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78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/*
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* Copyright 1985, 1986, 1987 by the Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of M.I.T. not be used in advertising
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* or publicity pertaining to distribution of the software without specific,
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* written prior permission. M.I.T. makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* The X Window System is a Trademark of MIT.
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*
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*/
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/*
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* X10.h - Header definition and support file for the C subroutine
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* interface library for V10 support routines.
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*/
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#ifndef _X10_H_
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#define _X10_H_
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/* Used in XDraw and XDrawFilled */
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typedef struct {
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short x, y;
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unsigned short flags;
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} Vertex;
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/* The meanings of the flag bits. If the bit is 1 the predicate is true */
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#define VertexRelative 0x0001 /* else absolute */
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#define VertexDontDraw 0x0002 /* else draw */
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#define VertexCurved 0x0004 /* else straight */
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#define VertexStartClosed 0x0008 /* else not */
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#define VertexEndClosed 0x0010 /* else not */
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/*#define VertexDrawLastPoint 0x0020 */ /* else don't */
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/*
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The VertexDrawLastPoint option has not been implemented in XDraw and
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XDrawFilled so it shouldn't be defined.
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*/
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/*
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* XAssoc - Associations used in the XAssocTable data structure. The
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* associations are used as circular queue entries in the association table
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* which is contains an array of circular queues (buckets).
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*/
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typedef struct _XAssoc {
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struct _XAssoc *next; /* Next object in this bucket. */
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struct _XAssoc *prev; /* Previous object in this bucket. */
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Display *display; /* Display which owns the id. */
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XID x_id; /* X Window System id. */
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void *data; /* Pointer to untyped memory. */
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} XAssoc;
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/*
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* XAssocTable - X Window System id to data structure pointer association
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* table. An XAssocTable is a hash table whose buckets are circular
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* queues of XAssoc's. The XAssocTable is constructed from an array of
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* XAssoc's which are the circular queue headers (bucket headers).
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* An XAssocTable consists an XAssoc pointer that points to the first
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* bucket in the bucket array and an integer that indicates the number
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* of buckets in the array.
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*/
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typedef struct {
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XAssoc *buckets; /* Pointer to first bucket in bucket array.*/
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int size; /* Table size (number of buckets). */
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} XAssocTable;
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XAssocTable *XCreateAssocTable(int size);
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char *XLookUpAssoc(Display *dpy, XAssocTable *table, XID x_id);
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#endif /* _X10_H_ */
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