create widgets on demand

OpenRA.Game/Widgets/WidgetLoader.cs

@@ -8,29 +8,57 @@
  */
 #endregion
 
+using System.Linq;
 using System.Collections.Generic;
 using OpenRA.FileFormats;
 using OpenRA.Widgets;
 
 namespace OpenRA
 {
-	class WidgetLoader
+	public class WidgetLoader
 	{
-		public static Widget LoadWidget(MiniYamlNode node)
+		//        foreach( var file in Game.modData.Manifest.ChromeLayout.Select( a => MiniYaml.FromFile( a ) ) )
+		//            foreach( var w in file )
+		//                rootWidget.AddChild( WidgetLoader.LoadWidget( w ) );
+
+		//        rootWidget.Initialize();
+		//        rootWidget.InitDelegates();
+
+		Dictionary<string, MiniYamlNode> widgets = new Dictionary<string, MiniYamlNode>();
+
+		public WidgetLoader( ModData modData )
+		{
+			foreach( var file in modData.Manifest.ChromeLayout.Select( a => MiniYaml.FromFile( a ) ) )
+				foreach( var w in file )
+					widgets.Add( w.Key.Substring( w.Key.IndexOf( '@' ) + 1 ), w );
+		}
+
+		public Widget LoadWidget( Widget parent, string w )
+		{
+			return LoadWidget( parent, widgets[ w ] );
+		}
+
+		public Widget LoadWidget( Widget parent, MiniYamlNode node)
 		{
 			var widget = NewWidget(node.Key);
+			parent.AddChild( widget );
+
+			foreach (var child in node.Value.Nodes)
+				if (child.Key != "Children")
+					FieldLoader.LoadField(widget, child.Key, child.Value.Value);
+
+			widget.Initialize();
+
 			foreach (var child in node.Value.Nodes)
-			{
 				if (child.Key == "Children")
 					foreach (var c in child.Value.Nodes)
-						widget.AddChild(LoadWidget(c));
-				else
-					FieldLoader.LoadField(widget, child.Key, child.Value.Value);
-			}
+						LoadWidget( widget, c);
+
+			widget.PostInit();
 			return widget;
 		}
 
-		static Widget NewWidget(string widgetType)
+		Widget NewWidget(string widgetType)
 		{
 			widgetType = widgetType.Split('@')[0];
 			return Game.CreateObject<Widget>(widgetType + "Widget");