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Make widgets generic over global state

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This commit is contained in:
Joscha 2024-03-07 16:34:10 +01:00
parent 715be147f9
commit fe33465564
3 changed files with 40 additions and 30 deletions
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23
showbits-common/src/widget.rs
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@ -2,22 +2,29 @@ use taffy::{AvailableSpace, Size};
use crate::{Node, View};
pub trait Widget {
pub trait Widget<C> {
#[allow(unused_variables)]
fn size(&mut self, known: Size<Option<f32>>, available: Size<AvailableSpace>) -> Size<f32> {
fn size(
&mut self,
ctx: &mut C,
known: Size<Option<f32>>,
available: Size<AvailableSpace>,
) -> Size<f32> {
Size::ZERO
}
fn draw_below(&mut self, view: &mut View<'_>) -> anyhow::Result<()>;
fn draw_above(&mut self, view: &mut View<'_>) -> anyhow::Result<()>;
fn draw_below(&mut self, ctx: &mut C, view: &mut View<'_>) -> anyhow::Result<()>;
fn draw_above(&mut self, ctx: &mut C, view: &mut View<'_>) -> anyhow::Result<()>;
}
pub trait WidgetExt {
fn node(self) -> Node;
pub type BoxedWidget<C> = Box<dyn Widget<C>>;
pub trait WidgetExt<C> {
fn node(self) -> Node<C>;
}
impl<W: Widget + 'static> WidgetExt for W {
fn node(self) -> Node {
impl<C, W: Widget<C> + 'static> WidgetExt<C> for W {
fn node(self) -> Node<C> {
Node::empty().widget(self)
}
}