[people/ms/u-boot.git] / scripts / kconfig / lxdialog / checklist.c

/*
 *  checklist.c -- implements the checklist box
 *
 *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
 *     Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
 *     Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
 *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include "dialog.h"

static int list_width, check_x, item_x;

/*
 * Print list item
 */
static void print_item(WINDOW * win, int choice, int selected)
{
	int i;
	char *list_item = malloc(list_width + 1);

	strncpy(list_item, item_str(), list_width - item_x);
	list_item[list_width - item_x] = '\0';

	/* Clear 'residue' of last item */
	wattrset(win, dlg.menubox.atr);
	wmove(win, choice, 0);
	for (i = 0; i < list_width; i++)
		waddch(win, ' ');

	wmove(win, choice, check_x);
	wattrset(win, selected ? dlg.check_selected.atr
		 : dlg.check.atr);
	if (!item_is_tag(':'))
		wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' ');

	wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr);
	mvwaddch(win, choice, item_x, list_item[0]);
	wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
	waddstr(win, list_item + 1);
	if (selected) {
		wmove(win, choice, check_x + 1);
		wrefresh(win);
	}
	free(list_item);
}

/*
 * Print the scroll indicators.
 */
static void print_arrows(WINDOW * win, int choice, int item_no, int scroll,
	     int y, int x, int height)
{
	wmove(win, y, x);

	if (scroll > 0) {
		wattrset(win, dlg.uarrow.atr);
		waddch(win, ACS_UARROW);
		waddstr(win, "(-)");
	} else {
		wattrset(win, dlg.menubox.atr);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
	}

	y = y + height + 1;
	wmove(win, y, x);

	if ((height < item_no) && (scroll + choice < item_no - 1)) {
		wattrset(win, dlg.darrow.atr);
		waddch(win, ACS_DARROW);
		waddstr(win, "(+)");
	} else {
		wattrset(win, dlg.menubox_border.atr);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
		waddch(win, ACS_HLINE);
	}
}

/*
 *  Display the termination buttons
 */
static void print_buttons(WINDOW * dialog, int height, int width, int selected)
{
	int x = width / 2 - 11;
	int y = height - 2;

	print_button(dialog, gettext("Select"), y, x, selected == 0);
	print_button(dialog, gettext(" Help "), y, x + 14, selected == 1);

	wmove(dialog, y, x + 1 + 14 * selected);
	wrefresh(dialog);
}

/*
 * Display a dialog box with a list of options that can be turned on or off
 * in the style of radiolist (only one option turned on at a time).
 */
int dialog_checklist(const char *title, const char *prompt, int height,
		     int width, int list_height)
{
	int i, x, y, box_x, box_y;
	int key = 0, button = 0, choice = 0, scroll = 0, max_choice;
	WINDOW *dialog, *list;

	/* which item to highlight */
	item_foreach() {
		if (item_is_tag('X'))
			choice = item_n();
		if (item_is_selected()) {
			choice = item_n();
			break;
		}
	}

do_resize:
	if (getmaxy(stdscr) < (height + CHECKLIST_HEIGTH_MIN))
		return -ERRDISPLAYTOOSMALL;
	if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN))
		return -ERRDISPLAYTOOSMALL;

	max_choice = MIN(list_height, item_count());

	/* center dialog box on screen */
	x = (getmaxx(stdscr) - width) / 2;
	y = (getmaxy(stdscr) - height) / 2;

	draw_shadow(stdscr, y, x, height, width);

	dialog = newwin(height, width, y, x);
	keypad(dialog, TRUE);

	draw_box(dialog, 0, 0, height, width,
		 dlg.dialog.atr, dlg.border.atr);
	wattrset(dialog, dlg.border.atr);
	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
	for (i = 0; i < width - 2; i++)
		waddch(dialog, ACS_HLINE);
	wattrset(dialog, dlg.dialog.atr);
	waddch(dialog, ACS_RTEE);

	print_title(dialog, title, width);

	wattrset(dialog, dlg.dialog.atr);
	print_autowrap(dialog, prompt, width - 2, 1, 3);

	list_width = width - 6;
	box_y = height - list_height - 5;
	box_x = (width - list_width) / 2 - 1;

	/* create new window for the list */
	list = subwin(dialog, list_height, list_width, y + box_y + 1,
		      x + box_x + 1);

	keypad(list, TRUE);

	/* draw a box around the list items */
	draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
		 dlg.menubox_border.atr, dlg.menubox.atr);

	/* Find length of longest item in order to center checklist */
	check_x = 0;
	item_foreach()
		check_x = MAX(check_x, strlen(item_str()) + 4);
	check_x = MIN(check_x, list_width);

	check_x = (list_width - check_x) / 2;
	item_x = check_x + 4;

	if (choice >= list_height) {
		scroll = choice - list_height + 1;
		choice -= scroll;
	}

	/* Print the list */
	for (i = 0; i < max_choice; i++) {
		item_set(scroll + i);
		print_item(list, i, i == choice);
	}

	print_arrows(dialog, choice, item_count(), scroll,
		     box_y, box_x + check_x + 5, list_height);

	print_buttons(dialog, height, width, 0);

	wnoutrefresh(dialog);
	wnoutrefresh(list);
	doupdate();

	while (key != KEY_ESC) {
		key = wgetch(dialog);

		for (i = 0; i < max_choice; i++) {
			item_set(i + scroll);
			if (toupper(key) == toupper(item_str()[0]))
				break;
		}

		if (i < max_choice || key == KEY_UP || key == KEY_DOWN ||
		    key == '+' || key == '-') {
			if (key == KEY_UP || key == '-') {
				if (!choice) {
					if (!scroll)
						continue;
					/* Scroll list down */
					if (list_height > 1) {
						/* De-highlight current first item */
						item_set(scroll);
						print_item(list, 0, FALSE);
						scrollok(list, TRUE);
						wscrl(list, -1);
						scrollok(list, FALSE);
					}
					scroll--;
					item_set(scroll);
					print_item(list, 0, TRUE);
					print_arrows(dialog, choice, item_count(),
						     scroll, box_y, box_x + check_x + 5, list_height);

					wnoutrefresh(dialog);
					wrefresh(list);

					continue;	/* wait for another key press */
				} else
					i = choice - 1;
			} else if (key == KEY_DOWN || key == '+') {
				if (choice == max_choice - 1) {
					if (scroll + choice >= item_count() - 1)
						continue;
					/* Scroll list up */
					if (list_height > 1) {
						/* De-highlight current last item before scrolling up */
						item_set(scroll + max_choice - 1);
						print_item(list,
							    max_choice - 1,
							    FALSE);
						scrollok(list, TRUE);
						wscrl(list, 1);
						scrollok(list, FALSE);
					}
					scroll++;
					item_set(scroll + max_choice - 1);
					print_item(list, max_choice - 1, TRUE);

					print_arrows(dialog, choice, item_count(),
						     scroll, box_y, box_x + check_x + 5, list_height);

					wnoutrefresh(dialog);
					wrefresh(list);

					continue;	/* wait for another key press */
				} else
					i = choice + 1;
			}
			if (i != choice) {
				/* De-highlight current item */
				item_set(scroll + choice);
				print_item(list, choice, FALSE);
				/* Highlight new item */
				choice = i;
				item_set(scroll + choice);
				print_item(list, choice, TRUE);
				wnoutrefresh(dialog);
				wrefresh(list);
			}
			continue;	/* wait for another key press */
		}
		switch (key) {
		case 'H':
		case 'h':
		case '?':
			button = 1;
			/* fall-through */
		case 'S':
		case 's':
		case ' ':
		case '\n':
			item_foreach()
				item_set_selected(0);
			item_set(scroll + choice);
			item_set_selected(1);
			delwin(list);
			delwin(dialog);
			return button;
		case TAB:
		case KEY_LEFT:
		case KEY_RIGHT:
			button = ((key == KEY_LEFT ? --button : ++button) < 0)
			    ? 1 : (button > 1 ? 0 : button);

			print_buttons(dialog, height, width, button);
			wrefresh(dialog);
			break;
		case 'X':
		case 'x':
			key = KEY_ESC;
			break;
		case KEY_ESC:
			key = on_key_esc(dialog);
			break;
		case KEY_RESIZE:
			delwin(list);
			delwin(dialog);
			on_key_resize();
			goto do_resize;
		}

		/* Now, update everything... */
		doupdate();
	}
	delwin(list);
	delwin(dialog);
	return key;		/* ESC pressed */
}
Commit	Line	Data
0a9064fb MY	1	/*
	2	* checklist.c -- implements the checklist box
	3	*
	4	* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
	5	* Stuart Herbert - S.Herbert@sheffield.ac.uk: radiolist extension
	6	* Alessandro Rubini - rubini@ipvvis.unipv.it: merged the two
	7	* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
	8	*
5b8031cc	9	* SPDX-License-Identifier: GPL-2.0+
0a9064fb MY	10	*/
	11
	12	#include "dialog.h"
	13
	14	static int list_width, check_x, item_x;
	15
	16	/*
	17	* Print list item
	18	*/
	19	static void print_item(WINDOW * win, int choice, int selected)
	20	{
	21	int i;
	22	char *list_item = malloc(list_width + 1);
	23
	24	strncpy(list_item, item_str(), list_width - item_x);
	25	list_item[list_width - item_x] = '\0';
	26
	27	/* Clear 'residue' of last item */
	28	wattrset(win, dlg.menubox.atr);
	29	wmove(win, choice, 0);
	30	for (i = 0; i < list_width; i++)
	31	waddch(win, ' ');
	32
	33	wmove(win, choice, check_x);
	34	wattrset(win, selected ? dlg.check_selected.atr
	35	: dlg.check.atr);
	36	if (!item_is_tag(':'))
	37	wprintw(win, "(%c)", item_is_tag('X') ? 'X' : ' ');
	38
	39	wattrset(win, selected ? dlg.tag_selected.atr : dlg.tag.atr);
	40	mvwaddch(win, choice, item_x, list_item[0]);
	41	wattrset(win, selected ? dlg.item_selected.atr : dlg.item.atr);
	42	waddstr(win, list_item + 1);
	43	if (selected) {
	44	wmove(win, choice, check_x + 1);
	45	wrefresh(win);
	46	}
	47	free(list_item);
	48	}
	49
	50	/*
	51	* Print the scroll indicators.
	52	*/
	53	static void print_arrows(WINDOW * win, int choice, int item_no, int scroll,
	54	int y, int x, int height)
	55	{
	56	wmove(win, y, x);
	57
	58	if (scroll > 0) {
	59	wattrset(win, dlg.uarrow.atr);
	60	waddch(win, ACS_UARROW);
	61	waddstr(win, "(-)");
	62	} else {
	63	wattrset(win, dlg.menubox.atr);
	64	waddch(win, ACS_HLINE);
	65	waddch(win, ACS_HLINE);
	66	waddch(win, ACS_HLINE);
	67	waddch(win, ACS_HLINE);
	68	}
	69
	70	y = y + height + 1;
	71	wmove(win, y, x);
	72
	73	if ((height < item_no) && (scroll + choice < item_no - 1)) {
74	wattrset(win, dlg.darrow.atr);
75	waddch(win, ACS_DARROW);
76	waddstr(win, "(+)");
77	} else {
78	wattrset(win, dlg.menubox_border.atr);
79	waddch(win, ACS_HLINE);
80	waddch(win, ACS_HLINE);
81	waddch(win, ACS_HLINE);
82	waddch(win, ACS_HLINE);
83	}
84	}
85
86	/*
87	* Display the termination buttons
88	*/
89	static void print_buttons(WINDOW * dialog, int height, int width, int selected)
90	{
91	int x = width / 2 - 11;
92	int y = height - 2;
93
94	print_button(dialog, gettext("Select"), y, x, selected == 0);
95	print_button(dialog, gettext(" Help "), y, x + 14, selected == 1);
96
97	wmove(dialog, y, x + 1 + 14 * selected);
98	wrefresh(dialog);
99	}
100
101	/*
102	* Display a dialog box with a list of options that can be turned on or off
103	* in the style of radiolist (only one option turned on at a time).
104	*/
105	int dialog_checklist(const char title, const char prompt, int height,
106	int width, int list_height)
107	{
108	int i, x, y, box_x, box_y;
109	int key = 0, button = 0, choice = 0, scroll = 0, max_choice;
110	WINDOW dialog, list;
111
112	/* which item to highlight */
113	item_foreach() {
114	if (item_is_tag('X'))
115	choice = item_n();
116	if (item_is_selected()) {
117	choice = item_n();
118	break;
119	}
120	}
121
122	do_resize:
123	if (getmaxy(stdscr) < (height + CHECKLIST_HEIGTH_MIN))
124	return -ERRDISPLAYTOOSMALL;
125	if (getmaxx(stdscr) < (width + CHECKLIST_WIDTH_MIN))
126	return -ERRDISPLAYTOOSMALL;
127
128	max_choice = MIN(list_height, item_count());
129
130	/* center dialog box on screen */
131	x = (getmaxx(stdscr) - width) / 2;
132	y = (getmaxy(stdscr) - height) / 2;
133
134	draw_shadow(stdscr, y, x, height, width);
135
136	dialog = newwin(height, width, y, x);
137	keypad(dialog, TRUE);
138
139	draw_box(dialog, 0, 0, height, width,
140	dlg.dialog.atr, dlg.border.atr);
141	wattrset(dialog, dlg.border.atr);
142	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
143	for (i = 0; i < width - 2; i++)
144	waddch(dialog, ACS_HLINE);
145	wattrset(dialog, dlg.dialog.atr);
146	waddch(dialog, ACS_RTEE);
147
148	print_title(dialog, title, width);
149
150	wattrset(dialog, dlg.dialog.atr);
151	print_autowrap(dialog, prompt, width - 2, 1, 3);
152
153	list_width = width - 6;
154	box_y = height - list_height - 5;
155	box_x = (width - list_width) / 2 - 1;
156
157	/* create new window for the list */
158	list = subwin(dialog, list_height, list_width, y + box_y + 1,
159	x + box_x + 1);
160
161	keypad(list, TRUE);
162
163	/* draw a box around the list items */
164	draw_box(dialog, box_y, box_x, list_height + 2, list_width + 2,
165	dlg.menubox_border.atr, dlg.menubox.atr);
166
167	/* Find length of longest item in order to center checklist */
168	check_x = 0;
169	item_foreach()
170	check_x = MAX(check_x, strlen(item_str()) + 4);
171	check_x = MIN(check_x, list_width);
172
173	check_x = (list_width - check_x) / 2;
174	item_x = check_x + 4;
175
176	if (choice >= list_height) {
177	scroll = choice - list_height + 1;
178	choice -= scroll;
179	}
180
181	/* Print the list */
182	for (i = 0; i < max_choice; i++) {
183	item_set(scroll + i);
184	print_item(list, i, i == choice);
185	}
186
187	print_arrows(dialog, choice, item_count(), scroll,
188	box_y, box_x + check_x + 5, list_height);
189
190	print_buttons(dialog, height, width, 0);
191
192	wnoutrefresh(dialog);
193	wnoutrefresh(list);
194	doupdate();
195
196	while (key != KEY_ESC) {
197	key = wgetch(dialog);
198
199	for (i = 0; i < max_choice; i++) {
200	item_set(i + scroll);
201	if (toupper(key) == toupper(item_str()[0]))
202	break;
203	}
204
205	if (i < max_choice \|\| key == KEY_UP \|\| key == KEY_DOWN \|\|
206	key == '+' \|\| key == '-') {
207	if (key == KEY_UP \|\| key == '-') {
208	if (!choice) {
209	if (!scroll)
210	continue;
211	/* Scroll list down */
212	if (list_height > 1) {
213	/* De-highlight current first item */
214	item_set(scroll);
215	print_item(list, 0, FALSE);
216	scrollok(list, TRUE);
217	wscrl(list, -1);
218	scrollok(list, FALSE);
219	}
220	scroll--;
221	item_set(scroll);
222	print_item(list, 0, TRUE);
223	print_arrows(dialog, choice, item_count(),
224	scroll, box_y, box_x + check_x + 5, list_height);
225
226	wnoutrefresh(dialog);
227	wrefresh(list);
228
229	continue; /* wait for another key press */
230	} else
231	i = choice - 1;
232	} else if (key == KEY_DOWN \|\| key == '+') {
233	if (choice == max_choice - 1) {
234	if (scroll + choice >= item_count() - 1)
235	continue;
236	/* Scroll list up */
237	if (list_height > 1) {
238	/* De-highlight current last item before scrolling up */
239	item_set(scroll + max_choice - 1);
240	print_item(list,
241	max_choice - 1,
242	FALSE);
243	scrollok(list, TRUE);
244	wscrl(list, 1);
245	scrollok(list, FALSE);
246	}
247	scroll++;
248	item_set(scroll + max_choice - 1);
249	print_item(list, max_choice - 1, TRUE);
250
251	print_arrows(dialog, choice, item_count(),
252	scroll, box_y, box_x + check_x + 5, list_height);
253
254	wnoutrefresh(dialog);
255	wrefresh(list);
256
257	continue; /* wait for another key press */
258	} else
259	i = choice + 1;
260	}
261	if (i != choice) {
262	/* De-highlight current item */
263	item_set(scroll + choice);
264	print_item(list, choice, FALSE);
265	/* Highlight new item */
266	choice = i;
267	item_set(scroll + choice);
268	print_item(list, choice, TRUE);
269	wnoutrefresh(dialog);
270	wrefresh(list);
271	}
272	continue; /* wait for another key press */
273	}
274	switch (key) {
275	case 'H':
276	case 'h':
277	case '?':
278	button = 1;
279	/* fall-through */
280	case 'S':
281	case 's':
282	case ' ':
283	case '\n':
284	item_foreach()
285	item_set_selected(0);
286	item_set(scroll + choice);
287	item_set_selected(1);
288	delwin(list);
289	delwin(dialog);
290	return button;
291	case TAB:
292	case KEY_LEFT:
293	case KEY_RIGHT:
294	button = ((key == KEY_LEFT ? --button : ++button) < 0)
295	? 1 : (button > 1 ? 0 : button);
296
297	print_buttons(dialog, height, width, button);
298	wrefresh(dialog);
299	break;
300	case 'X':
301	case 'x':
302	key = KEY_ESC;
303	break;
304	case KEY_ESC:
305	key = on_key_esc(dialog);
306	break;
307	case KEY_RESIZE:
308	delwin(list);
309	delwin(dialog);
310	on_key_resize();
311	goto do_resize;
312	}
313
314	/* Now, update everything... */
315	doupdate();
316	}
317	delwin(list);
318	delwin(dialog);
319	return key; /* ESC pressed */
320	}