Add new map editor UI.

OpenRA.Mods.Common/Widgets/EditorViewportControllerWidget.cs

@@ -0,0 +1,98 @@
+#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.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Mods.Common;
+using OpenRA.Mods.Common.Graphics;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Orders;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	public class EditorViewportControllerWidget : Widget
+	{
+		public IEditorBrush CurrentBrush { get; private set; }
+
+		public readonly string TooltipContainer;
+		public readonly string TooltipTemplate;
+
+		readonly Lazy<TooltipContainerWidget> tooltipContainer;
+		readonly EditorDefaultBrush defaultBrush;
+		readonly WorldRenderer worldRenderer;
+
+		bool enableTooltips;
+
+		[ObjectCreator.UseCtor]
+		public EditorViewportControllerWidget(World world, WorldRenderer worldRenderer)
+		{
+			this.worldRenderer = worldRenderer;
+			tooltipContainer = Exts.Lazy(() => Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
+			CurrentBrush = defaultBrush = new EditorDefaultBrush(this, worldRenderer);
+		}
+
+		public void ClearBrush() { SetBrush(null); }
+		public void SetBrush(IEditorBrush brush)
+		{
+			CurrentBrush = brush ?? defaultBrush;
+		}
+
+		public override void MouseEntered()
+		{
+			enableTooltips = true;
+		}
+
+		public override void MouseExited()
+		{
+			tooltipContainer.Value.RemoveTooltip();
+			enableTooltips = false;
+		}
+
+		public void SetTooltip(string tooltip)
+		{
+			if (!enableTooltips)
+				return;
+
+			if (tooltip != null)
+			{
+				Func<string> getTooltip = () => tooltip;
+				tooltipContainer.Value.SetTooltip(TooltipTemplate, new WidgetArgs() { { "getText", getTooltip } });
+			}
+			else
+				tooltipContainer.Value.RemoveTooltip();
+		}
+
+		public override bool HandleMouseInput(MouseInput mi)
+		{
+			if (CurrentBrush.HandleMouseInput(mi))
+				return true;
+
+			return base.HandleMouseInput(mi);
+		}
+
+		WPos cachedViewportPosition;
+		public override void Tick()
+		{
+			// Clear any tooltips when the viewport is scrolled using the keyboard
+			if (worldRenderer.Viewport.CenterPosition != cachedViewportPosition)
+				SetTooltip(null);
+
+			cachedViewportPosition = worldRenderer.Viewport.CenterPosition;
+			CurrentBrush.Tick();
+		}
+	}
+}