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kconfig/lxdialog/yesno.c
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Feb 24 11:00:05 2007 +0000 (2007-02-24)
changeset 1 eeea35fbf182
child 943 1cca90ce0481
permissions -rw-r--r--
Add the full crosstool-NG sources to the new repository of its own.
You might just say: 'Yeah! crosstool-NG's got its own repo!".
Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup.
That means I'm putting backups in place in the afternoon.
That also means we've lost history... :-( 
     1 /*

     2  *  yesno.c -- implements the yes/no box

     3  *

     4  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)

     5  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)

     6  *

     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.

    11  *

    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.

    16  *

    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.

    20  */

    21 

    22 #include "dialog.h"

    23 

    24 /*

    25  * Display termination buttons

    26  */

    27 static void print_buttons(WINDOW * dialog, int height, int width, int selected)

    28 {

    29 	int x = width / 2 - 10;

    30 	int y = height - 2;

    31 

    32 	print_button(dialog, " Yes ", y, x, selected == 0);

    33 	print_button(dialog, "  No  ", y, x + 13, selected == 1);

    34 

    35 	wmove(dialog, y, x + 1 + 13 * selected);

    36 	wrefresh(dialog);

    37 }

    38 

    39 /*

    40  * Display a dialog box with two buttons - Yes and No

    41  */

    42 int dialog_yesno(const char *title, const char *prompt, int height, int width)

    43 {

    44 	int i, x, y, key = 0, button = 0;

    45 	WINDOW *dialog;

    46 

    47 do_resize:

    48 	if (getmaxy(stdscr) < (height + 4))

    49 		return -ERRDISPLAYTOOSMALL;

    50 	if (getmaxx(stdscr) < (width + 4))

    51 		return -ERRDISPLAYTOOSMALL;

    52 

    53 	/* center dialog box on screen */

    54 	x = (COLS - width) / 2;

    55 	y = (LINES - height) / 2;

    56 

    57 	draw_shadow(stdscr, y, x, height, width);

    58 

    59 	dialog = newwin(height, width, y, x);

    60 	keypad(dialog, TRUE);

    61 

    62 	draw_box(dialog, 0, 0, height, width,

    63 		 dlg.dialog.atr, dlg.border.atr);

    64 	wattrset(dialog, dlg.border.atr);

    65 	mvwaddch(dialog, height - 3, 0, ACS_LTEE);

    66 	for (i = 0; i < width - 2; i++)

    67 		waddch(dialog, ACS_HLINE);

    68 	wattrset(dialog, dlg.dialog.atr);

    69 	waddch(dialog, ACS_RTEE);

    70 

    71 	print_title(dialog, title, width);

    72 

    73 	wattrset(dialog, dlg.dialog.atr);

    74 	print_autowrap(dialog, prompt, width - 2, 1, 3);

    75 

    76 	print_buttons(dialog, height, width, 0);

    77 

    78 	while (key != KEY_ESC) {

    79 		key = wgetch(dialog);

    80 		switch (key) {

    81 		case 'Y':

    82 		case 'y':

    83 			delwin(dialog);

    84 			return 0;

    85 		case 'N':

    86 		case 'n':

    87 			delwin(dialog);

    88 			return 1;

    89 

    90 		case TAB:

    91 		case KEY_LEFT:

    92 		case KEY_RIGHT:

    93 			button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);

    94 

    95 			print_buttons(dialog, height, width, button);

    96 			wrefresh(dialog);

    97 			break;

    98 		case ' ':

    99 		case '\n':

   100 			delwin(dialog);

   101 			return button;

   102 		case KEY_ESC:

   103 			key = on_key_esc(dialog);

   104 			break;

   105 		case KEY_RESIZE:

   106 			delwin(dialog);

   107 			on_key_resize();

   108 			goto do_resize;

   109 		}

   110 	}

   111 

   112 	delwin(dialog);

   113 	return key;		/* ESC pressed */

   114 }
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