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Count redraws and add a couple of TODOs

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This commit is contained in:
Héctor Ramón Jiménez 2019-10-04 22:46:57 +02:00
parent ebb8dbb065
commit 5204cc8c8b
1 changed files with 16 additions and 5 deletions
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21
src/lib.rs
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@ -39,15 +39,19 @@ pub trait UserInterface {
let mut cache = Some(iced_winit::Cache::default()); let mut cache = Some(iced_winit::Cache::default());
let mut events = Vec::new(); let mut events = Vec::new();
let mut redraws = 0;
window.request_redraw(); window.request_redraw();
event_loop.run(move |event, _, control_flow| match event { event_loop.run(move |event, _, control_flow| match event {
Event::EventsCleared => { Event::EventsCleared => {
// TODO: Once we remove lifetimes from widgets, we will be able // TODO: We should find out a way to keep a user interface
// to keep user interfaces alive between events. // alive between events while still being able to drop it and
// rebuild it only when a message is handled.
// //
// This will allow us to only rebuild when a message is handled. // The borrow checker does not seem to like it when I try this,
// even though I am not technically double borrowing at any
// point.
let mut user_interface = iced_winit::UserInterface::build( let mut user_interface = iced_winit::UserInterface::build(
self.view(), self.view(),
cache.take().unwrap(), cache.take().unwrap(),
@ -61,6 +65,8 @@ pub trait UserInterface {
cache = Some(user_interface.into_cache()); cache = Some(user_interface.into_cache());
} else { } else {
// When there are messages, we are forced to rebuild twice
// for now :^)
let temp_cache = user_interface.into_cache(); let temp_cache = user_interface.into_cache();
for message in messages { for message in messages {
@ -76,7 +82,7 @@ pub trait UserInterface {
let _ = user_interface.draw(&mut renderer); let _ = user_interface.draw(&mut renderer);
cache = Some(user_interface.into_cache()); cache = Some(user_interface.into_cache());
}; }
window.request_redraw(); window.request_redraw();
} }
@ -84,8 +90,13 @@ pub trait UserInterface {
event: WindowEvent::RedrawRequested, event: WindowEvent::RedrawRequested,
.. ..
} => { } => {
println!("Redrawing"); println!("Redrawing {}", redraws);
renderer.draw(); renderer.draw();
redraws += 1;
// TODO: Handle animations!
// Maybe we can use `ControlFlow::WaitUntil` for this.
} }
Event::WindowEvent { Event::WindowEvent {
event: WindowEvent::CloseRequested, event: WindowEvent::CloseRequested,