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bb05dfb5 | 1 | /* |
46e9ea25 KB |
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 | |
5e8b0e60 KB |
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. | |
46e9ea25 | 16 | * |
6a1ef78a | 17 | * @(#)ww.h 3.50 (Berkeley) %G% |
bb05dfb5 | 18 | */ |
0edb449f EW |
19 | |
20 | #include <sgtty.h> | |
b1189050 | 21 | #include <setjmp.h> |
bb05dfb5 | 22 | |
8fa6d94c | 23 | #define NWW 30 /* maximum number of windows */ |
0edb449f | 24 | |
b47565d0 | 25 | /* a rectangle */ |
c417b691 | 26 | struct ww_dim { |
bb05dfb5 EW |
27 | int nr; /* number of rows */ |
28 | int nc; /* number of columns */ | |
29 | int t, b; /* top, bottom */ | |
30 | int l, r; /* left, right */ | |
31 | }; | |
32 | ||
b47565d0 | 33 | /* a coordinate */ |
bb05dfb5 EW |
34 | struct ww_pos { |
35 | int r; /* row */ | |
36 | int c; /* column */ | |
c417b691 EW |
37 | }; |
38 | ||
b47565d0 | 39 | /* the window structure */ |
0edb449f | 40 | struct ww { |
b27a9cfb EW |
41 | /* general flags and states */ |
42 | char ww_state; /* state of window */ | |
43 | char ww_oflags; /* wwopen flags */ | |
44 | ||
0e64e422 | 45 | /* information for overlap */ |
bb05dfb5 EW |
46 | struct ww *ww_forw; /* doubly linked list, for overlapping info */ |
47 | struct ww *ww_back; | |
0e64e422 | 48 | char ww_index; /* the window index, for wwindex[] */ |
bb05dfb5 | 49 | char ww_order; /* the overlapping order */ |
f2a77fe1 EW |
50 | |
51 | /* sizes and positions */ | |
52 | struct ww_dim ww_w; /* window size and pos */ | |
53 | struct ww_dim ww_b; /* buffer size and pos */ | |
19f9784c | 54 | struct ww_dim ww_i; /* the part inside the screen */ |
bb05dfb5 | 55 | struct ww_pos ww_cur; /* the cursor position, relative to ww_w */ |
f2a77fe1 EW |
56 | |
57 | /* arrays */ | |
bb05dfb5 EW |
58 | char **ww_win; /* the window */ |
59 | union ww_char **ww_buf; /* the buffer */ | |
2357b64e | 60 | char **ww_fmap; /* map for frame and box windows */ |
bb05dfb5 | 61 | short *ww_nvis; /* how many ww_buf chars are visible per row */ |
f2a77fe1 | 62 | |
0e64e422 EW |
63 | /* information for wwwrite() and company */ |
64 | char ww_wstate; /* state for outputting characters */ | |
65 | char ww_modes; /* current display modes */ | |
66 | char ww_insert; /* insert mode */ | |
67 | char ww_mapnl; /* map \n to \r\n */ | |
68 | char ww_noupdate; /* don't do updates in wwwrite() */ | |
69 | char ww_unctrl; /* expand control characters */ | |
70 | char ww_nointr; /* wwwrite() not interruptable */ | |
71 | char ww_hascursor; /* has fake cursor */ | |
0e64e422 | 72 | |
b1189050 | 73 | /* things for the window process and io */ |
7ecf4dca EW |
74 | char ww_ispty; /* ww_pty is really a pty, not socket pair */ |
75 | char ww_stopped; /* output stopped */ | |
76 | int ww_pty; /* file descriptor of pty or socket pair */ | |
77 | int ww_socket; /* other end of socket pair */ | |
bb05dfb5 | 78 | int ww_pid; /* pid of process, if WWS_HASPROC true */ |
0896e17e | 79 | char ww_ttyname[11]; /* "/dev/ttyp?" */ |
8fa6d94c EW |
80 | char *ww_ob; /* output buffer */ |
81 | char *ww_obe; /* end of ww_ob */ | |
7ecf4dca EW |
82 | char *ww_obp; /* current read position in ww_ob */ |
83 | char *ww_obq; /* current write position in ww_ob */ | |
f176f953 EW |
84 | |
85 | /* things for the user, they really don't belong here */ | |
0e64e422 | 86 | char ww_id; /* the user window id */ |
b27a9cfb EW |
87 | char ww_center; /* center the label */ |
88 | char ww_hasframe; /* frame it */ | |
2422abab | 89 | char ww_keepopen; /* keep it open after the process dies */ |
bb05dfb5 | 90 | char *ww_label; /* the user supplied label */ |
b27a9cfb | 91 | struct ww_dim ww_alt; /* alternate position and size */ |
4711df8b EW |
92 | }; |
93 | ||
b47565d0 | 94 | /* state of a tty */ |
4711df8b | 95 | struct ww_tty { |
0edb449f EW |
96 | struct sgttyb ww_sgttyb; |
97 | struct tchars ww_tchars; | |
98 | struct ltchars ww_ltchars; | |
99 | int ww_lmode; | |
100 | int ww_ldisc; | |
b1189050 | 101 | int ww_fflags; |
0edb449f EW |
102 | }; |
103 | ||
0896e17e EW |
104 | union ww_char { |
105 | short c_w; /* as a word */ | |
106 | struct { | |
3643e306 | 107 | #if defined(vax) || defined(MIPSEL) |
0896e17e EW |
108 | char C_c; /* the character part */ |
109 | char C_m; /* the mode part */ | |
a6fccdf5 EW |
110 | #else |
111 | char C_m; /* the mode part */ | |
112 | char C_c; /* the character part */ | |
113 | #endif | |
0896e17e EW |
114 | } c_un; |
115 | }; | |
116 | #define c_c c_un.C_c | |
117 | #define c_m c_un.C_m | |
118 | ||
6a1ef78a EW |
119 | /* for display update */ |
120 | struct ww_update { | |
121 | int best_gain; | |
122 | int best_col; | |
123 | int gain; | |
124 | }; | |
125 | ||
0896e17e EW |
126 | /* parts of ww_char */ |
127 | #define WWC_CMASK 0x00ff | |
128 | #define WWC_MMASK 0xff00 | |
129 | #define WWC_MSHIFT 8 | |
130 | ||
131 | /* c_m bits */ | |
132 | #define WWM_REV 0x01 /* reverse video */ | |
133 | #define WWM_BLK 0x02 /* blinking */ | |
134 | #define WWM_UL 0x04 /* underlined */ | |
a830e8bb | 135 | #define WWM_GRP 0x08 /* graphics */ |
a6833679 EW |
136 | #define WWM_DIM 0x10 /* half intensity */ |
137 | #define WWM_USR 0x20 /* user specified mode */ | |
138 | #define WWM_GLS 0x40 /* window only, glass, i.e., transparent */ | |
0896e17e EW |
139 | |
140 | /* ww_state values */ | |
141 | #define WWS_INITIAL 0 /* just opened */ | |
b47565d0 | 142 | #define WWS_HASPROC 1 /* has process on pty */ |
0896e17e EW |
143 | #define WWS_DEAD 3 /* child died */ |
144 | ||
2357b64e | 145 | /* flags for ww_fmap */ |
0896e17e EW |
146 | #define WWF_U 0x01 |
147 | #define WWF_R 0x02 | |
148 | #define WWF_D 0x04 | |
149 | #define WWF_L 0x08 | |
150 | #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L) | |
151 | #define WWF_LABEL 0x40 | |
152 | #define WWF_TOP 0x80 | |
153 | ||
2357b64e EW |
154 | /* flags to wwopen() */ |
155 | #define WWO_PTY 0x01 /* want pty */ | |
7ecf4dca EW |
156 | #define WWO_SOCKET 0x02 /* want socket pair */ |
157 | #define WWO_REVERSE 0x04 /* make it all reverse video */ | |
158 | #define WWO_GLASS 0x08 /* make it all glass */ | |
159 | #define WWO_FRAME 0x10 /* this is a frame window */ | |
2357b64e | 160 | |
0896e17e EW |
161 | /* special ww_index value */ |
162 | #define WWX_NOBODY NWW | |
163 | ||
04d70db4 | 164 | /* error codes */ |
03e75950 EW |
165 | #define WWE_NOERR 0 |
166 | #define WWE_SYS 1 /* system error */ | |
167 | #define WWE_NOMEM 2 /* out of memory */ | |
168 | #define WWE_TOOMANY 3 /* too many windows */ | |
169 | #define WWE_NOPTY 4 /* no more ptys */ | |
170 | #define WWE_SIZE 5 /* bad window size */ | |
171 | #define WWE_BADTERM 6 /* bad terminal type */ | |
172 | #define WWE_CANTDO 7 /* dumb terminal */ | |
173 | ||
6a1ef78a | 174 | /* wwtouched[] bits, there used to be more than one */ |
04d70db4 | 175 | #define WWU_TOUCHED 0x01 /* touched */ |
04d70db4 | 176 | |
8fa6d94c | 177 | /* the window structures */ |
bb05dfb5 | 178 | struct ww wwhead; |
0896e17e | 179 | struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */ |
bb05dfb5 | 180 | struct ww wwnobody; |
2b44d852 | 181 | |
8fa6d94c | 182 | /* tty things */ |
0896e17e EW |
183 | struct ww_tty wwoldtty; /* the old (saved) terminal settings */ |
184 | struct ww_tty wwnewtty; /* the new (current) terminal settings */ | |
185 | struct ww_tty wwwintty; /* the terminal settings for windows */ | |
186 | char *wwterm; /* the terminal name */ | |
187 | char wwtermcap[1024]; /* place for the termcap */ | |
bb05dfb5 | 188 | |
8fa6d94c | 189 | /* generally useful variables */ |
bb05dfb5 | 190 | int wwnrow, wwncol; /* the screen size */ |
7d77e730 | 191 | char wwavailmodes; /* actually supported modes */ |
73218728 | 192 | char wwcursormodes; /* the modes for the fake cursor */ |
5e785082 | 193 | char wwwrap; /* terminal has auto wrap around */ |
0896e17e | 194 | int wwdtablesize; /* result of getdtablesize() call */ |
bb05dfb5 | 195 | char **wwsmap; /* the screen map */ |
0896e17e EW |
196 | union ww_char **wwos; /* the old (current) screen */ |
197 | union ww_char **wwns; /* the new (desired) screen */ | |
861cd1ed | 198 | char *wwtouched; /* wwns changed flags */ |
6a1ef78a | 199 | struct ww_update *wwupd; /* for display update */ |
b15b4a3f | 200 | extern int wwbaudmap[]; /* maps stty() baud rate code into number */ |
0896e17e EW |
201 | int wwbaud; /* wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed] */ |
202 | int wwcursorrow, wwcursorcol; /* where we want the cursor to be */ | |
03e75950 | 203 | int wwerrno; /* error number */ |
0edb449f | 204 | |
bb05dfb5 | 205 | /* statistics */ |
b1189050 EW |
206 | int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc; |
207 | int wwnwwr, wwnwwra, wwnwwrc; | |
6a1ef78a EW |
208 | int wwnupdate, wwnupdline, wwnupdmiss; |
209 | int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline; | |
8fa6d94c EW |
210 | int wwnread, wwnreade, wwnreadz, wwnreadc; |
211 | int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp; | |
212 | int wwnselect, wwnselecte, wwnselectz; | |
0edb449f | 213 | |
0896e17e | 214 | /* quicky macros */ |
bb05dfb5 | 215 | #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c)) |
f2a77fe1 | 216 | #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c) |
2357b64e | 217 | #define wwunbox(w) wwunframe(w) |
f2a77fe1 | 218 | #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0) |
86697c44 | 219 | #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0) |
b1189050 | 220 | #define wwupdate() wwupdate1(0, wwnrow); |
2b44d852 | 221 | |
8fa6d94c | 222 | /* things for handling input */ |
b1189050 EW |
223 | int wwrint(); /* interrupt handler */ |
224 | struct ww *wwcurwin; /* window to copy input into */ | |
8fa6d94c EW |
225 | char *wwib; /* input (keyboard) buffer */ |
226 | char *wwibe; /* wwib + sizeof buffer */ | |
b1189050 EW |
227 | char *wwibp; /* current read position in buffer */ |
228 | char *wwibq; /* current write position in buffer */ | |
229 | #define wwgetc() (wwibp < wwibq ? *wwibp++ & 0x7f : -1) | |
230 | #define wwpeekc() (wwibp < wwibq ? *wwibp & 0x7f : -1) | |
231 | #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) | |
16078900 EW |
232 | |
233 | /* things for short circuiting wwiomux() */ | |
234 | char wwintr; /* interrupting */ | |
235 | char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */ | |
236 | jmp_buf wwjmpbuf; /* jmpbuf for above */ | |
237 | #define wwinterrupt() wwintr | |
238 | #define wwsetintr() (wwintr = 1, wwsetjmp ? longjmp(wwjmpbuf, 1) : 0) | |
239 | #define wwclrintr() (wwintr = 0) | |
8fa6d94c | 240 | |
7d77e730 | 241 | /* the window virtual terminal */ |
91b689b9 EW |
242 | #define WWT_TERM "window-v2" |
243 | #define WWT_TERMCAP "WW|window-v2|window program version 2:\ | |
cf28fdac EW |
244 | :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\ |
245 | :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\ | |
246 | :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:" | |
a6833679 EW |
247 | #define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:" |
248 | #define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:" | |
249 | #define WWT_UL "ue=\\ErD:us=\\EsD:" | |
250 | #define WWT_GRP "ae=\\ErH:as=\\EsH:" | |
251 | #define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:" | |
252 | #define WWT_USR "XE=\\Er`:XS=\\Es`:" | |
cf28fdac EW |
253 | #define WWT_ALDL "al=\\EL:dl=\\EM:" |
254 | #define WWT_IMEI "im=\\E@:ei=\\EO:mi:" | |
255 | #define WWT_DC "dc=\\EN:" | |
256 | char wwwintermcap[1024]; /* terminal-specific but window-independent | |
257 | part of the window termcap */ | |
7d77e730 | 258 | |
0896e17e | 259 | /* our functions */ |
2b44d852 | 260 | struct ww *wwopen(); |
2b44d852 | 261 | int wwchild(); |
bb05dfb5 | 262 | int wwsuspend(); |
bb05dfb5 | 263 | char **wwalloc(); |
03e75950 | 264 | char *wwerror(); |
bb05dfb5 | 265 | |
0896e17e | 266 | /* c library functions */ |
bb05dfb5 EW |
267 | char *malloc(); |
268 | char *calloc(); | |
269 | char *getenv(); | |
270 | char *tgetstr(); | |
271 | char *rindex(); | |
272 | char *strcpy(); | |
273 | char *strcat(); | |
274 | ||
275 | #undef MIN | |
276 | #undef MAX | |
277 | #define MIN(x, y) ((x) > (y) ? (y) : (x)) | |
278 | #define MAX(x, y) ((x) > (y) ? (x) : (y)) |