| 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_ */ |