Perf debug as widgets

OpenRA.Game/Widgets/PerfGraphWidget.cs

@@ -0,0 +1,62 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
+ * This file is part of OpenRA.
+ * 
+ *  OpenRA is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  OpenRA is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+using System.Drawing;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Support;
+
+namespace OpenRA.Widgets
+{
+	class PerfGraphWidget : Widget
+	{
+		public override void Draw(World world)
+		{
+			if (!IsVisible())
+			{
+				base.Draw(world);
+				return;
+			}
+
+			float2 origin = Game.viewport.Location + new float2(Bounds.Right,Bounds.Bottom);
+			float2 basis = new float2(-Bounds.Width/100,-Bounds.Height/100);
+
+			Game.chrome.lineRenderer.DrawLine(origin, origin + new float2(100, 0) * basis, Color.White, Color.White);
+			Game.chrome.lineRenderer.DrawLine(origin + new float2(100,0) * basis, origin + new float2(100,70) * basis, Color.White, Color.White);
+
+			foreach (var item in PerfHistory.items.Values)
+			{
+				int n = 0;
+				item.Samples().Aggregate((a, b) =>
+				{
+					Game.chrome.lineRenderer.DrawLine(
+						origin + new float2(n, (float)a) * basis,
+						origin + new float2(n+1, (float)b) * basis,
+						item.c, item.c);
+					++n;
+					return b;
+				});
+			}
+
+			Game.chrome.lineRenderer.Flush();
+			
+			base.Draw(world);
+		}
+	}
+}