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
45 #include <machine/endian.h>
47 #define NWW 30 /* maximum number of windows */
51 int nr; /* number of rows */
52 int nc; /* number of columns */
53 int t, b; /* top, bottom */
54 int l, r; /* left, right */
63 /* the window structure */
65 /* general flags and states */
66 char ww_state; /* state of window */
67 char ww_oflags; /* wwopen flags */
69 /* information for overlap */
70 struct ww *ww_forw; /* doubly linked list, for overlapping info */
72 char ww_index; /* the window index, for wwindex[] */
73 char ww_order; /* the overlapping order */
75 /* sizes and positions */
76 struct ww_dim ww_w; /* window size and pos */
77 struct ww_dim ww_b; /* buffer size and pos */
78 struct ww_dim ww_i; /* the part inside the screen */
79 struct ww_pos ww_cur; /* the cursor position, relative to ww_w */
82 char **ww_win; /* the window */
83 union ww_char **ww_buf; /* the buffer */
84 char **ww_fmap; /* map for frame and box windows */
85 short *ww_nvis; /* how many ww_buf chars are visible per row */
87 /* information for wwwrite() and company */
88 char ww_wstate; /* state for outputting characters */
89 char ww_modes; /* current display modes */
90 char ww_insert; /* insert mode */
91 char ww_mapnl; /* map \n to \r\n */
92 char ww_noupdate; /* don't do updates in wwwrite() */
93 char ww_unctrl; /* expand control characters */
94 char ww_nointr; /* wwwrite() not interruptable */
95 char ww_hascursor; /* has fake cursor */
97 /* things for the window process and io */
98 char ww_ispty; /* ww_pty is really a pty, not socket pair */
99 char ww_stopped; /* output stopped */
100 int ww_pty; /* file descriptor of pty or socket pair */
101 int ww_socket; /* other end of socket pair */
102 int ww_pid; /* pid of process, if WWS_HASPROC true */
103 char ww_ttyname[11]; /* "/dev/ttyp?" */
104 char *ww_ob; /* output buffer */
105 char *ww_obe; /* end of ww_ob */
106 char *ww_obp; /* current read position in ww_ob */
107 char *ww_obq; /* current write position in ww_ob */
109 /* things for the user, they really don't belong here */
110 char ww_id; /* the user window id */
111 char ww_center; /* center the label */
112 char ww_hasframe; /* frame it */
113 char ww_keepopen; /* keep it open after the process dies */
114 char *ww_label; /* the user supplied label */
115 struct ww_dim ww_alt; /* alternate position and size */
121 struct sgttyb ww_sgttyb;
122 struct tchars ww_tchars;
123 struct ltchars ww_ltchars;
127 struct termios ww_termios;
133 short c_w; /* as a word */
135 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
136 char C_c; /* the character part */
137 char C_m; /* the mode part */
139 #if BYTE_ORDER == BIG_ENDIAN
140 char C_m; /* the mode part */
141 char C_c; /* the character part */
148 /* for display update */
155 /* parts of ww_char */
156 #define WWC_CMASK 0x00ff
157 #define WWC_MMASK 0xff00
161 #define WWM_REV 0x01 /* reverse video */
162 #define WWM_BLK 0x02 /* blinking */
163 #define WWM_UL 0x04 /* underlined */
164 #define WWM_GRP 0x08 /* graphics */
165 #define WWM_DIM 0x10 /* half intensity */
166 #define WWM_USR 0x20 /* user specified mode */
167 #define WWM_GLS 0x40 /* window only, glass, i.e., transparent */
169 /* ww_state values */
170 #define WWS_INITIAL 0 /* just opened */
171 #define WWS_HASPROC 1 /* has process on pty */
172 #define WWS_DEAD 3 /* child died */
174 /* flags for ww_fmap */
179 #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L)
180 #define WWF_LABEL 0x40
183 /* flags to wwopen() */
184 #define WWO_PTY 0x01 /* want pty */
185 #define WWO_SOCKET 0x02 /* want socket pair */
186 #define WWO_REVERSE 0x04 /* make it all reverse video */
187 #define WWO_GLASS 0x08 /* make it all glass */
188 #define WWO_FRAME 0x10 /* this is a frame window */
190 /* special ww_index value */
191 #define WWX_NOBODY NWW
195 #define WWE_SYS 1 /* system error */
196 #define WWE_NOMEM 2 /* out of memory */
197 #define WWE_TOOMANY 3 /* too many windows */
198 #define WWE_NOPTY 4 /* no more ptys */
199 #define WWE_SIZE 5 /* bad window size */
200 #define WWE_BADTERM 6 /* bad terminal type */
201 #define WWE_CANTDO 7 /* dumb terminal */
203 /* wwtouched[] bits, there used to be more than one */
204 #define WWU_TOUCHED 0x01 /* touched */
206 /* the window structures */
208 struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */
212 struct ww_tty wwoldtty; /* the old (saved) terminal settings */
213 struct ww_tty wwnewtty; /* the new (current) terminal settings */
214 struct ww_tty wwwintty; /* the terminal settings for windows */
215 char *wwterm; /* the terminal name */
216 char wwtermcap[1024]; /* place for the termcap */
218 /* generally useful variables */
219 int wwnrow, wwncol; /* the screen size */
220 char wwavailmodes; /* actually supported modes */
221 char wwcursormodes; /* the modes for the fake cursor */
222 char wwwrap; /* terminal has auto wrap around */
223 int wwdtablesize; /* result of getdtablesize() call */
224 char **wwsmap; /* the screen map */
225 union ww_char **wwos; /* the old (current) screen */
226 union ww_char **wwns; /* the new (desired) screen */
227 union ww_char **wwcs; /* the checkpointed screen */
228 char *wwtouched; /* wwns changed flags */
229 struct ww_update *wwupd; /* for display update */
230 int wwospeed; /* output baud rate, copied from wwoldtty */
231 int wwbaud; /* wwospeed converted into actual number */
232 int wwcursorrow, wwcursorcol; /* where we want the cursor to be */
233 int wwerrno; /* error number */
236 int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc;
237 int wwnwwr, wwnwwra, wwnwwrc;
238 int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc;
239 int wwnupdate, wwnupdline, wwnupdmiss;
240 int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline;
241 int wwnread, wwnreade, wwnreadz;
242 int wwnreadc, wwnreadack, wwnreadnack, wwnreadstat, wwnreadec;
243 int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp;
244 int wwnselect, wwnselecte, wwnselectz;
247 #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c))
248 #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c)
249 #define wwunbox(w) wwunframe(w)
250 #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0)
251 #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0)
252 #define wwupdate() wwupdate1(0, wwnrow);
254 /* things for handling input */
255 void wwrint(); /* interrupt handler */
256 struct ww *wwcurwin; /* window to copy input into */
257 char *wwib; /* input (keyboard) buffer */
258 char *wwibe; /* wwib + sizeof buffer */
259 char *wwibp; /* current read position in buffer */
260 char *wwibq; /* current write position in buffer */
261 #define wwmaskc(c) ((c) & 0xff)
262 #define wwgetc() (wwibp < wwibq ? wwmaskc(*wwibp++) : -1)
263 #define wwpeekc() (wwibp < wwibq ? wwmaskc(*wwibp) : -1)
264 #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1)
266 /* things for short circuiting wwiomux() */
267 char wwintr; /* interrupting */
268 char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */
269 jmp_buf wwjmpbuf; /* jmpbuf for above */
270 #define wwinterrupt() wwintr
271 #define wwsetintr() do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \
273 #define wwclrintr() (wwintr = 0)
278 /* the window virtual terminal */
279 #define WWT_TERM "window-v2"
280 #define WWT_TERMCAP "WW|window-v2|window program version 2:\
281 :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\
282 :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\
283 :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:"
284 #define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:"
285 #define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:"
286 #define WWT_UL "ue=\\ErD:us=\\EsD:"
287 #define WWT_GRP "ae=\\ErH:as=\\EsH:"
288 #define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:"
289 #define WWT_USR "XE=\\Er`:XS=\\Es`:"
290 #define WWT_ALDL "al=\\EL:dl=\\EM:"
291 #define WWT_IMEI "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */
292 #define WWT_IC "ic=\\EP:"
293 #define WWT_DC "dc=\\EN:"
294 char wwwintermcap[1024]; /* terminal-specific but window-independent
295 part of the window termcap */
297 /* where to put the temporary terminfo directory */
298 char wwterminfopath[1024];
309 /* c library functions */
318 #define MIN(x, y) ((x) > (y) ? (y) : (x))
319 #define MAX(x, y) ((x) > (y) ? (x) : (y))