message: Count redraws and add a couple of TODOs
diff: @@ -39,15 +39,19 @@ pub trait UserInterface {
  let mut cache = Some(iced_winit::Cache::default());
  let mut events = Vec::new();
  + let mut redraws = 0;
  window.request_redraw();
  event_loop.run(move |event, _, control_flow| match event {
  Event::EventsCleared => {
  - // TODO: Once we remove lifetimes from widgets, we will be able
  - // to keep user interfaces alive between events.
  + // TODO: We should find out a way to keep a user interface
  + // 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(
  self.view(),
  cache.take().unwrap(),
  @@ -61,6 +65,8 @@ pub trait UserInterface {
  cache = Some(user_interface.into_cache());
  } else {
  + // When there are messages, we are forced to rebuild twice
  + // for now :^)
  let temp_cache = user_interface.into_cache();
  for message in messages {
  @@ -76,7 +82,7 @@ pub trait UserInterface {
  let _ = user_interface.draw(&mut renderer);
  cache = Some(user_interface.into_cache());
  - };
  + }
  window.request_redraw();
  }
  @@ -84,8 +90,13 @@ pub trait UserInterface {
  event: WindowEvent::RedrawRequested,
  ..
  } => {
  - println!("Redrawing");
  + println!("Redrawing {}", redraws);
  renderer.draw();
  +
  + redraws += 1;
  +
  + // TODO: Handle animations!
  + // Maybe we can use `ControlFlow::WaitUntil` for this.
  }
  Event::WindowEvent {
  event: WindowEvent::CloseRequested,
  