241 lines
6.0 KiB
C
241 lines
6.0 KiB
C
/*
|
|
* 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"
|
|
|
|
unsigned 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;
|
|
unsigned 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, dialog_attr, border_attr);
|
|
wattrset (dialog, border_attr);
|
|
mvwaddch (dialog, height-3, 0, ACS_LTEE);
|
|
for (i = 0; i < width - 2; i++)
|
|
waddch (dialog, ACS_HLINE);
|
|
wattrset (dialog, dialog_attr);
|
|
waddch (dialog, ACS_RTEE);
|
|
|
|
if (title != NULL && strlen(title) >= width-2 ) {
|
|
/* truncate long title -- mec */
|
|
char * title2 = malloc(width-2+1);
|
|
memcpy( title2, title, width-2 );
|
|
title2[width-2] = '\0';
|
|
title = title2;
|
|
}
|
|
|
|
if (title != NULL) {
|
|
wattrset (dialog, title_attr);
|
|
mvwaddch (dialog, 0, (width - strlen(title))/2 - 1, ' ');
|
|
waddstr (dialog, (char *)title);
|
|
waddch (dialog, ' ');
|
|
}
|
|
|
|
wattrset (dialog, dialog_attr);
|
|
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,
|
|
border_attr, dialog_attr);
|
|
|
|
print_buttons(dialog, height, width, 0);
|
|
|
|
/* Set up the initial value */
|
|
wmove (dialog, box_y, box_x);
|
|
wattrset (dialog, inputbox_attr);
|
|
|
|
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, inputbox_attr);
|
|
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, inputbox_attr);
|
|
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 -1; /* ESC pressed */
|
|
}
|