- Resize snaplines bugfix

- Async PropertyGrid.Reload()

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3426 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

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

@@ -96,8 +96,10 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 				if (operation.Type == PlacementType.Resize) {
 					if (info.ResizeThumbAlignment.Vertical == VerticalAlignment.Top) {
 						bounds.Y += delta;
+						bounds.Height = Math.Max(0, bounds.Height - delta);
+					} else {
+						bounds.Height = Math.Max(0, bounds.Height + delta);
 					}
-					bounds.Height = Math.Max(0, bounds.Height + delta);
 					info.Bounds = bounds;
 				} else {
 					foreach (var item in operation.PlacedItems) {
@@ -117,8 +119,10 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 				if (operation.Type == PlacementType.Resize) {
 					if (info.ResizeThumbAlignment.Horizontal == HorizontalAlignment.Left) {
 						bounds.X += delta;
-					}
-					bounds.Width = Math.Max(0, bounds.Width + delta);
+						bounds.Width = Math.Max(0, bounds.Width - delta);
+					} else {
+						bounds.Width = Math.Max(0, bounds.Width + delta);
+					}					
 					info.Bounds = bounds;
 				} else {
 					foreach (var item in operation.PlacedItems) {

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

@@ -7,6 +7,7 @@ using System.Collections.ObjectModel;
 using System.Threading;
 using System.Globalization;
 using ICSharpCode.WpfDesign.PropertyGrid;
+using System.Windows.Threading;
 
 namespace ICSharpCode.WpfDesign.Designer.PropertyGrid
 {
@@ -89,9 +90,11 @@ namespace ICSharpCode.WpfDesign.Designer.PropertyGrid
 				return selectedItems;
 			}
 			set {
-				selectedItems = value;
-				Reload();
-				RaisePropertyChanged("SelectedItems");
+				Dispatcher.CurrentDispatcher.BeginInvoke(new Action(delegate {
+					selectedItems = value;
+					Reload();
+					RaisePropertyChanged("SelectedItems");
+				}), DispatcherPriority.Background);
 			}
 		}