164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
/* $NetBSD: curses.c,v 1.28 2017/01/31 09:17:53 roy Exp $ */
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/*
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* Copyright (c) 1981, 1993, 1994
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* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <stdlib.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)curses.c 8.3 (Berkeley) 5/4/94";
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#else
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__RCSID("$NetBSD: curses.c,v 1.28 2017/01/31 09:17:53 roy Exp $");
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#endif
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#endif /* not lint */
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#include "curses.h"
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#include "curses_private.h"
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/* Private. */
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int __echoit = 1; /* If stty indicates ECHO. */
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int __pfast;
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int __rawmode = 0; /* If stty indicates RAW mode. */
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int __noqch = 0;
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/* If terminal doesn't have
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* insert/delete line capabilities
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* for quick change on refresh.
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*/
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char __CA;
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/*
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* Public.
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*
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* XXX
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* UPPERCASE isn't used by libcurses, and is left for backward
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* compatibility only.
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*/
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WINDOW *curscr; /* Current screen. */
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WINDOW *stdscr; /* Standard screen. */
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WINDOW *__virtscr; /* Virtual screen (for doupdate()). */
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SCREEN *_cursesi_screen; /* the current screen we are using */
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volatile bool _reentrant; /* If true, some global vars are ro. */
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int COLS; /* Columns on the screen. */
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int LINES; /* Lines on the screen. */
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int ESCDELAY; /* ms delay between keys for esc seq */
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int TABSIZE; /* Size of a tab. */
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int COLORS; /* Maximum colors on the screen */
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int COLOR_PAIRS = 0; /* Maximum color pairs on the screen */
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int My_term = 0; /* Use Def_term regardless. */
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const char *Def_term = "unknown"; /* Default terminal type. */
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char __GT; /* Gtty indicates tabs. */
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char __NONL; /* Term can't hack LF doing a CR. */
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char __UPPERCASE; /* Terminal is uppercase only. */
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#ifdef HAVE_WCHAR
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/*
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* Copy the non-spacing character list (src_nsp) to the given character,
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* allocate or free storage as required.
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*/
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int
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_cursesi_copy_nsp(nschar_t *src_nsp, struct __ldata *ch)
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{
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nschar_t *np, *tnp, *pnp;
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pnp = NULL;
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np = src_nsp;
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if (np) {
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tnp = ch->nsp;
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while (np) {
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if (tnp) {
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tnp->ch = np->ch;
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pnp = tnp;
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tnp = tnp->next;
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} else {
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tnp = malloc(sizeof(nschar_t));
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if (!tnp)
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return ERR;
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tnp->ch = np->ch;
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pnp->next = tnp;
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tnp->next = NULL;
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pnp = tnp;
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tnp = NULL;
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}
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np = np->next;
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}
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np = tnp;
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if (np) {
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pnp->next = NULL;
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__cursesi_free_nsp(np);
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}
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} else {
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if (ch->nsp) {
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__cursesi_free_nsp(ch->nsp);
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ch->nsp = NULL;
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}
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}
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return OK;
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}
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/*
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* Free the storage associated with a non-spacing character - traverse the
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* linked list until all storage is done.
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*/
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void
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__cursesi_free_nsp(nschar_t *inp)
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{
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nschar_t *tnp, *np;
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np = inp;
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if (np) {
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while (np) {
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tnp = np->next;
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free(np);
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np = tnp;
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}
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}
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}
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/*
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* Traverse all the cells in the given window free'ing the non-spacing
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* character storage.
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*/
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void
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__cursesi_win_free_nsp(WINDOW *win)
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{
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int i, j;
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__LDATA *sp;
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for (i = 0; i < win->maxy; i++) {
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for (sp = win->alines[i]->line, j = 0; j < win->maxx;
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j++, sp++) {
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__cursesi_free_nsp(sp->nsp);
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}
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}
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}
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#endif
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