add collapse all to unit tests pad

src/AddIns/Analysis/UnitTesting/Src/EmptyUnitTestsPad.cs

@@ -29,5 +29,7 @@ namespace ICSharpCode.UnitTesting
 		{
 			return null;
 		}
+		
+		public void CollapseAll() { }
 	}
 }

src/AddIns/Analysis/UnitTesting/Src/IUnitTestsPad.cs

@@ -13,5 +13,6 @@ namespace ICSharpCode.UnitTesting
 		void ResetTestResults();
 		IProject[] GetProjects();
 		TestProject GetTestProject(IProject project);		
+		void CollapseAll();
 	}
 }

src/AddIns/Analysis/UnitTesting/Src/UnitTestCommands.cs

@@ -2,6 +2,7 @@
 // This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
 
 using System;
+using System.Windows.Forms;
 using ICSharpCode.Core;
 using ICSharpCode.SharpDevelop;
 using ICSharpCode.SharpDevelop.Dom;
@@ -99,4 +100,20 @@ namespace ICSharpCode.UnitTesting
 			}
 		}
 	}
+	
+	public class CollapseAllTestsCommand : AbstractMenuCommand
+	{
+		public override void Run()
+		{
+			if (!(this.Owner is TreeView))
+				return;
+			
+			var treeView = (TreeView)this.Owner;
+			treeView.CollapseAll();
+			
+			if (treeView.Nodes.Count > 0) {
+				treeView.Nodes[0].Expand();
+			}
+		}
+	}
 }

src/AddIns/Analysis/UnitTesting/Src/UnitTestsPad.cs

@@ -120,6 +120,17 @@ namespace ICSharpCode.UnitTesting
 			ToolbarService.UpdateToolbar(toolStrip);
 		}
 		
+		/// <summary>
+		/// Collapses all nodes.
+		/// </summary>
+		public void CollapseAll()
+		{
+			if (treeView == null || treeView.Nodes == null || treeView.Nodes.Count == 0)
+				return;
+			
+			treeView.CollapseAll();
+		}
+		
 		/// <summary>
 		/// Called when a solution has been loaded.
 		/// </summary>

src/AddIns/Analysis/UnitTesting/UnitTesting.addin

@@ -129,6 +129,11 @@
 			             icon="Icons.16x16.Reference"
 			             tooltip="${res:NUnitPad.NUnitPadContent.ReferenceItem}"
 			             class="ICSharpCode.UnitTesting.AddNUnitReferenceCommand"/>
+			<ToolbarItem id = "CollapseSeparator" type = "Separator"/>
+			<ToolbarItem id      = "Collapse"
+			             icon    = "ProjectBrowser.Toolbar.Collapse"
+			             tooltip = "${res:ProjectBrowser.Toolbar.CollapseAll}"
+			             class   = "ICSharpCode.UnitTesting.CollapseAllTestsCommand"/>
 		</Condition>
 	</Path>
 	

src/Main/Base/Project/Src/Gui/Pads/ClassBrowser/ClassBrowser.cs

@@ -177,9 +177,7 @@ namespace ICSharpCode.SharpDevelop.Gui.ClassBrowser
 			if (this.classBrowserTreeView == null) return;
 			if (this.classBrowserTreeView.Nodes == null || this.classBrowserTreeView.Nodes.Count == 0) return;
 			
-			foreach(TreeNode node in this.classBrowserTreeView.Nodes) {
+			this.classBrowserTreeView.CollapseAll();
-				node.Collapse(false);
-			}
 		}
 		
 		void ClassBrowserTreeViewAfterSelect(object sender, TreeViewEventArgs e)

src/Main/Base/Project/Src/Gui/Pads/ProjectBrowser/ProjectBrowserControl.cs

@@ -491,13 +491,11 @@ namespace ICSharpCode.SharpDevelop.Project
 			if (this.treeView == null) return;
 			if (this.treeView.Nodes == null || this.treeView.Nodes.Count == 0) return;
 			
-			foreach(TreeNode node in this.treeView.Nodes) {
 			if (expand) {
-					node.ExpandAll();
+				this.treeView.ExpandAll();
 			}
 			else {
-					node.Collapse(false);
+				this.treeView.CollapseAll();
-				}
 			}
 			
 			this.treeView.Nodes[0].Expand();