Ported Fidalgo rev. 2115 (Ivo Kovacka): fixed some minor problems where object were staying in memory (missing dispose calls, event handlers not being deregistered).

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@891 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/Services/DefaultServiceContainer.cs

@@ -8,7 +8,6 @@
 using System;
 using System.Reflection;
 using System.Collections;
-using System.Collections.Specialized;
 using System.Drawing;
 using System.ComponentModel;
 using System.ComponentModel.Design;
@@ -20,7 +19,8 @@ namespace ICSharpCode.FormsDesigner.Services
 	public class DefaultServiceContainer : IServiceContainer, IDisposable
 	{
 		IServiceContainer serviceContainer;
-		ArrayList         services = new ArrayList();
+		Hashtable         services = new Hashtable();
+		bool              inDispose = false;
 		
 		public DefaultServiceContainer()
 		{
@@ -35,12 +35,13 @@ namespace ICSharpCode.FormsDesigner.Services
 		#region System.IDisposable interface implementation
 		public virtual void Dispose()
 		{
-			foreach (object o in services) {
+			inDispose = true;
-				if (o == this) {
+			foreach (DictionaryEntry o in services) {
+				if (o.Value == this) {
 					continue;
 				}
 				//  || o.GetType().Assembly != Assembly.GetCallingAssembly()
-				IDisposable disposeMe = o as IDisposable;
+				IDisposable disposeMe = o.Value as IDisposable;
 				if (disposeMe != null) {
 					try {
 						disposeMe.Dispose();
@@ -51,18 +52,27 @@ namespace ICSharpCode.FormsDesigner.Services
 			}
 			services.Clear();
 			services = null;
+			inDispose = false;
 		}
 		#endregion
 		
 		#region System.ComponentModel.Design.IServiceContainer interface implementation
 		public void RemoveService(System.Type serviceType, bool promote)
 		{
+			if (inDispose)
+				return;
 			serviceContainer.RemoveService(serviceType, promote);
+			if (services.Contains(serviceType))
+				services.Remove(serviceType);
 		}
 		
 		public void RemoveService(System.Type serviceType)
 		{
+			if (inDispose == true)
+				return;
 			serviceContainer.RemoveService(serviceType);
+			if (services.Contains(serviceType))
+				services.Remove(serviceType);
 		}
 		
 		public void AddService(System.Type serviceType, System.ComponentModel.Design.ServiceCreatorCallback callback, bool promote)
@@ -83,7 +93,7 @@ namespace ICSharpCode.FormsDesigner.Services
 		{
 			if (IsServiceMissing(serviceType)) {
 				serviceContainer.AddService(serviceType, serviceInstance, promote);
-				services.Add(serviceInstance);
+				services.Add(serviceType, serviceInstance);
 			}
 		}
 		
@@ -91,7 +101,7 @@ namespace ICSharpCode.FormsDesigner.Services
 		{
 			if (IsServiceMissing(serviceType)) {
 				serviceContainer.AddService(serviceType, serviceInstance);
-				services.Add(serviceInstance);
+				services.Add(serviceType, serviceInstance);
 			}
 		}
 		#endregion

src/AddIns/DisplayBindings/FormsDesigner/Project/Src/Services/ToolboxService.cs

@@ -412,10 +412,21 @@ namespace ICSharpCode.FormsDesigner.Services
 		
 		public void RemoveCreator(string format)
 		{
+			RemoveCreator(format, null);
 		}
 		
 		public void RemoveCreator(string format, IDesignerHost host)
 		{
+			if (host == null) {
+				creators.Remove(format);
+			} else {
+				HybridDictionary creatorsDict = creatorsByHost[host] as HybridDictionary;
+				if (creatorsDict != null) {
+					creatorsDict.Remove(format);
+					if (creatorsDict.Count == 0)
+						creatorsByHost.Remove(host);
+				}
+			}
 		}
 		
 		public void RemoveToolboxItem(ToolboxItem toolboxItem)

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/HighlightingStrategy/DefaultHighlightingStrategy.cs

@@ -271,6 +271,7 @@ namespace ICSharpCode.TextEditor.Document
 			}
 			document.RequestUpdate(new TextAreaUpdate(TextAreaUpdateType.WholeTextArea));
 			document.CommitUpdate();
+			currentLine = null;
 		}
 		
 		bool MarkTokensInLine(IDocument document, int lineNumber, ref bool spanChanged)
@@ -412,6 +413,7 @@ namespace ICSharpCode.TextEditor.Document
 				
 			}
 			document.CommitUpdate();
+			currentLine = null;
 		}
 		
 		// Span state variables

src/Libraries/ICSharpCode.TextEditor/Project/Src/Document/Selection/SelectionManager.cs

@@ -16,7 +16,7 @@ namespace ICSharpCode.TextEditor.Document
 	/// <summary>
 	/// This class manages the selections in a document.
 	/// </summary>
-	public class SelectionManager
+	public class SelectionManager : IDisposable
 	{
 		IDocument document;
 		List<ISelection> selectionCollection = new List<ISelection>();
@@ -71,6 +71,14 @@ namespace ICSharpCode.TextEditor.Document
 			document.DocumentChanged += new DocumentEventHandler(DocumentChanged);
 		}
 		
+		public void Dispose()
+		{
+			if (this.document != null) {
+				document.DocumentChanged -= new DocumentEventHandler(DocumentChanged);
+				this.document = null;
+			}
+		}
+		
 		void DocumentChanged(object sender, DocumentEventArgs e)
 		{
 			if (e.Text == null) {
@@ -247,7 +255,7 @@ namespace ICSharpCode.TextEditor.Document
 			}
 			ClearSelection();
 			if (offset >= 0) {
-//             TODO:
+				//             TODO:
 //				document.Caret.Offset = offset;
 			}
 			if (offset != -1) {

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/Caret.cs

@@ -132,6 +132,15 @@ namespace ICSharpCode.TextEditor
 			textArea.LostFocus += new EventHandler(LostFocus);
 		}
 		
+		public void Dispose()
+		{
+			textArea.GotFocus  -= new EventHandler(GotFocus);
+			textArea.LostFocus -= new EventHandler(LostFocus);
+			textArea = null;
+//			DestroyCaret();
+//			caretCreated = false;
+		}
+		
 		public Point ValidatePosition(Point pos)
 		{
 			int line   = Math.Max(0, Math.Min(textArea.Document.TotalNumberOfLines - 1, pos.Y));
@@ -259,12 +268,6 @@ namespace ICSharpCode.TextEditor
 			}
 		}
 		
-		public void Dispose()
-		{
-//			DestroyCaret();
-//			caretCreated = false;
-		}
-		
 		#region Native caret functions
 		[DllImport("User32.dll")]
 		static extern bool CreateCaret(IntPtr hWnd, int hBitmap, int nWidth, int nHeight);

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/GutterMargin.cs

@@ -21,7 +21,7 @@ namespace ICSharpCode.TextEditor
 	/// <summary>
 	/// This class views the line numbers and folding markers.
 	/// </summary>
-	public class GutterMargin : AbstractMargin
+	public class GutterMargin : AbstractMargin, IDisposable
 	{
 		StringFormat numberStringFormat = (StringFormat)StringFormat.GenericTypographic.Clone();
 		
@@ -34,6 +34,10 @@ namespace ICSharpCode.TextEditor
 			cursorStream.Close();
 		}
 		
+		public void Dispose()
+		{
+			numberStringFormat.Dispose();
+		}
 		
 		public override Cursor Cursor {
 			get {

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextArea.cs

@@ -614,9 +614,10 @@ namespace ICSharpCode.TextEditor
 			motherTextEditorControl.EndUpdate();
 		}
 		
-		public bool EnableCutOrPaste
+		public bool EnableCutOrPaste {
-		{
 			get {
+				if (motherTextAreaControl == null)
+					return false;
 				if (TextEditorProperties.UseCustomLine == true) {
 					if (SelectionManager.HasSomethingSelected == true) {
 						if (Document.CustomLineManager.IsReadOnly(SelectionManager.SelectionCollection[0], false))
@@ -759,10 +760,22 @@ namespace ICSharpCode.TextEditor
 			if (disposing) {
 				if (!disposed) {
 					disposed = true;
+					if (caret != null) {
 						caret.PositionChanged -= new EventHandler(SearchMatchingBracket);
+						caret.Dispose();
+					}
+					if (selectionManager != null) {
+						selectionManager.Dispose();
+					}
 					Document.TextContentChanged -= new EventHandler(TextContentChanged);
 					Document.FoldingManager.FoldingsChanged -= new EventHandler(DocumentFoldingsChanged);
-					caret.Dispose();
+					motherTextAreaControl = null;
+					motherTextEditorControl = null;
+					foreach (AbstractMargin margin in leftMargins) {
+						if (margin is IDisposable)
+							(margin as IDisposable).Dispose();
+					}
+					textView.Dispose();
 				}
 			}
 		}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextAreaClipboardHandler.cs

@@ -32,7 +32,7 @@ namespace ICSharpCode.TextEditor
 		
 		public bool EnableCut {
 			get {
-				return true; //textArea.SelectionManager.HasSomethingSelected;
+				return textArea.EnableCutOrPaste; //textArea.SelectionManager.HasSomethingSelected;
 			}
 		}
 		
@@ -54,7 +54,7 @@ namespace ICSharpCode.TextEditor
 		
 		public bool EnableDelete {
 			get {
-				return textArea.SelectionManager.HasSomethingSelected;
+				return textArea.SelectionManager.HasSomethingSelected && textArea.EnableCutOrPaste;
 			}
 		}
 		

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextAreaControl.cs

@@ -62,13 +62,17 @@ namespace ICSharpCode.TextEditor
 		[Browsable(false)]
 		public IDocument Document {
 			get {
+				if (motherTextEditorControl != null)
 					return motherTextEditorControl.Document;
+				return null;
 			}
 		}
 		
 		public ITextEditorProperties TextEditorProperties {
 			get {
+				if (motherTextEditorControl != null)
 					return motherTextEditorControl.TextEditorProperties;
+				return null;
 			}
 		}
 		
@@ -117,6 +121,19 @@ namespace ICSharpCode.TextEditor
 				if (!disposed) {
 					disposed = true;
 					Document.DocumentChanged -= new DocumentEventHandler(AdjustScrollBars);
+					motherTextEditorControl = null;
+					if (vScrollBar != null) {
+						vScrollBar.Dispose();
+						vScrollBar = null;
+					}
+					if (hScrollBar != null) {
+						hScrollBar.Dispose();
+						hScrollBar = null;
+					}
+					if (hRuler != null) {
+						hRuler.Dispose();
+						hRuler = null;
+					}
 				}
 			}
 			base.Dispose(disposing);

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextEditorControl.cs

@@ -168,6 +168,32 @@ namespace ICSharpCode.TextEditor
 			Document.HighlightingStrategy = HighlightingStrategyFactory.CreateHighlightingStrategy(name);
 		}
 		
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing) {
+				if (printDocument != null) {
+					printDocument.BeginPrint -= new PrintEventHandler(this.BeginPrint);
+					printDocument.PrintPage  -= new PrintPageEventHandler(this.PrintPage);
+					printDocument = null;
+				}
+				Document.UndoStack.ClearAll();
+				Document.UpdateCommited -= new EventHandler(CommitUpdateRequested);
+				if (textAreaPanel != null) {
+					if (secondaryTextArea != null) {
+						secondaryTextArea.Dispose();
+						textAreaSplitter.Dispose();
+						secondaryTextArea = null;
+						textAreaSplitter  = null;
+					}
+					if (primaryTextArea != null) {
+						primaryTextArea.Dispose();
+					}
+					textAreaPanel.Dispose();
+					textAreaPanel = null;
+				}
+			}
+			base.Dispose(disposing);
+		}
 		
 		#region Update Methods
 		public override void EndUpdate()

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextEditorControlBase.cs

@@ -724,6 +724,8 @@ namespace ICSharpCode.TextEditor
 		{
 			if (disposing) {
 				HighlightingManager.Manager.ReloadSyntaxHighlighting -= new EventHandler(ReloadHighlighting);
+				document.HighlightingStrategy = null;
+				document.UndoStack.TextEditorControl = null;
 			}
 			base.Dispose(disposing);
 		}

src/Libraries/ICSharpCode.TextEditor/Project/Src/Gui/TextView.cs

@@ -29,7 +29,7 @@ namespace ICSharpCode.TextEditor
 	/// <summary>
 	/// This class paints the textarea.
 	/// </summary>
-	public class TextView : AbstractMargin
+	public class TextView : AbstractMargin, IDisposable
 	{
 		int          fontHeight;
 		//Hashtable    charWitdh           = new Hashtable();
@@ -37,6 +37,12 @@ namespace ICSharpCode.TextEditor
 		Highlight    highlight;
 		int          physicalColumn = 0; // used for calculating physical column during paint
 		
+		public void Dispose()
+		{
+			measureCache.Clear();
+			measureStringFormat.Dispose();
+		}
+		
 		public Highlight Highlight {
 			get {
 				return highlight;

src/Main/Base/Project/Src/Gui/AbstractBaseViewContent.cs

@@ -53,6 +53,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		
 		public virtual void Dispose()
 		{
+			workbenchWindow = null;
 		}
 		
 		protected virtual void OnWorkbenchWindowChanged(EventArgs e)

src/Main/Base/Project/Src/Gui/Workbench/Layouts/SdiWorkspaceLayout.cs

@@ -542,6 +542,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		public void CloseWindowEvent(object sender, EventArgs e)
 		{
 			SdiWorkspaceWindow f = (SdiWorkspaceWindow)sender;
+			f.CloseEvent -= CloseWindowEvent;
 			if (f.ViewContent != null) {
 				((IWorkbench)wbForm).CloseContent(f.ViewContent);
 				if (f == oldSelectedWindow) {

src/Main/Base/Project/Src/Gui/Workbench/Layouts/SdiWorkspaceWindow.cs

@@ -95,9 +95,18 @@ namespace ICSharpCode.SharpDevelop.Gui
 			Show();
 		}
 		
-		protected override void Dispose(bool isDisposing)
+		protected override void Dispose(bool disposing)
 		{
-			base.Dispose(isDisposing);
+			base.Dispose(disposing);
+			
+			if (disposing) {
+				if (content != null)
+					DetachContent();
+				if (this.TabPageContextMenu != null) {
+					this.TabPageContextMenu.Dispose();
+					this.TabPageContextMenu = null;
+				}
+			}
 		}
 		
 		public SdiWorkspaceWindow(IViewContent content)

src/Main/Base/Project/Src/Project/AbstractProject.cs

@@ -33,14 +33,14 @@ namespace ICSharpCode.SharpDevelop.Project
 		protected string fileName;
 		protected string language;
 		
-		static string GetConfigurationNameFromKey(string key)
+		public static string GetConfigurationNameFromKey(string key)
 		{
 			return key.Substring(0, key.IndexOf('|'));
 		}
 		
-		static string GetPlatformNameFromKey(string key)
+		public static string GetPlatformNameFromKey(string key)
 		{
-			return key.Substring(key.LastIndexOf('|') + 1);
+			return key.Substring(key.IndexOf('|') + 1);
 		}
 		
 		public string[] GetConfigurationNames()

src/Main/Base/Project/Src/TextEditor/Gui/Editor/QuickClassBrowserPanel.cs

@@ -202,6 +202,8 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 		{
 			if (disposing) {
 				this.textAreaControl.ActiveTextAreaControl.Caret.PositionChanged -= new EventHandler(CaretPositionChanged);
+				this.membersComboBox.Dispose();
+				this.classComboBox.Dispose();
 			}
 			base.Dispose(disposing);
 		}

src/Main/Base/Project/Src/TextEditor/Gui/Editor/SharpDevelopTextAreaControl.cs

@@ -50,7 +50,6 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 			Document.BookmarkManager.Removed += new BookmarkEventHandler(BookmarkRemoved);
 			GenerateEditActions();
 			
-			TextAreaDragDropHandler dragDropHandler = new TextAreaDragDropHandler();
 			TextEditorProperties = new SharpDevelopTextEditorProperties();
 		}
 		
@@ -90,7 +89,14 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 		{
 			base.Dispose(disposing);
 			if (disposing) {
+				if (errorDrawer != null) {
 					errorDrawer.Dispose();
+					errorDrawer = null;
+				}
+				if (quickClassBrowserPanel != null) {
+					quickClassBrowserPanel.Dispose();
+					quickClassBrowserPanel = null;
+				}
 				CloseCodeCompletionWindow(this, EventArgs.Empty);
 				CloseInsightWindow(this, EventArgs.Empty);
 			}

src/Main/Base/Project/Src/TextEditor/Gui/Editor/TextEditorDisplayBinding.cs

@@ -89,8 +89,8 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 		}
 		
 		// KSL Start, New lines
-		FileSystemWatcher watcher;
+		protected FileSystemWatcher watcher;
-		bool wasChangedExternally = false;
+		protected bool wasChangedExternally = false;
 		// KSL End
 		
 		public bool EnableUndo {
@@ -223,7 +223,7 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 			}
 		}
 		
-		void SetWatcher()
+		protected void SetWatcher()
 		{
 			try {
 				if (this.watcher == null) {
@@ -237,10 +237,13 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 				this.watcher.NotifyFilter = NotifyFilters.LastWrite;
 				this.watcher.EnableRaisingEvents = true;
 			} catch (Exception) {
+				if (watcher != null) {
+					watcher.Dispose();
+				}
 				watcher = null;
 			}
 		}
-		void GotFocusEvent(object sender, EventArgs e)
+		protected virtual void GotFocusEvent(object sender, EventArgs e)
 		{
 			if (wasChangedExternally) {
 				wasChangedExternally = false;
@@ -288,12 +291,15 @@ namespace ICSharpCode.SharpDevelop.DefaultEditor.Gui.Editor
 		
 		public override void Dispose()
 		{
-			base.Dispose();
+			if (WorkbenchSingleton.MainForm != null) {
-			((Form)ICSharpCode.SharpDevelop.Gui.WorkbenchSingleton.Workbench).Activated -= new EventHandler(GotFocusEvent);
+				WorkbenchSingleton.MainForm.Activated -= new EventHandler(GotFocusEvent);
+			}
 			if (this.watcher != null) {
 				this.watcher.Dispose();
+				this.watcher = null;
 			}
 			textAreaControl.Dispose();
+			base.Dispose();
 		}
 		
 		public override bool IsReadOnly {