iced_af 0.4.1

The iced application framework project.
Documentation 
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//! Change the appearance of menu bars and their menus.
use super::{Status, StyleFn};
use iced::{Background, Border, Color, Padding, Shadow, Theme, Vector};

/// The appearance of a menu bar and its menus.
#[derive(Debug, Clone, Copy)]
pub struct Style {
    /// The background of the menu bar.
    pub bar_background: Background,
    /// The border of the menu bar.
    pub bar_border: Border,
    /// The shadow of the menu bar.
    pub bar_shadow: Shadow,
    /// Expand the menu bar background
    pub bar_background_expand: Padding,

    /// The background of the menus.
    pub menu_background: Background,
    /// The border of the menus.
    pub menu_border: Border,
    /// The shadow of the menus
    pub menu_shadow: Shadow,
    /// Expand the menu background
    pub menu_background_expand: Padding,

    /// The backgraound of the path
    pub path: Background,
    /// The border of the path
    pub path_border: Border,
}

impl std::default::Default for Style {
    fn default() -> Self {
        Self {
            bar_background: Color::from([0.85; 3]).into(),
            bar_border: Border {
                radius: 8.0.into(),
                ..Default::default()
            },
            bar_shadow: Shadow::default(),
            bar_background_expand: 5.into(),

            menu_background: Color::from([0.85; 3]).into(),
            menu_border: Border {
                radius: 8.0.into(),
                ..Default::default()
            },
            menu_shadow: Shadow {
                color: Color::from([0.0, 0.0, 0.0, 0.5]),
                offset: Vector::ZERO,
                blur_radius: 10.0,
            },
            menu_background_expand: 5.into(),
            path: Color::from([0.3; 3]).into(),
            path_border: Border {
                radius: 6.0.into(),
                ..Default::default()
            },
        }
    }
}

/// The Catalog of a [`Menu`](crate::widgets::menu::Menu).
pub trait Catalog {
    ///Style for the trait to use.
    type Class<'a>;

    /// The default class produced by the [`Catalog`].
    fn default<'a>() -> Self::Class<'a>;

    /// The [`Style`] of a class with the given status.
    fn style(&self, class: &Self::Class<'_>, status: Status) -> Style;
}

impl Catalog for Theme {
    type Class<'a> = StyleFn<'a, Self, Style>;

    fn default<'a>() -> Self::Class<'a> {
        Box::new(primary)
    }

    fn style(&self, class: &Self::Class<'_>, status: Status) -> Style {
        class(self, status)
    }
}

/// The primary theme of a [`Menu`](crate::widgets::menu::Menu).
#[must_use]
pub fn primary(theme: &Theme, _status: Status) -> Style {
    let palette = theme.extended_palette();

    Style {
        bar_background: palette.background.base.color.into(),
        menu_background: palette.background.base.color.into(),
        path: palette.primary.weak.color.into(),
        ..Default::default()
    }
}