buoyant 0.3.0-alpha.2

A library for building and rendering declarative SwiftUI-like UIs in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105

use crate::{
    primitives::Point,
    render::{AnimationDomain, CharacterRender, CharacterRenderTarget},
};

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ShadeSubtree<C, T> {
    pub style: C,
    pub subtree: T,
}

impl<C, T> ShadeSubtree<C, T> {
    pub fn new(style: C, subtree: T) -> Self {
        Self { style, subtree }
    }
}

#[cfg(feature = "embedded-graphics")]
mod embedded_graphics_impl {
    use crate::{pixel::Interpolate, primitives::Point, render::EmbeddedGraphicsRender};

    use super::{AnimationDomain, ShadeSubtree};
    use embedded_graphics::prelude::PixelColor;
    use embedded_graphics_core::draw_target::DrawTarget;

    impl<C: PixelColor + Interpolate, T: EmbeddedGraphicsRender<C>> EmbeddedGraphicsRender<C>
        for ShadeSubtree<C, T>
    {
        fn render(&self, render_target: &mut impl DrawTarget<Color = C>, _: &C, offset: Point) {
            self.subtree.render(render_target, &self.style, offset);
        }

        fn render_animated(
            render_target: &mut impl DrawTarget<Color = C>,
            source: &Self,
            target: &Self,
            _: &C,
            offset: Point,
            config: &AnimationDomain,
        ) {
            let style = Interpolate::interpolate(source.style, target.style, config.factor);
            T::render_animated(
                render_target,
                &source.subtree,
                &target.subtree,
                &style,
                offset,
                config,
            );
        }

        fn join(source: Self, target: Self, config: &AnimationDomain) -> Self {
            Self {
                style: Interpolate::interpolate(source.style, target.style, config.factor),
                subtree: T::join(source.subtree, target.subtree, config),
            }
        }
    }
}

impl<C: Clone, T: CharacterRender<C>> CharacterRender<C> for ShadeSubtree<C, T> {
    fn render(
        &self,
        render_target: &mut impl CharacterRenderTarget<Color = C>,
        _: &C,
        offset: Point,
    ) {
        self.subtree.render(render_target, &self.style, offset);
    }

    fn render_animated(
        render_target: &mut impl CharacterRenderTarget<Color = C>,
        source: &Self,
        target: &Self,
        _: &C,
        offset: Point,

        config: &AnimationDomain,
    ) {
        // TODO: This should be animated, but then I'd need to update all the char types in tests
        // let style = Interpolate::interpolate(source.style, target.style, config.factor);
        // T::render_animated(
        //     render_target,
        //     &source.subtree,
        //     &target.subtree,
        //     &style,
        //     config,
        // );
        T::render_animated(
            render_target,
            &source.subtree,
            &target.subtree,
            &target.style,
            offset,
            config,
        );
    }

    fn join(source: Self, target: Self, config: &AnimationDomain) -> Self {
        Self {
            style: target.style,
            subtree: T::join(source.subtree, target.subtree, config),
        }
    }
}