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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 | * | |
87f529ec | 8 | * %sccs.include.redist.c% |
60de5df9 EW |
9 | */ |
10 | ||
46e9ea25 | 11 | #ifndef lint |
9de86788 | 12 | static char sccsid[] = "@(#)wwsize.c 3.10 (Berkeley) %G%"; |
46e9ea25 KB |
13 | #endif /* not lint */ |
14 | ||
0b8d556f EW |
15 | #include "ww.h" |
16 | ||
17 | /* | |
18 | * Resize a window. Should be unattached. | |
19 | */ | |
20 | wwsize(w, nrow, ncol) | |
21 | register struct ww *w; | |
22 | { | |
23 | register i, j; | |
24 | int nline; | |
25 | union ww_char **buf = 0; | |
26 | char **win = 0; | |
27 | short *nvis = 0; | |
28 | char **fmap = 0; | |
29 | char m; | |
30 | ||
0b8d556f EW |
31 | /* |
32 | * First allocate new buffers. | |
33 | */ | |
34 | win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
35 | if (win == 0) | |
36 | goto bad; | |
37 | if (w->ww_fmap != 0) { | |
38 | fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
39 | if (fmap == 0) | |
40 | goto bad; | |
41 | } | |
42 | if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { | |
43 | nline = MAX(w->ww_b.nr, nrow); | |
44 | buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, | |
45 | nline, ncol, sizeof (union ww_char)); | |
46 | if (buf == 0) | |
47 | goto bad; | |
48 | } | |
49 | nvis = (short *)malloc((unsigned) nrow * sizeof (short)); | |
50 | if (nvis == 0) { | |
51 | wwerrno = WWE_NOMEM; | |
52 | goto bad; | |
53 | } | |
54 | nvis -= w->ww_w.t; | |
55 | /* | |
56 | * Copy text buffer. | |
57 | */ | |
58 | if (buf != 0) { | |
59 | int b, r; | |
60 | ||
61 | b = w->ww_b.t + nline; | |
62 | r = w->ww_b.l + ncol; | |
63 | if (ncol < w->ww_b.nc) | |
64 | for (i = w->ww_b.t; i < w->ww_b.b; i++) | |
65 | for (j = w->ww_b.l; j < r; j++) | |
66 | buf[i][j] = w->ww_buf[i][j]; | |
67 | else | |
68 | for (i = w->ww_b.t; i < w->ww_b.b; i++) { | |
69 | for (j = w->ww_b.l; j < w->ww_b.r; j++) | |
70 | buf[i][j] = w->ww_buf[i][j]; | |
71 | for (; j < r; j++) | |
72 | buf[i][j].c_w = ' '; | |
73 | } | |
74 | for (; i < b; i++) | |
75 | for (j = w->ww_b.l; j < r; j++) | |
76 | buf[i][j].c_w = ' '; | |
77 | } | |
78 | /* | |
79 | * Now free the old stuff. | |
80 | */ | |
81 | wwfree((char **)w->ww_win, w->ww_w.t); | |
82 | w->ww_win = win; | |
83 | if (buf != 0) { | |
84 | wwfree((char **)w->ww_buf, w->ww_b.t); | |
85 | w->ww_buf = buf; | |
86 | } | |
87 | if (w->ww_fmap != 0) { | |
88 | wwfree((char **)w->ww_fmap, w->ww_w.t); | |
89 | w->ww_fmap = fmap; | |
90 | } | |
91 | free((char *)(w->ww_nvis + w->ww_w.t)); | |
92 | w->ww_nvis = nvis; | |
93 | /* | |
94 | * Set new sizes. | |
95 | */ | |
96 | /* window */ | |
97 | w->ww_w.b = w->ww_w.t + nrow; | |
98 | w->ww_w.r = w->ww_w.l + ncol; | |
99 | w->ww_w.nr = nrow; | |
100 | w->ww_w.nc = ncol; | |
101 | /* text buffer */ | |
102 | if (buf != 0) { | |
103 | w->ww_b.b = w->ww_b.t + nline; | |
104 | w->ww_b.r = w->ww_b.l + ncol; | |
105 | w->ww_b.nr = nline; | |
106 | w->ww_b.nc = ncol; | |
107 | } | |
108 | /* scroll */ | |
109 | if ((i = w->ww_b.b - w->ww_w.b) < 0 || | |
110 | (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { | |
111 | w->ww_buf += i; | |
112 | w->ww_b.t -= i; | |
113 | w->ww_b.b -= i; | |
114 | w->ww_cur.r -= i; | |
115 | } | |
116 | /* interior */ | |
117 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); | |
118 | w->ww_i.r = MIN(w->ww_w.r, wwncol); | |
119 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; | |
120 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; | |
121 | /* | |
122 | * Initialize new buffers. | |
123 | */ | |
124 | /* window */ | |
125 | m = 0; | |
126 | if (w->ww_oflags & WWO_GLASS) | |
127 | m |= WWM_GLS; | |
128 | if (w->ww_oflags & WWO_REVERSE) | |
129 | m |= WWM_REV; | |
130 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
131 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
132 | w->ww_win[i][j] = m; | |
133 | /* frame map */ | |
134 | if (fmap != 0) | |
135 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
136 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
137 | w->ww_fmap[i][j] = 0; | |
138 | /* visibility */ | |
139 | j = m ? 0 : w->ww_w.nc; | |
140 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
141 | w->ww_nvis[i] = j; | |
142 | /* | |
143 | * Put cursor back. | |
144 | */ | |
145 | if (w->ww_hascursor) { | |
146 | w->ww_hascursor = 0; | |
147 | wwcursor(w, 1); | |
148 | } | |
149 | /* | |
150 | * Fool with pty. | |
151 | */ | |
9de86788 EW |
152 | if (w->ww_ispty && w->ww_pty >= 0) |
153 | (void) wwsetttysize(w->ww_pty, nrow, ncol); | |
0b8d556f EW |
154 | return 0; |
155 | bad: | |
156 | if (win != 0) | |
157 | wwfree(win, w->ww_w.t); | |
158 | if (fmap != 0) | |
159 | wwfree(fmap, w->ww_w.t); | |
160 | if (buf != 0) | |
161 | wwfree((char **)buf, w->ww_b.t); | |
162 | if (nvis != 0) | |
163 | free((char *)(nvis + w->ww_w.t)); | |
164 | return -1; | |
165 | } |