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1.1 root 1: /*
2: * @(#)ww.h 3.37 5/2/86
3: */
4:
5: /*
6: * Copyright (c) 1983 Regents of the University of California,
7: * All rights reserved. Redistribution permitted subject to
8: * the terms of the Berkeley Software License Agreement.
9: */
10:
11: #include <sgtty.h>
12: #include <setjmp.h>
13:
14: #define NWW 30 /* maximum number of windows */
15:
16: /* a rectangle */
17: struct ww_dim {
18: int nr; /* number of rows */
19: int nc; /* number of columns */
20: int t, b; /* top, bottom */
21: int l, r; /* left, right */
22: };
23:
24: /* a coordinate */
25: struct ww_pos {
26: int r; /* row */
27: int c; /* column */
28: };
29:
30: /* the window structure */
31: struct ww {
32: /* general flags and states */
33: char ww_state; /* state of window */
34: char ww_oflags; /* wwopen flags */
35:
36: /* information for overlap */
37: struct ww *ww_forw; /* doubly linked list, for overlapping info */
38: struct ww *ww_back;
39: char ww_index; /* the window index, for wwindex[] */
40: char ww_order; /* the overlapping order */
41:
42: /* sizes and positions */
43: struct ww_dim ww_w; /* window size and pos */
44: struct ww_dim ww_b; /* buffer size and pos */
45: struct ww_dim ww_i; /* the part inside the screen */
46: struct ww_pos ww_cur; /* the cursor position, relative to ww_w */
47:
48: /* arrays */
49: char **ww_win; /* the window */
50: union ww_char **ww_buf; /* the buffer */
51: char **ww_fmap; /* map for frame and box windows */
52: short *ww_nvis; /* how many ww_buf chars are visible per row */
53:
54: /* information for wwwrite() and company */
55: char ww_wstate; /* state for outputting characters */
56: char ww_modes; /* current display modes */
57: char ww_insert; /* insert mode */
58: char ww_mapnl; /* map \n to \r\n */
59: char ww_noupdate; /* don't do updates in wwwrite() */
60: char ww_unctrl; /* expand control characters */
61: char ww_nointr; /* wwwrite() not interruptable */
62: char ww_hascursor; /* has fake cursor */
63:
64: /* things for the window process and io */
65: char ww_ispty; /* ww_pty is really a pty, not socket pair */
66: char ww_stopped; /* output stopped */
67: int ww_pty; /* file descriptor of pty or socket pair */
68: int ww_socket; /* other end of socket pair */
69: int ww_pid; /* pid of process, if WWS_HASPROC true */
70: char ww_ttyname[11]; /* "/dev/ttyp?" */
71: char *ww_ob; /* output buffer */
72: char *ww_obe; /* end of ww_ob */
73: char *ww_obp; /* current read position in ww_ob */
74: char *ww_obq; /* current write position in ww_ob */
75:
76: /* things for the user, they really don't belong here */
77: char ww_id; /* the user window id */
78: char ww_center; /* center the label */
79: char ww_hasframe; /* frame it */
80: char *ww_label; /* the user supplied label */
81: struct ww_dim ww_alt; /* alternate position and size */
82: };
83:
84: /* state of a tty */
85: struct ww_tty {
86: struct sgttyb ww_sgttyb;
87: struct tchars ww_tchars;
88: struct ltchars ww_ltchars;
89: int ww_lmode;
90: int ww_ldisc;
91: int ww_fflags;
92: };
93:
94: union ww_char {
95: short c_w; /* as a word */
96: struct {
97: #ifndef mc68000
98: char C_c; /* the character part */
99: char C_m; /* the mode part */
100: #else
101: char C_m; /* the mode part */
102: char C_c; /* the character part */
103: #endif
104: } c_un;
105: };
106: #define c_c c_un.C_c
107: #define c_m c_un.C_m
108:
109: /* parts of ww_char */
110: #define WWC_CMASK 0x00ff
111: #define WWC_MMASK 0xff00
112: #define WWC_MSHIFT 8
113:
114: /* c_m bits */
115: #define WWM_REV 0x01 /* reverse video */
116: #define WWM_BLK 0x02 /* blinking */
117: #define WWM_UL 0x04 /* underlined */
118: #define WWM_GRP 0x08 /* graphics */
119: #define WWM_USR 0x10 /* user specified mode */
120: #define WWM_GLS 0x40 /* window only, glass, i.e. transparent */
121:
122: /* ww_state values */
123: #define WWS_INITIAL 0 /* just opened */
124: #define WWS_HASPROC 1 /* has process on pty */
125: #define WWS_DEAD 3 /* child died */
126:
127: /* flags for ww_fmap */
128: #define WWF_U 0x01
129: #define WWF_R 0x02
130: #define WWF_D 0x04
131: #define WWF_L 0x08
132: #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L)
133: #define WWF_LABEL 0x40
134: #define WWF_TOP 0x80
135:
136: /* flags to wwopen() */
137: #define WWO_PTY 0x01 /* want pty */
138: #define WWO_SOCKET 0x02 /* want socket pair */
139: #define WWO_REVERSE 0x04 /* make it all reverse video */
140: #define WWO_GLASS 0x08 /* make it all glass */
141: #define WWO_FRAME 0x10 /* this is a frame window */
142:
143: /* special ww_index value */
144: #define WWX_NOBODY NWW
145:
146: /* error codes */
147: #define WWE_NOERR 0
148: #define WWE_SYS 1 /* system error */
149: #define WWE_NOMEM 2 /* out of memory */
150: #define WWE_TOOMANY 3 /* too many windows */
151: #define WWE_NOPTY 4 /* no more ptys */
152: #define WWE_SIZE 5 /* bad window size */
153: #define WWE_BADTERM 6 /* bad terminal type */
154: #define WWE_CANTDO 7 /* dumb terminal */
155:
156: /* wwtouched[] bits */
157: #define WWU_TOUCHED 0x01 /* touched */
158: #define WWU_MAJOR 0x02 /* major change */
159:
160: /* the window structures */
161: struct ww wwhead;
162: struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */
163: struct ww wwnobody;
164:
165: /* tty things */
166: struct ww_tty wwoldtty; /* the old (saved) terminal settings */
167: struct ww_tty wwnewtty; /* the new (current) terminal settings */
168: struct ww_tty wwwintty; /* the terminal settings for windows */
169: char *wwterm; /* the terminal name */
170: char wwtermcap[1024]; /* place for the termcap */
171: char wwkeys[512]; /* termcap fields for the function keys */
172: char wwwintermcap[1024]; /* termcap for windows */
173:
174: /* generally useful variables */
175: int wwnrow, wwncol; /* the screen size */
176: char wwavailmodes; /* actually supported modes */
177: char wwcursormodes; /* the modes for the fake cursor */
178: char wwwrap; /* terminal has auto wrap around */
179: int wwdtablesize; /* result of getdtablesize() call */
180: char **wwsmap; /* the screen map */
181: union ww_char **wwos; /* the old (current) screen */
182: union ww_char **wwns; /* the new (desired) screen */
183: char *wwtouched; /* wwns changed flags */
184: int wwbaudmap[]; /* maps stty() baud rate code into number */
185: int wwbaud; /* wwbaudmap[wwoldtty.ww_sgttyb.sg_ospeed] */
186: int wwcursorrow, wwcursorcol; /* where we want the cursor to be */
187: int wwerrno; /* error number */
188:
189: /* statistics */
190: int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc;
191: int wwnwwr, wwnwwra, wwnwwrc;
192: int wwnupdate, wwnupdline, wwnupdmiss, wwnmajline, wwnmajmiss;
193: int wwnread, wwnreade, wwnreadz, wwnreadc;
194: int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp;
195: int wwnselect, wwnselecte, wwnselectz;
196:
197: /* quicky macros */
198: #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c))
199: #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c)
200: #define wwunbox(w) wwunframe(w)
201: #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0)
202: #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0)
203: #define wwupdate() wwupdate1(0, wwnrow);
204:
205: /* things for handling input */
206: int wwrint(); /* interrupt handler */
207: struct ww *wwcurwin; /* window to copy input into */
208: char wwsetjmp; /* want a longjmp() from wwrint() */
209: jmp_buf wwjmpbuf; /* jmpbuf for above */
210: char *wwib; /* input (keyboard) buffer */
211: char *wwibe; /* wwib + sizeof buffer */
212: char *wwibp; /* current read position in buffer */
213: char *wwibq; /* current write position in buffer */
214: #define wwgetc() (wwibp < wwibq ? *wwibp++ & 0x7f : -1)
215: #define wwpeekc() (wwibp < wwibq ? *wwibp & 0x7f : -1)
216: #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1)
217: #define wwinterrupt() (wwibp < wwibq)
218:
219: /* the window virtual terminal */
220: #define WWT_TERM "TERM=window"
221: #define WWT_TERMCAP "WW|window|window package:\
222: :cr=^M:nl=^J:bl=^G:\
223: :al=\\EL:am:le=^H:bs:cd=\\EJ:ce=\\EK:cl=\\EE:cm=\\EY%+ %+ :\
224: :da:db:dc=\\EN:dl=\\EM:do=\\EB:ei=\\EO:ho=\\EH:im=\\E@:mi:\
225: :nd=\\EC:ta=^I:pt:up=\\EA:"
226: #define WWT_REV "se=\\Eq:so=\\Ep:"
227: #define WWT_UL "ue=\\Es:us=\\Er:"
228: #define WWT_GRP "ae=\\EG:as=\\EF:"
229: #define WWT_USR "XE=\\EQ:XS=\\EP:"
230:
231: /* our functions */
232: struct ww *wwopen();
233: int wwchild();
234: int wwsuspend();
235: char **wwalloc();
236: char *wwerror();
237:
238: /* c library functions */
239: char *malloc();
240: char *calloc();
241: char *getenv();
242: char *tgetstr();
243: char *rindex();
244: char *strcpy();
245: char *strcat();
246: char *sprintf();
247:
248: #undef MIN
249: #undef MAX
250: #define MIN(x, y) ((x) > (y) ? (y) : (x))
251: #define MAX(x, y) ((x) > (y) ? (x) : (y))
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