1 /*
2 * Copyright 1985, 1986, 1987 by the Massachusetts Institute of Technology
3 *
4 * Permission to use, copy, modify, and distribute this software and its
5 * documentation for any purpose and without fee is hereby granted, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of M.I.T. not be used in advertising
9 * or publicity pertaining to distribution of the software without specific,
10 * written prior permission. M.I.T. makes no representations about the
11 * suitability of this software for any purpose. It is provided "as is"
12 * without express or implied warranty.
13 *
14 * The X Window System is a Trademark of MIT.
15 *
16 */
17
18
19 /*
20 * X10.h - Header definition and support file for the C subroutine
21 * interface library for V10 support routines.
22 */
23 #ifndef _X10_H_
24 #define _X10_H_
25
26 /* Used in XDraw and XDrawFilled */
27
28 typedef struct {
29 short x, y;
30 unsigned short flags;
31 } Vertex;
32
33 /* The meanings of the flag bits. If the bit is 1 the predicate is true */
34
35 #define VertexRelative 0x0001 /* else absolute */
36 #define VertexDontDraw 0x0002 /* else draw */
37 #define VertexCurved 0x0004 /* else straight */
38 #define VertexStartClosed 0x0008 /* else not */
39 #define VertexEndClosed 0x0010 /* else not */
40 /*#define VertexDrawLastPoint 0x0020 */ /* else don't */
41
42 /*
43 The VertexDrawLastPoint option has not been implemented in XDraw and
44 XDrawFilled so it shouldn't be defined.
45 */
46
47 /*
48 * XAssoc - Associations used in the XAssocTable data structure. The
49 * associations are used as circular queue entries in the association table
50 * which is contains an array of circular queues (buckets).
51 */
52 typedef struct _XAssoc {
53 struct _XAssoc *next; /* Next object in this bucket. */
54 struct _XAssoc *prev; /* Previous object in this bucket. */
55 Display *display; /* Display which owns the id. */
56 XID x_id; /* X Window System id. */
57 void *data; /* Pointer to untyped memory. */
58 } XAssoc;
59
60 /*
61 * XAssocTable - X Window System id to data structure pointer association
62 * table. An XAssocTable is a hash table whose buckets are circular
63 * queues of XAssoc's. The XAssocTable is constructed from an array of
64 * XAssoc's which are the circular queue headers (bucket headers).
65 * An XAssocTable consists an XAssoc pointer that points to the first
66 * bucket in the bucket array and an integer that indicates the number
67 * of buckets in the array.
68 */
69 typedef struct {
70 XAssoc *buckets; /* Pointer to first bucket in bucket array.*/
71 int size; /* Table size (number of buckets). */
72 } XAssocTable;
73
74 XAssocTable *XCreateAssocTable(int size);
75 char *XLookUpAssoc(Display *dpy, XAssocTable *table, XID x_id);
76
77 #endif /* _X10_H_ */