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PATH: usr / share / doc / ncurses-devel-5.9 / test

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/*
 * $Id: redraw.c,v 1.8 2012/12/08 20:46:02 tom Exp $
 *
 * Demonstrate the redrawwin() and wredrawln() functions.
 * Thomas Dickey - 2006/11/4
 */

#include <test.priv.h>

static void
trash(int beg_x, int max_x, int cur_x)
{
    int x;

for (x = cur_x; x > beg_x; --x) {
	putchar('\b');
    }
    for (x = beg_x; x < max_x; ++x) {
	if (x < cur_x)
	    putchar('<');
	else if (x == cur_x)
	    putchar('=');
	else if (x > cur_x)
	    putchar('>');
    }
    for (x = max_x; x > cur_x; --x) {
	putchar('\b');
    }
}

static void
test_redraw(WINDOW *win)
{
    WINDOW *win1;
    WINDOW *win2;
    bool done = FALSE;
    int ch, y, x;
    int max_y, max_x;
    int beg_y, beg_x;

assert(win != 0);

scrollok(win, TRUE);
    keypad(win, TRUE);
    getmaxyx(win, max_y, max_x);
    getbegyx(win, beg_y, beg_x);
    while (!done) {
	ch = wgetch(win);
	getyx(win, y, x);
	switch (ch) {
	case 'q':
	    /* FALLTHRU */
	case ESCAPE:
	    done = TRUE;
	    break;
	case 'w':
	    win1 = newwin(max_y, max_x,
			  beg_y, beg_x);
	    win2 = newwin(max_y - 2, max_x - 2,
			  beg_y + 1, beg_x + 1);
	    box(win1, 0, 0);
	    wrefresh(win1);

test_redraw(win2);

delwin(win2);
	    delwin(win1);

touchwin(win);
	    break;

case '!':
	    /*
	     * redrawwin() and wredrawln() do not take into account the
	     * possibility that the cursor may have moved.  That makes them
	     * cumbersome for using with a shell command.  So we simply
	     * trash the current line of the window using backspace/overwrite.
	     */
	    trash(beg_x, max_x, x + beg_x);
	    break;

#ifdef NCURSES_VERSION
	case '@':
	    /*
	     * For a shell command, we can work around the problem noted above
	     * using mvcur().  It is ifdef'd for NCURSES, since X/Open does
	     * not define the case where the old location is unknown. 
	     */
	    IGNORE_RC(system("date"));
	    mvcur(-1, -1, y, x);
	    break;
#endif

case CTRL('W'):
	    redrawwin(win);
	    break;

case CTRL('L'):
	    wredrawln(win, y, 1);
	    break;

case KEY_UP:
	    if (y > 0)
		wmove(win, y - 1, x);
	    break;

case KEY_DOWN:
	    if (y < max_y)
		wmove(win, y + 1, x);
	    break;

case KEY_LEFT:
	    if (x > 0)
		wmove(win, y, x - 1);
	    break;

case KEY_RIGHT:
	    if (x < max_x)
		wmove(win, y, x + 1);
	    break;

default:
	    if (ch > KEY_MIN) {
		waddstr(win, keyname(ch));
	    } else {
		waddstr(win, unctrl(UChar(ch)));
	    }
	    break;
	}
	wnoutrefresh(win);
	doupdate();
    }
}

int
main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
{
    initscr();
    raw();
    noecho();
    test_redraw(stdscr);
    endwin();
    ExitProgram(EXIT_SUCCESS);
}

[-] color_set.c [edit]
[-] hashtest.c [edit]
[-] demo_termcap.c [edit]
[-] filter.c [edit]
[-] widechars-utf8.txt [edit]
[-] keynames.c [edit]
[-] firstlast.c [edit]
[-] chgat.c [edit]
[-] test_arrays.c [edit]
[-] view.c [edit]
[+] package
[-] gdc.c [edit]
[-] dots_mvcur.c [edit]
[-] movewindow.c [edit]
[+] ..
[-] ncurses_tst.hin [edit]
[-] firework.c [edit]
[-] ditto.c [edit]
[-] inch_wide.c [edit]
[-] README [edit]
[-] edit_field.h [edit]
[-] test_getstr.c [edit]
[-] hanoi.c [edit]
[-] railroad.c [edit]
[-] test_addwstr.c [edit]
[-] linux-color.dat [edit]
[-] test_add_wchstr.c [edit]
[-] bulgarian-utf8.txt [edit]
[-] linedata.h [edit]
[-] testcurs.c [edit]
[-] savescreen.sh [edit]
[-] xmas.c [edit]
[-] widechars.h [edit]
[-] inserts.c [edit]
[-] modules [edit]
[-] xterm-16color.dat [edit]
[-] newdemo.c [edit]
[-] echochar.c [edit]
[-] savescreen.c [edit]
[-] knight.c [edit]
[-] bs.c [edit]
[-] testscanw.c [edit]
[-] test_addchstr.c [edit]
[-] foldkeys.c [edit]
[-] mk-test.awk [edit]
[-] clip_printw.c [edit]
[-] install-sh [edit]
[-] configure [edit]
[-] aclocal.m4 [edit]
[-] test_instr.c [edit]
[-] configure.in [edit]
[-] test_opaque.c [edit]
[-] bs.6 [edit]
[-] demo_menus.c [edit]
[-] test_get_wstr.c [edit]
[-] insdelln.c [edit]
[-] xterm-88color.dat [edit]
[-] testaddch.c [edit]
[-] demo_panels.c [edit]
[-] test.priv.h [edit]
[-] tracemunch [edit]
[-] ncurses.c [edit]
[-] demo_terminfo.c [edit]
[-] test_vidputs.c [edit]
[-] test_inwstr.c [edit]
[-] rain.c [edit]
[-] cardfile.c [edit]
[-] background.c [edit]
[-] test_vid_puts.c [edit]
[-] demo_keyok.c [edit]
[-] inchs.c [edit]
[-] Makefile.in [edit]
[-] demo_altkeys.c [edit]
[-] demo_defkey.c [edit]
[-] xterm-256color.dat [edit]
[-] blue.c [edit]
[-] demo_forms.c [edit]
[-] listused.sh [edit]
[-] lrtest.c [edit]
[-] dots.c [edit]
[-] tclock.c [edit]
[-] cardfile.dat [edit]
[-] make-tar.sh [edit]
[-] redraw.c [edit]
[-] key_names.c [edit]
[-] ins_wide.c [edit]
[-] edit_field.c [edit]
[-] color_name.h [edit]
[-] worm.c [edit]
[-] test_addstr.c [edit]
[-] programs [edit]
[-] gdc.6 [edit]