common/Xregion/Xutil.h

/***********************************************************

Copyright 1987, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
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all copies or substantial portions of the Software.

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Except as contained in this notice, the name of The Open Group shall not be
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in this Software without prior written authorization from The Open Group.


Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/

#ifndef _X11_XUTIL_H_
#define _X11_XUTIL_H_

/* You must include <X11/Xlib.h> before including this file */
#include "Xlib.h"


/*
 * opaque reference to Region data type
 */
typedef struct _XRegion *Region;

/* Return values from XRectInRegion() */

#define RectangleOut 0
#define RectangleIn  1
#define RectanglePart 2

extern int XClipBox(
    Region		/* r */,
    XRectangle*		/* rect_return */
);

extern Region XCreateRegion(
    void
);

extern int XDestroyRegion(
    Region		/* r */
);

extern int XEmptyRegion(
    Region		/* r */
);

extern int XEqualRegion(
    Region		/* r1 */,
    Region		/* r2 */
);

extern int XIntersectRegion(
    Region		/* sra */,
    Region		/* srb */,
    Region		/* dr_return */
);

extern int XOffsetRegion(
    Region		/* r */,
    int			/* dx */,
    int			/* dy */
);

extern Bool XPointInRegion(
    Region		/* r */,
    int			/* x */,
    int			/* y */
);

extern Region XPolygonRegion(
    XPoint*		/* points */,
    int			/* n */,
    int			/* fill_rule */
);

extern int XRectInRegion(
    Region		/* r */,
    int			/* x */,
    int			/* y */,
    unsigned int	/* width */,
    unsigned int	/* height */
);

extern int XShrinkRegion(
    Region		/* r */,
    int			/* dx */,
    int			/* dy */
);

extern int XSubtractRegion(
    Region		/* sra */,
    Region		/* srb */,
    Region		/* dr_return */
);

extern int XUnionRectWithRegion(
    XRectangle*		/* rectangle */,
    Region		/* src_region */,
    Region		/* dest_region_return */
);

extern int XUnionRegion(
    Region		/* sra */,
    Region		/* srb */,
    Region		/* dr_return */
);

extern int XXorRegion(
    Region		/* sra */,
    Region		/* srb */,
    Region		/* dr_return */
);

#endif /* _X11_XUTIL_H_ */