Show a Border around multiple Selected Items and a TopLeftContainerDragHandle (multipleItems)

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Controls/PanelMoveAdorner.cs

@@ -54,7 +54,7 @@ namespace ICSharpCode.WpfDesign.Designer.Controls
 		protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
 		{
 			e.Handled = true;
-			item.Services.Selection.SetSelectedComponents(new DesignItem [] { item }, SelectionTypes.Auto);
+			//item.Services.Selection.SetSelectedComponents(new DesignItem [] { item }, SelectionTypes.Auto);
 			new DragMoveMouseGesture(item, false).Start(item.Services.DesignPanel, e);
 		}
 		

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

@@ -32,9 +32,9 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 {
 	
 	/// <summary>
-	/// The drag handle displayed for panels.
+	/// The drag handle displayed for Framework Elements
 	/// </summary>
-	[ExtensionServer(typeof(PrimarySelectionExtensionServer))]
+	[ExtensionServer(typeof(OnlyOneItemSelectedExtensionServer))]
 	[ExtensionFor(typeof(FrameworkElement))]
 	public class TopLeftContainerDragHandle : AdornerProvider
 	{
@@ -44,7 +44,7 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 			ContainerDragHandle rect = new ContainerDragHandle();
 			
 			rect.PreviewMouseDown += delegate(object sender, MouseButtonEventArgs e) {
-				Services.Selection.SetSelectedComponents(new DesignItem[] { this.ExtendedItem }, SelectionTypes.Auto);
+				//Services.Selection.SetSelectedComponents(new DesignItem[] { this.ExtendedItem }, SelectionTypes.Auto);
 				new DragMoveMouseGesture(this.ExtendedItem, false).Start(this.ExtendedItem.Services.DesignPanel,e);
 				e.Handled=true;
 			};

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

@@ -0,0 +1,93 @@
+// 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.Controls;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Shapes;
+using ICSharpCode.WpfDesign.Adorners;
+using ICSharpCode.WpfDesign.Extensions;
+
+using ICSharpCode.WpfDesign.Designer.Services;
+using ICSharpCode.WpfDesign.Designer.Controls;
+
+namespace ICSharpCode.WpfDesign.Designer.Extensions
+{
+	
+	/// <summary>
+	/// The drag handle displayed for Framework Elements
+	/// </summary>
+	[ExtensionServer(typeof(PrimarySelectionButOnlyWhenMultipleSelectedExtensionServer))]
+	[ExtensionFor(typeof(FrameworkElement))]
+	public class TopLeftContainerDragHandleMultipleItems : AdornerProvider
+	{
+		/// <summary/>
+		public TopLeftContainerDragHandleMultipleItems()
+		{ }
+		
+		protected override void OnInitialized()
+		{
+			base.OnInitialized();
+			
+			ContainerDragHandle rect = new ContainerDragHandle();
+			
+			rect.PreviewMouseDown += delegate(object sender, MouseButtonEventArgs e) {
+				//Services.Selection.SetSelectedComponents(new DesignItem[] { this.ExtendedItem }, SelectionTypes.Auto);
+				new DragMoveMouseGesture(this.ExtendedItem, false).Start(this.ExtendedItem.Services.DesignPanel,e);
+				e.Handled=true;
+			};
+			
+			var items = this.ExtendedItem.Services.Selection.SelectedItems;
+			
+			double minX = 0;
+			double minY = 0;
+			double maxX = 0;
+			double maxY = 0;
+			
+			foreach (DesignItem di in items) {
+				Point relativeLocation = di.View.TranslatePoint(new Point(0, 0), this.ExtendedItem.View);
+				
+				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;
+			}
+			
+			Rectangle rect2 = new Rectangle() {
+				Width = (maxX - minX) + 4,
+				Height = (maxY - minY) + 4,
+				Stroke = Brushes.Black,
+				StrokeThickness = 2,
+				StrokeDashArray = new DoubleCollection(){ 2, 2 },
+			};
+			
+			RelativePlacement p = new RelativePlacement(HorizontalAlignment.Left, VerticalAlignment.Top);
+			p.XOffset = minX - 3;
+			p.YOffset = minY - 3;
+			
+			RelativePlacement p2 = new RelativePlacement(HorizontalAlignment.Left, VerticalAlignment.Top);
+			p2.XOffset = (minX + rect2.Width) - 2;
+			p2.YOffset = (minY + rect2.Height) - 2;
+						
+			AddAdorner(p, AdornerOrder.Background, rect);
+			AddAdorner(p2, AdornerOrder.Background, rect2);
+		}
+	}	
+}

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

@@ -88,6 +88,7 @@
     <Compile Include="Extensions\RenderTransformOriginExtension.cs" />
     <Compile Include="Extensions\RightClickContextMenuExtension.cs" />
     <Compile Include="Extensions\SkewThumbExtension.cs" />
+    <Compile Include="Extensions\TopLeftContainerDragHandleMultipleItems.cs" />
     <Compile Include="PropertyGrid\Editors\FlatCollectionEditor.xaml.cs">
       <DependentUpon>FlatCollectionEditor.xaml</DependentUpon>
       <SubType>Code</SubType>