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Annotation of 43BSDTahoe/usr.lib/lib2648/line.c, revision 1.1

1.1     ! root        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) 4/30/85";
        !             9: #endif not lint
        !            10: 
        !            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: }

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