rive_rs/
drawable.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::core::{Core, Object, ObjectRef, OnAdded, Property};
6use crate::draw_rules::DrawRules;
7use crate::dyn_vec::DynVec;
8use crate::math::Mat;
9use crate::node::Node;
10use crate::option_cell::OptionCell;
11use crate::shapes::paint::BlendMode;
12use crate::shapes::{ClippingShape, CommandPath, CommandPathBuilder, Shape};
13use crate::Renderer;
14
15#[derive(Debug)]
16pub struct Drawable {
17    node: Node,
18    blend_mode: Property<BlendMode>,
19    drawable_flags: Property<u64>,
20    clipping_shapes: DynVec<Object<ClippingShape>>,
21    pub(crate) flattened_draw_rules: OptionCell<Object<DrawRules>>,
22    pub(crate) prev: OptionCell<Object<Self>>,
23    pub(crate) next: OptionCell<Object<Self>>,
24}
25
26impl ObjectRef<'_, Drawable> {
27    pub fn blend_mode(&self) -> BlendMode {
28        self.blend_mode.get()
29    }
30
31    pub fn set_blend_mode(&self, blend_mode: BlendMode) {
32        self.blend_mode.set(blend_mode);
33    }
34
35    pub fn drawable_flags(&self) -> u64 {
36        self.drawable_flags.get()
37    }
38
39    pub fn set_drawable_flags(&self, drawable_flags: u64) {
40        self.drawable_flags.set(drawable_flags);
41    }
42}
43
44impl ObjectRef<'_, Drawable> {
45    pub fn push_clipping_shape(&self, clipping_shape: Object<ClippingShape>) {
46        self.clipping_shapes.push(clipping_shape);
47    }
48
49    pub fn clip(&self) -> Option<CommandPath> {
50        self.clipping_shapes
51            .iter()
52            .fold(None, |mut option, clipping_shape| {
53                let builder = option.get_or_insert_with(CommandPathBuilder::new);
54
55                clipping_shape.as_ref().with_command_path(|path| {
56                    if let Some(path) = path {
57                        builder.path(path, None);
58                    }
59                });
60
61                option
62            })
63            .map(|builder| builder.build())
64    }
65
66    pub fn draw(&self, renderer: &mut impl Renderer, transform: Mat) {
67        if let Some(shape) = self.try_cast::<Shape>() {
68            return shape.draw(renderer, transform);
69        }
70
71        unreachable!()
72    }
73}
74
75impl Core for Drawable {
76    parent_types![(node, Node)];
77
78    properties![(23, blend_mode, set_blend_mode), (129, drawable_flags, set_drawable_flags), node];
79}
80
81impl OnAdded for ObjectRef<'_, Drawable> {
82    on_added!(Node);
83}
84
85impl Default for Drawable {
86    fn default() -> Self {
87        Self {
88            node: Node::default(),
89            blend_mode: Property::new(BlendMode::SrcOver),
90            drawable_flags: Property::new(0),
91            clipping_shapes: DynVec::new(),
92            flattened_draw_rules: OptionCell::new(),
93            prev: OptionCell::new(),
94            next: OptionCell::new(),
95        }
96    }
97}
rive_rs/drawable.rs

rive_rs/
drawable.rs
