More newlines for improved readability (#1880)

* Add blank lines above all `fn`, `impl`, `struct`, etc
* Even newlines between docstringed struct and enum fields
* Improve some documentation

eframe/src/epi.rs

@@ -365,6 +365,7 @@ impl Default for WebOptions {
 pub enum Theme {
     /// Dark mode: light text on a dark background.
     Dark,
+
     /// Light mode: dark text on a light background.
     Light,
 }
@@ -389,10 +390,13 @@ impl Theme {
 pub enum WebGlContextOption {
     /// Force Use WebGL1.
     WebGl1,
+
     /// Force use WebGL2.
     WebGl2,
+
     /// Use WebGl2 first.
     BestFirst,
+
     /// Use WebGl1 first
     CompatibilityFirst,
 }
@@ -714,6 +718,7 @@ pub struct IntegrationInfo {
 pub trait Storage {
     /// Get the value for the given key.
     fn get_string(&self, key: &str) -> Option<String>;
+
     /// Set the value for the given key.
     fn set_string(&mut self, key: &str, value: String);
 
@@ -729,7 +734,9 @@ impl Storage for DummyStorage {
     fn get_string(&self, _key: &str) -> Option<String> {
         None
     }
+
     fn set_string(&mut self, _key: &str, _value: String) {}
+
     fn flush(&mut self) {}
 }
 

eframe/src/native/epi_integration.rs

@@ -354,6 +354,7 @@ impl EpiIntegration {
 
 #[cfg(feature = "persistence")]
 const STORAGE_EGUI_MEMORY_KEY: &str = "egui";
+
 #[cfg(feature = "persistence")]
 const STORAGE_WINDOW_KEY: &str = "window";
 

eframe/src/web/backend.rs

@@ -360,6 +360,7 @@ pub type AppRunnerRef = Arc<Mutex<AppRunner>>;
 
 pub struct AppRunnerContainer {
     pub runner: AppRunnerRef,
+
     /// Set to `true` if there is a panic.
     /// Used to ignore callbacks after a panic.
     pub panicked: Arc<AtomicBool>,
@@ -454,8 +455,10 @@ impl epi::Storage for LocalStorage {
     fn get_string(&self, key: &str) -> Option<String> {
         local_storage_get(key)
     }
+
     fn set_string(&mut self, key: &str, value: String) {
         local_storage_set(key, &value);
     }
+
     fn flush(&mut self) {}
 }