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-rw-r--r--contrib/dialog/yesno.c164
1 files changed, 164 insertions, 0 deletions
diff --git a/contrib/dialog/yesno.c b/contrib/dialog/yesno.c
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+++ b/contrib/dialog/yesno.c
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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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