something something ui

src/lib/ui/elements/RootElement.hx

@@ -0,0 +1,42 @@
+package lib.ui.elements;
+
+class RootElement implements UIElement {
+	private var children:Array<UIElement>;
+	private final eventManager:UIEventManager = new UIEventManager();
+
+	public function new(?children:Array<UIElement>) {
+		if (children == null) {
+			children = [];
+		} else {
+			this.children = children;
+		}
+	}
+
+	public function getEventHandlers():UIEvents {
+		return eventManager.getEventHandlers();
+	}
+
+	public function setChildren(children:Array<UIElement>) {
+		this.children = children;
+	}
+
+	public function render():Canvas {
+		var canvas = new Canvas();
+		var offset = new Pos({x: 0, y: 0});
+
+		this.eventManager.clearMap();
+
+		for (child in children) {
+			var childCanvas = child.render();
+			var bounds = childCanvas.getBounds();
+			bounds.offset(offset);
+
+			this.eventManager.addMapElement(child, bounds);
+			canvas.combine(childCanvas, offset);
+
+			offset = new Pos({x: 0, y: offset.y + bounds.getHight() + 1});
+		}
+
+		return canvas;
+	}
+}