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Viewing changes to shape/shape.h

  • Committer: Bazaar Package Importer
  • Author(s): Stephen M Moraco
  • Date: 2002-02-05 18:52:12 UTC
  • Revision ID: james.westby@ubuntu.com-20020205185212-8i04c70te00rc40y
Tags: upstream-1.7.16
Import upstream version 1.7.16

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