Round font row heights

crates/egui/src/containers/window.rs

@@ -470,7 +470,7 @@ impl<'open> Window<'open> {
         let (title_bar_height, title_content_spacing) = if with_title_bar {
             let style = ctx.style();
             let spacing = window_margin.top + window_margin.bottom;
-            let height = ctx.fonts(|f| title.font_height(f, &style)) + spacing;
+            let height = ctx.fonts(|f| title.font_height(f, &style)).round() + spacing;
             window_frame.rounding.ne = window_frame.rounding.ne.clamp(0.0, height / 2.0);
             window_frame.rounding.nw = window_frame.rounding.nw.clamp(0.0, height / 2.0);
             (height, spacing)

crates/egui/src/ui.rs

@@ -708,6 +708,7 @@ impl Ui {
     /// The height of text of this text style
     pub fn text_style_height(&self, style: &TextStyle) -> f32 {
         self.fonts(|f| f.row_height(&style.resolve(self.style())))
+            .round()
     }
 
     /// Screen-space rectangle for clipping what we paint in this ui.

crates/egui/src/widget_text.rs

@@ -269,7 +269,7 @@ impl RichText {
         if let Some(family) = &self.family {
             font_id.family = family.clone();
         }
-        fonts.row_height(&font_id)
+        fonts.row_height(&font_id).round()
     }
 
     /// Append to an existing [`LayoutJob`]

crates/egui/src/widgets/button.rs

@@ -204,7 +204,9 @@ impl Widget for Button<'_> {
         }
 
         let space_available_for_image = if let Some(text) = &text {
-            let font_height = ui.fonts(|fonts| text.font_height(fonts, ui.style()));
+            let font_height = ui
+                .fonts(|fonts| text.font_height(fonts, ui.style()))
+                .round();
             Vec2::splat(font_height) // Reasonable?
         } else {
             ui.available_size() - 2.0 * button_padding

crates/egui/src/widgets/text_edit/builder.rs

@@ -487,7 +487,7 @@ impl<'t> TextEdit<'t> {
         let prev_text = text.as_str().to_owned();
 
         let font_id = font_selection.resolve(ui.style());
-        let row_height = ui.fonts(|f| f.row_height(&font_id));
+        let row_height = ui.fonts(|f| f.row_height(&font_id)).round();
         const MIN_WIDTH: f32 = 24.0; // Never make a [`TextEdit`] more narrow than this.
         let available_width = (ui.available_width() - margin.sum().x).at_least(MIN_WIDTH);
         let desired_width = desired_width.unwrap_or_else(|| ui.spacing().text_edit_width);

crates/egui_demo_lib/src/demo/scrolling.rs

@@ -191,7 +191,7 @@ fn huge_content_painter(ui: &mut egui::Ui) {
     ui.add_space(4.0);
 
     let font_id = TextStyle::Body.resolve(ui.style());
-    let row_height = ui.fonts(|f| f.row_height(&font_id)) + ui.spacing().item_spacing.y;
+    let row_height = ui.fonts(|f| f.row_height(&font_id)).round() + ui.spacing().item_spacing.y;
     let num_rows = 10_000;
 
     ScrollArea::vertical()

crates/egui_demo_lib/src/easy_mark/easy_mark_viewer.rs

@@ -162,7 +162,7 @@ fn bullet_point(ui: &mut Ui, width: f32) -> Response {
 
 fn numbered_point(ui: &mut Ui, width: f32, number: &str) -> Response {
     let font_id = TextStyle::Body.resolve(ui.style());
-    let row_height = ui.fonts(|f| f.row_height(&font_id));
+    let row_height = ui.fonts(|f| f.row_height(&font_id)).round();
     let (rect, response) = ui.allocate_exact_size(vec2(width, row_height), Sense::hover());
     let text = format!("{number}.");
     let text_color = ui.visuals().strong_text_color();