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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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18
graphics/src/renderer.rs
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@ -10,19 +10,23 @@ use iced_native::{Background, Element, Font, Point, Rectangle, Size};
pub use iced_native::renderer::Style;
use std::marker::PhantomData;
/// A backend-agnostic renderer that supports all the built-in widgets.
#[derive(Debug)]
pub struct Renderer<B: Backend> {
pub struct Renderer<B: Backend, Theme> {
backend: B,
primitives: Vec<Primitive>,
theme: PhantomData<Theme>,
}
impl<B: Backend> Renderer<B> {
impl<B: Backend, T> Renderer<B, T> {
/// Creates a new [`Renderer`] from the given [`Backend`].
pub fn new(backend: B) -> Self {
Self {
backend,
primitives: Vec::new(),
theme: PhantomData,
}
}
@ -43,10 +47,12 @@ impl<B: Backend> Renderer<B> {
}
}
impl<B> iced_native::Renderer for Renderer<B>
impl<B, T> iced_native::Renderer for Renderer<B, T>
where
B: Backend,
{
type Theme = T;
fn layout<'a, Message>(
&mut self,
element: &Element<'a, Message, Self>,
@ -114,7 +120,7 @@ where
}
}
impl<B> text::Renderer for Renderer<B>
impl<B, T> text::Renderer for Renderer<B, T>
where
B: Backend + backend::Text,
{
@ -171,7 +177,7 @@ where
}
}
impl<B> image::Renderer for Renderer<B>
impl<B, T> image::Renderer for Renderer<B, T>
where
B: Backend + backend::Image,
{
@ -186,7 +192,7 @@ where
}
}
impl<B> svg::Renderer for Renderer<B>
impl<B, T> svg::Renderer for Renderer<B, T>
where
B: Backend + backend::Svg,
{