2 * inputbox.c -- implements the input box
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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.
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.
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.
24 char dialog_input_result[MAX_LEN + 1];
27 * Print the termination buttons
29 static void print_buttons(WINDOW * dialog, int height, int width, int selected)
31 int x = width / 2 - 11;
34 print_button(dialog, gettext(" Ok "), y, x, selected == 0);
35 print_button(dialog, gettext(" Help "), y, x + 14, selected == 1);
37 wmove(dialog, y, x + 1 + 14 * selected);
42 * Display a dialog box for inputing a string
44 int dialog_inputbox(const char *title, const char *prompt, int height, int width,
47 int i, x, y, box_y, box_x, box_width;
48 int input_x = 0, key = 0, button = -1;
50 char *instr = dialog_input_result;
59 if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_MIN))
60 return -ERRDISPLAYTOOSMALL;
61 if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN))
62 return -ERRDISPLAYTOOSMALL;
64 /* center dialog box on screen */
65 x = (getmaxx(stdscr) - width) / 2;
66 y = (getmaxy(stdscr) - height) / 2;
68 draw_shadow(stdscr, y, x, height, width);
70 dialog = newwin(height, width, y, x);
73 draw_box(dialog, 0, 0, height, width,
74 dlg.dialog.atr, dlg.border.atr);
75 wattrset(dialog, dlg.border.atr);
76 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
77 for (i = 0; i < width - 2; i++)
78 waddch(dialog, ACS_HLINE);
79 wattrset(dialog, dlg.dialog.atr);
80 waddch(dialog, ACS_RTEE);
82 print_title(dialog, title, width);
84 wattrset(dialog, dlg.dialog.atr);
85 print_autowrap(dialog, prompt, width - 2, 1, 3);
87 /* Draw the input field box */
88 box_width = width - 6;
91 box_x = (width - box_width) / 2;
92 draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
93 dlg.dialog.atr, dlg.border.atr);
95 print_buttons(dialog, height, width, 0);
97 /* Set up the initial value */
98 wmove(dialog, box_y, box_x);
99 wattrset(dialog, dlg.inputbox.atr);
104 if (len >= box_width) {
105 show_x = len - box_width + 1;
106 input_x = box_width - 1;
107 for (i = 0; i < box_width - 1; i++)
108 waddch(dialog, instr[show_x + i]);
112 waddstr(dialog, instr);
115 wmove(dialog, box_y, box_x + input_x);
119 while (key != KEY_ESC) {
120 key = wgetch(dialog);
122 if (button == -1) { /* Input box selected */
132 wattrset(dialog, dlg.inputbox.atr);
139 for (i = pos - 1; i < len; i++) {
140 instr[i] = instr[i+1];
147 wmove(dialog, box_y, box_x);
148 for (i = 0; i < box_width; i++) {
149 if (!instr[show_x + i]) {
153 waddch(dialog, instr[show_x + i]);
155 wmove(dialog, box_y, input_x + box_x);
162 wmove(dialog, box_y, --input_x + box_x);
163 } else if (input_x == 0) {
165 wmove(dialog, box_y, box_x);
166 for (i = 0; i < box_width; i++) {
167 if (!instr[show_x + i]) {
171 waddch(dialog, instr[show_x + i]);
173 wmove(dialog, box_y, box_x);
180 if (input_x < box_width - 1) {
181 wmove(dialog, box_y, ++input_x + box_x);
182 } else if (input_x == box_width - 1) {
184 wmove(dialog, box_y, box_x);
185 for (i = 0; i < box_width; i++) {
186 if (!instr[show_x + i]) {
190 waddch(dialog, instr[show_x + i]);
192 wmove(dialog, box_y, input_x + box_x);
198 if (key < 0x100 && isprint(key)) {
200 wattrset(dialog, dlg.inputbox.atr);
202 for (i = len; i > pos; i--)
203 instr[i] = instr[i-1];
212 if (input_x == box_width - 1) {
218 wmove(dialog, box_y, box_x);
219 for (i = 0; i < box_width; i++) {
220 if (!instr[show_x + i]) {
224 waddch(dialog, instr[show_x + i]);
226 wmove(dialog, box_y, input_x + box_x);
229 flash(); /* Alarm user about overflow */
247 button = 1; /* Indicates "Help" button is selected */
248 print_buttons(dialog, height, width, 1);
251 button = -1; /* Indicates input box is selected */
252 print_buttons(dialog, height, width, 0);
253 wmove(dialog, box_y, box_x + input_x);
257 button = 0; /* Indicates "OK" button is selected */
258 print_buttons(dialog, height, width, 0);
267 button = 0; /* Indicates "OK" button is selected */
268 print_buttons(dialog, height, width, 0);
271 button = 1; /* Indicates "Help" button is selected */
272 print_buttons(dialog, height, width, 1);
275 button = -1; /* Indicates input box is selected */
276 print_buttons(dialog, height, width, 0);
277 wmove(dialog, box_y, box_x + input_x);
285 return (button == -1 ? 0 : button);
291 key = on_key_esc(dialog);
301 return KEY_ESC; /* ESC pressed */