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#ifndef ILSHAPE_H
#define ILSHAPE_H
#include <assert.h>
#include <incr.h> /* import base types */
#if HAVE_VMALLOC || HAVE_AST
#include <vmalloc.h>
#else
#include <stdlib.h>
typedef struct _vmalloc_s Vmalloc_t;
#define vmalloc(arena,request) malloc(request)
#define vmfree(arena,ptr) free(ptr)
#define vmregion(ptr) 0
#endif
typedef enum ilcurvetype_e { IL_SPLINE, IL_POLYLINE, IL_NOCURVE } ilcurvetype_t;
typedef enum ilshapetype_e {
IL_POLYGON, IL_CIRCLE, IL_ELLIPSE, IL_SPLINEGON, IL_NOSHAPE
} ilshapetype_t;
struct ilcurve_s {
ilcurvetype_t type;
int n; /* must be > 0 */
ilcoord_t *p;
} ;
struct ilshape_s {
ilshapetype_t type;
union {
/* this should be ilcurve_t*, but too much code depends ..*/
ilcurve_t curve; /* if polygon, splinegon */
struct {double radius_a, radius_b;} ellipse;
} def;
struct ilshape_s *next;
} ;
ilcoord_t ilcoord(double x, double y);
ilcurve_t *il_newcurve(Vmalloc_t *arena, ilcurvetype_t kind, int npts);
void il_freecurve(Vmalloc_t *arena, ilcurve_t *curve);
ilshape_t *il_newshape(Vmalloc_t *arena, ilcurve_t *contents, ilshape_t *link);
ilshape_t *il_copyshape(Vmalloc_t *arena, ilshape_t *shape);
void il_freeshape(Vmalloc_t *arena, ilshape_t *shape);
ilcurve_t *il_get_bounding_poly(ilshape_t *shape);
ilrect_t il_get_bounding_rect(ilshape_t *shape);
int il_inshape(ilshape_t *shape, ilcoord_t pt); /* 0,1 predicate */
#endif
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