| /* |
| * inputbox.c -- implements the input box |
| * |
| * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) |
| * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include "dialog.h" |
| |
| char dialog_input_result[MAX_LEN + 1]; |
| |
| /* |
| * Print 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, " Ok ", y, x, selected == 0); |
| print_button(dialog, " Help ", y, x + 14, selected == 1); |
| |
| wmove(dialog, y, x + 1 + 14 * selected); |
| wrefresh(dialog); |
| } |
| |
| /* |
| * Display a dialog box for inputing a string |
| */ |
| int dialog_inputbox(const char *title, const char *prompt, int height, int width, |
| const char *init) |
| { |
| int i, x, y, box_y, box_x, box_width; |
| int input_x = 0, scroll = 0, key = 0, button = -1; |
| char *instr = dialog_input_result; |
| WINDOW *dialog; |
| |
| /* center dialog box on screen */ |
| x = (COLS - width) / 2; |
| y = (LINES - 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); |
| |
| /* Draw the input field box */ |
| box_width = width - 6; |
| getyx(dialog, y, x); |
| box_y = y + 2; |
| box_x = (width - box_width) / 2; |
| draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, |
| dlg.border.atr, dlg.dialog.atr); |
| |
| print_buttons(dialog, height, width, 0); |
| |
| /* Set up the initial value */ |
| wmove(dialog, box_y, box_x); |
| wattrset(dialog, dlg.inputbox.atr); |
| |
| if (!init) |
| instr[0] = '\0'; |
| else |
| strcpy(instr, init); |
| |
| input_x = strlen(instr); |
| |
| if (input_x >= box_width) { |
| scroll = input_x - box_width + 1; |
| input_x = box_width - 1; |
| for (i = 0; i < box_width - 1; i++) |
| waddch(dialog, instr[scroll + i]); |
| } else { |
| waddstr(dialog, instr); |
| } |
| |
| wmove(dialog, box_y, box_x + input_x); |
| |
| wrefresh(dialog); |
| |
| while (key != ESC) { |
| key = wgetch(dialog); |
| |
| if (button == -1) { /* Input box selected */ |
| switch (key) { |
| case TAB: |
| case KEY_UP: |
| case KEY_DOWN: |
| break; |
| case KEY_LEFT: |
| continue; |
| case KEY_RIGHT: |
| continue; |
| case KEY_BACKSPACE: |
| case 127: |
| if (input_x || scroll) { |
| wattrset(dialog, dlg.inputbox.atr); |
| if (!input_x) { |
| scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1); |
| wmove(dialog, box_y, box_x); |
| for (i = 0; i < box_width; i++) |
| waddch(dialog, |
| instr[scroll + input_x + i] ? |
| instr[scroll + input_x + i] : ' '); |
| input_x = strlen(instr) - scroll; |
| } else |
| input_x--; |
| instr[scroll + input_x] = '\0'; |
| mvwaddch(dialog, box_y, input_x + box_x, ' '); |
| wmove(dialog, box_y, input_x + box_x); |
| wrefresh(dialog); |
| } |
| continue; |
| default: |
| if (key < 0x100 && isprint(key)) { |
| if (scroll + input_x < MAX_LEN) { |
| wattrset(dialog, dlg.inputbox.atr); |
| instr[scroll + input_x] = key; |
| instr[scroll + input_x + 1] = '\0'; |
| if (input_x == box_width - 1) { |
| scroll++; |
| wmove(dialog, box_y, box_x); |
| for (i = 0; i < box_width - 1; i++) |
| waddch(dialog, instr [scroll + i]); |
| } else { |
| wmove(dialog, box_y, input_x++ + box_x); |
| waddch(dialog, key); |
| } |
| wrefresh(dialog); |
| } else |
| flash(); /* Alarm user about overflow */ |
| continue; |
| } |
| } |
| } |
| switch (key) { |
| case 'O': |
| case 'o': |
| delwin(dialog); |
| return 0; |
| case 'H': |
| case 'h': |
| delwin(dialog); |
| return 1; |
| case KEY_UP: |
| case KEY_LEFT: |
| switch (button) { |
| case -1: |
| button = 1; /* Indicates "Cancel" button is selected */ |
| print_buttons(dialog, height, width, 1); |
| break; |
| case 0: |
| button = -1; /* Indicates input box is selected */ |
| print_buttons(dialog, height, width, 0); |
| wmove(dialog, box_y, box_x + input_x); |
| wrefresh(dialog); |
| break; |
| case 1: |
| button = 0; /* Indicates "OK" button is selected */ |
| print_buttons(dialog, height, width, 0); |
| break; |
| } |
| break; |
| case TAB: |
| case KEY_DOWN: |
| case KEY_RIGHT: |
| switch (button) { |
| case -1: |
| button = 0; /* Indicates "OK" button is selected */ |
| print_buttons(dialog, height, width, 0); |
| break; |
| case 0: |
| button = 1; /* Indicates "Cancel" button is selected */ |
| print_buttons(dialog, height, width, 1); |
| break; |
| case 1: |
| button = -1; /* Indicates input box is selected */ |
| print_buttons(dialog, height, width, 0); |
| wmove(dialog, box_y, box_x + input_x); |
| wrefresh(dialog); |
| break; |
| } |
| break; |
| case ' ': |
| case '\n': |
| delwin(dialog); |
| return (button == -1 ? 0 : button); |
| case 'X': |
| case 'x': |
| key = ESC; |
| case ESC: |
| break; |
| } |
| } |
| |
| delwin(dialog); |
| return 255; /* ESC pressed */ |
| } |