Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Mods.Common/Widgets/LabelWithTooltipWidget.cs

@@ -0,0 +1,64 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	public class LabelWithTooltipWidget : LabelWidget
+	{
+		public readonly string TooltipTemplate;
+		public readonly string TooltipContainer;
+		protected Lazy<TooltipContainerWidget> tooltipContainer;
+
+		public Func<string> GetTooltipText = () => "";
+
+		[ObjectCreator.UseCtor]
+		public LabelWithTooltipWidget(ModData modData)
+			: base(modData)
+		{
+			tooltipContainer = Exts.Lazy(() =>
+				Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
+		}
+
+		protected LabelWithTooltipWidget(LabelWithTooltipWidget other)
+			: base(other)
+		{
+			TooltipTemplate = other.TooltipTemplate;
+			TooltipContainer = other.TooltipContainer;
+
+			tooltipContainer = Exts.Lazy(() =>
+				Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
+
+			GetTooltipText = other.GetTooltipText;
+		}
+
+		public override LabelWithTooltipWidget Clone() { return new LabelWithTooltipWidget(this); }
+
+		public override void MouseEntered()
+		{
+			if (TooltipContainer == null)
+				return;
+
+			if (GetTooltipText != null)
+				tooltipContainer.Value.SetTooltip(TooltipTemplate, new WidgetArgs() { { "getText", GetTooltipText } });
+		}
+
+		public override void MouseExited()
+		{
+			// Only try to remove the tooltip if we know it has been created
+			// This avoids a crash if the widget (and the container it refers to) are being removed
+			if (TooltipContainer != null && tooltipContainer.IsValueCreated)
+				tooltipContainer.Value.RemoveTooltip();
+		}
+	}
+}