projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| dca25f5a DF |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | */ | |
| 6 | ||
| b91a4d44 | 7 | #ifndef lint |
| dca25f5a DF |
8 | static char sccsid[] = "@(#)open.c 5.1 (Berkeley) %G%"; |
| 9 | #endif not lint | |
| b91a4d44 RC |
10 | |
| 11 | /* | |
| 12 | * This accepts plot file formats and produces the appropriate plots | |
| 13 | * for dumb terminals. It can also be used for printing terminals and | |
| 14 | * lineprinter listings, although there is no way to specify number of | |
| 15 | * lines and columns different from your terminal. This would be easy | |
| 16 | * to change, and is left as an exercise for the reader. | |
| 17 | */ | |
| 18 | ||
| 19 | #include <signal.h> | |
| 20 | #include "dumb.h" | |
| 21 | ||
| 22 | int minX, rangeX; /* min and range of x */ | |
| 23 | int minY, rangeY; /* min and range of y */ | |
| 24 | int currentx,currenty; | |
| 25 | int COLS,LINES; | |
| 26 | ||
| 27 | /* A very large screen! (probably should use malloc) */ | |
| 28 | char screenmat[MAXCOLS][MAXLINES]; | |
| 29 | ||
| 30 | openpl() | |
| 31 | { | |
| 32 | int closepl(); | |
| 33 | int i, j; | |
| 34 | char *term, *getenv(); | |
| 35 | char bp[1024]; | |
| 36 | ||
| 37 | term = getenv("TERM"); | |
| 38 | tgetent(bp, term); | |
| 39 | ||
| 40 | COLS = tgetnum("co"); | |
| 41 | if (COLS > MAXCOLS) | |
| 42 | COLS = MAXCOLS; | |
| 43 | if (COLS < 0) | |
| 44 | COLS = 48; /* lower bound on # of cols? */ | |
| 45 | COLS--; /* prevent auto wrap */ | |
| 46 | ||
| 47 | LINES = tgetnum("li"); | |
| 48 | if (LINES > MAXLINES) | |
| 49 | LINES = MAXLINES; | |
| 50 | if (LINES < 0) | |
| 51 | LINES = 20; /* lower bound on # of lines? */ | |
| 52 | ||
| 53 | for(i=0; i<COLS; i++) | |
| 54 | for(j=0; j<LINES; j++) | |
| 55 | screenmat[i][j] = ' '; | |
| 56 | ||
| 57 | signal(SIGINT, closepl); | |
| 58 | currentx = currenty = 0; | |
| 59 | } |