Lint vertical spacing in the code (#3224)

* Lint vertical spacing in the code

* Add some vertical spacing for readability

crates/epaint/src/text/font.rs

@@ -78,11 +78,15 @@ impl Default for GlyphInfo {
 pub struct FontImpl {
     name: String,
     ab_glyph_font: ab_glyph::FontArc,
+
     /// Maximum character height
     scale_in_pixels: u32,
+
     height_in_points: f32,
+
     // move each character by this much (hack)
     y_offset: f32,
+
     ascent: f32,
     pixels_per_point: f32,
     glyph_info_cache: RwLock<ahash::HashMap<char, GlyphInfo>>, // TODO(emilk): standard Mutex
@@ -320,8 +324,10 @@ type FontIndex = usize;
 /// Wrapper over multiple [`FontImpl`] (e.g. a primary + fallbacks for emojis)
 pub struct Font {
     fonts: Vec<Arc<FontImpl>>,
+
     /// Lazily calculated.
     characters: Option<BTreeSet<char>>,
+
     replacement_glyph: (FontIndex, GlyphInfo),
     pixels_per_point: f32,
     row_height: f32,

crates/epaint/src/text/text_layout_types.rs

@@ -193,8 +193,10 @@ impl std::hash::Hash for LayoutJob {
 pub struct LayoutSection {
     /// Can be used for first row indentation.
     pub leading_space: f32,
+
     /// Range into the galley text
     pub byte_range: Range<usize>,
+
     pub format: TextFormat,
 }
 
@@ -218,12 +220,18 @@ impl std::hash::Hash for LayoutSection {
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
 pub struct TextFormat {
     pub font_id: FontId,
+
     /// Text color
     pub color: Color32,
+
     pub background: Color32,
+
     pub italics: bool,
+
     pub underline: Stroke,
+
     pub strikethrough: Stroke,
+
     /// If you use a small font and [`Align::TOP`] you
     /// can get the effect of raised text.
     pub valign: Align,