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60de5df9 | 1 | /* |
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2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
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6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
60de5df9 EW |
16 | */ |
17 | ||
46e9ea25 | 18 | #ifndef lint |
5e8b0e60 | 19 | static char sccsid[] = "@(#)wwsize.c 3.6 (Berkeley) %G%"; |
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20 | #endif /* not lint */ |
21 | ||
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22 | #include "ww.h" |
23 | ||
24 | /* | |
25 | * Resize a window. Should be unattached. | |
26 | */ | |
27 | wwsize(w, nrow, ncol) | |
28 | register struct ww *w; | |
29 | { | |
30 | register i, j; | |
31 | int nline; | |
32 | union ww_char **buf = 0; | |
33 | char **win = 0; | |
34 | short *nvis = 0; | |
35 | char **fmap = 0; | |
36 | char m; | |
37 | ||
0b8d556f EW |
38 | /* |
39 | * First allocate new buffers. | |
40 | */ | |
41 | win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
42 | if (win == 0) | |
43 | goto bad; | |
44 | if (w->ww_fmap != 0) { | |
45 | fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
46 | if (fmap == 0) | |
47 | goto bad; | |
48 | } | |
49 | if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { | |
50 | nline = MAX(w->ww_b.nr, nrow); | |
51 | buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, | |
52 | nline, ncol, sizeof (union ww_char)); | |
53 | if (buf == 0) | |
54 | goto bad; | |
55 | } | |
56 | nvis = (short *)malloc((unsigned) nrow * sizeof (short)); | |
57 | if (nvis == 0) { | |
58 | wwerrno = WWE_NOMEM; | |
59 | goto bad; | |
60 | } | |
61 | nvis -= w->ww_w.t; | |
62 | /* | |
63 | * Copy text buffer. | |
64 | */ | |
65 | if (buf != 0) { | |
66 | int b, r; | |
67 | ||
68 | b = w->ww_b.t + nline; | |
69 | r = w->ww_b.l + ncol; | |
70 | if (ncol < w->ww_b.nc) | |
71 | for (i = w->ww_b.t; i < w->ww_b.b; i++) | |
72 | for (j = w->ww_b.l; j < r; j++) | |
73 | buf[i][j] = w->ww_buf[i][j]; | |
74 | else | |
75 | for (i = w->ww_b.t; i < w->ww_b.b; i++) { | |
76 | for (j = w->ww_b.l; j < w->ww_b.r; j++) | |
77 | buf[i][j] = w->ww_buf[i][j]; | |
78 | for (; j < r; j++) | |
79 | buf[i][j].c_w = ' '; | |
80 | } | |
81 | for (; i < b; i++) | |
82 | for (j = w->ww_b.l; j < r; j++) | |
83 | buf[i][j].c_w = ' '; | |
84 | } | |
85 | /* | |
86 | * Now free the old stuff. | |
87 | */ | |
88 | wwfree((char **)w->ww_win, w->ww_w.t); | |
89 | w->ww_win = win; | |
90 | if (buf != 0) { | |
91 | wwfree((char **)w->ww_buf, w->ww_b.t); | |
92 | w->ww_buf = buf; | |
93 | } | |
94 | if (w->ww_fmap != 0) { | |
95 | wwfree((char **)w->ww_fmap, w->ww_w.t); | |
96 | w->ww_fmap = fmap; | |
97 | } | |
98 | free((char *)(w->ww_nvis + w->ww_w.t)); | |
99 | w->ww_nvis = nvis; | |
100 | /* | |
101 | * Set new sizes. | |
102 | */ | |
103 | /* window */ | |
104 | w->ww_w.b = w->ww_w.t + nrow; | |
105 | w->ww_w.r = w->ww_w.l + ncol; | |
106 | w->ww_w.nr = nrow; | |
107 | w->ww_w.nc = ncol; | |
108 | /* text buffer */ | |
109 | if (buf != 0) { | |
110 | w->ww_b.b = w->ww_b.t + nline; | |
111 | w->ww_b.r = w->ww_b.l + ncol; | |
112 | w->ww_b.nr = nline; | |
113 | w->ww_b.nc = ncol; | |
114 | } | |
115 | /* scroll */ | |
116 | if ((i = w->ww_b.b - w->ww_w.b) < 0 || | |
117 | (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { | |
118 | w->ww_buf += i; | |
119 | w->ww_b.t -= i; | |
120 | w->ww_b.b -= i; | |
121 | w->ww_cur.r -= i; | |
122 | } | |
123 | /* interior */ | |
124 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); | |
125 | w->ww_i.r = MIN(w->ww_w.r, wwncol); | |
126 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; | |
127 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; | |
128 | /* | |
129 | * Initialize new buffers. | |
130 | */ | |
131 | /* window */ | |
132 | m = 0; | |
133 | if (w->ww_oflags & WWO_GLASS) | |
134 | m |= WWM_GLS; | |
135 | if (w->ww_oflags & WWO_REVERSE) | |
136 | m |= WWM_REV; | |
137 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
138 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
139 | w->ww_win[i][j] = m; | |
140 | /* frame map */ | |
141 | if (fmap != 0) | |
142 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
143 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
144 | w->ww_fmap[i][j] = 0; | |
145 | /* visibility */ | |
146 | j = m ? 0 : w->ww_w.nc; | |
147 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
148 | w->ww_nvis[i] = j; | |
149 | /* | |
150 | * Put cursor back. | |
151 | */ | |
152 | if (w->ww_hascursor) { | |
153 | w->ww_hascursor = 0; | |
154 | wwcursor(w, 1); | |
155 | } | |
156 | /* | |
157 | * Fool with pty. | |
158 | */ | |
159 | if (w->ww_ispty && w->ww_pty >= 0) { | |
160 | struct winsize winsize; | |
161 | ||
162 | winsize.ws_row = nrow; | |
163 | winsize.ws_col = ncol; | |
164 | winsize.ws_xpixel = winsize.ws_ypixel = 0; | |
20029082 | 165 | (void) ioctl(w->ww_pty, TIOCSWINSZ, (char *)&winsize); |
0b8d556f EW |
166 | } |
167 | return 0; | |
168 | bad: | |
169 | if (win != 0) | |
170 | wwfree(win, w->ww_w.t); | |
171 | if (fmap != 0) | |
172 | wwfree(fmap, w->ww_w.t); | |
173 | if (buf != 0) | |
174 | wwfree((char **)buf, w->ww_b.t); | |
175 | if (nvis != 0) | |
176 | free((char *)(nvis + w->ww_w.t)); | |
177 | return -1; | |
178 | } |