Refresh local variables in batches to reduce flickering

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/2.0@1400 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Debugger.AddIn.csproj

@@ -71,6 +71,7 @@
     <Compile Include="Src\Pads\DebuggerPad.cs" />
     <Compile Include="Src\Pads\CallStackPad.Menu.cs" />
     <Compile Include="Src\Pads\RunningThreadsPad.Menu.cs" />
+    <Compile Include="Src\Pads\DebuggerTreeListView.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\..\..\Libraries\ICSharpCode.TextEditor\Project\ICSharpCode.TextEditor.csproj">

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Pads/DebuggerTreeListView.cs

@@ -0,0 +1,37 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="David Srbecký" email="dsrbecky@gmail.com"/>
+//     <version>$Revision: 1254 $</version>
+// </file>
+
+using System;
+using System.Windows.Forms;
+
+namespace ICSharpCode.SharpDevelop.Gui.Pads
+{
+	public class DebuggerTreeListView: TreeListView
+	{
+		static int updateInterval = 100; // ms
+		
+		Timer refreshingTimer;
+		
+		public DebuggerTreeListView()
+		{
+			refreshingTimer = new Timer();
+			refreshingTimer.Interval = updateInterval;
+			refreshingTimer.Tick += delegate {
+				refreshingTimer.Enabled = false;
+				this.EndUpdate();
+			};
+		}
+		
+		public void DelayRefresh()
+		{
+			if (!refreshingTimer.Enabled) {
+				this.BeginUpdate();
+				refreshingTimer.Enabled = true;
+			}
+		}
+	}
+}

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Pads/LocalVarPad.cs

@@ -22,7 +22,7 @@ namespace ICSharpCode.SharpDevelop.Gui.Pads
 {
 	public class LocalVarPad : DebuggerPad
 	{
-		TreeListView localVarList;
+		DebuggerTreeListView localVarList;
 		
 		ColumnHeader name = new ColumnHeader();
 		ColumnHeader val  = new ColumnHeader();
@@ -37,7 +37,7 @@ namespace ICSharpCode.SharpDevelop.Gui.Pads
 		protected override void InitializeComponents()
 		{
 			//iconsService = (ClassBrowserIconsService)ServiceManager.Services.GetService(typeof(ClassBrowserIconsService));
-			localVarList = new TreeListView();
+			localVarList = new DebuggerTreeListView();
 			localVarList.SmallImageList = DebuggerIcons.ImageList;
 			localVarList.ShowPlusMinus = true;
 			localVarList.FullRowSelect = true;

src/AddIns/Misc/Debugger/Debugger.AddIn/Project/Src/Pads/TreeListViewDebuggerItem.cs

@@ -59,23 +59,20 @@ namespace ICSharpCode.SharpDevelop.Gui.Pads
 		
 		void Update(object sender, DebuggerEventArgs e)
 		{
+			if (this.TreeListView is DebuggerTreeListView) {
+				((DebuggerTreeListView)this.TreeListView).DelayRefresh();
+			}
 			Highlight = (Variable.Value.AsString != SubItems[1].Text);
 			Update();
 		}
 		
 		public void Update()
 		{
-			if (this.SubItems[0].Text != Variable.Name)
+			this.SubItems[0].Text = Variable.Name;
-				this.SubItems[0].Text = Variable.Name;
+			this.SubItems[1].Text = Variable.Value.AsString;
-			if (this.SubItems[1].Text != Variable.Value.AsString)
+			this.SubItems[2].Text = Variable.Value.Type;
-				this.SubItems[1].Text = Variable.Value.AsString;
-			if (this.SubItems[2].Text != Variable.Value.Type)
-				this.SubItems[2].Text = Variable.Value.Type;
 			
-			int imageIndex = DebuggerIcons.GetImageListIndex(variable);
+			this.ImageIndex = DebuggerIcons.GetImageListIndex(variable);
-			if (this.ImageIndex != imageIndex) {
-				this.ImageIndex = imageIndex;
-			}
 			
 			if (IsExpanded) {
 				variable.SubVariables.Update();