Merge branch 'master' into feature/panes-widget

This commit is contained in:
Héctor Ramón Jiménez 2020-03-10 06:12:06 +01:00
commit e4fbca59b4
15 changed files with 231 additions and 94 deletions

View file

@ -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.
///
@ -24,8 +22,8 @@ pub struct Cache<T: Drawable> {
enum State {
Empty,
Filled {
mesh: Arc<triangle::Mesh2D>,
bounds: Size,
primitive: Arc<Primitive>,
},
}
@ -74,28 +72,28 @@ 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
}
}