app work

src/layout/ui.rs

@@ -170,6 +170,19 @@ impl Ui {
             font_system: &mut self.data.text.font_system,
         }
     }
+
+    pub fn debug(&self, label: &str) {
+        for (id, inst) in &self.data.active {
+            let l = &self.data.widgets.data(id).unwrap().label;
+            if l != label {
+                continue;
+            }
+            println!("\"{label}\" {{");
+            println!("    region: {}", inst.region);
+            println!("    desired_size: {}", inst.desired_size);
+            println!("}}");
+        }
+    }
 }
 
 impl<W: Widget> Index<&WidgetId<W>> for Ui {