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2  *
3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
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5  * Permission is hereby granted, free of charge, to any person obtaining a
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26 
27 #ifndef POLYGON_H
28 #define POLYGON_H
29 
30 #include "VG/openvg.h"
31 
32 struct polygon;
33 struct vg_context;
34 struct vg_paint;
35 struct array;
36 
37 struct polygon *polygon_create(int size);
38 struct polygon *polygon_create_from_data(float *data, int size);
39 void            polygon_destroy(struct polygon *poly);
40 
41 void            polygon_resize(struct polygon *poly, int new_size);
42 int             polygon_size(struct polygon *poly);
43 
44 int             polygon_vertex_count(struct polygon *poly);
45 float *         polygon_data(struct polygon *poly);
46 
47 void            polygon_vertex_append(struct polygon *p,
48                                       float x, float y);
49 void            polygon_append_polygon(struct polygon *dst,
50                                        struct polygon *src);
51 void            polygon_set_vertex(struct polygon *p, int idx,
52                                    float x, float y);
53 void            polygon_vertex(struct polygon *p, int idx,
54                                float *vertex);
55 
56 void            polygon_bounding_rect(struct polygon *p,
57                                       float *rect);
58 int             polygon_contains_point(struct polygon *p,
59                                        float x, float y);
60 
61 VGboolean       polygon_is_closed(struct polygon *p);
62 
63 void polygon_fill(struct polygon *p, struct vg_context *pipe);
64 
65 /* TODO: make a file/module around this struct
66  */
67 struct polygon_array {
68    struct array *array;
69    VGfloat min_x, max_x;
70    VGfloat min_y, max_y;
71 };
72 
73 void polygon_array_fill(struct polygon_array *polyarray, struct vg_context *ctx);
74 
75 #endif
76