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Diffstat (limited to 'usr.bin/window/ww.h')
| -rw-r--r-- | usr.bin/window/ww.h | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/usr.bin/window/ww.h b/usr.bin/window/ww.h new file mode 100644 index 0000000..9241492 --- /dev/null +++ b/usr.bin/window/ww.h @@ -0,0 +1,321 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Edward Wang at The University of California, Berkeley. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)ww.h 8.1 (Berkeley) 6/6/93 + */ + +#ifdef OLD_TTY +#include <sgtty.h> +#else +#include <termios.h> +#endif +#include <setjmp.h> +#include <machine/endian.h> + +#define NWW 30 /* maximum number of windows */ + + /* a rectangle */ +struct ww_dim { + int nr; /* number of rows */ + int nc; /* number of columns */ + int t, b; /* top, bottom */ + int l, r; /* left, right */ +}; + + /* a coordinate */ +struct ww_pos { + int r; /* row */ + int c; /* column */ +}; + + /* the window structure */ +struct ww { + /* general flags and states */ + char ww_state; /* state of window */ + char ww_oflags; /* wwopen flags */ + + /* information for overlap */ + struct ww *ww_forw; /* doubly linked list, for overlapping info */ + struct ww *ww_back; + char ww_index; /* the window index, for wwindex[] */ + char ww_order; /* the overlapping order */ + + /* sizes and positions */ + struct ww_dim ww_w; /* window size and pos */ + struct ww_dim ww_b; /* buffer size and pos */ + struct ww_dim ww_i; /* the part inside the screen */ + struct ww_pos ww_cur; /* the cursor position, relative to ww_w */ + + /* arrays */ + char **ww_win; /* the window */ + union ww_char **ww_buf; /* the buffer */ + char **ww_fmap; /* map for frame and box windows */ + short *ww_nvis; /* how many ww_buf chars are visible per row */ + + /* information for wwwrite() and company */ + char ww_wstate; /* state for outputting characters */ + char ww_modes; /* current display modes */ + char ww_insert; /* insert mode */ + char ww_mapnl; /* map \n to \r\n */ + char ww_noupdate; /* don't do updates in wwwrite() */ + char ww_unctrl; /* expand control characters */ + char ww_nointr; /* wwwrite() not interruptable */ + char ww_hascursor; /* has fake cursor */ + + /* things for the window process and io */ + char ww_ispty; /* ww_pty is really a pty, not socket pair */ + char ww_stopped; /* output stopped */ + int ww_pty; /* file descriptor of pty or socket pair */ + int ww_socket; /* other end of socket pair */ + int ww_pid; /* pid of process, if WWS_HASPROC true */ + char ww_ttyname[11]; /* "/dev/ttyp?" */ + char *ww_ob; /* output buffer */ + char *ww_obe; /* end of ww_ob */ + char *ww_obp; /* current read position in ww_ob */ + char *ww_obq; /* current write position in ww_ob */ + + /* things for the user, they really don't belong here */ + char ww_id; /* the user window id */ + char ww_center; /* center the label */ + char ww_hasframe; /* frame it */ + char ww_keepopen; /* keep it open after the process dies */ + char *ww_label; /* the user supplied label */ + struct ww_dim ww_alt; /* alternate position and size */ +}; + + /* state of a tty */ +struct ww_tty { +#ifdef OLD_TTY + struct sgttyb ww_sgttyb; + struct tchars ww_tchars; + struct ltchars ww_ltchars; + int ww_lmode; + int ww_ldisc; +#else + struct termios ww_termios; +#endif + int ww_fflags; +}; + +union ww_char { + short c_w; /* as a word */ + struct { +#if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN + char C_c; /* the character part */ + char C_m; /* the mode part */ +#endif +#if BYTE_ORDER == BIG_ENDIAN + char C_m; /* the mode part */ + char C_c; /* the character part */ +#endif + } c_un; +}; +#define c_c c_un.C_c +#define c_m c_un.C_m + + /* for display update */ +struct ww_update { + int best_gain; + int best_col; + int gain; +}; + + /* parts of ww_char */ +#define WWC_CMASK 0x00ff +#define WWC_MMASK 0xff00 +#define WWC_MSHIFT 8 + + /* c_m bits */ +#define WWM_REV 0x01 /* reverse video */ +#define WWM_BLK 0x02 /* blinking */ +#define WWM_UL 0x04 /* underlined */ +#define WWM_GRP 0x08 /* graphics */ +#define WWM_DIM 0x10 /* half intensity */ +#define WWM_USR 0x20 /* user specified mode */ +#define WWM_GLS 0x40 /* window only, glass, i.e., transparent */ + + /* ww_state values */ +#define WWS_INITIAL 0 /* just opened */ +#define WWS_HASPROC 1 /* has process on pty */ +#define WWS_DEAD 3 /* child died */ + + /* flags for ww_fmap */ +#define WWF_U 0x01 +#define WWF_R 0x02 +#define WWF_D 0x04 +#define WWF_L 0x08 +#define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L) +#define WWF_LABEL 0x40 +#define WWF_TOP 0x80 + + /* flags to wwopen() */ +#define WWO_PTY 0x01 /* want pty */ +#define WWO_SOCKET 0x02 /* want socket pair */ +#define WWO_REVERSE 0x04 /* make it all reverse video */ +#define WWO_GLASS 0x08 /* make it all glass */ +#define WWO_FRAME 0x10 /* this is a frame window */ + + /* special ww_index value */ +#define WWX_NOBODY NWW + + /* error codes */ +#define WWE_NOERR 0 +#define WWE_SYS 1 /* system error */ +#define WWE_NOMEM 2 /* out of memory */ +#define WWE_TOOMANY 3 /* too many windows */ +#define WWE_NOPTY 4 /* no more ptys */ +#define WWE_SIZE 5 /* bad window size */ +#define WWE_BADTERM 6 /* bad terminal type */ +#define WWE_CANTDO 7 /* dumb terminal */ + + /* wwtouched[] bits, there used to be more than one */ +#define WWU_TOUCHED 0x01 /* touched */ + + /* the window structures */ +struct ww wwhead; +struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */ +struct ww wwnobody; + + /* tty things */ +struct ww_tty wwoldtty; /* the old (saved) terminal settings */ +struct ww_tty wwnewtty; /* the new (current) terminal settings */ +struct ww_tty wwwintty; /* the terminal settings for windows */ +char *wwterm; /* the terminal name */ +char wwtermcap[1024]; /* place for the termcap */ + + /* generally useful variables */ +int wwnrow, wwncol; /* the screen size */ +char wwavailmodes; /* actually supported modes */ +char wwcursormodes; /* the modes for the fake cursor */ +char wwwrap; /* terminal has auto wrap around */ +int wwdtablesize; /* result of getdtablesize() call */ +char **wwsmap; /* the screen map */ +union ww_char **wwos; /* the old (current) screen */ +union ww_char **wwns; /* the new (desired) screen */ +union ww_char **wwcs; /* the checkpointed screen */ +char *wwtouched; /* wwns changed flags */ +struct ww_update *wwupd; /* for display update */ +int wwospeed; /* output baud rate, copied from wwoldtty */ +int wwbaud; /* wwospeed converted into actual number */ +int wwcursorrow, wwcursorcol; /* where we want the cursor to be */ +int wwerrno; /* error number */ + + /* statistics */ +int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc; +int wwnwwr, wwnwwra, wwnwwrc; +int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc; +int wwnupdate, wwnupdline, wwnupdmiss; +int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline; +int wwnread, wwnreade, wwnreadz; +int wwnreadc, wwnreadack, wwnreadnack, wwnreadstat, wwnreadec; +int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp; +int wwnselect, wwnselecte, wwnselectz; + + /* quicky macros */ +#define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c)) +#define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c) +#define wwunbox(w) wwunframe(w) +#define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0) +#define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0) +#define wwupdate() wwupdate1(0, wwnrow); + + /* things for handling input */ +void wwrint(); /* interrupt handler */ +struct ww *wwcurwin; /* window to copy input into */ +char *wwib; /* input (keyboard) buffer */ +char *wwibe; /* wwib + sizeof buffer */ +char *wwibp; /* current read position in buffer */ +char *wwibq; /* current write position in buffer */ +#define wwmaskc(c) ((c) & 0x7f) +#define wwgetc() (wwibp < wwibq ? wwmaskc(*wwibp++) : -1) +#define wwpeekc() (wwibp < wwibq ? wwmaskc(*wwibp) : -1) +#define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) + + /* things for short circuiting wwiomux() */ +char wwintr; /* interrupting */ +char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */ +jmp_buf wwjmpbuf; /* jmpbuf for above */ +#define wwinterrupt() wwintr +#define wwsetintr() do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \ + while (0) +#define wwclrintr() (wwintr = 0) + + /* checkpointing */ +int wwdocheckpoint; + + /* the window virtual terminal */ +#define WWT_TERM "window-v2" +#define WWT_TERMCAP "WW|window-v2|window program version 2:\ + :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\ + :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\ + :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:" +#define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:" +#define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:" +#define WWT_UL "ue=\\ErD:us=\\EsD:" +#define WWT_GRP "ae=\\ErH:as=\\EsH:" +#define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:" +#define WWT_USR "XE=\\Er`:XS=\\Es`:" +#define WWT_ALDL "al=\\EL:dl=\\EM:" +#define WWT_IMEI "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */ +#define WWT_IC "ic=\\EP:" +#define WWT_DC "dc=\\EN:" +char wwwintermcap[1024]; /* terminal-specific but window-independent + part of the window termcap */ +#ifdef TERMINFO + /* where to put the temporary terminfo directory */ +char wwterminfopath[1024]; +#endif + + /* our functions */ +struct ww *wwopen(); +void wwchild(); +void wwalarm(); +void wwquit(); +char **wwalloc(); +char *wwerror(); + + /* c library functions */ +char *malloc(); +char *calloc(); +char *getenv(); +char *tgetstr(); +char *rindex(); +char *strcpy(); +char *strcat(); + +#undef MIN +#undef MAX +#define MIN(x, y) ((x) > (y) ? (y) : (x)) +#define MAX(x, y) ((x) > (y) ? (x) : (y)) |
