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/*
* $Id: yesno.c,v 1.49 2010/01/15 10:54:54 tom Exp $
*
* yesno.c -- implements the yes/no box
*
* Copyright 1999-2009,2010 Thomas E. Dickey
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License, version 2.1
* as published by the Free Software Foundation.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to
* Free Software Foundation, Inc.
* 51 Franklin St., Fifth Floor
* Boston, MA 02110, USA.
*
* An earlier version of this program lists as authors
* Savio Lam (lam836@cs.cuhk.hk)
*/
#include <dialog.h>
#include <dlg_keys.h>
/*
* Display a dialog box with two buttons - Yes and No.
*/
int
dialog_yesno(const char *title, const char *cprompt, int height, int width)
{
/* *INDENT-OFF* */
static DLG_KEYS_BINDING binding[] = {
ENTERKEY_BINDINGS,
DLG_KEYS_DATA( DLGK_ENTER, ' ' ),
DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ),
DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ),
DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP ),
DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ),
SCROLLKEY_BINDINGS,
END_KEYS_BINDING
};
/* *INDENT-ON* */
int x, y;
int key = 0, fkey;
int code;
int button = dlg_defaultno_button();
WINDOW *dialog = 0;
int result = DLG_EXIT_UNKNOWN;
char *prompt = dlg_strclone(cprompt);
const char **buttons = dlg_yes_labels();
int min_width = 25;
bool show = TRUE;
int page, last = 0, offset = 0;
#ifdef KEY_RESIZE
int req_high = height;
int req_wide = width;
restart:
#endif
dlg_tab_correct_str(prompt);
dlg_button_layout(buttons, &min_width);
dlg_auto_size(title, prompt, &height, &width, 2, min_width);
dlg_print_size(height, width);
dlg_ctl_size(height, width);
x = dlg_box_x_ordinate(width);
y = dlg_box_y_ordinate(height);
#ifdef KEY_RESIZE
if (dialog != 0)
dlg_move_window(dialog, height, width, y, x);
else
#endif
{
dialog = dlg_new_window(height, width, y, x);
dlg_register_window(dialog, "yesno", binding);
dlg_register_buttons(dialog, "yesno", buttons);
}
dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
dlg_draw_bottom_box(dialog);
dlg_draw_title(dialog, title);
wattrset(dialog, dialog_attr);
page = height - (1 + 3 * MARGIN);
dlg_draw_buttons(dialog,
height - 2 * MARGIN, 0,
buttons, button, FALSE, width);
while (result == DLG_EXIT_UNKNOWN) {
if (show) {
last = dlg_print_scrolled(dialog, prompt, offset,
page, width, TRUE);
show = FALSE;
}
key = dlg_mouse_wgetch(dialog, &fkey);
if (dlg_result_key(key, fkey, &result))
break;
if ((code = dlg_char_to_button(key, buttons)) >= 0) {
result = dlg_ok_buttoncode(code);
break;
}
/* handle function keys */
if (fkey) {
switch (key) {
case DLGK_FIELD_NEXT:
button = dlg_next_button(buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
buttons, button,
FALSE, width);
break;
case DLGK_FIELD_PREV:
button = dlg_prev_button(buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
buttons, button,
FALSE, width);
break;
case DLGK_ENTER:
result = dlg_yes_buttoncode(button);
break;
#ifdef KEY_RESIZE
case KEY_RESIZE:
dlg_clear();
height = req_high;
width = req_wide;
goto restart;
#endif
default:
if (is_DLGK_MOUSE(key)) {
result = dlg_yes_buttoncode(key - M_EVENT);
if (result < 0)
result = DLG_EXIT_OK;
} else if (dlg_check_scrolled(key, last, page,
&show, &offset) != 0) {
beep();
}
break;
}
} else {
beep();
}
}
dlg_del_window(dialog);
dlg_mouse_free_regions();
free(prompt);
return result;
}
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