make ResourceBarWidget generic

2012-09-25 19:43:57 +12:00
parent c42f270ce0
commit 84f7aa56e1
4 changed files with 6 additions and 5 deletions
--- a/OpenRA.Mods.Cnc/Widgets/ResourceBarWidget.cs
+++ b/OpenRA.Mods.Cnc/Widgets/ResourceBarWidget.cs
@@ -0,0 +1,84 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 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.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Cnc.Widgets
+{
+	public class ResourceBarWidget : Widget
+	{
+		public readonly string TooltipTemplate = "SIMPLE_TOOLTIP";
+		public readonly string TooltipContainer;
+		Lazy<TooltipContainerWidget> tooltipContainer;
+
+		public float LowStorageThreshold = 0.8f;
+		EWMA providedLerp = new EWMA(0.3f);
+		EWMA usedLerp = new EWMA(0.3f);
+
+		public Func<float> GetProvided = () => 0;
+		public Func<float> GetUsed = () => 0;
+		public string TooltipFormat = "";
+		public bool RightIndicator = false;
+		public Func<Color> GetBarColor = () => Color.White;
+
+		[ObjectCreator.UseCtor]
+		public ResourceBarWidget(World world)
+		{
+			tooltipContainer = Lazy.New(() =>
+				Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
+		}
+
+		public override void MouseEntered()
+		{
+			if (TooltipContainer == null) return;
+			Func<string> getText = () => TooltipFormat.F(GetUsed(), GetProvided());
+			tooltipContainer.Value.SetTooltip(TooltipTemplate, new WidgetArgs() {{ "getText", getText }});
+		}
+
+		public override void MouseExited()
+		{
+			if (TooltipContainer == null) return;
+			tooltipContainer.Value.RemoveTooltip();
+		}
+
+		public override void Draw()
+		{
+			var scaleBy = 100.0f;
+			var provided = GetProvided();
+			var used = GetUsed();
+			var max = Math.Max(provided, used);
+			while (max >= scaleBy) scaleBy *= 2;
+
+			var providedFrac = providedLerp.Update(provided/scaleBy);
+			var usedFrac = usedLerp.Update(used/scaleBy);
+
+			var color = GetBarColor();
+
+			var b = RenderBounds;
+			var rect = new RectangleF(b.X, float2.Lerp( b.Bottom, b.Top, providedFrac ),
+				b.Width, providedFrac*b.Height);
+			Game.Renderer.LineRenderer.FillRect(rect, color);
+
+			var indicator = ChromeProvider.GetImage("sidebar-bits",
+				RightIndicator ? "right-indicator" : "left-indicator");
+
+			var indicatorX = RightIndicator ? (b.Right - indicator.size.X) : b.Left;
+
+			var pos = new float2(indicatorX, float2.Lerp( b.Bottom, b.Top, usedFrac ) - indicator.size.Y / 2);
+
+			Game.Renderer.RgbaSpriteRenderer.DrawSprite(indicator, pos);
+		}
+	}
+}