Commit | Line | Data |
---|---|---|
bb05dfb5 | 1 | /* |
60de5df9 EW |
2 | * @(#)ww.h 3.36 %G% |
3 | */ | |
4 | ||
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. | |
bb05dfb5 | 9 | */ |
0edb449f EW |
10 | |
11 | #include <sgtty.h> | |
b1189050 | 12 | #include <setjmp.h> |
bb05dfb5 | 13 | |
8fa6d94c | 14 | #define NWW 30 /* maximum number of windows */ |
0edb449f | 15 | |
b47565d0 | 16 | /* a rectangle */ |
c417b691 | 17 | struct ww_dim { |
bb05dfb5 EW |
18 | int nr; /* number of rows */ |
19 | int nc; /* number of columns */ | |
20 | int t, b; /* top, bottom */ | |
21 | int l, r; /* left, right */ | |
22 | }; | |
23 | ||
b47565d0 | 24 | /* a coordinate */ |
bb05dfb5 EW |
25 | struct ww_pos { |
26 | int r; /* row */ | |
27 | int c; /* column */ | |
c417b691 EW |
28 | }; |
29 | ||
b47565d0 | 30 | /* the window structure */ |
0edb449f | 31 | struct ww { |
b27a9cfb EW |
32 | /* general flags and states */ |
33 | char ww_state; /* state of window */ | |
34 | char ww_oflags; /* wwopen flags */ | |
35 | ||
0e64e422 | 36 | /* information for overlap */ |
bb05dfb5 EW |
37 | struct ww *ww_forw; /* doubly linked list, for overlapping info */ |
38 | struct ww *ww_back; | |
0e64e422 | 39 | char ww_index; /* the window index, for wwindex[] */ |
bb05dfb5 | 40 | char ww_order; /* the overlapping order */ |
f2a77fe1 EW |
41 | |
42 | /* sizes and positions */ | |
43 | struct ww_dim ww_w; /* window size and pos */ | |
44 | struct ww_dim ww_b; /* buffer size and pos */ | |
19f9784c | 45 | struct ww_dim ww_i; /* the part inside the screen */ |
bb05dfb5 | 46 | struct ww_pos ww_cur; /* the cursor position, relative to ww_w */ |
f2a77fe1 EW |
47 | |
48 | /* arrays */ | |
bb05dfb5 EW |
49 | char **ww_win; /* the window */ |
50 | union ww_char **ww_buf; /* the buffer */ | |
2357b64e | 51 | char **ww_fmap; /* map for frame and box windows */ |
bb05dfb5 | 52 | short *ww_nvis; /* how many ww_buf chars are visible per row */ |
f2a77fe1 | 53 | |
0e64e422 EW |
54 | /* information for wwwrite() and company */ |
55 | char ww_wstate; /* state for outputting characters */ | |
56 | char ww_modes; /* current display modes */ | |
57 | char ww_insert; /* insert mode */ | |
58 | char ww_mapnl; /* map \n to \r\n */ | |
59 | char ww_noupdate; /* don't do updates in wwwrite() */ | |
60 | char ww_unctrl; /* expand control characters */ | |
61 | char ww_nointr; /* wwwrite() not interruptable */ | |
62 | char ww_hascursor; /* has fake cursor */ | |
0e64e422 | 63 | |
b1189050 | 64 | /* things for the window process and io */ |
7ecf4dca EW |
65 | char ww_ispty; /* ww_pty is really a pty, not socket pair */ |
66 | char ww_stopped; /* output stopped */ | |
67 | int ww_pty; /* file descriptor of pty or socket pair */ | |
68 | int ww_socket; /* other end of socket pair */ | |
bb05dfb5 | 69 | int ww_pid; /* pid of process, if WWS_HASPROC true */ |
0896e17e | 70 | char ww_ttyname[11]; /* "/dev/ttyp?" */ |
8fa6d94c EW |
71 | char *ww_ob; /* output buffer */ |
72 | char *ww_obe; /* end of ww_ob */ | |
7ecf4dca EW |
73 | char *ww_obp; /* current read position in ww_ob */ |
74 | char *ww_obq; /* current write position in ww_ob */ | |
f176f953 EW |
75 | |
76 | /* things for the user, they really don't belong here */ | |
0e64e422 | 77 | char ww_id; /* the user window id */ |
b27a9cfb EW |
78 | char ww_center; /* center the label */ |
79 | char ww_hasframe; /* frame it */ | |
bb05dfb5 | 80 | char *ww_label; /* the user supplied label */ |
b27a9cfb | 81 | struct ww_dim ww_alt; /* alternate position and size */ |
4711df8b EW |
82 | }; |
83 | ||
b47565d0 | 84 | /* state of a tty */ |
4711df8b | 85 | struct ww_tty { |
0edb449f EW |
86 | struct sgttyb ww_sgttyb; |
87 | struct tchars ww_tchars; | |
88 | struct ltchars ww_ltchars; | |
89 | int ww_lmode; | |
90 | int ww_ldisc; | |
b1189050 | 91 | int ww_fflags; |
0edb449f EW |
92 | }; |
93 | ||
0896e17e EW |
94 | union ww_char { |
95 | short c_w; /* as a word */ | |
96 | struct { | |
d99cae10 | 97 | #ifndef mc68000 |
0896e17e EW |
98 | char C_c; /* the character part */ |
99 | char C_m; /* the mode part */ | |
a6fccdf5 EW |
100 | #else |
101 | char C_m; /* the mode part */ | |
102 | char C_c; /* the character part */ | |
103 | #endif | |
0896e17e EW |
104 | } c_un; |
105 | }; | |
106 | #define c_c c_un.C_c | |
107 | #define c_m c_un.C_m | |
108 | ||
109 | /* parts of ww_char */ | |
110 | #define WWC_CMASK 0x00ff | |
111 | #define WWC_MMASK 0xff00 | |
112 | #define WWC_MSHIFT 8 | |
113 | ||
114 | /* c_m bits */ | |
115 | #define WWM_REV 0x01 /* reverse video */ | |
116 | #define WWM_BLK 0x02 /* blinking */ | |
117 | #define WWM_UL 0x04 /* underlined */ | |
a830e8bb | 118 | #define WWM_GRP 0x08 /* graphics */ |
0896e17e | 119 | #define WWM_GLS 0x10 /* window only, glass, i.e. transparent */ |
0896e17e EW |
120 | |
121 | /* ww_state values */ | |
122 | #define WWS_INITIAL 0 /* just opened */ | |
b47565d0 | 123 | #define WWS_HASPROC 1 /* has process on pty */ |
0896e17e EW |
124 | #define WWS_DEAD 3 /* child died */ |
125 | ||
2357b64e | 126 | /* flags for ww_fmap */ |
0896e17e EW |
127 | #define WWF_U 0x01 |
128 | #define WWF_R 0x02 | |
129 | #define WWF_D 0x04 | |
130 | #define WWF_L 0x08 | |
131 | #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L) | |
132 | #define WWF_LABEL 0x40 | |
133 | #define WWF_TOP 0x80 | |
134 | ||
2357b64e EW |
135 | /* flags to wwopen() */ |
136 | #define WWO_PTY 0x01 /* want pty */ | |
7ecf4dca EW |
137 | #define WWO_SOCKET 0x02 /* want socket pair */ |
138 | #define WWO_REVERSE 0x04 /* make it all reverse video */ | |
139 | #define WWO_GLASS 0x08 /* make it all glass */ | |
140 | #define WWO_FRAME 0x10 /* this is a frame window */ | |
2357b64e | 141 | |
0896e17e EW |
142 | /* special ww_index value */ |
143 | #define WWX_NOBODY NWW | |
144 | ||
04d70db4 | 145 | /* error codes */ |
03e75950 EW |
146 | #define WWE_NOERR 0 |
147 | #define WWE_SYS 1 /* system error */ | |
148 | #define WWE_NOMEM 2 /* out of memory */ | |
149 | #define WWE_TOOMANY 3 /* too many windows */ | |
150 | #define WWE_NOPTY 4 /* no more ptys */ | |
151 | #define WWE_SIZE 5 /* bad window size */ | |
152 | #define WWE_BADTERM 6 /* bad terminal type */ | |
153 | #define WWE_CANTDO 7 /* dumb terminal */ | |
154 | ||
04d70db4 EW |
155 | /* wwtouched[] bits */ |
156 | #define WWU_TOUCHED 0x01 /* touched */ | |
157 | #define WWU_MAJOR 0x02 /* major change */ | |
158 | ||
8fa6d94c | 159 | /* the window structures */ |
bb05dfb5 | 160 | struct ww wwhead; |
0896e17e | 161 | struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */ |
bb05dfb5 | 162 | struct ww wwnobody; |
2b44d852 | 163 | |
8fa6d94c | 164 | /* tty things */ |
0896e17e EW |
165 | struct ww_tty wwoldtty; /* the old (saved) terminal settings */ |
166 | struct ww_tty wwnewtty; /* the new (current) terminal settings */ | |
167 | struct ww_tty wwwintty; /* the terminal settings for windows */ | |
168 | char *wwterm; /* the terminal name */ | |
169 | char wwtermcap[1024]; /* place for the termcap */ | |
170 | char wwkeys[512]; /* termcap fields for the function keys */ | |
4222244b | 171 | char wwwintermcap[1024]; /* termcap for windows */ |
bb05dfb5 | 172 | |
8fa6d94c | 173 | /* generally useful variables */ |
bb05dfb5 | 174 | int wwnrow, wwncol; /* the screen size */ |
7d77e730 | 175 | char wwavailmodes; /* actually supported modes */ |
73218728 | 176 | char wwcursormodes; /* the modes for the fake cursor */ |
5e785082 | 177 | char wwwrap; /* terminal has auto wrap around */ |
0896e17e | 178 | int wwdtablesize; /* result of getdtablesize() call */ |
bb05dfb5 | 179 | char **wwsmap; /* the screen map */ |
0896e17e EW |
180 | union ww_char **wwos; /* the old (current) screen */ |
181 | union ww_char **wwns; /* the new (desired) screen */ | |
861cd1ed | 182 | char *wwtouched; /* wwns changed flags */ |
0896e17e EW |
183 | int wwbaudmap[]; /* maps stty() baud rate code into number */ |
184 | int wwbaud; /* wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed] */ | |
185 | int wwcursorrow, wwcursorcol; /* where we want the cursor to be */ | |
03e75950 | 186 | int wwerrno; /* error number */ |
0edb449f | 187 | |
bb05dfb5 | 188 | /* statistics */ |
b1189050 EW |
189 | int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc; |
190 | int wwnwwr, wwnwwra, wwnwwrc; | |
04d70db4 | 191 | int wwnupdate, wwnupdline, wwnupdmiss, wwnmajline, wwnmajmiss; |
8fa6d94c EW |
192 | int wwnread, wwnreade, wwnreadz, wwnreadc; |
193 | int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp; | |
194 | int wwnselect, wwnselecte, wwnselectz; | |
0edb449f | 195 | |
0896e17e | 196 | /* quicky macros */ |
bb05dfb5 | 197 | #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c)) |
f2a77fe1 | 198 | #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c) |
2357b64e | 199 | #define wwunbox(w) wwunframe(w) |
f2a77fe1 | 200 | #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0) |
86697c44 | 201 | #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0) |
b1189050 | 202 | #define wwupdate() wwupdate1(0, wwnrow); |
2b44d852 | 203 | |
8fa6d94c | 204 | /* things for handling input */ |
b1189050 EW |
205 | int wwrint(); /* interrupt handler */ |
206 | struct ww *wwcurwin; /* window to copy input into */ | |
207 | char wwsetjmp; /* want a longjmp() from wwrint() */ | |
208 | jmp_buf wwjmpbuf; /* jmpbuf for above */ | |
8fa6d94c EW |
209 | char *wwib; /* input (keyboard) buffer */ |
210 | char *wwibe; /* wwib + sizeof buffer */ | |
b1189050 EW |
211 | char *wwibp; /* current read position in buffer */ |
212 | char *wwibq; /* current write position in buffer */ | |
213 | #define wwgetc() (wwibp < wwibq ? *wwibp++ & 0x7f : -1) | |
214 | #define wwpeekc() (wwibp < wwibq ? *wwibp & 0x7f : -1) | |
215 | #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) | |
216 | #define wwinterrupt() (wwibp < wwibq) | |
8fa6d94c | 217 | |
7d77e730 EW |
218 | /* the window virtual terminal */ |
219 | #define WWT_TERM "TERM=window" | |
a598c465 | 220 | #define WWT_TERMCAP "WW|window|window package:\ |
7d77e730 | 221 | :cr=^M:nl=^J:bl=^G:\ |
a598c465 EW |
222 | :al=\\EL:am:le=^H:bs:cd=\\EJ:ce=\\EK:cl=\\EE:cm=\\EY%+ %+ :\ |
223 | :da:db:dc=\\EN:dl=\\EM:do=\\EB:ei=\\EO:ho=\\EH:im=\\E@:mi:\ | |
7d77e730 EW |
224 | :nd=\\EC:ta=^I:pt:up=\\EA:" |
225 | #define WWT_REV "se=\\Eq:so=\\Ep:" | |
226 | #define WWT_UL "ue=\\Es:us=\\Er:" | |
78be6843 | 227 | #define WWT_GRP "ae=\\EG:as=\\EF:" |
7d77e730 | 228 | |
0896e17e | 229 | /* our functions */ |
2b44d852 | 230 | struct ww *wwopen(); |
2b44d852 | 231 | int wwchild(); |
bb05dfb5 | 232 | int wwsuspend(); |
bb05dfb5 | 233 | char **wwalloc(); |
03e75950 | 234 | char *wwerror(); |
bb05dfb5 | 235 | |
0896e17e | 236 | /* c library functions */ |
bb05dfb5 EW |
237 | char *malloc(); |
238 | char *calloc(); | |
239 | char *getenv(); | |
240 | char *tgetstr(); | |
241 | char *rindex(); | |
242 | char *strcpy(); | |
243 | char *strcat(); | |
b1189050 | 244 | char *sprintf(); |
bb05dfb5 EW |
245 | |
246 | #undef MIN | |
247 | #undef MAX | |
248 | #define MIN(x, y) ((x) > (y) ? (y) : (x)) | |
249 | #define MAX(x, y) ((x) > (y) ? (x) : (y)) |