2006-12-18 12:32:42 +08:00
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/****************************************************************************
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2007-07-01 08:42:27 +08:00
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* Copyright (c) 2006,2007 Free Software Foundation, Inc. *
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2006-12-18 12:32:42 +08:00
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/*
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2007-07-01 08:42:27 +08:00
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* $Id: redraw.c,v 1.4 2007/06/30 17:55:06 tom Exp $
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2006-12-18 12:32:42 +08:00
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*
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* Demonstrate the redrawwin() and wredrawln() functions.
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* Thomas Dickey - 2006/11/4
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*/
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#include <test.priv.h>
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static void
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trash(int beg_x, int max_x, int cur_x)
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{
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int x;
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for (x = cur_x; x > beg_x; --x) {
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putchar('\b');
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}
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for (x = beg_x; x < max_x; ++x) {
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if (x < cur_x)
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putchar('<');
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else if (x == cur_x)
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putchar('=');
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else if (x > cur_x)
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putchar('>');
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}
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for (x = max_x; x > cur_x; --x) {
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putchar('\b');
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}
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}
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static void
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test_redraw(WINDOW *win)
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{
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WINDOW *win1;
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WINDOW *win2;
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bool done = FALSE;
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int ch, y, x;
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int max_y, max_x;
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int beg_y, beg_x;
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scrollok(win, TRUE);
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keypad(win, TRUE);
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getmaxyx(win, max_y, max_x);
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getbegyx(win, beg_y, beg_x);
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while (!done) {
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ch = wgetch(win);
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getyx(win, y, x);
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switch (ch) {
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case 'q':
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/* FALLTHRU */
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case ESCAPE:
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done = TRUE;
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break;
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case 'w':
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win1 = newwin(max_y, max_x,
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beg_y, beg_x);
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win2 = newwin(max_y - 2, max_x - 2,
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beg_y + 1, beg_x + 1);
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box(win1, 0, 0);
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wrefresh(win1);
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test_redraw(win2);
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delwin(win2);
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delwin(win1);
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touchwin(win);
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break;
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case '!':
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/*
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* redrawwin() and wredrawln() do not take into account the
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* possibility that the cursor may have moved. That makes them
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* cumbersome for using with a shell command. So we simply
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* trash the current line of the window using backspace/overwrite.
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*/
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trash(beg_x, max_x, x + beg_x);
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break;
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#ifdef NCURSES_VERSION
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case '@':
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/*
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* For a shell command, we can work around the problem noted above
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* using mvcur(). It is ifdef'd for NCURSES, since X/Open does
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* not define the case where the old location is unknown.
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*/
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system("date");
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mvcur(-1, -1, y, x);
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break;
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#endif
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case CTRL('W'):
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redrawwin(win);
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break;
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case CTRL('L'):
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wredrawln(win, y, 1);
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break;
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case KEY_UP:
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if (y > 0)
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wmove(win, y - 1, x);
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break;
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case KEY_DOWN:
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if (y < max_y)
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wmove(win, y + 1, x);
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break;
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case KEY_LEFT:
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if (x > 0)
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wmove(win, y, x - 1);
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break;
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case KEY_RIGHT:
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if (x < max_x)
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wmove(win, y, x + 1);
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break;
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default:
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if (ch > KEY_MIN) {
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waddstr(win, keyname(ch));
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} else {
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2007-07-01 08:42:27 +08:00
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waddstr(win, unctrl(UChar(ch)));
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2006-12-18 12:32:42 +08:00
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}
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break;
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}
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wnoutrefresh(win);
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doupdate();
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}
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}
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int
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main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
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{
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initscr();
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raw();
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noecho();
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test_redraw(stdscr);
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endwin();
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ExitProgram(EXIT_SUCCESS);
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}
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