ColorBlockWidget instead of ColorButton + refactoring

OpenRA.Game/Widgets/ColorBlockWidget.cs

@@ -0,0 +1,45 @@
+
+using System;
+using System.Drawing;
+
+namespace OpenRA.Widgets
+{
+	class ColorBlockWidget : Widget 
+	{
+		public int PaletteIndex = 0;
+		public Func<int> GetPaletteIndex;
+		
+		public ColorBlockWidget()
+			: base()
+		{
+			GetPaletteIndex = () => { return PaletteIndex; };
+		}
+		
+		public ColorBlockWidget(Widget widget)
+			:base(widget)
+		{
+			PaletteIndex = (widget as ColorBlockWidget).PaletteIndex;
+			GetPaletteIndex = (widget as ColorBlockWidget).GetPaletteIndex;
+		}
+		
+		public override Widget Clone()
+		{	
+			return new ColorBlockWidget(this);
+		}
+		
+		public override void Draw(World world)
+		{
+			if (!IsVisible())
+			{
+				base.Draw(world);
+				return;
+			}
+			
+			var pos = DrawPosition();
+			var paletteRect = new RectangleF(pos.X + Game.viewport.Location.X, pos.Y + Game.viewport.Location.Y, Bounds.Width, Bounds.Height);
+			Game.chrome.lineRenderer.FillRect(paletteRect, Player.PlayerColors(Game.world)[GetPaletteIndex() % Player.PlayerColors(Game.world).Count].c);
+			
+			base.Draw(world);
+		}
+	}
+}