1 files changed, 116 insertions, 0 deletions
diff --git a/mcs/class/Managed.Windows.Forms/System.Windows.Forms/FeatureSupport.cs b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/FeatureSupport.cs
new file mode 100644
index 00000000000..3420d69ef39
--- /dev/null
+++ b/mcs/class/Managed.Windows.Forms/System.Windows.Forms/FeatureSupport.cs
@@ -0,0 +1,116 @@
+// 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.
+//
+// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
+//
+// Authors:
+//	Peter Bartok	(pbartok@novell.com)
+//
+//
+
+// COMPLETE
+
+using System.Reflection;
+
+namespace System.Windows.Forms {
+	public abstract class FeatureSupport : IFeatureSupport {
+		#region Public Constructors
+		protected FeatureSupport() {
+		}
+		#endregion	// Public Constructors
+
+		#region Private and Internal Methods
+		private static IFeatureSupport FeatureObject(string class_name) {
+			Type	class_type;
+
+			class_type = Type.GetType(class_name);
+			if ((class_type != null) && (typeof(IFeatureSupport).IsAssignableFrom(class_type))) {
+				ConstructorInfo	ctor;
+
+				ctor = class_type.GetConstructor(Type.EmptyTypes);
+				if (ctor != null) {
+					return ((IFeatureSupport)ctor.Invoke(new Object[0]));
+				}
+			}
+
+			return null;
+		}
+		#endregion	// Private and Internal Methods
+
+		#region Public Static Methods
+		public static Version GetVersionPresent(string featureClassName, string featureConstName) {
+			IFeatureSupport	obj;
+
+			obj = FeatureObject(featureClassName);
+			if (obj != null) {
+				return obj.GetVersionPresent(featureConstName);
+			}
+			return null;
+		}
+
+		public static bool IsPresent(string featureClassName, string featureConstName) {
+			IFeatureSupport	obj;
+
+			obj = FeatureObject(featureClassName);
+			if (obj != null) {
+				return obj.IsPresent(featureConstName);
+			}
+
+			return false;
+		}
+
+		public static bool IsPresent(string featureClassName, string featureConstName, Version minimumVersion) {
+			IFeatureSupport	obj;
+
+			obj = FeatureObject(featureClassName);
+			if (obj != null) {
+				return obj.IsPresent(featureConstName, minimumVersion);
+			}
+
+			return false;
+		}
+		#endregion	// Public Static Methods
+
+		#region Public Instance Methods
+		public abstract Version GetVersionPresent(object feature);
+
+		public virtual bool IsPresent(object feature) {
+			if (GetVersionPresent(feature) != null) {
+				return true;
+			}
+
+			return false;
+		}
+
+		public virtual bool IsPresent(object feature, Version minimumVersion) {
+			Version	version;
+			bool	retval;
+
+			retval = false;
+			version = GetVersionPresent(feature);
+
+			if ((version != null) && (version >= minimumVersion)) {
+				retval = true;
+			}
+
+			return retval;
+		}
+		#endregion	// Public Instance Methods
+	}
+}