214 lines
5.3 KiB
C
214 lines
5.3 KiB
C
/* $NetBSD: touchwin.c,v 1.24 2007/05/28 15:01:58 blymn Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1981, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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
|
|
#if 0
|
|
static char sccsid[] = "@(#)touchwin.c 8.2 (Berkeley) 5/4/94";
|
|
#else
|
|
__RCSID("$NetBSD: touchwin.c,v 1.24 2007/05/28 15:01:58 blymn Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
/*
|
|
* is_linetouched --
|
|
* Indicate if line has been touched or not.
|
|
*/
|
|
bool
|
|
is_linetouched(WINDOW *win, int line)
|
|
{
|
|
if (line > win->maxy)
|
|
return FALSE;
|
|
|
|
return ((win->lines[line]->flags & __ISDIRTY) != 0);
|
|
}
|
|
|
|
/*
|
|
* touchline --
|
|
* Touch count lines starting at start. This is the SUS v2 compliant
|
|
* version.
|
|
*/
|
|
int
|
|
touchline(WINDOW *win, int start, int count)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "touchline: (%p, %d, %d)\n", win, start, count);
|
|
#endif
|
|
return wtouchln(win, start, count, 1);
|
|
}
|
|
|
|
/*
|
|
* wredrawln --
|
|
* Mark count lines starting at start as corrupted. Implemented using
|
|
* wtouchln().
|
|
*/
|
|
int wredrawln(WINDOW *win, int start, int count)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "wredrawln: (%p, %d, %d)\n", win, start, count);
|
|
#endif
|
|
return wtouchln(win, start, count, 1);
|
|
}
|
|
|
|
/*
|
|
* is_wintouched --
|
|
* Check if the window has been touched.
|
|
*/
|
|
bool
|
|
is_wintouched(WINDOW *win)
|
|
{
|
|
int y, maxy;
|
|
|
|
maxy = win->maxy;
|
|
for (y = 0; y < maxy; y++) {
|
|
if (is_linetouched(win, y) == TRUE)
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* touchwin --
|
|
* Make it look like the whole window has been changed.
|
|
*/
|
|
int
|
|
touchwin(WINDOW *win)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "touchwin: (%p)\n", win);
|
|
#endif
|
|
return wtouchln(win, 0, win->maxy, 1);
|
|
}
|
|
|
|
/*
|
|
* redrawwin --
|
|
* Mark entire window as corrupted. Implemented using wtouchln().
|
|
*/
|
|
int
|
|
redrawwin(WINDOW *win)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "redrawwin: (%p)\n", win);
|
|
#endif
|
|
return wtouchln(win, 0, win->maxy, 1);
|
|
}
|
|
|
|
/*
|
|
* untouchwin --
|
|
* Make it look like the window has not been changed.
|
|
*/
|
|
int
|
|
untouchwin(WINDOW *win)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "untouchwin: (%p)\n", win);
|
|
#endif
|
|
return wtouchln(win, 0, win->maxy, 0);
|
|
}
|
|
|
|
/*
|
|
* wtouchln --
|
|
* If changed is 1 then touch n lines starting at line. If changed
|
|
* is 0 then mark the lines as unchanged.
|
|
*/
|
|
int
|
|
wtouchln(WINDOW *win, int line, int n, int changed)
|
|
{
|
|
int y;
|
|
__LINE *wlp;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "wtouchln: (%p) %d, %d, %d\n",
|
|
win, line, n, changed);
|
|
#endif
|
|
if (line + n > win->maxy)
|
|
line = win->maxy - n;
|
|
for (y = line; y < line + n; y++) {
|
|
if (changed == 1)
|
|
__touchline(win, y, 0, (int) win->maxx - 1);
|
|
else {
|
|
wlp = win->lines[y];
|
|
if (*wlp->firstchp >= win->ch_off &&
|
|
*wlp->firstchp < win->maxx + win->ch_off)
|
|
*wlp->firstchp = win->maxx + win->ch_off;
|
|
if (*wlp->lastchp >= win->ch_off &&
|
|
*wlp->lastchp < win->maxx + win->ch_off)
|
|
*wlp->lastchp = win->ch_off;
|
|
wlp->flags &= ~__ISDIRTY;
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
__touchwin(WINDOW *win)
|
|
{
|
|
int y, maxy;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "__touchwin: (%p)\n", win);
|
|
#endif
|
|
maxy = win->maxy;
|
|
for (y = 0; y < maxy; y++)
|
|
__touchline(win, y, 0, (int) win->maxx - 1);
|
|
return (OK);
|
|
}
|
|
|
|
int
|
|
__touchline(WINDOW *win, int y, int sx, int ex)
|
|
{
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "__touchline: (%p, %d, %d, %d)\n",
|
|
win, y, sx, ex);
|
|
__CTRACE(__CTRACE_LINE, "__touchline: first = %d, last = %d\n",
|
|
*win->lines[y]->firstchp, *win->lines[y]->lastchp);
|
|
#endif
|
|
sx += win->ch_off;
|
|
ex += win->ch_off;
|
|
if (!(win->lines[y]->flags & __ISDIRTY))
|
|
win->lines[y]->flags |= __ISDIRTY;
|
|
/* firstchp/lastchp are shared between parent window and sub-window. */
|
|
if (*win->lines[y]->firstchp > sx)
|
|
*win->lines[y]->firstchp = sx;
|
|
if (*win->lines[y]->lastchp < ex)
|
|
*win->lines[y]->lastchp = ex;
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_LINE, "__touchline: first = %d, last = %d\n",
|
|
*win->lines[y]->firstchp, *win->lines[y]->lastchp);
|
|
#endif
|
|
return (OK);
|
|
}
|