254 lines
6.1 KiB
C
254 lines
6.1 KiB
C
/* $NetBSD: ins_wch.c,v 1.11 2017/01/31 09:17:53 roy Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2005 The NetBSD Foundation Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from code donated to the NetBSD Foundation
|
|
* by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
|
|
*
|
|
*
|
|
* 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 NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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
|
|
__RCSID("$NetBSD: ins_wch.c,v 1.11 2017/01/31 09:17:53 roy Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "curses.h"
|
|
#include "curses_private.h"
|
|
|
|
/*
|
|
* ins_wch --
|
|
* Do an insert-char on the line, leaving (cury, curx) unchanged.
|
|
*/
|
|
int
|
|
ins_wch(const cchar_t *wch)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return wins_wch(stdscr, wch);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* mvins_wch --
|
|
* Do an insert-char on the line at (y, x).
|
|
*/
|
|
int
|
|
mvins_wch(int y, int x, const cchar_t *wch)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
return mvwins_wch(stdscr, y, x, wch);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* mvwins_wch --
|
|
* Do an insert-char on the line at (y, x) in the given window.
|
|
*/
|
|
int
|
|
mvwins_wch(WINDOW *win, int y, int x, const cchar_t *wch)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
if (wmove(win, y, x) == ERR)
|
|
return ERR;
|
|
|
|
return wins_wch(stdscr, wch);
|
|
#endif /* HAVE_WCHAR */
|
|
}
|
|
|
|
/*
|
|
* wins_wch --
|
|
* Do an insert-char on the line, leaving (cury, curx) unchanged.
|
|
*/
|
|
int
|
|
wins_wch(WINDOW *win, const cchar_t *wch)
|
|
{
|
|
#ifndef HAVE_WCHAR
|
|
return ERR;
|
|
#else
|
|
__LDATA *start, *temp1, *temp2;
|
|
__LINE *lnp;
|
|
int cw, pcw, x, y, sx, ex, newx, i;
|
|
nschar_t *np, *tnp;
|
|
wchar_t ws[] = L" ";
|
|
|
|
/* check for non-spacing characters */
|
|
if (!wch)
|
|
return OK;
|
|
cw = wcwidth(wch->vals[0]);
|
|
if (cw < 0)
|
|
cw = 1;
|
|
if (!cw)
|
|
return wadd_wch( win, wch );
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_INPUT, "--before--\n");
|
|
for (x = 0; x < win->maxx; x++)
|
|
__CTRACE(__CTRACE_INPUT, "wins_wch: (0,%d)=(%x,%x,%p)\n", x,
|
|
win->alines[0]->line[x].ch,
|
|
win->alines[0]->line[x].attr,
|
|
win->alines[0]->line[x].nsp);
|
|
#endif /* DEBUG */
|
|
x = win->curx;
|
|
y = win->cury;
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_INPUT, "wins_wch: (%d,%d)\n", y, x);
|
|
#endif /* DEBUG */
|
|
switch (wch->vals[0]) {
|
|
case L'\b':
|
|
if (--x < 0)
|
|
x = 0;
|
|
win->curx = x;
|
|
return OK;
|
|
case L'\r':
|
|
win->curx = 0;
|
|
return OK;
|
|
case L'\n':
|
|
wclrtoeol(win);
|
|
if (y == win->scr_b) {
|
|
if (!(win->flags & __SCROLLOK))
|
|
return ERR;
|
|
scroll(win);
|
|
}
|
|
return OK;
|
|
case L'\t':
|
|
if (wins_nwstr(win, ws, min(win->maxx - x,
|
|
TABSIZE - (x % TABSIZE))) == ERR)
|
|
return ERR;
|
|
return OK;
|
|
}
|
|
|
|
/* locate current cell */
|
|
x = win->curx;
|
|
y = win->cury;
|
|
lnp = win->alines[y];
|
|
start = &win->alines[y]->line[x];
|
|
sx = x;
|
|
pcw = WCOL(*start);
|
|
if (pcw < 0) {
|
|
start += pcw;
|
|
sx += pcw;
|
|
}
|
|
if (cw > win->maxx - sx)
|
|
return ERR;
|
|
lnp->flags |= __ISDIRTY;
|
|
newx = sx + win->ch_off;
|
|
if (newx < *lnp->firstchp)
|
|
*lnp->firstchp = newx;
|
|
|
|
/* shift all complete characters */
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_INPUT, "wins_wch: shift all characters\n");
|
|
#endif /* DEBUG */
|
|
temp1 = &win->alines[y]->line[win->maxx - 1];
|
|
temp2 = temp1 - cw;
|
|
pcw = WCOL(*(temp2 + 1));
|
|
if (pcw < 0) {
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_INPUT, "wins_wch: clear EOL\n");
|
|
#endif /* DEBUG */
|
|
temp2 += pcw;
|
|
while (temp1 > temp2 + cw) {
|
|
np = temp1->nsp;
|
|
if (np) {
|
|
while (np) {
|
|
tnp = np->next;
|
|
free(np);
|
|
np = tnp;
|
|
}
|
|
temp1->nsp = NULL;
|
|
}
|
|
temp1->ch = (wchar_t)btowc((int)win->bch );
|
|
if (_cursesi_copy_nsp(win->bnsp, temp1) == ERR)
|
|
return ERR;
|
|
temp1->attr = win->battr;
|
|
SET_WCOL(*temp1, 1);
|
|
temp1--;
|
|
}
|
|
}
|
|
while (temp2 >= start) {
|
|
(void)memcpy(temp1, temp2, sizeof(__LDATA));
|
|
temp1--, temp2--;
|
|
}
|
|
|
|
/* update character under cursor */
|
|
start->nsp = NULL;
|
|
start->ch = wch->vals[0];
|
|
start->attr = wch->attributes & WA_ATTRIBUTES;
|
|
SET_WCOL(*start, cw);
|
|
if (wch->elements > 1) {
|
|
for (i = 1; i < wch->elements; i++) {
|
|
np = malloc(sizeof(nschar_t));
|
|
if (!np)
|
|
return ERR;
|
|
np->ch = wch->vals[i];
|
|
np->next = start->nsp;
|
|
start->nsp = np;
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
__CTRACE(__CTRACE_INPUT, "wins_wch: insert (%x,%x,%p)\n",
|
|
start->ch, start->attr, start->nsp);
|
|
#endif /* DEBUG */
|
|
temp1 = start + 1;
|
|
ex = x + 1;
|
|
while (ex - x < cw) {
|
|
temp1->ch = wch->vals[0];
|
|
SET_WCOL(*temp1, x - ex);
|
|
temp1->nsp = NULL;
|
|
ex++, temp1++;
|
|
}
|
|
#ifdef DEBUG
|
|
{
|
|
__CTRACE(__CTRACE_INPUT, "--after---\n");
|
|
for (x = 0; x < win->maxx; x++)
|
|
__CTRACE(__CTRACE_INPUT,
|
|
"wins_wch: (0,%d)=(%x,%x,%p)\n", x,
|
|
win->alines[0]->line[x].ch,
|
|
win->alines[0]->line[x].attr,
|
|
win->alines[0]->line[x].nsp);
|
|
}
|
|
#endif /* DEBUG */
|
|
newx = win->maxx - 1 + win->ch_off;
|
|
if (newx > *lnp->lastchp)
|
|
*lnp->lastchp = newx;
|
|
__touchline(win, y, sx, (int)win->maxx - 1);
|
|
__sync(win);
|
|
return OK;
|
|
#endif /* HAVE_WCHAR */
|
|
}
|