4f2de3e199
According to the documentation [1], LINES and COLS are initialized by initscr(); it does not say anything about the behavior when windows are resized. Do not rely on the current implementation of ncurses that updates these variables on resize, but use the propper function calls to get window dimensions. init_dialog() could make use of the variables, but for the sake of consistency we do not change it's current use of the macro getmaxyx(). [1] ncurses(3X) Signed-off-by: Dirk Gouders <dirk@gouders.net> Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
/*
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* yesno.c -- implements the yes/no box
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*
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* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
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* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "dialog.h"
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/*
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* Display termination buttons
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*/
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static void print_buttons(WINDOW * dialog, int height, int width, int selected)
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{
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int x = width / 2 - 10;
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int y = height - 2;
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print_button(dialog, gettext(" Yes "), y, x, selected == 0);
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print_button(dialog, gettext(" No "), y, x + 13, selected == 1);
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wmove(dialog, y, x + 1 + 13 * selected);
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wrefresh(dialog);
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}
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/*
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* Display a dialog box with two buttons - Yes and No
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*/
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int dialog_yesno(const char *title, const char *prompt, int height, int width)
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{
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int i, x, y, key = 0, button = 0;
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WINDOW *dialog;
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do_resize:
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if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN))
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return -ERRDISPLAYTOOSMALL;
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if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN))
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return -ERRDISPLAYTOOSMALL;
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/* center dialog box on screen */
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x = (getmaxx(stdscr) - width) / 2;
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y = (getmaxy(stdscr) - height) / 2;
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draw_shadow(stdscr, y, x, height, width);
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dialog = newwin(height, width, y, x);
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keypad(dialog, TRUE);
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draw_box(dialog, 0, 0, height, width,
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dlg.dialog.atr, dlg.border.atr);
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wattrset(dialog, dlg.border.atr);
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mvwaddch(dialog, height - 3, 0, ACS_LTEE);
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for (i = 0; i < width - 2; i++)
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waddch(dialog, ACS_HLINE);
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wattrset(dialog, dlg.dialog.atr);
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waddch(dialog, ACS_RTEE);
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print_title(dialog, title, width);
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wattrset(dialog, dlg.dialog.atr);
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print_autowrap(dialog, prompt, width - 2, 1, 3);
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print_buttons(dialog, height, width, 0);
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while (key != KEY_ESC) {
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key = wgetch(dialog);
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switch (key) {
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case 'Y':
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case 'y':
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delwin(dialog);
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return 0;
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case 'N':
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case 'n':
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delwin(dialog);
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return 1;
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case TAB:
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case KEY_LEFT:
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case KEY_RIGHT:
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button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
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print_buttons(dialog, height, width, button);
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wrefresh(dialog);
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break;
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case ' ':
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case '\n':
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delwin(dialog);
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return button;
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case KEY_ESC:
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key = on_key_esc(dialog);
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break;
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case KEY_RESIZE:
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delwin(dialog);
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on_key_resize();
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goto do_resize;
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}
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}
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delwin(dialog);
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return key; /* ESC pressed */
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}
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