diff -r ed1c9f64298a -r 5b9d4d8641ce trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/dialog/treeitem/TreeCheckboxStateListener.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/dialog/treeitem/TreeCheckboxStateListener.java	Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies). 
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:
+ *
+ * Tree Checkbox State Listener class
+ *
+ */
+package com.nokia.traceviewer.dialog.treeitem;
+
+import org.eclipse.jface.viewers.CheckStateChangedEvent;
+import org.eclipse.jface.viewers.CheckboxTreeViewer;
+import org.eclipse.jface.viewers.ICheckStateListener;
+
+import com.nokia.traceviewer.engine.TraceViewerGlobals;
+
+/**
+ * Tree Checkbox State Listener class
+ */
+public class TreeCheckboxStateListener implements ICheckStateListener {
+
+	/**
+	 * CheckboxTreeViewer
+	 */
+	private final CheckboxTreeViewer viewer;
+
+	/**
+	 * Constructor
+	 * 
+	 * @param viewer
+	 *            checkboxviewer
+	 */
+	public TreeCheckboxStateListener(CheckboxTreeViewer viewer) {
+		this.viewer = viewer;
+	}
+
+	public void checkStateChanged(CheckStateChangedEvent event) {
+		// Check and uncheck children
+		if (event.getChecked()) {
+			viewer.setSubtreeChecked(event.getElement(), true);
+		} else {
+			viewer.setSubtreeChecked(event.getElement(), false);
+		}
+		viewer.setGrayed(event.getElement(), false);
+
+		// Set something changed variable to color dialog
+		if (event.getElement() instanceof ColorTreeItem) {
+			TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+					.getColorer().getColorDialog().setSomethingChanged(true);
+
+			// Set something changed variable to filter dialog
+		} else if (event.getElement() instanceof FilterTreeItem) {
+			TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+					.getFilterProcessor().getFilterDialog()
+					.setSomethingChanged(true);
+
+			// Set something changed variable to linecount dialog
+		} else if (event.getElement() instanceof LineCountTreeItem) {
+			TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+					.getLineCountProcessor().getLineCountDialog()
+					.setSomethingChanged(true);
+
+			// Set something changed variable to variableTracing dialog
+		} else if (event.getElement() instanceof VariableTracingTreeItem) {
+			TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+					.getVariableTracingProcessor().getVariableTracingDialog()
+					.setSomethingChanged(true);
+
+			// Set something changed variable to trigger dialog
+		} else if (event.getElement() instanceof TriggerTreeItem) {
+			TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+					.getTriggerProcessor().getTriggerDialog()
+					.setSomethingChanged(true);
+		}
+
+		// Check parents if needed
+		checkStateChanged((TreeItem) event.getElement());
+	}
+
+	/**
+	 * Makes needed changes to viewer if checked state was changed manually
+	 * 
+	 * @param item
+	 *            item which has checked state changed
+	 */
+	public void checkStateChanged(TreeItem item) {
+		TreeItem parent = (TreeItem) item.getParent();
+		// Item checked
+		if (viewer.getChecked(item) && !viewer.getGrayed(item)
+				&& parent != null) {
+
+			// If all children checked, check parent also
+			if (allChildrenChecked(parent)) {
+				viewer.setChecked(parent, true);
+				viewer.setGrayed(parent, false);
+				// Only grey check
+			} else {
+				viewer.setGrayChecked(parent, true);
+			}
+
+			checkStateChanged(parent);
+
+			// Item unchecked
+		} else if (!viewer.getChecked(item) && parent != null) {
+
+			// If any children still checked
+			if (anyChildrenChecked(parent)) {
+				viewer.setGrayChecked(parent, true);
+			} else {
+				viewer.setGrayChecked(parent, false);
+			}
+			checkStateChanged(parent);
+		} else if (viewer.getChecked(item) && viewer.getGrayed(item)
+				&& parent != null) {
+
+			viewer.setGrayChecked(parent, true);
+			checkStateChanged(parent);
+		}
+	}
+
+	/**
+	 * Tells if given item has any children checked
+	 * 
+	 * @param item
+	 *            item to investigate
+	 * @return true if this item has any children checked
+	 */
+	public boolean anyChildrenChecked(TreeItem item) {
+		boolean isAnyChecked = false;
+
+		Object[] children = item.getChildren();
+
+		for (int i = 0; i < children.length; i++) {
+			if (viewer.getChecked(children[i])) {
+				isAnyChecked = true;
+				break;
+			}
+		}
+		return isAnyChecked;
+	}
+
+	/**
+	 * Tells if given item has all children checked
+	 * 
+	 * @param item
+	 *            item to investigate
+	 * @return true if this item has all children checked
+	 */
+	public boolean allChildrenChecked(TreeItem item) {
+		boolean isAllChecked = true;
+
+		Object[] children = item.getChildren();
+
+		for (int i = 0; i < children.length; i++) {
+			if (!viewer.getChecked(children[i])
+					&& !viewer.getGrayed(children[i])) {
+				isAllChecked = false;
+				break;
+			}
+		}
+		return isAllChecked;
+	}
+}