1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <sys/types.h>
45*0Sstevel@tonic-gate #include <string.h>
46*0Sstevel@tonic-gate #include "curses_inc.h"
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate /*
49*0Sstevel@tonic-gate * Insert/delete lines
50*0Sstevel@tonic-gate * id < 0 : number of lines to delete
51*0Sstevel@tonic-gate * id > 0 : number of lines to insert
52*0Sstevel@tonic-gate */
53*0Sstevel@tonic-gate
54*0Sstevel@tonic-gate int
winsdelln(WINDOW * win,int id)55*0Sstevel@tonic-gate winsdelln(WINDOW *win, int id)
56*0Sstevel@tonic-gate {
57*0Sstevel@tonic-gate int endy, endx, to, fr, num_lines, dir;
58*0Sstevel@tonic-gate chtype *sw;
59*0Sstevel@tonic-gate char *mk;
60*0Sstevel@tonic-gate bool savimmed, savesync;
61*0Sstevel@tonic-gate short x, y, quick, *begch, *endch;
62*0Sstevel@tonic-gate #ifdef _VR3_COMPAT_CODE
63*0Sstevel@tonic-gate /* LINTED */
64*0Sstevel@tonic-gate void (*update_ptr)();
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate /*
67*0Sstevel@tonic-gate * Null out the update pointer so that in wclrtoeol we do not
68*0Sstevel@tonic-gate * update the _y16 area but we wait till the bottom of this
69*0Sstevel@tonic-gate * function to do it in one fell swoop.
70*0Sstevel@tonic-gate */
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate if (_y16update) {
73*0Sstevel@tonic-gate update_ptr = _y16update;
74*0Sstevel@tonic-gate _y16update = NULL;
75*0Sstevel@tonic-gate } else
76*0Sstevel@tonic-gate update_ptr = NULL;
77*0Sstevel@tonic-gate #endif /* _VR3_COMPAT_CODE */
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate if ((win->_cury >= win->_tmarg) && (win->_cury <= win->_bmarg))
80*0Sstevel@tonic-gate endy = win->_bmarg + 1;
81*0Sstevel@tonic-gate else
82*0Sstevel@tonic-gate endy = win->_maxy;
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate if (id < 0) {
85*0Sstevel@tonic-gate /*
86*0Sstevel@tonic-gate * Check that the amount of lines to delete aren't larger
87*0Sstevel@tonic-gate * than the window. We save num_lines only so that we
88*0Sstevel@tonic-gate * don't have to re-compute if the if comes out true.
89*0Sstevel@tonic-gate */
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate if ((num_lines = win->_cury - endy) > id)
92*0Sstevel@tonic-gate id = num_lines;
93*0Sstevel@tonic-gate
94*0Sstevel@tonic-gate /*
95*0Sstevel@tonic-gate * "fr" is the line that we are coming "fr"om and
96*0Sstevel@tonic-gate * moving "to" the new place. This is the offset which
97*0Sstevel@tonic-gate * we have to re-align our pointers by.
98*0Sstevel@tonic-gate * We want to start setting the current line's pointer
99*0Sstevel@tonic-gate * to point to the offset's line. We want to move line "fr"
100*0Sstevel@tonic-gate * to line "to".
101*0Sstevel@tonic-gate */
102*0Sstevel@tonic-gate
103*0Sstevel@tonic-gate to = win->_cury;
104*0Sstevel@tonic-gate fr = to - id;
105*0Sstevel@tonic-gate num_lines = endy - fr;
106*0Sstevel@tonic-gate dir = 1;
107*0Sstevel@tonic-gate } else {
108*0Sstevel@tonic-gate /* can't insert more lines than are in the region */
109*0Sstevel@tonic-gate if ((num_lines = endy - win->_cury) < id)
110*0Sstevel@tonic-gate id = num_lines;
111*0Sstevel@tonic-gate
112*0Sstevel@tonic-gate to = endy - 1;
113*0Sstevel@tonic-gate fr = to - id;
114*0Sstevel@tonic-gate num_lines = fr - (win->_cury - 1);
115*0Sstevel@tonic-gate dir = -1;
116*0Sstevel@tonic-gate }
117*0Sstevel@tonic-gate
118*0Sstevel@tonic-gate /*
119*0Sstevel@tonic-gate * If this window has no parents or children, then we can manipulate
120*0Sstevel@tonic-gate * pointers to simulate insert/delete line. Otherwise,
121*0Sstevel@tonic-gate * to propogate the changes to parents and siblings
122*0Sstevel@tonic-gate * we have to memcpy the text around.
123*0Sstevel@tonic-gate *
124*0Sstevel@tonic-gate * Set quick to tell us which we have to do.
125*0Sstevel@tonic-gate */
126*0Sstevel@tonic-gate quick = ((win->_ndescs <= 0) && (win->_parent == NULL));
127*0Sstevel@tonic-gate
128*0Sstevel@tonic-gate begch = win->_firstch;
129*0Sstevel@tonic-gate endch = win->_lastch;
130*0Sstevel@tonic-gate endx = win->_maxx;
131*0Sstevel@tonic-gate
132*0Sstevel@tonic-gate for (; num_lines > 0; num_lines--, to += dir, fr += dir) {
133*0Sstevel@tonic-gate /* can be done quickly */
134*0Sstevel@tonic-gate if (quick) {
135*0Sstevel@tonic-gate sw = win->_y[to];
136*0Sstevel@tonic-gate win->_y[to] = win->_y[fr];
137*0Sstevel@tonic-gate win->_y[fr] = sw;
138*0Sstevel@tonic-gate if ((win == curscr) && _MARKS != NULL) {
139*0Sstevel@tonic-gate mk = _MARKS[to];
140*0Sstevel@tonic-gate _MARKS[to] = _MARKS[fr];
141*0Sstevel@tonic-gate _MARKS[fr] = mk;
142*0Sstevel@tonic-gate
143*0Sstevel@tonic-gate /* for color terminal do the same for */
144*0Sstevel@tonic-gate /* color marks */
145*0Sstevel@tonic-gate
146*0Sstevel@tonic-gate if (_COLOR_MARKS != NULL) {
147*0Sstevel@tonic-gate mk = _COLOR_MARKS[to];
148*0Sstevel@tonic-gate _COLOR_MARKS[to] = _COLOR_MARKS[fr];
149*0Sstevel@tonic-gate _COLOR_MARKS[fr] = mk;
150*0Sstevel@tonic-gate }
151*0Sstevel@tonic-gate }
152*0Sstevel@tonic-gate } else
153*0Sstevel@tonic-gate /* slow update */
154*0Sstevel@tonic-gate (void) memcpy((char *) win->_y[to], (char *)
155*0Sstevel@tonic-gate win->_y[fr], (endx * sizeof (chtype)));
156*0Sstevel@tonic-gate
157*0Sstevel@tonic-gate
158*0Sstevel@tonic-gate /*
159*0Sstevel@tonic-gate * If this is curscr, the firstch[] and lastch[]
160*0Sstevel@tonic-gate * arrays contain blank information.
161*0Sstevel@tonic-gate */
162*0Sstevel@tonic-gate
163*0Sstevel@tonic-gate if (win == curscr) {
164*0Sstevel@tonic-gate begch[to] = begch[fr];
165*0Sstevel@tonic-gate endch[to] = endch[fr];
166*0Sstevel@tonic-gate _CURHASH[to] = _CURHASH[fr];
167*0Sstevel@tonic-gate } else {
168*0Sstevel@tonic-gate /* regular window, update the change structure */
169*0Sstevel@tonic-gate begch[to] = 0;
170*0Sstevel@tonic-gate endch[to] = endx - 1;
171*0Sstevel@tonic-gate }
172*0Sstevel@tonic-gate }
173*0Sstevel@tonic-gate
174*0Sstevel@tonic-gate /* clear the insert/delete lines */
175*0Sstevel@tonic-gate if (id < 0)
176*0Sstevel@tonic-gate num_lines = endy - to;
177*0Sstevel@tonic-gate else
178*0Sstevel@tonic-gate num_lines = to - (win->_cury - 1);
179*0Sstevel@tonic-gate
180*0Sstevel@tonic-gate if (num_lines > 0) { /* Is this if needed ? */
181*0Sstevel@tonic-gate savimmed = win->_immed;
182*0Sstevel@tonic-gate savesync = win->_sync;
183*0Sstevel@tonic-gate win->_immed = win->_sync = FALSE;
184*0Sstevel@tonic-gate x = win->_curx;
185*0Sstevel@tonic-gate y = win->_cury;
186*0Sstevel@tonic-gate
187*0Sstevel@tonic-gate win->_curx = 0;
188*0Sstevel@tonic-gate for (; num_lines > 0; --num_lines, to += dir) {
189*0Sstevel@tonic-gate /* LINTED */
190*0Sstevel@tonic-gate win->_cury = (short) to;
191*0Sstevel@tonic-gate (void) wclrtoeol(win);
192*0Sstevel@tonic-gate }
193*0Sstevel@tonic-gate
194*0Sstevel@tonic-gate win->_curx = x;
195*0Sstevel@tonic-gate win->_cury = y;
196*0Sstevel@tonic-gate win->_immed = savimmed;
197*0Sstevel@tonic-gate win->_sync = savesync;
198*0Sstevel@tonic-gate }
199*0Sstevel@tonic-gate win->_flags |= (_WINCHANGED|_WINSDEL);
200*0Sstevel@tonic-gate
201*0Sstevel@tonic-gate #ifdef _VR3_COMPAT_CODE
202*0Sstevel@tonic-gate if (update_ptr) {
203*0Sstevel@tonic-gate _y16update = update_ptr;
204*0Sstevel@tonic-gate (*_y16update)(win, endy - y, endx, y, 0);
205*0Sstevel@tonic-gate }
206*0Sstevel@tonic-gate #endif /* _VR3_COMPAT_CODE */
207*0Sstevel@tonic-gate
208*0Sstevel@tonic-gate if (win->_sync)
209*0Sstevel@tonic-gate wsyncup(win);
210*0Sstevel@tonic-gate
211*0Sstevel@tonic-gate return ((win != curscr && savimmed) ? wrefresh(win) : OK);
212*0Sstevel@tonic-gate }
213