move widget code to commons

OpenRA.Mods.Common/Widgets/Logic/CreditsLogic.cs

@@ -0,0 +1,46 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+
+#endregion
+
+using System;
+using OpenRA.FileSystem;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets.Logic
+{
+	public class CreditsLogic
+	{
+		[ObjectCreator.UseCtor]
+		public CreditsLogic(Widget widget, Action onExit)
+		{
+			var panel = widget.Get("CREDITS_PANEL");
+
+			panel.Get<ButtonWidget>("BACK_BUTTON").OnClick = () =>
+			{
+				Ui.CloseWindow();
+				onExit();
+			};
+
+			var scrollPanel = panel.Get<ScrollPanelWidget>("CREDITS_DISPLAY");
+			var template = scrollPanel.Get<LabelWidget>("CREDITS_TEMPLATE");
+			scrollPanel.RemoveChildren();
+
+			var lines = GlobalFileSystem.Open("AUTHORS").ReadAllLines();
+			foreach (var l in lines)
+			{
+				// Improve the formatting
+				var line = l.Replace("\t", "    ").Replace("*", "\u2022");
+				var label = template.Clone() as LabelWidget;
+				label.GetText = () => line;
+				scrollPanel.AddChild(label);
+			}
+		}
+	}
+}