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/* Copyright (C) 2004-2011 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _EDGELIST2_H
#define _EDGELIST2_H
#include "splinefont.h"
typedef struct monotonic {
Spline *s;
extended tstart, tend;
struct monotonic *next, *prev; /* along original contour */
uint8 xup; /* increasing t => increasing x */
uint8 yup;
unsigned int isneeded : 1;
unsigned int isunneeded : 1;
unsigned int mutual_collapse : 1;
unsigned int exclude : 1;
struct intersection *start;
struct intersection *end;
DBounds b;
extended other, t;
struct monotonic *linked; /* singly linked list of all monotonic*/
/* segments, no contour indication */
double when_set; /* Debugging */
struct preintersection *pending;
} Monotonic;
extern void FreeMonotonics(Monotonic *m);
extern Monotonic *SSsToMContours(SplineSet *spl, enum overlap_type ot);
/* overlap_type controls whether we look at selected splinesets or all splinesets */
extern int MonotonicFindAt(Monotonic *ms,int which, extended test, Monotonic **space );
#endif /* _EDGELIST2_H */
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