1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Wang at The University of California, Berkeley. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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. 23 * 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 34 * SUCH DAMAGE. 35 * 36 * @(#)ww.h 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/ww.h,v 1.3.12.1 2001/05/17 09:45:01 obrien Exp $ 38 * $DragonFly: src/usr.bin/window/ww.h,v 1.4 2004/09/03 20:38:01 dillon Exp $ 39 */ 40 41 #ifdef OLD_TTY 42 #include <sgtty.h> 43 #else 44 #include <termios.h> 45 #endif 46 #include <setjmp.h> 47 #include <machine/endian.h> 48 49 #define NWW 30 /* maximum number of windows */ 50 51 /* a rectangle */ 52 struct ww_dim { 53 int nr; /* number of rows */ 54 int nc; /* number of columns */ 55 int t, b; /* top, bottom */ 56 int l, r; /* left, right */ 57 }; 58 59 /* a coordinate */ 60 struct ww_pos { 61 int r; /* row */ 62 int c; /* column */ 63 }; 64 65 /* the window structure */ 66 struct ww { 67 /* general flags and states */ 68 char ww_state; /* state of window */ 69 char ww_oflags; /* wwopen flags */ 70 71 /* information for overlap */ 72 struct ww *ww_forw; /* doubly linked list, for overlapping info */ 73 struct ww *ww_back; 74 char ww_index; /* the window index, for wwindex[] */ 75 char ww_order; /* the overlapping order */ 76 77 /* sizes and positions */ 78 struct ww_dim ww_w; /* window size and pos */ 79 struct ww_dim ww_b; /* buffer size and pos */ 80 struct ww_dim ww_i; /* the part inside the screen */ 81 struct ww_pos ww_cur; /* the cursor position, relative to ww_w */ 82 83 /* arrays */ 84 char **ww_win; /* the window */ 85 union ww_char **ww_buf; /* the buffer */ 86 char **ww_fmap; /* map for frame and box windows */ 87 short *ww_nvis; /* how many ww_buf chars are visible per row */ 88 89 /* information for wwwrite() and company */ 90 char ww_wstate; /* state for outputting characters */ 91 char ww_modes; /* current display modes */ 92 char ww_insert; /* insert mode */ 93 char ww_mapnl; /* map \n to \r\n */ 94 char ww_noupdate; /* don't do updates in wwwrite() */ 95 char ww_unctrl; /* expand control characters */ 96 char ww_nointr; /* wwwrite() not interruptable */ 97 char ww_hascursor; /* has fake cursor */ 98 99 /* things for the window process and io */ 100 char ww_ispty; /* ww_pty is really a pty, not socket pair */ 101 char ww_stopped; /* output stopped */ 102 int ww_pty; /* file descriptor of pty or socket pair */ 103 int ww_socket; /* other end of socket pair */ 104 int ww_pid; /* pid of process, if WWS_HASPROC true */ 105 char ww_ttyname[11]; /* "/dev/ttyp?" */ 106 char *ww_ob; /* output buffer */ 107 char *ww_obe; /* end of ww_ob */ 108 char *ww_obp; /* current read position in ww_ob */ 109 char *ww_obq; /* current write position in ww_ob */ 110 111 /* things for the user, they really don't belong here */ 112 char ww_id; /* the user window id */ 113 char ww_center; /* center the label */ 114 char ww_hasframe; /* frame it */ 115 char ww_keepopen; /* keep it open after the process dies */ 116 char *ww_label; /* the user supplied label */ 117 struct ww_dim ww_alt; /* alternate position and size */ 118 }; 119 120 /* state of a tty */ 121 struct ww_tty { 122 #ifdef OLD_TTY 123 struct sgttyb ww_sgttyb; 124 struct tchars ww_tchars; 125 struct ltchars ww_ltchars; 126 int ww_lmode; 127 int ww_ldisc; 128 #else 129 struct termios ww_termios; 130 #endif 131 int ww_fflags; 132 }; 133 134 union ww_char { 135 short c_w; /* as a word */ 136 struct { 137 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN 138 char C_c; /* the character part */ 139 char C_m; /* the mode part */ 140 #endif 141 #if BYTE_ORDER == BIG_ENDIAN 142 char C_m; /* the mode part */ 143 char C_c; /* the character part */ 144 #endif 145 } c_un; 146 }; 147 #define c_c c_un.C_c 148 #define c_m c_un.C_m 149 150 /* for display update */ 151 struct ww_update { 152 int best_gain; 153 int best_col; 154 int gain; 155 }; 156 157 /* parts of ww_char */ 158 #define WWC_CMASK 0x00ff 159 #define WWC_MMASK 0xff00 160 #define WWC_MSHIFT 8 161 162 /* c_m bits */ 163 #define WWM_REV 0x01 /* reverse video */ 164 #define WWM_BLK 0x02 /* blinking */ 165 #define WWM_UL 0x04 /* underlined */ 166 #define WWM_GRP 0x08 /* graphics */ 167 #define WWM_DIM 0x10 /* half intensity */ 168 #define WWM_USR 0x20 /* user specified mode */ 169 #define WWM_GLS 0x40 /* window only, glass, i.e., transparent */ 170 171 /* ww_state values */ 172 #define WWS_INITIAL 0 /* just opened */ 173 #define WWS_HASPROC 1 /* has process on pty */ 174 #define WWS_DEAD 3 /* child died */ 175 176 /* flags for ww_fmap */ 177 #define WWF_U 0x01 178 #define WWF_R 0x02 179 #define WWF_D 0x04 180 #define WWF_L 0x08 181 #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L) 182 #define WWF_LABEL 0x40 183 #define WWF_TOP 0x80 184 185 /* flags to wwopen() */ 186 #define WWO_PTY 0x01 /* want pty */ 187 #define WWO_SOCKET 0x02 /* want socket pair */ 188 #define WWO_REVERSE 0x04 /* make it all reverse video */ 189 #define WWO_GLASS 0x08 /* make it all glass */ 190 #define WWO_FRAME 0x10 /* this is a frame window */ 191 192 /* special ww_index value */ 193 #define WWX_NOBODY NWW 194 195 /* error codes */ 196 #define WWE_NOERR 0 197 #define WWE_SYS 1 /* system error */ 198 #define WWE_NOMEM 2 /* out of memory */ 199 #define WWE_TOOMANY 3 /* too many windows */ 200 #define WWE_NOPTY 4 /* no more ptys */ 201 #define WWE_SIZE 5 /* bad window size */ 202 #define WWE_BADTERM 6 /* bad terminal type */ 203 #define WWE_CANTDO 7 /* dumb terminal */ 204 205 /* wwtouched[] bits, there used to be more than one */ 206 #define WWU_TOUCHED 0x01 /* touched */ 207 208 /* the window structures */ 209 struct ww wwhead; 210 struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */ 211 struct ww wwnobody; 212 213 /* tty things */ 214 struct ww_tty wwoldtty; /* the old (saved) terminal settings */ 215 struct ww_tty wwnewtty; /* the new (current) terminal settings */ 216 struct ww_tty wwwintty; /* the terminal settings for windows */ 217 char *wwterm; /* the terminal name */ 218 char wwtermcap[1024]; /* place for the termcap */ 219 220 /* generally useful variables */ 221 int wwnrow, wwncol; /* the screen size */ 222 char wwavailmodes; /* actually supported modes */ 223 char wwcursormodes; /* the modes for the fake cursor */ 224 char wwwrap; /* terminal has auto wrap around */ 225 int wwdtablesize; /* result of getdtablesize() call */ 226 char **wwsmap; /* the screen map */ 227 union ww_char **wwos; /* the old (current) screen */ 228 union ww_char **wwns; /* the new (desired) screen */ 229 union ww_char **wwcs; /* the checkpointed screen */ 230 char *wwtouched; /* wwns changed flags */ 231 struct ww_update *wwupd; /* for display update */ 232 int wwospeed; /* output baud rate, copied from wwoldtty */ 233 int wwbaud; /* wwospeed converted into actual number */ 234 int wwcursorrow, wwcursorcol; /* where we want the cursor to be */ 235 int wwerrno; /* error number */ 236 237 /* statistics */ 238 int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc; 239 int wwnwwr, wwnwwra, wwnwwrc; 240 int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc; 241 int wwnupdate, wwnupdline, wwnupdmiss; 242 int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline; 243 int wwnread, wwnreade, wwnreadz; 244 int wwnreadc, wwnreadack, wwnreadnack, wwnreadstat, wwnreadec; 245 int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp; 246 int wwnselect, wwnselecte, wwnselectz; 247 248 /* quicky macros */ 249 #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c)) 250 #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c) 251 #define wwunbox(w) wwunframe(w) 252 #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0) 253 #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0) 254 #define wwupdate() wwupdate1(0, wwnrow); 255 256 /* things for handling input */ 257 void wwrint(); /* interrupt handler */ 258 struct ww *wwcurwin; /* window to copy input into */ 259 char *wwib; /* input (keyboard) buffer */ 260 char *wwibe; /* wwib + sizeof buffer */ 261 char *wwibp; /* current read position in buffer */ 262 char *wwibq; /* current write position in buffer */ 263 #define wwmaskc(c) ((c) & 0xff) 264 #define wwgetc() (wwibp < wwibq ? wwmaskc(*wwibp++) : -1) 265 #define wwpeekc() (wwibp < wwibq ? wwmaskc(*wwibp) : -1) 266 #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) 267 268 /* things for short circuiting wwiomux() */ 269 char wwintr; /* interrupting */ 270 char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */ 271 jmp_buf wwjmpbuf; /* jmpbuf for above */ 272 #define wwinterrupt() wwintr 273 #define wwsetintr() do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \ 274 while (0) 275 #define wwclrintr() (wwintr = 0) 276 277 /* checkpointing */ 278 int wwdocheckpoint; 279 280 /* the window virtual terminal */ 281 #define WWT_TERM "window-v2" 282 #define WWT_TERMCAP "WW|window-v2|window program version 2:\ 283 :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\ 284 :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\ 285 :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:" 286 #define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:" 287 #define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:" 288 #define WWT_UL "ue=\\ErD:us=\\EsD:" 289 #define WWT_GRP "ae=\\ErH:as=\\EsH:" 290 #define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:" 291 #define WWT_USR "XE=\\Er`:XS=\\Es`:" 292 #define WWT_ALDL "al=\\EL:dl=\\EM:" 293 #define WWT_IMEI "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */ 294 #define WWT_IC "ic=\\EP:" 295 #define WWT_DC "dc=\\EN:" 296 char wwwintermcap[1024]; /* terminal-specific but window-independent 297 part of the window termcap */ 298 #ifdef TERMINFO 299 /* where to put the temporary terminfo directory */ 300 char wwterminfopath[1024]; 301 #endif 302 303 /* our functions */ 304 struct ww *wwopen(); 305 void wwchild(); 306 void wwalarm(); 307 void wwquit(); 308 char **wwalloc(); 309 char *wwerror(); 310 311 #undef MIN 312 #undef MAX 313 #define MIN(x, y) ((x) > (y) ? (y) : (x)) 314 #define MAX(x, y) ((x) > (y) ? (x) : (y)) 315