projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 051b1e55 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 | ||
| 7 | #ifndef lint | |
| 8 | static char sccsid[] = "@(#)line.c 5.1 (Berkeley) %G%"; | |
| 9 | #endif not lint | |
| 10 | ||
| 9a5b9963 RC |
11 | /* |
| 12 | * line: draw a line from point 1 to point 2. | |
| 13 | */ | |
| 14 | ||
| 15 | #include "2648.h" | |
| 16 | ||
| 17 | line(x1, y1, x2, y2) | |
| 18 | int x1, y1, x2, y2; | |
| 19 | { | |
| 20 | #ifdef TRACE | |
| 21 | if (trace) | |
| 22 | fprintf(trace, "line((%d, %d), (%d, %d)),", x1, y1, x2, y2); | |
| 23 | #endif | |
| 24 | if (x1==_penx && y1==_peny) { | |
| 25 | /* | |
| 26 | * Get around a bug in the HP terminal where one point | |
| 27 | * lines don't get drawn more than once. | |
| 28 | */ | |
| 29 | move(x1, y1+1); | |
| 30 | sync(); | |
| 31 | } | |
| 32 | move(x1, y1); | |
| 33 | draw(x2, y2); | |
| 34 | } |