rive_rs/shapes/paint/
gradient_stop.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 crate::component::Component;
6use crate::core::{Core, CoreContext, Object, ObjectRef, OnAdded, Property};
7use crate::shapes::paint::{Color32, LinearGradient};
8use crate::status_code::StatusCode;
9
10#[derive(Debug)]
11pub struct GradientStop {
12    component: Component,
13    color: Property<Color32>,
14    position: Property<f32>,
15}
16
17impl ObjectRef<'_, GradientStop> {
18    pub fn color(&self) -> Color32 {
19        self.color.get()
20    }
21
22    pub fn set_color(&self, color: Color32) {
23        if self.color() == color {
24            return;
25        }
26
27        self.color.set(color);
28        self.linear_gradient().as_ref().mark_gradient_dirty();
29    }
30
31    pub fn position(&self) -> f32 {
32        self.position.get()
33    }
34
35    pub fn set_position(&self, position: f32) {
36        if self.position() == position {
37            return;
38        }
39
40        self.position.set(position);
41        self.linear_gradient().as_ref().mark_stops_dirty();
42    }
43}
44
45impl ObjectRef<'_, GradientStop> {
46    fn linear_gradient(&self) -> Object<LinearGradient> {
47        self.cast::<Component>().parent().expect("GradientStop should have a parent").cast()
48    }
49}
50
51impl Core for GradientStop {
52    parent_types![(component, Component)];
53
54    properties![(38, color, set_color), (39, position, set_position), component];
55}
56
57impl OnAdded for ObjectRef<'_, GradientStop> {
58    on_added!([on_added_clean, import], Component);
59
60    fn on_added_dirty(&self, context: &dyn CoreContext) -> StatusCode {
61        let component = self.cast::<Component>();
62
63        let code = component.on_added_dirty(context);
64        if code != StatusCode::Ok {
65            return code;
66        }
67
68        if let Some(linear_gradient) =
69            component.parent().and_then(|parent| parent.try_cast::<LinearGradient>())
70        {
71            linear_gradient.as_ref().push_stop(self.as_object());
72            StatusCode::Ok
73        } else {
74            StatusCode::MissingObject
75        }
76    }
77}
78
79impl Default for GradientStop {
80    fn default() -> Self {
81        Self {
82            component: Component::default(),
83            color: Property::new(Color32::from(0xFFFF_FFFF)),
84            position: Property::new(0.0),
85        }
86    }
87}
rive_rs/shapes/paint/gradient_stop.rs

rive_rs/shapes/paint/
gradient_stop.rs
