150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/*
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* Copyright (c) 1987 Regents of the University of California.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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#ifndef lint
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/*static char sccsid[] = "from: @(#)addbytes.c 5.4 (Berkeley) 6/1/90";*/
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static char rcsid[] = "$Id: addbytes.c,v 1.4 1993/08/01 18:35:58 mycroft Exp $";
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#endif /* not lint */
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# include "curses.ext"
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waddbytes(win, bytes, count)
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reg WINDOW *win;
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reg char *bytes;
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int count;
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{
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chtype c;
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reg int i;
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for (i = 0; i < count; i++) {
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c = (unsigned char) *bytes++;
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if (_waddbytes(win, &c, 1) == ERR)
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return ERR;
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}
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return OK;
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}
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/*
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* This routine adds the character to the current position
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*
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*/
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_waddbytes(win, bytes, count)
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reg WINDOW *win;
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reg chtype *bytes;
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reg int count;
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{
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#define SYNCH_OUT() {win->_cury = y; win->_curx = x;}
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#define SYNCH_IN() {y = win->_cury; x = win->_curx;}
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reg int x, y;
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reg int newx;
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SYNCH_IN();
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while (count--) {
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register chtype c;
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static chtype blanks[] = {' ',' ',' ',' ',' ',' ',' ',' '};
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c = *bytes++;
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switch (c) {
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case '\t':
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SYNCH_OUT();
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if (_waddbytes(win, blanks, 8-(x%8)) == ERR) {
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return ERR;
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}
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SYNCH_IN();
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break;
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default:
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# ifdef FULLDEBUG
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fprintf(outf, "ADDBYTES: 1: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]);
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# endif
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if (win->_flags & _STANDOUT)
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c |= _STANDOUT;
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{
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# ifdef FULLDEBUG
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fprintf(outf, "ADDBYTES(%0.2o, %d, %d)\n", win, y, x);
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# endif
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if (win->_y[y][x] != c) {
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newx = x + win->_ch_off;
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if (win->_firstch[y] == _NOCHANGE) {
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win->_firstch[y] =
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win->_lastch[y] = newx;
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} else if (newx < win->_firstch[y])
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win->_firstch[y] = newx;
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else if (newx > win->_lastch[y])
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win->_lastch[y] = newx;
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# ifdef FULLDEBUG
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fprintf(outf, "ADDBYTES: change gives f/l: %d/%d [%d/%d]\n",
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win->_firstch[y], win->_lastch[y],
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win->_firstch[y] - win->_ch_off,
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win->_lastch[y] - win->_ch_off);
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# endif
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}
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}
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win->_y[y][x++] = c;
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if (x >= win->_maxx) {
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x = 0;
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newline:
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if (++y >= win->_maxy)
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if (win->_scroll) {
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--y;
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SYNCH_OUT();
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scroll(win);
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SYNCH_IN();
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}
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else
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return ERR;
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}
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# ifdef FULLDEBUG
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fprintf(outf, "ADDBYTES: 2: y = %d, x = %d, firstch = %d, lastch = %d\n", y, x, win->_firstch[y], win->_lastch[y]);
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# endif
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break;
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case '\n':
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SYNCH_OUT();
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wclrtoeol(win);
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SYNCH_IN();
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if (!NONL)
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x = 0;
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goto newline;
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case '\r':
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x = 0;
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break;
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case '\b':
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if (--x < 0)
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x = 0;
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break;
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}
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}
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SYNCH_OUT();
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return OK;
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}
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