fix some issues:

- formatting and indentation in some files
- do not catch and mute all exceptions in some cases
- use RhinoMocks to mock required services in tests

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/DesignPanel.cs

@@ -189,30 +189,42 @@ namespace ICSharpCode.WpfDesign.Designer
 		/// Enables / Disables the Snapline Placement
 		/// </summary>
 		private bool _useSnaplinePlacement = true;
-		public bool UseSnaplinePlacement
-		{
+		public bool UseSnaplinePlacement {
 			get { return _useSnaplinePlacement; }
-			set { _useSnaplinePlacement = value; OnPropertyChanged("UseSnaplinePlacement"); }
+			set {
+				if (_useSnaplinePlacement != value) {
+					_useSnaplinePlacement = value;
+					OnPropertyChanged("UseSnaplinePlacement");
+				}
+			}
 		}
 
 		/// <summary>
 		/// Enables / Disables the Raster Placement
 		/// </summary>
 		private bool _useRasterPlacement = false;
-		public bool UseRasterPlacement
-		{
+		public bool UseRasterPlacement {
 			get { return _useRasterPlacement; }
-			set { _useRasterPlacement = value; OnPropertyChanged("UseRasterPlacement"); }
+			set {
+				if (_useRasterPlacement != value) {
+					_useRasterPlacement = value;
+					OnPropertyChanged("UseRasterPlacement");
+				}
+			}
 		}
 		
 		/// <summary>
 		/// Sets the with of the Raster when using Raster Placement
 		/// </summary>
 		private int _rasterWidth = 5;
-		public int RasterWidth
-		{
+		public int RasterWidth {
 			get { return _rasterWidth; }
-			set { _rasterWidth = value; OnPropertyChanged("RasterWidth"); }
+			set {
+				if (_rasterWidth != value) {
+					_rasterWidth = value;
+					OnPropertyChanged("RasterWidth");
+				}
+			}
 		}
 		
 		#endregion

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/RasterPlacementBehavior.cs

@@ -13,21 +13,18 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 {
 	public class RasterPlacementBehavior : DefaultPlacementBehavior
 	{
-		int raster = 5;
-
 		Canvas surface;
 		AdornerPanel adornerPanel;
-		private bool rasterDrawn = false;
+		bool rasterDrawn = false;
+		int raster = 5;
 
 		public override void BeginPlacement(PlacementOperation operation)
 		{
 			base.BeginPlacement(operation);
 			
-			try {
-				raster = ((DesignPanel) ExtendedItem.Services.DesignPanel).RasterWidth;
-			}
-			catch (Exception ex)
-			{ }
+			DesignPanel designPanel = ExtendedItem.Services.DesignPanel as DesignPanel;
+			if (designPanel != null)
+				raster = designPanel.RasterWidth;
 			
 			CreateSurface(operation);
 		}
@@ -79,7 +76,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 			base.BeforeSetPosition(operation);
 			if (surface == null) return;
 
-			if (!((DesignPanel) ExtendedItem.Services.DesignPanel).UseRasterPlacement)
+			DesignPanel designPanel = ExtendedItem.Services.DesignPanel as DesignPanel;
+			if (designPanel == null || !designPanel.UseRasterPlacement)
 				return;
 
 			if (Keyboard.IsKeyDown(Key.LeftCtrl))

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/SnaplinePlacementBehavior.cs

@@ -59,7 +59,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 			base.BeforeSetPosition(operation);
 			if (surface == null) return;
 
-			if (!((DesignPanel)ExtendedItem.Services.DesignPanel).UseSnaplinePlacement)
+			DesignPanel designPanel = ExtendedItem.Services.DesignPanel as DesignPanel;
+			if (designPanel == null || !designPanel.UseSnaplinePlacement)
 				return;
 			
 			surface.Children.Clear();

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Tests/Designer/ModelTestHelper.cs

@@ -10,9 +10,11 @@ using System.Windows;
 using System.Windows.Media;
 using System.Windows.Controls;
 using System.Windows.Controls.Primitives;
+using ICSharpCode.WpfDesign.Adorners;
 using NUnit.Framework;
 using ICSharpCode.WpfDesign.Designer;
 using ICSharpCode.WpfDesign.Designer.Xaml;
+using Rhino.Mocks;
 
 namespace ICSharpCode.WpfDesign.Tests.Designer
 {
@@ -35,6 +37,11 @@ namespace ICSharpCode.WpfDesign.Tests.Designer
 			context.Services.Component.ComponentUnregistered += delegate(object sender, DesignItemEventArgs e) {
 				log.AppendLine("Unregister " + ItemIdentity(e.Item));
 			};*/
+			
+			// create required service mocks
+			var designPanel = MockRepository.GenerateStub<IDesignPanel>();
+			designPanel.Stub(dp => dp.Adorners).Return(new System.Collections.Generic.List<AdornerPanel>());
+			context.Services.AddService(typeof(IDesignPanel), designPanel);
 			return context;
 		}
 		

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Tests/WpfDesign.Tests.csproj

@@ -43,6 +43,9 @@
     </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="Rhino.Mocks">
+      <HintPath>..\..\..\..\..\Libraries\RhinoMocks\Rhino.Mocks.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/XamlDocument.cs

@@ -180,7 +180,9 @@ namespace ICSharpCode.WpfDesign.XamlDom
 
 			if (hasStringConverter && XamlObject.GetContentPropertyName(elementType) != null) {
 				xml.InnerText = c.ConvertToInvariantString(instance);
-			} else if (instance is Brush) {  //Todo: this is a hacky fix, because Brush Editor don't edit Design Items and so we have no XML, only the Brush Object and we need to Parse the Brush to XAML!
+			} else if (instance is Brush) {  // TODO: this is a hacky fix, because Brush Editor doesn't
+										     // edit Design Items and so we have no XML, only the Brush 
+										     // object and we need to parse the Brush to XAML!
 				var s = new MemoryStream();
 				XamlWriter.Save(instance, s);
 				s.Seek(0, SeekOrigin.Begin);