1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/kconfig/lxdialog/inputbox.c Sat Feb 24 11:00:05 2007 +0000
1.3 @@ -0,0 +1,238 @@
1.4 +/*
1.5 + * inputbox.c -- implements the input box
1.6 + *
1.7 + * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
1.8 + * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
1.9 + *
1.10 + * This program is free software; you can redistribute it and/or
1.11 + * modify it under the terms of the GNU General Public License
1.12 + * as published by the Free Software Foundation; either version 2
1.13 + * of the License, or (at your option) any later version.
1.14 + *
1.15 + * This program is distributed in the hope that it will be useful,
1.16 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.17 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.18 + * GNU General Public License for more details.
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License
1.21 + * along with this program; if not, write to the Free Software
1.22 + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1.23 + */
1.24 +
1.25 +#include "dialog.h"
1.26 +
1.27 +char dialog_input_result[MAX_LEN + 1];
1.28 +
1.29 +/*
1.30 + * Print the termination buttons
1.31 + */
1.32 +static void print_buttons(WINDOW * dialog, int height, int width, int selected)
1.33 +{
1.34 + int x = width / 2 - 11;
1.35 + int y = height - 2;
1.36 +
1.37 + print_button(dialog, " Ok ", y, x, selected == 0);
1.38 + print_button(dialog, " Help ", y, x + 14, selected == 1);
1.39 +
1.40 + wmove(dialog, y, x + 1 + 14 * selected);
1.41 + wrefresh(dialog);
1.42 +}
1.43 +
1.44 +/*
1.45 + * Display a dialog box for inputing a string
1.46 + */
1.47 +int dialog_inputbox(const char *title, const char *prompt, int height, int width,
1.48 + const char *init)
1.49 +{
1.50 + int i, x, y, box_y, box_x, box_width;
1.51 + int input_x = 0, scroll = 0, key = 0, button = -1;
1.52 + char *instr = dialog_input_result;
1.53 + WINDOW *dialog;
1.54 +
1.55 + if (!init)
1.56 + instr[0] = '\0';
1.57 + else
1.58 + strcpy(instr, init);
1.59 +
1.60 +do_resize:
1.61 + if (getmaxy(stdscr) <= (height - 2))
1.62 + return -ERRDISPLAYTOOSMALL;
1.63 + if (getmaxx(stdscr) <= (width - 2))
1.64 + return -ERRDISPLAYTOOSMALL;
1.65 +
1.66 + /* center dialog box on screen */
1.67 + x = (COLS - width) / 2;
1.68 + y = (LINES - height) / 2;
1.69 +
1.70 + draw_shadow(stdscr, y, x, height, width);
1.71 +
1.72 + dialog = newwin(height, width, y, x);
1.73 + keypad(dialog, TRUE);
1.74 +
1.75 + draw_box(dialog, 0, 0, height, width,
1.76 + dlg.dialog.atr, dlg.border.atr);
1.77 + wattrset(dialog, dlg.border.atr);
1.78 + mvwaddch(dialog, height - 3, 0, ACS_LTEE);
1.79 + for (i = 0; i < width - 2; i++)
1.80 + waddch(dialog, ACS_HLINE);
1.81 + wattrset(dialog, dlg.dialog.atr);
1.82 + waddch(dialog, ACS_RTEE);
1.83 +
1.84 + print_title(dialog, title, width);
1.85 +
1.86 + wattrset(dialog, dlg.dialog.atr);
1.87 + print_autowrap(dialog, prompt, width - 2, 1, 3);
1.88 +
1.89 + /* Draw the input field box */
1.90 + box_width = width - 6;
1.91 + getyx(dialog, y, x);
1.92 + box_y = y + 2;
1.93 + box_x = (width - box_width) / 2;
1.94 + draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
1.95 + dlg.border.atr, dlg.dialog.atr);
1.96 +
1.97 + print_buttons(dialog, height, width, 0);
1.98 +
1.99 + /* Set up the initial value */
1.100 + wmove(dialog, box_y, box_x);
1.101 + wattrset(dialog, dlg.inputbox.atr);
1.102 +
1.103 + input_x = strlen(instr);
1.104 +
1.105 + if (input_x >= box_width) {
1.106 + scroll = input_x - box_width + 1;
1.107 + input_x = box_width - 1;
1.108 + for (i = 0; i < box_width - 1; i++)
1.109 + waddch(dialog, instr[scroll + i]);
1.110 + } else {
1.111 + waddstr(dialog, instr);
1.112 + }
1.113 +
1.114 + wmove(dialog, box_y, box_x + input_x);
1.115 +
1.116 + wrefresh(dialog);
1.117 +
1.118 + while (key != KEY_ESC) {
1.119 + key = wgetch(dialog);
1.120 +
1.121 + if (button == -1) { /* Input box selected */
1.122 + switch (key) {
1.123 + case TAB:
1.124 + case KEY_UP:
1.125 + case KEY_DOWN:
1.126 + break;
1.127 + case KEY_LEFT:
1.128 + continue;
1.129 + case KEY_RIGHT:
1.130 + continue;
1.131 + case KEY_BACKSPACE:
1.132 + case 127:
1.133 + if (input_x || scroll) {
1.134 + wattrset(dialog, dlg.inputbox.atr);
1.135 + if (!input_x) {
1.136 + scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);
1.137 + wmove(dialog, box_y, box_x);
1.138 + for (i = 0; i < box_width; i++)
1.139 + waddch(dialog,
1.140 + instr[scroll + input_x + i] ?
1.141 + instr[scroll + input_x + i] : ' ');
1.142 + input_x = strlen(instr) - scroll;
1.143 + } else
1.144 + input_x--;
1.145 + instr[scroll + input_x] = '\0';
1.146 + mvwaddch(dialog, box_y, input_x + box_x, ' ');
1.147 + wmove(dialog, box_y, input_x + box_x);
1.148 + wrefresh(dialog);
1.149 + }
1.150 + continue;
1.151 + default:
1.152 + if (key < 0x100 && isprint(key)) {
1.153 + if (scroll + input_x < MAX_LEN) {
1.154 + wattrset(dialog, dlg.inputbox.atr);
1.155 + instr[scroll + input_x] = key;
1.156 + instr[scroll + input_x + 1] = '\0';
1.157 + if (input_x == box_width - 1) {
1.158 + scroll++;
1.159 + wmove(dialog, box_y, box_x);
1.160 + for (i = 0; i < box_width - 1; i++)
1.161 + waddch(dialog, instr [scroll + i]);
1.162 + } else {
1.163 + wmove(dialog, box_y, input_x++ + box_x);
1.164 + waddch(dialog, key);
1.165 + }
1.166 + wrefresh(dialog);
1.167 + } else
1.168 + flash(); /* Alarm user about overflow */
1.169 + continue;
1.170 + }
1.171 + }
1.172 + }
1.173 + switch (key) {
1.174 + case 'O':
1.175 + case 'o':
1.176 + delwin(dialog);
1.177 + return 0;
1.178 + case 'H':
1.179 + case 'h':
1.180 + delwin(dialog);
1.181 + return 1;
1.182 + case KEY_UP:
1.183 + case KEY_LEFT:
1.184 + switch (button) {
1.185 + case -1:
1.186 + button = 1; /* Indicates "Cancel" button is selected */
1.187 + print_buttons(dialog, height, width, 1);
1.188 + break;
1.189 + case 0:
1.190 + button = -1; /* Indicates input box is selected */
1.191 + print_buttons(dialog, height, width, 0);
1.192 + wmove(dialog, box_y, box_x + input_x);
1.193 + wrefresh(dialog);
1.194 + break;
1.195 + case 1:
1.196 + button = 0; /* Indicates "OK" button is selected */
1.197 + print_buttons(dialog, height, width, 0);
1.198 + break;
1.199 + }
1.200 + break;
1.201 + case TAB:
1.202 + case KEY_DOWN:
1.203 + case KEY_RIGHT:
1.204 + switch (button) {
1.205 + case -1:
1.206 + button = 0; /* Indicates "OK" button is selected */
1.207 + print_buttons(dialog, height, width, 0);
1.208 + break;
1.209 + case 0:
1.210 + button = 1; /* Indicates "Cancel" button is selected */
1.211 + print_buttons(dialog, height, width, 1);
1.212 + break;
1.213 + case 1:
1.214 + button = -1; /* Indicates input box is selected */
1.215 + print_buttons(dialog, height, width, 0);
1.216 + wmove(dialog, box_y, box_x + input_x);
1.217 + wrefresh(dialog);
1.218 + break;
1.219 + }
1.220 + break;
1.221 + case ' ':
1.222 + case '\n':
1.223 + delwin(dialog);
1.224 + return (button == -1 ? 0 : button);
1.225 + case 'X':
1.226 + case 'x':
1.227 + key = KEY_ESC;
1.228 + break;
1.229 + case KEY_ESC:
1.230 + key = on_key_esc(dialog);
1.231 + break;
1.232 + case KEY_RESIZE:
1.233 + delwin(dialog);
1.234 + on_key_resize();
1.235 + goto do_resize;
1.236 + }
1.237 + }
1.238 +
1.239 + delwin(dialog);
1.240 + return KEY_ESC; /* ESC pressed */
1.241 +}