2a780e62ed
without refresh. If the window is not dirty but the window cursor position does not match curscr then move the cursor. This fixes the issues seen in PR lib/54263.
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/* $NetBSD: in_wch.c,v 1.7 2019/06/09 07:40:14 blymn Exp $ */
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/*
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* Copyright (c) 2005 The NetBSD Foundation Inc.
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* All rights reserved.
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*
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* This code is derived from code donated to the NetBSD Foundation
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* by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
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*
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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 NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* 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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#ifndef lint
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__RCSID("$NetBSD: in_wch.c,v 1.7 2019/06/09 07:40:14 blymn Exp $");
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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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/*
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* in_wch --
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* Return wide character at cursor position from stdscr.
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*/
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int
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in_wch(cchar_t *wcval)
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{
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return win_wch(stdscr, wcval);
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}
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/*
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* mvin_wch --
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* Return wide character at position (y, x) from stdscr.
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*/
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int
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mvin_wch(int y, int x, cchar_t *wcval)
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{
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return mvwin_wch(stdscr, y, x, wcval);
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}
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/*
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* mvwin_wch --
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* Return wide character at position (y, x) from the given window.
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*/
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int
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mvwin_wch(WINDOW *win, int y, int x, cchar_t *wcval)
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{
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if (wmove(win, y, x) == ERR)
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return ERR;
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return win_wch(win, wcval);
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}
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/*
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* win_wch --
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* Return wide character at cursor position.
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*/
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int
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win_wch(WINDOW *win, cchar_t *wcval)
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{
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nschar_t *np;
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__LDATA *lp = &win->alines[win->cury]->line[win->curx];
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int cw = WCOL(*lp);
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if (cw < 0)
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lp += cw;
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wcval->vals[0] = lp->ch;
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wcval->attributes = lp->attr;
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wcval->elements = 1;
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np = lp->nsp;
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if (np) {
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do {
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wcval->vals[wcval->elements++] = np->ch;
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np = np-> next;
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} while (np);
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}
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return OK;
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}
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