fixed up the chrome/widgets tree

OpenRA.Game/Widgets/ButtonWidget.cs

@@ -0,0 +1,82 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
+ * This file is part of OpenRA.
+ * 
+ *  OpenRA is free software: you can redistribute it and/or modify
+ *  it 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.
+ * 
+ *  OpenRA is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+using System.Drawing;
+
+namespace OpenRA.Widgets
+{
+	class ButtonWidget : Widget
+	{
+		public string Text = "";
+		public bool Depressed = false;
+		public int VisualHeight = 1;
+		public override bool HandleInput(MouseInput mi)
+		{
+			if (Game.chrome.selectedWidget == this)
+				Depressed = (GetEventBounds().Contains(mi.Location.X,mi.Location.Y)) ? true : false;
+			
+			// Relinquish focus
+			if (Game.chrome.selectedWidget == this && mi.Event == MouseInputEvent.Up)
+			{
+				Game.chrome.selectedWidget = null;
+				Depressed = false;
+			}
+			
+			// Are we able to handle this event?
+			if (!Visible || !GetEventBounds().Contains(mi.Location.X,mi.Location.Y))
+				return base.HandleInput(mi);
+			
+			
+			if (base.HandleInput(mi))
+				return true;
+			
+			// Give button focus only while the mouse is down
+			// This is a bit of a hack: it will become cleaner soonish
+			// It will also steal events from any potential children
+			// We also want to play a click sound
+			if (mi.Event == MouseInputEvent.Down)
+			{
+				Game.chrome.selectedWidget = this;
+				Depressed = true;
+				return true;
+			}
+			
+			return false;
+		}
+
+		public override void Draw()
+		{
+			if (!Visible)
+			{
+				base.Draw();
+				return;
+			}
+
+			var stateOffset = (Depressed) ? new int2(VisualHeight, VisualHeight) : new int2(0, 0);
+			WidgetUtils.DrawPanel(Depressed ? "dialog3" : "dialog2", Bounds,
+				() => Game.chrome.renderer.BoldFont.DrawText(Game.chrome.rgbaRenderer, Text,
+				new int2(Bounds.X + Bounds.Width / 2, Bounds.Y + Bounds.Height / 2)
+					- new int2(Game.chrome.renderer.BoldFont.Measure(Text).X / 2,
+				Game.chrome.renderer.BoldFont.Measure(Text).Y / 2) + stateOffset, Color.White));
+
+			base.Draw();
+		}
+	}
+}