moved all sources to trunk directory

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@693 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4

Greenshot/Drawing/Fields/Binding/IBindingValidator.cs

@@ -0,0 +1,35 @@
+/*
+ * Greenshot - a free and open source screenshot tool
+ * Copyright (C) 2007-2010  Thomas Braun, Jens Klingen, Robin Krom
+ * 
+ * For more information see: http://getgreenshot.org/
+ * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
+ * 
+ * This program 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 1 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+using System;
+
+namespace Greenshot.Drawing.Fields.Binding {
+	
+	/// <summary>
+	/// Interface for a bidirectional validator, for use with BidirectionalBinding.
+	/// Useful if you do not want to synchronize values which would be illegal on
+	/// one of the bound objects (e.g. null value on some form components)
+	/// see NotNullValidator
+	/// </summary>
+	public interface IBindingValidator {
+		bool validate(object o);
+	}
+	
+}