Improve default font height based on #5809

Author: lucasmerlin

crates/egui/src/widget_layout.rs

@@ -1,4 +1,6 @@
-use crate::{Frame, Id, Image, Response, Sense, Style, TextStyle, Ui, Widget, WidgetText};
+use crate::{
+    FontSelection, Frame, Id, Image, Response, Sense, Style, TextStyle, Ui, Widget, WidgetText,
+};
 use ahash::HashMap;
 use emath::{Align2, NumExt, Rect, Vec2};
 use epaint::{Color32, Fonts, Galley};
@@ -112,6 +114,12 @@ impl<'a> WidgetLayout<'a> {
             preferred_width += gap_space;
         }
 
+        let default_font_height = || {
+            let font_selection = FontSelection::default();
+            let font_id = font_selection.resolve(ui.style());
+            ui.fonts(|f| f.row_height(&font_id))
+        };
+
         let max_font_size = ui
             .fonts(|fonts| {
                 atomics
@@ -120,7 +128,7 @@ impl<'a> WidgetLayout<'a> {
                     .filter_map(|a| a.get_min_height_for_image(fonts, ui.style()))
                     .max_by(|a, b| a.partial_cmp(b).unwrap_or(std::cmp::Ordering::Equal))
             })
-            .unwrap_or_else(|| ui.text_style_height(&TextStyle::Body));
+            .unwrap_or_else(default_font_height);
 
         for ((idx, item)) in atomics.0.into_iter().enumerate() {
             if item.shrink {