Arrange Items via ContextMenu and a few fixes...

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

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ICSharpCode.WpfDesign.Designer
+{
+    public enum ArrangeDirection
+    {
+        Top,
+        VerticalMiddle,
+        Bottom,
+        Left,
+        HorizontalMiddle,
+        Right,
+    }
+}

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/ArrangeItemsContextMenu.xaml

@@ -0,0 +1,36 @@
+<ContextMenu x:Class="ICSharpCode.WpfDesign.Designer.Extensions.ArrangeItemsContextMenu"
+             xmlns="http://schemas.microsoft.com/netfx/2007/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:Translation="clr-namespace:ICSharpCode.WpfDesign.Designer"
+             >
+	<MenuItem Header="{Binding ArrangeLeft, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeLeft">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment-left.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{Binding ArrangeHorizontalMiddle, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeHorizontalCentered">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment-center.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{Binding ArrangeRight, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeRight">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment-right.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{Binding ArrangeTop, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeTop">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{Binding ArrangeVerticalMiddle, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeVerticalCentered">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment-middle.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+    <MenuItem Header="{Binding ArrangeBottom, Source={x:Static Translation:Translations.Instance}}" Click="Click_ArrangeBottom">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/layers-alignment-bottom.png" />
+        </MenuItem.Icon>
+    </MenuItem>
+</ContextMenu>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/ArrangeItemsContextMenu.xaml.cs

@@ -0,0 +1,78 @@
+// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using ICSharpCode.WpfDesign.PropertyGrid;
+using ICSharpCode.WpfDesign.Designer.Xaml;
+
+namespace ICSharpCode.WpfDesign.Designer.Extensions
+{
+	public partial class ArrangeItemsContextMenu
+    {
+		private DesignItem designItem;
+		
+		public ArrangeItemsContextMenu(DesignItem designItem)
+		{
+			this.designItem = designItem;
+			
+			InitializeComponent();
+		}
+		
+		void Click_ArrangeLeft(object sender, System.Windows.RoutedEventArgs e)
+		{
+			ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.Left);
+		}
+
+        void Click_ArrangeHorizontalCentered(object sender, System.Windows.RoutedEventArgs e)
+        {
+            ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.HorizontalMiddle);
+        }
+
+        void Click_ArrangeRight(object sender, System.Windows.RoutedEventArgs e)
+        {
+            ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.Right);
+        }
+
+        void Click_ArrangeTop(object sender, System.Windows.RoutedEventArgs e)
+        {
+            ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.Top);
+        }
+
+        void Click_ArrangeVerticalCentered(object sender, System.Windows.RoutedEventArgs e)
+        {
+            ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.VerticalMiddle);
+        }
+
+        void Click_ArrangeBottom(object sender, System.Windows.RoutedEventArgs e)
+        {
+            ModelTools.ArrangeItems(this.designItem.Services.Selection.SelectedItems, ArrangeDirection.Bottom);
+        }
+    }
+}

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

@@ -0,0 +1,58 @@
+// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
+// 
+// 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.
+
+using System;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Media;
+using System.Windows.Shapes;
+
+using ICSharpCode.WpfDesign.Adorners;
+using ICSharpCode.WpfDesign.Extensions;
+using ICSharpCode.WpfDesign.Designer;
+
+namespace ICSharpCode.WpfDesign.Designer.Extensions
+{
+	/// <summary>
+	/// 
+	/// </summary>
+	[ExtensionServer(typeof(PrimarySelectionButOnlyWhenMultipleSelectedExtensionServer))]
+	[ExtensionFor(typeof(UIElement))]
+    [Extension(Order = 30)]
+    public class ArrangeItemsContextMenuExtension : SelectionAdornerProvider
+    {
+        DesignPanel panel;
+        ContextMenu contextMenu;
+
+        protected override void OnInitialized()
+		{
+			base.OnInitialized();
+
+            contextMenu = new ArrangeItemsContextMenu(ExtendedItem);
+            panel = ExtendedItem.Context.Services.DesignPanel as DesignPanel;
+            panel.AddContextMenu(contextMenu);
+        }
+		
+		protected override void OnRemove()
+		{
+            panel.RemoveContextMenu(contextMenu);
+
+            base.OnRemove();
+		}
+	}
+}

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

@@ -66,8 +66,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 				
 				minX = minX < relativeLocation.X ? minX : relativeLocation.X;
 				minY = minY < relativeLocation.Y ? minY : relativeLocation.Y;
-				maxX = maxX > relativeLocation.X + ((FrameworkElement)this.ExtendedItem.View).ActualWidth ? maxX : relativeLocation.X + ((FrameworkElement)this.ExtendedItem.View).ActualWidth;
-				maxY = maxY > relativeLocation.Y + ((FrameworkElement)this.ExtendedItem.View).ActualHeight ? maxY : relativeLocation.Y + ((FrameworkElement)this.ExtendedItem.View).ActualHeight;
+				maxX = maxX > relativeLocation.X + ((FrameworkElement)di.View).ActualWidth ? maxX : relativeLocation.X + ((FrameworkElement)di.View).ActualWidth;
+				maxY = maxY > relativeLocation.Y + ((FrameworkElement)di.View).ActualHeight ? maxY : relativeLocation.Y + ((FrameworkElement)di.View).ActualHeight;
 			}
 			
 			Rectangle rect2 = new Rectangle() {

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/WrapItemsContextMenu.xaml

@@ -1,8 +1,12 @@
-<ContextMenu x:Class="ICSharpCode.WpfDesign.Designer.Extensions.RightClickMultipleItemsContextMenu"
+<ContextMenu x:Class="ICSharpCode.WpfDesign.Designer.Extensions.WrapItemsContextMenu"
              xmlns="http://schemas.microsoft.com/netfx/2007/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:Translation="clr-namespace:ICSharpCode.WpfDesign.Designer"
              >
 	<MenuItem Header="{Binding WrapInCanvas, Source={x:Static Translation:Translations.Instance}}" Click="Click_WrapInCanvas" />
-	<MenuItem Header="{Binding WrapInGrid, Source={x:Static Translation:Translations.Instance}}" Click="Click_WrapInGrid" />
+	<MenuItem Header="{Binding WrapInGrid, Source={x:Static Translation:Translations.Instance}}" Click="Click_WrapInGrid">
+        <MenuItem.Icon>
+            <Image Source="/ICSharpCode.WpfDesign.Designer;component/Images/grid.png" />
+        </MenuItem.Icon>
+    </MenuItem>
 </ContextMenu>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/WrapItemsContextMenu.xaml.cs

@@ -34,11 +34,11 @@ using ICSharpCode.WpfDesign.Designer.Xaml;
 
 namespace ICSharpCode.WpfDesign.Designer.Extensions
 {
-	public partial class RightClickMultipleItemsContextMenu
-	{
+	public partial class WrapItemsContextMenu
+    {
 		private DesignItem designItem;
 		
-		public RightClickMultipleItemsContextMenu(DesignItem designItem)
+		public WrapItemsContextMenu(DesignItem designItem)
 		{
 			this.designItem = designItem;
 			

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

@@ -33,7 +33,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 	/// </summary>
 	[ExtensionServer(typeof(PrimarySelectionButOnlyWhenMultipleSelectedExtensionServer))]
 	[ExtensionFor(typeof(UIElement))]
-	public class RightClickMultipleItemsContextMenuExtension : SelectionAdornerProvider
+    [Extension(Order = 50)]
+    public class WrapItemsContextMenuExtension : SelectionAdornerProvider
     {
         DesignPanel panel;
         ContextMenu contextMenu;
@@ -42,7 +43,7 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 		{
 			base.OnInitialized();
 
-            contextMenu = new RightClickMultipleItemsContextMenu(ExtendedItem);
+            contextMenu = new WrapItemsContextMenu(ExtendedItem);
             panel = ExtendedItem.Context.Services.DesignPanel as DesignPanel;
             panel.AddContextMenu(contextMenu);
         }

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

@@ -229,8 +229,113 @@ namespace ICSharpCode.WpfDesign.Designer
 			
 			public DesignItem DesignItem { get; set; }
 		}
-		
-		public static void WrapItemsNewContainer(IEnumerable<DesignItem> items, Type containerType)
+
+	    private static ItemPos GetItemPos(DesignItem designItem)
+	    {
+            var itemPos = new ItemPos() {DesignItem = designItem};
+
+	        if (designItem.Parent.Component is Canvas)
+	        {
+	            var canvas = designItem.Parent.View as Canvas;
+
+	            if (designItem.Properties.GetAttachedProperty(Canvas.RightProperty) != null &&
+	                designItem.Properties.GetAttachedProperty(Canvas.RightProperty).IsSet)
+	            {
+	                itemPos.HorizontalAlignment = HorizontalAlignment.Right;
+	                itemPos.Xmax = canvas.ActualWidth -
+	                               (double) designItem.Properties.GetAttachedProperty(Canvas.RightProperty).ValueOnInstance;
+	                itemPos.Xmin = itemPos.Xmax - ((FrameworkElement) designItem.View).ActualWidth;
+	            }
+	            else if (designItem.Properties.GetAttachedProperty(Canvas.LeftProperty) != null &&
+	                     designItem.Properties.GetAttachedProperty(Canvas.LeftProperty).IsSet)
+	            {
+	                itemPos.HorizontalAlignment = HorizontalAlignment.Left;
+	                itemPos.Xmin =
+	                    (double) designItem.Properties.GetAttachedProperty(Canvas.LeftProperty).ValueOnInstance;
+	                itemPos.Xmax = itemPos.Xmin + ((FrameworkElement) designItem.View).ActualWidth;
+	            }
+	            else
+	            {
+	                itemPos.HorizontalAlignment = HorizontalAlignment.Left;
+	                itemPos.Xmax = itemPos.Xmin + ((FrameworkElement) designItem.View).ActualWidth;
+	            }
+
+	            if (designItem.Properties.GetAttachedProperty(Canvas.BottomProperty) != null &&
+	                designItem.Properties.GetAttachedProperty(Canvas.BottomProperty).IsSet)
+	            {
+	                itemPos.VerticalAlignment = VerticalAlignment.Bottom;
+	                itemPos.Ymax = canvas.ActualHeight -
+	                               (double)
+	                                   designItem.Properties.GetAttachedProperty(Canvas.BottomProperty).ValueOnInstance;
+	                itemPos.Ymin = itemPos.Ymax - ((FrameworkElement) designItem.View).ActualHeight;
+	            }
+	            else if (designItem.Properties.GetAttachedProperty(Canvas.TopProperty) != null &&
+	                     designItem.Properties.GetAttachedProperty(Canvas.TopProperty).IsSet)
+	            {
+	                itemPos.VerticalAlignment = VerticalAlignment.Top;
+	                itemPos.Ymin =
+	                    (double) designItem.Properties.GetAttachedProperty(Canvas.TopProperty).ValueOnInstance;
+	                itemPos.Ymax = itemPos.Ymin + ((FrameworkElement) designItem.View).ActualHeight;
+	            }
+	            else
+	            {
+	                itemPos.VerticalAlignment = VerticalAlignment.Top;
+	                itemPos.Ymax = itemPos.Ymin + ((FrameworkElement) designItem.View).ActualHeight;
+	            }
+	        }
+	        else if (designItem.Parent.Component is Grid)
+	        {
+	            var grid = designItem.Parent.View as Grid;
+
+	            if (
+	                (HorizontalAlignment)
+	                    designItem.Properties.GetProperty(FrameworkElement.HorizontalAlignmentProperty).ValueOnInstance ==
+	                HorizontalAlignment.Right)
+	            {
+	                itemPos.HorizontalAlignment = HorizontalAlignment.Right;
+	                itemPos.Xmax = grid.ActualWidth -
+	                               ((Thickness)
+	                                   designItem.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance)
+	                                   .Right;
+	                itemPos.Xmin = itemPos.Xmax - ((FrameworkElement) designItem.View).ActualWidth;
+	            }
+	            else
+	            {
+	                itemPos.HorizontalAlignment = HorizontalAlignment.Left;
+	                itemPos.Xmin =
+	                    ((Thickness) designItem.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance)
+	                        .Left;
+	                itemPos.Xmax = itemPos.Xmin + ((FrameworkElement) designItem.View).ActualWidth;
+	            }
+
+	            if (
+	                (VerticalAlignment)
+	                    designItem.Properties.GetProperty(FrameworkElement.VerticalAlignmentProperty).ValueOnInstance ==
+	                VerticalAlignment.Bottom)
+	            {
+	                itemPos.VerticalAlignment = VerticalAlignment.Bottom;
+	                itemPos.Ymax = grid.ActualHeight -
+	                               ((Thickness)
+	                                   designItem.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance)
+	                                   .Bottom;
+	                itemPos.Ymin = itemPos.Ymax - ((FrameworkElement) designItem.View).ActualHeight;
+	            }
+	            else
+	            {
+	                itemPos.VerticalAlignment = VerticalAlignment.Top;
+	                itemPos.Ymin =
+	                    ((Thickness) designItem.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance)
+	                        .Top;
+	                itemPos.Ymax = itemPos.Ymin + ((FrameworkElement) designItem.View).ActualHeight;
+	            }
+
+
+	        }
+
+            return itemPos;
+	    }
+
+	    public static void WrapItemsNewContainer(IEnumerable<DesignItem> items, Type containerType)
 		{
 			var collection = items;
 			
@@ -248,68 +353,14 @@ namespace ICSharpCode.WpfDesign.Designer
 			List<ItemPos> itemList = new List<ItemPos>();
 			
 			foreach (var item in collection) {
-				
-				var itemPos = new ItemPos(){ DesignItem = item };
-				itemList.Add(itemPos);
+				itemList.Add(GetItemPos(item));
 				
 				if (oldContainer.Component is Canvas) {
-					var canvas = oldContainer.View as Canvas;
-					
-					if (item.Properties.GetAttachedProperty(Canvas.RightProperty) != null && item.Properties.GetAttachedProperty(Canvas.RightProperty).IsSet) {
-						itemPos.HorizontalAlignment = HorizontalAlignment.Right;
-						itemPos.Xmax = canvas.ActualWidth - (double)item.Properties.GetAttachedProperty(Canvas.RightProperty).ValueOnInstance;
-						itemPos.Xmin = itemPos.Xmax - ((FrameworkElement)item.View).ActualWidth;
-					}
-					else if (item.Properties.GetAttachedProperty(Canvas.LeftProperty) != null && item.Properties.GetAttachedProperty(Canvas.LeftProperty).IsSet) {
-						itemPos.HorizontalAlignment = HorizontalAlignment.Left;
-						itemPos.Xmin = (double)item.Properties.GetAttachedProperty(Canvas.LeftProperty).ValueOnInstance;
-						itemPos.Xmax = itemPos.Xmin + ((FrameworkElement)item.View).ActualWidth;
-					} else {
-						itemPos.HorizontalAlignment = HorizontalAlignment.Left;
-						itemPos.Xmax = itemPos.Xmin + ((FrameworkElement)item.View).ActualWidth;
-					}
-					
-					if (item.Properties.GetAttachedProperty(Canvas.BottomProperty) != null && item.Properties.GetAttachedProperty(Canvas.BottomProperty).IsSet) {
-						itemPos.VerticalAlignment = VerticalAlignment.Bottom;
-						itemPos.Ymax = canvas.ActualHeight - (double)item.Properties.GetAttachedProperty(Canvas.BottomProperty).ValueOnInstance;
-						itemPos.Ymin = itemPos.Ymax - ((FrameworkElement)item.View).ActualHeight;
-					}
-					else if (item.Properties.GetAttachedProperty(Canvas.TopProperty) != null && item.Properties.GetAttachedProperty(Canvas.TopProperty).IsSet) {
-						itemPos.VerticalAlignment = VerticalAlignment.Top;
-						itemPos.Ymin = (double)item.Properties.GetAttachedProperty(Canvas.TopProperty).ValueOnInstance;
-						itemPos.Ymax = itemPos.Ymin + ((FrameworkElement)item.View).ActualHeight;
-					} else {
-						itemPos.VerticalAlignment = VerticalAlignment.Top;
-						itemPos.Ymax = itemPos.Ymin + ((FrameworkElement)item.View).ActualHeight;
-					}
-					
 					item.Properties.GetAttachedProperty(Canvas.RightProperty).Reset();
 					item.Properties.GetAttachedProperty(Canvas.LeftProperty).Reset();
 					item.Properties.GetAttachedProperty(Canvas.TopProperty).Reset();
 					item.Properties.GetAttachedProperty(Canvas.BottomProperty).Reset();
 				} else if (oldContainer.Component is Grid) {
-					var grid = oldContainer.View as Grid;
-					
-					if ((HorizontalAlignment)item.Properties.GetProperty(FrameworkElement.HorizontalAlignmentProperty).ValueOnInstance == HorizontalAlignment.Right) {
-						itemPos.HorizontalAlignment = HorizontalAlignment.Right;
-						itemPos.Xmax = grid.ActualWidth - ((Thickness)item.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance).Right;
-						itemPos.Xmin = itemPos.Xmax - ((FrameworkElement)item.View).ActualWidth;
-					} else {
-						itemPos.HorizontalAlignment = HorizontalAlignment.Left;
-						itemPos.Xmin = ((Thickness)item.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance).Left;
-						itemPos.Xmax = itemPos.Xmin + ((FrameworkElement)item.View).ActualWidth;
-					}
-					
-					if ((VerticalAlignment)item.Properties.GetProperty(FrameworkElement.VerticalAlignmentProperty).ValueOnInstance == VerticalAlignment.Bottom) {
-						itemPos.VerticalAlignment = VerticalAlignment.Bottom;
-						itemPos.Ymax = grid.ActualHeight - ((Thickness)item.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance).Bottom;
-						itemPos.Ymin = itemPos.Ymax - ((FrameworkElement)item.View).ActualHeight;
-					} else {
-						itemPos.VerticalAlignment = VerticalAlignment.Top;
-						itemPos.Ymin = ((Thickness)item.Properties.GetProperty(FrameworkElement.MarginProperty).ValueOnInstance).Top;
-						itemPos.Ymax = itemPos.Ymin + ((FrameworkElement)item.View).ActualHeight;
-					}
-					
 					item.Properties.GetProperty(FrameworkElement.HorizontalAlignmentProperty).Reset();
 					item.Properties.GetProperty(FrameworkElement.VerticalAlignmentProperty).Reset();
 					item.Properties.GetProperty(FrameworkElement.MarginProperty).Reset();
@@ -380,5 +431,167 @@ namespace ICSharpCode.WpfDesign.Designer
 			
 			_context.Services.Selection.SetSelectedComponents(new []{ newPanel });
 		}
-	}
+
+	    public static void ArrangeItems(IEnumerable<DesignItem> items, ArrangeDirection arrangeDirection)
+	    {
+            var collection = items;
+
+            var _context = collection.First().Context as XamlDesignContext;
+
+            var container = collection.First().Parent;
+
+            if (collection.Any(x => x.Parent != container))
+                return;
+
+            var changeGroup = container.OpenGroup("Arrange Elements");
+
+            List<ItemPos> itemList = new List<ItemPos>();
+            foreach (var item in collection)
+            {
+                itemList.Add(GetItemPos(item));
+            }
+
+            var xmin = itemList.Min(x => x.Xmin);
+            var xmax = itemList.Max(x => x.Xmax);
+            var mpos = (xmax - xmin) / 2 + xmin;
+            var ymin = itemList.Min(x => x.Ymin);
+            var ymax = itemList.Max(x => x.Ymax);
+            var ympos = (ymax - ymin) / 2 + ymin;
+
+            foreach (var item in collection)
+	        {
+	            switch (arrangeDirection)
+	            {
+                    case ArrangeDirection.Left:
+	                {
+	                    if (container.Component is Canvas)
+	                    {
+	                        if (!item.Properties.GetAttachedProperty(Canvas.RightProperty).IsSet)
+	                        {
+	                            item.Properties.GetAttachedProperty(Canvas.LeftProperty).SetValue(xmin);
+	                        }
+	                        else
+	                        {
+	                            var pos = (double)((Panel)item.Parent.Component).ActualWidth - (xmin + (double) ((FrameworkElement) item.Component).ActualWidth);
+                                item.Properties.GetAttachedProperty(Canvas.RightProperty).SetValue(pos);
+	                        }
+	                    }
+	                    else if (container.Component is Grid)
+	                    {
+
+	                    }
+	                }
+	                    break;
+                    case ArrangeDirection.HorizontalMiddle:
+                        {
+                            if (container.Component is Canvas)
+                            {
+                                if (!item.Properties.GetAttachedProperty(Canvas.RightProperty).IsSet)
+                                {
+                                    item.Properties.GetAttachedProperty(Canvas.LeftProperty).SetValue(mpos - (((FrameworkElement)item.Component).ActualWidth) / 2);
+                                }
+                                else
+                                {
+                                    var pp = mpos - (((FrameworkElement) item.Component).ActualWidth)/2;
+                                    var pos = (double)((Panel)item.Parent.Component).ActualWidth - pp - (((FrameworkElement)item.Component).ActualWidth);
+                                    item.Properties.GetAttachedProperty(Canvas.RightProperty).SetValue(pos);
+                                }
+                            }
+                            else if (container.Component is Grid)
+                            {
+
+                            }
+                        }
+                        break;
+                    case ArrangeDirection.Right:
+                        {
+                            if (container.Component is Canvas)
+                            {
+                                if (!item.Properties.GetAttachedProperty(Canvas.RightProperty).IsSet)
+                                {
+                                    var pos = xmax - (double)((FrameworkElement)item.Component).ActualWidth;
+                                    item.Properties.GetAttachedProperty(Canvas.LeftProperty).SetValue(pos);
+                                }
+                                else
+                                {
+                                    var pos = (double)((Panel)item.Parent.Component).ActualWidth - xmax;
+                                    item.Properties.GetAttachedProperty(Canvas.RightProperty).SetValue(pos);
+                                }
+                            }
+                            else if (container.Component is Grid)
+                            {
+
+                            }
+                        }
+                        break;
+                    case ArrangeDirection.Top:
+                        {
+                            if (container.Component is Canvas)
+                            {
+                                if (!item.Properties.GetAttachedProperty(Canvas.BottomProperty).IsSet)
+                                {
+                                    item.Properties.GetAttachedProperty(Canvas.TopProperty).SetValue(ymin);
+                                }
+                                else
+                                {
+                                    var pos = (double)((Panel)item.Parent.Component).ActualHeight - (ymin + (double)((FrameworkElement)item.Component).ActualHeight);
+                                    item.Properties.GetAttachedProperty(Canvas.BottomProperty).SetValue(pos);
+                                }
+                            }
+                            else if (container.Component is Grid)
+                            {
+
+                            }
+                        }
+                        break;
+                    case ArrangeDirection.VerticalMiddle:
+                        {
+                            if (container.Component is Canvas)
+                            {
+                                if (!item.Properties.GetAttachedProperty(Canvas.BottomProperty).IsSet)
+                                {
+                                    item.Properties.GetAttachedProperty(Canvas.TopProperty).SetValue(ympos - (((FrameworkElement)item.Component).ActualHeight) / 2);
+                                }
+                                else
+                                {
+                                    var pp = mpos - (((FrameworkElement)item.Component).ActualHeight) / 2;
+                                    var pos = (double)((Panel)item.Parent.Component).ActualHeight - pp - (((FrameworkElement)item.Component).ActualHeight);
+                                    item.Properties.GetAttachedProperty(Canvas.BottomProperty).SetValue(pos);
+                                }
+                            }
+                            else if (container.Component is Grid)
+                            {
+
+                            }
+                        }
+                        break;
+                    case ArrangeDirection.Bottom:
+                        {
+                            if (container.Component is Canvas)
+                            {
+                                if (!item.Properties.GetAttachedProperty(Canvas.BottomProperty).IsSet)
+                                {
+                                    var pos = ymax - (double)((FrameworkElement)item.Component).ActualHeight;
+                                    item.Properties.GetAttachedProperty(Canvas.TopProperty).SetValue(pos);
+                                }
+                                else
+                                {
+                                    var pos = (double)((Panel)item.Parent.Component).ActualHeight - ymax;
+                                    item.Properties.GetAttachedProperty(Canvas.BottomProperty).SetValue(pos);
+                                }
+                            }
+                            else if (container.Component is Grid)
+                            {
+
+                            }
+                        }
+                        break;
+                }
+	        }
+	        changeGroup.Commit();
+
+            //_context.Services.Selection.SetSelectedComponents(null);
+            //_context.Services.Selection.SetSelectedComponents(items.ToList());
+        }
+    }
 }

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

@@ -92,6 +92,52 @@ namespace ICSharpCode.WpfDesign.Designer
             }
         }
 
-        
+        public virtual string ArrangeLeft
+        {
+            get
+            {
+                return "Arrange Left";
+            }
+        }
+
+        public virtual string ArrangeHorizontalMiddle
+        {
+            get
+            {
+                return "Horizontal centered";
+            }
+        }
+
+        public virtual string ArrangeRight
+        {
+            get
+            {
+                return "Arrange Right";
+            }
+        }
+
+        public virtual string ArrangeTop
+        {
+            get
+            {
+                return "Arrange Top";
+            }
+        }
+
+        public virtual string ArrangeVerticalMiddle
+        {
+            get
+            {
+                return "Vertical centered";
+            }
+        }
+
+        public virtual string ArrangeBottom
+        {
+            get
+            {
+                return "Arrange Bottom";
+            }
+        }
     }
 }

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

@@ -83,6 +83,7 @@
     <Compile Include="..\..\..\..\..\Main\GlobalAssemblyInfo.cs">
       <Link>Configuration\GlobalAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="ArrangeDirection.cs" />
     <Compile Include="Controls\RenderTransformOriginThumb.cs" />
     <Compile Include="Extensions\PartialPanelSelectionHandler.cs" />
     <Compile Include="Extensions\TextBlockRightClickContextMenu.xaml.cs">
@@ -95,10 +96,14 @@
     <Compile Include="Extensions\RenderTransformOriginExtension.cs" />
     <Compile Include="Extensions\RightClickContextMenuExtension.cs" />
     <Compile Include="Extensions\TextBlockRightClickContextMenuExtension.cs" />
+    <Compile Include="Extensions\ArrangeItemsContextMenuExtension.cs" />
+    <Compile Include="Extensions\ArrangeItemsContextMenu.xaml.cs">
+      <DependentUpon>ArrangeItemsContextMenu.xaml</DependentUpon>
+    </Compile>
     <Compile Include="OutlineView\OutlineNodeBase.cs" />
-    <Compile Include="Extensions\RightClickMultipleItemsContextMenuExtension.cs" />
-    <Compile Include="Extensions\RightClickMultipleItemsContextMenu.xaml.cs">
-      <DependentUpon>RightClickMultipleItemsContextMenu.xaml</DependentUpon>
+    <Compile Include="Extensions\WrapItemsContextMenuExtension.cs" />
+    <Compile Include="Extensions\WrapItemsContextMenu.xaml.cs">
+      <DependentUpon>WrapItemsContextMenu.xaml</DependentUpon>
     </Compile>
     <Compile Include="Extensions\SkewThumbExtension.cs" />
     <Compile Include="Extensions\TopLeftContainerDragHandleMultipleItems.cs" />
@@ -279,7 +284,12 @@
       <SubType>Designer</SubType>
     </Page>
     <Page Include="Extensions\RightClickContextMenu.xaml" />
-    <Page Include="Extensions\RightClickMultipleItemsContextMenu.xaml" />
+    <Page Include="Extensions\ArrangeItemsContextMenu.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Include="Extensions\WrapItemsContextMenu.xaml">
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="PropertyGrid\Editors\ColorEditor.xaml" />
     <Page Include="PropertyGrid\Editors\FlatCollectionEditor.xaml" />
     <Page Include="PropertyGrid\Editors\FormatedTextEditor\FormatedTextEditor.xaml">
@@ -425,4 +435,7 @@
   <ItemGroup>
     <Resource Include="Images\edit.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Images\grid.png" />
+  </ItemGroup>
 </Project>