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kconfig/lxdialog/yesno.c
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 1 eeea35fbf182
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     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, gettext(" Yes "), y, x, selected == 0);

    33 	print_button(dialog, gettext("  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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