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60de5df9 | 1 | /* |
46e9ea25 KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
3dd3a9e5 KB |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Edward Wang at The University of California, Berkeley. | |
7 | * | |
af359dea C |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
60de5df9 EW |
35 | */ |
36 | ||
46e9ea25 | 37 | #ifndef lint |
af359dea | 38 | static char sccsid[] = "@(#)wwsize.c 3.10 (Berkeley) 8/12/90"; |
46e9ea25 KB |
39 | #endif /* not lint */ |
40 | ||
0b8d556f EW |
41 | #include "ww.h" |
42 | ||
43 | /* | |
44 | * Resize a window. Should be unattached. | |
45 | */ | |
46 | wwsize(w, nrow, ncol) | |
47 | register struct ww *w; | |
48 | { | |
49 | register i, j; | |
50 | int nline; | |
51 | union ww_char **buf = 0; | |
52 | char **win = 0; | |
53 | short *nvis = 0; | |
54 | char **fmap = 0; | |
55 | char m; | |
56 | ||
0b8d556f EW |
57 | /* |
58 | * First allocate new buffers. | |
59 | */ | |
60 | win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
61 | if (win == 0) | |
62 | goto bad; | |
63 | if (w->ww_fmap != 0) { | |
64 | fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
65 | if (fmap == 0) | |
66 | goto bad; | |
67 | } | |
68 | if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { | |
69 | nline = MAX(w->ww_b.nr, nrow); | |
70 | buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, | |
71 | nline, ncol, sizeof (union ww_char)); | |
72 | if (buf == 0) | |
73 | goto bad; | |
74 | } | |
75 | nvis = (short *)malloc((unsigned) nrow * sizeof (short)); | |
76 | if (nvis == 0) { | |
77 | wwerrno = WWE_NOMEM; | |
78 | goto bad; | |
79 | } | |
80 | nvis -= w->ww_w.t; | |
81 | /* | |
82 | * Copy text buffer. | |
83 | */ | |
84 | if (buf != 0) { | |
85 | int b, r; | |
86 | ||
87 | b = w->ww_b.t + nline; | |
88 | r = w->ww_b.l + ncol; | |
89 | if (ncol < w->ww_b.nc) | |
90 | for (i = w->ww_b.t; i < w->ww_b.b; i++) | |
91 | for (j = w->ww_b.l; j < r; j++) | |
92 | buf[i][j] = w->ww_buf[i][j]; | |
93 | else | |
94 | for (i = w->ww_b.t; i < w->ww_b.b; i++) { | |
95 | for (j = w->ww_b.l; j < w->ww_b.r; j++) | |
96 | buf[i][j] = w->ww_buf[i][j]; | |
97 | for (; j < r; j++) | |
98 | buf[i][j].c_w = ' '; | |
99 | } | |
100 | for (; i < b; i++) | |
101 | for (j = w->ww_b.l; j < r; j++) | |
102 | buf[i][j].c_w = ' '; | |
103 | } | |
104 | /* | |
105 | * Now free the old stuff. | |
106 | */ | |
107 | wwfree((char **)w->ww_win, w->ww_w.t); | |
108 | w->ww_win = win; | |
109 | if (buf != 0) { | |
110 | wwfree((char **)w->ww_buf, w->ww_b.t); | |
111 | w->ww_buf = buf; | |
112 | } | |
113 | if (w->ww_fmap != 0) { | |
114 | wwfree((char **)w->ww_fmap, w->ww_w.t); | |
115 | w->ww_fmap = fmap; | |
116 | } | |
117 | free((char *)(w->ww_nvis + w->ww_w.t)); | |
118 | w->ww_nvis = nvis; | |
119 | /* | |
120 | * Set new sizes. | |
121 | */ | |
122 | /* window */ | |
123 | w->ww_w.b = w->ww_w.t + nrow; | |
124 | w->ww_w.r = w->ww_w.l + ncol; | |
125 | w->ww_w.nr = nrow; | |
126 | w->ww_w.nc = ncol; | |
127 | /* text buffer */ | |
128 | if (buf != 0) { | |
129 | w->ww_b.b = w->ww_b.t + nline; | |
130 | w->ww_b.r = w->ww_b.l + ncol; | |
131 | w->ww_b.nr = nline; | |
132 | w->ww_b.nc = ncol; | |
133 | } | |
134 | /* scroll */ | |
135 | if ((i = w->ww_b.b - w->ww_w.b) < 0 || | |
136 | (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { | |
137 | w->ww_buf += i; | |
138 | w->ww_b.t -= i; | |
139 | w->ww_b.b -= i; | |
140 | w->ww_cur.r -= i; | |
141 | } | |
142 | /* interior */ | |
143 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); | |
144 | w->ww_i.r = MIN(w->ww_w.r, wwncol); | |
145 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; | |
146 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; | |
147 | /* | |
148 | * Initialize new buffers. | |
149 | */ | |
150 | /* window */ | |
151 | m = 0; | |
152 | if (w->ww_oflags & WWO_GLASS) | |
153 | m |= WWM_GLS; | |
154 | if (w->ww_oflags & WWO_REVERSE) | |
155 | m |= WWM_REV; | |
156 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
157 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
158 | w->ww_win[i][j] = m; | |
159 | /* frame map */ | |
160 | if (fmap != 0) | |
161 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
162 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
163 | w->ww_fmap[i][j] = 0; | |
164 | /* visibility */ | |
165 | j = m ? 0 : w->ww_w.nc; | |
166 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
167 | w->ww_nvis[i] = j; | |
168 | /* | |
169 | * Put cursor back. | |
170 | */ | |
171 | if (w->ww_hascursor) { | |
172 | w->ww_hascursor = 0; | |
173 | wwcursor(w, 1); | |
174 | } | |
175 | /* | |
176 | * Fool with pty. | |
177 | */ | |
9de86788 EW |
178 | if (w->ww_ispty && w->ww_pty >= 0) |
179 | (void) wwsetttysize(w->ww_pty, nrow, ncol); | |
0b8d556f EW |
180 | return 0; |
181 | bad: | |
182 | if (win != 0) | |
183 | wwfree(win, w->ww_w.t); | |
184 | if (fmap != 0) | |
185 | wwfree(fmap, w->ww_w.t); | |
186 | if (buf != 0) | |
187 | wwfree((char **)buf, w->ww_b.t); | |
188 | if (nvis != 0) | |
189 | free((char *)(nvis + w->ww_w.t)); | |
190 | return -1; | |
191 | } |