Move common widgets from Game to Mods.Common.

OpenRA.Mods.Common/Widgets/ProgressBarWidget.cs

@@ -0,0 +1,77 @@
+#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 System.Drawing;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	public class ProgressBarWidget : Widget
+	{
+		public int Percentage = 0;
+		public bool Indeterminate = false;
+
+		public Func<int> GetPercentage;
+		public Func<bool> IsIndeterminate;
+
+		// Indeterminant bar properties
+		float offset = 0f;
+		float tickStep = 0.04f;
+
+		public ProgressBarWidget()
+		{
+			GetPercentage = () => Percentage;
+			IsIndeterminate = () => Indeterminate;
+		}
+
+		protected ProgressBarWidget(ProgressBarWidget other)
+			: base(other)
+		{
+			Percentage = other.Percentage;
+			GetPercentage = other.GetPercentage;
+			IsIndeterminate = other.IsIndeterminate;
+		}
+
+		public override void Draw()
+		{
+			var rb = RenderBounds;
+			var percentage = GetPercentage();
+			WidgetUtils.DrawPanel("progressbar-bg", rb);
+
+			var barRect = wasIndeterminate ?
+				new Rectangle(rb.X + 2 + (int)(0.75 * offset * (rb.Width - 4)), rb.Y + 2, (rb.Width - 4) / 4, rb.Height - 4) :
+				new Rectangle(rb.X + 2, rb.Y + 2, percentage * (rb.Width - 4) / 100, rb.Height - 4);
+
+			if (barRect.Width > 0)
+				WidgetUtils.DrawPanel("progressbar-thumb", barRect);
+		}
+
+		bool wasIndeterminate;
+		public override void Tick()
+		{
+			var indeterminate = IsIndeterminate();
+			if (indeterminate != wasIndeterminate)
+				offset = 0f;
+
+			if (indeterminate)
+			{
+				offset += tickStep;
+				offset = offset.Clamp(0f, 1f);
+				if (offset == 0f || offset == 1f)
+					tickStep *= -1;
+			}
+
+			wasIndeterminate = indeterminate;
+		}
+
+		public override Widget Clone() { return new ProgressBarWidget(this); }
+	}
+}