diff options
Diffstat (limited to 'yesno.c')
| -rw-r--r-- | yesno.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/yesno.c b/yesno.c new file mode 100644 index 000000000000..c666154c6d32 --- /dev/null +++ b/yesno.c @@ -0,0 +1,164 @@ +/* + * $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; +} |