in src/platform_impl/ios/app_state.rs [857:882]
fn handle_hidpi_proxy(
event_handler: &mut Box<dyn EventHandler>,
mut control_flow: ControlFlow,
suggested_size: LogicalSize<f64>,
scale_factor: f64,
window_id: id,
) {
let mut size = suggested_size.to_physical(scale_factor);
let new_inner_size = &mut size;
let event = Event::WindowEvent {
window_id: RootWindowId(window_id.into()),
event: WindowEvent::ScaleFactorChanged {
scale_factor,
new_inner_size,
},
};
event_handler.handle_nonuser_event(event, &mut control_flow);
let (view, screen_frame) = get_view_and_screen_frame(window_id);
let physical_size = *new_inner_size;
let logical_size = physical_size.to_logical(scale_factor);
let size = CGSize::new(logical_size);
let new_frame: CGRect = CGRect::new(screen_frame.origin, size);
unsafe {
let () = msg_send![view, setFrame: new_frame];
}
}