buoyant 0.3.0-alpha.2

A library for building and rendering declarative SwiftUI-like UIs in Rust
Documentation 
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use crate::pixel::Interpolate;
use crate::primitives::{Point, Size};
use crate::render::{AnimationDomain, CharacterRender, CharacterRenderTarget};

#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Rect {
    pub origin: Point,
    pub size: Size,
}

impl Rect {
    #[must_use]
    pub fn new(origin: Point, size: Size) -> Self {
        Self { origin, size }
    }
}

impl<C> CharacterRender<C> for Rect {
    fn render(
        &self,
        render_target: &mut impl CharacterRenderTarget<Color = C>,
        style: &C,
        offset: Point,
    ) {
        let origin = self.origin + offset;
        for y in origin.y..origin.y + self.size.height as i16 {
            for x in origin.x..origin.x + self.size.width as i16 {
                render_target.draw_color(Point::new(x, y), style);
            }
        }
    }

    fn join(source: Self, target: Self, domain: &AnimationDomain) -> Self {
        let x = i16::interpolate(source.origin.x, target.origin.x, domain.factor);
        let y = i16::interpolate(source.origin.y, target.origin.y, domain.factor);
        let w = u16::interpolate(source.size.width, target.size.width, domain.factor);
        let h = u16::interpolate(source.size.height, target.size.height, domain.factor);
        Rect::new(Point::new(x, y), Size::new(w, h))
    }
}

#[cfg(feature = "embedded-graphics")]
mod embedded_graphics_impl {
    use embedded_graphics::prelude::PixelColor;
    use embedded_graphics::primitives::{PrimitiveStyle, StyledDrawable as _};
    use embedded_graphics_core::draw_target::DrawTarget;

    use crate::pixel::Interpolate;
    use crate::primitives::{Point, Size};
    use crate::render::{AnimationDomain, EmbeddedGraphicsRender};

    use super::Rect;
    // TODO: not really ideal...reimplement later
    impl<C: PixelColor> EmbeddedGraphicsRender<C> for Rect {
        fn render(&self, render_target: &mut impl DrawTarget<Color = C>, style: &C, offset: Point) {
            let origin = self.origin + offset;
            let eg_rect =
                embedded_graphics::primitives::Rectangle::new(origin.into(), self.size.into());
            _ = eg_rect.draw_styled(&PrimitiveStyle::with_fill(*style), render_target);
        }

        fn join(source: Self, target: Self, domain: &AnimationDomain) -> Self {
            let x = i16::interpolate(source.origin.x, target.origin.x, domain.factor);
            let y = i16::interpolate(source.origin.y, target.origin.y, domain.factor);
            let w = u16::interpolate(source.size.width, target.size.width, domain.factor);
            let h = u16::interpolate(source.size.height, target.size.height, domain.factor);
            Rect::new(Point::new(x, y), Size::new(w, h))
        }
    }
}