rive_rs/shapes/
triangle.rs

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1// Copyright 2021 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use std::rc::Rc;
6
7use crate::component::Component;
8use crate::component_dirt::ComponentDirt;
9use crate::core::{Core, Object, ObjectRef, OnAdded};
10use crate::shapes::{ParametricPath, Path, PathVertex, StraightVertex};
11
12#[derive(Debug)]
13pub struct Triangle {
14    parametric_path: ParametricPath,
15    vertex1: Rc<StraightVertex>,
16    vertex2: Rc<StraightVertex>,
17    vertex3: Rc<StraightVertex>,
18}
19
20impl ObjectRef<'_, Triangle> {
21    pub fn update(&self, value: ComponentDirt) {
22        if Component::value_has_dirt(value, ComponentDirt::PATH) {
23            let parametric_path = self.cast::<ParametricPath>();
24
25            let width = parametric_path.width();
26            let height = parametric_path.height();
27
28            let ox = -parametric_path.origin_x() * width;
29            let oy = -parametric_path.origin_y() * height;
30
31            let vertex1_ref = ObjectRef::from(&*self.vertex1);
32            vertex1_ref.cast::<PathVertex>().set_x(ox + width * 0.5);
33            vertex1_ref.cast::<PathVertex>().set_y(oy);
34
35            let vertex2_ref = ObjectRef::from(&*self.vertex2);
36            vertex2_ref.cast::<PathVertex>().set_x(ox + width);
37            vertex2_ref.cast::<PathVertex>().set_y(oy + height);
38
39            let vertex3_ref = ObjectRef::from(&*self.vertex3);
40            vertex3_ref.cast::<PathVertex>().set_x(ox);
41            vertex3_ref.cast::<PathVertex>().set_y(oy + height);
42        }
43
44        self.cast::<Path>().update(value);
45    }
46}
47
48impl Core for Triangle {
49    parent_types![(parametric_path, ParametricPath)];
50
51    properties!(parametric_path);
52}
53
54impl OnAdded for ObjectRef<'_, Triangle> {
55    on_added!(ParametricPath);
56}
57
58impl Default for Triangle {
59    fn default() -> Self {
60        let triangle = Self {
61            parametric_path: ParametricPath::default(),
62            vertex1: Rc::new(StraightVertex::default()),
63            vertex2: Rc::new(StraightVertex::default()),
64            vertex3: Rc::new(StraightVertex::default()),
65        };
66
67        let triangle_ref = ObjectRef::from(&triangle);
68        let path = triangle_ref.cast::<Path>();
69
70        path.push_vertex(Object::new(&(triangle.vertex1.clone() as Rc<dyn Core>)));
71        path.push_vertex(Object::new(&(triangle.vertex2.clone() as Rc<dyn Core>)));
72        path.push_vertex(Object::new(&(triangle.vertex3.clone() as Rc<dyn Core>)));
73
74        triangle
75    }
76}
rive_rs/shapes/triangle.rs

rive_rs/shapes/
triangle.rs
