makebox.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1986 AT&T
* All Rights Reserved
*/
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */
#include <curses.h>
#include "wish.h"
#include "vt.h"
#include "vtdefs.h"
#include "attrs.h"
#define TL 0
#define BL 1
#define BR 2
#define TR 3
static vt_id side[4] = { -1, -1, -1, -1 };
bool
make_box(flag, srow, scol, rows, cols)
bool flag;
register int srow;
register int scol;
register int rows;
register int cols;
{
void remove_box();
bool corner();
if (srow < 0 || scol < 0 || cols < 1 || rows < 1) {
remove_box();
return FALSE;
}
if (side[TL] >= 0)
remove_box();
rows--;
cols--;
if (!corner(TL, srow, scol, ACS_ULCORNER, flag))
return FALSE;
if (!corner(BL, srow + rows, scol, ACS_LLCORNER, TRUE))
return FALSE;
if (!corner(BR, srow + rows, scol + cols, ACS_LRCORNER, !flag))
return FALSE;
if (!corner(TR, srow, scol + cols, ACS_URCORNER, TRUE))
return FALSE;
if (flag)
vt_current(side[BR]);
else
vt_current(side[TL]);
/* vt_current(side[flag ? BR : TL]); amdahl compatibility */
return TRUE;
}
static bool
corner(which, row, col, ch, flag)
int which;
int row;
int col;
chtype ch;
int flag;
{
register vt_id vid;
register struct vt *v;
static void remove_box();
if ((vid = side[which] = vt_create(NULL, VT_NONUMBER | VT_NOBORDER, row, col, 1, 1)) < 0) {
remove_box();
return FALSE;
}
vt_current(vid);
v = &VT_array[vid];
scrollok(v->win, FALSE);
if (flag)
waddch(v->win, ch | Attr_visible);
else
waddch(v->win, ch);
v->flags |= VT_DIRTY;
return TRUE;
}
static void
remove_box()
{
register int i;
for (i = 0; i < 4; i++) {
if (side[i] >= 0)
vt_close(side[i]);
side[i] = -1;
}
}