clipper2_sys/double/
poly_tree_d.rs

1use crate::{
2    clipper_delete_pathd, clipper_pathd_size, clipper_polytreed_count, clipper_polytreed_get_child,
3    clipper_polytreed_inv_scale, clipper_polytreed_is_hole, clipper_polytreed_polygon, malloc,
4    ClipperPolyTreeD, PathD, PathsD,
5};
6
7#[derive(Debug)]
8pub struct PolyTreeD {
9    pub(crate) childs: Vec<Self>,
10    pub(crate) is_hole: bool,
11    pub(crate) polygon: PathD,
12    pub(crate) scale: f64,
13}
14
15impl PolyTreeD {
16    pub(crate) fn from(ptr: *mut ClipperPolyTreeD) -> Self {
17        let is_hole: bool;
18        let scale: f64;
19        let polygon: PathD;
20        let childs: Vec<Self>;
21        unsafe {
22            is_hole = clipper_polytreed_is_hole(ptr) == 1;
23            scale = clipper_polytreed_inv_scale(ptr);
24            let mem = malloc(clipper_pathd_size());
25            let polygon_prt = clipper_polytreed_polygon(mem, ptr);
26            polygon = PathD::from(polygon_prt);
27            clipper_delete_pathd(polygon_prt);
28            let count = clipper_polytreed_count(ptr);
29            childs = (0..count)
30                .map(|i| {
31                    let tree_ptr = clipper_polytreed_get_child(ptr, i);
32                    Self::from(tree_ptr as *mut ClipperPolyTreeD)
33                })
34                .collect();
35        }
36        Self {
37            childs: childs,
38            is_hole: is_hole,
39            polygon: polygon,
40            scale: scale,
41        }
42    }
43}
44
45impl PolyTreeD {
46
47    pub fn get_childs(&mut self) -> &mut Vec<Self> {
48        &mut self.childs
49    }
50
51    pub fn is_hole(&self) -> bool {
52        self.is_hole
53    }
54
55    pub fn get_hole_paths(&self) -> PathsD {
56        let mut paths = PathsD::new(&vec![]);
57        for child in &self.childs {
58            if child.is_hole {
59                paths.add_path(child.get_polygon());
60            }
61        }
62        paths
63    }
64
65    pub fn get_polygon(&self) -> PathD {
66        self.polygon.clone()
67    }
68
69    pub fn scale(&self) -> f64 {
70        self.scale
71    }
72}
clipper2_sys/double/poly_tree_d.rs

clipper2_sys/double/
poly_tree_d.rs
