NetBSD-5.0.2/usr.bin/window/cmd7.c
/* $NetBSD: cmd7.c,v 1.8 2006/05/02 22:30:25 christos Exp $ */
/*
* Copyright (c) 1983, 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. 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.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)cmd7.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: cmd7.c,v 1.8 2006/05/02 22:30:25 christos Exp $");
#endif
#endif /* not lint */
#include <stdlib.h>
#include <unistd.h>
#include "defs.h"
#include "window_string.h"
void unyank(void);
void yank_highlight(int, int, int, int);
void yank_highlight_line(int, int, int);
void yank_line(int, int, int);
/*
* Window size.
*/
void
c_size(struct ww *w)
{
int col, row;
if (!terse)
wwputs("New window size (lower right corner): ", cmdwin);
col = MIN(w->ww_w.r, wwncol) - 1;
row = MIN(w->ww_w.b, wwnrow) - 1;
wwadd(boxwin, framewin->ww_back);
for (;;) {
wwbox(boxwin, w->ww_w.t - 1, w->ww_w.l - 1,
row - w->ww_w.t + 3, col - w->ww_w.l + 3);
wwsetcursor(row, col);
while (wwpeekc() < 0)
wwiomux();
switch (getpos(&row, &col, w->ww_w.t, w->ww_w.l,
wwnrow - 1, wwncol - 1)) {
case 3:
wwunbox(boxwin);
wwdelete(boxwin);
return;
case 2:
wwunbox(boxwin);
break;
case 1:
wwunbox(boxwin);
case 0:
continue;
}
break;
}
wwdelete(boxwin);
if (!terse)
wwputc('\n', cmdwin);
wwcurtowin(cmdwin);
sizewin(w, row - w->ww_w.t + 1, col - w->ww_w.l + 1);
}
/*
* Yank and put
*/
struct yb {
char *line;
int length;
struct yb *link;
};
struct yb *yb_head, *yb_tail;
void
c_yank(void)
{
struct ww *w = selwin;
int col1, row1;
int col2, row2;
int r, c;
if (!terse)
wwputs("Yank starting position: ", cmdwin);
wwcursor(w, 0);
row1 = w->ww_cur.r;
col1 = w->ww_cur.c;
for (;;) {
wwsetcursor(row1, col1);
while (wwpeekc() < 0)
wwiomux();
switch (getpos(&row1, &col1, w->ww_i.t, w->ww_i.l,
w->ww_i.b - 1, w->ww_i.r - 1)) {
case 3:
goto out;
case 2:
break;
case 1:
case 0:
continue;
}
break;
}
if (!terse)
wwputs("\nYank ending position: ", cmdwin);
row2 = row1;
col2 = col1;
for (;;) {
wwsetcursor(row2, col2);
while (wwpeekc() < 0)
wwiomux();
r = row2;
c = col2;
switch (getpos(&row2, &col2, w->ww_i.t, w->ww_i.l,
w->ww_i.b - 1, w->ww_i.r - 1)) {
case 3:
yank_highlight(row1, col1, r, c);
goto out;
case 2:
break;
case 1:
yank_highlight(row1, col1, r, c);
yank_highlight(row1, col1, row2, col2);
case 0:
continue;
}
break;
}
if (row2 < row1 || (row2 == row1 && col2 < col1)) {
r = row1;
c = col1;
row1 = row2;
col1 = col2;
row2 = r;
col2 = c;
}
unyank();
c = col1;
for (r = row1; r < row2; r++) {
yank_line(r, c, w->ww_b.r);
c = w->ww_b.l;
}
yank_line(r, c, col2);
yank_highlight(row1, col1, row2, col2);
if (!terse)
wwputc('\n', cmdwin);
out:
wwcursor(w, 1);
}
void
yank_highlight(int row1, int col1, int row2, int col2)
{
struct ww *w = selwin;
int r, c;
if ((wwavailmodes & WWM_REV) == 0)
return;
if (row2 < row1 || (row2 == row1 && col2 < col1)) {
r = row1;
c = col1;
row1 = row2;
col1 = col2;
row2 = r;
col2 = c;
}
c = col1;
for (r = row1; r < row2; r++) {
yank_highlight_line(r, c, w->ww_b.r);
c = w->ww_b.l;
}
yank_highlight_line(r, c, col2);
}
void
yank_highlight_line(int r, int c, int cend)
{
struct ww *w = selwin;
char *win;
if (r < w->ww_i.t || r >= w->ww_i.b)
return;
if (c < w->ww_i.l)
c = w->ww_i.l;
if (cend >= w->ww_i.r)
cend = w->ww_i.r;
for (win = w->ww_win[r] + c; c < cend; c++, win++) {
*win ^= WWM_REV;
if (wwsmap[r][c] == w->ww_index) {
if (*win == 0)
w->ww_nvis[r]++;
else if (*win == WWM_REV)
w->ww_nvis[r]--;
wwns[r][c].c_m ^= WWM_REV;
wwtouched[r] |= WWU_TOUCHED;
}
}
}
void
unyank(void)
{
struct yb *yp, *yq;
for (yp = yb_head; yp; yp = yq) {
yq = yp->link;
str_free(yp->line);
free((char *) yp);
}
yb_head = yb_tail = 0;
}
void
yank_line(int r, int c, int cend)
{
struct yb *yp;
int nl = 0;
int n;
union ww_char *bp;
char *cp;
if (c == cend)
return;
if ((yp = (struct yb *) malloc(sizeof *yp)) == 0)
return;
yp->link = 0;
nl = cend == selwin->ww_b.r;
bp = selwin->ww_buf[r];
for (cend--; cend >= c; cend--)
if (bp[cend].c_c != ' ')
break;
yp->length = n = cend - c + 1;
if (nl)
yp->length++;
if ((yp->line = str_alloc(yp->length + 1)) == NULL) {
free(yp);
return;
}
for (bp += c, cp = yp->line; --n >= 0;)
*cp++ = bp++->c_c;
if (nl)
*cp++ = '\n';
*cp = 0;
if (yb_head)
yb_tail = yb_tail->link = yp;
else
yb_head = yb_tail = yp;
}
void
c_put(void)
{
struct yb *yp;
for (yp = yb_head; yp; yp = yp->link)
(void) write(selwin->ww_pty, yp->line, yp->length);
}