Collapse all in project browser pad and class browser pad

data/resources/StringResources.resx

@@ -3583,6 +3583,9 @@ You can also choose to store the setting in the .user-file instead of the projec
   <data name="Global.YesToAll" xml:space="preserve">
     <value>Yes to All</value>
   </data>
+  <data name="ProjectBrowser.Toolbar.CollapseAll" xml:space="preserve">
+    <value>Collapse all nodes</value>
+  </data>
   <data name="Gui.ProjectBrowser.FileInUseError" xml:space="preserve">
     <value>File or directory name is already in use, choose a different one.</value>
   </data>

data/resources/image/BitmapResources/BitmapResources.res

@@ -29,6 +29,7 @@ ProjectBrowser.MissingSolution        = ProjectBrowserIcons\MissingSolution.png
 ProjectBrowser.Solution               = ProjectBrowserIcons\Solution.png
 ProjectBrowser.Toolbar.Refresh         = ProjectBrowserIcons\Toolbar.Refresh.png
 ProjectBrowser.Toolbar.ShowHiddenFiles = ProjectBrowserIcons\Toolbar.ShowHiddenFiles.png
+ProjectBrowser.Toolbar.Collapse		  = ProjectBrowserIcons\Toolbar.Collapse.png
 ProjectBrowser.SolutionFolder.Closed = ProjectBrowserIcons\SolutionFolder.Closed.png
 ProjectBrowser.SolutionFolder.Open   = ProjectBrowserIcons\SolutionFolder.Open.png
 ProjectBrowser.SolutionFolder.CreateNew   = ProjectBrowserIcons\SolutionFolder.CreateNew.png

src/Main/Base/Project/ICSharpCode.SharpDevelop.addin

@@ -182,6 +182,11 @@
 			             icon    = "ProjectBrowser.Toolbar.Refresh"
 			             tooltip = "${res:AddIns.HtmlHelp2.Refresh}"
 			             class   = "ICSharpCode.SharpDevelop.Project.Commands.RefreshProjectBrowser"/>
+			<ToolbarItem id = "PropertySeparator" type = "Separator"/>
+			<ToolbarItem id      = "Collapse"
+			             icon    = "ProjectBrowser.Toolbar.Collapse"
+			             tooltip = "${res:ProjectBrowser.Toolbar.CollapseAll}"
+			             class   = "ICSharpCode.SharpDevelop.Project.Commands.CollapseAllProjectBrowser"/>
 		</Condition>
 	</Path>
 	
@@ -768,6 +773,11 @@
 			          label = "${res:MainWindow.Windows.ClassBrowser.ClassViewSettings.ShowOtherMembers.Label}"
 			          class = "ICSharpCode.SharpDevelop.Gui.ClassBrowser.ShowOtherMembers"/>
 		</ToolbarItem>
+		<ToolbarItem id = "NavigationSeparator" type  = "Separator"/>
+		<ToolbarItem id      = "Collapse"
+		             icon    = "ProjectBrowser.Toolbar.Collapse"
+		             tooltip = "${res:ProjectBrowser.Toolbar.CollapseAll}"
+		             class   = "ICSharpCode.SharpDevelop.Gui.ClassBrowser.ClassBrowserCollapseAll"/>
 	</Path>
 	
 	<Path name = "/SharpDevelop/Pads/ClassBrowser/Searchbar">

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

@@ -172,6 +172,16 @@ namespace ICSharpCode.SharpDevelop.Gui.ClassBrowser
 			UpdateToolbars();
 		}
 		
+		public void CollapseAll() 
+		{
+			if (this.classBrowserTreeView == null) return;
+			if (this.classBrowserTreeView.Nodes == null || this.classBrowserTreeView.Nodes.Count == 0) return;
+			
+			foreach(TreeNode node in this.classBrowserTreeView.Nodes) {
+				node.Collapse(false);
+			}
+		}
+		
 		void ClassBrowserTreeViewAfterSelect(object sender, TreeViewEventArgs e)
 		{
 			if (navigateBack) {

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

@@ -34,6 +34,17 @@ namespace ICSharpCode.SharpDevelop.Gui.ClassBrowser
 		}
 	}
 	
+	public class ClassBrowserCollapseAll : AbstractMenuCommand
+	{
+		public override bool IsEnabled {
+			get { return true; }
+		}
+		public override void Run()
+		{
+			ClassBrowserPad.Instance.CollapseAll();
+		}
+	}
+	
 	#region Class browser filter
 	public class SelectClassBrowserFilter : AbstractMenuCommand
 	{

src/Main/Base/Project/Src/Gui/Pads/ProjectBrowser/Commands/ToolbarCommands.cs

@@ -37,4 +37,12 @@ namespace ICSharpCode.SharpDevelop.Project.Commands
 			ProjectBrowserPad.Instance.ProjectBrowserControl.RefreshView();
 		}
 	}
+	
+	public class CollapseAllProjectBrowser : AbstractMenuCommand
+	{
+		public override void Run()
+		{
+			ProjectBrowserPad.Instance.ProjectBrowserControl.ExpandOrCollapseAll(false);
+		}
+	}
 }

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

@@ -485,5 +485,22 @@ namespace ICSharpCode.SharpDevelop.Project
 			this.ResumeLayout(false);
 		}
 		#endregion
+		
+		public void ExpandOrCollapseAll(bool expand)
+		{
+			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();
+				}
+				else {
+					node.Collapse(false);
+				}
+			}
+			
+			this.treeView.Nodes[0].Expand();
+		}
 	}
 }