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-rw-r--r--wgpu/src/widget/canvas/layer/cache.rs34
1 files changed, 22 insertions, 12 deletions
diff --git a/wgpu/src/widget/canvas/layer/cache.rs b/wgpu/src/widget/canvas/layer/cache.rs
index 3071cce0..f7002459 100644
--- a/wgpu/src/widget/canvas/layer/cache.rs
+++ b/wgpu/src/widget/canvas/layer/cache.rs
@@ -1,12 +1,10 @@
use crate::{
canvas::{Drawable, Frame, Layer},
- triangle,
+ Primitive,
};
use iced_native::Size;
-use std::cell::RefCell;
-use std::marker::PhantomData;
-use std::sync::Arc;
+use std::{cell::RefCell, marker::PhantomData, sync::Arc};
/// A simple cache that stores generated geometry to avoid recomputation.
///
@@ -21,12 +19,11 @@ pub struct Cache<T: Drawable> {
state: RefCell<State>,
}
-#[derive(Debug)]
enum State {
Empty,
Filled {
- mesh: Arc<triangle::Mesh2D>,
bounds: Size,
+ primitive: Arc<Primitive>,
},
}
@@ -75,27 +72,40 @@ impl<'a, T> Layer for Bind<'a, T>
where
T: Drawable + std::fmt::Debug,
{
- fn draw(&self, current_bounds: Size) -> Arc<triangle::Mesh2D> {
+ fn draw(&self, current_bounds: Size) -> Arc<Primitive> {
use std::ops::Deref;
- if let State::Filled { mesh, bounds } =
+ if let State::Filled { bounds, primitive } =
self.cache.state.borrow().deref()
{
if *bounds == current_bounds {
- return mesh.clone();
+ return primitive.clone();
}
}
let mut frame = Frame::new(current_bounds.width, current_bounds.height);
self.input.draw(&mut frame);
- let mesh = Arc::new(frame.into_mesh());
+ let primitive = Arc::new(frame.into_primitive());
*self.cache.state.borrow_mut() = State::Filled {
- mesh: mesh.clone(),
bounds: current_bounds,
+ primitive: primitive.clone(),
};
- mesh
+ primitive
+ }
+}
+
+impl std::fmt::Debug for State {
+ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+ match self {
+ State::Empty => write!(f, "Empty"),
+ State::Filled { primitive, bounds } => f
+ .debug_struct("Filled")
+ .field("primitive", primitive)
+ .field("bounds", bounds)
+ .finish(),
+ }
}
}