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Implement Widget::draw for custom_widget example

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Héctor Ramón Jiménez 2021-10-18 15:49:28 +07:00
parent 945f69e567
commit 95acc1deb8
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GPG key ID: 140CC052C94F138E
2 changed files with 19 additions and 22 deletions
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1
examples/custom_widget/Cargo.toml
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@ -8,4 +8,3 @@ publish = false
[dependencies]
iced = { path = "../.." }
iced_native = { path = "../../native" }
iced_graphics = { path = "../../graphics" }

40
examples/custom_widget/src/main.rs
View file

@ -9,10 +9,11 @@ mod circle {
// Of course, you can choose to make the implementation renderer-agnostic,
// if you wish to, by creating your own `Renderer` trait, which could be
// implemented by `iced_wgpu` and other renderers.
use iced_graphics::renderer::{self, Renderer};
use iced_graphics::Backend;
use iced_native::layout::{self, Layout};
use iced_native::renderer;
use iced_native::{
layout, Element, Hasher, Layout, Length, Point, Rectangle, Size, Widget,
Background, Color, Element, Hasher, Length, Point, Rectangle, Size,
Widget,
};
pub struct Circle {
@ -25,9 +26,9 @@ mod circle {
}
}
impl<Message, B> Widget<Message, Renderer<B>> for Circle
impl<Message, Renderer> Widget<Message, Renderer> for Circle
where
B: Backend,
Renderer: renderer::Renderer,
{
fn width(&self) -> Length {
Length::Shrink
@ -39,7 +40,7 @@ mod circle {
fn layout(
&self,
_renderer: &Renderer<B>,
_renderer: &Renderer,
_limits: &layout::Limits,
) -> layout::Node {
layout::Node::new(Size::new(self.radius * 2.0, self.radius * 2.0))
@ -53,30 +54,27 @@ mod circle {
fn draw(
&self,
_renderer: &mut Renderer<B>,
renderer: &mut Renderer,
_style: &renderer::Style,
_layout: Layout<'_>,
layout: Layout<'_>,
_cursor_position: Point,
_viewport: &Rectangle,
) {
// (
// Primitive::Quad {
// bounds: layout.bounds(),
// background: Background::Color(Color::BLACK),
// border_radius: self.radius,
// border_width: 0.0,
// border_color: Color::TRANSPARENT,
// },
// mouse::Interaction::default(),
// )
renderer.fill_rectangle(renderer::Quad {
bounds: layout.bounds(),
background: Background::Color(Color::BLACK),
border_radius: self.radius,
border_width: 0.0,
border_color: Color::TRANSPARENT,
});
}
}
impl<'a, Message, B> Into<Element<'a, Message, Renderer<B>>> for Circle
impl<'a, Message, Renderer> Into<Element<'a, Message, Renderer>> for Circle
where
B: Backend,
Renderer: renderer::Renderer,
{
fn into(self) -> Element<'a, Message, Renderer<B>> {
fn into(self) -> Element<'a, Message, Renderer> {
Element::new(self)
}
}