Extract SizeChange::from(PresetSize)

niri-config/src/lib.rs

@@ -768,6 +768,15 @@ pub enum PresetSize {
     Fixed(#[knuffel(argument)] i32),
 }
 
+impl From<PresetSize> for SizeChange {
+    fn from(value: PresetSize) -> Self {
+        match value {
+            PresetSize::Proportion(prop) => SizeChange::SetProportion(prop * 100.),
+            PresetSize::Fixed(fixed) => SizeChange::SetFixed(fixed),
+        }
+    }
+}
+
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub struct DefaultPresetSize(pub Option<PresetSize>);
 

src/layout/floating.rs

@@ -677,12 +677,7 @@ impl<W: LayoutElement> FloatingSpace<W> {
         };
 
         let preset = self.options.preset_window_heights[preset_idx];
-        let change = match preset {
-            PresetSize::Proportion(prop) => SizeChange::SetProportion(prop * 100.),
-            PresetSize::Fixed(fixed) => SizeChange::SetFixed(fixed),
-        };
-
-        self.set_window_height(Some(&id), change, true);
+        self.set_window_height(Some(&id), SizeChange::from(preset), true);
 
         let tile = &mut self.tiles[idx];
         tile.floating_preset_height_idx = Some(preset_idx);

src/layout/mod.rs

@@ -862,10 +862,7 @@ impl<W: LayoutElement> Layout<W> {
         activate: ActivateWindow,
     ) -> Option<&Output> {
         let resolved_width = self.resolve_default_width(&window, width, is_floating);
-        let resolved_height = height.map(|h| match h {
-            PresetSize::Proportion(prop) => SizeChange::SetProportion(prop * 100.),
-            PresetSize::Fixed(fixed) => SizeChange::SetFixed(fixed),
-        });
+        let resolved_height = height.map(SizeChange::from);
         let id = window.id().clone();
 
         match &mut self.monitor_set {