86 lines
2.5 KiB
Rust
86 lines
2.5 KiB
Rust
// Copyright 2023 System76 <info@system76.com>
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// SPDX-License-Identifier: MPL-2.0
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//! Change the apperance of a button.
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use iced_core::{Background, BorderRadius, Color, Vector};
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/// The appearance of a button.
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#[must_use]
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#[derive(Debug, Clone, Copy)]
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pub struct Appearance {
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/// The amount of offset to apply to the shadow of the button.
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pub shadow_offset: Vector,
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/// The [`Background`] of the button.
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pub background: Option<Background>,
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/// The border radius of the button.
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pub border_radius: BorderRadius,
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/// The border width of the button.
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pub border_width: f32,
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/// The border [`Color`] of the button.
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pub border_color: Color,
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/// An outline placed around the border.
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pub outline_width: f32,
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/// The [`Color`] of the outline.
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pub outline_color: Color,
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/// The icon [`Color`] of the button.
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pub icon_color: Option<Color>,
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/// The text [`Color`] of the button.
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pub text_color: Option<Color>,
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}
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impl Appearance {
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// TODO: `BorderRadius` is not `const fn` compatible.
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pub fn new() -> Self {
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Self {
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shadow_offset: Vector::new(0.0, 0.0),
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background: None,
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border_radius: BorderRadius::from(0.0),
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border_width: 0.0,
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border_color: Color::TRANSPARENT,
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outline_width: 0.0,
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outline_color: Color::TRANSPARENT,
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icon_color: None,
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text_color: None,
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}
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}
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}
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impl std::default::Default for Appearance {
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fn default() -> Self {
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Self::new()
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}
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}
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/// A set of rules that dictate the style of a button.
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pub trait StyleSheet {
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/// The supported style of the [`StyleSheet`].
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type Style: Default;
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/// Produces the active [`Appearance`] of a button.
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fn active(&self, focused: bool, style: &Self::Style) -> Appearance;
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/// Produces the disabled [`Appearance`] of a button.
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fn disabled(&self, style: &Self::Style) -> Appearance;
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/// [`Appearance`] when the button is the target of a DND operation.
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fn drop_target(&self, style: &Self::Style) -> Appearance {
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self.hovered(false, style)
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}
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/// Produces the hovered [`Appearance`] of a button.
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fn hovered(&self, focused: bool, style: &Self::Style) -> Appearance;
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/// Produces the pressed [`Appearance`] of a button.
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fn pressed(&self, focused: bool, style: &Self::Style) -> Appearance;
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/// Background color of the selection indicator
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fn selection_background(&self) -> Background;
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}
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