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

egui_extras/src/image.rs

@@ -15,6 +15,7 @@ pub struct RetainedImage {
     texture: Mutex<Option<egui::TextureHandle>>,
     filter: TextureFilter,
 }
+
 impl RetainedImage {
     pub fn from_color_image(debug_name: impl Into<String>, image: ColorImage) -> Self {
         Self {

egui_extras/src/layout.rs

@@ -4,6 +4,7 @@ use egui::{Pos2, Rect, Response, Sense, Ui};
 pub(crate) enum CellSize {
     /// Absolute size in points
     Absolute(f32),
+
     /// Take all available space
     Remainder,
 }
@@ -20,6 +21,7 @@ pub(crate) enum CellSize {
 pub(crate) enum CellDirection {
     /// Cells go from left to right.
     Horizontal,
+
     /// Cells go from top to bottom.
     Vertical,
 }
@@ -55,6 +57,7 @@ impl<'l> StripLayout<'l> {
             cell_layout,
         }
     }
+
     fn cell_rect(&self, width: &CellSize, height: &CellSize) -> Rect {
         Rect {
             min: self.cursor,

egui_extras/src/sizing.rs

@@ -3,8 +3,10 @@
 pub enum Size {
     /// Absolute size in points, with a given range of allowed sizes to resize within.
     Absolute { initial: f32, range: (f32, f32) },
+
     /// Relative size relative to all available space.
     Relative { fraction: f32, range: (f32, f32) },
+
     /// Multiple remainders each get the same space.
     Remainder { range: (f32, f32) },
 }