/* * @(#)ww.h 3.37 5/2/86 */ /* * Copyright (c) 1983 Regents of the University of California, * All rights reserved. Redistribution permitted subject to * the terms of the Berkeley Software License Agreement. */ #include #include #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_label; /* the user supplied label */ struct ww_dim ww_alt; /* alternate position and size */ }; /* state of a tty */ struct ww_tty { struct sgttyb ww_sgttyb; struct tchars ww_tchars; struct ltchars ww_ltchars; int ww_lmode; int ww_ldisc; int ww_fflags; }; union ww_char { short c_w; /* as a word */ struct { #ifndef mc68000 char C_c; /* the character part */ char C_m; /* the mode part */ #else 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 /* 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_USR 0x10 /* 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 */ #define WWU_TOUCHED 0x01 /* touched */ #define WWU_MAJOR 0x02 /* major change */ /* 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 */ char wwkeys[512]; /* termcap fields for the function keys */ char wwwintermcap[1024]; /* termcap for windows */ /* 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 */ char *wwtouched; /* wwns changed flags */ int wwbaudmap[]; /* maps stty() baud rate code into number */ int wwbaud; /* wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed] */ 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 wwnupdate, wwnupdline, wwnupdmiss, wwnmajline, wwnmajmiss; int wwnread, wwnreade, wwnreadz, wwnreadc; 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 */ int wwrint(); /* interrupt handler */ struct ww *wwcurwin; /* window to copy input into */ char wwsetjmp; /* want a longjmp() from wwrint() */ jmp_buf wwjmpbuf; /* jmpbuf for above */ 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 wwgetc() (wwibp < wwibq ? *wwibp++ & 0x7f : -1) #define wwpeekc() (wwibp < wwibq ? *wwibp & 0x7f : -1) #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) #define wwinterrupt() (wwibp < wwibq) /* the window virtual terminal */ #define WWT_TERM "TERM=window" #define WWT_TERMCAP "WW|window|window package:\ :cr=^M:nl=^J:bl=^G:\ :al=\\EL:am:le=^H:bs:cd=\\EJ:ce=\\EK:cl=\\EE:cm=\\EY%+ %+ :\ :da:db:dc=\\EN:dl=\\EM:do=\\EB:ei=\\EO:ho=\\EH:im=\\E@:mi:\ :nd=\\EC:ta=^I:pt:up=\\EA:" #define WWT_REV "se=\\Eq:so=\\Ep:" #define WWT_UL "ue=\\Es:us=\\Er:" #define WWT_GRP "ae=\\EG:as=\\EF:" #define WWT_USR "XE=\\EQ:XS=\\EP:" /* our functions */ struct ww *wwopen(); int wwchild(); int wwsuspend(); char **wwalloc(); char *wwerror(); /* c library functions */ char *malloc(); char *calloc(); char *getenv(); char *tgetstr(); char *rindex(); char *strcpy(); char *strcat(); char *sprintf(); #undef MIN #undef MAX #define MIN(x, y) ((x) > (y) ? (y) : (x)) #define MAX(x, y) ((x) > (y) ? (x) : (y))