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Draft first-class Theme support

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RFC: https://github.com/iced-rs/rfcs/pull/6
This commit is contained in:
Héctor Ramón Jiménez 2022-05-14 01:47:55 +02:00
parent 5de337f214
commit 664251f3f5
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GPG key ID: 140CC052C94F138E
113 changed files with 767 additions and 878 deletions
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46
style/src/button.rs
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@ -27,10 +27,12 @@ impl std::default::Default for Style {
/// A set of rules that dictate the style of a button.
pub trait StyleSheet {
fn active(&self) -> Style;
type Variant;
fn hovered(&self) -> Style {
let active = self.active();
fn active(&self, variant: Self::Variant) -> Style;
fn hovered(&self, variant: Self::Variant) -> Style {
let active = self.active(variant);
Style {
shadow_offset: active.shadow_offset + Vector::new(0.0, 1.0),
@ -38,15 +40,15 @@ pub trait StyleSheet {
}
}
fn pressed(&self) -> Style {
fn pressed(&self, variant: Self::Variant) -> Style {
Style {
shadow_offset: Vector::default(),
..self.active()
..self.active(variant)
}
}
fn disabled(&self) -> Style {
let active = self.active();
fn disabled(&self, variant: Self::Variant) -> Style {
let active = self.active(variant);
Style {
shadow_offset: Vector::default(),
@ -64,33 +66,3 @@ pub trait StyleSheet {
}
}
}
struct Default;
impl StyleSheet for Default {
fn active(&self) -> Style {
Style {
shadow_offset: Vector::new(0.0, 0.0),
background: Some(Background::Color([0.87, 0.87, 0.87].into())),
border_radius: 2.0,
border_width: 1.0,
border_color: [0.7, 0.7, 0.7].into(),
text_color: Color::BLACK,
}
}
}
impl<'a> std::default::Default for Box<dyn StyleSheet + 'a> {
fn default() -> Self {
Box::new(Default)
}
}
impl<'a, T> From<T> for Box<dyn StyleSheet + 'a>
where
T: StyleSheet + 'a,
{
fn from(style_sheet: T) -> Self {
Box::new(style_sheet)
}
}