git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@2049 993157c7-ee19-0410-b2c4-bb4e9862e678

OpenRa.Game/Graphics/Region.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace OpenRa.Game.Graphics
+{
+	class Region
+	{
+		float2 location;
+		Viewport viewport;
+
+		public float2 Location
+		{
+			get { return location + viewport.Location; }	// WTF HACK HACK HACK
+		}
+
+		public readonly float2 Size;
+
+		Action drawFunction;
+		MouseEventHandler mouseHandler;
+		Rectangle rect;
+
+		static int2 MakeSize(Viewport v, DockStyle d, int size)
+		{
+			switch (d)
+			{
+				case DockStyle.Top:
+				case DockStyle.Bottom:
+					return new int2(v.Width, size);
+
+				case DockStyle.Left:
+				case DockStyle.Right:
+					return new int2(size, v.Height);
+
+				default:
+					throw new NotImplementedException();
+			}
+		}
+
+		public void Clicked(MouseEventArgs e)
+		{
+			mouseHandler(this, new MouseEventArgs(e.Button, e.Clicks, e.X - rect.Left, e.Y - rect.Top, e.Delta));
+		}
+
+		public static Region Create(Viewport v, DockStyle d, int size, Action f, MouseEventHandler m)
+		{
+			int2 s = MakeSize(v, d, size);
+
+			switch (d)
+			{
+				case DockStyle.Top:
+				case DockStyle.Left:
+					return new Region(int2.Zero, s, v, f, m);
+
+				case DockStyle.Right:
+				case DockStyle.Bottom:
+					return new Region(new int2( v.Width - s.X, v.Height - s.Y ), s, v, f, m);
+
+				default:
+					throw new NotImplementedException();
+			}
+		}
+
+		Region(int2 location, int2 size, Viewport viewport, Action drawFunction, MouseEventHandler mouseHandler)
+		{
+			this.location = location;
+			this.Size = size;
+			this.drawFunction = drawFunction;
+			this.viewport = viewport;
+			this.mouseHandler = mouseHandler;
+			rect = new Rectangle(location.X, location.Y, size.X, size.Y);
+		}
+
+		public bool Contains(int2 point) { return rect.Contains(point.ToPoint()); }
+
+		public void Draw(Renderer renderer)
+		{
+			renderer.Device.EnableScissor((int)location.X, (int)location.Y, (int)Size.X, (int)Size.Y);
+			drawFunction();
+			renderer.Device.DisableScissor();
+		}
+	}
+}