Update tooltip when debugger is stepped

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2872 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Service/WindowsDebugger.cs

@@ -62,6 +62,9 @@ namespace ICSharpCode.SharpDevelop.Services
 		
 		Debugger.Process debuggedProcess;
 		
+		DynamicTreeDebuggerRow currentTooltipRow;
+		Expression             currentTooltipExpression;
+		
 		public event EventHandler<ProcessEventArgs> ProcessSelected;
 		
 		public NDebugger DebuggerCore {
@@ -291,7 +294,9 @@ namespace ICSharpCode.SharpDevelop.Services
 				return null;
 			} else {
 				try {
-					return new DebuggerGridControl(new DynamicTreeDebuggerRow(DebuggedProcess, new ValueNode(val)));
+					currentTooltipExpression = val.Expression;
+					currentTooltipRow = new DynamicTreeDebuggerRow(DebuggedProcess, new ValueNode(val));
+					return new DebuggerGridControl(currentTooltipRow);
 				} catch (AbortedBecauseDebugeeStateExpiredException) {
 					return null;
 				}
@@ -473,6 +478,13 @@ namespace ICSharpCode.SharpDevelop.Services
 		void debuggedProcess_DebuggeeStateChanged(object sender, ProcessEventArgs e)
 		{
 			JumpToCurrentLine();
+			if (currentTooltipRow != null && currentTooltipRow.IsShown) {
+				AbstractNode updatedNode = Debugger.AddIn.TreeModel.Util.CreateNode(currentTooltipExpression);
+				try {
+					currentTooltipRow.SetContentRecursive(updatedNode);
+				} catch (AbortedBecauseDebugeeStateExpiredException) {
+				}
+			}
 		}
 		
 		void debuggedProcess_DebuggingResumed(object sender, ProcessEventArgs e)

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/TreeModel/Adapters/DynamicTreeDebuggerRow.cs

@@ -29,12 +29,22 @@ namespace Debugger.AddIn.TreeModel
 		
 		AbstractNode content;
 		
+		bool isShown;
+		bool isExpanded;
 		bool childsLoaded;
 		
 		public AbstractNode Content {
 			get { return content; }
 		}
 		
+		public bool IsShown {
+			get { return isShown; }
+		}
+		
+		public bool IsExpanded {
+			get { return isExpanded; }
+		}
+		
 		public DynamicTreeDebuggerRow(Process process, AbstractNode content)
 		{
 			this.process = process;
@@ -45,6 +55,11 @@ namespace Debugger.AddIn.TreeModel
 			this[3].FinishLabelEdit += OnLabelEdited;
 			this[3].MouseDown += OnMouseDown;
 			
+			this.Expanded += delegate { isExpanded = true; };
+			this.Collapsed += delegate { isExpanded = false; };
+			this.Shown += delegate { isShown = true; };
+			this.Hidden += delegate { isShown = false; };
+			
 			SetContentRecursive(content);
 		}
 		
@@ -61,8 +76,10 @@ namespace Debugger.AddIn.TreeModel
 			this.ShowMinusWhileExpanded = true;
 			
 			childsLoaded = false;
-			if (content.ChildNodes != null && this.ChildRows.Count > 0) {
+			if (content.ChildNodes != null && isExpanded) {
 				LoadChilds();
+			} else {
+				this.ChildRows.Clear();
 			}
 			
 			// Repaint and process user commands