Commit | Line | Data |
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0c874100 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
1da177e4 LT |
2 | /* |
3 | * checklist.c -- implements the checklist box | |
4 | * | |
5 | * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) | |
6 | * Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension | |
7 | * Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two | |
8 | * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) | |
1da177e4 LT |
9 | */ |
10 | ||
11 | #include "dialog.h" | |
12 | ||
00213b17 | 13 | static int list_width, check_x, item_x; |
1da177e4 LT |
14 | |
15 | /* | |
16 | * Print list item | |
17 | */ | |
2982de69 | 18 | static void print_item(WINDOW * win, int choice, int selected) |
1da177e4 | 19 | { |
b1c5f1c6 | 20 | int i; |
e7401d83 LZ |
21 | char *list_item = malloc(list_width + 1); |
22 | ||
23 | strncpy(list_item, item_str(), list_width - item_x); | |
24 | list_item[list_width - item_x] = '\0'; | |
b1c5f1c6 SR |
25 | |
26 | /* Clear 'residue' of last item */ | |
98e5a157 | 27 | wattrset(win, dlg.menubox.atr); |
b1c5f1c6 SR |
28 | wmove(win, choice, 0); |
29 | for (i = 0; i < list_width; i++) | |
30 | waddch(win, ' '); | |
31 | ||
32 | wmove(win, choice, check_x); | |
98e5a157 SR |
33 | wattrset(win, selected ? dlg.check_selected.atr |
34 | : dlg.check.atr); | |
af6c1598 PK |
35 | if (!item_is_tag(':')) |
36 | wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' '); | |
b1c5f1c6 | 37 | |
98e5a157 | 38 | wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr); |
e7401d83 | 39 | mvwaddch(win, choice, item_x, list_item[0]); |
98e5a157 | 40 | wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr); |
e7401d83 | 41 | waddstr(win, list_item + 1); |
b1c5f1c6 SR |
42 | if (selected) { |
43 | wmove(win, choice, check_x + 1); | |
44 | wrefresh(win); | |
45 | } | |
e7401d83 | 46 | free(list_item); |
1da177e4 LT |
47 | } |
48 | ||
49 | /* | |
50 | * Print the scroll indicators. | |
51 | */ | |
dec69da8 | 52 | static void print_arrows(WINDOW * win, int choice, int item_no, int scroll, |
b1c5f1c6 | 53 | int y, int x, int height) |
1da177e4 | 54 | { |
b1c5f1c6 SR |
55 | wmove(win, y, x); |
56 | ||
57 | if (scroll > 0) { | |
98e5a157 | 58 | wattrset(win, dlg.uarrow.atr); |
b1c5f1c6 SR |
59 | waddch(win, ACS_UARROW); |
60 | waddstr(win, "(-)"); | |
61 | } else { | |
98e5a157 | 62 | wattrset(win, dlg.menubox.atr); |
b1c5f1c6 SR |
63 | waddch(win, ACS_HLINE); |
64 | waddch(win, ACS_HLINE); | |
65 | waddch(win, ACS_HLINE); | |
66 | waddch(win, ACS_HLINE); | |
67 | } | |
68 | ||
69 | y = y + height + 1; | |
70 | wmove(win, y, x); | |
71 | ||
72 | if ((height < item_no) && (scroll + choice < item_no - 1)) { | |
98e5a157 | 73 | wattrset(win, dlg.darrow.atr); |
b1c5f1c6 SR |
74 | waddch(win, ACS_DARROW); |
75 | waddstr(win, "(+)"); | |
76 | } else { | |
98e5a157 | 77 | wattrset(win, dlg.menubox_border.atr); |
b1c5f1c6 SR |
78 | waddch(win, ACS_HLINE); |
79 | waddch(win, ACS_HLINE); | |
80 | waddch(win, ACS_HLINE); | |
81 | waddch(win, ACS_HLINE); | |
82 | } | |
1da177e4 LT |
83 | } |
84 | ||
85 | /* | |
86 | * Display the termination buttons | |
87 | */ | |
b1c5f1c6 | 88 | static void print_buttons(WINDOW * dialog, int height, int width, int selected) |
1da177e4 | 89 | { |
b1c5f1c6 SR |
90 | int x = width / 2 - 11; |
91 | int y = height - 2; | |
1da177e4 | 92 | |
694c49a7 SR |
93 | print_button(dialog, "Select", y, x, selected == 0); |
94 | print_button(dialog, " Help ", y, x + 14, selected == 1); | |
1da177e4 | 95 | |
b1c5f1c6 SR |
96 | wmove(dialog, y, x + 1 + 14 * selected); |
97 | wrefresh(dialog); | |
1da177e4 LT |
98 | } |
99 | ||
100 | /* | |
101 | * Display a dialog box with a list of options that can be turned on or off | |
00213b17 | 102 | * in the style of radiolist (only one option turned on at a time). |
1da177e4 | 103 | */ |
dec69da8 | 104 | int dialog_checklist(const char *title, const char *prompt, int height, |
2982de69 | 105 | int width, int list_height) |
1da177e4 | 106 | { |
b1c5f1c6 | 107 | int i, x, y, box_x, box_y; |
2982de69 | 108 | int key = 0, button = 0, choice = 0, scroll = 0, max_choice; |
b1c5f1c6 SR |
109 | WINDOW *dialog, *list; |
110 | ||
2982de69 SR |
111 | /* which item to highlight */ |
112 | item_foreach() { | |
113 | if (item_is_tag('X')) | |
114 | choice = item_n(); | |
115 | if (item_is_selected()) { | |
116 | choice = item_n(); | |
117 | break; | |
118 | } | |
b1c5f1c6 | 119 | } |
b1c5f1c6 | 120 | |
c8dc68ad | 121 | do_resize: |
89e5462b | 122 | if (getmaxy(stdscr) < (height + CHECKLIST_HEIGHT_MIN)) |
c8dc68ad | 123 | return -ERRDISPLAYTOOSMALL; |
851f6657 | 124 | if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN)) |
c8dc68ad SR |
125 | return -ERRDISPLAYTOOSMALL; |
126 | ||
2982de69 | 127 | max_choice = MIN(list_height, item_count()); |
b1c5f1c6 SR |
128 | |
129 | /* center dialog box on screen */ | |
4f2de3e1 DG |
130 | x = (getmaxx(stdscr) - width) / 2; |
131 | y = (getmaxy(stdscr) - height) / 2; | |
b1c5f1c6 SR |
132 | |
133 | draw_shadow(stdscr, y, x, height, width); | |
134 | ||
135 | dialog = newwin(height, width, y, x); | |
136 | keypad(dialog, TRUE); | |
137 | ||
98e5a157 SR |
138 | draw_box(dialog, 0, 0, height, width, |
139 | dlg.dialog.atr, dlg.border.atr); | |
140 | wattrset(dialog, dlg.border.atr); | |
b1c5f1c6 SR |
141 | mvwaddch(dialog, height - 3, 0, ACS_LTEE); |
142 | for (i = 0; i < width - 2; i++) | |
143 | waddch(dialog, ACS_HLINE); | |
98e5a157 | 144 | wattrset(dialog, dlg.dialog.atr); |
b1c5f1c6 SR |
145 | waddch(dialog, ACS_RTEE); |
146 | ||
fa7009d5 | 147 | print_title(dialog, title, width); |
b1c5f1c6 | 148 | |
98e5a157 | 149 | wattrset(dialog, dlg.dialog.atr); |
b1c5f1c6 SR |
150 | print_autowrap(dialog, prompt, width - 2, 1, 3); |
151 | ||
152 | list_width = width - 6; | |
153 | box_y = height - list_height - 5; | |
154 | box_x = (width - list_width) / 2 - 1; | |
155 | ||
156 | /* create new window for the list */ | |
dec69da8 | 157 | list = subwin(dialog, list_height, list_width, y + box_y + 1, |
bb66fc67 | 158 | x + box_x + 1); |
b1c5f1c6 SR |
159 | |
160 | keypad(list, TRUE); | |
161 | ||
162 | /* draw a box around the list items */ | |
163 | draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2, | |
bb66fc67 | 164 | dlg.menubox_border.atr, dlg.menubox.atr); |
b1c5f1c6 SR |
165 | |
166 | /* Find length of longest item in order to center checklist */ | |
167 | check_x = 0; | |
2982de69 SR |
168 | item_foreach() |
169 | check_x = MAX(check_x, strlen(item_str()) + 4); | |
42ef223c | 170 | check_x = MIN(check_x, list_width); |
b1c5f1c6 SR |
171 | |
172 | check_x = (list_width - check_x) / 2; | |
173 | item_x = check_x + 4; | |
174 | ||
175 | if (choice >= list_height) { | |
176 | scroll = choice - list_height + 1; | |
177 | choice -= scroll; | |
178 | } | |
179 | ||
180 | /* Print the list */ | |
181 | for (i = 0; i < max_choice; i++) { | |
2982de69 SR |
182 | item_set(scroll + i); |
183 | print_item(list, i, i == choice); | |
1da177e4 LT |
184 | } |
185 | ||
2982de69 | 186 | print_arrows(dialog, choice, item_count(), scroll, |
b1c5f1c6 SR |
187 | box_y, box_x + check_x + 5, list_height); |
188 | ||
189 | print_buttons(dialog, height, width, 0); | |
190 | ||
ba3b759f MB |
191 | wmove(list, choice, check_x + 1); |
192 | wrefresh(list); | |
b1c5f1c6 | 193 | |
f3cbcdc9 | 194 | while (key != KEY_ESC) { |
b1c5f1c6 SR |
195 | key = wgetch(dialog); |
196 | ||
2982de69 SR |
197 | for (i = 0; i < max_choice; i++) { |
198 | item_set(i + scroll); | |
199 | if (toupper(key) == toupper(item_str()[0])) | |
b1c5f1c6 | 200 | break; |
2982de69 | 201 | } |
b1c5f1c6 SR |
202 | |
203 | if (i < max_choice || key == KEY_UP || key == KEY_DOWN || | |
204 | key == '+' || key == '-') { | |
205 | if (key == KEY_UP || key == '-') { | |
206 | if (!choice) { | |
207 | if (!scroll) | |
208 | continue; | |
209 | /* Scroll list down */ | |
210 | if (list_height > 1) { | |
211 | /* De-highlight current first item */ | |
2982de69 SR |
212 | item_set(scroll); |
213 | print_item(list, 0, FALSE); | |
b1c5f1c6 SR |
214 | scrollok(list, TRUE); |
215 | wscrl(list, -1); | |
216 | scrollok(list, FALSE); | |
217 | } | |
218 | scroll--; | |
2982de69 SR |
219 | item_set(scroll); |
220 | print_item(list, 0, TRUE); | |
221 | print_arrows(dialog, choice, item_count(), | |
dec69da8 | 222 | scroll, box_y, box_x + check_x + 5, list_height); |
b1c5f1c6 | 223 | |
f043ca43 ST |
224 | wnoutrefresh(dialog); |
225 | wrefresh(list); | |
b1c5f1c6 SR |
226 | |
227 | continue; /* wait for another key press */ | |
228 | } else | |
229 | i = choice - 1; | |
230 | } else if (key == KEY_DOWN || key == '+') { | |
231 | if (choice == max_choice - 1) { | |
2982de69 | 232 | if (scroll + choice >= item_count() - 1) |
b1c5f1c6 SR |
233 | continue; |
234 | /* Scroll list up */ | |
235 | if (list_height > 1) { | |
236 | /* De-highlight current last item before scrolling up */ | |
2982de69 SR |
237 | item_set(scroll + max_choice - 1); |
238 | print_item(list, | |
239 | max_choice - 1, | |
240 | FALSE); | |
b1c5f1c6 SR |
241 | scrollok(list, TRUE); |
242 | wscrl(list, 1); | |
243 | scrollok(list, FALSE); | |
244 | } | |
245 | scroll++; | |
2982de69 SR |
246 | item_set(scroll + max_choice - 1); |
247 | print_item(list, max_choice - 1, TRUE); | |
b1c5f1c6 | 248 | |
2982de69 | 249 | print_arrows(dialog, choice, item_count(), |
dec69da8 | 250 | scroll, box_y, box_x + check_x + 5, list_height); |
b1c5f1c6 | 251 | |
f043ca43 ST |
252 | wnoutrefresh(dialog); |
253 | wrefresh(list); | |
b1c5f1c6 SR |
254 | |
255 | continue; /* wait for another key press */ | |
256 | } else | |
257 | i = choice + 1; | |
258 | } | |
259 | if (i != choice) { | |
260 | /* De-highlight current item */ | |
2982de69 SR |
261 | item_set(scroll + choice); |
262 | print_item(list, choice, FALSE); | |
b1c5f1c6 SR |
263 | /* Highlight new item */ |
264 | choice = i; | |
2982de69 SR |
265 | item_set(scroll + choice); |
266 | print_item(list, choice, TRUE); | |
f043ca43 ST |
267 | wnoutrefresh(dialog); |
268 | wrefresh(list); | |
b1c5f1c6 SR |
269 | } |
270 | continue; /* wait for another key press */ | |
271 | } | |
272 | switch (key) { | |
273 | case 'H': | |
274 | case 'h': | |
275 | case '?': | |
2982de69 SR |
276 | button = 1; |
277 | /* fall-through */ | |
278 | case 'S': | |
279 | case 's': | |
280 | case ' ': | |
281 | case '\n': | |
282 | item_foreach() | |
283 | item_set_selected(0); | |
284 | item_set(scroll + choice); | |
285 | item_set_selected(1); | |
286 | delwin(list); | |
b1c5f1c6 | 287 | delwin(dialog); |
2982de69 | 288 | return button; |
b1c5f1c6 SR |
289 | case TAB: |
290 | case KEY_LEFT: | |
291 | case KEY_RIGHT: | |
292 | button = ((key == KEY_LEFT ? --button : ++button) < 0) | |
293 | ? 1 : (button > 1 ? 0 : button); | |
294 | ||
295 | print_buttons(dialog, height, width, button); | |
296 | wrefresh(dialog); | |
297 | break; | |
b1c5f1c6 SR |
298 | case 'X': |
299 | case 'x': | |
f3cbcdc9 SR |
300 | key = KEY_ESC; |
301 | break; | |
302 | case KEY_ESC: | |
303 | key = on_key_esc(dialog); | |
b1c5f1c6 | 304 | break; |
c8dc68ad SR |
305 | case KEY_RESIZE: |
306 | delwin(list); | |
307 | delwin(dialog); | |
308 | on_key_resize(); | |
309 | goto do_resize; | |
b1c5f1c6 SR |
310 | } |
311 | ||
312 | /* Now, update everything... */ | |
313 | doupdate(); | |
314 | } | |
2982de69 | 315 | delwin(list); |
b1c5f1c6 | 316 | delwin(dialog); |
f3cbcdc9 | 317 | return key; /* ESC pressed */ |
1da177e4 | 318 | } |