1 files changed, 118 insertions, 0 deletions
diff --git a/mcs/class/System.Drawing/System.Drawing/BufferedGraphics.cs b/mcs/class/System.Drawing/System.Drawing/BufferedGraphics.cs
new file mode 100644
index 00000000000..383242b95f2
--- /dev/null
+++ b/mcs/class/System.Drawing/System.Drawing/BufferedGraphics.cs
@@ -0,0 +1,118 @@
+//
+// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Authors:
+//
+//   Jordi Mas i Hernadez <jordimash@gmail.com>
+//
+//
+
+#if NET_2_0
+
+using System;
+using System.Runtime.Serialization;
+using System.Runtime.InteropServices;
+using System.ComponentModel;
+
+namespace System.Drawing
+{
+	public sealed class BufferedGraphics : IDisposable
+	{
+		private Rectangle size;
+		private Bitmap membmp = null;
+		private Graphics target = null;
+		private Graphics source = null;
+
+		private BufferedGraphics ()
+		{
+
+		}
+
+		internal BufferedGraphics (Graphics targetGraphics, Rectangle targetRectangle)
+		{
+			size = targetRectangle;
+			target = targetGraphics;			
+			membmp = new Bitmap (size.Width, size.Height);
+		}
+
+		~BufferedGraphics ()
+		{
+			Dispose (false);
+		}
+
+	      	public Graphics Graphics {
+			get {
+				if (source == null) {
+					source = Graphics.FromImage (membmp);
+				}
+
+				return source;
+			}
+		}
+
+	      	public void Dispose ()
+		{
+			Dispose (true);
+			System.GC.SuppressFinalize (this);
+		}
+
+		private void Dispose (bool disposing)
+		{
+			if (disposing == false)
+				return;
+
+			if (membmp != null) {
+				membmp.Dispose ();
+				membmp = null;
+			}
+
+			if (source != null) {
+				source.Dispose ();
+				source = null;
+			}
+
+			target = null;
+		}
+
+	      	public void Render ()
+		{
+			Render (target);
+		}
+
+	      	public void Render (Graphics target)
+		{
+			if (target == null)
+				return;
+
+			target.DrawImage (membmp, size);
+		}
+
+		[MonoTODO]
+	      	public void Render (IntPtr targetDC)
+		{
+			throw new NotImplementedException ();
+		}
+	}
+}
+
+#endif
+