NetBSD/lib/libcurses/line.c

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/* $NetBSD: line.c,v 1.3 2001/06/13 10:45:57 wiz Exp $ */
/*-
* Copyright (c) 1998-1999 Brett Lymn
* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
* All rights reserved.
*
* This code has been donated to The NetBSD Foundation by the Author.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*/
#include <sys/cdefs.h>
#ifndef lint
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__RCSID("$NetBSD: line.c,v 1.3 2001/06/13 10:45:57 wiz Exp $");
#endif /* not lint */
#include "curses.h"
#include "curses_private.h"
/*
* hline --
* Draw a horizontal line of character c on stdscr.
*/
int
hline(chtype ch, int count)
{
return whline(stdscr, ch, count);
}
/*
* mvhline --
* Move to location (y, x) and draw a horizontal line of character c
* on stdscr.
*/
int
mvhline(int y, int x, chtype ch, int count)
{
return mvwhline(stdscr, y, x, ch, count);
}
/*
* mvwhline --
* Move to location (y, x) and draw a horizontal line of character c
* in the given window.
*/
int
mvwhline(WINDOW *win, int y, int x, chtype ch, int count)
{
if (wmove(win, y, x) == ERR)
return ERR;
return whline(win, ch, count);
}
/*
* whline --
* Draw a horizontal line of character c in the given window moving
* towards the rightmost column. At most count characters are drawn
* or until the edge of the screen, whichever comes first.
*/
int
whline(WINDOW *win, chtype ch, int count)
{
int ocurx, n, i;
n = min(count, win->maxx - win->curx);
ocurx = win->curx;
if (!(ch & __CHARTEXT))
ch |= ACS_HLINE;
for (i = 0; i < n; i++)
mvwaddch(win, win->cury, ocurx + i, ch);
wmove(win, win->cury, ocurx);
return OK;
}
/*
* vline --
* Draw a vertical line of character ch on stdscr.
*/
int
vline(chtype ch, int count)
{
return wvline(stdscr, ch, count);
}
/*
* mvvline --
* Move to the given location an draw a vertical line of character ch.
*/
int
mvvline(int y, int x, chtype ch, int count)
{
return mvwvline(stdscr, y, x, ch, count);
}
/*
* mvwvline --
* Move to the given location and draw a vertical line of character ch
* on the given window.
*/
int
mvwvline(WINDOW *win, int y, int x, chtype ch, int count)
{
if (wmove(win, y, x) == ERR)
return ERR;
return wvline(win, ch, count);
}
/*
* wvline --
* Draw a vertical line of character ch in the given window moving
* towards the bottom of the screen. At most count characters are drawn
* or until the edge of the screen, whichever comes first.
*/
int
wvline(WINDOW *win, chtype ch, int count)
{
int ocury, ocurx, n, i;
n = min(count, win->maxy - win->cury);
ocury = win->cury;
ocurx = win->curx;
if (!(ch & __CHARTEXT))
ch |= ACS_VLINE;
for (i = 0; i < n; i++)
mvwaddch(win, ocury + i, ocurx, ch);
wmove(win, ocury, ocurx);
return OK;
}