Form event handlers now generated and loaded by python form designer.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3936 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/Python/PyWalker/ResolveWalker.cs

@@ -46,6 +46,12 @@ namespace PyWalker
 			return base.Walk(node);
 		}	
 		
+		public override bool Walk(AugmentedAssignStatement node)
+		{
+			writer.WriteLine("AugmentedAssignStatement");
+			return base.Walk(node);
+		}
+		
 		public override bool Walk(AssignmentStatement node)
 		{
 			writer.WriteLine("AssignmentStatement");

src/AddIns/BackendBindings/Python/PythonBinding/Project/Src/IComponentCreator.cs

@@ -46,5 +46,10 @@ namespace ICSharpCode.PythonBinding
 		/// Gets the type given its name.
 		/// </summary>
 		Type GetType(string typeName);
+		
+		/// <summary>
+		/// Gets the property descriptor associated with the event.
+		/// </summary>
+		PropertyDescriptor GetEventProperty(EventDescriptor e);
 	}
 }

src/AddIns/BackendBindings/Python/PythonBinding/Project/Src/PythonDesignerGenerator.cs

@@ -121,9 +121,15 @@ namespace ICSharpCode.PythonBinding
 			// new line before it.
 			IDocument doc = viewContent.DesignerCodeFileDocument;
 			string eventHandler = CreateEventHandler(eventMethodName, body, "\t");
-			string newContent = "\r\n" + eventHandler;
 			int line = doc.LineSegmentCollection.Count;
-			int offset = doc.GetLineSegment(line - 1).Offset;
+			LineSegment lastLineSegment = doc.GetLineSegment(line - 1);
+			int offset = lastLineSegment.Offset + lastLineSegment.Length;
+
+			string newContent = "\r\n" + eventHandler;
+			if (lastLineSegment.Length > 0) {
+				// Add an extra new line between the last line and the event handler.
+				newContent = "\r\n" + newContent;
+			}
 			doc.Insert(offset, newContent);
 			
 			// Set position so it points to the line

src/AddIns/BackendBindings/Python/PythonBinding/Project/Src/PythonDesignerLoader.cs

@@ -9,6 +9,7 @@ using System;
 using System.CodeDom;
 using System.Collections;
 using System.ComponentModel;
+using System.ComponentModel.Design;
 using System.ComponentModel.Design.Serialization;
 using System.Security.Permissions;
 
@@ -78,6 +79,15 @@ namespace ICSharpCode.PythonBinding
 			return serializationManager.GetType(typeName);
 		}
 		
+		/// <summary>
+		/// Gets the property descriptor associated with the event.
+		/// </summary>
+		public PropertyDescriptor GetEventProperty(EventDescriptor e)
+		{
+			IEventBindingService eventBindingService = GetService(typeof(IEventBindingService)) as IEventBindingService;
+			return eventBindingService.GetEventProperty(e);
+		}
+		
 		/// <summary>
 		/// Passes the designer host's root component to the generator so it can update the
 		/// source code with changes made at design time.

src/AddIns/BackendBindings/Python/PythonBinding/Project/Src/PythonForm.cs

@@ -7,8 +7,10 @@
 
 using System;
 using System.Drawing;
+using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.ComponentModel.Design;
 using System.Reflection;
 using System.Text;
 using System.Windows.Forms;
@@ -26,6 +28,41 @@ namespace ICSharpCode.PythonBinding
 		StringBuilder codeBuilder;
 		string indentString = String.Empty;
 		int indent;
+		IEventBindingService eventBindingService;
+		Attribute[] notDesignOnlyFilter = new Attribute[] { DesignOnlyAttribute.No };
+		
+		class PythonFormEventBindingService : EventBindingService
+		{
+			public PythonFormEventBindingService()
+				: base(new ServiceContainer())
+			{
+			}
+			
+			protected override string CreateUniqueMethodName(IComponent component, EventDescriptor e)
+			{
+				return String.Empty;
+			}
+			
+			protected override ICollection GetCompatibleMethods(EventDescriptor e)
+			{
+				return new ArrayList();
+			}
+			
+			protected override bool ShowCode()
+			{
+				return false;
+			}
+			
+			protected override bool ShowCode(int lineNumber)
+			{
+				return false;
+			}
+			
+			protected override bool ShowCode(IComponent component, EventDescriptor e, string methodName)
+			{
+				return false;
+			}
+		}
 		
 		public PythonForm() 
 			: this("\t")
@@ -33,8 +70,14 @@ namespace ICSharpCode.PythonBinding
 		}
 		
 		public PythonForm(string indentString) 
+			: this(indentString, new PythonFormEventBindingService())
+		{
+		}
+		
+		PythonForm(string indentString, IEventBindingService eventBindingService)
 		{
 			this.indentString = indentString;
+			this.eventBindingService = eventBindingService;
 		}
 
 		/// <summary>
@@ -71,8 +114,7 @@ namespace ICSharpCode.PythonBinding
 		public PropertyDescriptorCollection GetSerializableProperties(object obj)
 		{
 			List<PropertyDescriptor> properties = new List<PropertyDescriptor>();
-			Attribute[] filter = new Attribute[] { DesignOnlyAttribute.No };
-			foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(obj, filter).Sort()) {
+			foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(obj, notDesignOnlyFilter).Sort()) {
 				if (property.SerializationVisibility == DesignerSerializationVisibility.Visible) {
 					if (property.ShouldSerializeValue(obj)) {
 						properties.Add(property);
@@ -138,6 +180,8 @@ namespace ICSharpCode.PythonBinding
 					AppendControl(childControl, true, true);
 				}
 			}
+			
+			AppendEventHandlers(propertyOwnerName, control);
 		}
 		
 		/// <summary>
@@ -238,5 +282,33 @@ namespace ICSharpCode.PythonBinding
 				AppendChildControlLayoutMethodCalls(control.Controls, methods);
 			}
 		}
+		
+		/// <summary>
+		/// Generates code that wires an event to an event handler.
+		/// </summary>
+		/// <remarks>
+		/// Note that the EventDescriptorCollection.Sort method does not work if the
+		/// enumerator is called first. Sorting will only occur if an item is retrieved after calling
+		/// Sort or CopyTo is called. The PropertyDescriptorCollection class does not behave
+		/// in the same way.</remarks>
+		void AppendEventHandlers(string propertyOwnerName, Control control)
+		{
+			EventDescriptorCollection events = TypeDescriptor.GetEvents(control, notDesignOnlyFilter).Sort();
+			if (events.Count > 0) {
+				EventDescriptor dummyEventDescriptor = events[0];
+			}
+			foreach (EventDescriptor eventDescriptor in events) {
+				AppendEventHandler(propertyOwnerName, control, eventDescriptor);
+			}
+		}
+		
+		void AppendEventHandler(string propertyOwnerName, Control control, EventDescriptor eventDescriptor)
+		{
+			PropertyDescriptor propertyDescriptor = eventBindingService.GetEventProperty(eventDescriptor);
+			if (propertyDescriptor.ShouldSerializeValue(control)) {
+				string methodName = (string)propertyDescriptor.GetValue(control);
+				AppendIndentedLine(GetPropertyName(propertyOwnerName, eventDescriptor.Name) + " += self." + methodName);
+			}
+		}
 	}
 }

src/AddIns/BackendBindings/Python/PythonBinding/Project/Src/PythonFormWalker.cs

@@ -145,6 +145,25 @@ namespace ICSharpCode.PythonBinding
 			return false;
 		}
 		
+		/// <summary>
+		/// Walks a statement of the form:
+		/// 
+		/// self.a += self.b
+		/// </summary>
+		public override bool Walk(AugmentedAssignStatement node)
+		{
+			MemberExpression eventExpression = node.Left as MemberExpression;
+			string eventName = eventExpression.Name.ToString();
+			
+			MemberExpression eventHandlerExpression = node.Right as MemberExpression;
+			string eventHandlerName = eventHandlerExpression.Name.ToString();
+			
+			EventDescriptor eventDescriptor = TypeDescriptor.GetEvents(form).Find(eventName, false);
+			PropertyDescriptor propertyDescriptor = componentCreator.GetEventProperty(eventDescriptor);
+			propertyDescriptor.SetValue(form, eventHandlerName);
+			return false;
+		}
+		
 		/// <summary>
 		/// Walks the binary expression which is the right hand side of an assignment statement.
 		/// </summary>

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/GenerateEventHandlerFormTestFixture.cs

@@ -0,0 +1,78 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.Design;
+using System.ComponentModel.Design.Serialization;
+using System.Drawing;
+using System.Windows.Forms;
+using ICSharpCode.PythonBinding;
+using NUnit.Framework;
+using PythonBinding.Tests.Utils;
+
+namespace PythonBinding.Tests.Designer
+{
+	/// <summary>
+	/// Tests that an event is wired to its event handler after the user specifies an event handler
+	/// method in the property grid.
+	/// </summary>
+	[TestFixture]
+	public class GenerateEventHandlerFormTestFixture
+	{
+		string generatedPythonCode;
+		
+		[TestFixtureSetUp]
+		public void SetUpFixture()
+		{
+			using (DesignSurface designSurface = new DesignSurface(typeof(Form))) {
+				IDesignerHost host = (IDesignerHost)designSurface.GetService(typeof(IDesignerHost));
+				IEventBindingService eventBindingService = new MockEventBindingService(host);
+				Form form = (Form)host.RootComponent;
+				form.ClientSize = new Size(200, 300);
+
+				PropertyDescriptorCollection descriptors = TypeDescriptor.GetProperties(form);
+				PropertyDescriptor namePropertyDescriptor = descriptors.Find("Name", false);
+				namePropertyDescriptor.SetValue(form, "MainForm");
+				
+				// Simulate giving a name to the Load event handler in the property grid.
+				EventDescriptorCollection events = TypeDescriptor.GetEvents(form);
+				EventDescriptor loadEvent = events.Find("Load", false);
+				PropertyDescriptor loadEventProperty = eventBindingService.GetEventProperty(loadEvent);
+				loadEventProperty.SetValue(form, "MainFormLoad");
+				
+				// Add a second event handler method to check that the events are sorted alphabetically
+				// before the InitializeComponent method is generated.
+				EventDescriptor closedEvent = events.Find("FormClosed", false);
+				PropertyDescriptor closedEventProperty = eventBindingService.GetEventProperty(closedEvent);
+				closedEventProperty.SetValue(form, "MainFormClosed");
+				
+				PythonForm pythonForm = new PythonForm("    ");
+				generatedPythonCode = pythonForm.GenerateInitializeComponentMethod(form);
+			}
+		}
+		
+		[Test]
+		public void GeneratedCode()
+		{
+			string expectedCode = "def InitializeComponent(self):\r\n" +
+								"    self.SuspendLayout()\r\n" +
+								"    # \r\n" +
+								"    # MainForm\r\n" +
+								"    # \r\n" +
+								"    self.ClientSize = System.Drawing.Size(200, 300)\r\n" +
+								"    self.Name = \"MainForm\"\r\n" +
+								"    self.FormClosed += self.MainFormClosed\r\n" +
+								"    self.Load += self.MainFormLoad\r\n" +
+								"    self.ResumeLayout(False)\r\n" +
+								"    self.PerformLayout()\r\n";
+			
+			Assert.AreEqual(expectedCode, generatedPythonCode);
+		}
+	}
+}

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/InsertSecondEventHandlerTestFixture.cs

@@ -0,0 +1,71 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using ICSharpCode.PythonBinding;
+using ICSharpCode.FormsDesigner;
+using ICSharpCode.SharpDevelop.Dom;
+using NUnit.Framework;
+using PythonBinding.Tests.Utils;
+
+namespace PythonBinding.Tests.Designer
+{
+	/// <summary>
+	/// Tests the PythonDesignerGenerator adds an extra new line between the previous event handler
+	/// and the new one inserted.
+	/// </summary>
+	[TestFixture]
+	public class InsertSecondEventHandlerTestFixture
+	{
+		string file;
+		int position;
+		bool insertedEventHandler;
+		MockTextEditorViewContent mockViewContent;
+		DerivedFormDesignerViewContent viewContent;
+		
+		[TestFixtureSetUp]
+		public void SetUpFixture()
+		{
+			DerivedPythonDesignerGenerator generator = new DerivedPythonDesignerGenerator();
+			mockViewContent = new MockTextEditorViewContent();
+			viewContent = new DerivedFormDesignerViewContent(mockViewContent, new MockOpenedFile(@"C:\Projects\Python\mainform.py"));
+			generator.Attach(viewContent);
+			viewContent.DesignerCodeFileContent = GetTextEditorCode();	
+						
+			MockEventDescriptor mockEventDescriptor = new MockEventDescriptor("Click");
+			generator.InsertComponentEvent(null, mockEventDescriptor, "button1_click", String.Empty, out file, out position);
+			insertedEventHandler = generator.InsertComponentEvent(null, mockEventDescriptor, "button2_click", String.Empty, out file, out position);
+		}
+		
+		[Test]
+		public void ExpectedCodeAfterEventHandlerInserted()
+		{
+			string expectedCode = GetTextEditorCode();			
+			string eventHandler = "\tdef button1_click(self, sender, e):\r\n" +
+								"\t\tpass\r\n" +
+								"\r\n" +
+								"\tdef button2_click(self, sender, e):\r\n" +
+								"\t\tpass";
+			expectedCode = expectedCode + "\r\n" + eventHandler;
+			
+			Assert.AreEqual(expectedCode, viewContent.DesignerCodeFileContent);
+		}
+		
+		string GetTextEditorCode()
+		{
+			return "from System.Windows.Forms import Form\r\n" +
+					"\r\n" +
+					"class MainForm(Form):\r\n" +
+					"\tdef __init__(self):\r\n" +
+					"\t\tself.InitializeComponents()\r\n" +
+					"\t\r\n" +
+					"\tdef InitializeComponents(self):\r\n" +
+					"\t\tself._button1 = System.Windows.Forms.Button()\r\n" +
+					"\t\tself.Controls.Add(self._button1)\r\n";
+		}
+	}
+}

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/LoadEventHandlerTestFixture.cs

@@ -0,0 +1,52 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.Design;
+using System.Drawing;
+using System.IO;
+using System.Windows.Forms;
+
+using ICSharpCode.PythonBinding;
+using NUnit.Framework;
+using PythonBinding.Tests.Utils;
+
+namespace PythonBinding.Tests.Designer
+{
+	[TestFixture]
+	public class LoadEventHandlerTestFixture : LoadFormTestFixtureBase
+	{		
+		public override string PythonCode {
+			get {
+				return "class TestForm(System.Windows.Forms.Form):\r\n" +
+							"    def InitializeComponent(self):\r\n" +
+							"        self.SuspendLayout()\r\n" +
+							"        # \r\n" +
+							"        # TestForm\r\n" +
+							"        # \r\n" +
+							"        self.Name = \"TestForm\"\r\n" +
+							"        self.Load += self.TestFormLoad\r\n" +
+							"        self.ResumeLayout(False)\r\n";
+			}
+		}
+		
+		public EventDescriptor GetLoadEventDescriptor()
+		{
+			return TypeDescriptor.GetEvents(Form).Find("Load", true);
+		}
+		
+		[Test]
+		public void EventPropertyDescriptorValueSetToEventHandlerMethodName()
+		{
+			EventDescriptor loadEventDescriptor = GetLoadEventDescriptor();
+			PropertyDescriptor property = base.GetEventProperty(loadEventDescriptor);
+			Assert.AreEqual("TestFormLoad", property.GetValue(Form) as String);
+		}
+	}
+}

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/LoadFontTestFixture.cs

@@ -34,12 +34,6 @@ namespace PythonBinding.Tests.Designer
 			}
 		}
 		
-		[TestFixtureSetUp]
-		public new void SetUpFixture()
-		{
-			base.SetUpFixture();
-		}
-		
 		[Test]
 		public void FormBackColor()
 		{

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/LoadFormTestFixtureBase.cs

@@ -9,6 +9,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.ComponentModel.Design;
 using System.ComponentModel.Design.Serialization;
 using System.Drawing;
 using System.Reflection;
@@ -102,6 +103,11 @@ namespace PythonBinding.Tests.Designer
 			return type;
 		}
 		
+		public PropertyDescriptor GetEventProperty(EventDescriptor e)
+		{
+			return new MockPropertyDescriptor("abc", "TestFormLoad", true);
+		}
+		
 		protected Form Form {
 			get { return form; }
 		}

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/MissingInitializeComponentMethodTestFixture.cs

@@ -88,5 +88,10 @@ namespace PythonBinding.Tests.Designer
 		{
 			throw new NotImplementedException();
 		}
+		
+		public PropertyDescriptor GetEventProperty(EventDescriptor e)
+		{
+			return null;
+		}
 	}
 }

src/AddIns/BackendBindings/Python/PythonBinding/Test/Designer/PythonDesignerLoaderTestFixture.cs

@@ -38,6 +38,7 @@ namespace PythonBinding.Tests.Designer
 		MockExtenderProviderService mockExtenderProviderService;
 		IComponent rootComponent;
 		Form designedForm;
+		MockEventBindingService mockEventBindingService;
 		
 		[TestFixtureSetUp]
 		public void SetUpFixture()
@@ -55,6 +56,10 @@ namespace PythonBinding.Tests.Designer
 
 			mockExtenderProviderService = new MockExtenderProviderService();
 			mockDesignerLoaderHost.AddService(typeof(IExtenderProviderService), mockExtenderProviderService);
+			
+			mockEventBindingService = new MockEventBindingService();
+			mockDesignerLoaderHost.AddService(typeof(IEventBindingService), mockEventBindingService);
+			
 			System.Console.WriteLine("Before BeginLoad");
 			loader.BeginLoad(mockDesignerLoaderHost);
 			System.Console.WriteLine("After BeginLoad");
@@ -123,6 +128,15 @@ namespace PythonBinding.Tests.Designer
 			Assert.AreEqual(designedForm, generator.MergeChangesRootComponent);
 		}
 		
+		[Test]
+		public void GetEventPropertyUsesEventBindingService()
+		{
+			IEventBindingService eventBindingService = (IEventBindingService)mockEventBindingService;
+			EventDescriptor e = TypeDescriptor.GetEvents(typeof(Form)).Find("Load", true);
+			PropertyDescriptor expectedProperty = eventBindingService.GetEventProperty(e);
+			Assert.AreEqual(expectedProperty, loader.GetEventProperty(e));
+		}
+		
 		/// <summary>
 		/// The code that the designer loader will parse.
 		/// </summary>

src/AddIns/BackendBindings/Python/PythonBinding/Test/PythonBinding.Tests.csproj

@@ -155,6 +155,7 @@
     <Compile Include="Designer\GenerateAutoScrollFormTestFixture.cs" />
     <Compile Include="Designer\GenerateCursorFormTestFixture.cs" />
     <Compile Include="Designer\GenerateDoubleBufferedFormTestFixture.cs" />
+    <Compile Include="Designer\GenerateEventHandlerFormTestFixture.cs" />
     <Compile Include="Designer\GenerateFormColorTestFixture.cs" />
     <Compile Include="Designer\GenerateFormLocationTestFixture.cs" />
     <Compile Include="Designer\GenerateFormPaddingTestFixture.cs" />
@@ -168,11 +169,13 @@
     <Compile Include="Designer\GeneratorMergeFindsInitializeComponentsTestFixture.cs" />
     <Compile Include="Designer\IgnoreDesignTimePropertiesTestFixture.cs" />
     <Compile Include="Designer\InsertNewEventHandlerTestFixture.cs" />
+    <Compile Include="Designer\InsertSecondEventHandlerTestFixture.cs" />
     <Compile Include="Designer\IsFullyQualifiedBaseClassFormDesignableTestFixture.cs" />
     <Compile Include="Designer\LoadAccessibleRoleTestFixture.cs" />
     <Compile Include="Designer\LoadAnchorStylesFormTestFixture.cs" />
     <Compile Include="Designer\LoadColorFromArgbTestFixture.cs" />
     <Compile Include="Designer\LoadCursorTestFixture.cs" />
+    <Compile Include="Designer\LoadEventHandlerTestFixture.cs" />
     <Compile Include="Designer\LoadFontTestFixture.cs" />
     <Compile Include="Designer\LoadFormTestFixtureBase.cs" />
     <Compile Include="Designer\LoadFormWithBooleanPropertiesSetTestFixture.cs" />
@@ -249,6 +252,7 @@
     <Compile Include="Utils\MockDesignerGenerator.cs" />
     <Compile Include="Utils\MockDesignerLoaderHost.cs" />
     <Compile Include="Utils\MockEditableViewContent.cs" />
+    <Compile Include="Utils\MockEventBindingService.cs" />
     <Compile Include="Utils\MockEventDescriptor.cs" />
     <Compile Include="Utils\MockExtenderProviderService.cs" />
     <Compile Include="Utils\MockMethod.cs" />
@@ -257,6 +261,7 @@
     <Compile Include="Utils\MockProcessRunner.cs" />
     <Compile Include="Utils\MockProject.cs" />
     <Compile Include="Utils\MockProjectContent.cs" />
+    <Compile Include="Utils\MockPropertyDescriptor.cs" />
     <Compile Include="Utils\MockTextEditorProperties.cs" />
     <Compile Include="Utils\MockTextEditorViewContent.cs" />
     <Compile Include="Utils\MockTypeResolutionService.cs" />

src/AddIns/BackendBindings/Python/PythonBinding/Test/TODO.txt

@@ -87,3 +87,9 @@ def main(args):
    ChildControl has ParentControl as base class.
    BorderStyle set to None in designer for ChildControl. Code should then be generated for BorderStyle since this
    is not the default
+   
+ * Event Handler loading code:
+   
+   Handle invalid event name.
+   Check that += operator used.
+   Support event handlers on other controls.

src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockEventBindingService.cs

@@ -0,0 +1,52 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Collections;
+using System.ComponentModel;
+using System.ComponentModel.Design;
+
+namespace PythonBinding.Tests.Utils
+{
+	public class MockEventBindingService : EventBindingService
+	{
+		public MockEventBindingService(IServiceProvider serviceProvider)
+			: base(serviceProvider)
+		{
+		}
+		
+		public MockEventBindingService()
+			: this(new ServiceContainer())
+		{
+		}
+		
+		protected override string CreateUniqueMethodName(IComponent component, EventDescriptor e)
+		{
+			return String.Empty;
+		}
+		
+		protected override ICollection GetCompatibleMethods(EventDescriptor e)
+		{
+			return new ArrayList();
+		}
+		
+		protected override bool ShowCode()
+		{
+			return false;
+		}
+		
+		protected override bool ShowCode(int lineNumber)
+		{
+			return false;
+		}
+		
+		protected override bool ShowCode(IComponent component, EventDescriptor e, string methodName)
+		{
+			return false;
+		}
+	}
+}

src/AddIns/BackendBindings/Python/PythonBinding/Test/Utils/MockPropertyDescriptor.cs

@@ -0,0 +1,62 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Matthew Ward" email="mrward@users.sourceforge.net"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.ComponentModel;
+using System.Windows.Forms;
+
+namespace PythonBinding.Tests.Utils
+{
+	public class MockPropertyDescriptor : PropertyDescriptor
+	{
+		object propertyValue;
+		bool shouldSerializeValue;
+		
+		public MockPropertyDescriptor(string name, object value, bool shouldSerializeValue)
+			: base(name, null)
+		{
+			this.propertyValue = value;
+			this.shouldSerializeValue = shouldSerializeValue;
+		}
+		
+		public override Type ComponentType {
+			get { return typeof(Form); }
+		}
+		
+		public override bool IsReadOnly {
+			get { return false; }
+		}
+		
+		public override Type PropertyType {
+			get { return typeof(String); }
+		}
+		
+		public override bool CanResetValue(object component)
+		{
+			return true;
+		}
+		
+		public override object GetValue(object component)
+		{
+			return this.propertyValue;
+		}
+		
+		public override void ResetValue(object component)
+		{
+		}
+		
+		public override void SetValue(object component, object value)
+		{
+			this.propertyValue = value;
+		}
+		
+		public override bool ShouldSerializeValue(object component)
+		{
+			return shouldSerializeValue;
+		}		
+	}
+}