2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)ww.h 8.1 (Berkeley) 6/6/93
40 #include <sys/types.h>
48 #include <machine/endian.h>
50 #define NWW 30 /* maximum number of windows */
54 int nr; /* number of rows */
55 int nc; /* number of columns */
56 int t, b; /* top, bottom */
57 int l, r; /* left, right */
66 /* the window structure */
68 /* general flags and states */
69 char ww_state; /* state of window */
70 char ww_oflags; /* wwopen flags */
72 /* information for overlap */
73 struct ww *ww_forw; /* doubly linked list, for overlapping info */
75 char ww_index; /* the window index, for wwindex[] */
76 char ww_order; /* the overlapping order */
78 /* sizes and positions */
79 struct ww_dim ww_w; /* window size and pos */
80 struct ww_dim ww_b; /* buffer size and pos */
81 struct ww_dim ww_i; /* the part inside the screen */
82 struct ww_pos ww_cur; /* the cursor position, relative to ww_w */
85 char **ww_win; /* the window */
86 union ww_char **ww_buf; /* the buffer */
87 char **ww_fmap; /* map for frame and box windows */
88 short *ww_nvis; /* how many ww_buf chars are visible per row */
90 /* information for wwwrite() and company */
91 char ww_wstate; /* state for outputting characters */
92 char ww_modes; /* current display modes */
93 char ww_insert; /* insert mode */
94 char ww_mapnl; /* map \n to \r\n */
95 char ww_noupdate; /* don't do updates in wwwrite() */
96 char ww_unctrl; /* expand control characters */
97 char ww_nointr; /* wwwrite() not interruptable */
98 char ww_hascursor; /* has fake cursor */
100 /* things for the window process and io */
101 char ww_ispty; /* ww_pty is really a pty, not socket pair */
102 char ww_stopped; /* output stopped */
103 int ww_pty; /* file descriptor of pty or socket pair */
104 int ww_socket; /* other end of socket pair */
105 int ww_pid; /* pid of process, if WWS_HASPROC true */
106 char ww_ttyname[11]; /* "/dev/ttyp?" */
107 char *ww_ob; /* output buffer */
108 char *ww_obe; /* end of ww_ob */
109 char *ww_obp; /* current read position in ww_ob */
110 char *ww_obq; /* current write position in ww_ob */
112 /* things for the user, they really don't belong here */
113 char ww_id; /* the user window id */
114 char ww_center; /* center the label */
115 char ww_hasframe; /* frame it */
116 char ww_keepopen; /* keep it open after the process dies */
117 char *ww_label; /* the user supplied label */
118 struct ww_dim ww_alt; /* alternate position and size */
124 struct sgttyb ww_sgttyb;
125 struct tchars ww_tchars;
126 struct ltchars ww_ltchars;
130 struct termios ww_termios;
136 short c_w; /* as a word */
138 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
139 char C_c; /* the character part */
140 char C_m; /* the mode part */
142 #if BYTE_ORDER == BIG_ENDIAN
143 char C_m; /* the mode part */
144 char C_c; /* the character part */
151 /* for display update */
158 /* parts of ww_char */
159 #define WWC_CMASK 0x00ff
160 #define WWC_MMASK 0xff00
164 #define WWM_REV 0x01 /* reverse video */
165 #define WWM_BLK 0x02 /* blinking */
166 #define WWM_UL 0x04 /* underlined */
167 #define WWM_GRP 0x08 /* graphics */
168 #define WWM_DIM 0x10 /* half intensity */
169 #define WWM_USR 0x20 /* user specified mode */
170 #define WWM_GLS 0x40 /* window only, glass, i.e., transparent */
172 /* ww_state values */
173 #define WWS_INITIAL 0 /* just opened */
174 #define WWS_HASPROC 1 /* has process on pty */
175 #define WWS_DEAD 3 /* child died */
177 /* flags for ww_fmap */
182 #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L)
183 #define WWF_LABEL 0x40
186 /* flags to wwopen() */
187 #define WWO_PTY 0x01 /* want pty */
188 #define WWO_SOCKET 0x02 /* want socket pair */
189 #define WWO_REVERSE 0x04 /* make it all reverse video */
190 #define WWO_GLASS 0x08 /* make it all glass */
191 #define WWO_FRAME 0x10 /* this is a frame window */
193 /* special ww_index value */
194 #define WWX_NOBODY NWW
198 #define WWE_SYS 1 /* system error */
199 #define WWE_NOMEM 2 /* out of memory */
200 #define WWE_TOOMANY 3 /* too many windows */
201 #define WWE_NOPTY 4 /* no more ptys */
202 #define WWE_SIZE 5 /* bad window size */
203 #define WWE_BADTERM 6 /* bad terminal type */
204 #define WWE_CANTDO 7 /* dumb terminal */
206 /* wwtouched[] bits, there used to be more than one */
207 #define WWU_TOUCHED 0x01 /* touched */
209 /* the window structures */
211 struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */
215 struct ww_tty wwoldtty; /* the old (saved) terminal settings */
216 struct ww_tty wwnewtty; /* the new (current) terminal settings */
217 struct ww_tty wwwintty; /* the terminal settings for windows */
218 char *wwterm; /* the terminal name */
219 char wwtermcap[1024]; /* place for the termcap */
221 /* generally useful variables */
222 int wwnrow, wwncol; /* the screen size */
223 char wwavailmodes; /* actually supported modes */
224 char wwcursormodes; /* the modes for the fake cursor */
225 char wwwrap; /* terminal has auto wrap around */
226 int wwdtablesize; /* result of getdtablesize() call */
227 char **wwsmap; /* the screen map */
228 union ww_char **wwos; /* the old (current) screen */
229 union ww_char **wwns; /* the new (desired) screen */
230 union ww_char **wwcs; /* the checkpointed screen */
231 char *wwtouched; /* wwns changed flags */
232 struct ww_update *wwupd; /* for display update */
233 int wwospeed; /* output baud rate, copied from wwoldtty */
234 int wwbaud; /* wwospeed converted into actual number */
235 int wwcursorrow, wwcursorcol; /* where we want the cursor to be */
236 int wwerrno; /* error number */
239 int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc;
240 int wwnwwr, wwnwwra, wwnwwrc;
241 int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc;
242 int wwnupdate, wwnupdline, wwnupdmiss;
243 int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline;
244 int wwnread, wwnreade, wwnreadz;
245 int wwnreadc, wwnreadack, wwnreadnack, wwnreadstat, wwnreadec;
246 int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp;
247 int wwnselect, wwnselecte, wwnselectz;
250 #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c))
251 #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c)
252 #define wwunbox(w) wwunframe(w)
253 #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0)
254 #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0)
255 #define wwupdate() wwupdate1(0, wwnrow);
257 /* things for handling input */
258 void wwrint(); /* interrupt handler */
259 struct ww *wwcurwin; /* window to copy input into */
260 char *wwib; /* input (keyboard) buffer */
261 char *wwibe; /* wwib + sizeof buffer */
262 char *wwibp; /* current read position in buffer */
263 char *wwibq; /* current write position in buffer */
264 #define wwmaskc(c) ((c) & 0xff)
265 #define wwgetc() (wwibp < wwibq ? wwmaskc(*wwibp++) : -1)
266 #define wwpeekc() (wwibp < wwibq ? wwmaskc(*wwibp) : -1)
267 #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1)
269 /* things for short circuiting wwiomux() */
270 char wwintr; /* interrupting */
271 char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */
272 jmp_buf wwjmpbuf; /* jmpbuf for above */
273 #define wwinterrupt() wwintr
274 #define wwsetintr() do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \
276 #define wwclrintr() (wwintr = 0)
281 /* the window virtual terminal */
282 #define WWT_TERM "window-v2"
283 #define WWT_TERMCAP "WW|window-v2|window program version 2:\
284 :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\
285 :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\
286 :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:"
287 #define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:"
288 #define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:"
289 #define WWT_UL "ue=\\ErD:us=\\EsD:"
290 #define WWT_GRP "ae=\\ErH:as=\\EsH:"
291 #define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:"
292 #define WWT_USR "XE=\\Er`:XS=\\Es`:"
293 #define WWT_ALDL "al=\\EL:dl=\\EM:"
294 #define WWT_IMEI "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */
295 #define WWT_IC "ic=\\EP:"
296 #define WWT_DC "dc=\\EN:"
297 char wwwintermcap[1024]; /* terminal-specific but window-independent
298 part of the window termcap */
300 /* where to put the temporary terminfo directory */
301 char wwterminfopath[1024];
312 /* c library functions */
321 #define MIN(x, y) ((x) > (y) ? (y) : (x))
322 #define MAX(x, y) ((x) > (y) ? (x) : (y))