Commit | Line | Data |
---|---|---|
0b8d556f | 1 | #ifndef lint |
20029082 | 2 | static char sccsid[] = "@(#)wwsize.c 3.4 %G%"; |
0b8d556f EW |
3 | #endif |
4 | ||
60de5df9 EW |
5 | /* |
6 | * Copyright (c) 1983 Regents of the University of California, | |
7 | * All rights reserved. Redistribution permitted subject to | |
8 | * the terms of the Berkeley Software License Agreement. | |
9 | */ | |
10 | ||
0b8d556f EW |
11 | #include "ww.h" |
12 | ||
13 | /* | |
14 | * Resize a window. Should be unattached. | |
15 | */ | |
16 | wwsize(w, nrow, ncol) | |
17 | register struct ww *w; | |
18 | { | |
19 | register i, j; | |
20 | int nline; | |
21 | union ww_char **buf = 0; | |
22 | char **win = 0; | |
23 | short *nvis = 0; | |
24 | char **fmap = 0; | |
25 | char m; | |
26 | ||
0b8d556f EW |
27 | /* |
28 | * First allocate new buffers. | |
29 | */ | |
30 | win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
31 | if (win == 0) | |
32 | goto bad; | |
33 | if (w->ww_fmap != 0) { | |
34 | fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char)); | |
35 | if (fmap == 0) | |
36 | goto bad; | |
37 | } | |
38 | if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) { | |
39 | nline = MAX(w->ww_b.nr, nrow); | |
40 | buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l, | |
41 | nline, ncol, sizeof (union ww_char)); | |
42 | if (buf == 0) | |
43 | goto bad; | |
44 | } | |
45 | nvis = (short *)malloc((unsigned) nrow * sizeof (short)); | |
46 | if (nvis == 0) { | |
47 | wwerrno = WWE_NOMEM; | |
48 | goto bad; | |
49 | } | |
50 | nvis -= w->ww_w.t; | |
51 | /* | |
52 | * Copy text buffer. | |
53 | */ | |
54 | if (buf != 0) { | |
55 | int b, r; | |
56 | ||
57 | b = w->ww_b.t + nline; | |
58 | r = w->ww_b.l + ncol; | |
59 | if (ncol < w->ww_b.nc) | |
60 | for (i = w->ww_b.t; i < w->ww_b.b; i++) | |
61 | for (j = w->ww_b.l; j < r; j++) | |
62 | buf[i][j] = w->ww_buf[i][j]; | |
63 | else | |
64 | for (i = w->ww_b.t; i < w->ww_b.b; i++) { | |
65 | for (j = w->ww_b.l; j < w->ww_b.r; j++) | |
66 | buf[i][j] = w->ww_buf[i][j]; | |
67 | for (; j < r; j++) | |
68 | buf[i][j].c_w = ' '; | |
69 | } | |
70 | for (; i < b; i++) | |
71 | for (j = w->ww_b.l; j < r; j++) | |
72 | buf[i][j].c_w = ' '; | |
73 | } | |
74 | /* | |
75 | * Now free the old stuff. | |
76 | */ | |
77 | wwfree((char **)w->ww_win, w->ww_w.t); | |
78 | w->ww_win = win; | |
79 | if (buf != 0) { | |
80 | wwfree((char **)w->ww_buf, w->ww_b.t); | |
81 | w->ww_buf = buf; | |
82 | } | |
83 | if (w->ww_fmap != 0) { | |
84 | wwfree((char **)w->ww_fmap, w->ww_w.t); | |
85 | w->ww_fmap = fmap; | |
86 | } | |
87 | free((char *)(w->ww_nvis + w->ww_w.t)); | |
88 | w->ww_nvis = nvis; | |
89 | /* | |
90 | * Set new sizes. | |
91 | */ | |
92 | /* window */ | |
93 | w->ww_w.b = w->ww_w.t + nrow; | |
94 | w->ww_w.r = w->ww_w.l + ncol; | |
95 | w->ww_w.nr = nrow; | |
96 | w->ww_w.nc = ncol; | |
97 | /* text buffer */ | |
98 | if (buf != 0) { | |
99 | w->ww_b.b = w->ww_b.t + nline; | |
100 | w->ww_b.r = w->ww_b.l + ncol; | |
101 | w->ww_b.nr = nline; | |
102 | w->ww_b.nc = ncol; | |
103 | } | |
104 | /* scroll */ | |
105 | if ((i = w->ww_b.b - w->ww_w.b) < 0 || | |
106 | (i = w->ww_cur.r - w->ww_w.b + 1) > 0) { | |
107 | w->ww_buf += i; | |
108 | w->ww_b.t -= i; | |
109 | w->ww_b.b -= i; | |
110 | w->ww_cur.r -= i; | |
111 | } | |
112 | /* interior */ | |
113 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); | |
114 | w->ww_i.r = MIN(w->ww_w.r, wwncol); | |
115 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; | |
116 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; | |
117 | /* | |
118 | * Initialize new buffers. | |
119 | */ | |
120 | /* window */ | |
121 | m = 0; | |
122 | if (w->ww_oflags & WWO_GLASS) | |
123 | m |= WWM_GLS; | |
124 | if (w->ww_oflags & WWO_REVERSE) | |
125 | m |= WWM_REV; | |
126 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
127 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
128 | w->ww_win[i][j] = m; | |
129 | /* frame map */ | |
130 | if (fmap != 0) | |
131 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
132 | for (j = w->ww_w.l; j < w->ww_w.r; j++) | |
133 | w->ww_fmap[i][j] = 0; | |
134 | /* visibility */ | |
135 | j = m ? 0 : w->ww_w.nc; | |
136 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
137 | w->ww_nvis[i] = j; | |
138 | /* | |
139 | * Put cursor back. | |
140 | */ | |
141 | if (w->ww_hascursor) { | |
142 | w->ww_hascursor = 0; | |
143 | wwcursor(w, 1); | |
144 | } | |
145 | /* | |
146 | * Fool with pty. | |
147 | */ | |
148 | if (w->ww_ispty && w->ww_pty >= 0) { | |
149 | struct winsize winsize; | |
150 | ||
151 | winsize.ws_row = nrow; | |
152 | winsize.ws_col = ncol; | |
153 | winsize.ws_xpixel = winsize.ws_ypixel = 0; | |
20029082 | 154 | (void) ioctl(w->ww_pty, TIOCSWINSZ, (char *)&winsize); |
0b8d556f EW |
155 | } |
156 | return 0; | |
157 | bad: | |
158 | if (win != 0) | |
159 | wwfree(win, w->ww_w.t); | |
160 | if (fmap != 0) | |
161 | wwfree(fmap, w->ww_w.t); | |
162 | if (buf != 0) | |
163 | wwfree((char **)buf, w->ww_b.t); | |
164 | if (nvis != 0) | |
165 | free((char *)(nvis + w->ww_w.t)); | |
166 | return -1; | |
167 | } |