View plugins

examples/hello_world.rs

@@ -8,6 +8,7 @@ pub fn main() {
 #[component]
 fn App(cx: &Arc<Context>) -> View {
     rsx! {
+        impl my_center(11, 1)
         Card { content: "Hello World".to_string() }
     }
     .view(&cx)
@@ -22,3 +23,9 @@ fn Card(cx: &Arc<Context>, content: String) -> View {
     }
     .view(&cx)
 }
+
+fn my_center(ctx: &mut DrawContext, view: View, w: u16, h: u16) {
+    let (x, y) = ((ctx.area.width - w) / 2, (ctx.area.height - h) / 2);
+    let area = ctx.allocate(x, y, w, h);
+    ctx.draw_view(area, view);
+}