add dynamic update of waveform list

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/SQLiteDbLoader.java

@@ -11,9 +11,11 @@
 package com.minres.scviewer.database.sqlite;
 
 import java.beans.IntrospectionException;
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.IOException;
+import java.io.InputStream;
 import java.lang.reflect.InvocationTargetException;
 import java.sql.SQLException;
 import java.util.ArrayList;
@@ -40,6 +42,11 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 	
 	private ScvSimProps scvSimProps;
 		
+	private static final byte[] x = "SQLite format 3".getBytes();
+
+	/** The pcs. */
+	protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+
 	@Override
 	public Long getMaxTime() {
 		SQLiteDatabaseSelectHandler<ScvTxEvent> handler = new SQLiteDatabaseSelectHandler<>(ScvTxEvent.class,
@@ -71,21 +78,28 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 		return streams;
 	}
 
-	private byte[] x = "SQLite format 3".getBytes();
-
 	@Override
-	public boolean load(IWaveformDb db, File file) throws InputFormatException {
+	public boolean canLoad(File inputFile) {
-		dispose();
+		if (!inputFile.isDirectory() && inputFile.exists()) {
-		if(file.isDirectory() || !file.exists()) return false;
+			try(InputStream stream = new FileInputStream(inputFile)){
-		try(FileInputStream fis = new FileInputStream(file)) {
 				byte[] buffer = new byte[x.length];
-			int read = fis.read(buffer, 0, x.length);
+				int readCnt = stream.read(buffer, 0, x.length);
-			if (read == x.length)
+				if (readCnt == x.length) {
 					for (int i = 0; i < x.length; i++)
-					if (buffer[i] != x[i])	return false;
+						if (buffer[i] != x[i])
-		} catch(IOException e) {
 							return false;
 				}
+				return true;
+			} catch (Exception e) {
+				return false;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public void load(IWaveformDb db, File file) throws InputFormatException {
+		dispose();
 		database=new SQLiteDatabase(file.getAbsolutePath(), db);
 		database.setData("TIMERESOLUTION", 1L);
 		SQLiteDatabaseSelectHandler<ScvSimProps> handler = new SQLiteDatabaseSelectHandler<>(ScvSimProps.class, database);
@@ -94,12 +108,11 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 				scvSimProps=simProps;
 				database.setData("TIMERESOLUTION", scvSimProps.getTime_resolution());
 			}
-			return true;
+			pcs.firePropertyChange(IWaveformDbLoader.LOADING_FINISHED, null, null);
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
 				| InvocationTargetException | SQLException | IntrospectionException e) {
-			e.printStackTrace();
+			throw new InputFormatException();
 		}
-		return false;
 	}
 
 	public void dispose() {
@@ -112,4 +125,24 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 		return usedRelationsList;
 	}
 
+	/**
+	 * Adds the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void addPropertyChangeListener(PropertyChangeListener l) {
+		pcs.addPropertyChangeListener(l);
+	}
+
+	/**
+	 * Removes the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void removePropertyChangeListener(PropertyChangeListener l) {
+		pcs.removePropertyChangeListener(l);
+	}
+
 }

plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/TextDbLoader.java

@@ -11,6 +11,8 @@
  *******************************************************************************/
 package com.minres.scviewer.database.text;
 
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
@@ -89,6 +91,12 @@ public class TextDbLoader implements IWaveformDbLoader {
 	/** The threads. */
 	List<Thread> threads = new ArrayList<>();
 
+	/** The pcs. */
+	protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+
+	/** The Constant x. */
+	static final byte[] x = "scv_tr_stream".getBytes();
+
 	/**
 	 * Gets the max time.
 	 *
@@ -109,8 +117,31 @@ public class TextDbLoader implements IWaveformDbLoader {
 		return new ArrayList<>(txStreams.values());
 	}
 
-	/** The Constant x. */
+	/**
-	static final byte[] x = "scv_tr_stream".getBytes();
+	 * Can load.
+	 *
+	 * @param inputFile the input file
+	 * @return true, if successful
+	 */
+	@Override
+	public boolean canLoad(File inputFile) {
+		if (!inputFile.isDirectory() && inputFile.exists()) {
+			boolean gzipped = isGzipped(inputFile);
+			try(InputStream stream = gzipped ? new GZIPInputStream(new FileInputStream(inputFile)) : new FileInputStream(inputFile)){
+				byte[] buffer = new byte[x.length];
+				int readCnt = stream.read(buffer, 0, x.length);
+				if (readCnt == x.length) {
+					for (int i = 0; i < x.length; i++)
+						if (buffer[i] != x[i])
+							return false;
+				}
+				return true;
+			} catch (Exception e) {
+				return false;
+			}
+		}
+		return false;
+	}
 
 	/**
 	 * Load.
@@ -122,19 +153,9 @@ public class TextDbLoader implements IWaveformDbLoader {
 	 */
 	@SuppressWarnings("unchecked")
 	@Override
-	public boolean load(IWaveformDb db, File file) throws InputFormatException {
+	public void load(IWaveformDb db, File file) throws InputFormatException {
 		dispose();
-		if (file.isDirectory() || !file.exists())
-			return false;
-		TextDbParser parser = new TextDbParser(this);
 		boolean gzipped = isGzipped(file);
-		try {
-			if (!isTxfile(gzipped ? new GZIPInputStream(new FileInputStream(file)) : new FileInputStream(file)))
-				return false;
-		} catch (Exception e) {
-			throw new InputFormatException();
-		}
-
 		if (file.length() < 75000000 * (gzipped ? 1 : 10)
 				|| "memory".equals(System.getProperty("ScvBackingDB", "file")))
 			mapDb = DBMaker.memoryDirectDB().allocateStartSize(512l * 1024l * 1024l)
@@ -145,13 +166,14 @@ public class TextDbLoader implements IWaveformDbLoader {
 				mapDbFile = File.createTempFile("." + file.getName(), ".mapdb", null /* file.parentFile */);
 				Files.delete(Paths.get(mapDbFile.getPath()));
 			} catch (IOException e1) {
-				return false;
+				throw new InputFormatException();
 			}
 			mapDb = DBMaker.fileDB(mapDbFile).fileMmapEnable() // Always enable mmap
 					.fileMmapEnableIfSupported().fileMmapPreclearDisable().allocateStartSize(512l * 1024l * 1024l)
 					.allocateIncrement(128l * 1024l * 1024l).cleanerHackEnable().make();
 			mapDbFile.deleteOnExit();
 		}
+		TextDbParser parser = new TextDbParser(this);
 		try {
 			parser.txSink = mapDb.treeMap("transactions", Serializer.LONG, Serializer.JAVA).createFromSink();
 			parser.parseInput(gzipped ? new GZIPInputStream(new FileInputStream(file)) : new FileInputStream(file));
@@ -160,7 +182,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 		} catch (Exception e) {
 			System.out.println("---->>> Exception " + e.toString() + " caught while loading database");
 			e.printStackTrace();
-			return false;
+			throw new InputFormatException();
 		}
 		for (TxStream stream : txStreams.values()) {
 			Thread t = new Thread() {
@@ -175,7 +197,6 @@ public class TextDbLoader implements IWaveformDbLoader {
 			threads.add(t);
 			t.start();
 		}
-		return true;
 	}
 
 	/**
@@ -197,28 +218,6 @@ public class TextDbLoader implements IWaveformDbLoader {
 		}
 	}
 
-	/**
-	 * Checks if is txfile.
-	 *
-	 * @param istream the istream
-	 * @return true, if is txfile
-	 */
-	private static boolean isTxfile(InputStream istream) {
-		byte[] buffer = new byte[x.length];
-		try {
-			int readCnt = istream.read(buffer, 0, x.length);
-			istream.close();
-			if (readCnt == x.length) {
-				for (int i = 0; i < x.length; i++)
-					if (buffer[i] != x[i])
-						return false;
-			}
-			return true;
-		} catch (IOException e) {
-			return false;
-		}
-	}
-
 	/**
 	 * Checks if is gzipped.
 	 *
@@ -416,7 +415,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 				if (matcher.matches()) {
 					Long id = Long.parseLong(matcher.group(1));
 					TxStream stream = new TxStream(loader, id, matcher.group(2), matcher.group(3));
-					loader.txStreams.put(id, stream);
+					add(id, stream);
 				}
 			} else if ("scv_tr_generator".equals(tokens[0])) {
 				Matcher matcher = scv_tr_generator.matcher(curLine);
@@ -424,7 +423,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 					Long id = Long.parseLong(matcher.group(1));
 					TxStream stream = loader.txStreams.get(Long.parseLong(matcher.group(3)));
 					generator = new TxGenerator(loader, id, matcher.group(2), stream);
-					loader.txGenerators.put(id, generator);
+					add(id, generator);
 				}
 			} else if ("begin_attribute".equals(tokens[0])) {
 				Matcher matcher = begin_attribute.matcher(curLine);
@@ -497,6 +496,16 @@ public class TextDbLoader implements IWaveformDbLoader {
 				return 1000000000000000L;
 			return 1L;
 		}
+		private void add(Long id, TxStream stream) {
+			loader.txStreams.put(id, stream);
+			loader.pcs.firePropertyChange(IWaveformDbLoader.STREAM_ADDED, null, stream);
+		}
+
+		private void add(Long id, TxGenerator generator) {
+			loader.txGenerators.put(id, generator);
+			loader.pcs.firePropertyChange(IWaveformDbLoader.GENERATOR_ADDED, null, generator);
+		}
+
 	}
 
 	/**
@@ -513,4 +522,24 @@ public class TextDbLoader implements IWaveformDbLoader {
 		return tx;
 	}
 
+	/**
+	 * Adds the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void addPropertyChangeListener(PropertyChangeListener l) {
+		pcs.addPropertyChangeListener(l);
+	}
+
+	/**
+	 * Removes the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void removePropertyChangeListener(PropertyChangeListener l) {
+		pcs.removePropertyChangeListener(l);
+	}
+
 }

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/WaveformView.java

@@ -144,7 +144,8 @@ public class WaveformView implements IWaveformView  {
 					entry.getValue().selected = true;
 			} else if (e.button == 3) {
 				Menu topMenu = top.getMenu();
-				if(topMenu!=null) topMenu.setVisible(true);
+				if (topMenu != null)
+					topMenu.setVisible(true);
 			}
 		}
 
@@ -157,10 +158,12 @@ public class WaveformView implements IWaveformView  {
 						if (lastClickedEntry.selected) {
 							int firstIdx = streams.indexOf(lastClickedEntry);
 							int lastIdx = streams.indexOf(entry.getValue());
-							List<TrackEntry> res = firstIdx>lastIdx?streams.subList(lastIdx, firstIdx+1):streams.subList(firstIdx, lastIdx+1);
+							List<TrackEntry> res = firstIdx > lastIdx ? streams.subList(lastIdx, firstIdx + 1)
+									: streams.subList(firstIdx, lastIdx + 1);
 							setSelection(new StructuredSelection(res), (e.stateMask & SWT.CTRL) != 0, false);
 						} else
-							setSelection(new StructuredSelection(entry.getValue()), (e.stateMask & SWT.CTRL) !=0 , false);
+							setSelection(new StructuredSelection(entry.getValue()), (e.stateMask & SWT.CTRL) != 0,
+									false);
 					} else {
 						setSelection(new StructuredSelection(entry.getValue()), (e.stateMask & SWT.CTRL) != 0, false);
 					}
@@ -191,15 +194,18 @@ public class WaveformView implements IWaveformView  {
 
 		private void mouseUp(MouseEvent e) {
 			down = false;
-			if(start==null) return;
+			if (start == null)
-			if((e.stateMask&SWT.MODIFIER_MASK&~SWT.SHIFT)!=0) return; //don't react on modifier except shift
+				return;
+			if ((e.stateMask & SWT.MODIFIER_MASK & ~SWT.SHIFT) != 0)
+				return; // don't react on modifier except shift
 			if (e.button == 1 && Math.abs(e.x - start.x) > 3) {
 				asyncUpdate(e.widget);
 				long startTime = waveformCanvas.getTimeForOffset(start.x);
 				long endTime = waveformCanvas.getTimeForOffset(end.x);
 				long targetTimeRange = endTime - startTime;
 				long currentTimeRange = waveformCanvas.getMaxVisibleTime() - waveformCanvas.getMinVisibleTime();
-				if(targetTimeRange==0) return;
+				if (targetTimeRange == 0)
+					return;
 				long relation = currentTimeRange / targetTimeRange;
 				long i = 1;
 				int level = 0;
@@ -270,7 +276,8 @@ public class WaveformView implements IWaveformView  {
 				} else if (ceilEntry != null && floorEntry == null) {
 					time = ceilEntry.getKey();
 				} else if (ceilEntry != null && floorEntry != null) {
-					time=time-floorEntry.getKey()<ceilEntry.getKey()-time?floorEntry.getKey(): ceilEntry.getKey();
+					time = time - floorEntry.getKey() < ceilEntry.getKey() - time ? floorEntry.getKey()
+							: ceilEntry.getKey();
 				}
 			}
 			return time;
@@ -284,13 +291,15 @@ public class WaveformView implements IWaveformView  {
 			case SWT.MouseDown:
 				start = new Point(e.x, e.y);
 				end = new Point(e.x, e.y);
-				if((e.stateMask&SWT.MODIFIER_MASK)!=0) return; //don't react on modifier
+				if ((e.stateMask & SWT.MODIFIER_MASK) != 0)
+					return; // don't react on modifier
 				if (e.button == 1) {
 					down = true;
 					initialSelected = waveformCanvas.getElementsAt(start);
 				} else if (e.button == 3) {
 					Menu topMenu = top.getMenu();
-					if(topMenu!=null) topMenu.setVisible(true);
+					if (topMenu != null)
+						topMenu.setVisible(true);
 				}
 				break;
 			case SWT.MouseUp:
@@ -309,6 +318,7 @@ public class WaveformView implements IWaveformView  {
 		}
 
 	}
+
 	protected WaveformMouseListener waveformMouseListener = new WaveformMouseListener();
 
 	public WaveformView(Composite parent, IWaveformStyleProvider styleProvider) {
@@ -576,7 +586,8 @@ public class WaveformView implements IWaveformView  {
 						for (IEvent evt : firstTx.getValue()) {
 							if (evt instanceof ITxEvent) {
 								ITx tx = ((ITxEvent) evt).getTransaction();
-								if((evt.getKind()==EventKind.BEGIN || evt.getKind()==EventKind.SINGLE) && tx.getBeginTime()<=time && tx.getEndTime()>=time){
+								if ((evt.getKind() == EventKind.BEGIN || evt.getKind() == EventKind.SINGLE)
+										&& tx.getBeginTime() <= time && tx.getEndTime() >= time) {
 									if (resultsList[tx.getConcurrencyIndex()] == null)
 										resultsList[tx.getConcurrencyIndex()] = ((ITxEvent) evt).getTransaction();
 								}
@@ -587,8 +598,10 @@ public class WaveformView implements IWaveformView  {
 					boolean separator = false;
 					StringBuilder sb = new StringBuilder();
 					for (ITx o : resultsList) {
-						if(separator) sb.append("|");
+						if (separator)
-						if(o!=null) sb.append(o.getGenerator().getName());
+							sb.append("|");
+						if (o != null)
+							sb.append(o.getGenerator().getName());
 						separator = true;
 					}
 					entry.currentValue = sb.toString();
@@ -602,31 +615,41 @@ public class WaveformView implements IWaveformView  {
 		valueListScrolled.redraw();
 	}
 
-
 	private boolean isArrayFull(Object[] array) {
 		for (Object o : array) {
-			if(o==null) return false;
+			if (o == null)
+				return false;
 		}
 		return true;
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#addSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#addSelectionChangedListener(
+	 * org.eclipse.jface.viewers.ISelectionChangedListener)
 	 */
 	@Override
 	public void addSelectionChangedListener(ISelectionChangedListener listener) {
 		selectionChangedListeners.add(listener);
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#removeSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see com.minres.scviewer.database.swt.IWaveformPanel#
+	 * removeSelectionChangedListener(org.eclipse.jface.viewers.
+	 * ISelectionChangedListener)
 	 */
 	@Override
 	public void removeSelectionChangedListener(ISelectionChangedListener listener) {
 		selectionChangedListeners.remove(listener);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getControl()
 	 */
 	@Override
@@ -634,7 +657,9 @@ public class WaveformView implements IWaveformView  {
 		return top;
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getNameControl()
 	 */
 	@Override
@@ -642,7 +667,9 @@ public class WaveformView implements IWaveformView  {
 		return nameList;
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getValueControl()
 	 */
 	@Override
@@ -650,7 +677,9 @@ public class WaveformView implements IWaveformView  {
 		return valueList;
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getWaveformControl()
 	 */
 	@Override
@@ -658,7 +687,9 @@ public class WaveformView implements IWaveformView  {
 		return waveformCanvas;
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getSelection()
 	 */
 	@Override
@@ -671,22 +702,36 @@ public class WaveformView implements IWaveformView  {
 		return new StructuredSelection(sel.toArray());
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setSelection(org.eclipse.jface.viewers.ISelection)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#setSelection(org.eclipse.
+	 * jface.viewers.ISelection)
 	 */
 	@Override
 	public void setSelection(ISelection selection) {
 		setSelection(selection, false, false);
 	}
-	/* (non-Javadoc)
+
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setSelection(org.eclipse.jface.viewers.ISelection, boolean)
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#setSelection(org.eclipse.
+	 * jface.viewers.ISelection, boolean)
 	 */
 	@Override
 	public void setSelection(ISelection selection, boolean showIfNeeded) {
 		setSelection(selection, false, showIfNeeded);
 	}
-	/* (non-Javadoc)
+
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#addToSelection(org.eclipse.jface.viewers.ISelection, boolean)
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#addToSelection(org.eclipse.
+	 * jface.viewers.ISelection, boolean)
 	 */
 	@Override
 	public void addToSelection(ISelection selection, boolean showIfNeeded) {
@@ -703,12 +748,14 @@ public class WaveformView implements IWaveformView  {
 				currentTxSelection = null;
 				currentWaveformSelection.clear();
 			} else {
-				if(!add) currentWaveformSelection.clear();
+				if (!add)
+					currentWaveformSelection.clear();
 				List<?> selList = sel.toList();
 				if (selList.get(0) instanceof ITx) {
 					ITx txSel = (ITx) selList.get(0);
-					TrackEntry trackEntry =  selList.size()==2 && selList.get(1) instanceof TrackEntry?
+					TrackEntry trackEntry = selList.size() == 2 && selList.get(1) instanceof TrackEntry
-							(TrackEntry) selList.get(1):null;
+							? (TrackEntry) selList.get(1)
+							: null;
 					if (trackEntry == null) {
 						trackEntry = getEntryFor(txSel);
 						if (trackEntry == null && addIfNeeded) {
@@ -746,7 +793,8 @@ public class WaveformView implements IWaveformView  {
 	}
 
 	protected void fireSelectionChanged() {
-		if(currentWaveformSelection==null) return;
+		if (currentWaveformSelection == null)
+			return;
 		ISelection selection = getSelection();
 		Object[] list = selectionChangedListeners.getListeners();
 		for (int i = 0; i < list.length; i++) {
@@ -754,8 +802,12 @@ public class WaveformView implements IWaveformView  {
 		}
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#moveSelection(com.minres.scviewer.database.swt.GotoDirection)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#moveSelection(com.minres.
+	 * scviewer.database.swt.GotoDirection)
 	 */
 	@Override
 	public void moveSelection(GotoDirection direction) {
@@ -773,14 +825,20 @@ public class WaveformView implements IWaveformView  {
 		}
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#moveSelection(com.minres.scviewer.database.swt.GotoDirection, com.minres.scviewer.database.RelationType)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#moveSelection(com.minres.
+	 * scviewer.database.swt.GotoDirection,
+	 * com.minres.scviewer.database.RelationType)
 	 */
 	@Override
 	public void moveSelection(GotoDirection direction, RelationType relationType) {
-		if(currentWaveformSelection.size() !=1 && currentTxSelection==null) return;
+		if (currentWaveformSelection.size() != 1 && currentTxSelection == null)
-		TrackEntry selectedWaveform=currentWaveformSelection.size() == 1?
+			return;
-				currentWaveformSelection.get(0) : getEntryFor(currentTxSelection);
+		TrackEntry selectedWaveform = currentWaveformSelection.size() == 1 ? currentWaveformSelection.get(0)
+				: getEntryFor(currentTxSelection);
 		if (selectedWaveform.waveform.getType() == WaveformType.TRANSACTION && currentTxSelection != null) {
 			if (relationType.equals(IWaveformView.NEXT_PREV_IN_STREAM)) {
 				ITx transaction = null;
@@ -788,7 +846,8 @@ public class WaveformView implements IWaveformView  {
 					IEvent[] eventsList = selectedWaveform.waveform.getEvents().get(currentTxSelection.getBeginTime());
 					boolean meFound = false;
 					for (IEvent evt : eventsList) {
-						if (evt instanceof ITxEvent && evt.getKind() == EventKind.BEGIN || evt.getKind()==EventKind.SINGLE) {
+						if (evt instanceof ITxEvent && evt.getKind() == EventKind.BEGIN
+								|| evt.getKind() == EventKind.SINGLE) {
 							if (meFound) {
 								transaction = ((ITxEvent) evt).getTransaction();
 								break;
@@ -797,10 +856,13 @@ public class WaveformView implements IWaveformView  {
 						}
 					}
 					if (transaction == null) {
-						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents().higherEntry(currentTxSelection.getBeginTime());
+						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents()
-						if (entry != null) do {
+								.higherEntry(currentTxSelection.getBeginTime());
+						if (entry != null)
+							do {
 								for (IEvent evt : entry.getValue()) {
-								if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN || evt.getKind()==EventKind.SINGLE)) {
+									if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN
+											|| evt.getKind() == EventKind.SINGLE)) {
 										transaction = ((ITxEvent) evt).getTransaction();
 										break;
 									}
@@ -813,7 +875,8 @@ public class WaveformView implements IWaveformView  {
 					IEvent[] eventsList = selectedWaveform.waveform.getEvents().get(currentTxSelection.getBeginTime());
 					boolean meFound = false;
 					for (IEvent evt : Lists.reverse(Arrays.asList(eventsList))) {
-						if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN || evt.getKind()==EventKind.SINGLE)) {
+						if (evt instanceof ITxEvent
+								&& (evt.getKind() == EventKind.BEGIN || evt.getKind() == EventKind.SINGLE)) {
 							if (meFound) {
 								transaction = ((ITxEvent) evt).getTransaction();
 								break;
@@ -822,10 +885,13 @@ public class WaveformView implements IWaveformView  {
 						}
 					}
 					if (transaction == null) {
-						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents().lowerEntry(currentTxSelection.getBeginTime());
+						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents()
-						if (entry != null) do {
+								.lowerEntry(currentTxSelection.getBeginTime());
+						if (entry != null)
+							do {
 								for (IEvent evt : Lists.reverse(Arrays.asList(entry.getValue()))) {
-								if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN || evt.getKind()==EventKind.SINGLE)) {
+									if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN
+											|| evt.getKind() == EventKind.SINGLE)) {
 										transaction = ((ITxEvent) evt).getTransaction();
 										break;
 									}
@@ -856,12 +922,16 @@ public class WaveformView implements IWaveformView  {
 	}
 
 	private ITxRelation selectTxToNavigateTo(Collection<ITxRelation> rel, RelationType relationType, boolean target) {
-		ArrayList<ITxRelation> candidates = rel.stream().filter(r -> relationType.equals(r.getRelationType())).collect(Collectors.toCollection(ArrayList::new));
+		ArrayList<ITxRelation> candidates = rel.stream().filter(r -> relationType.equals(r.getRelationType()))
+				.collect(Collectors.toCollection(ArrayList::new));
 		switch (candidates.size()) {
-		case 0: return null;
+		case 0:
-		case 1: return candidates.get(0);
+			return null;
+		case 1:
+			return candidates.get(0);
 		default:
-			ArrayList<ITxRelation> visibleCandidates = candidates.stream().filter(this::streamsVisible).collect(Collectors.toCollection(ArrayList::new));
+			ArrayList<ITxRelation> visibleCandidates = candidates.stream().filter(this::streamsVisible)
+					.collect(Collectors.toCollection(ArrayList::new));
 			if (visibleCandidates.isEmpty()) {
 				return new RelSelectionDialog(waveformCanvas.getShell(), candidates, target).open();
 			} else if (visibleCandidates.size() == 1) {
@@ -878,12 +948,16 @@ public class WaveformView implements IWaveformView  {
 		return streams.stream().anyMatch(x -> x.waveform == src) && streams.stream().anyMatch(x -> x.waveform == tgt);
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#moveCursor(com.minres.scviewer.database.swt.GotoDirection)
+	 * (non-Javadoc)
+	 * 
+	 * @see com.minres.scviewer.database.swt.IWaveformPanel#moveCursor(com.minres.
+	 * scviewer.database.swt.GotoDirection)
 	 */
 	@Override
 	public void moveCursor(GotoDirection direction) {
-		if(currentWaveformSelection.size()!=1) return;
+		if (currentWaveformSelection.size() != 1)
+			return;
 		TrackEntry sel = currentWaveformSelection.get(0);
 		long time = getCursorTime();
 		NavigableMap<Long, ?> map = null;
@@ -903,14 +977,19 @@ public class WaveformView implements IWaveformView  {
 
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getStreamList()
 	 */
 	@Override
 	public List<TrackEntry> getStreamList() {
 		return streams;
 	}
-	/* (non-Javadoc)
+
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#deleteSelectedTracks()
 	 */
 	@Override
@@ -926,7 +1005,10 @@ public class WaveformView implements IWaveformView  {
 		setSelection(new StructuredSelection());
 		update();
 	}
-	/* (non-Javadoc)
+
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#moveSelected(int)
 	 */
 	@Override
@@ -936,7 +1018,8 @@ public class WaveformView implements IWaveformView  {
 			for (Object o : currentWaveformSelection)
 				streams.remove(o);
 			int tgtIdx = idx + i;
-			if(tgtIdx<0) tgtIdx=0;
+			if (tgtIdx < 0)
+				tgtIdx = 0;
 			if (tgtIdx >= streams.size())
 				streams.addAll(currentWaveformSelection);
 			else
@@ -944,7 +1027,6 @@ public class WaveformView implements IWaveformView  {
 		}
 	}
 
-
 	protected void paintNames(GC gc, Rectangle rect) {
 		if (!streams.isEmpty()) {
 			try {
@@ -960,7 +1042,8 @@ public class WaveformView implements IWaveformView  {
 						subArea.height *= w.getWidth();
 					drawTextFormat(gc, subArea, firstKey, w.getFullName(), trackEntry.selected);
 				} else {
-					for (Entry<Integer, TrackEntry> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()) {
+					for (Entry<Integer, TrackEntry> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true)
+							.entrySet()) {
 						IWaveform w = entry.getValue().waveform;
 						subArea.height = styleProvider.getTrackHeight();
 						if (w.getType() == WaveformType.TRANSACTION)
@@ -968,7 +1051,8 @@ public class WaveformView implements IWaveformView  {
 						drawTextFormat(gc, subArea, entry.getKey(), w.getFullName(), entry.getValue().selected);
 					}
 				}
-			}catch(NoSuchElementException e){}
+			} catch (NoSuchElementException e) {
+			}
 		}
 	}
 
@@ -993,10 +1077,12 @@ public class WaveformView implements IWaveformView  {
 						subArea.height = styleProvider.getTrackHeight();
 						if (w.getType() == WaveformType.TRANSACTION)
 							subArea.height *= w.getWidth();
-						drawValue(gc, subArea, entry.getKey(), entry.getValue().currentValue, entry.getValue().selected);
+						drawValue(gc, subArea, entry.getKey(), entry.getValue().currentValue,
+								entry.getValue().selected);
 					}
 				}
-			}catch(NoSuchElementException e){}
+			} catch (NoSuchElementException e) {
+			}
 		}
 	}
 
@@ -1005,7 +1091,8 @@ public class WaveformView implements IWaveformView  {
 		for (int offset = 0; offset < subArea.height; offset += styleProvider.getTrackHeight()) {
 			int endIndex = value.indexOf('|', beginIndex);
 			String str = endIndex < 0 ? value.substring(beginIndex) : value.substring(beginIndex, endIndex);
-			drawTextFormat(gc, new Rectangle(subArea.x, subArea.y, subArea.width, styleProvider.getTrackHeight()), yOffset+offset, str, highlite);
+			drawTextFormat(gc, new Rectangle(subArea.x, subArea.y, subArea.width, styleProvider.getTrackHeight()),
+					yOffset + offset, str, highlite);
 			beginIndex = endIndex < 0 ? beginIndex : endIndex + 1;
 		}
 	}
@@ -1025,12 +1112,13 @@ public class WaveformView implements IWaveformView  {
 		gc.drawText(value, subArea.x + 5, subArea.y + yOffset + (styleProvider.getTrackHeight() - size.y) / 2, true);
 	}
 
-
 	public void setHighliteRelation(RelationType relationType) {
 		this.waveformCanvas.setHighliteRelation(relationType);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getMaxTime()
 	 */
 	@Override
@@ -1038,7 +1126,9 @@ public class WaveformView implements IWaveformView  {
 		return waveformCanvas.getMaxTime();
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setMaxTime(long)
 	 */
 	@Override
@@ -1046,7 +1136,9 @@ public class WaveformView implements IWaveformView  {
 		this.waveformCanvas.setMaxTime(maxTime);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setZoomLevel(int)
 	 */
 	@Override
@@ -1055,7 +1147,9 @@ public class WaveformView implements IWaveformView  {
 		waveformCanvas.reveal(getCursorTime());
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getZoomLevel()
 	 */
 	@Override
@@ -1063,7 +1157,9 @@ public class WaveformView implements IWaveformView  {
 		return waveformCanvas.getZoomLevel();
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setCursorTime(long)
 	 */
 	@Override
@@ -1073,7 +1169,9 @@ public class WaveformView implements IWaveformView  {
 		pcs.firePropertyChange(CURSOR_PROPERTY, oldVal, time);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setMarkerTime(long, int)
 	 */
 	@Override
@@ -1085,7 +1183,9 @@ public class WaveformView implements IWaveformView  {
 		}
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getCursorTime()
 	 */
 	@Override
@@ -1093,7 +1193,9 @@ public class WaveformView implements IWaveformView  {
 		return waveformCanvas.getCursorPainters().get(0).getTime();
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getActMarkerTime()
 	 */
 	@Override
@@ -1104,11 +1206,14 @@ public class WaveformView implements IWaveformView  {
 	@Override
 	public List<ICursor> getCursorList() {
 		List<ICursor> cursors = new LinkedList<>();
-		for(CursorPainter painter:waveformCanvas.getCursorPainters()) cursors.add(painter);
+		for (CursorPainter painter : waveformCanvas.getCursorPainters())
+			cursors.add(painter);
 		return Collections.unmodifiableList(cursors);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getMarkerTime(int)
 	 */
 	@Override
@@ -1125,9 +1230,11 @@ public class WaveformView implements IWaveformView  {
 			public void dragStart(DragSourceEvent event) {
 				if (event.y < tracksVerticalHeight) {
 					event.doit = true;
-					LocalSelectionTransfer.getTransfer().setSelection(new StructuredSelection(currentWaveformSelection));
+					LocalSelectionTransfer.getTransfer()
+							.setSelection(new StructuredSelection(currentWaveformSelection));
 				}
 			}
+
 			@Override
 			public void dragSetData(DragSourceEvent event) {
 				if (LocalSelectionTransfer.getTransfer().isSupportedType(event.dataType)) {
@@ -1165,6 +1272,7 @@ public class WaveformView implements IWaveformView  {
 					}
 				}
 			}
+
 			@Override
 			public void dropAccept(DropTargetEvent event) {
 				if (event.detail != DND.DROP_MOVE) {
@@ -1175,7 +1283,8 @@ public class WaveformView implements IWaveformView  {
 	}
 
 	public TrackEntry getEntryFor(ITx source) {
-		Optional<TrackEntry> optGen = streams.stream().filter(e->source.getGenerator().equals(e.waveform)).findFirst();
+		Optional<TrackEntry> optGen = streams.stream().filter(e -> source.getGenerator().equals(e.waveform))
+				.findFirst();
 		if (optGen.isPresent())
 			return optGen.get();
 		Optional<TrackEntry> optStr = streams.stream().filter(e -> source.getStream().equals(e.waveform)).findFirst();
@@ -1214,6 +1323,7 @@ public class WaveformView implements IWaveformView  {
 					}
 				}
 			}
+
 			@Override
 			public void dragSetData(DragSourceEvent event) {
 				if (LocalSelectionTransfer.getTransfer().isSupportedType(event.dataType)) {
@@ -1221,15 +1331,6 @@ public class WaveformView implements IWaveformView  {
 				}
 			}
 		});
-		//		int style = SWT.MULTI | SWT.WRAP | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER;
-		//		final StyledText text = new StyledText(waveformCanvas, style);
-		//		text.setText("Dragging");
-		//		dragSource.setDragSourceEffect(new DragSourceEffect(text) {
-		//			@Override
-		//			public void dragStart(DragSourceEvent event) {
-		//				event.image = waveformCanvas.getDisplay().getSystemImage(SWT.ICON_WARNING);
-		//			}
-		//		});
 	}
 
 	private void createWaveformDropTarget(final Canvas canvas) {
@@ -1241,26 +1342,29 @@ public class WaveformView implements IWaveformView  {
 			public void drop(DropTargetEvent event) {
 				if (LocalSelectionTransfer.getTransfer().isSupportedType(event.currentDataType)) {
 					ISelection sel = LocalSelectionTransfer.getTransfer().getSelection();
-					if(sel instanceof IStructuredSelection &&
+					if (sel instanceof IStructuredSelection
-							((IStructuredSelection)sel).getFirstElement() instanceof CursorPainter){
+							&& ((IStructuredSelection) sel).getFirstElement() instanceof CursorPainter) {
 						CursorPainter painter = (CursorPainter) ((IStructuredSelection) sel).getFirstElement();
 						painter.setDragging(false);
 						updateWaveform(canvas, event, painter);
 					}
 				}
 			}
+
 			@Override
 			public void dropAccept(DropTargetEvent event) {
 				Point offset = canvas.toControl(event.x, event.y);
-				if (event.detail != DND.DROP_MOVE || offset.y > trackVerticalOffset.lastKey() + styleProvider.getTrackHeight()) {
+				if (event.detail != DND.DROP_MOVE
+						|| offset.y > trackVerticalOffset.lastKey() + styleProvider.getTrackHeight()) {
 					event.detail = DND.DROP_NONE;
 				}
 			}
+
 			@Override
 			public void dragOver(DropTargetEvent event) {
 				ISelection sel = LocalSelectionTransfer.getTransfer().getSelection();
-				if(sel instanceof IStructuredSelection &&
+				if (sel instanceof IStructuredSelection
-						((IStructuredSelection)sel).getFirstElement() instanceof CursorPainter){
+						&& ((IStructuredSelection) sel).getFirstElement() instanceof CursorPainter) {
 					updateWaveform(canvas, event, (CursorPainter) ((IStructuredSelection) sel).getFirstElement());
 				}
 			}
@@ -1287,16 +1391,24 @@ public class WaveformView implements IWaveformView  {
 
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#addPropertyChangeListener(java.beans.PropertyChangeListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#addPropertyChangeListener(
+	 * java.beans.PropertyChangeListener)
 	 */
 	@Override
 	public void addPropertyChangeListener(PropertyChangeListener listener) {
 		this.pcs.addPropertyChangeListener(listener);
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#addPropertyChangeListener(
+	 * java.lang.String, java.beans.PropertyChangeListener)
 	 */
 	@Override
 	public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
@@ -1311,16 +1423,24 @@ public class WaveformView implements IWaveformView  {
 		return this.pcs.getPropertyChangeListeners(propertyName);
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#removePropertyChangeListener(java.beans.PropertyChangeListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#removePropertyChangeListener(
+	 * java.beans.PropertyChangeListener)
 	 */
 	@Override
 	public void removePropertyChangeListener(PropertyChangeListener listener) {
 		this.pcs.removePropertyChangeListener(listener);
 	}
 
-	/* (non-Javadoc)
+	/*
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener)
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * com.minres.scviewer.database.swt.IWaveformPanel#removePropertyChangeListener(
+	 * java.lang.String, java.beans.PropertyChangeListener)
 	 */
 	@Override
 	public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
@@ -1331,7 +1451,9 @@ public class WaveformView implements IWaveformView  {
 		return this.pcs.hasListeners(propertyName);
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getScaledTime(long)
 	 */
 	@Override
@@ -1342,7 +1464,9 @@ public class WaveformView implements IWaveformView  {
 		return sb.append(df.format(scaledTime)).append(waveformCanvas.getUnitStr()).toString();
 	}
 
-	/* (non-Javadoc)
+	/*
+	 * (non-Javadoc)
+	 * 
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getZoomLevels()
 	 */
 	@Override
@@ -1371,8 +1495,10 @@ public class WaveformView implements IWaveformView  {
 
 	@Override
 	public void scrollHorizontal(int percent) {
-		if(percent<-100) percent=-100;
+		if (percent < -100)
-		if(percent>100) percent=100;
+			percent = -100;
+		if (percent > 100)
+			percent = 100;
 		int diff = (waveformCanvas.getWidth() * percent) / 100;
 		Point o = waveformCanvas.getOrigin();
 		waveformCanvas.setOrigin(o.x - diff, o.y);

plugins/com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDDbLoader.java

@@ -10,6 +10,8 @@
  *******************************************************************************/
 package com.minres.scviewer.database.vcd;
 
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -23,6 +25,7 @@ import java.util.TreeMap;
 import java.util.Vector;
 import java.util.zip.GZIPInputStream;
 
+import com.google.common.collect.Iterables;
 import com.minres.scviewer.database.BitVector;
 import com.minres.scviewer.database.DoubleVal;
 import com.minres.scviewer.database.IEvent;
@@ -50,6 +53,9 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 	/** The max time. */
 	private long maxTime;
 
+	/** The pcs. */
+	protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
+
 	private static boolean isGzipped(File f) {
 		try (InputStream is = new FileInputStream(f)) {
 			byte [] signature = new byte[2];
@@ -62,23 +68,44 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 	}
 
 
-	/* (non-Javadoc)
+	/**
-	 * @see com.minres.scviewer.database.ITrDb#load(java.io.File)
+	 * Can load.
+	 *
+	 * @param inputFile the input file
+	 * @return true, if successful
 	 */
-	@SuppressWarnings("unchecked")
 	@Override
-	public boolean load(IWaveformDb db, File file) throws InputFormatException {
+	public boolean canLoad(File inputFile) {
-		dispose();
+		if(!inputFile.isDirectory() || inputFile.exists()) {
-		if(file.isDirectory() || !file.exists()) return false;
+			String name = inputFile.getName();
-		this.maxTime=0;
-		boolean res = false;
-		try {
-			String name = file.getCanonicalFile().getName();
 			if(!(name.endsWith(".vcd") ||
 					name.endsWith(".vcdz") ||
 					name.endsWith(".vcdgz")  ||
 					name.endsWith(".vcd.gz")) )
 				return false;
+			boolean gzipped = isGzipped(inputFile);
+			try(InputStream stream = gzipped ? new GZIPInputStream(new FileInputStream(inputFile)) : new FileInputStream(inputFile)){
+				byte[] buffer = new byte[8];
+				if (stream.read(buffer, 0, buffer.length) == buffer.length) {
+					return buffer[0]=='$';
+				}
+			} catch (Exception e) {
+				return false;
+			}
+		}
+		return false;
+	}
+
+	/* (non-Javadoc)
+	 * @see com.minres.scviewer.database.ITrDb#load(java.io.File)
+	 */
+	@SuppressWarnings("unchecked")
+	@Override
+	public void load(IWaveformDb db, File file) throws InputFormatException {
+		dispose();
+		this.maxTime=0;
+		boolean res = false;
+		try {
 			signals = new Vector<>();
 			moduleStack= new ArrayDeque<>();
 			FileInputStream fis = new FileInputStream(file);
@@ -89,13 +116,13 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 			throw new InputFormatException();
 		}
 		if(!res) throw new InputFormatException();
-		// calculate max time of database
+		// calculate max time of this database
 		for(IWaveform waveform:signals) {
 			NavigableMap<Long, IEvent[]> events =waveform.getEvents();
-			if(events.size()>0)
+			if(!events.isEmpty())
 				maxTime= Math.max(maxTime, events.lastKey());
 		}
-		// extend signals to hav a last value set at max time
+		// extend signals to have a last value set at max time
 		for(IWaveform s:signals){
 			if(s instanceof VCDSignal<?>) {
 				TreeMap<Long,?> events = (TreeMap<Long, ?>) ((VCDSignal<?>)s).getEvents();
@@ -108,7 +135,7 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 				}
 			}
 		}
-		return true;
+		pcs.firePropertyChange(IWaveformDbLoader.LOADING_FINISHED, null, null);
 	}
 
 	public void dispose() {
@@ -167,6 +194,7 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 			signals.add( i<0 ? new VCDSignal<BitVector>(id, netName, width) :
 				new VCDSignal<BitVector>((VCDSignal<BitVector>)signals.get(i), id, netName));
 		}
+		pcs.firePropertyChange(IWaveformDbLoader.SIGNAL_ADDED, null, Iterables.getLast(signals));
 		return id;
 	}
 
@@ -209,4 +237,25 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 		return Collections.emptyList();
 	}
 
+	/**
+	 * Adds the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void addPropertyChangeListener(PropertyChangeListener l) {
+		pcs.addPropertyChangeListener(l);
+	}
+
+	/**
+	 * Removes the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void removePropertyChangeListener(PropertyChangeListener l) {
+		pcs.removePropertyChangeListener(l);
+	}
+
+
 }

plugins/com.minres.scviewer.database.vcd/src/com/minres/scviewer/database/vcd/VCDFileParser.java

@@ -161,12 +161,9 @@ class VCDFileParser {
 		else if (tokenizer.sval.equals("$enddefinitions")) {
 			match("$end");
 			return false;
-		} else {
+		} else do {
-			// Ignore this defintion
-			do {
 			if (!nextToken()) return false;
 		} while (!tokenizer.sval.equals("$end"));
-		}
 
 		return true;
 	}

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/HierNode.java

@@ -13,6 +13,7 @@ package com.minres.scviewer.database;
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -27,18 +28,10 @@ public class HierNode implements IHierNode {
 	protected IHierNode parent = null;
 
 	/** The childs. */
-	protected ArrayList<IHierNode> childs;
+	protected List<IHierNode> childNodes = Collections.synchronizedList(new ArrayList<>());
 
 	/** The pcs. */
-	protected PropertyChangeSupport pcs;
+	protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
-
-	/**
-	 * Instantiates a new hier node.
-	 */
-	public HierNode() {
-		childs = new ArrayList<>();
-		pcs = new PropertyChangeSupport(this);
-	}
 
 	/**
 	 * Instantiates a new hier node.
@@ -46,7 +39,6 @@ public class HierNode implements IHierNode {
 	 * @param name the name
 	 */
 	public HierNode(String name) {
-		this();
 		this.name = name;
 	}
 
@@ -57,11 +49,16 @@ public class HierNode implements IHierNode {
 	 * @param parent the parent
 	 */
 	public HierNode(String name, IHierNode parent) {
-		this();
 		this.name = name;
 		this.parent = parent;
 	}
 
+	/**
+	 * Instantiates a new hier node.
+	 */
+	public HierNode() {
+	}
+
 	/**
 	 * Adds the property change listener.
 	 *
@@ -115,6 +112,16 @@ public class HierNode implements IHierNode {
 		this.name = name;
 	}
 
+	/**
+	 * Gets the parent.
+	 *
+	 * @return the parent
+	 */
+	@Override
+	public IHierNode getParent() {
+		return parent;
+	}
+
 	/**
 	 * Sets the parent.
 	 *
@@ -132,7 +139,7 @@ public class HierNode implements IHierNode {
 	 */
 	@Override
 	public List<IHierNode> getChildNodes() {
-		return childs;
+		return Collections.unmodifiableList(childNodes);
 	}
 
 	/**
@@ -140,9 +147,10 @@ public class HierNode implements IHierNode {
 	 *
 	 * @param child the child
 	 */
+	@Override
 	public void addChild(IHierNode child) {
-		if (!childs.contains(child)) {
+		if (!childNodes.contains(child)) {
-			childs.add(child);
+			childNodes.add(child);
 			child.setParent(this);
 		}
 	}

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/IHierNode.java

@@ -18,6 +18,15 @@ import java.util.List;
  */
 public interface IHierNode extends Comparable<IHierNode> {
 
+	/** The Constant WAVEFORMS. */
+	static final String WAVEFORMS = "Waveforms";
+	
+	/** The Constant CHILDS. */
+	static final String CHILDS = "Childs";
+	
+	/** The Constant LOADING_FINISHED. */
+	static final String LOADING_FINISHED = "LoadingFinished";
+
 	/**
 	 * Attach a non-null PropertyChangeListener to this object.
 	 * 
@@ -61,6 +70,13 @@ public interface IHierNode extends Comparable<IHierNode> {
 	 */
 	public void setParent(IHierNode parent);
 
+	/**
+	 * Gets the parent.
+	 *
+	 * @return the parent
+	 */
+	public IHierNode getParent();
+
 	/**
 	 * Gets the child nodes.
 	 *
@@ -68,6 +84,12 @@ public interface IHierNode extends Comparable<IHierNode> {
 	 */
 	public List<IHierNode> getChildNodes();
 
+	/**
+	 * Adds the child.
+	 *
+	 * @param child the child
+	 */
+	public void addChild(IHierNode child);
 	/**
 	 * Derive waveform.
 	 *

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/IWaveformDbLoader.java

@@ -10,6 +10,7 @@
  *******************************************************************************/
 package com.minres.scviewer.database;
 
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.util.Collection;
 
@@ -17,38 +18,51 @@ import java.util.Collection;
  * The Interface IWaveformDbLoader.
  */
 public interface IWaveformDbLoader {
-//	static final String STREAM_ADDED = "StreamAdded";
-//	
-//	static final String GENERATOR_ADDED = "GeneratorAdded";
-//	
-//	static final String LOADING_FINISHED = "LoadingFinished";
-//	/**
-//	 * Attach a non-null PropertyChangeListener to this object.
-//	 * 
-//	 * @param l
-//	 *            a non-null PropertyChangeListener instance
-//	 * @throws IllegalArgumentException
-//	 *             if the parameter is null
-//	 */
-//	public void addPropertyChangeListener(PropertyChangeListener l);
-//
-//	/**
-//	 * Remove a PropertyChangeListener from this component.
-//	 * 
-//	 * @param l
-//	 *            a PropertyChangeListener instance
-//	 */
-//	public void removePropertyChangeListener(PropertyChangeListener l) ;
 	
+	/** The Constant STREAM_ADDED. */
+	static final String STREAM_ADDED = "StreamAdded";
+	
+	/** The Constant STREAM_ADDED. */
+	static final String SIGNAL_ADDED = "SignalAdded";
+	
+	/** The Constant GENERATOR_ADDED. */
+	static final String GENERATOR_ADDED = "GeneratorAdded";
+	
+	/** The Constant LOADING_FINISHED. */
+	static final String LOADING_FINISHED = "LoadingFinished";
+	/**
+	 * Attach a non-null PropertyChangeListener to this object.
+	 * 
+	 * @param l
+	 *            a non-null PropertyChangeListener instance
+	 * @throws IllegalArgumentException
+	 *             if the parameter is null
+	 */
+	public void addPropertyChangeListener(PropertyChangeListener l);
+
+	/**
+	 * Remove a PropertyChangeListener from this component.
+	 * 
+	 * @param l
+	 *            a PropertyChangeListener instance
+	 */
+	public void removePropertyChangeListener(PropertyChangeListener l) ;
+
+	/**
+	 * Can load the given file.
+	 *
+	 * @param inputFile the input file
+	 * @return true, if successful
+	 */
+	public boolean canLoad(File inputFile);
 	/**
 	 * Load.
 	 *
 	 * @param db  the db
-	 * @param inp the inp
+	 * @param inputFile the input file
-	 * @return true, if successful
 	 * @throws InputFormatException the input format exception
 	 */
-	public boolean load(IWaveformDb db, File inp) throws InputFormatException;
+	public void load(IWaveformDb db, File inputFile) throws InputFormatException;
 
 	/**
 	 * Gets the max time.

plugins/com.minres.scviewer.database/src/com/minres/scviewer/database/internal/WaveformDb.java

@@ -10,6 +10,8 @@
  *******************************************************************************/
 package com.minres.scviewer.database.internal;
 
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -28,7 +30,7 @@ import com.minres.scviewer.database.RelationType;
 /**
  * The Class WaveformDb.
  */
-public class WaveformDb extends HierNode implements IWaveformDb {
+public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeListener {
 
 	/** The loaders. */
 	private static List<IWaveformDbLoader> loaders = new LinkedList<>();
@@ -122,8 +124,11 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 	@Override
 	public boolean load(File inp) {
 		for (IWaveformDbLoader loader : loaders) {
+			if(loader.canLoad(inp)) {
 				try {
-				if (loader.load(this, inp)) {
+					loader.addPropertyChangeListener(this);
+					loader.load(this, inp);
+					loader.removePropertyChangeListener(this);
 					for (IWaveform w : loader.getAllWaves()) {
 						waveforms.put(w.getFullName(), w);
 					}
@@ -134,15 +139,14 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 						name = getFileBasename(inp.getName());
 					buildHierarchyNodes();
 					relationTypes.addAll(loader.getAllRelationTypes());
-					pcs.firePropertyChange("WAVEFORMS", null, waveforms);
+					pcs.firePropertyChange(IHierNode.LOADING_FINISHED, null, null);
-					pcs.firePropertyChange("CHILDS", null, childs);
 					loaded = true;
 					return true;
-				}
 				} catch (Exception e) {
 					return false;
 				}
 			}
+		}
 		return false;
 	}
 
@@ -167,7 +171,7 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 	@Override
 	public void clear() {
 		waveforms.clear();
-		childs.clear();
+		childNodes.clear();
 		loaded = false;
 	}
 
@@ -180,12 +184,38 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 		return loaded;
 	}
 
+	@Override
+	public void propertyChange(PropertyChangeEvent evt) {
+		if(IWaveformDbLoader.SIGNAL_ADDED.equals(evt.getPropertyName()) || 
+				IWaveformDbLoader.STREAM_ADDED.equals(evt.getPropertyName())) {
+			IWaveform waveform = (IWaveform) evt.getNewValue();
+			putInHierarchy(waveform);
+			pcs.firePropertyChange(IHierNode.WAVEFORMS, null, waveforms);
+			pcs.firePropertyChange(IHierNode.CHILDS, null, childNodes);
+		} else if(IWaveformDbLoader.GENERATOR_ADDED.equals(evt.getPropertyName())) {
+			pcs.firePropertyChange(IHierNode.CHILDS, null, childNodes);			
+		}
+	}
+
 	/**
 	 * Builds the hierarchy nodes.
 	 */
 	private void buildHierarchyNodes() {
+		boolean needsSorting=false;
 		for (IWaveform stream : getAllWaves()) {
-			String[] hier = stream.getName().split("\\.");
+			if(stream.getParent()==null) {
+				putInHierarchy(stream);
+				needsSorting=true;
+			}
+		}
+		if(needsSorting) {
+			pcs.firePropertyChange(IHierNode.WAVEFORMS, null, waveforms);
+			pcs.firePropertyChange(IHierNode.CHILDS, null, childNodes);
+		}
+	}
+
+	private synchronized void putInHierarchy(IWaveform waveform) {
+		String[] hier = waveform.getName().split("\\.");
 		IHierNode node = this;
 		for (int i = 0; i < hier.length - 1; ++i) {
 			String name = hier[i];
@@ -201,28 +231,13 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 				break;
 			}
 			HierNode newNode = new HierNode(name, node);
-				node.getChildNodes().add(newNode);
+			node.addChild(newNode);
 			node = newNode;
 
 		}
-			node.getChildNodes().add(stream);
+		node.addChild(waveform);
-			stream.setParent(node);
+		waveform.setParent(node);
-			stream.setName(hier[hier.length - 1]);
+		waveform.setName(hier[hier.length - 1]);
-		}
-		sortRecursive(this);
-	}
-
-	/**
-	 * Sort recursive.
-	 *
-	 * @param node the node
-	 */
-	private void sortRecursive(IHierNode node) {
-		Collections.sort(node.getChildNodes(), (IHierNode o1, IHierNode o2) -> o1.getName().compareTo(o2.getName()));
-		for (IHierNode n : node.getChildNodes()) {
-			if (!n.getChildNodes().isEmpty())
-				sortRecursive(n);
-		}
 	}
 
 	/**
@@ -234,4 +249,5 @@ public class WaveformDb extends HierNode implements IWaveformDb {
 	public List<RelationType> getAllRelationTypes() {
 		return relationTypes;
 	}
+
 }

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/Constants.java

@@ -0,0 +1,9 @@
+package com.minres.scviewer.e4.application;
+
+public class Constants {
+	
+	public static final String PLUGIN_ID = "com.minres.scviewer.e4.application"; //$NON-NLS-1$
+
+	private Constants() {}
+
+}

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/AddWaveformHandler.java

@@ -29,8 +29,8 @@ import com.minres.scviewer.e4.application.parts.DesignBrowser;
 
 public class AddWaveformHandler {
 
-	public final static String PARAM_WHERE_ID="com.minres.scviewer.e4.application.command.addwaveform.where"; //$NON-NLS-1$
+	public static final String PARAM_WHERE_ID="com.minres.scviewer.e4.application.command.addwaveform.where"; //$NON-NLS-1$
-	public final static String PARAM_ALL_ID="com.minres.scviewer.e4.application.command.addwaveform.all"; //$NON-NLS-1$
+	public static final String PARAM_ALL_ID="com.minres.scviewer.e4.application.command.addwaveform.all"; //$NON-NLS-1$
 	
 	@Inject @Optional DesignBrowser designBrowser;
 	
@@ -42,8 +42,11 @@ public class AddWaveformHandler {
 		if(designBrowser==null || designBrowser.getActiveWaveformViewerPart()==null) return false;
 		boolean before = "before".equalsIgnoreCase(where); //$NON-NLS-1$
 		IStructuredSelection waveformSelection = null;
-		if(designBrowser.getActiveWaveformViewerPart()!=null)
+		if(designBrowser.getActiveWaveformViewerPart()!=null) {
+			if(!designBrowser.getActiveWaveformViewerPart().getDatabase().isLoaded())
+				return false;
 			waveformSelection = (IStructuredSelection)designBrowser.getActiveWaveformViewerPart().getSelection();
+		}
 		if("true".equalsIgnoreCase(all))  //$NON-NLS-1$
 			return designBrowser.getFilteredChildren().length>0 && 
 					(!before || (waveformSelection!=null && waveformSelection.size()>0));

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/internal/status/HeapStatus.java

@@ -36,6 +36,8 @@ import org.eclipse.wb.swt.ResourceManager;
 import org.eclipse.wb.swt.SWTResourceManager;
 import org.osgi.service.prefs.Preferences;
 
+import com.minres.scviewer.e4.application.Constants;
+
 /**
  * The Heap Status control, which shows the heap usage statistics in the window trim.
  * Part of the code is taken from the eclipse internal implementation
@@ -162,7 +164,7 @@ public class HeapStatus extends Composite {
         button = new Canvas(this, SWT.NONE);
         button.setToolTipText("Run Garbage Collection");
 
-		ImageDescriptor imageDesc = ResourceManager.getPluginImageDescriptor("com.minres.scviewer.e4.application", "icons/trash.png"); //$NON-NLS-1$
+		ImageDescriptor imageDesc = ResourceManager.getPluginImageDescriptor(Constants.PLUGIN_ID, "icons/trash.png"); //$NON-NLS-1$
 		Display display = getDisplay();
 		gcImage = imageDesc.createImage();
 		if (gcImage != null) {
@@ -228,6 +230,8 @@ public class HeapStatus extends Composite {
 						arm(false);
 					}
                     break;
+                default:
+                	break;
                 }
             }
 
@@ -301,8 +305,8 @@ public class HeapStatus extends Composite {
 		long max = Long.MAX_VALUE;
 		try {
 			// Must use reflect to allow compilation against JCL/Foundation
-			Method maxMemMethod = Runtime.class.getMethod("maxMemory", new Class[0]); //$NON-NLS-1$
+			Method maxMemMethod = Runtime.class.getMethod("maxMemory"); //$NON-NLS-1$
-			Object o = maxMemMethod.invoke(Runtime.getRuntime(), new Object[0]);
+			Object o = maxMemMethod.invoke(Runtime.getRuntime());
 			if (o instanceof Long) {
 				max = ((Long) o).longValue();
 			}
@@ -441,14 +445,7 @@ public class HeapStatus extends Composite {
 			@Override
 			public void run() {
 				busyGC();
-				getDisplay().asyncExec(new Runnable() {
+				getDisplay().asyncExec(() -> { if (!isDisposed()) gcRunning(false);	});
-					@Override
-					public void run() {
-						if (!isDisposed()) {
-							gcRunning(false);
-						}
-					}
-				});
 			}
 		};
 		t.start();
@@ -669,7 +666,7 @@ public class HeapStatus extends Composite {
      * @return the string
      */
     private String convertToMegString(long numBytes) {
-        return new Long(convertToMeg(numBytes)).toString()+"M";
+        return Long.toString(convertToMeg(numBytes))+"M";
     }
 
     /**

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/AboutDialog.java

@@ -26,8 +26,6 @@ import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.StyleRange;
 import org.eclipse.swt.custom.StyledText;
-import org.eclipse.swt.events.PaintEvent;
-import org.eclipse.swt.events.PaintListener;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Point;
@@ -36,13 +34,12 @@ import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Canvas;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.wb.swt.ResourceManager;
 import org.eclipse.wb.swt.SWTResourceManager;
 import org.osgi.framework.Version;
 
+import com.minres.scviewer.e4.application.Constants;
 import com.minres.scviewer.e4.application.Messages;
 
 /**
@@ -73,34 +70,32 @@ public class AboutDialog extends Dialog {
 	@Override
 	protected Control createDialogArea(Composite parent) {
 		Composite composite = new Composite(parent, SWT.NONE);
-		GridData gd_composite = new GridData(SWT.LEFT, SWT.FILL, true, true);
+		GridData gdComposite = new GridData(SWT.LEFT, SWT.FILL, true, true);
-		gd_composite.widthHint = 600;
+		gdComposite.widthHint = 600;
-		gd_composite.heightHint =300;
+		gdComposite.heightHint =300;
-		composite.setLayoutData(gd_composite);
+		composite.setLayoutData(gdComposite);
 		composite.setLayout(new GridLayout(2, false));
 		
 		final Color white=SWTResourceManager.getColor(SWT.COLOR_WHITE);
-		final Image scviewerLogo=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/SCViewer_logo.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		final Image scviewerLogo=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/SCViewer_logo.png"); //$NON-NLS-1$
-		final Image minresLogo=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/Minres_logo.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		final Image minresLogo=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/Minres_logo.png"); //$NON-NLS-1$
 
 		Canvas canvas = new Canvas(composite,SWT.NO_REDRAW_RESIZE);
-		GridData gd_canvas = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		GridData gdCanvas = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
-		gd_canvas.widthHint = 200;
+		gdCanvas.widthHint = 200;
-		gd_canvas.heightHint =300;
+		gdCanvas.heightHint =300;
-		canvas.setLayoutData(gd_canvas);
+		canvas.setLayoutData(gdCanvas);
-		canvas.addPaintListener(new PaintListener() {
+		canvas.addPaintListener(e -> {
-			public void paintControl(PaintEvent e) {
 				e.gc.setBackground(white);
 				e.gc.fillRectangle(e.x, e.y, e.width, e.height);
 				e.gc.drawImage(scviewerLogo,4,0);
 				e.gc.drawImage(minresLogo,0,200);
-			}
 		});
 
 		StyledText styledText = new StyledText(composite, SWT.V_SCROLL | SWT.BORDER);
 		styledText.setEditable(false);
-		GridData gd_styledText = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
+		GridData gdStyledText = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
-		styledText.setLayoutData(gd_styledText);
+		styledText.setLayoutData(gdStyledText);
 		Version version = Platform.getProduct().getDefiningBundle().getVersion();
 		String versionString = String.format("%d.%d.%d", version.getMajor(), version.getMinor(), version.getMicro());
 		String productTitle = NLS.bind(Messages.AboutDialog_0, versionString);
@@ -129,12 +124,9 @@ public class AboutDialog extends Dialog {
 			styleRange.length = matcher.end()-matcher.start();
 			styledText.setStyleRange(styleRange);
 	    }
-		styledText.addListener(SWT.MouseDown, new Listener() {
+		styledText.addListener(SWT.MouseDown, event -> {
-			@Override
-			public void handleEvent(Event event) {
 			// It is up to the application to determine when and how a link should be activated.
 			// links are activated on mouse down when the control key is held down 
-//				if ((event.stateMask & SWT.MOD1) != 0) {
 			try {
 				@SuppressWarnings("deprecation")
 				int offset = ((StyledText)event.widget).getOffsetAtLocation(new Point (event.x, event.y));
@@ -143,8 +135,6 @@ public class AboutDialog extends Dialog {
 					Desktop.getDesktop().browse(new java.net.URI(style.data.toString()));
 				}
 			} catch (IOException | URISyntaxException | IllegalArgumentException e) {}
-//				}
-			}
 		});
 		
 		styleRange.start = 0;
@@ -154,6 +144,7 @@ public class AboutDialog extends Dialog {
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 	 */
+	@Override
 	protected void createButtonsForButtonBar(Composite parent) {
 		// create OK button
 		createButton(parent, IDialogConstants.OK_ID, IDialogConstants.CLOSE_LABEL,	true);

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/DesignBrowser.java

@@ -13,7 +13,6 @@ package com.minres.scviewer.e4.application.parts;
 import java.beans.PropertyChangeListener;
 import java.lang.annotation.Annotation;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
@@ -65,6 +64,7 @@ import com.minres.scviewer.database.HierNode;
 import com.minres.scviewer.database.IHierNode;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.IWaveformDb;
+import com.minres.scviewer.e4.application.Constants;
 import com.minres.scviewer.e4.application.Messages;
 import com.minres.scviewer.e4.application.handlers.AddWaveformHandler;
 import com.minres.scviewer.e4.application.provider.TxDbContentProvider;
@@ -125,12 +125,17 @@ public class DesignBrowser {
 
 	/** The tree viewer pcl. */
 	private PropertyChangeListener treeViewerPCL = evt -> {
-		if("CHILDS".equals(evt.getPropertyName())){ //$NON-NLS-1$
+		if(IHierNode.CHILDS.equals(evt.getPropertyName())){ //$NON-NLS-1$
 			treeViewer.getTree().getDisplay().asyncExec(() -> treeViewer.refresh());
-		} else if("WAVEFORMS".equals(evt.getPropertyName())) {
+		} else if(IHierNode.WAVEFORMS.equals(evt.getPropertyName())) {
 			treeViewer.getTree().getDisplay().asyncExec(() -> {
-				IWaveformDb database = waveformViewerPart.getDatabase();
+				treeViewer.setInput(new IWaveformDb[]{waveformViewerPart.getDatabase()});
-				treeViewer.setInput(Arrays.asList(database.isLoaded()?new IWaveformDb[]{database}:new IWaveformDb[]{new LoadingWaveformDb()}));
+				treeViewer.refresh();
+			});
+		} else if(IHierNode.LOADING_FINISHED.equals(evt.getPropertyName())) {
+			treeViewer.getTree().getDisplay().asyncExec(() -> {
+				treeViewer.update(waveformViewerPart.getDatabase(), null);
+				DesignBrowser.this.updateButtons();
 			});
 		}
 	};
@@ -195,7 +200,12 @@ public class DesignBrowser {
 
 		treeViewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
 		treeViewer.getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
-		treeViewer.setContentProvider(new TxDbContentProvider());
+		treeViewer.setContentProvider(new TxDbContentProvider() {
+			@Override
+			public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+				updateButtons();
+			}
+		});
 		treeViewer.setLabelProvider(new TxDbLabelProvider());
 		treeViewer.addFilter(treeAttributeFilter);
 		treeViewer.setUseHashlookup(true);
@@ -236,7 +246,12 @@ public class DesignBrowser {
 		tableAttributeFilter = new StreamTableFilter();
 
 		txTableViewer = new TableViewer(parent);
-		txTableViewer.setContentProvider(new TxDbContentProvider(true));
+		txTableViewer.setContentProvider(new TxDbContentProvider(true) {
+			@Override
+			public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+				updateButtons();
+			}
+		});
 		txTableViewer.setLabelProvider(new TxDbLabelProvider());
 		txTableViewer.getTable().setLayoutData(new GridData(GridData.FILL_BOTH));
 		txTableViewer.addFilter(tableAttributeFilter);
@@ -258,7 +273,7 @@ public class DesignBrowser {
 
 		appendItem = new ToolItem(toolBar, SWT.NONE);
 		appendItem.setToolTipText(Messages.DesignBrowser_4);
-		appendItem.setImage(ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/append_wave.png")); //$NON-NLS-1$ //$NON-NLS-2$
+		appendItem.setImage(ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/append_wave.png")); //$NON-NLS-1$
 		appendItem.setEnabled(false);
 		appendItem.addSelectionListener(new SelectionAdapter() {
 			@Override
@@ -273,7 +288,7 @@ public class DesignBrowser {
 
 		insertItem = new ToolItem(toolBar, SWT.NONE);
 		insertItem.setToolTipText(Messages.DesignBrowser_8);
-		insertItem.setImage(ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/insert_wave.png")); //$NON-NLS-1$ //$NON-NLS-2$
+		insertItem.setImage(ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/insert_wave.png")); //$NON-NLS-1$
 		insertItem.setEnabled(false);
 		insertItem.addSelectionListener(new SelectionAdapter() {
 			@Override
@@ -356,7 +371,7 @@ public class DesignBrowser {
 			if(db==database) return; // do nothing if old and new database is the same
 			((List<IWaveformDb>)input).get(0).removePropertyChangeListener(treeViewerPCL);
 		}
-		treeViewer.setInput(Arrays.asList(database.isLoaded()?new IWaveformDb[]{database}:new IWaveformDb[]{new LoadingWaveformDb()}));
+		treeViewer.setInput(new IWaveformDb[]{database});
 		Object state=this.waveformViewerPart.retrieveDesignBrowerState();
 		if(state instanceof DBState) 
 			((DBState)state).apply();

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/FileBrowserDialog.java

@@ -5,7 +5,6 @@ import java.nio.file.FileSystems;
 import java.nio.file.PathMatcher;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Comparator;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -48,6 +47,8 @@ import org.eclipse.swt.widgets.ToolBar;
 import org.eclipse.swt.widgets.ToolItem;
 import org.eclipse.wb.swt.ResourceManager;
 
+import com.minres.scviewer.e4.application.Constants;
+
 public class FileBrowserDialog extends TrayDialog {
 
 	private Image folderImage;
@@ -80,9 +81,9 @@ public class FileBrowserDialog extends TrayDialog {
         
 	public FileBrowserDialog(Shell parentShell) {
 		super(parentShell);
-		folderImage=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/folder.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		folderImage=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/folder.png"); //$NON-NLS-1$
-		dbImage=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/database.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		dbImage=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/database.png"); //$NON-NLS-1$
-		fileImage=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/page_white.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		fileImage=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/page_white.png"); //$NON-NLS-1$
 		currentDirFile = new File(".");
 	}
 
@@ -148,7 +149,7 @@ public class FileBrowserDialog extends TrayDialog {
 		toolBar.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));
 	    final ToolItem toolbarItemUp = new ToolItem(toolBar, SWT.PUSH);
 	    toolbarItemUp.setToolTipText("up one level");
-	    toolbarItemUp.setImage(ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/arrow_up.png")); //$NON-NLS-1$ //$NON-NLS-2$);
+	    toolbarItemUp.setImage(ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/arrow_up.png")); //$NON-NLS-1$
 	    toolbarItemUp.addSelectionListener(new SelectionAdapter() {	
 			@Override
 			public void widgetSelected(SelectionEvent e) {
@@ -158,7 +159,7 @@ public class FileBrowserDialog extends TrayDialog {
 				}
 			}
 		});
-		tableViewer = new TableViewer(tableViewerParent, SWT.BORDER | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI);
+		tableViewer = new TableViewer(tableViewerParent, SWT.BORDER | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION);
 		tableViewer.getTable().setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.VERTICAL_ALIGN_FILL | GridData.HORIZONTAL_ALIGN_FILL));
 		tableViewer.addSelectionChangedListener(event -> {
 			IStructuredSelection sel = event.getStructuredSelection();
@@ -187,8 +188,8 @@ public class FileBrowserDialog extends TrayDialog {
 			public void mouseDown(MouseEvent e) { mouseUp(e); }
 			@Override
 			public void mouseUp(MouseEvent e) {
-				TableItem element = (TableItem)tableViewer.getTable().getItem(new Point(e.x, e.y));
 				final Table table = tableViewer.getTable();
+				TableItem element = table.getItem(new Point(e.x, e.y));
 				if (element == null )//&& (e.stateMask&SWT.MODIFIER_MASK)!=0)
 					table.deselectAll();
 				else {
@@ -231,7 +232,6 @@ public class FileBrowserDialog extends TrayDialog {
 		colEmpty.setLabelProvider(new FileTableLabelProvider() {
 			@Override public String getText(Object element) {	return ""; }
 		});
-		//colEmpty.getColumn().setWidth(200);
 		colEmpty.getColumn().setText("");
 		
 		fileTableComparator = new FileTableComparator();
@@ -268,7 +268,7 @@ public class FileBrowserDialog extends TrayDialog {
 	}
 
     private SelectionAdapter getSelectionAdapter(final TableColumn column, final int index) {
-        SelectionAdapter selectionAdapter = new SelectionAdapter() {
+        return new SelectionAdapter() {
             @Override
             public void widgetSelected(SelectionEvent e) {
             	fileTableComparator.setColumn(index);
@@ -278,7 +278,6 @@ public class FileBrowserDialog extends TrayDialog {
                 tableViewer.refresh();
             }
         };
-        return selectionAdapter;
     }
 
     private void setDirSelection(File f) {
@@ -334,11 +333,12 @@ public class FileBrowserDialog extends TrayDialog {
 		}
 		
 		public boolean matches(Object f) {
-			assert(f instanceof File);
+			if(f instanceof File) {
-			if(matchers.size()==0) return true;
+				if(matchers.isEmpty()) return true;
 				for (PathMatcher m : matchers) {
 					if(m.matches(((File)f).toPath())) return true;
 				}
+			}
 			return false;
 		}
 	}
@@ -349,10 +349,8 @@ public class FileBrowserDialog extends TrayDialog {
 			if(entries != null) {
 				List<File> res = Arrays.stream(entries)
 						.filter(file -> !(file.isFile()||file.getName().startsWith(".") ||globber.matches(file)))
-						.sorted(new Comparator<File>(){
+						.sorted( (f1, f2) -> f1.getName().compareTo(f2.getName()))
-							public int compare(File f1, File f2){return f1.getName().compareTo(f2.getName());} 
+						.collect(Collectors.toList());
-							})
-						.collect(Collectors.toList());   ;
 						return res.toArray();
 			} else
 				return new Object[0];
@@ -364,25 +362,20 @@ public class FileBrowserDialog extends TrayDialog {
 
 		public boolean hasChildren(Object arg0) {
 			Object[] obj = getChildren(arg0);
-			return obj == null ? false : obj.length > 0;
+			return obj != null && obj.length > 0;
 		}
 
 		public Object[] getElements(Object arg0) {
 			return File.listRoots();
 		}
 
-		public void dispose() {
-		}
-
-		public void inputChanged(Viewer arg0, Object arg1, Object arg2) {
-		}
 	}
 
 	class FileTreeLabelProvider implements ILabelProvider {
 		private List<ILabelProviderListener> listeners;
 
 		public FileTreeLabelProvider() {
-			listeners = new ArrayList<ILabelProviderListener>();
+			listeners = new ArrayList<>();
 		}
 
 		public Image getImage(Object arg0) {
@@ -400,6 +393,7 @@ public class FileBrowserDialog extends TrayDialog {
 
 		@Override
 		public void dispose() {
+			// nothing to ispose
 		}
 
 		public boolean isLabelProperty(Object arg0, String arg1) {
@@ -425,15 +419,12 @@ public class FileBrowserDialog extends TrayDialog {
 	    private int propertyIndex = 0;
 	    private boolean descending = false;
 
-	    public FileTableComparator() {
-	    }
-
 	    public int getDirection() {
 	        return descending ? SWT.DOWN : SWT.UP;
 	    }
 
 	    public void setColumn(int column) {
-	    	descending = column == this.propertyIndex?!descending : false;
+	    	descending = column == this.propertyIndex && !descending;
 	    	this.propertyIndex = column;
 	    }
 

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/LoadingWaveformDb.java

@@ -1,94 +0,0 @@
-package com.minres.scviewer.e4.application.parts;
-
-import java.beans.PropertyChangeListener;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.minres.scviewer.database.IDerivedWaveform;
-import com.minres.scviewer.database.IHierNode;
-import com.minres.scviewer.database.IWaveform;
-import com.minres.scviewer.database.IWaveformDb;
-import com.minres.scviewer.database.RelationType;
-import com.minres.scviewer.e4.application.Messages;
-
-public class LoadingWaveformDb implements IWaveformDb {
-
-	private final String label = Messages.LoadingWaveformDb_0; 
-
-	@Override
-	public void addPropertyChangeListener(PropertyChangeListener l) {
-	}
-
-	@Override
-	public void removePropertyChangeListener(PropertyChangeListener l) {
-	}
-
-	@Override
-	public String getFullName() {
-		return label;
-	}
-
-	@Override
-	public String getName() {
-		return label;
-	}
-
-	@Override
-	public void setName(String name) {
-	}
-
-	@Override
-	public void setParent(IHierNode name) {
-	}
-
-	@Override
-	public List<IHierNode> getChildNodes() {
-		return new ArrayList<IHierNode>();
-	}
-
-	@Override
-	public int compareTo(IHierNode o) {
-		return 0;
-	}
-
-	@Override
-	public Long getMaxTime() {
-		return new Long(0);
-	}
-
-	@Override
-	public IWaveform getStreamByName(String name) {
-		return null;
-	}
-
-	@Override
-	public List<IWaveform> getAllWaves() {
-		return new ArrayList<IWaveform>();
-	}
-
-	@Override
-	public List<RelationType> getAllRelationTypes() {
-		return new ArrayList<RelationType>();
-	}
-
-	@Override
-	public boolean load(File inp) {
-		return false;
-	}
-
-	@Override
-	public boolean isLoaded() {
-		return false;
-	}
-
-	@Override
-	public void clear() {
-	}
-
-	@Override
-	public IDerivedWaveform deriveWaveform() {
-		return null;
-	}
-
-}

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/TransactionDetails.java

@@ -85,9 +85,6 @@ public class TransactionDetails {
 	/** The selection service. */
 	@Inject	ESelectionService selectionService;
 
-	/** The name filter. */
-	private Text nameFilter;
-
 	/** The tree viewer. */
 	private TreeViewer treeViewer;
 
@@ -122,7 +119,7 @@ public class TransactionDetails {
 		top = new Composite(parent, SWT.NONE);
 		top.setLayout(new GridLayout(1, false));
 
-		nameFilter = new Text(top, SWT.BORDER);
+		Text nameFilter = new Text(top, SWT.BORDER);
 		nameFilter.setMessage(Messages.TransactionDetails_0);
 		nameFilter.addModifyListener(e -> {
 				attributeFilter.setSearchText(((Text) e.widget).getText());
@@ -204,11 +201,6 @@ public class TransactionDetails {
 				treeViewer.refresh();
 			}
 		});
-		// Pack the columns
-		//		for (int i = 0, n = table.getColumnCount(); i < n; i++) {
-		//			table.getColumn(i).pack();
-		//		}
-
 		// Turn on the header and the lines
 		tree.setHeaderVisible(true);
 		tree.setLinesVisible(true);

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java

@@ -75,6 +75,7 @@ import org.eclipse.swt.widgets.Widget;
 
 import com.minres.scviewer.database.DataType;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IHierNode;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.IWaveformDb;
 import com.minres.scviewer.database.IWaveformDbFactory;
@@ -251,7 +252,7 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		showHover=hover;
 		database = dbFactory.getDatabase();
 		database.addPropertyChangeListener(evt -> {
-			if ("WAVEFORMS".equals(evt.getPropertyName())) { //$NON-NLS-1$
+			if (IHierNode.WAVEFORMS.equals(evt.getPropertyName())) { //$NON-NLS-1$
 				myParent.getDisplay().syncExec(() -> waveformPane.setMaxTime(database.getMaxTime()));
 			}
 		});
@@ -536,6 +537,7 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 
 	protected void loadDatabase(final Map<String, String> state, long delay) {
 		fileMonitor.removeFileChangeListener(this);
+		database.setName(filesToLoad.stream().map(File::getName).reduce(null, (prefix, element) -> prefix==null? element : prefix + ","+ element));
 		Job job = new Job(Messages.WaveformViewer_15) {
 			@Override
 			protected IStatus run(IProgressMonitor monitor) {
@@ -683,9 +685,7 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		//clear old streams before loading tab settings
 		if(!waveformPane.getStreamList().isEmpty()) {
 			waveformPane.getStreamList().clear();
-			for (TrackEntry trackEntry : waveformPane.getStreamList()) {
+			waveformPane.getStreamList().stream().forEach(e -> e.selected=false);
-				trackEntry.selected = false;
-			}
 		}
 		try (FileInputStream in = new FileInputStream(fileName)) {
 			Properties props = new Properties();
@@ -916,15 +916,6 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		return ext;
 	}
 
-	/**
-	 * Gets the model.
-	 *
-	 * @return the model
-	 */
-	public IWaveformDb getModel() {
-		return database;
-	}
-
 	/**
 	 * Gets the database.
 	 *

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/preferences/PreferenceConstants.java

@@ -10,13 +10,15 @@
  *******************************************************************************/
 package com.minres.scviewer.e4.application.preferences;
 
+import com.minres.scviewer.e4.application.Constants;
+
 /**
  * The Class PreferenceConstants for the preferences dialog & setting.
  */
 public class PreferenceConstants {
 
 	/** The Constant PREFERENCES_SCOPE. */
-	public static final String PREFERENCES_SCOPE="com.minres.scviewer.e4.application"; //$NON-NLS-1$
+	public static final String PREFERENCES_SCOPE=Constants.PLUGIN_ID; //$NON-NLS-1$
 	
 	/** The Constant DATABASE_RELOAD. */
 	public static final String DATABASE_RELOAD="databaseReload"; //$NON-NLS-1$
@@ -81,5 +83,5 @@ public class PreferenceConstants {
 	/** The Constant MARKER_TEXT_COLOR. */
 	public static final String MARKER_TEXT_COLOR="MARKER_TEXT_COLOR"; //$NON-NLS-1$
 
-
+	private PreferenceConstants() {}
 }

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/provider/TxDbContentProvider.java

@@ -10,7 +10,8 @@
  *******************************************************************************/
 package com.minres.scviewer.e4.application.provider;
 
-import java.util.Collection;
+import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -54,12 +55,15 @@ public class TxDbContentProvider implements ITreeContentProvider {
 		if(tableEntries && inputElement instanceof IWaveformDb){
 			return new Object[]{};
 		}else if(inputElement instanceof IHierNode){
-			Collection<IHierNode> res = ((IHierNode)inputElement).getChildNodes().stream().filter(n ->
+			// make a copy as the laoder might continue to add waveforms
+			ArrayList<IHierNode> nodes = new ArrayList<>(((IHierNode)inputElement).getChildNodes());
+			return  nodes.stream().filter(n ->
 				tableEntries? n instanceof IWaveform : !n.getChildNodes().isEmpty()
-			).collect(Collectors.toList());
+			).sorted(Comparator.comparing(IHierNode::getName)).collect(Collectors.toList()).toArray();
-			return res.toArray();
 		}else if(inputElement instanceof List<?>){
 			return ((List<?>)inputElement).toArray();
+		}else if(inputElement instanceof Object[]){
+			return (Object[]) inputElement;
 		} else
 			return new Object[]{};
 	}

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/provider/TxDbLabelProvider.java

@@ -21,7 +21,7 @@ import org.eclipse.wb.swt.ResourceManager;
 import com.minres.scviewer.database.IHierNode;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.IWaveformDb;
-import com.minres.scviewer.e4.application.parts.LoadingWaveformDb;
+import com.minres.scviewer.e4.application.Constants;
 
 /**
  * The Class TxDbLabelProvider providing the labels for the respective viewers.
@@ -29,25 +29,44 @@ import com.minres.scviewer.e4.application.parts.LoadingWaveformDb;
 public class TxDbLabelProvider implements ILabelProvider {
 
 	/** The listeners. */
-	private List<ILabelProviderListener> listeners = new ArrayList<ILabelProviderListener>();
+	private List<ILabelProviderListener> listeners = new ArrayList<>();
 
 	/** The wave. */
-	private Image loadinDatabase, database, stream, signal, folder, wave;
+	private Image loadinDatabase;
 	
+	/** The database. */
+	private Image database;
+	
+	/** The stream. */
+	private Image stream;
+	
+	/** The signal. */
+	private Image signal;
+	
+	/** The folder. */
+	private Image folder;
+	
+	/** The wave. */
+	private Image wave;
 	
 	/**
 	 * Instantiates a new tx db label provider.
 	 */
 	public TxDbLabelProvider() {
 		super();
-		loadinDatabase=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/database_go.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		loadinDatabase=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/database_go.png"); //$NON-NLS-1$ //$NON-NLS-2$
-		database=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/database.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		database=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/database.png"); //$NON-NLS-1$ //$NON-NLS-2$
-		stream=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/stream.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		stream=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/stream.png"); //$NON-NLS-1$ //$NON-NLS-2$
-		folder=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/folder.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		folder=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/folder.png"); //$NON-NLS-1$ //$NON-NLS-2$
-		signal=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/signal.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		signal=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/signal.png"); //$NON-NLS-1$ //$NON-NLS-2$
-		wave=ResourceManager.getPluginImage("com.minres.scviewer.e4.application", "icons/wave.png"); //$NON-NLS-1$ //$NON-NLS-2$
+		wave=ResourceManager.getPluginImage(Constants.PLUGIN_ID, "icons/wave.png"); //$NON-NLS-1$ //$NON-NLS-2$
 	}
 
+	/**
+	 * Adds the listener.
+	 *
+	 * @param listener the listener
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
 	 */
@@ -56,13 +75,24 @@ public class TxDbLabelProvider implements ILabelProvider {
 		  listeners.add(listener);
 	}
 
+	/**
+	 * Dispose.
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
 	 */
 	@Override
 	public void dispose() {
+		// no resources to dispose
 	}
 
+	/**
+	 * Checks if is label property.
+	 *
+	 * @param element the element
+	 * @param property the property
+	 * @return true, if is label property
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String)
 	 */
@@ -71,6 +101,11 @@ public class TxDbLabelProvider implements ILabelProvider {
 		  return false;
 	}
 
+	/**
+	 * Removes the listener.
+	 *
+	 * @param listener the listener
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
 	 */
@@ -79,16 +114,19 @@ public class TxDbLabelProvider implements ILabelProvider {
 		  listeners.remove(listener);
 	}
 
+	/**
+	 * Gets the image.
+	 *
+	 * @param element the element
+	 * @return the image
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
 	 */
 	@Override
 	public Image getImage(Object element) {
 		if(element instanceof IWaveformDb){
-			if(element instanceof LoadingWaveformDb)
+			return ((IWaveformDb)element).isLoaded()?database:loadinDatabase;
-				return loadinDatabase;
-			else
-				return database;
 		}else if(element instanceof IWaveform){
 			switch(((IWaveform) element).getType()) {
 			case TRANSACTION:
@@ -110,6 +148,12 @@ public class TxDbLabelProvider implements ILabelProvider {
 			return null;
 	}
 
+	/**
+	 * Gets the text.
+	 *
+	 * @param element the element
+	 * @return the text
+	 */
 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
 	 */

plugins/com.minres.scviewer.e4.application/src/org/eclipse/wb/swt/ResourceManager.java

@@ -13,8 +13,6 @@ package org.eclipse.wb.swt;
 
 import java.io.File;
 import java.io.InputStream;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.HashMap;
@@ -61,7 +59,7 @@ public class ResourceManager extends SWTResourceManager {
 	/**
 	 * The map where we store our images. 
 	 */
-	private static Map<ImageDescriptor, Image> m_descriptorImageMap = new HashMap<ImageDescriptor, Image>();
+	private static Map<ImageDescriptor, Image> descriptorImageMap = new HashMap<>();
 
 	/**
 	 * Returns an {@link ImageDescriptor} stored in the file at the specified path
@@ -97,22 +95,16 @@ public class ResourceManager extends SWTResourceManager {
 	 * @return the {@link Image} based on the specified {@link ImageDescriptor}.
 	 */
 	public static Image getImage(ImageDescriptor descriptor) {
-		if (descriptor == null) {
+		if (descriptor == null)
 			return null;
-		}
+		return descriptorImageMap.computeIfAbsent(descriptor, ImageDescriptor::createImage);
-		Image image = m_descriptorImageMap.get(descriptor);
-		if (image == null) {
-			image = descriptor.createImage();
-			m_descriptorImageMap.put(descriptor, image);
-		}
-		return image;
 	}
 
 	/**
 	 * Maps images to decorated images.
 	 */
 	@SuppressWarnings("unchecked")
-	private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
+	private static Map<Image, Map<Image, Image>>[] decoratedImageMap = new Map[LAST_CORNER_KEY];
 
 	/**
 	 * Returns an {@link Image} composed of a base image decorated by another image.
@@ -140,17 +132,12 @@ public class ResourceManager extends SWTResourceManager {
 		if (corner <= 0 || corner >= LAST_CORNER_KEY) {
 			throw new IllegalArgumentException(Messages.ResourceManager_0);
 		}
-		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
+		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[corner];
 		if (cornerDecoratedImageMap == null) {
-			cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
+			cornerDecoratedImageMap = new HashMap<>();
-			m_decoratedImageMap[corner] = cornerDecoratedImageMap;
+			decoratedImageMap[corner] = cornerDecoratedImageMap;
 		}
-		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
+		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.computeIfAbsent(baseImage, k -> new HashMap<Image, Image>());
-		if (decoratedMap == null) {
-			decoratedMap = new HashMap<Image, Image>();
-			cornerDecoratedImageMap.put(baseImage, decoratedMap);
-		}
-		//
 		Image result = decoratedMap.get(decorator);
 		if (result == null) {
 			final Rectangle bib = baseImage.getBounds();
@@ -193,15 +180,13 @@ public class ResourceManager extends SWTResourceManager {
 	public static void disposeImages() {
 		SWTResourceManager.disposeImages();
 		// dispose ImageDescriptor images
-		{
+		for (Iterator<Image> I = descriptorImageMap.values().iterator(); I.hasNext();) {
-			for (Iterator<Image> I = m_descriptorImageMap.values().iterator(); I.hasNext();) {
 			I.next().dispose();
 		}
-			m_descriptorImageMap.clear();
+		descriptorImageMap.clear();
-		}
 		// dispose decorated images
-		for (int i = 0; i < m_decoratedImageMap.length; i++) {
+		for (int i = 0; i < decoratedImageMap.length; i++) {
-			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
+			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[i];
 			if (cornerDecoratedImageMap != null) {
 				for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
 					for (Image image : decoratedMap.values()) {
@@ -213,12 +198,10 @@ public class ResourceManager extends SWTResourceManager {
 			}
 		}
 		// dispose plugin images
-		{
+		for (Iterator<Image> I = urlImageMap.values().iterator(); I.hasNext();) {
-			for (Iterator<Image> I = m_URLImageMap.values().iterator(); I.hasNext();) {
 			I.next().dispose();
 		}
-			m_URLImageMap.clear();
+		urlImageMap.clear();
-		}
 	}
 
 	////////////////////////////////////////////////////////////////////////////
@@ -229,7 +212,7 @@ public class ResourceManager extends SWTResourceManager {
 	/**
 	 * Maps URL to images.
 	 */
-	private static Map<String, Image> m_URLImageMap = new HashMap<String, Image>();
+	private static Map<String, Image> urlImageMap = new HashMap<>();
 
 	/**
 	 * Provider for plugin resources, used by WindowBuilder at design time.
@@ -242,29 +225,7 @@ public class ResourceManager extends SWTResourceManager {
 	 * Instance of {@link PluginResourceProvider}, used by WindowBuilder at design
 	 * time.
 	 */
-	private static PluginResourceProvider m_designTimePluginResourceProvider = null;
+	private static PluginResourceProvider designTimePluginResourceProvider = null;
-
-	/**
-	 * Returns an {@link Image} based on a plugin and file path.
-	 * 
-	 * @param plugin the plugin {@link Object} containing the image
-	 * @param name   the path to the image within the plugin
-	 * @return the {@link Image} stored in the file at the specified path
-	 * 
-	 * @deprecated Use {@link #getPluginImage(String, String)} instead.
-	 */
-	@Deprecated
-	public static Image getPluginImage(Object plugin, String name) {
-		try {
-			URL url = getPluginImageURL(plugin, name);
-			if (url != null) {
-				return getPluginImageFromUrl(url);
-			}
-		} catch (Throwable e) {
-			// Ignore any exceptions
-		}
-		return null;
-	}
 
 	/**
 	 * Returns an {@link Image} based on a {@link Bundle} and resource entry path.
@@ -279,7 +240,7 @@ public class ResourceManager extends SWTResourceManager {
 			if (url != null) {
 				return getPluginImageFromUrl(url);
 			}
-		} catch (Throwable e) {
+		} catch (Exception e) {
 			// Ignore any exceptions
 		}
 		return null;
@@ -289,48 +250,20 @@ public class ResourceManager extends SWTResourceManager {
 	 * Returns an {@link Image} based on given {@link URL}.
 	 */
 	private static Image getPluginImageFromUrl(URL url) {
-		try {
 		try {
 			String key = url.toExternalForm();
-				Image image = m_URLImageMap.get(key);
+			Image image = urlImageMap.get(key);
 			if (image == null) {
 				InputStream stream = url.openStream();
 				try {
 					image = getImage(stream);
-						m_URLImageMap.put(key, image);
+					urlImageMap.put(key, image);
 				} finally {
 					stream.close();
 				}
 			}
 			return image;
-			} catch (Throwable e) {
+		} catch (Exception e) {
-				// Ignore any exceptions
-			}
-		} catch (Throwable e) {
-			// Ignore any exceptions
-		}
-		return null;
-	}
-
-	/**
-	 * Returns an {@link ImageDescriptor} based on a plugin and file path.
-	 * 
-	 * @param plugin the plugin {@link Object} containing the image.
-	 * @param name   the path to th eimage within the plugin.
-	 * @return the {@link ImageDescriptor} stored in the file at the specified path.
-	 * 
-	 * @deprecated Use {@link #getPluginImageDescriptor(String, String)} instead.
-	 */
-	@Deprecated
-	public static ImageDescriptor getPluginImageDescriptor(Object plugin, String name) {
-		try {
-			try {
-				URL url = getPluginImageURL(plugin, name);
-				return ImageDescriptor.createFromURL(url);
-			} catch (Throwable e) {
-				// Ignore any exceptions
-			}
-		} catch (Throwable e) {
 			// Ignore any exceptions
 		}
 		return null;
@@ -351,7 +284,7 @@ public class ResourceManager extends SWTResourceManager {
 			if (url != null) {
 				return ImageDescriptor.createFromURL(url);
 			}
-		} catch (Throwable e) {
+		} catch (Exception e) {
 			// Ignore any exceptions
 		}
 		return null;
@@ -362,66 +295,18 @@ public class ResourceManager extends SWTResourceManager {
 	 */
 	private static URL getPluginImageURL(String symbolicName, String path) {
 		// try runtime plugins
-		{
 		Bundle bundle = Platform.getBundle(symbolicName);
 		if (bundle != null) {
 			return bundle.getEntry(path);
 		}
-		}
 		// try design time provider
-		if (m_designTimePluginResourceProvider != null) {
+		if (designTimePluginResourceProvider != null) {
-			return m_designTimePluginResourceProvider.getEntry(symbolicName, path);
+			return designTimePluginResourceProvider.getEntry(symbolicName, path);
 		}
 		// no such resource
 		return null;
 	}
 
-	/**
-	 * Returns an {@link URL} based on a plugin and file path.
-	 * 
-	 * @param plugin the plugin {@link Object} containing the file path.
-	 * @param name   the file path.
-	 * @return the {@link URL} representing the file at the specified path.
-	 * @throws Exception
-	 */
-	private static URL getPluginImageURL(Object plugin, String name) throws Exception {
-		// try to work with 'plugin' as with OSGI BundleContext
-		try {
-			Class<?> BundleClass = Class.forName("org.osgi.framework.Bundle"); //$NON-NLS-1$
-			Class<?> BundleContextClass = Class.forName("org.osgi.framework.BundleContext"); //$NON-NLS-1$
-			if (BundleContextClass.isAssignableFrom(plugin.getClass())) {
-				Method getBundleMethod = BundleContextClass.getMethod("getBundle", new Class[0]); //$NON-NLS-1$
-				Object bundle = getBundleMethod.invoke(plugin, new Object[0]);
-				//
-				Class<?> PathClass = Class.forName("org.eclipse.core.runtime.Path"); //$NON-NLS-1$
-				Constructor<?> pathConstructor = PathClass.getConstructor(new Class[] { String.class });
-				Object path = pathConstructor.newInstance(new Object[] { name });
-				//
-				Class<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
-				Class<?> PlatformClass = Class.forName("org.eclipse.core.runtime.Platform"); //$NON-NLS-1$
-				Method findMethod = PlatformClass.getMethod("find", new Class[] { BundleClass, IPathClass }); //$NON-NLS-1$
-				return (URL) findMethod.invoke(null, new Object[] { bundle, path });
-			}
-		} catch (Throwable e) {
-			// Ignore any exceptions
-		}
-		// else work with 'plugin' as with usual Eclipse plugin
-		{
-			Class<?> PluginClass = Class.forName("org.eclipse.core.runtime.Plugin"); //$NON-NLS-1$
-			if (PluginClass.isAssignableFrom(plugin.getClass())) {
-				//
-				Class<?> PathClass = Class.forName("org.eclipse.core.runtime.Path"); //$NON-NLS-1$
-				Constructor<?> pathConstructor = PathClass.getConstructor(new Class[] { String.class });
-				Object path = pathConstructor.newInstance(new Object[] { name });
-				//
-				Class<?> IPathClass = Class.forName("org.eclipse.core.runtime.IPath"); //$NON-NLS-1$
-				Method findMethod = PluginClass.getMethod("find", new Class[] { IPathClass }); //$NON-NLS-1$
-				return (URL) findMethod.invoke(plugin, new Object[] { path });
-			}
-		}
-		return null;
-	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// General

tests/com.minres.scviewer.database.test/DatabaseServicesTest.launch

@@ -34,7 +34,7 @@
     <stringAttribute key="org.eclipse.jdt.launching.PROGRAM_ARGUMENTS" value="-os ${target.os} -ws ${target.ws} -arch ${target.arch} -nl ${target.nl} -consoleLog"/>
     <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="com.minres.scviewer.database.test"/>
     <stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.pde.ui.workbenchClasspathProvider"/>
-    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xms40m -Xmx512m"/>
+    <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Xms40m -Xmx2G"/>
     <stringAttribute key="pde.version" value="3.3"/>
     <stringAttribute key="product" value="com.minres.scviewer.e4.product"/>
     <booleanAttribute key="run_in_ui_thread" value="true"/>

tests/com.minres.scviewer.database.test/src/com/minres/scviewer/database/test/DatabaseServicesTest.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2015 MINRES Technologies GmbH and others.
+ * Copyright (c) 2015-2021 MINRES Technologies GmbH and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -71,10 +71,10 @@ public class DatabaseServicesTest {
 		assertEquals(2,  waveformDb.getChildNodes().size());
 		IWaveform bus_data_wave = waves.get(0);
 		Entry<Long, IEvent[]> bus_data_entry = bus_data_wave.getEvents().floorEntry(1400000000L);
-		assertTrue("01111000".equals(bus_data_entry.getValue()[0].toString()));
+		assertEquals("01111000", bus_data_entry.getValue()[0].toString());
 		IWaveform rw_wave = waves.get(2);
 		Entry<Long, IEvent[]> rw_entry = rw_wave.getEvents().floorEntry(2360000000L);
-		assertTrue("1".equals(rw_entry.getValue()[0].toString()));
+		assertEquals("1", rw_entry.getValue()[0].toString());
 	}
 
 	@Test
@@ -107,6 +107,16 @@ public class DatabaseServicesTest {
 		}
 	}
 
+	@Test
+	public void testTxTextLargeFile() throws Exception {
+		File f = new File("inputs/hw_cfg7.txlog").getAbsoluteFile();
+		assertTrue(f.exists());
+		waveformDb.load(f);
+		assertNotNull(waveformDb);
+		// hw_cfg_2_gen.txlog: 7.5s (2G)
+		// hw_cfg7.txlog: 48s(2G)
+	}
+
 	@Test
 	public void testTxTextTruncated() throws Exception {
 		File f = new File("inputs/my_db_truncated.txlog").getAbsoluteFile();