Separated allocation

src/main.rs

@@ -1,13 +1,10 @@
-use pulse_ui::layout::{LayoutItem, Rect, Size};
+use pulse_ui::layout::{LayoutItem, Rect, Size, layout};
 
 fn main() {
-    let layout = LayoutItem::Columns {
-        unit: Size::Percent(100),
-        items: vec![
-            LayoutItem::Widget(Size::Flex(16)),
-            LayoutItem::Widget(Size::Flex(9)),
-        ],
-    };
+    let layout = layout(vec![
+        LayoutItem::Widget(Size::Flex(16)),
+        LayoutItem::Widget(Size::Flex(9)),
+    ]);
 
     let screen = Rect {
         x: 0,
@@ -16,9 +13,5 @@ fn main() {
         height: 3000,
     };
 
-    let mut layout_alloc = Vec::new();
-
-    layout.allocate(&screen, &mut layout_alloc);
-
-    println!("{:?}", layout_alloc);
+    println!("{:?}", screen.allocate(&layout));
 }