Use Evaluator for positioning; Refactoring; Position elements relative to parents; Broke clicks outside of parent rect

OpenRA.FileFormats/Evaluator.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -29,7 +29,6 @@ namespace OpenRA.FileFormats
 					default: s.Push(int.Parse(t)); break;
 				}
 			}
-
 			return s.Pop();
 		}
 
@@ -43,7 +42,6 @@ namespace OpenRA.FileFormats
 		static IEnumerable<string> ToPostfix(IEnumerable<string> toks, Dictionary<string, int> syms)
 		{
 			var s = new Stack<string>();
-
 			foreach (var t in toks)
 			{
 				if (t[0] == '(') s.Push(t);
@@ -53,14 +51,20 @@ namespace OpenRA.FileFormats
 					while ((temp = s.Pop()) != "(") yield return temp;
 				}
 				else if (char.IsNumber(t[0])) yield return t;
-				else if (char.IsLetter(t[0])) yield return syms[t].ToString();
+				else if (char.IsLetter(t[0])) 
+				{
+					if (!syms.ContainsKey(t))
+						throw new InvalidOperationException("Substitution `{0}` undefined".F(t));
+					    
+					yield return syms[t].ToString();;
+				}
 				else
 				{
 					while (s.Count > 0 && Prec[t] <= Prec[s.Peek()]) yield return s.Pop();
 					s.Push(t);
 				}
 			}
-
+			
 			while (s.Count > 0) yield return s.Pop();
 		}
 

OpenRA.Game/Chrome.cs

@@ -134,6 +134,7 @@ namespace OpenRA
 			// Hack around a bug in MiniYaml
 			widgetYaml.Values.FirstOrDefault().Value = widgetYaml.Keys.FirstOrDefault();
 			WidgetLoader.rootWidget = WidgetLoader.LoadWidget(widgetYaml.Values.FirstOrDefault());
+			WidgetLoader.rootWidget.Initialize();
 		}
 
 		List<string> visibleTabs = new List<string>();

OpenRA.Game/Chrome/Widget.cs

@@ -23,44 +23,66 @@ namespace OpenRA.Widgets
 
 		// Calculated internally
 		public Rectangle Bounds;
-		public Rectangle ClickRect;
+		public Rectangle EventBounds;
+		public Widget Parent = null;
 		
 		public virtual void Initialize()
 		{
+			Log.Write("{0} has parent {1}", Id, Parent == null ? "NULL" : Parent.Id);
+			
 			// Evaluate the bounds rectangle
-			Bounds = new Rectangle(int.Parse(X),int.Parse(Y),int.Parse(Width),int.Parse(Height));
-		
+			Rectangle parentBounds = (Parent == null) ? new Rectangle(0,0,Game.viewport.Width,Game.viewport.Height) : Parent.Bounds;
+			
+			Dictionary<string, int> substitutions = new Dictionary<string, int>();
+				substitutions.Add("WINDOW_RIGHT", Game.viewport.Width);
+				substitutions.Add("WINDOW_BOTTOM", Game.viewport.Height);
+				substitutions.Add("PARENT_RIGHT", parentBounds.Width);
+				substitutions.Add("PARENT_BOTTOM", parentBounds.Height);
+			int width = Evaluator.Evaluate(Width, substitutions);
+			int height = Evaluator.Evaluate(Height, substitutions);
+					
+			substitutions.Add("WIDTH", width);
+			substitutions.Add("HEIGHT", height);
+			
+			Bounds = new Rectangle(parentBounds.X + Evaluator.Evaluate(X, substitutions),
+			                       parentBounds.Y + Evaluator.Evaluate(Y, substitutions),
+			                       width,
+			                       height);
 			
 			// Create the clickrect
-			ClickRect = Bounds;	
+			EventBounds = Bounds;	
 			foreach (var child in Children)
-				ClickRect = Rectangle.Union(ClickRect, child.Bounds);
+			{
+				child.Initialize();
+				EventBounds = Rectangle.Union(EventBounds, child.Bounds);
+			}
 
 		}
 		
+		public virtual void UpdateEventBounds()
+		{
+			EventBounds = Bounds;
+			foreach (var child in Children)
+				EventBounds = Rectangle.Union(EventBounds, child.Bounds);
+			
+			Parent.UpdateEventBounds();
+		}
+		
 		public virtual bool HandleInput(MouseInput mi)
 		{
-			if (!Visible)
+			// Are we able to handle this event?
+			if (!Visible || !EventBounds.Contains(mi.Location.X,mi.Location.Y))
 				return false;
 			
-			// Do any of our children handle this?
-			bool caught = false;
-			if (ClickRect.Contains(mi.Location.X,mi.Location.Y))
+			// Can any of our children handle this?
+			foreach (var child in Children)
 			{
-				foreach (var child in Children)
-				{
-					caught = child.HandleInput(mi);
-					if (caught)
-						break;
-				}
+				if (child.HandleInput(mi))
+					return true;
 			}
-			
-			// Child has handled the event
-			if (caught)
-				return true;
-						
+
 			// Mousedown
-			if (Delegate != null && mi.Event == MouseInputEvent.Down && ClickRect.Contains(mi.Location.X,mi.Location.Y))
+			if (Delegate != null && mi.Event == MouseInputEvent.Down)
 			{
 				foreach (var mod in Game.ModAssemblies)
 				{
@@ -84,6 +106,9 @@ namespace OpenRA.Widgets
 		
 		public void AddChild(Widget child)
 		{
+			child.Parent = this;
+			Log.Write("{0} setting parent {1}", child.Id, Id);
+
 			Children.Add( child );
 		}
 		

OpenRA.Game/Chrome/WidgetLoader.cs

@@ -30,10 +30,9 @@ namespace OpenRA
 				else
 					FieldLoader.LoadField( widget, child.Key, child.Value );
 			}
-			widget.Initialize();
 			return widget;
 		}
-	
+			
 		static Widget NewWidget( string widgetType )
 		{
 			if( widgetType.Contains( "@" ) )

mods/cnc/menus.yaml

@@ -2,39 +2,39 @@ Container:
 	Children:
 		Background@MAINMENU_BG:
 			Id:MAINMENU_BG
-			X:400
+			X:WINDOW_RIGHT/2 - 125
 			Y:200
 			Width:250
 			Height:200
 			Children:
-				Label@MAINMENDelegateU_LABEL_TITLE:
+				Label@MAINMENU_LABEL_TITLE:
 					Id:MAINMENU_LABEL_TITLE
-					X:445
-					Y:220
-					Width:160
+					X:0
+					Y:20
+					Width:250
 					Height:25
 					Text:OpenRA Main Menu
 					Align:Center
 				Button@MAINMENU_BUTTON_JOIN:
 					Id:MAINMENU_BUTTON_JOIN
-					X:445
-					Y:270
+					X:45
+					Y:70
 					Width:160
 					Height:25
 					Text:Join Game
 					Delegate:MainMenuButtonsDelegate
 				Button@MAINMENU_BUTTON_CREATE:
 					Id:MAINMENU_BUTTON_CREATE
-					X:445
-					Y:305
+					X:45
+					Y:110
 					Width:160
 					Height:25
 					Text:Create Game
 					Delegate:MainMenuButtonsDelegate
 				Button@MAINMENU_BUTTON_QUIT:
 					Id:MAINMENU_BUTTON_QUIT
-					X:445
-					Y:340
+					X:45
+					Y:150
 					Width:160
 					Height:25
 					Text:Quit
@@ -49,37 +49,37 @@ Container:
 			Children:
 				Label@CREATESERVER_LABEL_TITLE:
 					Id:CREATESERVER_LABEL_TITLE
-					X:445
-					Y:220
-					Width:160
+					X:0
+					Y:20
+					Width:250
 					Height:25
 					Text:Create Server
 					Align:Center
 				Button@CREATESERVER_CHECKBOX_HIDDEN:
 					Id:CREATESERVER_CHECKBOX_HIDDEN
-					X:400
-					Y:260
+					X:100
+					Y:60
 					Width:20
 					Height:20
 				Label@CREATESERVER_LABEL_HIDDENGAME:
 					Id:CREATESERVER_LABEL_HIDDENGAME
-					X:435
-					Y:260
+					X:135
+					Y:60
 					Width:300
 					Height:25
 					Text:Hide from Server Browser
 				Button@CREATESERVER_BUTTON_CANCEL:
 					Id:CREATESERVER_BUTTON_CANCEL
-					X:400
-					Y:300
+					X:100
+					Y:100
 					Width:160
 					Height:25
 					Text:Cancel
 					Delegate:MainMenuButtonsDelegate
 				Button@CREATESERVER_BUTTON_START:
 					Id:CREATESERVER_BUTTON_START
-					X:570
-					Y:300
+					X:270
+					Y:100
 					Width:160
 					Height:25
 					Text:Create