fix(layout): make tab bars more compact

compositor/src/overview.rs

@@ -99,7 +99,7 @@ fn label_font(database: &fontdb::Database, family: &str) -> Option<FontArc> {
 }
 
 type LabelBuffer = (MemoryRenderBuffer, smithay::utils::Size<i32, smithay::utils::Buffer>);
-type LabelStyle = (u64, [u32; 4]);
+type LabelStyle = (u64, u64, [u32; 4]);
 type OverviewStateLabel = HashMap<String, HashMap<LabelStyle, LabelBuffer>>;
 
 #[derive(Debug)]
@@ -247,12 +247,16 @@ impl OverviewState {
         scale: f64,
         color: [f32; 4],
     ) -> Option<(MemoryRenderBuffer, smithay::utils::Size<i32, smithay::utils::Buffer>)> {
-        let key = (scale.to_bits(), color.map(f32::to_bits));
+        self.label_with_size(text, scale, color, 13.0)
+    }
+
+    fn label_with_size(&mut self, text: &str, scale: f64, color: [f32; 4], font_size: f64) -> Option<LabelBuffer> {
+        let key = (scale.to_bits(), font_size.to_bits(), color.map(f32::to_bits));
         if let Some(buffer) = self.labels.get(text).and_then(|styles| styles.get(&key)) {
             return Some(buffer.clone());
         }
         let font = self.font.as_ref()?;
-        let scaled = font.as_scaled((13.0 * scale) as f32);
+        let scaled = font.as_scaled((font_size * scale) as f32);
         let width = (text
             .chars()
             .map(|ch| scaled.h_advance(font.glyph_id(ch)))
@@ -260,7 +264,7 @@ impl OverviewState {
             .ceil() as i32
             + 4)
         .max(1);
-        let height = (18.0 * scale).ceil() as i32;
+        let height = ((font_size + 5.0) * scale).ceil() as i32;
         let mut pixels = vec![0_u8; (width * height * 4) as usize];
         let mut pen = 2.0;
         for ch in text.chars() {
@@ -520,10 +524,20 @@ impl Ferese {
     }
 
     pub(crate) fn overview_window_label(&mut self, id: WindowId, scale: f64, width: f64) -> Option<LabelBuffer> {
+        self.window_title_label(id, scale, width, 13.0)
+    }
+
+    pub(crate) fn window_title_label(
+        &mut self,
+        id: WindowId,
+        scale: f64,
+        width: f64,
+        font_size: f64,
+    ) -> Option<LabelBuffer> {
         let record = self.windows.record(id)?;
         let limit = ((width - 16.0) / 8.0).clamp(1.0, 48.0) as usize;
         let color = self.theme_settings.text_primary_color.0;
-        let style = (scale.to_bits(), color.map(f32::to_bits));
+        let style = (scale.to_bits(), font_size.to_bits(), color.map(f32::to_bits));
 
         if let Some(label) = self.overview.window_labels.get(&id)
             && label.revision == record.metadata_revision
@@ -549,7 +563,7 @@ impl Ferese {
         }
 
         let revision = record.metadata_revision;
-        let buffer = self.overview.label(&text, scale, color)?;
+        let buffer = self.overview.label_with_size(&text, scale, color, font_size)?;
         self.overview.window_labels.insert(
             id,
             WindowLabel {

compositor/src/render/tabs.rs

@@ -40,7 +40,7 @@ pub(super) fn tab_elements(
         .material_radius
         .min(shell.height * 0.5)
         .min(shell.width * 0.5);
-    let inset = 3.0_f64.min(shell.height * 0.25).min(width * 0.25);
+    let inset = 2.0_f64.min(shell.height * 0.25).min(width * 0.25);
     let material = crate::effects::resolve_material(
         crate::effects::SemanticRole::Panel,
         state.theme_settings.material_style,
@@ -68,7 +68,7 @@ pub(super) fn tab_elements(
         if !protected
             && width > 20.0
             && rect.height >= 16.0
-            && let Some((buffer, size)) = state.overview_window_label(id, scale, width)
+            && let Some((buffer, size)) = state.window_title_label(id, scale, width, 12.0)
         {
             let location = Point::<i32, Physical>::from((
                 ((rect.x - f64::from(output_geometry.loc.x)