2 * $Id: pause.c,v 1.48 2020/11/23 00:38:19 tom Exp $
4 * pause.c -- implements the pause dialog
6 * Copyright 2004-2019,2020 Thomas E. Dickey
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License, version 2.1
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this program; if not, write to
19 * Free Software Foundation, Inc.
20 * 51 Franklin St., Fifth Floor
21 * Boston, MA 02110, USA.
23 * This is adapted from source contributed by
33 #define MIN_WIDE (10 + 2 * (2 + MARGIN))
34 #define BTN_HIGH (1 + 2 * MARGIN)
37 * This is like gauge, but can be interrupted.
39 * A pause box displays a meter along the bottom of the box. The meter
40 * indicates how many seconds remain until the end of the pause. The pause
41 * exits when timeout is reached (status OK) or the user presses:
42 * OK button (status OK)
43 * CANCEL button (status CANCEL)
44 * Esc key (status ESC)
48 dialog_pause(const char *title,
55 static DLG_KEYS_BINDING binding[] = {
64 int old_height = height;
65 int old_width = width;
69 int button = dlg_default_button();
72 const char **buttons = dlg_ok_labels();
73 bool have_buttons = (dlg_button_count(buttons) != 0);
76 int result = DLG_EXIT_UNKNOWN;
77 int button_high = (have_buttons ? BTN_HIGH : MARGIN);
80 int save_timeout = dialog_vars.timeout_secs;
82 DLG_TRACE(("# pause args:\n"));
83 DLG_TRACE2S("title", title);
84 DLG_TRACE2S("message", cprompt);
85 DLG_TRACE2N("height", height);
86 DLG_TRACE2N("width", width);
87 DLG_TRACE2N("seconds", seconds);
91 seconds_orig = (seconds > 0) ? seconds : 1;
92 dialog_vars.pause_secs = seconds_orig;
93 dialog_vars.timeout_secs = 0;
99 prompt = dlg_strclone(cprompt);
100 dlg_tab_correct_str(prompt);
103 dlg_auto_size(title, prompt, &height, &width,
106 dlg_button_layout(buttons, &width);
108 dlg_auto_size(title, prompt, &height, &width,
109 MIN_HIGH + MARGIN - BTN_HIGH,
112 gauge_y = height - button_high - (1 + 2 * MARGIN);
113 dlg_print_size(height, width);
114 dlg_ctl_size(height, width);
116 /* center dialog box on screen */
117 x = dlg_box_x_ordinate(width);
118 y = dlg_box_y_ordinate(height);
120 dialog = dlg_new_window(height, width, y, x);
121 dlg_register_window(dialog, "pause", binding);
122 dlg_register_buttons(dialog, "pause", buttons);
124 dlg_mouse_setbase(x, y);
125 nodelay(dialog, TRUE);
129 (void) werase(dialog);
130 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
132 dlg_draw_title(dialog, title);
133 dlg_draw_helpline(dialog, FALSE);
135 dlg_attrset(dialog, dialog_attr);
136 dlg_print_autowrap(dialog, prompt, height, width);
138 dlg_draw_box2(dialog,
140 2 + MARGIN, width - 2 * (2 + MARGIN),
146 * Clear the area for the progress bar by filling it with spaces
147 * in the title-attribute, and write the percentage with that
150 (void) wmove(dialog, gauge_y + MARGIN, 4);
151 dlg_attrset(dialog, title_attr);
153 for (i = 0; i < (width - 2 * (3 + MARGIN)); i++)
154 (void) waddch(dialog, ' ');
156 (void) wmove(dialog, gauge_y + MARGIN, (width / 2) - 2);
157 (void) wprintw(dialog, "%3d", seconds);
160 * Now draw a bar in reverse, relative to the background.
161 * The window attribute was useful for painting the background,
162 * but requires some tweaks to reverse it.
164 x = (seconds * (width - 2 * (3 + MARGIN))) / seconds_orig;
165 if ((title_attr & A_REVERSE) != 0) {
166 dlg_attroff(dialog, A_REVERSE);
168 dlg_attrset(dialog, A_REVERSE);
170 (void) wmove(dialog, gauge_y + MARGIN, 4);
171 for (i = 0; i < x; i++) {
172 chtype ch = winch(dialog);
173 if (title_attr & A_REVERSE) {
176 (void) waddch(dialog, ch);
179 mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n');
181 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
182 dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
185 (void) wrefresh(dialog);
186 dlg_trace_win(dialog);
191 (result == DLG_EXIT_UNKNOWN) && (step < 1000);
192 step += MY_TIMEOUT) {
195 key = dlg_mouse_wgetch_nowait(dialog, &fkey);
197 ; /* ignore errors in nodelay mode */
198 } else if (dlg_result_key(key, fkey, &result)) {
199 if (!dlg_button_key(result, &button, &key, &fkey))
206 dlg_will_resize(dialog);
210 _dlg_resize_cleanup(dialog);
213 case DLGK_FIELD_NEXT:
214 button = dlg_next_button(buttons, button);
217 dlg_draw_buttons(dialog,
222 case DLGK_FIELD_PREV:
223 button = dlg_prev_button(buttons, button);
226 dlg_draw_buttons(dialog,
232 result = dlg_enter_buttoncode(button);
235 result = dlg_ok_buttoncode(button);
240 if (is_DLGK_MOUSE(key)) {
241 result = dlg_ok_buttoncode(key - M_EVENT);
243 result = DLG_EXIT_OK;
248 } while ((result == DLG_EXIT_UNKNOWN) && (seconds-- > 0));
249 dlg_add_last_key(-1);
252 dlg_mouse_free_regions();
253 dlg_del_window(dialog);
256 dialog_vars.timeout_secs = save_timeout;
258 return ((result == DLG_EXIT_UNKNOWN) ? DLG_EXIT_OK : result);