315 lines
7.1 KiB
C
315 lines
7.1 KiB
C
/* $NetBSD: hack.terminfo.c,v 1.1 2010/02/03 15:34:38 roy Exp $ */
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/*
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* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
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* Amsterdam
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of the Stichting Centrum voor Wiskunde en
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* Informatica, nor the names of its contributors may be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. 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.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: hack.terminfo.c,v 1.1 2010/02/03 15:34:38 roy Exp $");
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#endif /* not lint */
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#include <string.h>
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#include <termios.h>
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#include <term.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "hack.h"
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#include "extern.h"
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#include "def.flag.h" /* for flags.nonull */
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char *CD; /* tested in pri.c: docorner() */
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int CO, LI; /* used in pri.c and whatis.c */
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void
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startup(void)
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{
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/* Will exit if no suitable term found */
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setupterm(NULL, 0, NULL);
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CO = columns;
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LI = lines;
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if (CO < COLNO || LI < ROWNO + 2)
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setclipped();
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if (clear_screen == NULL)
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error("Hack needs clear_screen.");
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if (over_strike)
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error("Hack can't have over_strike.");
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if (cursor_address == NULL) {
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printf("Playing hack without cursor_address is suspect...");
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getret();
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}
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set_whole_screen();
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}
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void
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startscreen(void)
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{
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}
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void
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endscreen(void)
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{
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}
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static int
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xputc(int c)
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{
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return (fputc(c, stdout));
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}
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static void
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xputs(const char *s)
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{
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tputs(s, 1, xputc);
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}
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static void
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cmov(int x, int y)
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{
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char *p;
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p = vtparm(cursor_address, y - 1, x - 1);
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if (p) {
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xputs(p);
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cury = y;
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curx = x;
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}
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}
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static void
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nocmov(int x, int y)
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{
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if (cury > y) {
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if (cursor_up) {
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while (cury > y) { /* Go up. */
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xputs(cursor_up);
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cury--;
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}
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} else if (cursor_address) {
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cmov(x, y);
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} else if (cursor_home) {
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home();
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curs(x, y);
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} /* else impossible("..."); */
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} else if (cury < y) {
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if (cursor_address) {
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cmov(x, y);
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#if 0
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} else if (XD) {
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while (cury < y) {
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xputs(XD);
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cury++;
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}
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#endif
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} else {
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while (cury < y) {
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xputc('\n');
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curx = 1;
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cury++;
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}
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}
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}
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if (curx < x) { /* Go to the right. */
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if (!cursor_right)
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cmov(x, y);
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else /* bah */
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/* should instead print what is there already */
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while (curx < x) {
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xputs(cursor_right);
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curx++;
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}
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} else if (curx > x) {
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while (curx > x)
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backsp();
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}
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}
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/*
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* Cursor movements
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*
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* x,y not xchar: perhaps xchar is unsigned and
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* curx-x would be unsigned as well
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*/
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void
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curs(int x, int y)
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{
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if (y == cury && x == curx)
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return;
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if (!cursor_right && (curx != x || x <= 3)) { /* Extremely primitive */
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cmov(x, y); /* bunker!wtm */
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return;
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}
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if (abs(cury - y) <= 3 && abs(curx - x) <= 3)
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nocmov(x, y);
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else if ((x <= 3 && abs(cury - y) <= 3) ||
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(!cursor_address && x < abs(curx - x)))
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{
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(void) putchar('\r');
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curx = 1;
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nocmov(x, y);
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} else if (!cursor_address) {
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nocmov(x, y);
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} else
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cmov(x, y);
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}
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void
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cl_end(void)
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{
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if (clr_eol)
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xputs(clr_eol);
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else { /* no-CE fix - free after Harold Rynes */
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/*
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* this looks terrible, especially on a slow terminal but is
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* better than nothing
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*/
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int cx = curx, cy = cury;
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while (curx < COLNO) {
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xputc(' ');
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curx++;
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}
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curs(cx, cy);
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}
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}
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void
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clearscreen(void)
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{
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xputs(clear_screen);
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curx = cury = 1;
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}
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void
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home(void)
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{
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char *out;
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if (cursor_home)
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xputs(cursor_home);
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else if ((cursor_address) && (out = vtparm(cursor_address, 0, 0)))
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xputs(out);
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else
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curs(1, 1); /* using UP ... */
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curx = cury = 1;
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}
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void
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standoutbeg(void)
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{
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if (enter_standout_mode && exit_standout_mode && !magic_cookie_glitch)
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xputs(enter_standout_mode);
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}
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void
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standoutend(void)
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{
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if (exit_standout_mode && enter_standout_mode && !magic_cookie_glitch)
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xputs(exit_standout_mode);
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}
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void
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backsp(void)
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{
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if (cursor_left)
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xputs(cursor_left);
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else
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(void) putchar('\b');
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curx--;
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}
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void
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sound_bell(void)
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{
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(void) putchar('\007'); /* curx does not change */
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(void) fflush(stdout);
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}
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void
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delay_output(void)
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{
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/* delay 50 ms - could also use a 'nap'-system call */
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/* or the usleep call like this :-) */
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usleep(50000);
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}
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void
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cl_eos(void)
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{ /* free after Robert Viduya *//* must only be
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* called with curx = 1 */
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if (clr_eos)
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xputs(clr_eos);
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else {
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int cx = curx, cy = cury;
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while (cury <= LI - 2) {
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cl_end();
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xputc('\n');
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curx = 1;
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cury++;
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}
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cl_end();
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curs(cx, cy);
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}
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}
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