aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/lxdialog/menubox.c
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/lxdialog/menubox.c')
-rw-r--r--scripts/lxdialog/menubox.c445
1 files changed, 0 insertions, 445 deletions
diff --git a/scripts/lxdialog/menubox.c b/scripts/lxdialog/menubox.c
deleted file mode 100644
index 91d82ba17f8d..000000000000
--- a/scripts/lxdialog/menubox.c
+++ /dev/null
@@ -1,445 +0,0 @@
1/*
2 * menubox.c -- implements the menu box
3 *
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcapw@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/*
23 * Changes by Clifford Wolf (god@clifford.at)
24 *
25 * [ 1998-06-13 ]
26 *
27 * *) A bugfix for the Page-Down problem
28 *
29 * *) Formerly when I used Page Down and Page Up, the cursor would be set
30 * to the first position in the menu box. Now lxdialog is a bit
31 * smarter and works more like other menu systems (just have a look at
32 * it).
33 *
34 * *) Formerly if I selected something my scrolling would be broken because
35 * lxdialog is re-invoked by the Menuconfig shell script, can't
36 * remember the last scrolling position, and just sets it so that the
37 * cursor is at the bottom of the box. Now it writes the temporary file
38 * lxdialog.scrltmp which contains this information. The file is
39 * deleted by lxdialog if the user leaves a submenu or enters a new
40 * one, but it would be nice if Menuconfig could make another "rm -f"
41 * just to be sure. Just try it out - you will recognise a difference!
42 *
43 * [ 1998-06-14 ]
44 *
45 * *) Now lxdialog is crash-safe against broken "lxdialog.scrltmp" files
46 * and menus change their size on the fly.
47 *
48 * *) If for some reason the last scrolling position is not saved by
49 * lxdialog, it sets the scrolling so that the selected item is in the
50 * middle of the menu box, not at the bottom.
51 *
52 * 02 January 1999, Michael Elizabeth Chastain (mec@shout.net)
53 * Reset 'scroll' to 0 if the value from lxdialog.scrltmp is bogus.
54 * This fixes a bug in Menuconfig where using ' ' to descend into menus
55 * would leave mis-synchronized lxdialog.scrltmp files lying around,
56 * fscanf would read in 'scroll', and eventually that value would get used.
57 */
58
59#include "dialog.h"
60
61static int menu_width, item_x;
62
63/*
64 * Print menu item
65 */
66static void
67print_item (WINDOW * win, const char *item, int choice, int selected, int hotkey)
68{
69 int j;
70 char menu_item[menu_width+1];
71
72 strncpy(menu_item, item, menu_width);
73 menu_item[menu_width] = 0;
74 j = first_alpha(menu_item, "YyNnMmHh");
75
76 /* Clear 'residue' of last item */
77 wattrset (win, menubox_attr);
78 wmove (win, choice, 0);
79#if OLD_NCURSES
80 {
81 int i;
82 for (i = 0; i < menu_width; i++)
83 waddch (win, ' ');
84 }
85#else
86 wclrtoeol(win);
87#endif
88 wattrset (win, selected ? item_selected_attr : item_attr);
89 mvwaddstr (win, choice, item_x, menu_item);
90 if (hotkey) {
91 wattrset (win, selected ? tag_key_selected_attr : tag_key_attr);
92 mvwaddch(win, choice, item_x+j, menu_item[j]);
93 }
94 if (selected) {
95 wmove (win, choice, item_x+1);
96 wrefresh (win);
97 }
98}
99
100/*
101 * Print the scroll indicators.
102 */
103static void
104print_arrows (WINDOW * win, int item_no, int scroll,
105 int y, int x, int height)
106{
107 int cur_y, cur_x;
108
109 getyx(win, cur_y, cur_x);
110
111 wmove(win, y, x);
112
113 if (scroll > 0) {
114 wattrset (win, uarrow_attr);
115 waddch (win, ACS_UARROW);
116 waddstr (win, "(-)");
117 }
118 else {
119 wattrset (win, menubox_attr);
120 waddch (win, ACS_HLINE);
121 waddch (win, ACS_HLINE);
122 waddch (win, ACS_HLINE);
123 waddch (win, ACS_HLINE);
124 }
125
126 y = y + height + 1;
127 wmove(win, y, x);
128
129 if ((height < item_no) && (scroll + height < item_no)) {
130 wattrset (win, darrow_attr);
131 waddch (win, ACS_DARROW);
132 waddstr (win, "(+)");
133 }
134 else {
135 wattrset (win, menubox_border_attr);
136 waddch (win, ACS_HLINE);
137 waddch (win, ACS_HLINE);
138 waddch (win, ACS_HLINE);
139 waddch (win, ACS_HLINE);
140 }
141
142 wmove(win, cur_y, cur_x);
143}
144
145/*
146 * Display the termination buttons.
147 */
148static void
149print_buttons (WINDOW *win, int height, int width, int selected)
150{
151 int x = width / 2 - 16;
152 int y = height - 2;
153
154 print_button (win, "Select", y, x, selected == 0);
155 print_button (win, " Exit ", y, x + 12, selected == 1);
156 print_button (win, " Help ", y, x + 24, selected == 2);
157
158 wmove(win, y, x+1+12*selected);
159 wrefresh (win);
160}
161
162/*
163 * Display a menu for choosing among a number of options
164 */
165int
166dialog_menu (const char *title, const char *prompt, int height, int width,
167 int menu_height, const char *current, int item_no,
168 const char * const * items)
169
170{
171 int i, j, x, y, box_x, box_y;
172 int key = 0, button = 0, scroll = 0, choice = 0, first_item = 0, max_choice;
173 WINDOW *dialog, *menu;
174 FILE *f;
175
176 max_choice = MIN (menu_height, item_no);
177
178 /* center dialog box on screen */
179 x = (COLS - width) / 2;
180 y = (LINES - height) / 2;
181
182 draw_shadow (stdscr, y, x, height, width);
183
184 dialog = newwin (height, width, y, x);
185 keypad (dialog, TRUE);
186
187 draw_box (dialog, 0, 0, height, width, dialog_attr, border_attr);
188 wattrset (dialog, border_attr);
189 mvwaddch (dialog, height - 3, 0, ACS_LTEE);
190 for (i = 0; i < width - 2; i++)
191 waddch (dialog, ACS_HLINE);
192 wattrset (dialog, dialog_attr);
193 wbkgdset (dialog, dialog_attr & A_COLOR);
194 waddch (dialog, ACS_RTEE);
195
196 if (title != NULL && strlen(title) >= width-2 ) {
197 /* truncate long title -- mec */
198 char * title2 = malloc(width-2+1);
199 memcpy( title2, title, width-2 );
200 title2[width-2] = '\0';
201 title = title2;
202 }
203
204 if (title != NULL) {
205 wattrset (dialog, title_attr);
206 mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
207 waddstr (dialog, (char *)title);
208 waddch (dialog, ' ');
209 }
210
211 wattrset (dialog, dialog_attr);
212 print_autowrap (dialog, prompt, width - 2, 1, 3);
213
214 menu_width = width - 6;
215 box_y = height - menu_height - 5;
216 box_x = (width - menu_width) / 2 - 1;
217
218 /* create new window for the menu */
219 menu = subwin (dialog, menu_height, menu_width,
220 y + box_y + 1, x + box_x + 1);
221 keypad (menu, TRUE);
222
223 /* draw a box around the menu items */
224 draw_box (dialog, box_y, box_x, menu_height + 2, menu_width + 2,
225 menubox_border_attr, menubox_attr);
226
227 /*
228 * Find length of longest item in order to center menu.
229 * Set 'choice' to default item.
230 */
231 item_x = 0;
232 for (i = 0; i < item_no; i++) {
233 item_x = MAX (item_x, MIN(menu_width, strlen (items[i * 2 + 1]) + 2));
234 if (strcmp(current, items[i*2]) == 0) choice = i;
235 }
236
237 item_x = (menu_width - item_x) / 2;
238
239 /* get the scroll info from the temp file */
240 if ( (f=fopen("lxdialog.scrltmp","r")) != NULL ) {
241 if ( (fscanf(f,"%d\n",&scroll) == 1) && (scroll <= choice) &&
242 (scroll+max_choice > choice) && (scroll >= 0) &&
243 (scroll+max_choice <= item_no) ) {
244 first_item = scroll;
245 choice = choice - scroll;
246 fclose(f);
247 } else {
248 scroll=0;
249 remove("lxdialog.scrltmp");
250 fclose(f);
251 f=NULL;
252 }
253 }
254 if ( (choice >= max_choice) || (f==NULL && choice >= max_choice/2) ) {
255 if (choice >= item_no-max_choice/2)
256 scroll = first_item = item_no-max_choice;
257 else
258 scroll = first_item = choice - max_choice/2;
259 choice = choice - scroll;
260 }
261
262 /* Print the menu */
263 for (i=0; i < max_choice; i++) {
264 print_item (menu, items[(first_item + i) * 2 + 1], i, i == choice,
265 (items[(first_item + i)*2][0] != ':'));
266 }
267
268 wnoutrefresh (menu);
269
270 print_arrows(dialog, item_no, scroll,
271 box_y, box_x+item_x+1, menu_height);
272
273 print_buttons (dialog, height, width, 0);
274 wmove (menu, choice, item_x+1);
275 wrefresh (menu);
276
277 while (key != ESC) {
278 key = wgetch(menu);
279
280 if (key < 256 && isalpha(key)) key = tolower(key);
281
282 if (strchr("ynmh", key))
283 i = max_choice;
284 else {
285 for (i = choice+1; i < max_choice; i++) {
286 j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh");
287 if (key == tolower(items[(scroll+i)*2+1][j]))
288 break;
289 }
290 if (i == max_choice)
291 for (i = 0; i < max_choice; i++) {
292 j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh");
293 if (key == tolower(items[(scroll+i)*2+1][j]))
294 break;
295 }
296 }
297
298 if (i < max_choice ||
299 key == KEY_UP || key == KEY_DOWN ||
300 key == '-' || key == '+' ||
301 key == KEY_PPAGE || key == KEY_NPAGE) {
302
303 print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
304 (items[(scroll+choice)*2][0] != ':'));
305
306 if (key == KEY_UP || key == '-') {
307 if (choice < 2 && scroll) {
308 /* Scroll menu down */
309 scrollok (menu, TRUE);
310 wscrl (menu, -1);
311 scrollok (menu, FALSE);
312
313 scroll--;
314
315 print_item (menu, items[scroll * 2 + 1], 0, FALSE,
316 (items[scroll*2][0] != ':'));
317 } else
318 choice = MAX(choice - 1, 0);
319
320 } else if (key == KEY_DOWN || key == '+') {
321
322 print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
323 (items[(scroll+choice)*2][0] != ':'));
324
325 if ((choice > max_choice-3) &&
326 (scroll + max_choice < item_no)
327 ) {
328 /* Scroll menu up */
329 scrollok (menu, TRUE);
330 wscrl (menu, 1);
331 scrollok (menu, FALSE);
332
333 scroll++;
334
335 print_item (menu, items[(scroll+max_choice-1)*2+1],
336 max_choice-1, FALSE,
337 (items[(scroll+max_choice-1)*2][0] != ':'));
338 } else
339 choice = MIN(choice+1, max_choice-1);
340
341 } else if (key == KEY_PPAGE) {
342 scrollok (menu, TRUE);
343 for (i=0; (i < max_choice); i++) {
344 if (scroll > 0) {
345 wscrl (menu, -1);
346 scroll--;
347 print_item (menu, items[scroll * 2 + 1], 0, FALSE,
348 (items[scroll*2][0] != ':'));
349 } else {
350 if (choice > 0)
351 choice--;
352 }
353 }
354 scrollok (menu, FALSE);
355
356 } else if (key == KEY_NPAGE) {
357 for (i=0; (i < max_choice); i++) {
358 if (scroll+max_choice < item_no) {
359 scrollok (menu, TRUE);
360 wscrl (menu, 1);
361 scrollok (menu, FALSE);
362 scroll++;
363 print_item (menu, items[(scroll+max_choice-1)*2+1],
364 max_choice-1, FALSE,
365 (items[(scroll+max_choice-1)*2][0] != ':'));
366 } else {
367 if (choice+1 < max_choice)
368 choice++;
369 }
370 }
371
372 } else
373 choice = i;
374
375 print_item (menu, items[(scroll+choice)*2+1], choice, TRUE,
376 (items[(scroll+choice)*2][0] != ':'));
377
378 print_arrows(dialog, item_no, scroll,
379 box_y, box_x+item_x+1, menu_height);
380
381 wnoutrefresh (dialog);
382 wrefresh (menu);
383
384 continue; /* wait for another key press */
385 }
386
387 switch (key) {
388 case KEY_LEFT:
389 case TAB:
390 case KEY_RIGHT:
391 button = ((key == KEY_LEFT ? --button : ++button) < 0)
392 ? 2 : (button > 2 ? 0 : button);
393
394 print_buttons(dialog, height, width, button);
395 wrefresh (menu);
396 break;
397 case ' ':
398 case 's':
399 case 'y':
400 case 'n':
401 case 'm':
402 case '/':
403 /* save scroll info */
404 if ( (f=fopen("lxdialog.scrltmp","w")) != NULL ) {
405 fprintf(f,"%d\n",scroll);
406 fclose(f);
407 }
408 delwin (dialog);
409 fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
410 switch (key) {
411 case 's': return 3;
412 case 'y': return 3;
413 case 'n': return 4;
414 case 'm': return 5;
415 case ' ': return 6;
416 case '/': return 7;
417 }
418 return 0;
419 case 'h':
420 case '?':
421 button = 2;
422 case '\n':
423 delwin (dialog);
424 if (button == 2)
425 fprintf(stderr, "%s \"%s\"\n",
426 items[(scroll + choice) * 2],
427 items[(scroll + choice) * 2 + 1] +
428 first_alpha(items[(scroll + choice) * 2 + 1],""));
429 else
430 fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
431
432 remove("lxdialog.scrltmp");
433 return button;
434 case 'e':
435 case 'x':
436 key = ESC;
437 case ESC:
438 break;
439 }
440 }
441
442 delwin (dialog);
443 remove("lxdialog.scrltmp");
444 return -1; /* ESC pressed */
445}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 02:35:50 -0500