1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include <stdlib.h>
#include "curses_inc.h"
/*
* Pad refresh. These routines are provided for upward compatibility
* with the 'pad' structure of Sys V.2. Since windows now can be of
* arbitrary size and derived windows can be moved within their
* parent windows effortlessly, a separate notion of 'pad' as
* a larger-than-screen window is no longer necessary.
*
* pminy, pminx: the area (pminy, pminx, maxy, maxx) of pad is refreshed
* sminy, sminx, smaxy, smaxx: the screen area to be affected.
*/
int
prefresh(WINDOW *pad, int pminy, int pminx, int sminy,
int sminx, int smaxy, int smaxx)
{
return (_prefresh(wrefresh, pad, pminy, pminx, sminy,
sminx, smaxy, smaxx));
}
int
_prefresh(int (*func)(WINDOW *), WINDOW *pad, int pminy, int pminx,
int sminy, int sminx, int smaxy, int smaxx)
{
/*
* If pad->_padwin doesn't exist(meaning that this is
* the first call to p*refresh) create it as a derived window
*/
if (!pad->_padwin) {
if ((pad->_padwin = derwin(pad, pad->_maxy, pad->_maxx,
0, 0)) == NULL) {
goto bad;
}
/* else pad->_padwin->_use_idl = TRUE; */
/*
* The following makes parent window to run in fast mode
* by creating an illusion that it has no derived windows
*/
pad->_ndescs--;
}
if (_padjust(pad, pminy, pminx, sminy, sminx, smaxy, smaxx) == ERR)
bad:
return (ERR);
(*func)(pad->_padwin);
return (OK);
}
int
_padjust(WINDOW *pad, int pminy, int pminx, int sminy,
int sminx, int smaxy, int smaxx)
{
short prows, pcols, y;
WINDOW *padwin = pad->_padwin;
chtype **p_y, **o_y;
/* make sure the area requested to be updated is on the pad */
if ((pminy >= pad->_maxy) || (pminx >= pad->_maxx))
return (ERR);
/* determine the area of the pad to be updated */
if (pminy < 0)
pminy = 0;
if (pminx < 0)
pminx = 0;
/* determine the screen area affected */
if (sminy < 0)
sminy = 0;
if (sminx < 0)
sminx = 0;
if (smaxy < sminy)
smaxy = LINES - 1;
if (smaxx < sminx)
smaxx = COLS - 1;
/*
* Modify the area of the pad to be updated taking into
* consideration screen parameters.
*/
if ((prows = (smaxy - sminy) + 1) > (y = pad->_maxy - pminy))
prows = y;
if ((pcols = (smaxx - sminx) + 1) > (y = pad->_maxx - pminx))
pcols = y;
if (((padwin->_cury = pad->_cury - pminy) < 0) ||
(padwin->_cury >= prows))
padwin->_cury = 0;
if (((padwin->_curx = pad->_curx - pminx) < 0) ||
(padwin->_curx >= pcols))
padwin->_curx = 0;
padwin->_leave = pad->_leave;
padwin->_use_idl = pad->_use_idl;
/*
* If padwin refers to the same derwin, return. Otherwise
* update the coordinates and malloc'ed areas of the padwin
*/
if ((padwin->_begy == sminy) && (padwin->_begx == sminx) &&
(padwin->_maxy == prows) && (padwin->_maxx == pcols) &&
(padwin->_y[0] == (pad->_y[pminy] + pminx)) &&
(!(pad->_flags & _WINSDEL))) {
goto good;
}
/* update the coordinates of the pad */
padwin->_maxy = prows;
padwin->_maxx = pcols;
/* LINTED */
padwin->_begy = (short)sminy;
/* LINTED */
padwin->_begx = (short)sminx;
/* LINTED */
padwin->_pary = (short)pminy;
/* LINTED */
padwin->_parx = (short)pminx;
/* update the malloc'ed areas */
p_y = padwin->_y;
o_y = pad->_y;
for (y = 0; y < prows; y++, pminy++)
p_y[y] = o_y[pminy] + pminx;
(void) wtouchln(padwin, 0, prows, TRUE);
good:
return (OK);
}
|
