diff options
Diffstat (limited to 'usr.bin/window/xx.c')
| -rw-r--r-- | usr.bin/window/xx.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/usr.bin/window/xx.c b/usr.bin/window/xx.c deleted file mode 100644 index 9b68b96..0000000 --- a/usr.bin/window/xx.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Edward Wang at The University of California, Berkeley. - * - * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University 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 REGENTS 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. - */ - -#ifndef lint -static char sccsid[] = "@(#)xx.c 8.1 (Berkeley) 6/6/93"; -#endif /* not lint */ - -#include "ww.h" -#include "xx.h" -#include "tt.h" - -xxinit() -{ - if (ttinit() < 0) - return -1; - xxbufsize = tt.tt_nrow * tt.tt_ncol * 2; - /* ccinit may choose to change xxbufsize */ - if (tt.tt_ntoken > 0 && ccinit() < 0) - return -1; - xxbuf = malloc((unsigned) xxbufsize * sizeof *xxbuf); - if (xxbuf == 0) { - wwerrno = WWE_NOMEM; - return -1; - } - xxbufp = xxbuf; - xxbufe = xxbuf + xxbufsize; - return 0; -} - -xxstart() -{ - (*tt.tt_start)(); - if (tt.tt_ntoken > 0) - ccstart(); - xxreset1(); /* might be a restart */ -} - -xxreset() -{ - if (tt.tt_ntoken > 0) - ccreset(); - xxreset1(); - (*tt.tt_reset)(); -} - -xxreset1() -{ - register struct xx *xp, *xq; - - for (xp = xx_head; xp != 0; xp = xq) { - xq = xp->link; - xxfree(xp); - } - xx_tail = xx_head = 0; - xxbufp = xxbuf; -} - -xxend() -{ - if (tt.tt_scroll_top != 0 || tt.tt_scroll_bot != tt.tt_nrow - 1) - /* tt.tt_setscroll is known to be defined */ - (*tt.tt_setscroll)(0, tt.tt_nrow - 1); - if (tt.tt_modes) - (*tt.tt_setmodes)(0); - if (tt.tt_scroll_down) - (*tt.tt_scroll_down)(1); - (*tt.tt_move)(tt.tt_nrow - 1, 0); - if (tt.tt_ntoken > 0) - ccend(); - (*tt.tt_end)(); - ttflush(); -} - -struct xx * -xxalloc() -{ - register struct xx *xp; - - if (xxbufp > xxbufe) - abort(); - if ((xp = xx_freelist) == 0) - /* XXX can't deal with failure */ - xp = (struct xx *) malloc((unsigned) sizeof *xp); - else - xx_freelist = xp->link; - if (xx_head == 0) - xx_head = xp; - else - xx_tail->link = xp; - xx_tail = xp; - xp->link = 0; - return xp; -} - -xxfree(xp) - register struct xx *xp; -{ - xp->link = xx_freelist; - xx_freelist = xp; -} - -xxmove(row, col) -{ - register struct xx *xp = xx_tail; - - if (xp == 0 || xp->cmd != xc_move) { - xp = xxalloc(); - xp->cmd = xc_move; - } - xp->arg0 = row; - xp->arg1 = col; -} - -xxscroll(dir, top, bot) -{ - register struct xx *xp = xx_tail; - - if (xp != 0 && xp->cmd == xc_scroll && - xp->arg1 == top && xp->arg2 == bot && - (xp->arg0 < 0 && dir < 0 || xp->arg0 > 0 && dir > 0)) { - xp->arg0 += dir; - return; - } - xp = xxalloc(); - xp->cmd = xc_scroll; - xp->arg0 = dir; - xp->arg1 = top; - xp->arg2 = bot; -} - -xxinschar(row, col, c, m) -{ - register struct xx *xp; - - xp = xxalloc(); - xp->cmd = xc_inschar; - xp->arg0 = row; - xp->arg1 = col; - xp->arg2 = c; - xp->arg3 = m; -} - -xxinsspace(row, col) -{ - register struct xx *xp = xx_tail; - - if (xp != 0 && xp->cmd == xc_insspace && xp->arg0 == row && - col >= xp->arg1 && col <= xp->arg1 + xp->arg2) { - xp->arg2++; - return; - } - xp = xxalloc(); - xp->cmd = xc_insspace; - xp->arg0 = row; - xp->arg1 = col; - xp->arg2 = 1; -} - -xxdelchar(row, col) -{ - register struct xx *xp = xx_tail; - - if (xp != 0 && xp->cmd == xc_delchar && - xp->arg0 == row && xp->arg1 == col) { - xp->arg2++; - return; - } - xp = xxalloc(); - xp->cmd = xc_delchar; - xp->arg0 = row; - xp->arg1 = col; - xp->arg2 = 1; -} - -xxclear() -{ - register struct xx *xp; - - xxreset1(); - xp = xxalloc(); - xp->cmd = xc_clear; -} - -xxclreos(row, col) -{ - register struct xx *xp = xxalloc(); - - xp->cmd = xc_clreos; - xp->arg0 = row; - xp->arg1 = col; -} - -xxclreol(row, col) -{ - register struct xx *xp = xxalloc(); - - xp->cmd = xc_clreol; - xp->arg0 = row; - xp->arg1 = col; -} - -xxwrite(row, col, p, n, m) - char *p; -{ - register struct xx *xp; - - if (xxbufp + n + 1 > xxbufe) - xxflush(0); - xp = xxalloc(); - xp->cmd = xc_write; - xp->arg0 = row; - xp->arg1 = col; - xp->arg2 = n; - xp->arg3 = m; - xp->buf = xxbufp; - bcopy(p, xxbufp, n); - xxbufp += n; - *xxbufp++ = char_sep; -} |
