.button_inactive);␊
197␉init_one_color(&dlg.button_key_active);␊
198␉init_one_color(&dlg.button_key_inactive);␊
199␉init_one_color(&dlg.button_label_active);␊
200␉init_one_color(&dlg.button_label_inactive);␊
201␉init_one_color(&dlg.inputbox);␊
202␉init_one_color(&dlg.inputbox_border);␊
203␉init_one_color(&dlg.searchbox);␊
204␉init_one_color(&dlg.searchbox_title);␊
205␉init_one_color(&dlg.searchbox_border);␊
206␉init_one_color(&dlg.position_indicator);␊
207␉init_one_color(&dlg.menubox);␊
208␉init_one_color(&dlg.menubox_border);␊
209␉init_one_color(&dlg.item);␊
210␉init_one_color(&dlg.item_selected);␊
211␉init_one_color(&dlg.tag);␊
212␉init_one_color(&dlg.tag_selected);␊
213␉init_one_color(&dlg.tag_key);␊
214␉init_one_color(&dlg.tag_key_selected);␊
215␉init_one_color(&dlg.check);␊
216␉init_one_color(&dlg.check_selected);␊
217␉init_one_color(&dlg.uarrow);␊
218␉init_one_color(&dlg.darrow);␊
219}␊
220␊
221/*␊
222 * Setup for color display␊
223 */␊
224static void color_setup(const char *theme)␊
225{␊
226␉int use_color;␊
227␊
228␉use_color = set_theme(theme);␊
229␉if (use_color && has_colors()) {␊
230␉␉start_color();␊
231␉␉init_dialog_colors();␊
232␉} else␊
233␉␉set_mono_theme();␊
234}␊
235␊
236/*␊
237 * Set window to attribute 'attr'␊
238 */␊
239void attr_clear(WINDOW * win, int height, int width, chtype attr)␊
240{␊
241␉int i, j;␊
242␊
243␉wattrset(win, attr);␊
244␉for (i = 0; i < height; i++) {␊
245␉␉wmove(win, i, 0);␊
246␉␉for (j = 0; j < width; j++)␊
247␉␉␉waddch(win, ' ');␊
248␉}␊
249␉touchwin(win);␊
250}␊
251␊
252void dialog_clear(void)␊
253{␊
254␉attr_clear(stdscr, LINES, COLS, dlg.screen.atr);␊
255␉/* Display background title if it exists ... - SLH */␊
256␉if (dlg.backtitle != NULL) {␊
257␉␉int i;␊
258␊
259␉␉wattrset(stdscr, dlg.screen.atr);␊
260␉␉mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);␊
261␉␉wmove(stdscr, 1, 1);␊
262␉␉for (i = 1; i < COLS - 1; i++)␊
263␉␉␉waddch(stdscr, ACS_HLINE);␊
264␉}␊
265␉wnoutrefresh(stdscr);␊
266}␊
267␊
268/*␊
269 * Do some initialization for dialog␊
270 */␊
271int init_dialog(const char *backtitle)␊
272{␊
273␉int height, width;␊
274␊
275␉initscr();␉␉/* Init curses */␊
276␉getmaxyx(stdscr, height, width);␊
277␉if (height < 19 || width < 80) {␊
278␉␉endwin();␊
279␉␉return -ERRDISPLAYTOOSMALL;␊
280␉}␊
281␊
282␉dlg.backtitle = backtitle;␊
283␉color_setup(getenv("MENUCONFIG_COLOR"));␊
284␊
285␉keypad(stdscr, TRUE);␊
286␉cbreak();␊
287␉noecho();␊
288␉dialog_clear();␊
289␊
290␉return 0;␊
291}␊
292␊
293void set_dialog_backtitle(const char *backtitle)␊
294{␊
295␉dlg.backtitle = backtitle;␊
296}␊
297␊
298/*␊
299 * End using dialog functions.␊
300 */␊
301void end_dialog(int x, int y)␊
302{␊
303␉/* move cursor back to original position */␊
304␉move(y, x);␊
305␉refresh();␊
306␉endwin();␊
307}␊
308␊
309/* Print the title of the dialog. Center the title and truncate␊
310 * tile if wider than dialog (- 2 chars).␊
311 **/␊
312void print_title(WINDOW *dialog, const char *title, int width)␊
313{␊
314␉if (title) {␊
315␉␉int tlen = MIN(width - 2, strlen(title));␊
316␉␉wattrset(dialog, dlg.title.atr);␊
317␉␉mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');␊
318␉␉mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);␊
319␉␉waddch(dialog, ' ');␊
320␉}␊
321}␊
322␊
323/*␊
324 * Print a string of text in a window, automatically wrap around to the␊
325 * next line if the string is too long to fit on one line. Newline␊
326 * characters '\n' are replaced by spaces. We start on a new line␊
327 * if there is no room for at least 4 nonblanks following a double-space.␊
328 */␊
329void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)␊
330{␊
331␉int newl, cur_x, cur_y;␊
332␉int i, prompt_len, room, wlen;␊
333␉char tempstr[MAX_LEN + 1], *word, *sp, *sp2;␊
334␊
335␉strcpy(tempstr, prompt);␊
336␊
337␉prompt_len = strlen(tempstr);␊
338␊
339␉/*␊
340␉ * Remove newlines␊
341␉ */␊
342␉for (i = 0; i < prompt_len; i++) {␊
343␉␉if (tempstr[i] == '\n')␊
344␉␉␉tempstr[i] = ' ';␊
345␉}␊
346␊
347␉if (prompt_len <= width - x * 2) {␉/* If prompt is short */␊
348␉␉wmove(win, y, (width - prompt_len) / 2);␊
349␉␉waddstr(win, tempstr);␊
350␉} else {␊
351␉␉cur_x = x;␊
352␉␉cur_y = y;␊
353␉␉newl = 1;␊
354␉␉word = tempstr;␊
355␉␉while (word && *word) {␊
356␉␉␉sp = strchr(word, ' ');␊
357␉␉␉if (sp)␊
358␉␉␉␉*sp++ = 0;␊
359␊
360␉␉␉/* Wrap to next line if either the word does not fit,␊
361␉␉␉ or it is the first word of a new sentence, and it is␊
362␉␉␉ short, and the next word does not fit. */␊
363␉␉␉room = width - cur_x;␊
364␉␉␉wlen = strlen(word);␊
365␉␉␉if (wlen > room ||␊
366␉␉␉ (newl && wlen < 4 && sp␊
367␉␉␉ && wlen + 1 + strlen(sp) > room␊
368␉␉␉ && (!(sp2 = strchr(sp, ' '))␊
369␉␉␉␉ || wlen + 1 + (sp2 - sp) > room))) {␊
370␉␉␉␉cur_y++;␊
371␉␉␉␉cur_x = x;␊
372␉␉␉}␊
373␉␉␉wmove(win, cur_y, cur_x);␊
374␉␉␉waddstr(win, word);␊
375␉␉␉getyx(win, cur_y, cur_x);␊
376␉␉␉cur_x++;␊
377␉␉␉if (sp && *sp == ' ') {␊
378␉␉␉␉cur_x++;␉/* double space */␊
379␉␉␉␉while (*++sp == ' ') ;␊
380␉␉␉␉newl = 1;␊
381␉␉␉} else␊
382␉␉␉␉newl = 0;␊
383␉␉␉word = sp;␊
384␉␉}␊
385␉}␊
386}␊
387␊
388/*␊
389 * Print a button␊
390 */␊
391void print_button(WINDOW * win, const char *label, int y, int x, int selected)␊
392{␊
393␉int i, temp;␊
394␊
395␉wmove(win, y, x);␊
396␉wattrset(win, selected ? dlg.button_active.atr␊
397␉␉ : dlg.button_inactive.atr);␊
398␉waddstr(win, "<");␊
399␉temp = strspn(label, " ");␊
400␉label += temp;␊
401␉wattrset(win, selected ? dlg.button_label_active.atr␊
402␉␉ : dlg.button_label_inactive.atr);␊
403␉for (i = 0; i < temp; i++)␊
404␉␉waddch(win, ' ');␊
405␉wattrset(win, selected ? dlg.button_key_active.atr␊
406␉␉ : dlg.button_key_inactive.atr);␊
407␉waddch(win, label[0]);␊
408␉wattrset(win, selected ? dlg.button_label_active.atr␊
409␉␉ : dlg.button_label_inactive.atr);␊
410␉waddstr(win, (char *)label + 1);␊
411␉wattrset(win, selected ? dlg.button_active.atr␊
412␉␉ : dlg.button_inactive.atr);␊
413␉waddstr(win, ">");␊
414␉wmove(win, y, x + temp + 1);␊
415}␊
416␊
417/*␊
418 * Draw a rectangular box with line drawing characters␊
419 */␊
420void␊
421draw_box(WINDOW * win, int y, int x, int height, int width,␊
422␉ chtype box, chtype border)␊
423{␊
424␉int i, j;␊
425␊
426␉wattrset(win, 0);␊
427␉for (i = 0; i < height; i++) {␊
428␉␉wmove(win, y + i, x);␊
429␉␉for (j = 0; j < width; j++)␊
430␉␉␉if (!i && !j)␊
431␉␉␉␉waddch(win, border | ACS_ULCORNER);␊
432␉␉␉else if (i == height - 1 && !j)␊
433␉␉␉␉waddch(win, border | ACS_LLCORNER);␊
434␉␉␉else if (!i && j == width - 1)␊
435␉␉␉␉waddch(win, box | ACS_URCORNER);␊
436␉␉␉else if (i == height - 1 && j == width - 1)␊
437␉␉␉␉waddch(win, box | ACS_LRCORNER);␊
438␉␉␉else if (!i)␊
439␉␉␉␉waddch(win, border | ACS_HLINE);␊
440␉␉␉else if (i == height - 1)␊
441␉␉␉␉waddch(win, box | ACS_HLINE);␊
442␉␉␉else if (!j)␊
443␉␉␉␉waddch(win, border | ACS_VLINE);␊
444␉␉␉else if (j == width - 1)␊
445␉␉␉␉waddch(win, box | ACS_VLINE);␊
446␉␉␉else␊
447␉␉␉␉waddch(win, box | ' ');␊
448␉}␊
449}␊
450␊
451/*␊
452 * Draw shadows along the right and bottom edge to give a more 3D look␊
453 * to the boxes␊
454 */␊
455void draw_shadow(WINDOW * win, int y, int x, int height, int width)␊
456{␊
457␉int i;␊
458␊
459␉if (has_colors()) {␉/* Whether terminal supports color? */␊
460␉␉wattrset(win, dlg.shadow.atr);␊
461␉␉wmove(win, y + height, x + 2);␊
462␉␉for (i = 0; i < width; i++)␊
463␉␉␉waddch(win, winch(win) & A_CHARTEXT);␊
464␉␉for (i = y + 1; i < y + height + 1; i++) {␊
465␉␉␉wmove(win, i, x + width);␊
466␉␉␉waddch(win, winch(win) & A_CHARTEXT);␊
467␉␉␉waddch(win, winch(win) & A_CHARTEXT);␊
468␉␉}␊
469␉␉wnoutrefresh(win);␊
470␉}␊
471}␊
472␊
473/*␊
474 * Return the position of the first alphabetic character in a string.␊
475 */␊
476int first_alpha(const char *string, const char *exempt)␊
477{␊
478␉int i, in_paren = 0, c;␊
479␊
480␉for (i = 0; i < strlen(string); i++) {␊
481␉␉c = tolower(string[i]);␊
482␊
483␉␉if (strchr("<[(", c))␊
484␉␉␉++in_paren;␊
485␉␉if (strchr(">])", c) && in_paren > 0)␊
486␉␉␉--in_paren;␊
487␊
488␉␉if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)␊
489␉␉␉return i;␊
490␉}␊
491␊
492␉return 0;␊
493}␊
494␊
495/*␊
496 * ncurses uses ESC to detect escaped char sequences. This resutl in␊
497 * a small timeout before ESC is actually delivered to the application.␊
498 * lxdialog suggest <ESC> <ESC> which is correctly translated to two␊
499 * times esc. But then we need to ignore the second esc to avoid stepping␊
500 * out one menu too much. Filter away all escaped key sequences since␊
501 * keypad(FALSE) turn off ncurses support for escape sequences - and thats␊
502 * needed to make notimeout() do as expected.␊
503 */␊
504int on_key_esc(WINDOW *win)␊
505{␊
506␉int key;␊
507␉int key2;␊
508␉int key3;␊
509␊
510␉nodelay(win, TRUE);␊
511␉keypad(win, FALSE);␊
512␉key = wgetch(win);␊
513␉key2 = wgetch(win);␊
514␉do {␊
515␉␉key3 = wgetch(win);␊
516␉} while (key3 != ERR);␊
517␉nodelay(win, FALSE);␊
518␉keypad(win, TRUE);␊
519␉if (key == KEY_ESC && key2 == ERR)␊
520␉␉return KEY_ESC;␊
521␉else if (key != ERR && key != KEY_ESC && key2 == ERR)␊
522␉␉ungetch(key);␊
523␊
524␉return -1;␊
525}␊
526␊
527/* redraw screen in new size */␊
528int on_key_resize(void)␊
529{␊
530␉dialog_clear();␊
531␉return KEY_RESIZE;␊
532}␊
533␊
534struct dialog_list *item_cur;␊
535struct dialog_list item_nil;␊
536struct dialog_list *item_head;␊
537␊
538void item_reset(void)␊
539{␊
540␉struct dialog_list *p, *next;␊
541␊
542␉for (p = item_head; p; p = next) {␊
543␉␉next = p->next;␊
544␉␉free(p);␊
545␉}␊
546␉item_head = NULL;␊
547␉item_cur = &item_nil;␊
548}␊
549␊
550void item_make(const char *fmt, ...)␊
551{␊
552␉va_list ap;␊
553␉struct dialog_list *p = malloc(sizeof(*p));␊
554␊
555␉if (item_head)␊
556␉␉item_cur->next = p;␊
557␉else␊
558␉␉item_head = p;␊
559␉item_cur = p;␊
560␉memset(p, 0, sizeof(*p));␊
561␊
562␉va_start(ap, fmt);␊
563␉vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);␊
564␉va_end(ap);␊
565}␊
566␊
567void item_add_str(const char *fmt, ...)␊
568{␊
569␉va_list ap;␊
570 size_t avail;␊
571␊
572␉avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);␊
573␊
574␉va_start(ap, fmt);␊
575␉vsnprintf(item_cur->node.str + strlen(item_cur->node.str),␊
576␉␉ avail, fmt, ap);␊
577␉item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';␊
578␉va_end(ap);␊
579}␊
580␊
581void item_set_tag(char tag)␊
582{␊
583␉item_cur->node.tag = tag;␊
584}␊
585void item_set_data(void *ptr)␊
586{␊
587␉item_cur->node.data = ptr;␊
588}␊
589␊
590void item_set_selected(int val)␊
591{␊
592␉item_cur->node.selected = val;␊
593}␊
594␊
595int item_activate_selected(void)␊
596{␊
597␉item_foreach()␊
598␉␉if (item_is_selected())␊
599␉␉␉return 1;␊
600␉return 0;␊
601}␊
602␊
603void *item_data(void)␊
604{␊
605␉return item_cur->node.data;␊
606}␊
607␊
608char item_tag(void)␊
609{␊
610␉return item_cur->node.tag;␊
611}␊
612␊
613int item_count(void)␊
614{␊
615␉int n = 0;␊
616␉struct dialog_list *p;␊
617␊
618␉for (p = item_head; p; p = p->next)␊
619␉␉n++;␊
620␉return n;␊
621}␊
622␊
623void item_set(int n)␊
624{␊
625␉int i = 0;␊
626␉item_foreach()␊
627␉␉if (i++ == n)␊
628␉␉␉return;␊
629}␊
630␊
631int item_n(void)␊
632{␊
633␉int n = 0;␊
634␉struct dialog_list *p;␊
635␊
636␉for (p = item_head; p; p = p->next) {␊
637␉␉if (p == item_cur)␊
638␉␉␉return n;␊
639␉␉n++;␊
640␉}␊
641␉return 0;␊
642}␊
643␊
644const char *item_str(void)␊
645{␊
646␉return item_cur->node.str;␊
647}␊
648␊
649int item_is_selected(void)␊
650{␊
651␉return (item_cur->node.selected != 0);␊
652}␊
653␊
654int item_is_tag(char tag)␊
655{␊
656␉return (item_cur->node.tag == tag);␊
657}␊
658

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