/misc/src/release/graphviz-2.18-1/src/graphviz-2.18/lib/common/macros.h

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00001 /* $Id: macros.h,v 1.16 2006/12/07 22:49:35 erg Exp $ $Revision: 1.16 $ */
00002 /* vim:set shiftwidth=4 ts=8: */
00003 
00004 /**********************************************************
00005 *      This software is part of the graphviz package      *
00006 *                http://www.graphviz.org/                 *
00007 *                                                         *
00008 *            Copyright (c) 1994-2004 AT&T Corp.           *
00009 *                and is licensed under the                *
00010 *            Common Public License, Version 1.0           *
00011 *                      by AT&T Corp.                      *
00012 *                                                         *
00013 *        Information and Software Systems Research        *
00014 *              AT&T Research, Florham Park NJ             *
00015 **********************************************************/
00016 
00017 #ifndef GV_MACROS_H
00018 #define GV_MACROS_H
00019 
00020 #ifndef NOTUSED
00021 #define NOTUSED(var) (void) var
00022 #endif
00023 
00024 #define isPinned(n)     (ND_pinned(n) == P_PIN)
00025 #define hasPos(n)       (ND_pinned(n) > 0)
00026 #define isFixed(n)      (ND_pinned(n) > P_SET)
00027 
00028 #define SET_CLUST_NODE(n) (ND_clustnode(n) = TRUE)
00029 #define IS_CLUST_NODE(n)  (ND_clustnode(n))
00030 #define HAS_CLUST_EDGE(g) (GD_flags(g) & 1)
00031 #define SET_CLUST_EDGE(g) (GD_flags(g) |= 1)
00032 #define EDGE_TYPE(g) (GD_flags(g) & (7 << 1))
00033 
00034 #define SET_RANKDIR(g,rd) ((g)->u.rankdir = (rd))
00035 
00036 #ifndef streq
00037 #define streq(a,b)              (*(a)==*(b)&&!strcmp(a,b))
00038 #endif
00039 
00040 #define XPAD(d) ((d).x += 4*GAP)
00041 #define YPAD(d) ((d).y += 2*GAP)
00042 #define PAD(d)  {XPAD(d); YPAD(d);}
00043 
00044 #define OTHERDIR(dir) ((dir == CCW) ? CW : CCW)
00045 
00046 #define NEXTSIDE(side, dir) ((dir == CCW) ? \
00047                 ((side & 0x8) ? BOTTOM : (side << 1)) : \
00048                 ((side & 0x1) ? LEFT : (side >> 1)))
00049 
00050 #endif

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