247 lines
6.3 KiB
C
247 lines
6.3 KiB
C
/*
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* $Id: pause.c,v 1.36 2012/07/03 00:01:59 tom Exp $
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*
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* pause.c -- implements the pause dialog
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*
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* Copyright 2004-2011,2012 Thomas E. Dickey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License, version 2.1
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to
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* Free Software Foundation, Inc.
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* 51 Franklin St., Fifth Floor
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* Boston, MA 02110, USA.
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*
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* This is adapted from source contributed by
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* Yura Kalinichenko
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*/
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#include <dialog.h>
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#include <dlg_keys.h>
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#define MY_TIMEOUT 50
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#define MIN_HIGH (4)
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#define MIN_WIDE (10 + 2 * (2 + MARGIN))
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#define BTN_HIGH (1 + 2 * MARGIN)
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/*
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* This is like gauge, but can be interrupted.
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*
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* A pause box displays a meter along the bottom of the box. The meter
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* indicates how many seconds remain until the end of the pause. The pause
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* exits when timeout is reached (status OK) or the user presses:
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* OK button (status OK)
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* CANCEL button (status CANCEL)
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* Esc key (status ESC)
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*
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*/
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int
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dialog_pause(const char *title,
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const char *cprompt,
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int height,
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int width,
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int seconds)
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{
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/* *INDENT-OFF* */
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static DLG_KEYS_BINDING binding[] = {
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HELPKEY_BINDINGS,
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ENTERKEY_BINDINGS,
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TRAVERSE_BINDINGS,
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END_KEYS_BINDING
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};
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/* *INDENT-ON* */
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#ifdef KEY_RESIZE
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int old_height = height;
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int old_width = width;
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#endif
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int i, x, y, step;
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int button = dlg_default_button();
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int seconds_orig;
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WINDOW *dialog;
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const char **buttons = dlg_ok_labels();
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bool have_buttons = (dlg_button_count(buttons) != 0);
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bool first;
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int key = 0, fkey;
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int result = DLG_EXIT_UNKNOWN;
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int button_high = (have_buttons ? BTN_HIGH : MARGIN);
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int gauge_y;
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char *prompt = dlg_strclone(cprompt);
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int save_timeout = dialog_vars.timeout_secs;
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curs_set(0);
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dlg_tab_correct_str(prompt);
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dialog_vars.timeout_secs = 0;
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seconds_orig = (seconds > 0) ? seconds : 1;
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#ifdef KEY_RESIZE
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retry:
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height = old_height;
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width = old_width;
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#endif
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if (have_buttons) {
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dlg_auto_size(title, prompt, &height, &width,
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MIN_HIGH,
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MIN_WIDE);
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dlg_button_layout(buttons, &width);
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} else {
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dlg_auto_size(title, prompt, &height, &width,
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MIN_HIGH + MARGIN - BTN_HIGH,
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MIN_WIDE);
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}
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gauge_y = height - button_high - (1 + 2 * MARGIN);
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dlg_print_size(height, width);
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dlg_ctl_size(height, width);
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/* center dialog box on screen */
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x = dlg_box_x_ordinate(width);
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y = dlg_box_y_ordinate(height);
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dialog = dlg_new_window(height, width, y, x);
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dlg_register_window(dialog, "pause", binding);
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dlg_register_buttons(dialog, "pause", buttons);
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dlg_mouse_setbase(x, y);
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nodelay(dialog, TRUE);
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first = TRUE;
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do {
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(void) werase(dialog);
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dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
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dlg_draw_title(dialog, title);
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dlg_draw_helpline(dialog, FALSE);
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(void) wattrset(dialog, dialog_attr);
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dlg_print_autowrap(dialog, prompt, height, width);
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dlg_draw_box2(dialog,
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gauge_y, 2 + MARGIN,
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2 + MARGIN, width - 2 * (2 + MARGIN),
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dialog_attr,
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border_attr,
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border2_attr);
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/*
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* Clear the area for the progress bar by filling it with spaces
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* in the title-attribute, and write the percentage with that
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* attribute.
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*/
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(void) wmove(dialog, gauge_y + MARGIN, 4);
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(void) wattrset(dialog, title_attr);
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for (i = 0; i < (width - 2 * (3 + MARGIN)); i++)
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(void) waddch(dialog, ' ');
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(void) wmove(dialog, gauge_y + MARGIN, (width / 2) - 2);
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(void) wprintw(dialog, "%3d", seconds);
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/*
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* Now draw a bar in reverse, relative to the background.
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* The window attribute was useful for painting the background,
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* but requires some tweaks to reverse it.
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*/
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x = (seconds * (width - 2 * (3 + MARGIN))) / seconds_orig;
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if ((title_attr & A_REVERSE) != 0) {
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wattroff(dialog, A_REVERSE);
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} else {
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(void) wattrset(dialog, A_REVERSE);
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}
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(void) wmove(dialog, gauge_y + MARGIN, 4);
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for (i = 0; i < x; i++) {
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chtype ch = winch(dialog);
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if (title_attr & A_REVERSE) {
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ch &= ~A_REVERSE;
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}
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(void) waddch(dialog, ch);
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}
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mouse_mkbutton(height - 2, width / 2 - 4, 6, '\n');
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if (have_buttons) {
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dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
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dlg_draw_buttons(dialog, height - 2, 0, buttons, button, FALSE, width);
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}
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if (first) {
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(void) wrefresh(dialog);
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dlg_trace_win(dialog);
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first = FALSE;
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}
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for (step = 0;
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(result == DLG_EXIT_UNKNOWN) && (step < 1000);
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step += MY_TIMEOUT) {
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napms(MY_TIMEOUT);
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key = dlg_mouse_wgetch_nowait(dialog, &fkey);
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if (key == ERR) {
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; /* ignore errors in nodelay mode */
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} else {
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if (dlg_result_key(key, fkey, &result))
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break;
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}
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switch (key) {
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#ifdef KEY_RESIZE
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case KEY_RESIZE:
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dlg_clear(); /* fill the background */
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dlg_del_window(dialog); /* delete this window */
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refresh(); /* get it all onto the terminal */
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goto retry;
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#endif
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case DLGK_FIELD_NEXT:
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button = dlg_next_button(buttons, button);
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if (button < 0)
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button = 0;
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dlg_draw_buttons(dialog,
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height - 2, 0,
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buttons, button,
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FALSE, width);
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break;
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case DLGK_FIELD_PREV:
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button = dlg_prev_button(buttons, button);
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if (button < 0)
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button = 0;
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dlg_draw_buttons(dialog,
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height - 2, 0,
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buttons, button,
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FALSE, width);
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break;
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case DLGK_ENTER:
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result = dlg_enter_buttoncode(button);
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break;
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case ERR:
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break;
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default:
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if (is_DLGK_MOUSE(key)) {
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result = dlg_ok_buttoncode(key - M_EVENT);
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if (result < 0)
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result = DLG_EXIT_OK;
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}
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break;
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}
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}
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} while ((result == DLG_EXIT_UNKNOWN) && (seconds-- > 0));
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curs_set(1);
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dlg_mouse_free_regions();
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dlg_del_window(dialog);
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free(prompt);
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dialog_vars.timeout_secs = save_timeout;
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return ((result == DLG_EXIT_UNKNOWN) ? DLG_EXIT_OK : result);
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}
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