- added conext menu

- added option to remove waves
- fixed painting errors

com.minres.scviewer.database.swt/src/com/minres/scviewer/database/swt/TxDisplay.java

@@ -10,6 +10,7 @@
  *******************************************************************************/
 package com.minres.scviewer.database.swt;
 
+import java.awt.PageAttributes.OriginType;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.util.HashMap;
@@ -29,6 +30,15 @@ import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.CLabel;
 import org.eclipse.swt.custom.SashForm;
 import org.eclipse.swt.custom.ScrolledComposite;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DragSource;
+import org.eclipse.swt.dnd.DragSourceEvent;
+import org.eclipse.swt.dnd.DragSourceListener;
+import org.eclipse.swt.dnd.DropTarget;
+import org.eclipse.swt.dnd.DropTargetEvent;
+import org.eclipse.swt.dnd.DropTargetListener;
+import org.eclipse.swt.dnd.TextTransfer;
+import org.eclipse.swt.dnd.Transfer;
 import org.eclipse.swt.events.ControlAdapter;
 import org.eclipse.swt.events.ControlEvent;
 import org.eclipse.swt.events.MouseEvent;
@@ -50,6 +60,7 @@ import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.ScrollBar;
+import org.eclipse.swt.widgets.Text;
 import org.eclipse.wb.swt.SWTResourceManager;
 
 import swing2swt.layout.BorderLayout;
@@ -69,14 +80,14 @@ import com.minres.scviewer.database.swt.internal.StreamPainter;
 import com.minres.scviewer.database.swt.internal.TrackPainter;
 import com.minres.scviewer.database.swt.internal.WaveformCanvas;
 
-public class TxDisplay implements PropertyChangeListener, ISelectionProvider, MouseListener{
+public class TxDisplay implements PropertyChangeListener, ISelectionProvider, MouseListener {
 	private ListenerList listeners = new ListenerList();
 
-	private static final String SELECTION="selection";
+	private static final String SELECTION = "selection";
-    private ITx currentSelection;
+	private ITx currentSelection;
-    private IWaveform<? extends IWaveformEvent> currentWaveformSelection;
+	private IWaveform<? extends IWaveformEvent> currentWaveformSelection;
 
-    private ScrolledComposite nameListScrolled;
+	private ScrolledComposite nameListScrolled;
 	private ScrolledComposite valueListScrolled;
 
 	private Canvas nameList;
@@ -84,7 +95,7 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 	WaveformCanvas trackList;
 
 	private Composite top;
-	
+
 	protected ObservableList<IWaveform<? extends IWaveformEvent>> streams;
 	Vector<CursorPainter> cursorPainters;
 
@@ -92,51 +103,56 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 	private Ruler ruler;
 	TreeMap<Integer, IWaveform<? extends IWaveformEvent>> trackVerticalOffset;
 	HashMap<IWaveform<? extends IWaveformEvent>, String> actualValues;
-//	private long maxTime=0; 
+	// private long maxTime=0;
 	private Font nameFont, nameFontB;
-	
-    public TxDisplay(Composite parent) {
-    	trackVerticalOffset = new TreeMap<Integer, IWaveform<? extends IWaveformEvent>>();
-    	actualValues= new HashMap<IWaveform<? extends IWaveformEvent>, String>();
-    	cursorPainters=new Vector<CursorPainter>();
 
-    	nameFont = parent.getDisplay().getSystemFont();
+	public TxDisplay(Composite parent) {
-    	nameFontB = SWTResourceManager.getBoldFont(nameFont);
+		trackVerticalOffset = new TreeMap<Integer, IWaveform<? extends IWaveformEvent>>();
-    	
+		actualValues = new HashMap<IWaveform<? extends IWaveformEvent>, String>();
-    	streams=new ObservableList<IWaveform<? extends IWaveformEvent>>();
+		cursorPainters = new Vector<CursorPainter>();
-    	streams.addPropertyChangeListener(this);
+
-    	
+		nameFont = parent.getDisplay().getSystemFont();
+		nameFontB = SWTResourceManager.getBoldFont(nameFont);
+
+		streams = new ObservableList<IWaveform<? extends IWaveformEvent>>();
+		streams.addPropertyChangeListener(this);
+
 		top = new Composite(parent, SWT.NONE);
 		top.setLayout(new FillLayout(SWT.HORIZONTAL));
-		
+
 		SashForm topSash = new SashForm(top, SWT.SMOOTH);
-		topSash.setBackground(topSash.getDisplay().getSystemColor( SWT.COLOR_GRAY));
+		topSash.setBackground(topSash.getDisplay().getSystemColor(
-		
+				SWT.COLOR_GRAY));
+
 		Composite composite = new Composite(topSash, SWT.NONE);
 		composite.setLayout(new FillLayout(SWT.HORIZONTAL));
-		
+
 		SashForm leftSash = new SashForm(composite, SWT.SMOOTH);
-		leftSash.setBackground(leftSash.getDisplay().getSystemColor( SWT.COLOR_GRAY));
+		leftSash.setBackground(leftSash.getDisplay().getSystemColor(
+				SWT.COLOR_GRAY));
 
 		Composite namePane = createTextPane(leftSash, "Name");
-		namePane.setBackground(namePane.getDisplay().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND));
+		namePane.setBackground(namePane.getDisplay().getSystemColor(
-	
+				SWT.COLOR_WIDGET_BACKGROUND));
-		nameListScrolled = new ScrolledComposite(namePane, SWT.H_SCROLL | SWT.V_SCROLL);
+
-		nameListScrolled.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
+		nameListScrolled = new ScrolledComposite(namePane, SWT.H_SCROLL
+				| SWT.V_SCROLL);
+		nameListScrolled.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true,
+				true, 1, 1));
 		nameListScrolled.setExpandHorizontal(true);
 		nameListScrolled.setExpandVertical(true);
 		nameListScrolled.setAlwaysShowScrollBars(true);
-		nameListScrolled.addControlListener(new ControlAdapter(){
+		nameListScrolled.addControlListener(new ControlAdapter() {
 			@Override
 			public void controlResized(ControlEvent e) {
 				nameListScrolled.getVerticalBar().setVisible(false);
-				
+
 			}
 		});
-		nameList = new Canvas(nameListScrolled, SWT.NONE){
+		nameList = new Canvas(nameListScrolled, SWT.NONE) {
 			@Override
 			public Point computeSize(int wHint, int hHint, boolean changed) {
-				Rectangle bounds= super.getClientArea();
+				Rectangle bounds = super.getClientArea();
 				return new Point(bounds.width, bounds.height);
 			}
 		};
@@ -144,31 +160,34 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 			@Override
 			public void handleEvent(Event event) {
 				GC gc = event.gc;
-	            Rectangle rect = ((Canvas)event.widget).getClientArea();
+				Rectangle rect = ((Canvas) event.widget).getClientArea();
-	            paintNames(gc, rect);				
+				paintNames(gc, rect);
 			}
 		});
 		nameList.addMouseListener(this);
 		nameListScrolled.setContent(nameList);
 
 		Composite valuePane = createTextPane(leftSash, "Value");
-		valuePane.setBackground(valuePane.getDisplay().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND));
+		valuePane.setBackground(valuePane.getDisplay().getSystemColor(
-		valueListScrolled = new ScrolledComposite(valuePane, SWT.H_SCROLL | SWT.V_SCROLL);
+				SWT.COLOR_WIDGET_BACKGROUND));
-		valueListScrolled.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
+		valueListScrolled = new ScrolledComposite(valuePane, SWT.H_SCROLL
+				| SWT.V_SCROLL);
+		valueListScrolled.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true,
+				true, 1, 1));
 		valueListScrolled.setExpandHorizontal(true);
 		valueListScrolled.setExpandVertical(true);
 		valueListScrolled.setAlwaysShowScrollBars(true);
-		valueListScrolled.addControlListener(new ControlAdapter(){
+		valueListScrolled.addControlListener(new ControlAdapter() {
 			@Override
 			public void controlResized(ControlEvent e) {
 				valueListScrolled.getVerticalBar().setVisible(false);
-				
+
 			}
 		});
-		valueList = new Canvas(valueListScrolled, SWT.NONE){
+		valueList = new Canvas(valueListScrolled, SWT.NONE) {
 			@Override
 			public Point computeSize(int wHint, int hHint, boolean changed) {
-				Rectangle bounds= super.getClientArea();
+				Rectangle bounds = super.getClientArea();
 				return new Point(bounds.width, bounds.height);
 			}
 		};
@@ -176,13 +195,13 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 			@Override
 			public void handleEvent(Event event) {
 				GC gc = event.gc;
-	            Rectangle rect = ((Canvas)event.widget).getClientArea();
+				Rectangle rect = ((Canvas) event.widget).getClientArea();
-	            paintValues(gc, rect);				
+				paintValues(gc, rect);
 			}
 		});
 		valueList.addMouseListener(this);
 		valueListScrolled.setContent(valueList);
-		
+
 		trackPane = new Composite(topSash, SWT.NONE);
 		trackPane.setLayout(new BorderLayout(0, 0));
 		ruler = new Ruler(trackPane, SWT.NONE);
@@ -193,39 +212,47 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 		trackList.setStreams(streams);
 		trackList.setRuler(ruler);
 		trackList.addPainter(new TrackPainter(trackList));
-		CursorPainter cp = new CursorPainter(trackList, trackList.getScaleFactor()*10);
+		CursorPainter cp = new CursorPainter(trackList,
+				trackList.getScaleFactor() * 10);
 		trackList.addPainter(cp);
 		cursorPainters.add(cp);
 		trackList.setMaxTime(1);
 		trackList.addMouseListener(this);
-		
+
-		nameListScrolled.getVerticalBar().addSelectionListener(new SelectionAdapter() {
+		nameListScrolled.getVerticalBar().addSelectionListener(
- 			public void widgetSelected(SelectionEvent e) {
+				new SelectionAdapter() {
-				int y = ((ScrollBar) e.widget).getSelection();
+					public void widgetSelected(SelectionEvent e) {
-				valueListScrolled.setOrigin(valueListScrolled.getOrigin().x, y);
+						int y = ((ScrollBar) e.widget).getSelection();
-				trackList.scrollToY(y);
+						valueListScrolled.setOrigin(
-			}
+								valueListScrolled.getOrigin().x, y);
-        });
+						trackList.scrollToY(y);
-        valueListScrolled.getVerticalBar().addSelectionListener(new SelectionAdapter() {
+					}
+				});
+		valueListScrolled.getVerticalBar().addSelectionListener(
+				new SelectionAdapter() {
+					public void widgetSelected(SelectionEvent e) {
+						int y = ((ScrollBar) e.widget).getSelection();
+						nameListScrolled.setOrigin(
+								nameListScrolled.getOrigin().x, y);
+						trackList.scrollToY(y);
+					}
+				});
+		trackList.getVerticalBar().addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
-				int y = ((ScrollBar) e.widget).getSelection();
-				nameListScrolled.setOrigin(nameListScrolled.getOrigin().x, y);
-				trackList.scrollToY(y);
-			}
-        });
-        trackList.getVerticalBar().addSelectionListener(new SelectionAdapter() {
-        	public void widgetSelected(SelectionEvent e) {
 				int y = trackList.getVerticalBar().getSelection();
 				nameListScrolled.setOrigin(nameListScrolled.getOrigin().x, y);
 				valueListScrolled.setOrigin(valueListScrolled.getOrigin().x, y);
-        	}
+			}
 		});
-		topSash.setWeights(new int[] {30, 70});
+		topSash.setWeights(new int[] { 30, 70 });
-		leftSash.setWeights(new int[] {75, 25});
+		leftSash.setWeights(new int[] { 75, 25 });
+
+		createDragSource(nameList);
+		createDragSource(valueList);
+		createDropTarget(nameList);
+		createDropTarget(valueList);
 	}
 
-
-
 	private Composite createTextPane(SashForm leftSash, String text) {
 		Composite namePane = new Composite(leftSash, SWT.NONE);
 		GridLayout gl_namePane = new GridLayout(1, false);
@@ -234,17 +261,19 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 		gl_namePane.horizontalSpacing = 0;
 		gl_namePane.marginHeight = 0;
 		namePane.setLayout(gl_namePane);
-		
+
 		CLabel nameLabel = new CLabel(namePane, SWT.NONE);
-		GridData gd_nameLabel = new GridData(SWT.CENTER, SWT.CENTER, true, false, 1, 1);
+		GridData gd_nameLabel = new GridData(SWT.CENTER, SWT.CENTER, true,
-		gd_nameLabel.heightHint = Ruler.height-2;
+				false, 1, 1);
+		gd_nameLabel.heightHint = Ruler.height - 2;
 		nameLabel.setLayoutData(gd_nameLabel);
 		nameLabel.setText(text);
-		
+
 		Label nameSep = new Label(namePane, SWT.SEPARATOR | SWT.HORIZONTAL);
 		nameSep.setBackground(SWTResourceManager.getColor(SWT.COLOR_DARK_GRAY));
 		nameSep.setForeground(SWTResourceManager.getColor(SWT.COLOR_BLACK));
-		GridData gd_nameSep = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1);
+		GridData gd_nameSep = new GridData(SWT.FILL, SWT.CENTER, true, false,
+				1, 1);
 		gd_nameSep.heightHint = 2;
 		nameSep.setLayoutData(gd_nameSep);
 		return namePane;
@@ -252,76 +281,86 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 
 	@Override
 	public void propertyChange(PropertyChangeEvent pce) {
-		if("size".equals(pce.getPropertyName())) {
+		if ("size".equals(pce.getPropertyName())) {
 			updateTracklist();
 		}
 	}
 
 	@SuppressWarnings("unchecked")
 	protected void updateTracklist() {
-		int yoffs=0;
+		int yoffs = 0;
-		int nameMaxWidth=0;
+		int nameMaxWidth = 0;
-		
+		int previousHeight=trackVerticalOffset.size()==0?0: trackVerticalOffset.lastKey();
-		IWaveformPainter painter=null;
+		IWaveformPainter painter = null;
 		trackVerticalOffset.clear();
 		actualValues.clear();
 		trackList.clearAllWavefromPainter();
-		boolean even=true;
+		boolean even = true;
 		TextLayout tl = new TextLayout(trackList.getDisplay());
 		tl.setFont(nameFontB);
-		for(IWaveform<? extends IWaveformEvent> waveform:streams){
+		for (IWaveform<? extends IWaveformEvent> waveform : streams) {
-			int height=trackList.getTrackHeight();
+			int height = trackList.getTrackHeight();
-			if(waveform instanceof ITxStream<?>){
+			if (waveform instanceof ITxStream<?>) {
-				height*=((ITxStream<? extends ITxEvent>)waveform).getMaxConcurrency();
+				height *= ((ITxStream<? extends ITxEvent>) waveform).getMaxConcurrency();
-				painter= new StreamPainter(trackList, even, height, (ITxStream<? extends ITxEvent>) waveform);
+				painter = new StreamPainter(trackList, even, height, (ITxStream<? extends ITxEvent>) waveform);
 				actualValues.put(waveform, "");
-			} else if(waveform instanceof ISignal<?>){
+			} else if (waveform instanceof ISignal<?>) {
-				painter= new SignalPainter(trackList, even, height, (ISignal<?>) waveform);
+				painter = new SignalPainter(trackList, even, height,
+						(ISignal<?>) waveform);
 				actualValues.put(waveform, "---");
 			}
 			trackList.addWavefromPainter(yoffs, painter);
 			trackVerticalOffset.put(yoffs, waveform);
 			tl.setText(waveform.getFullName());
-			nameMaxWidth=Math.max(nameMaxWidth, tl.getBounds().width);
+			nameMaxWidth = Math.max(nameMaxWidth, tl.getBounds().width);
-			yoffs+=height;
+			yoffs += height;
-			even=!even;
+			even = !even;
 		}
-		nameList.setSize(nameMaxWidth+15, yoffs);
+		nameList.setSize(nameMaxWidth + 15, yoffs);
-		nameListScrolled.setMinSize(nameMaxWidth+15, yoffs);
+		nameListScrolled.setMinSize(nameMaxWidth + 15, yoffs);
 		valueList.setSize(calculateValueWidth(), yoffs);
 		valueListScrolled.setMinSize(calculateValueWidth(), yoffs);
 		nameList.redraw();
 		valueList.redraw();
 		trackList.redraw();
-		top.layout(new Control[]{valueList, nameList, trackList});
+		top.layout(new Control[] { valueList, nameList, trackList });
+		if(previousHeight>trackVerticalOffset.lastKey()){
+			trackList.scrollToY(trackList.getOrigin().y-(previousHeight-trackVerticalOffset.lastKey()));
+		}
+		setSelection(new StructuredSelection());
 	}
-	
+
 	private int calculateValueWidth() {
 		TextLayout tl = new TextLayout(trackList.getDisplay());
 		tl.setFont(nameFontB);
-		int valueMaxWidth=0;
+		int valueMaxWidth = 0;
-		for(String v:actualValues.values()){
+		for (String v : actualValues.values()) {
 			tl.setText(v);
-			valueMaxWidth=Math.max(valueMaxWidth, tl.getBounds().width);
+			valueMaxWidth = Math.max(valueMaxWidth, tl.getBounds().width);
 		}
-		return valueMaxWidth+15;
+		return valueMaxWidth + 15;
 	}
 
 	@Override
 	public void addSelectionChangedListener(ISelectionChangedListener listener) {
-		listeners.add(listener);		
+		listeners.add(listener);
 	}
 
 	@Override
-	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
+	public void removeSelectionChangedListener(
-		listeners.remove(listener);  
+			ISelectionChangedListener listener) {
+		listeners.remove(listener);
 	}
 
+	public Control getControl(){
+		return top;
+	}
+	
 	@Override
 	public ISelection getSelection() {
-		if(currentSelection!=null)
+		if (currentSelection != null)
 			return new StructuredSelection(currentSelection);
-		else if(currentWaveformSelection!=null)
+		else if (currentWaveformSelection != null)
 			return new StructuredSelection(currentWaveformSelection);
 		else
 			return null;
@@ -330,67 +369,72 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 	@SuppressWarnings("unchecked")
 	@Override
 	public void setSelection(ISelection selection) {
-		boolean selectionChanged=false;
+		boolean selectionChanged = false;
-		if(selection instanceof IStructuredSelection){
+		if (selection instanceof IStructuredSelection) {
-			Object sel =((IStructuredSelection)selection).getFirstElement();
+			Object sel = ((IStructuredSelection) selection).getFirstElement();
-			if(sel instanceof ITx && currentSelection!=sel){
+			if (sel instanceof ITx && currentSelection != sel) {
-				currentSelection=(ITx) sel;
+				currentSelection = (ITx) sel;
 				currentWaveformSelection = currentSelection.getStream();
-				selectionChanged=true;
+				selectionChanged = true;
-			} else if(sel instanceof IWaveform<?> && currentWaveformSelection!=sel){
+			} else if (sel instanceof IWaveform<?>
-				currentSelection=null;
+					&& currentWaveformSelection != sel) {
+				currentSelection = null;
 				currentWaveformSelection = (IWaveform<? extends IWaveformEvent>) sel;
-				selectionChanged=true;
+				selectionChanged = true;
 			}
 		} else {
-			if(currentSelection!=null || currentWaveformSelection!=null) selectionChanged=true;
+			if (currentSelection != null || currentWaveformSelection != null)
-			currentSelection=null;
+				selectionChanged = true;
-			currentWaveformSelection = null;			
+			currentSelection = null;
+			currentWaveformSelection = null;
 		}
-		if(selectionChanged){
+		if(currentWaveformSelection!=null && !streams.contains(currentWaveformSelection)){
+			streams.add(currentWaveformSelection);
+		}
+		if (selectionChanged) {
 			trackList.setSelected(currentSelection, currentWaveformSelection);
 			nameList.setData(SELECTION, currentWaveformSelection);
 			valueList.redraw();
 			nameList.redraw();
-			Object[] list = listeners.getListeners();  
+			Object[] list = listeners.getListeners();
-			for (int i = 0; i < list.length; i++) {  
+			for (int i = 0; i < list.length; i++) {
-				((ISelectionChangedListener) list[i]).selectionChanged(new SelectionChangedEvent(this, selection));  
+				((ISelectionChangedListener) list[i]).selectionChanged(new SelectionChangedEvent(this, selection));
 			}
 		}
 	}
 
 	@SuppressWarnings("unchecked")
 	public void moveSelection(GotoDirection direction) {
-		if(currentWaveformSelection instanceof ITxStream<?>){
+		if (currentWaveformSelection instanceof ITxStream<?>) {
 			ITxStream<ITxEvent> stream = (ITxStream<ITxEvent>) currentWaveformSelection;
-			ITx transaction=null;
+			ITx transaction = null;
-			if(direction==GotoDirection.NEXT){
+			if (direction == GotoDirection.NEXT) {
 				Entry<Long, List<ITxEvent>> entry = stream.getEvents().higherEntry(currentSelection.getBeginTime());
-				if(entry!=null)
+				if (entry != null)
 					do {
-						for(ITxEvent evt:entry.getValue()){
+						for (ITxEvent evt : entry.getValue()) {
-							if(evt.getType()==ITxEvent.Type.BEGIN){
+							if (evt.getType() == ITxEvent.Type.BEGIN) {
-								transaction=evt.getTransaction();
+								transaction = evt.getTransaction();
 								break;
 							}
 						}
-						if(transaction==null)
+						if (transaction == null)
-							entry=stream.getEvents().higherEntry(entry.getKey());
+							entry = stream.getEvents().higherEntry(entry.getKey());
-					}while(entry!=null && transaction==null);					
+					} while (entry != null && transaction == null);
-			}else if(direction==GotoDirection.PREV){
+			} else if (direction == GotoDirection.PREV) {
 				Entry<Long, List<ITxEvent>> entry = stream.getEvents().lowerEntry(currentSelection.getBeginTime());
-				if(entry!=null)
+				if (entry != null)
 					do {
-						for(ITxEvent evt:entry.getValue()){
+						for (ITxEvent evt : entry.getValue()) {
-							if(evt.getType()==ITxEvent.Type.BEGIN)
+							if (evt.getType() == ITxEvent.Type.BEGIN)
-								transaction=evt.getTransaction();
+								transaction = evt.getTransaction();
 							break;
 						}
-						if(transaction==null)
+						if (transaction == null)
-							entry=stream.getEvents().lowerEntry(entry.getKey());
+							entry = stream.getEvents().lowerEntry(entry.getKey());
-					}while(entry!=null && transaction==null);					
+					} while (entry != null && transaction == null);
 			}
-			if(transaction!=null){
+			if (transaction != null) {
 				setSelection(new StructuredSelection(transaction));
 			}
 		}
@@ -402,88 +446,124 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 
 	@Override
 	public void mouseDown(MouseEvent e) {
-		if(e.widget==trackList){
+		if(e.button==1 || e.button==3){
-			Object o = trackList.getClicked(new Point(e.x, e.y));
+			if (e.widget == trackList) {
-			if(o !=null)
+				Object o = trackList.getClicked(new Point(e.x, e.y));
-				setSelection(new StructuredSelection(o));
+				if (o != null)
-		}else if(e.widget==valueList || e.widget==nameList){
+					setSelection(new StructuredSelection(o));
-			Entry<Integer, IWaveform<? extends IWaveformEvent>> entry = trackVerticalOffset.floorEntry(e.y);
+			} else if (e.widget == valueList || e.widget == nameList) {
-			if(entry!=null)
+				Entry<Integer, IWaveform<? extends IWaveformEvent>> entry = trackVerticalOffset
-				setSelection(new StructuredSelection(entry.getValue()));
+						.floorEntry(e.y);
+				if (entry != null)
+					setSelection(new StructuredSelection(entry.getValue()));
+			}
+		} 
+		if(e.button==3){
+			top.getMenu().setVisible(true);
 		}
 	}
 
 	@Override
-	public void mouseUp(MouseEvent e) {		
+	public void mouseUp(MouseEvent e) {
 	}
-	
+
-	public List<IWaveform<? extends IWaveformEvent>> getStreamList(){
+	public List<IWaveform<? extends IWaveformEvent>> getStreamList() {
 		return streams;
 	}
 
 	protected void paintNames(GC gc, Rectangle rect) {
-		if(streams.size()>0){
+		if (streams.size() > 0) {
 			@SuppressWarnings("unchecked")
-			IWaveform<? extends IWaveformEvent> wave = (IWaveform<? extends IWaveformEvent>) nameList.getData(SELECTION);
+			IWaveform<? extends IWaveformEvent> wave = (IWaveform<? extends IWaveformEvent>) nameList
-			Integer firstKey=trackVerticalOffset.floorKey(rect.y);
+					.getData(SELECTION);
-			if(firstKey==null) firstKey=trackVerticalOffset.firstKey();
+			Integer firstKey = trackVerticalOffset.floorKey(rect.y);
-			Integer lastKey = trackVerticalOffset.floorKey(rect.y+rect.height);
+			if (firstKey == null)
-			Rectangle subArea = new Rectangle(rect.x, 0, rect.width, trackList.getTrackHeight());
+				firstKey = trackVerticalOffset.firstKey();
-			if(lastKey==firstKey){
+			Integer lastKey = trackVerticalOffset
-				IWaveform<? extends IWaveformEvent> w = trackVerticalOffset.get(firstKey);
+					.floorKey(rect.y + rect.height);
-				if(w instanceof ITxStream<?>)
+			Rectangle subArea = new Rectangle(rect.x, 0, rect.width,
-					subArea.height*=((ITxStream<?>)w).getMaxConcurrency();
+					trackList.getTrackHeight());
-				drawTextFormat(gc, subArea, firstKey, w.getFullName(), wave!=null && w.getId()==wave.getId());
+			if (lastKey == firstKey) {
-			}else{
+				IWaveform<? extends IWaveformEvent> w = trackVerticalOffset
-				for(Entry<Integer, IWaveform<? extends IWaveformEvent>> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()){
+						.get(firstKey);
+				if (w instanceof ITxStream<?>)
+					subArea.height *= ((ITxStream<?>) w).getMaxConcurrency();
+				drawTextFormat(gc, subArea, firstKey, w.getFullName(),
+						wave != null && w.getId() == wave.getId());
+			} else {
+				for (Entry<Integer, IWaveform<? extends IWaveformEvent>> entry : trackVerticalOffset
+						.subMap(firstKey, true, lastKey, true).entrySet()) {
 					IWaveform<? extends IWaveformEvent> w = entry.getValue();
-					subArea.height=trackList.getTrackHeight();
+					subArea.height = trackList.getTrackHeight();
-					if(w instanceof ITxStream<?>)
+					if (w instanceof ITxStream<?>)
-						subArea.height*=((ITxStream<?>)w).getMaxConcurrency();
+						subArea.height *= ((ITxStream<?>) w)
-					drawTextFormat(gc, subArea, entry.getKey(), w.getFullName(), wave!=null && w.getId()==wave.getId());
+								.getMaxConcurrency();
+					drawTextFormat(gc, subArea, entry.getKey(),
+							w.getFullName(),
+							wave != null && w.getId() == wave.getId());
 				}
 			}
-		}		
+		}
 	}
 
 	@SuppressWarnings("unchecked")
 	protected void paintValues(GC gc, Rectangle rect) {
-		if(streams.size()>0){
+		if (streams.size() > 0) {
-			IWaveform<? extends IWaveformEvent> wave = (IWaveform<? extends IWaveformEvent>) nameList.getData(SELECTION);
+			IWaveform<? extends IWaveformEvent> wave = (IWaveform<? extends IWaveformEvent>) nameList
-			Integer firstKey=trackVerticalOffset.floorKey(rect.y);
+					.getData(SELECTION);
-			if(firstKey==null) firstKey=trackVerticalOffset.firstKey();
+			Integer firstKey = trackVerticalOffset.floorKey(rect.y);
-			Integer lastKey = trackVerticalOffset.floorKey(rect.y+rect.height);
+			if (firstKey == null)
-			Rectangle subArea = new Rectangle(rect.x, 0, rect.width, trackList.getTrackHeight());
+				firstKey = trackVerticalOffset.firstKey();
-			if(lastKey==firstKey){
+			Integer lastKey = trackVerticalOffset
-				IWaveform<? extends IWaveformEvent> w = trackVerticalOffset.get(firstKey);
+					.floorKey(rect.y + rect.height);
-				if(w instanceof ITxStream<?>)
+			Rectangle subArea = new Rectangle(rect.x, 0, rect.width,
-					subArea.height*=((ITxStream<?>)w).getMaxConcurrency();
+					trackList.getTrackHeight());
-				drawTextFormat(gc, subArea, firstKey, actualValues.get(w), wave!=null && w.getId()==wave.getId());
+			if (lastKey == firstKey) {
-			}else{
+				IWaveform<? extends IWaveformEvent> w = trackVerticalOffset
-				for(Entry<Integer, IWaveform<? extends IWaveformEvent>> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()){
+						.get(firstKey);
-					IWaveform<? extends IWaveformEvent> w =  entry.getValue();
+				if (w instanceof ITxStream<?>)
-					subArea.height=trackList.getTrackHeight();
+					subArea.height *= ((ITxStream<?>) w).getMaxConcurrency();
-					if(w instanceof ITxStream<?>)
+				drawTextFormat(gc, subArea, firstKey, actualValues.get(w),
-						subArea.height*=((ITxStream<?>)w).getMaxConcurrency();
+						wave != null && w.getId() == wave.getId());
-					drawTextFormat(gc, subArea, entry.getKey(), actualValues.get(w), wave!=null && w.getId()==wave.getId());
+			} else {
+				for (Entry<Integer, IWaveform<? extends IWaveformEvent>> entry : trackVerticalOffset
+						.subMap(firstKey, true, lastKey, true).entrySet()) {
+					IWaveform<? extends IWaveformEvent> w = entry.getValue();
+					subArea.height = trackList.getTrackHeight();
+					if (w instanceof ITxStream<?>)
+						subArea.height *= ((ITxStream<?>) w)
+								.getMaxConcurrency();
+					drawTextFormat(gc, subArea, entry.getKey(),
+							actualValues.get(w), wave != null
+									&& w.getId() == wave.getId());
 				}
 			}
-		}		
+		}
 	}
 
-	protected void drawTextFormat(GC gc, Rectangle subArea, int yOffset, String value, boolean highlite) {
+	protected void drawTextFormat(GC gc, Rectangle subArea, int yOffset,
+			String value, boolean highlite) {
 		Point size = gc.textExtent(value);
-		if(highlite){
+		if (highlite) {
-			gc.setBackground(SWTResourceManager.getColor(SWT.COLOR_LIST_SELECTION));
+			gc.setBackground(SWTResourceManager
-			gc.setForeground(SWTResourceManager.getColor(SWT.COLOR_LIST_SELECTION_TEXT));
+					.getColor(SWT.COLOR_LIST_SELECTION));
-			gc.fillRectangle(subArea.x, subArea.y+yOffset, subArea.width, subArea.height);
+			gc.setForeground(SWTResourceManager
+					.getColor(SWT.COLOR_LIST_SELECTION_TEXT));
+			gc.fillRectangle(subArea.x, subArea.y + yOffset, subArea.width,
+					subArea.height);
 			gc.setFont(nameFontB);
-		}else{
+		} else {
-			gc.setBackground(SWTResourceManager.getColor(SWT.COLOR_LIST_BACKGROUND));
+			gc.setBackground(SWTResourceManager
-			gc.setForeground(SWTResourceManager.getColor(SWT.COLOR_LIST_FOREGROUND));
+					.getColor(SWT.COLOR_LIST_BACKGROUND));
+			gc.setForeground(SWTResourceManager
+					.getColor(SWT.COLOR_LIST_FOREGROUND));
 			gc.setFont(nameFont);
 		}
-		gc.drawText(value, subArea.x+5, subArea.y + yOffset+(trackList.getTrackHeight()-size.y)/2, true);
+		gc.drawText(
+				value,
+				subArea.x + 5,
+				subArea.y + yOffset + (trackList.getTrackHeight() - size.y) / 2,
+				true);
 	}
 
 	public long getMaxTime() {
@@ -501,7 +581,66 @@ public class TxDisplay implements PropertyChangeListener, ISelectionProvider, Mo
 	public int getZoomLevel() {
 		return trackList.getZoomLevel();
 	}
-//	public long getScaleFactor(){
+
-//		return trackList.getScaleFactor();
+	private void createDragSource(final Canvas sourceText) {
-//	}
+		Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
+		DragSource dragSource = new DragSource(sourceText, DND.DROP_MOVE);
+		dragSource.setTransfer(types);
+		dragSource.addDragListener(new DragSourceListener() {
+
+			public void dragStart(DragSourceEvent event) {
+				if (event.y < trackVerticalOffset.lastKey()	+ trackList.getTrackHeight()) {
+//					event.data = trackVerticalOffset.floorEntry(event.y).getValue().getFullName();
+					event.doit = true;
+//					System.out.println("dragStart at location "+new Point(event.x, event.y));
+				}
+			}
+
+			public void dragSetData(DragSourceEvent event) {
+				event.data = trackVerticalOffset.floorEntry(event.y).getValue().getFullName();
+//				System.out.println("dragSetData with data " + event.data);
+			}
+
+			public void dragFinished(DragSourceEvent event) {
+				// do nothing
+			}
+		});
+	}
+
+	private void createDropTarget(final Canvas targetText) {
+		Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
+		DropTarget dropTarget = new DropTarget(targetText, DND.DROP_MOVE);
+		dropTarget.setTransfer(types);
+
+		dropTarget.addDropListener(new DropTargetListener() {
+
+			public void dragEnter(DropTargetEvent event) {
+			}
+
+			public void dragLeave(DropTargetEvent event) {
+			}
+
+			public void dragOperationChanged(DropTargetEvent event) {
+			}
+
+			public void dragOver(DropTargetEvent event) {
+			}
+
+			public void drop(DropTargetEvent event) {
+				Object data = event.data;
+				DropTarget tgt = (DropTarget) event.widget;
+				Point dropPoint = ((Canvas)tgt.getControl()).toControl(event.x, event.y);
+				String fullname1 = trackVerticalOffset.floorEntry(dropPoint.y).getValue().getFullName();
+//				System.out.println("drop with data '" + event.data +"' at location "+dropPoint + " and origin " + nameListScrolled.getOrigin());
+//				System.out.println("drop on " + fullname1);
+			}
+
+			public void dropAccept(DropTargetEvent event) {
+				if (event.detail != DND.DROP_MOVE || event.y > trackVerticalOffset.lastKey() + trackList.getTrackHeight()) {
+					event.detail = DND.DROP_NONE;
+				}
+			}
+		});
+	}
+
 }

com.minres.scviewer.database.swt/src/com/minres/scviewer/database/swt/internal/StreamPainter.java

@@ -102,7 +102,9 @@ public class StreamPainter implements IWaveformPainter{
 				(int)(tx.getBeginTime()/this.waveCanvas.getScaleFactor()), area.y+offset+upper,
 				(int)((tx.getEndTime()-tx.getBeginTime())/this.waveCanvas.getScaleFactor()), txHeight);
 		if(bb.x+bb.width<area.x || bb.x>area.x+area.width) return;
-		if(bb.width<10){
+		if(bb.width==0){
+			gc.drawLine(bb.x, bb.y, bb.x, bb.y+bb.height);
+		} else if(bb.width<10){
 			gc.fillRectangle(bb);
 			gc.drawRectangle(bb);
 		} else {
@@ -129,6 +131,14 @@ public class StreamPainter implements IWaveformPainter{
 		return stream;
 	}
 
+	public ITxStream<? extends ITxEvent> getStream() {
+		return stream;
+	}
+
+	public void setStream(ITxStream<? extends ITxEvent> stream) {
+		this.stream = stream;
+	}
+
 	protected ITx getTxFromEntry(int lane, Entry<Long, List<ITxEvent>> firstTx) {
 		for(ITxEvent evt:firstTx.getValue()){
 			if(evt.getType()==ITxEvent.Type.BEGIN && evt.getTransaction().getConcurrencyIndex()==lane){

com.minres.scviewer.database.swt/src/com/minres/scviewer/database/swt/internal/TrackPainter.java

@@ -12,6 +12,7 @@ package com.minres.scviewer.database.swt.internal;
 
 import java.util.Map.Entry;
 
+import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Rectangle;
 
@@ -30,23 +31,26 @@ public class TrackPainter implements IPainter {
 	}
 
 	public void paintArea(GC gc, Rectangle area) {			
-			if(this.waveCanvas.streams.size()>0){
+		gc.setBackground(this.waveCanvas.colors[WaveformCanvas.Colors.TRACK_BG_EVEN.ordinal()]);
-				Integer firstKey=this.waveCanvas.trackVerticalOffset.floorKey(area.y);
+		gc.setFillRule(SWT.FILL_EVEN_ODD);
-				if(firstKey==null) firstKey=this.waveCanvas.trackVerticalOffset.firstKey();
+		gc.fillRectangle(area);
-				Integer lastKey = this.waveCanvas.trackVerticalOffset.floorKey(area.y+area.height);
+		if(this.waveCanvas.streams.size()>0){
-				Rectangle subArea = new Rectangle(area.x, 0, area.width, 0);
+			Integer firstKey=this.waveCanvas.trackVerticalOffset.floorKey(area.y);
-				if(lastKey==firstKey){
+			if(firstKey==null) firstKey=this.waveCanvas.trackVerticalOffset.firstKey();
-					subArea.y=firstKey;
+			Integer lastKey = this.waveCanvas.trackVerticalOffset.floorKey(area.y+area.height);
-					IWaveformPainter p = this.waveCanvas.trackVerticalOffset.get(firstKey);
+			Rectangle subArea = new Rectangle(area.x, 0, area.width, 0);
-					subArea.height=p.getMinHeight();
+			if(lastKey==firstKey){
-					p.paintArea(gc, subArea);
+				subArea.y=firstKey;
-				}else{
+				IWaveformPainter p = this.waveCanvas.trackVerticalOffset.get(firstKey);
-					for(Entry<Integer, IWaveformPainter> entry : this.waveCanvas.trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()){
+				subArea.height=p.getMinHeight();
-						subArea.y=entry.getKey();
+				p.paintArea(gc, subArea);
-						subArea.height=entry.getValue().getMinHeight();
+			}else{
-						entry.getValue().paintArea(gc, subArea);
+				for(Entry<Integer, IWaveformPainter> entry : this.waveCanvas.trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()){
-					}
+					subArea.y=entry.getKey();
+					subArea.height=entry.getValue().getMinHeight();
+					entry.getValue().paintArea(gc, subArea);
 				}
 			}
+		}
 	}
 }

com.minres.scviewer.database.swt/src/com/minres/scviewer/database/swt/internal/WaveformCanvas.java

@@ -144,7 +144,7 @@ public class WaveformCanvas extends Canvas {
 		this.ruler=ruler;
 	}
 
-	public Object getOrigin() {
+	public Point getOrigin() {
 		return origin;
 	}
 
@@ -350,19 +350,31 @@ public class WaveformCanvas extends Canvas {
 	public void setSelected(ITx currentSelection, IWaveform<? extends IWaveformEvent> currentWaveformSelection) {
 		this.currentSelection=currentSelection;
 		this.currentWaveformSelection=currentWaveformSelection;
-		if(currentSelection!=null) reveal(currentSelection.getBeginTime(), currentSelection.getEndTime());
+		if(currentSelection!=null) reveal(currentSelection);
 		redraw();
 	}
 
-	public void reveal(Long beginTime, Long endTime) {
+	public void reveal(ITx tx){
-		int lower = (int) (beginTime/scaleFactor);
+		int lower = (int) (tx.getBeginTime()/scaleFactor);
-		int higher=(int) (endTime/scaleFactor);
+		int higher=(int) (tx.getEndTime()/scaleFactor);
 		Point size = getSize();
 		if(lower<-origin.x){
 			scrollToX(lower);
 		} else if(higher>(size.x-origin.x)){
 			scrollToX(higher-size.x);
 		}
+		for(Entry<Integer, IWaveformPainter> entry:trackVerticalOffset.entrySet()){
+			if(entry.getValue() instanceof StreamPainter && ((StreamPainter)entry.getValue()).getStream()==tx.getStream()){
+				int top = entry.getKey()+trackHeight*tx.getConcurrencyIndex();
+				int bottom = top+trackHeight*(tx.getConcurrencyIndex()+1);
+				if(top<-origin.y){
+					scrollToY(bottom);
+				} else if(bottom>(size.y-origin.y)){
+					scrollToY(bottom-size.y);
+				}
+		
+			}
+		}
 	}
 
 }

com.minres.scviewer.database.text/.settings/org.eclipse.jdt.core.prefs

@@ -4,4 +4,5 @@ org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
 org.eclipse.jdt.core.compiler.compliance=1.7
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
 org.eclipse.jdt.core.compiler.source=1.7

com.minres.scviewer.ui/plugin.xml

@@ -289,6 +289,70 @@
             </parameter>
          </command>
       </menuContribution>
+      <menuContribution
+            allPopups="false"
+            locationURI="popup:com.minres.scviewer.ui.TxEditorPart">
+         <command
+               commandId="com.minres.scviewer.ui.removeWave"
+               label="Remove"
+               style="push"
+               tooltip="Go to next event">
+            <visibleWhen
+                  checkEnabled="false">
+               <reference
+                     definitionId="com.minres.scviewer.ui.waveEditorActive">
+               </reference>
+            </visibleWhen>
+         </command>
+         <command
+               commandId="com.minres.scviewer.ui.zoomin"
+               label="Zoom in"
+               style="push"
+               tooltip="Zoom into">
+            <visibleWhen
+                  checkEnabled="false">
+               <reference
+                     definitionId="com.minres.scviewer.ui.waveEditorActive">
+               </reference>
+            </visibleWhen>
+         </command>
+         <command
+               commandId="com.minres.scviewer.ui.zoomout"
+               label="Zoom out"
+               style="push"
+               tooltip="Zoom out of">
+            <visibleWhen
+                  checkEnabled="false">
+               <reference
+                     definitionId="com.minres.scviewer.ui.waveEditorActive">
+               </reference>
+            </visibleWhen>
+         </command>
+         <command
+               commandId="com.minres.scviewer.ui.gotoPrev"
+               label="Prev"
+               style="push"
+               tooltip="Go to previous event">
+            <visibleWhen
+                  checkEnabled="false">
+               <reference
+                     definitionId="com.minres.scviewer.ui.waveEditorActive">
+               </reference>
+            </visibleWhen>
+         </command>
+         <command
+               commandId="com.minres.scviewer.ui.gotoNext"
+               label="Next"
+               style="push"
+               tooltip="Go to next event">
+            <visibleWhen
+                  checkEnabled="false">
+               <reference
+                     definitionId="com.minres.scviewer.ui.waveEditorActive">
+               </reference>
+            </visibleWhen>
+         </command>
+      </menuContribution>
    </extension>
    <extension
          point="org.eclipse.ui.commands">
@@ -321,6 +385,10 @@
             id="com.minres.scviewer.ui.zoomout"
             name="Zoom out">
       </command>
+      <command
+            id="com.minres.scviewer.ui.removeWave"
+            name="Remove wave">
+      </command>
    </extension>
    <extension
          point="org.eclipse.ui.handlers">
@@ -329,7 +397,7 @@
             commandId="com.minres.scviewer.ui.gotoPrev">
          <enabledWhen>
             <reference
-                  definitionId="com.minres.scviewer.ui.oneElementSeleted">
+                  definitionId="com.minres.scviewer.ui.oneTxSeleted">
             </reference>
          </enabledWhen>
       </handler>
@@ -338,7 +406,7 @@
             commandId="com.minres.scviewer.ui.gotoNext">
          <enabledWhen>
             <reference
-                  definitionId="com.minres.scviewer.ui.oneElementSeleted">
+                  definitionId="com.minres.scviewer.ui.oneTxSeleted">
             </reference>
          </enabledWhen>
       </handler>
@@ -360,11 +428,35 @@
             </reference>
          </enabledWhen>
       </handler>
+      <handler
+            class="com.minres.scviewer.ui.handler.RemoveHandler"
+            commandId="com.minres.scviewer.ui.removeWave">
+         <enabledWhen>
+            <reference
+                  definitionId="com.minres.scviewer.ui.oneWaveSeleted">
+            </reference>
+         </enabledWhen>
+      </handler>
    </extension>
    <extension
          point="org.eclipse.core.expressions.definitions">
       <definition
-            id="com.minres.scviewer.ui.oneElementSeleted">
+            id="com.minres.scviewer.ui.oneWaveSeleted">
+            <with
+                  variable="selection">
+               <and>
+                  <count
+                        value="1">
+                  </count>
+ 				<iterate
+           operator="or">
+       				<instanceof value="com.minres.scviewer.database.IWaveform"/>
+    			</iterate>      
+            </and>
+            </with>
+      </definition>
+      <definition
+            id="com.minres.scviewer.ui.oneTxSeleted">
             <with
                   variable="selection">
                <and>
@@ -412,6 +504,10 @@
             commandId="com.minres.scviewer.ui.zoomout"
             icon="res/images/zoom_out.png">
       </image>
+      <image
+            commandId="com.minres.scviewer.ui.removeWave"
+            icon="res/images/cross.png">
+      </image>
    </extension>
 
 </plugin>

com.minres.scviewer.ui/src/com/minres/scviewer/ui/TxEditorPart.java

@@ -22,11 +22,13 @@ import java.util.regex.Pattern;
 
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.jface.action.IStatusLineManager;
+import org.eclipse.jface.action.MenuManager;
 import org.eclipse.jface.action.StatusLineContributionItem;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Menu;
 import org.eclipse.ui.IActionBars;
 import org.eclipse.ui.IEditorInput;
 import org.eclipse.ui.IEditorSite;
@@ -110,6 +112,18 @@ public class TxEditorPart extends EditorPart implements ITabbedPropertySheetPage
 			}
 		}).run();
 		zoomStatusLineItem.setText("Zoom level: "+zoomLevel[txDisplay.getZoomLevel()]);
+		
+		MenuManager menuMgr = new MenuManager("#PopupMenu");
+//		menuMgr.setRemoveAllWhenShown(true);
+//		menuMgr.addMenuListener(new IMenuListener() {
+//			public void menuAboutToShow(IMenuManager manager) {
+//				fillContextMenu(manager);
+//			}
+//		});
+		Menu menu = menuMgr.createContextMenu(txDisplay.getControl());
+		txDisplay.getControl().setMenu(menu);
+		getSite().registerContextMenu(menuMgr, txDisplay);
+
 	}
 
 	/*
@@ -332,6 +346,10 @@ public class TxEditorPart extends EditorPart implements ITabbedPropertySheetPage
 		});
 	}
 
+	public ISelection getSelection(){
+		return txDisplay.getSelection();
+	}
+	
 	@Override
 	public String getContributorId() {
 		return getSite().getId();
@@ -353,4 +371,9 @@ public class TxEditorPart extends EditorPart implements ITabbedPropertySheetPage
 		return txDisplay.getZoomLevel();
 	}
 
+	public void removeSelected() {
+		// TODO Auto-generated method stub
+		
+	}
+
 }

com.minres.scviewer.ui/src/com/minres/scviewer/ui/handler/RemoveHandler.java

@@ -0,0 +1,33 @@
+package com.minres.scviewer.ui.handler;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.handlers.HandlerUtil;
+import org.eclipse.ui.internal.misc.StringMatcher;
+
+import com.minres.scviewer.database.IWaveform;
+import com.minres.scviewer.database.IWaveformEvent;
+import com.minres.scviewer.ui.TxEditorPart;
+
+public class RemoveHandler extends AbstractHandler {
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		IEditorPart editor = HandlerUtil.getActiveEditor(event);
+		if(editor instanceof TxEditorPart){
+			TxEditorPart editorPart = (TxEditorPart) editor;
+			ISelection selection =editorPart.getSelection();
+			if(selection instanceof StructuredSelection && ((StructuredSelection)selection).getFirstElement() instanceof IWaveform<?>){
+				editorPart.removeStreamFromList((IWaveform<? extends IWaveformEvent>) ((StructuredSelection)selection).getFirstElement());
+				editorPart.setSelection(new StructuredSelection());
+			}
+		}
+		return null;
+	}
+
+}