wip: tui cleanup

crates/tek_core/src/component/layered.rs

@@ -0,0 +1,20 @@
+use crate::*;
+
+pub struct Layered<'a, E: Engine>(pub Collection<'a, E>);
+
+impl<'a, E: Engine> Layered<'a, E> {
+    pub fn new () -> Self {
+        Self(Collection::new())
+    }
+}
+
+impl<'a, E: Engine> Collect<'a, E> for Layered<'a, E> {
+    fn add_box (mut self, item: Box<dyn Render<E> + 'a>) -> Self {
+        self.0 = self.0.add_box(item);
+        self
+    }
+    fn add_ref (mut self, item: &'a dyn Render<E>) -> Self {
+        self.0 = self.0.add_ref(item);
+        self
+    }
+}