freya-core 0.4.0

Reactivity runtime, tree management, accessibility integration, rendering pipeline and more, for Freya
Documentation 
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use std::hash::Hash;

use freya_engine::prelude::*;

use crate::style::color::Color;

/// A shadow cast behind text, with a [`Color`], an `(x, y)` offset and a blur sigma.
///
/// Build it with [`TextShadow::new`]:
///
/// ```
/// # use freya::prelude::*;
/// let shadow = TextShadow::new(Color::BLACK, (1.0, 1.0), 2.0);
/// ```
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
#[derive(Copy, Clone, Debug, PartialEq, Default)]
pub struct TextShadow {
    pub color: Color,
    pub offset: (f32, f32),
    pub blur_sigma: f64,
}

impl Hash for TextShadow {
    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
        self.color.hash(state);
        self.offset.0.to_bits().hash(state);
        self.offset.1.to_bits().hash(state);
        self.blur_sigma.to_bits().hash(state);
    }
}

impl TextShadow {
    /// Create a [`TextShadow`] with the given [`Color`], `(x, y)` offset and blur sigma.
    pub fn new(color: Color, offset: (f32, f32), blur_sigma: f64) -> Self {
        Self {
            color,
            offset,
            blur_sigma,
        }
    }
}

impl From<TextShadow> for SkTextShadow {
    fn from(value: TextShadow) -> Self {
        let color: SkColor = value.color.into();
        SkTextShadow::new(
            color,
            SkPoint::new(value.offset.0, value.offset.1),
            value.blur_sigma,
        )
    }
}