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, " Ok ", y, x, selected == 0);
35 print_button(dialog, " 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, scroll = 0, key = 0, button = -1;
49 char *instr = dialog_input_result;
52 /* center dialog box on screen */
53 x = (COLS - width) / 2;
54 y = (LINES - height) / 2;
56 draw_shadow(stdscr, y, x, height, width);
58 dialog = newwin(height, width, y, x);
61 draw_box(dialog, 0, 0, height, width,
62 dlg.dialog.atr, dlg.border.atr);
63 wattrset(dialog, dlg.border.atr);
64 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
65 for (i = 0; i < width - 2; i++)
66 waddch(dialog, ACS_HLINE);
67 wattrset(dialog, dlg.dialog.atr);
68 waddch(dialog, ACS_RTEE);
70 print_title(dialog, title, width);
72 wattrset(dialog, dlg.dialog.atr);
73 print_autowrap(dialog, prompt, width - 2, 1, 3);
75 /* Draw the input field box */
76 box_width = width - 6;
79 box_x = (width - box_width) / 2;
80 draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
81 dlg.border.atr, dlg.dialog.atr);
83 print_buttons(dialog, height, width, 0);
85 /* Set up the initial value */
86 wmove(dialog, box_y, box_x);
87 wattrset(dialog, dlg.inputbox.atr);
94 input_x = strlen(instr);
96 if (input_x >= box_width) {
97 scroll = input_x - box_width + 1;
98 input_x = box_width - 1;
99 for (i = 0; i < box_width - 1; i++)
100 waddch(dialog, instr[scroll + i]);
102 waddstr(dialog, instr);
105 wmove(dialog, box_y, box_x + input_x);
109 while (key != KEY_ESC) {
110 key = wgetch(dialog);
112 if (button == -1) { /* Input box selected */
124 if (input_x || scroll) {
125 wattrset(dialog, dlg.inputbox.atr);
127 scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);
128 wmove(dialog, box_y, box_x);
129 for (i = 0; i < box_width; i++)
131 instr[scroll + input_x + i] ?
132 instr[scroll + input_x + i] : ' ');
133 input_x = strlen(instr) - scroll;
136 instr[scroll + input_x] = '\0';
137 mvwaddch(dialog, box_y, input_x + box_x, ' ');
138 wmove(dialog, box_y, input_x + box_x);
143 if (key < 0x100 && isprint(key)) {
144 if (scroll + input_x < MAX_LEN) {
145 wattrset(dialog, dlg.inputbox.atr);
146 instr[scroll + input_x] = key;
147 instr[scroll + input_x + 1] = '\0';
148 if (input_x == box_width - 1) {
150 wmove(dialog, box_y, box_x);
151 for (i = 0; i < box_width - 1; i++)
152 waddch(dialog, instr [scroll + i]);
154 wmove(dialog, box_y, input_x++ + box_x);
159 flash(); /* Alarm user about overflow */
177 button = 1; /* Indicates "Cancel" button is selected */
178 print_buttons(dialog, height, width, 1);
181 button = -1; /* Indicates input box is selected */
182 print_buttons(dialog, height, width, 0);
183 wmove(dialog, box_y, box_x + input_x);
187 button = 0; /* Indicates "OK" button is selected */
188 print_buttons(dialog, height, width, 0);
197 button = 0; /* Indicates "OK" button is selected */
198 print_buttons(dialog, height, width, 0);
201 button = 1; /* Indicates "Cancel" button is selected */
202 print_buttons(dialog, height, width, 1);
205 button = -1; /* Indicates input box is selected */
206 print_buttons(dialog, height, width, 0);
207 wmove(dialog, box_y, box_x + input_x);
215 return (button == -1 ? 0 : button);
221 key = on_key_esc(dialog);
227 return KEY_ESC; /* ESC pressed */