fix layout for auto-hiding scrollbar (e.g. GTK)

If no modifier key is used the zoombar acts as a scroll bar. If ctrl is
used it modifies the zoom level, shift is a speed modifier

.launch/Build and deploy SCViewer.launch

@@ -12,7 +12,8 @@
     <booleanAttribute key="M2_UPDATE_SNAPSHOTS" value="false"/>
     <stringAttribute key="M2_USER_SETTINGS" value=""/>
     <booleanAttribute key="M2_WORKSPACE_RESOLUTION" value="true"/>
+    <booleanAttribute key="org.eclipse.jdt.launching.ATTR_ATTR_USE_ARGFILE" value="false"/>
+    <booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_CLASSPATH_ONLY_JAR" value="false"/>
     <booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_START_ON_FIRST_THREAD" value="true"/>
-    <stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.launching.macosx.MacOSXType/AdoptOpenJDK 8 [1.8.0_232]"/>
     <stringAttribute key="org.eclipse.jdt.launching.WORKING_DIRECTORY" value="${project_loc:com.minres.scviewer.parent}"/>
 </launchConfiguration>

README.md

@@ -18,14 +18,55 @@ The viewer has the following features
  - sqlite based 
  - visualization of transaction relations
 
-To build the plugins the Eclipse SDK or PDE can be used. In both cases the Groovy
-eclipse plugin (http://groovy.codehaus.org/Eclipse+Plugin or Market) has to be
-installed.
+To build the plugins the Eclipse SDK or PDE can be used.
+
+Key Shortcuts
+=============
+
+Legend:
+
+* Left Mouse Button: LMB
+* Middle Mouse Button: MMB
+* Mouse Scroll wheel: MScrl
+* Context any means Name List, Value List or Waveform
+
+| Input      | Modifier | Context  | Action                            |
+|------------|----------|----------|-----------------------------------|
+| LMB click  |          | any      | select                            |
+| LMB click  | Shift    | Waveform | move selected marker to position  |
+| LMB click  | Control  | Waveform | move cursor to position           |
+| LMB drag   |          | Waveform | zoom to range                     |
+| MMB click  |          | Waveform | move selected marker to position  |
+| MScrl      |          | any      | scroll window up/down             |
+| MScrl      | Shift    | any      | scroll window left/right          |
+| MScrl      | Control  | Waveform | zoom in/out                       |
+| Key left   |          | Waveform | scroll window to the left (slow)  |
+| Key right  |          | Waveform | scroll window to the right (slow) |
+| Key left   | Shift    | Waveform | scroll window to the left (fast)  |
+| Key right  | Shift    | Waveform | scroll window to the right (fast) |
+| Key up     |          | Waveform | move selection up                 |
+| Key down   |          | Waveform | move selection down               |
+| Key up     | Control  | Waveform | move selected track up            |
+| Key down   | Control  | Waveform | move selected track down          |
+| Key +      | Control  | Waveform | zoom in                           |
+| Key -      | Control  | Waveform | zoom out                          |
+| Key Pos1   |          | Waveform | jump to selected marker           |
+| Key End    |          | Waveform | jump to cursor                    |
+| Key Del    |          | any      | delete selected entries           |
+| LMB click  |          | ZoomBar  | increment/decrement 1 page        |
+| LMB drag   |          | ZoomBar  | drag both markers (pan)           |
+| LMB drag   | Control  | ZoomBar  | drag one marker (zoom)            |
+| MMB drag   |          | ZoomBar  | drag one marker (zoom)            |
+| xMB dclick |          | ZoomBar  | pan to position                   |
+| MScrl      |          | ZoomBar  | scroll window left/right          |
+| MScrl      | Shift    | ZoomBar  | scroll window left/right double speed |
+| MScrl      | Control  | ZoomBar  | zoom in/out                       |
+| Key left   |          | ZoomBar  | scroll window to the left (slow)  |
+| Key right  |          | ZoomBar  | scroll window to the right (slow) |
+| Key up     |          | ZoomBar  | scroll window to the left (slow)  |
+| Key down   |          | ZoomBar  | scroll window to the right (slow) |
+| Key PgUp   |          | ZoomBar  | scroll window to the left (fast)  |
+| Key PgDown |          | ZoomBar  | scroll window to the right (fast) |
+| Key Pos1   |          | ZoomBar  | scroll to begin                   |
+| Key End    |          | ZoomBar  | scroll to end                     |
 
-TODO
-====
-- add more tests
-- move to feature based product to allow automatic updates
-- improve graphics
-- catch-up e3 plugin to functionality of e4 product
-- add calculated traces

features/com.minres.scviewer.database.feature/feature.xml

@@ -27,12 +27,12 @@ http://www.eclipse.org/legal/epl-v10.html
    </url>
 
    <requires>
-      <import plugin="org.codehaus.groovy" version="2.5.8" match="greaterOrEqual"/>
       <import plugin="org.eclipse.osgi.services" version="3.4.0" match="greaterOrEqual"/>
       <import plugin="com.google.guava" version="15.0.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.osgi"/>
       <import plugin="com.minres.scviewer.database" version="1.0.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.core.runtime"/>
+      <import feature="org.eclipse.collections.feature" version="10.4.0.v20200820-2049"/>
    </requires>
 
    <plugin

features/com.minres.scviewer.database.feature/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>3.0.0-SNAPSHOT</version>

features/com.minres.scviewer.e4.feature/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.1.0-SNAPSHOT</version>

features/com.minres.scviewer.e4.platform.feature/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.0.0-SNAPSHOT</version>

features/com.minres.scviewer.feature/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.1.0-SNAPSHOT</version>

features/com.minres.scviewer.ui.feature/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.1.0-SNAPSHOT</version>

plugins/com.minres.scviewer.database.sqlite/pom.xml

@@ -4,7 +4,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <packaging>eclipse-plugin</packaging>

plugins/com.minres.scviewer.database.text/.classpath

@@ -2,12 +2,12 @@
 <classpath>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src/"/>
 	<classpathentry exported="true" kind="lib" path="lib/mapdb-3.0.7.jar" sourcepath="lib/mapdb-3.0.7-sources.jar">
 		<attributes>
 			<attribute name="javadoc_location" value="jar:platform:/resource/com.minres.scviewer.database.text/lib/mapdb-3.0.7-javadoc.jar!/"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="src" path="src"/>
 	<classpathentry exported="true" kind="lib" path="lib/kotlin-stdlib-1.2.42.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/lz4-1.3.0.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/elsa-3.0.0-M5.jar"/>

plugins/com.minres.scviewer.database.text/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Textual transaction database
 Bundle-SymbolicName: com.minres.scviewer.database.text
-Bundle-Version: 4.0.0.qualifier
+Bundle-Version: 4.0.1.qualifier
 Bundle-Vendor: MINRES Technologies GmbH
 Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: org.osgi.framework;version="1.3.0"

plugins/com.minres.scviewer.database.text/OSGI-INF/component.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="TextDbLoader">
-   <implementation class="com.minres.scviewer.database.text.TextDbLoader"/>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="TextDbLoaderFactory">
+   <implementation class="com.minres.scviewer.database.text.TextDbLoaderFactory"/>
    <service>
-      <provide interface="com.minres.scviewer.database.IWaveformDbLoader"/>
+      <provide interface="com.minres.scviewer.database.IWaveformDbLoaderFactory"/>
    </service>
 </scr:component>

plugins/com.minres.scviewer.database.text/pom.xml

@@ -2,11 +2,11 @@
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>com.minres.scviewer.database.text</artifactId>
-	<version>4.0.0-SNAPSHOT</version>
+	<version>4.0.1-SNAPSHOT</version>
 	<parent>
 		<groupId>com.minres.scviewer</groupId>
 		<artifactId>com.minres.scviewer.parent</artifactId>
-		<version>2.13.0</version>
+		<version>2.15.1</version>
 		<relativePath>../..</relativePath>
 	</parent>
 	<packaging>eclipse-plugin</packaging>

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

@@ -345,10 +345,10 @@ public class TextDbLoader implements IWaveformDbLoader {
 			String curLine = reader.readLine();
 			String nextLine = null;
 			while ((nextLine = reader.readLine()) != null && curLine != null) {
-				curLine = parseLine(curLine, nextLine);
+				curLine = parseLine(curLine, nextLine, false);
 			}
 			if (curLine != null)
-				parseLine(curLine, nextLine);
+				parseLine(curLine, nextLine, true);
 			for(Entry<Long, ScvTx> e: transactionById.entrySet()) {
 				ScvTx scvTx = e.getValue();
 				scvTx.endTime=loader.maxTime;
@@ -385,16 +385,16 @@ public class TextDbLoader implements IWaveformDbLoader {
 		 * @throws IOException Signals that an I/O exception has occurred.
 		 * @throws InputFormatException Signals that the input format is wrong
 		 */
-		private String parseLine(String curLine, String nextLine) throws IOException, InputFormatException {
+		private String parseLine(String curLine, String nextLine, boolean last) throws IOException, InputFormatException {
 			String[] tokens = curLine.split("\\s+");
-			if ("tx_record_attribute".equals(tokens[0])) {
+			if ("tx_record_attribute".equals(tokens[0]) && tokens.length>4) {
 				Long id = Long.parseLong(tokens[1]);
 				String name = tokens[2].substring(1, tokens[2].length()-1);
 				DataType type = DataType.valueOf(tokens[3]);
 				String remaining = tokens.length > 5 ? String.join(" ", Arrays.copyOfRange(tokens, 5, tokens.length)) : "";
 				TxAttributeType attrType = getAttrType(name, type, AssociationType.RECORD);
 				transactionById.get(id).attributes.add(new TxAttribute(attrType, getAttrString(attrType, remaining)));
-			} else if ("tx_begin".equals(tokens[0])) {
+			} else if ("tx_begin".equals(tokens[0]) && tokens.length>4) {
 				Long id = Long.parseLong(tokens[1]);
 				Long genId = Long.parseLong(tokens[2]);
 				TxGenerator gen = loader.txGenerators.get(genId);
@@ -413,7 +413,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 					}
 				}
 				transactionById.put(id, scvTx);
-			} else if ("tx_end".equals(tokens[0])) {
+			} else if ("tx_end".equals(tokens[0]) && tokens.length>4) {
 				Long id = Long.parseLong(tokens[1]);
 				ScvTx scvTx = transactionById.get(id);
 				assert Long.parseLong(tokens[2]) == scvTx.generatorId;
@@ -443,7 +443,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 				}
 				txSink.put(scvTx.getId(), scvTx);
 				transactionById.remove(id);
-			} else if ("tx_relation".equals(tokens[0])) {
+			} else if ("tx_relation".equals(tokens[0]) && tokens.length>3) {
 				Long tr2 = Long.parseLong(tokens[2]);
 				Long tr1 = Long.parseLong(tokens[3]);
 				String relType = tokens[1].substring(1, tokens[1].length() - 1);
@@ -483,7 +483,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 				}
 			} else if (")".equals(tokens[0])) {
 				generator = null;
-			} else
+			} else if(!last)			
 				throw new InputFormatException("Don't know what to do with: '" + curLine + "'");
 			return nextLine;
 		}

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

@@ -0,0 +1,77 @@
+/*******************************************************************************
+ * Copyright (c) 2012 IT Just working.
+ * Copyright (c) 2020 MINRES Technologies GmbH
+ * 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IT Just working - initial API and implementation
+ *******************************************************************************/
+package com.minres.scviewer.database.text;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.zip.GZIPInputStream;
+
+import com.minres.scviewer.database.IWaveformDbLoader;
+import com.minres.scviewer.database.IWaveformDbLoaderFactory;
+
+/**
+ * The Class TextDbLoader.
+ */
+public class TextDbLoaderFactory implements IWaveformDbLoaderFactory {
+
+	/** The Constant x. */
+	static final byte[] x = "scv_tr_stream".getBytes();
+
+	/**
+	 * Checks if f is gzipped.
+	 *
+	 * @param f the f
+	 * @return true, if is gzipped
+	 */
+	private static boolean isGzipped(File f) {
+		try (InputStream is = new FileInputStream(f)) {
+			byte[] signature = new byte[2];
+			int nread = is.read(signature); // read the gzip signature
+			return nread == 2 && signature[0] == (byte) 0x1f && signature[1] == (byte) 0x8b;
+		} catch (IOException e) {
+			return false;
+		}
+	}
+
+	/**
+	 * 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;
+	}
+
+	@Override
+	public IWaveformDbLoader getLoader() {
+		return new TextDbLoader();
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>4.0.0-SNAPSHOT</version>

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/IWaveformView.java

@@ -27,9 +27,13 @@ import com.minres.scviewer.database.tx.ITx;
 
 public interface IWaveformView extends PropertyChangeListener, ISelectionProvider{
 
-	String CURSOR_PROPERTY = "cursor_time";
+	static final String CURSOR_PROPERTY = "cursor_time";
 	
-	String MARKER_PROPERTY = "marker_time";
+	static final String MARKER_PROPERTY = "marker_time";
+	
+	static final int CURSOR_POS = 0;
+	
+	static final int MARKER_POS = 1;
 
 	public static final RelationType NEXT_PREV_IN_STREAM = RelationTypeFactory.create("Prev/Next in stream"); 
 
@@ -75,23 +79,17 @@ public interface IWaveformView extends PropertyChangeListener, ISelectionProvide
 	
     public void setHighliteRelation(RelationType relationType);
 
-	public long getMaxTime();
-
 	public void setMaxTime(long maxTime);
 
-	public void setZoomLevel(int scale);
-
-	public int getZoomLevel();
-
 	public void setCursorTime(long time);
 
-	public void setMarkerTime(long time, int index);
+	public void setMarkerTime(int marker, long time);
 
 	public long getCursorTime();
 
-	public int getSelectedMarkerId();
+	public int getSelectedMarker();
 
-	public long getMarkerTime(int index);
+	public long getMarkerTime(int marker);
 
 	public void addPropertyChangeListener(PropertyChangeListener listener);
 
@@ -101,21 +99,18 @@ public interface IWaveformView extends PropertyChangeListener, ISelectionProvide
 
 	public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener);
 
-	public String getScaledTime(long time);
-
-	public String[] getZoomLevels();
-
 	public List<ICursor> getCursorList();
 
-	public long getBaselineTime();
-
-	public void setBaselineTime(Long scale);
-	
 	public void scrollHorizontal(int percent);
 	
+	public void scrollTo(int pos);
+	
 	public void addDisposeListener( DisposeListener listener );
 
 	public void deleteSelectedTracks();
 
 	public TrackEntry addWaveform(IWaveform waveform, int pos);
+
+	public IWaveformZoom getWaveformZoom();
+	
 }

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/IWaveformZoom.java

@@ -0,0 +1,24 @@
+package com.minres.scviewer.database.ui;
+
+public interface IWaveformZoom {
+	
+	long getMaxVisibleTime();
+
+	long getMinVisibleTime();
+
+	void setMinVisibleTime(long scale);
+
+	long getMaxTime();
+
+	long getScale();
+
+	void setScale(long factor);
+
+	void setVisibleRange(long startTime, long endTime);
+	
+	void centerAt(long time);
+	
+	void zoom(ZoomKind kind);
+
+	String timeToString(long time);
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/ZoomKind.java

@@ -0,0 +1,3 @@
+package com.minres.scviewer.database.ui;
+
+public enum ZoomKind {IN, OUT, FIT, FULL}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/Constants.java

@@ -1,14 +1,49 @@
 package com.minres.scviewer.database.ui.swt;
 
+import java.text.DecimalFormat;
+
 public class Constants {
 
-	public static final String[] UNIT_STRING={"fs", "ps", "ns", "us", "ms"};//, "s"};
+	public static final String[] UNIT_STRING={"fs", "ps", "ns", "us", "ms", "s"};
+	public static final long[]   UNIT_MULTIPLIER={1l, 1000l, 1000l*1000, 1000l*1000*1000, 1000l*1000*1000*1000, 1000l*1000*1000*1000*1000 };
 
-    public static final int[] UNIT_MULTIPLIER={1, 3, 10, 30, 100, 300};
+    //public static final int[] UNIT_MULTIPLIER={1, 3, 10, 30, 100, 300};
+    public static final long[] SCALE_MULTIPLIER={1, 2, 5, 10, 20, 50, 100, 200, 500};
 
 	public static final String CONTENT_PROVIDER_TAG = "TOOLTIP_CONTENT_PROVIDER";
 	public static final String HELP_PROVIDER_TAG = "TOOLTIP_HELP_PROVIDER";
 	
+	public static final DecimalFormat TIME_FORMAT_FS  = new DecimalFormat("#"); 
+	public static final DecimalFormat TIME_FORMAT_PS  = new DecimalFormat("#"); 
+	public static final DecimalFormat TIME_FORMAT_NS  = new DecimalFormat("#.0##"); 
+	public static final DecimalFormat TIME_FORMAT_UMS = new DecimalFormat("#.0#####"); 
+	public static final long[] POWERS_OF_TEN = {
+			1L,
+			10L,
+			100L,
+			1_000L,
+			10_000L,
+			100_000L,
+			1_000_000L,
+			10_000_000L,
+			100_000_000L,
+			1_000_000_000L,
+			10_000_000_000L,
+			100_000_000_000L,
+			1_000_000_000_000L,
+			10_000_000_000_000L,
+			100_000_000_000_000L,
+			1_000_000_000_000_000L};
+
+	public static  DecimalFormat getTimeFormatForLevel(int idx) {
+		switch(idx) {
+		case 0:	return TIME_FORMAT_FS;
+		case 1:	return TIME_FORMAT_PS;
+		case 2:	return TIME_FORMAT_NS;
+		default:
+			return TIME_FORMAT_UMS;
+		}
+	}
 	private Constants() {}
 
 }

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/DatabaseUiPlugin.java

@@ -13,6 +13,7 @@ package com.minres.scviewer.database.ui.swt;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Plugin;
 import org.eclipse.core.runtime.Status;
+import org.eclipse.wb.swt.SWTResourceManager;
 import org.osgi.framework.BundleContext;
 
 public class DatabaseUiPlugin extends Plugin {
@@ -24,6 +25,7 @@ public class DatabaseUiPlugin extends Plugin {
 
 	@Override
 	public void stop(BundleContext context) throws Exception {
+		SWTResourceManager.dispose();
 		getLog().log(new Status(IStatus.OK, "org.eclipse.e4.core", "Stopping org.eclipse.e4.core bundle..."));
 	}
 }

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

@@ -24,7 +24,6 @@ import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Display;
 
 import com.minres.scviewer.database.IEvent;
-import com.minres.scviewer.database.IHierNode;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.RelationType;
 import com.minres.scviewer.database.tx.ITx;
@@ -76,7 +75,7 @@ public class ArrowPainter implements IPainter {
 		this.tx = newTx;
 		iRect = new LinkedList<>();
 		oRect = new LinkedList<>();
-		scaleFactor = waveCanvas.getScaleFactor();
+		scaleFactor = waveCanvas.getScale();
 		if (tx != null) {
 			calculateGeometries();
 		}
@@ -110,46 +109,21 @@ public class ArrowPainter implements IPainter {
 	protected void deriveGeom(Collection<ITxRelation> relations, List<LinkEntry> res, boolean useTarget) {
 		for (ITxRelation iTxRelation : relations) {
 			ITx otherTx = useTarget ? iTxRelation.getTarget() : iTxRelation.getSource();
-			Rectangle bb = createLinkEntry(otherTx, otherTx.getStream());
-			if(bb!=null){
-				res.add(new LinkEntry(bb, iTxRelation.getRelationType()));
-				return;
-			} else {
-				for(IHierNode gen:otherTx.getStream().getChildNodes()) {
-					if(gen instanceof IWaveform) {
-						bb = createLinkEntry(otherTx, (IWaveform) gen);
-						if(bb!=null){
-							res.add(new LinkEntry(bb, iTxRelation.getRelationType()));
-							return;
-						}
-					}
-				}
-			}
-		}
-	}
-
-	private Rectangle createLinkEntry(ITx otherTx, IWaveform iWaveform) {
+			for(IWaveform iWaveform: new IWaveform[]{otherTx.getStream(), otherTx.getGenerator()}) {
 				if (waveCanvas.wave2painterMap.containsKey(iWaveform)) {
-			IWaveformPainter painter = waveCanvas.wave2painterMap.get(otherTx.getStream());
-			if(painter==null) {
-				for(IHierNode gen:otherTx.getStream().getChildNodes()) {
-					if(gen instanceof IWaveform) {
-						 painter = waveCanvas.wave2painterMap.get(gen);
-						 if(painter!=null)
-							 break;
-					}
-				}
-			}
+					IWaveformPainter painter = waveCanvas.wave2painterMap.get(iWaveform);
 					if(painter!=null) {
 						int height = waveCanvas.styleProvider.getTrackHeight();
-				return new Rectangle(
+						Rectangle bb = new Rectangle(
 								(int) (otherTx.getBeginTime() / scaleFactor),
 								waveCanvas.rulerHeight + painter.getVerticalOffset() + height * getConcurrencyIndex(otherTx),
 								(int) ((otherTx.getEndTime() - otherTx.getBeginTime()) / scaleFactor),
 								height);
+						res.add(new LinkEntry(bb, iTxRelation.getRelationType()));				
+					}
+				}
 			}
 		}
-		return null;
 	}
 
 	@Override
@@ -159,7 +133,7 @@ public class ArrowPainter implements IPainter {
 		Color highliteColor = waveCanvas.styleProvider.getColor(WaveformColors.REL_ARROW_HIGHLITE);
 
 		if(tx==null) return;
-		scaleFactor = waveCanvas.getScaleFactor();
+		scaleFactor = waveCanvas.getScale();
 		if(calculateGeometries())
 			return;
 		int correctionValue = (int)(selectionOffset);

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

@@ -65,7 +65,7 @@ public class CursorPainter implements IPainter, ICursor {
 		Rectangle area = proj.unProject(clientRect);
 		if(!waveCanvas.painterList.isEmpty()){
 			
-			long scaleFactor=waveCanvas.getScaleFactor();
+			long scaleFactor=waveCanvas.getScale();
 			long beginPos = area.x;
 			
 			maxPosX = area.x + area.width;
@@ -83,8 +83,7 @@ public class CursorPainter implements IPainter, ICursor {
 				proj.drawLine(x, top, x, area.y+area.height);
 				proj.setBackground(drawColor);
 				proj.setForeground(textColor);
-				double dTime=time;
-				proj.drawText((dTime/waveCanvas.getScaleFactorPow10())+waveCanvas.getUnitStr(), x+1, top);
+				proj.drawText(waveCanvas.timeToString(time), x+1, top);
 			}
 		}
 	}	

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

@@ -10,22 +10,21 @@
  *******************************************************************************/
 package com.minres.scviewer.database.ui.swt.internal;
 
-import java.text.DecimalFormat;
-
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.wb.swt.SWTResourceManager;
 
+import com.minres.scviewer.database.ui.swt.Constants;
+
 public class RulerPainter implements IPainter {
     protected final WaveformCanvas waveCanvas;
     
     static final int RULER_TICK_MINOR = 10;
     static final int RULER_TICK_MAJOR = 100;
        
-	static final DecimalFormat df = new DecimalFormat("#.00####"); 
-
     public RulerPainter(WaveformCanvas waveCanvas) {
         this.waveCanvas=waveCanvas;
     }
@@ -39,26 +38,26 @@ public class RulerPainter implements IPainter {
     	Color headerBgColor = waveCanvas.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND);
     	if(headerBgColor.isDisposed())
     		headerBgColor=SWTResourceManager.getColor(255,255,255);
-        String unit=waveCanvas.getUnitStr();
-        int unitMultiplier=waveCanvas.getUnitMultiplier();
-        long scaleFactor=waveCanvas.getScaleFactor();
     	
-        long startPos=area.x*scaleFactor; 
-        long startVal=startPos - proj.getTranslation().x*scaleFactor;
-        long endPos=startPos+area.width*scaleFactor;
-
-        long rulerTickMinor = RULER_TICK_MINOR*scaleFactor;
-        long rulerTickMajor = RULER_TICK_MAJOR*scaleFactor;
+        long scaleFactor=waveCanvas.getScale();
+        long startTime=waveCanvas.getMinVisibleTime(); 
+        long endTime=waveCanvas.getMaxVisibleTime();
 
+        long multiplier = Constants.POWERS_OF_TEN[waveCanvas.getScaleMagnitude()];
+        long rulerTickMinor = RULER_TICK_MINOR*multiplier;
+        long rulerTickMajor = RULER_TICK_MAJOR*multiplier;
+        if((endTime-startTime)/rulerTickMinor>area.width/5) {
+        	rulerTickMinor*=10;
+        	rulerTickMajor*=10;
+        }
         int minorTickY = waveCanvas.rulerHeight-5;
         int majorTickY = waveCanvas.rulerHeight-15;
-        int textY=waveCanvas.rulerHeight-20;
+        int textY=waveCanvas.rulerHeight-30;
         int baselineY=waveCanvas.rulerHeight - 1;
         int bottom=waveCanvas.rulerHeight - 2;
 
-        long modulo = startVal % rulerTickMinor;
-        long startMinorIncrPos = startPos+rulerTickMinor-modulo;
-        long startMinorIncrVal = startVal+rulerTickMinor-modulo;
+        long startTickTime = startTime+rulerTickMinor-(startTime % rulerTickMinor);
+        long majorTickDist = rulerTickMajor/scaleFactor;
         
         gc.setBackground(waveCanvas.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
         gc.fillRectangle(new Rectangle(area.x, area.y, area.width, waveCanvas.rulerHeight));
@@ -66,13 +65,22 @@ public class RulerPainter implements IPainter {
         gc.fillRectangle(new Rectangle(area.x, area.y, area.width, baselineY));
         gc.setForeground(headerFgColor);
         gc.drawLine(area.x, area.y+bottom, area.x+area.width, area.y+bottom);
-        
-        for (long pos = startMinorIncrPos, tick = startMinorIncrVal; pos < endPos; pos+= rulerTickMinor, tick += rulerTickMinor) {
-            int x0Pos = (int) (pos/scaleFactor);
-            long x0Val = tick/scaleFactor;
-            if ((tick % rulerTickMajor) == 0) {
-                gc.drawText(df.format(x0Val*unitMultiplier)+unit, x0Pos, area.y+textY);
+        int maxTextLength=0;
+        for (long tickTime = startTickTime; tickTime < endTime; tickTime+= rulerTickMinor) {
+            if ((tickTime % rulerTickMajor) == 0) {
+            	Point textSize = gc.textExtent(waveCanvas.timeToString(tickTime));
+            	maxTextLength=textSize.x>maxTextLength?textSize.x:maxTextLength;
+            }
+        }
+        boolean drawEvery = majorTickDist>maxTextLength;
+        boolean drawText=true;
+        for (long tickTime = startTickTime; tickTime < endTime; tickTime+= rulerTickMinor) {
+            int x0Pos = (int) (tickTime/scaleFactor) + proj.getTranslation().x;
+            if ((tickTime % rulerTickMajor) == 0) {
+            	if(drawEvery ||  drawText)
+            		gc.drawText(waveCanvas.timeToString(tickTime), x0Pos, area.y+textY);
                 gc.drawLine(x0Pos, area.y+majorTickY, x0Pos,area.y+ bottom);
+                drawText=!drawText;
             } else {
                 gc.drawLine(x0Pos, area.y+minorTickY, x0Pos, area.y+bottom);
             }

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

@@ -82,7 +82,7 @@ public class SignalPainter extends TrackPainter {
 	}
 
 	private int getXPosEnd(long time) {
-		long ltmp = time / this.waveCanvas.getScaleFactor();
+		long ltmp = time / this.waveCanvas.getScale();
 		return ltmp > maxPosX ? maxPosX : (int) ltmp;
 	}
 	
@@ -95,7 +95,7 @@ public class SignalPainter extends TrackPainter {
 		proj.setFillRule(SWT.FILL_EVEN_ODD);
 		proj.fillRectangle(area);
 
-		long scaleFactor = this.waveCanvas.getScaleFactor();
+		long scaleFactor = this.waveCanvas.getScale();
 		long beginPos = area.x;
 		long beginTime = beginPos*scaleFactor;
         long endTime = beginTime + area.width*scaleFactor;
@@ -114,7 +114,7 @@ public class SignalPainter extends TrackPainter {
 		yOffsetT = this.waveCanvas.styleProvider.getTrackHeight() / 5 + area.y;
 		yOffsetM = this.waveCanvas.styleProvider.getTrackHeight() / 2 + area.y;
 		yOffsetB = 4 * this.waveCanvas.styleProvider.getTrackHeight() / 5 + area.y;
-		int xSigChangeBeginVal = Math.max(area.x, (int) (left.time / this.waveCanvas.getScaleFactor()));
+		int xSigChangeBeginVal = Math.max(area.x, (int) (left.time / this.waveCanvas.getScale()));
 		int xSigChangeBeginPos = area.x;
 		int xSigChangeEndPos = Math.max(area.x, getXPosEnd(right.time));
 		
@@ -127,7 +127,7 @@ public class SignalPainter extends TrackPainter {
 				right.time = endTime;
 			} else {
 				multiple = true;
-				long eTime = (xSigChangeBeginVal + 1) * this.waveCanvas.getScaleFactor();
+				long eTime = (xSigChangeBeginVal + 1) * this.waveCanvas.getScale();
 				right.set(entries.floorEntry(eTime), endTime);
 				right.time = eTime;
 			}
@@ -147,7 +147,7 @@ public class SignalPainter extends TrackPainter {
 			multiple = false;
 			if (xSigChangeEndPos == xSigChangeBeginPos) {
 				multiple = true;
-				long eTime = (xSigChangeBeginPos + 1) * this.waveCanvas.getScaleFactor();
+				long eTime = (xSigChangeBeginPos + 1) * this.waveCanvas.getScale();
 				EventEntry entry = entries.floorEntry(eTime);
 				if(entry!=null && entry.timestamp> right.time)
 					right.set(entry, endTime);

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

@@ -67,7 +67,7 @@ public class StreamPainter extends TrackPainter{
 		proj.setFillRule(SWT.FILL_EVEN_ODD);
 		proj.fillRectangle(area);
 
-		long scaleFactor = this.waveCanvas.getScaleFactor();
+		long scaleFactor = this.waveCanvas.getScale();
 		long beginPos = area.x;
 		long beginTime = beginPos*scaleFactor;
 		long endTime = beginTime + area.width*scaleFactor;
@@ -130,8 +130,8 @@ public class StreamPainter extends TrackPainter{
 
 		int offset = concurrencyIndex*this.waveCanvas.styleProvider.getTrackHeight();
 		Rectangle bb = new Rectangle(
-				(int)(tx.getBeginTime()/this.waveCanvas.getScaleFactor()), area.y+offset+txBase,
-				(int)((tx.getEndTime()-tx.getBeginTime())/this.waveCanvas.getScaleFactor()), txHeight);
+				(int)(tx.getBeginTime()/this.waveCanvas.getScale()), area.y+offset+txBase,
+				(int)((tx.getEndTime()-tx.getBeginTime())/this.waveCanvas.getScale()), txHeight);
 
 		if(bb.x+bb.width<area.x || bb.x>area.x+area.width) return;
 		if(bb.width==0){
@@ -155,7 +155,7 @@ public class StreamPainter extends TrackPainter{
 
 	public ITx getClicked(Point point) {
 		int lane=point.y/waveCanvas.styleProvider.getTrackHeight();
-		EventEntry firstTx=stream.getEvents().floorEntry(point.x*waveCanvas.getScaleFactor());
+		EventEntry firstTx=stream.getEvents().floorEntry(point.x*waveCanvas.getScale());
 		if(firstTx!=null){
 			do {
 				ITx tx = getTxFromEntry(lane, point.x, firstTx.events);
@@ -175,9 +175,9 @@ public class StreamPainter extends TrackPainter{
 	}
 
 	protected ITx getTxFromEntry(int lane, int offset, IEvent[] firstTx) {
-		long timePoint=offset*waveCanvas.getScaleFactor();
-		long timePointLow=(offset-5)*waveCanvas.getScaleFactor();
-		long timePointHigh=(offset+5)*waveCanvas.getScaleFactor();
+		long timePoint=offset*waveCanvas.getScale();
+		long timePointLow=(offset-5)*waveCanvas.getScale();
+		long timePointHigh=(offset+5)*waveCanvas.getScale();
 		for(IEvent e:firstTx){
 			if(e instanceof ITxEvent) {
 				ITxEvent evt = (ITxEvent) e;

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

@@ -43,6 +43,7 @@ public class TrackAreaPainter implements IPainter {
 			Integer firstKey=trackVerticalOffset.floorKey(area.y);
 			if(firstKey==null) firstKey=trackVerticalOffset.firstKey();
 			Integer lastKey = trackVerticalOffset.floorKey(area.y+area.height);
+			//if(lastKey==null) lastKey= trackVerticalOffset.lastKey();
 			Rectangle subArea = new Rectangle(area.x, 0, area.width, 0);
 			if(lastKey.equals(firstKey)){
 				subArea.y=firstKey;

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

@@ -42,20 +42,27 @@ import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxEvent;
 import com.minres.scviewer.database.ui.IWaveformStyleProvider;
 import com.minres.scviewer.database.ui.IWaveformView;
+import com.minres.scviewer.database.ui.IWaveformZoom;
 import com.minres.scviewer.database.ui.TrackEntry;
+import com.minres.scviewer.database.ui.ZoomKind;
 import com.minres.scviewer.database.ui.swt.Constants;
+import com.minres.scviewer.database.ui.swt.internal.slider.ZoomBar;
 
-public class WaveformCanvas extends Canvas {
+public class WaveformCanvas extends Canvas implements IWaveformZoom{
+
+	public static final long ZOOM_FIT = -2;
+
+	public static final long ZOOM_FULL = -1;
+
+	private static final int INITIAL_ZOOM_BAR_MAX = 1000;
 	
 	private boolean doubleBuffering = true;
 
 	IWaveformStyleProvider styleProvider;
 
-    private long scaleFactor = 1000000L; // 1ns
+	private int scaleMagnitude = 6;
 
-    String unit="ns";
-    
-    private int level = 12;
+	private long scaleFactor = Constants.POWERS_OF_TEN[scaleMagnitude];
 
 	private long maxTime;
 
@@ -77,22 +84,23 @@ public class WaveformCanvas extends Canvas {
 
 	private List<CursorPainter> cursorPainters;
 
+	private ZoomBar horizontal;
+
+	private int[] lastHorSelection;
+	
+	private long sliderScaleFactor = 1;
+	
+	private ScrollBar vertical;
+
 	HashMap<IWaveform, IWaveformPainter> wave2painterMap;
-    /**
-     * Constructor for ScrollableCanvas.
-     * 
-     * @param parent
-     *            the parent of this control.super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
-     * @param style
-     *            the style of this control.
-     */
-    public WaveformCanvas(final Composite parent, int style, IWaveformStyleProvider styleProvider) {
-        super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.V_SCROLL | SWT.H_SCROLL);
+
+	public WaveformCanvas(final Composite parent, int style, IWaveformStyleProvider styleProvider, ZoomBar.IProvider scrollbarProvider) {
+		super(parent, (style & ~SWT.H_SCROLL) | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.V_SCROLL );
 		this.styleProvider=styleProvider;
 		addControlListener(new ControlAdapter() { /* resize listener. */
 			@Override
 			public void controlResized(ControlEvent event) {
-                syncScrollBars();
+				syncSb();
 			}
 		});
 		addPaintListener((final PaintEvent event) -> paint(event.gc));
@@ -102,6 +110,8 @@ public class WaveformCanvas extends Canvas {
 		cursorPainters= new ArrayList<>();
 		wave2painterMap=new HashMap<>();
 
+		horizontal = scrollbarProvider.getScrollBar();
+		vertical = getVerticalBar();
 		initScrollBars();
 		// order is important: it is bottom to top
 		trackAreaPainter=new TrackAreaPainter(this);
@@ -110,10 +120,10 @@ public class WaveformCanvas extends Canvas {
 		painterList.add(arrowPainter);
 		rulerPainter=new RulerPainter(this);
 		painterList.add(rulerPainter);
-		CursorPainter cp = new CursorPainter(this, scaleFactor * 10, cursorPainters.size()-1);
+		CursorPainter cp = new CursorPainter(this, getScale() * 10, cursorPainters.size()-1);
 		painterList.add(cp);
 		cursorPainters.add(cp);
-		CursorPainter marker = new CursorPainter(this, scaleFactor * 100, cursorPainters.size()-1);
+		CursorPainter marker = new CursorPainter(this, getScale() * 100, cursorPainters.size()-1);
 		painterList.add(marker);
 		cursorPainters.add(marker);
 		wave2painterMap=new HashMap<>();
@@ -145,89 +155,107 @@ public class WaveformCanvas extends Canvas {
 
 	public void setOrigin(int x, int y) {
 		checkWidget();
-        ScrollBar hBar = getHorizontalBar();
-        hBar.setSelection(-x);
-        x = -hBar.getSelection();
-        ScrollBar vBar = getVerticalBar();
-        vBar.setSelection(-y);
-        y = -vBar.getSelection();
 		origin.x = x;
 		origin.y = y;
-        syncScrollBars();
+		syncSb();
 	}
 
+	@Override
 	public long getMaxTime() {
 		return maxTime;
 	}
 
 	public void setMaxTime(long maxTime) {
 		this.maxTime = maxTime;
-        syncScrollBars();
+		if(maxTime>INITIAL_ZOOM_BAR_MAX) {
+			long maxBarTime = maxTime;
+			while(maxBarTime>Integer.MAX_VALUE)	maxBarTime/=1000;
+			horizontal.setMaximum((int) maxBarTime);
+		}
+		sliderScaleFactor = maxTime/horizontal.getMaximum();
+		syncSb();
 	}
 
-    public int getZoomLevel() {
-        return level;
+	@Override
+	public long getScale() {
+		return scaleFactor;
 	}
 
-    public int getMaxZoomLevel(){
-    	return Constants.UNIT_MULTIPLIER.length*Constants.UNIT_STRING.length-1;
+	@Override
+	public void setScale(long factor) {
+		setScalingFactor(factor, (getMaxVisibleTime()+getMinVisibleTime())/2);
 	}
 
-    public void setZoomLevel(int level) {
-		long tc=cursorPainters.get(0).getTime(); // cursor time
-		setZoomLevel(level, tc);
+	@Override
+	public void setVisibleRange(long startTime, long endTime) {
+		assert(startTime<endTime);
+		long time_diff = endTime-startTime;
+		long factor = (time_diff*11/10)/getClientArea().width;
+		setScalingFactor(factor, startTime+time_diff/2);
 	}
 
-    public void setZoomLevel(int level, long centerTime) {
-    	//FIXME: keep center if zoom-out and cursor is not in view
-    	if(level<0) level = 0;
-		long xc=centerTime/this.scaleFactor; // cursor total x-offset
-    	if(level<Constants.UNIT_MULTIPLIER.length*Constants.UNIT_STRING.length){
-    		this.scaleFactor = (long) Math.pow(10, level>>1);
-    		if(level%2==1) this.scaleFactor*=3;
+	//@Override
+	public void setScalingFactor(long factor, long centerTime) {
+		Rectangle clientArea = getClientArea();
+		long clientAreaWidth = clientArea.width;
+		long maxFactor=maxTime/clientAreaWidth;
+		if(factor<0) {
+			if(factor== ZOOM_FIT) {
+				long cTime = getCursorPainters().get(0).getTime();
+				long time_diff = centerTime>cTime?centerTime-cTime:cTime-centerTime;
+				centerTime = (centerTime>cTime?cTime:centerTime)+time_diff/2;
+				factor = (time_diff*11/10)/clientAreaWidth;
+			} else if(factor== ZOOM_FULL)
+				factor = maxFactor;
+		} 
+		if(factor==0)
+			factor=1;
+		else if(factor>maxFactor)
+			factor=maxFactor;
+		if(factor!=getScale() || (getMaxVisibleTime()+getMinVisibleTime()/2) != centerTime) {
+			updateScaleFactor(factor);
 			ITx tx = arrowPainter.getTx();
 			arrowPainter.setTx(null);
 			/*
 			 * xc = tc/oldScaleFactor
 			 * xoffs = xc+origin.x
 			 * xcn = tc/newScaleFactor
-    		 * t0n = (xcn-xoffs)*scaleFactor
+			 * t0n = (xcn-xoffs)*getScale()
 			 */
-			long xoffs=xc+origin.x; // cursor offset relative to left border
-			long xcn=centerTime/scaleFactor; // new total x-offset
+			long xoffs = clientAreaWidth/2;
+			long xcn=centerTime/getScale(); // new total x-offset
 			long originX=xcn-xoffs;
 			if(originX>0) {
 				origin.x=(int) -originX; // new cursor time offset relative to left border
 			}else {
 				origin.x=0;
 			}
-    		syncScrollBars();
+			syncSb();
 			arrowPainter.setTx(tx);    		
 			redraw();
-    		this.level = level;
 		}
 	}
 
-    public long getScaleFactor() {
-        return scaleFactor;
+	private void updateScaleFactor(long factor) {
+		scaleFactor = factor;
+		scaleMagnitude = 0;
+		for(int i=Constants.POWERS_OF_TEN.length-1; i>0; i--) {
+			if(scaleFactor>=Constants.POWERS_OF_TEN[i]) {
+				scaleMagnitude = i;
+				break;
+			}
+		}
 	}
 
-    public long getScaleFactorPow10() {
-    	int scale = level/Constants.UNIT_MULTIPLIER.length;
-    	double res = Math.pow(1000, scale);
-    	return (long) res;
-    }
-
-    public String getUnitStr(){
-        return Constants.UNIT_STRING[level/Constants.UNIT_MULTIPLIER.length];
-    }
-     
-    public int getUnitMultiplier(){
-        return Constants.UNIT_MULTIPLIER[level%Constants.UNIT_MULTIPLIER.length];
+	@Override
+	public String timeToString(long time) {
+		int idx = scaleMagnitude/3;
+		double fTime = (double)time/Constants.UNIT_MULTIPLIER[idx];
+		return Constants.getTimeFormatForLevel(idx).format(fTime)+Constants.UNIT_STRING[idx];
 	}
 
 	public long getTimeForOffset(int xOffset){
-        return (xOffset-origin.x) * scaleFactor;
+		return (xOffset-origin.x) * getScale();
 	}
 
 	public void addPainter(IPainter painter) {
@@ -247,7 +275,7 @@ public class WaveformCanvas extends Canvas {
 	void clearAllWaveformPainter(boolean update) {
 		trackAreaPainter.trackVerticalOffset.clear();
 		wave2painterMap.clear();
-        if(update) syncScrollBars();
+		if(update) syncSb();
 	}
 
 	public void addWaveformPainter(IWaveformPainter painter) {
@@ -257,7 +285,7 @@ public class WaveformCanvas extends Canvas {
 	void addWaveformPainter(IWaveformPainter painter, boolean update) {
 		trackAreaPainter.addTrackPainter(painter);
 		wave2painterMap.put(painter.getTrackEntry().waveform, painter);
-        if(update) syncScrollBars();
+		if(update) syncSb();
 	}
 
 	public List<CursorPainter> getCursorPainters() {
@@ -266,26 +294,41 @@ public class WaveformCanvas extends Canvas {
 
 	/* Initialize the scrollbar and register listeners. */
 	private void initScrollBars() {
-        ScrollBar horizontal = getHorizontalBar();
 		horizontal.setEnabled(false);
 		horizontal.setVisible(true);
 		horizontal.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent event) {
-                if (painterList.isEmpty())
-                    return;
-                setOrigin(-((ScrollBar) event.widget).getSelection(), origin.y);
+				if (!painterList.isEmpty()) {
+					int[] sel = horizontal.getSelection();
+					long lowerTime = sel[0]*sliderScaleFactor;
+					long upperTime = sel[1]*sliderScaleFactor;
+					if(sel[1]-sel[0] != lastHorSelection[1]-lastHorSelection[0]) {
+						long time_diff = upperTime-lowerTime;
+						long factor = time_diff/getClientArea().width;
+						setScalingFactor(factor, lowerTime+time_diff/2);
+					} else {
+						origin.x = -(int) (lowerTime/getScale());
+						WaveformCanvas.this.getDisplay().asyncExec(() -> {redraw();});
+					}
+					lastHorSelection=sel;
+				}
 			}
 		});
-        ScrollBar vertical = getVerticalBar();
+		horizontal.setMinimum(0);
+		horizontal.setMaximum(INITIAL_ZOOM_BAR_MAX);
+		lastHorSelection = horizontal.getSelection();
+		
 		vertical.setEnabled(false);
 		vertical.setVisible(true);
 		vertical.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent event) {
-                if (painterList.isEmpty())
-                    return;
-                setOrigin(origin.x, -((ScrollBar) event.widget).getSelection());
+				if (!painterList.isEmpty()) {
+					origin.y=-vertical.getSelection();
+					fireSelectionEvent();
+					WaveformCanvas.this.getDisplay().asyncExec(() -> {redraw();});
+				}
 			}
 		});
 	}
@@ -295,50 +338,48 @@ public class WaveformCanvas extends Canvas {
 	 * range, it will correct it. This function considers only following factors
 	 * :<b> transform, image size, client area</b>.
 	 */
-    public void syncScrollBars() {
-        if (painterList.isEmpty()) {
+	public void syncSb() {
+		if (!painterList.isEmpty()) {
+			syncHSb();
+			syncVSb();
+			fireSelectionEvent();
+		}
 		redraw();
-            return;
 	}
-        int height = trackAreaPainter.getHeight(); // incl. Ruler
-        long width = maxTime / scaleFactor;
-        Rectangle clientArea=getClientArea();
-        ScrollBar horizontal = getHorizontalBar();
-        horizontal.setIncrement(getClientArea().width / 100);
-        horizontal.setPageIncrement(getClientArea().width);
-        int clientWidthw = clientArea.width;
-        if (width > clientWidthw) { /* image is wider than client area */
-        	horizontal.setMinimum(0);
-            horizontal.setMaximum((int)width);
-            horizontal.setEnabled(true);
-            if (-origin.x > horizontal.getMaximum() - clientWidthw) {
-                origin.x = -horizontal.getMaximum() + clientWidthw;
-            }
-        } else { /* image is narrower than client area */
-            horizontal.setEnabled(false);
-        }
-        horizontal.setThumb(clientWidthw);
-        horizontal.setSelection(-origin.x);
 
-        ScrollBar vertical = getVerticalBar();
-        vertical.setIncrement(getClientArea().height / 100);
-        vertical.setPageIncrement(getClientArea().height);
-        int clientHeighth = clientArea.height;
-        if (height > clientHeighth) { /* image is higher than client area */
+	private void syncVSb() {
+		Rectangle clientArea=getClientArea();
+		int height = trackAreaPainter.getHeight(); // incl. Ruler
+		int clientHeight = clientArea.height;
+		vertical.setIncrement(clientHeight / 100);
+		vertical.setPageIncrement(clientHeight/2);
+		if (height > clientHeight) { /* image is higher than client area */
 			vertical.setMinimum(0);
 			vertical.setMaximum(height);
 			vertical.setEnabled(true);
-            if ( -origin.y > vertical.getMaximum() - clientHeighth) {
-                origin.y = -vertical.getMaximum() + clientHeighth;
+			if ( -origin.y > vertical.getMaximum() - clientHeight) {
+				origin.y = -vertical.getMaximum() + clientHeight;
 			}
 		} else { /* image is less higher than client area */
-            vertical.setMaximum(clientHeighth);
+			vertical.setMaximum(clientHeight);
 			vertical.setEnabled(false);
 		}
-        vertical.setThumb(clientHeighth);
+		vertical.setThumb(clientHeight);
 		vertical.setSelection(-origin.y);
-        redraw();
-        fireSelectionEvent();
+	}
+
+	private void syncHSb() {
+		horizontal.setEnabled(wave2painterMap.size()>0);
+		Rectangle clientArea=getClientArea();
+		int clientWidth = clientArea.width;
+		if(sliderScaleFactor>0) {
+			int lower = (int) ( (           -origin.x  * getScale()) / sliderScaleFactor);
+			int upper = (int) (((clientWidth-origin.x) * getScale()) / sliderScaleFactor);
+			lastHorSelection = new int[] {Math.max(lower,0), Math.min(upper, horizontal.getMaximum())};
+			horizontal.setSelection(lastHorSelection);
+		}
+		long width = maxTime / getScale();
+		horizontal.setButtonsEnabled(width > clientWidth);
 	}
 
 	/* Paint function */
@@ -388,7 +429,7 @@ public class WaveformCanvas extends Canvas {
 					result.add(entry.getValue().getTrackEntry());
 				}
 			} else if (p instanceof CursorPainter) {
-                if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/scaleFactor) < 2) {
+				if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/getScale()) < 2) {
 					result.add(p);
 				}
 			}
@@ -416,11 +457,11 @@ public class WaveformCanvas extends Canvas {
 	}
 
 	public void reveal(ITx tx) {
-        int lower = (int) (tx.getBeginTime() / scaleFactor);
-        int higher = (int) (tx.getEndTime() / scaleFactor);
+		int lower = (int) (tx.getBeginTime() / getScale());
+		int higher = (int) (tx.getEndTime() / getScale());
 		Point size = getSize();
-        size.x -= getVerticalBar().getSize().x + 2;
-        size.y -= getHorizontalBar().getSize().y;
+		size.x -= vertical.getSize().x + 2;
+		size.y -= horizontal.getSize().y;
 		if (lower < -origin.x) {
 			setOrigin(-lower, origin.y);
 		} else if (higher > (size.x - origin.x)) {
@@ -449,9 +490,8 @@ public class WaveformCanvas extends Canvas {
 			if(te.waveform == waveform) {
 				Point size = getSize();
 				size.y -=+rulerHeight;
-                ScrollBar sb = getHorizontalBar();
-                if((sb.getStyle()&SWT.SCROLLBAR_OVERLAY)!=0 && sb.isVisible())
-                	size.y-=  getHorizontalBar().getSize().y;
+				if((horizontal.getStyle()&SWT.SCROLLBAR_OVERLAY)!=0 && horizontal.isVisible())
+					size.y-=  horizontal.getSize().y;
 				int top = te.vOffset;
 				int bottom = top + styleProvider.getTrackHeight();
 				if (top < -origin.y) {
@@ -464,10 +504,10 @@ public class WaveformCanvas extends Canvas {
 	}
 
 	public void reveal(long time) {
-        int scaledTime = (int) (time / scaleFactor);
+		int scaledTime = (int) (time / getScale());
 		Point size = getSize();
-        size.x -= getVerticalBar().getSize().x + 2;
-        size.y -= getHorizontalBar().getSize().y;
+		size.x -= vertical.getSize().x + 2;
+		size.y -= horizontal.getSize().y;
 		if (scaledTime < -origin.x) {
 			setOrigin(-scaledTime+10, origin.y);
 		} else if (scaledTime > (size.x - origin.x)) {
@@ -475,6 +515,13 @@ public class WaveformCanvas extends Canvas {
 		}
 	}
 
+	@Override
+	public void centerAt(long time) {
+		int scaledTime = (int) (time / getScale());
+		int newX = -scaledTime+getWidth()/2;
+		setOrigin(newX>0?0:newX, origin.y);
+	}
+
 	public int getRulerHeight() {
 		return rulerHeight;
 	}
@@ -507,16 +554,55 @@ public class WaveformCanvas extends Canvas {
 		}
 	}
 
-    long getMaxVisibleTime() {
-    	return (getClientArea().width+origin.x)*scaleFactor;
+
+	@Override
+	public long getMaxVisibleTime() {
+		return (getClientArea().width-origin.x)*getScale();
 	}
 
-    long getMinVisibleTime() {
-    	return origin.x * scaleFactor;
+	@Override
+	public long getMinVisibleTime() {
+		return -origin.x * getScale();
+	}
+
+	@Override
+	public void setMinVisibleTime(long time) {
+		long duration = getMaxVisibleTime()-getMinVisibleTime();
+		if(time>0) {
+			if((time+duration)<getMaxTime()) {
+				int scaledTime = (int) (time / getScale());
+				setOrigin(-scaledTime, origin.y);
+			}
+		} else {
+			setOrigin(0, origin.y);
+		}
+	}
+
+	@Override
+	public void zoom(ZoomKind kind) {
+		switch(kind) {
+		case IN:
+			setScale(getScale()/2);
+			break;
+		case OUT:
+			setScale(getScale()*2);			
+			break;
+		case FIT:
+			setScalingFactor(WaveformCanvas.ZOOM_FIT, cursorPainters.get(1).getTime());
+			break;
+		case FULL:
+			setScale(WaveformCanvas.ZOOM_FULL);
+			break;
+		}
 	}
 
 	public void setStyleProvider(IWaveformStyleProvider styleProvider) {
 		this.styleProvider=styleProvider;
 		redraw();
 	}
+
+	public int getScaleMagnitude() {
+		return scaleMagnitude;
+	}
+
 }

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

@@ -13,7 +13,6 @@ package com.minres.scviewer.database.ui.swt.internal;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
-import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
@@ -90,8 +89,9 @@ import com.minres.scviewer.database.ui.GotoDirection;
 import com.minres.scviewer.database.ui.ICursor;
 import com.minres.scviewer.database.ui.IWaveformStyleProvider;
 import com.minres.scviewer.database.ui.IWaveformView;
+import com.minres.scviewer.database.ui.IWaveformZoom;
 import com.minres.scviewer.database.ui.TrackEntry;
-import com.minres.scviewer.database.ui.swt.Constants;
+import com.minres.scviewer.database.ui.swt.internal.slider.ZoomBar;
 
 public class WaveformView implements IWaveformView {
 
@@ -99,8 +99,6 @@ public class WaveformView implements IWaveformView {
 
 	private PropertyChangeSupport pcs;
 
-	static final DecimalFormat df = new DecimalFormat("#0.00####");
-
 	private ITx currentTxSelection;
 
 	private ArrayList<TrackEntry> currentWaveformSelection = new ArrayList<>();
@@ -115,6 +113,10 @@ public class WaveformView implements IWaveformView {
 
 	private final Canvas valueList;
 
+	private final Control nameFill;
+	
+	private final Control valueFill;
+
 	final WaveformCanvas waveformCanvas;
 
 	final ToolTipHandler toolTipHandler;
@@ -163,8 +165,7 @@ public class WaveformView implements IWaveformView {
 									: 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);
 					}
@@ -197,64 +198,45 @@ public class WaveformView implements IWaveformView {
 			down = false;
 			if (start == null)
 				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) {
+			if ((e.stateMask & SWT.MODIFIER_MASK & ~(SWT.SHIFT | SWT.CTRL)) != 0)
+				return; // don't react on modifier except shift and control
+			boolean isCtrl = (e.stateMask & SWT.CTRL)!=0;
+			boolean isShift = (e.stateMask & SWT.SHIFT)!=0;
+			if (e.button == 1) {
+				if (Math.abs(e.x - start.x) > 3) { // was drag event
 					asyncUpdate(e.widget);
 					long startTime = waveformCanvas.getTimeForOffset(start.x);
 					long endTime = waveformCanvas.getTimeForOffset(end.x);
-				long targetTimeRange = endTime - startTime;
+					if(startTime<endTime) {
+						waveformCanvas.setVisibleRange(startTime, endTime);
+					} else if(start.x!=end.x){
+						long targetTimeRange = startTime-endTime;
 						long currentTimeRange = waveformCanvas.getMaxVisibleTime() - waveformCanvas.getMinVisibleTime();
-				if (targetTimeRange == 0)
-					return;
-				long relation = currentTimeRange / targetTimeRange;
-				long i = 1;
-				int level = 0;
-				do {
-					if (relation < 0) {
-						if (-relation < i) {
-							break;
+						long factor = currentTimeRange/targetTimeRange *waveformCanvas.getScale();
+						waveformCanvas.setScalingFactor(factor, (startTime+endTime)/2);
+												
 					}
-						level--;
-						if (-relation < i * 3) {
-							break;
-						}
-						level--;
-					} else {
-						if (relation < i) {
-							break;
-						}
-						level++;
-						if (relation < i * 3) {
-							break;
-						}
-						level++;
-					}
-					i = i * 10;
-				} while (i < 10000);
-				if (i < 10000) {
-					int curLevel = waveformCanvas.getZoomLevel();
-					waveformCanvas.setZoomLevel(curLevel - level, (startTime + endTime) / 2);
-				}
-			} else if (e.button == 1 && ((e.stateMask & SWT.SHIFT) == 0)) {
-				// set cursor (button 1 and no shift)
-				if (Math.abs(e.x - start.x) < 3 && Math.abs(e.y - start.y) < 3) {
+				} else if( isShift) { // set marker (button 1 and shift)
+					setMarkerTime(selectedMarker, snapOffsetToEvent(start));
+				} else if(isCtrl) {	// set cursor (button 1 and ctrl)
+					setCursorTime(snapOffsetToEvent(start));
+				} else { // set cursor (button 1 only)
+					if (Math.abs(e.y - start.y) < 3) {
 						// first set cursor time
 						setCursorTime(snapOffsetToEvent(start));
 						// then set selection and reveal
 						setSelection(new StructuredSelection(initialSelected));
-					asyncUpdate(e.widget);
 					}
-			} else if (e.button == 2 || (e.button == 1 && (e.stateMask & SWT.SHIFT) != 0)) {
-				// set marker (button 1 and shift)
-				setMarkerTime(snapOffsetToEvent(start), selectedMarker);
-				asyncUpdate(e.widget);
 				}
+			} else if (e.button == 2) { // set marker (button 2)
+				setMarkerTime(selectedMarker, snapOffsetToEvent(start));
+			}
+			asyncUpdate(e.widget);
 		}
 
 		protected long snapOffsetToEvent(Point p) {
 			long time = waveformCanvas.getTimeForOffset(p.x);
-			long scaling = 5 * waveformCanvas.getScaleFactor();
+			long scaling = 5 * waveformCanvas.getScale();
 			for (Object o : waveformCanvas.getElementsAt(p)) {
 				EventEntry floorEntry = null;
 				EventEntry ceilEntry = null;
@@ -288,6 +270,25 @@ public class WaveformView implements IWaveformView {
 		public void handleEvent(Event e) {
 			switch (e.type) {
 			case SWT.MouseWheel:
+				if((e.stateMask & SWT.CTRL) != 0) {
+					if(e.count<0) // up scroll
+						waveformCanvas.setScale(waveformCanvas.getScale()*11/10);
+					else // down scroll
+						waveformCanvas.setScale(waveformCanvas.getScale()*10/11);
+					e.doit=false;
+				} else if((e.stateMask & SWT.SHIFT) != 0) {
+					long upper = waveformCanvas.getMaxVisibleTime();
+					long lower = waveformCanvas.getMinVisibleTime();
+					long duration = upper-lower;
+					if(e.count<0) { // up scroll
+						long newLower = Math.min(waveformCanvas.getMaxTime()-duration, lower+duration/10);
+						waveformCanvas.setMinVisibleTime(newLower);
+					} else {// down scroll
+						long newLower = Math.max(0, lower-duration/10);
+						waveformCanvas.setMinVisibleTime(newLower);
+					}
+					e.doit=false;
+				}
 				break;
 			case SWT.MouseDown:
 				start = new Point(e.x, e.y);
@@ -347,7 +348,25 @@ public class WaveformView implements IWaveformView {
 		rightSash.setBackground(SWTResourceManager.getColor(SWT.COLOR_GRAY));
 
 		Composite valuePane = new Composite(rightSash, SWT.NONE);
-		waveformCanvas = new WaveformCanvas(rightSash, SWT.NONE, styleProvider);
+		
+		Composite waveformPane = new Composite(rightSash, SWT.NONE);
+		GridLayout gl_waveformPane = new GridLayout(1, false);
+		gl_waveformPane.verticalSpacing = 0;
+		gl_waveformPane.marginWidth = 0;
+		gl_waveformPane.marginHeight = 0;
+		waveformPane.setLayout(gl_waveformPane);
+		
+		waveformCanvas = new WaveformCanvas(waveformPane, SWT.NONE | SWT.V_SCROLL /*| SWT.H_SCROLL*/, styleProvider, new ZoomBar.IProvider() {
+			
+			@Override
+			public ZoomBar getScrollBar() {
+				ZoomBar timeSliderPane = new ZoomBar(waveformPane, SWT.NONE);
+				GridData gd_timeSliderPane = new GridData(SWT.FILL, SWT.BOTTOM, false, false, 1, 1);
+				timeSliderPane.setLayoutData(gd_timeSliderPane);
+				return timeSliderPane;
+			}
+		});
+		waveformCanvas.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
 		
 		// create the name pane
 		createTextPane(namePane, "Name");
@@ -364,7 +383,10 @@ public class WaveformView implements IWaveformView {
 			@Override
 			public void controlResized(ControlEvent e) {
 				nameListScrolled.getVerticalBar().setVisible(false);
-
+				if(nameListScrolled.getSize().y == nameList.getSize().y) {
+					((GridData)nameFill.getLayoutData()).heightHint=18;
+					namePane.layout();
+				}
 			}
 		});
 		nameList = new Canvas(nameListScrolled, SWT.NONE) {
@@ -383,6 +405,7 @@ public class WaveformView implements IWaveformView {
 		});
 		nameList.addMouseListener(nameValueMouseListener);
 		nameListScrolled.setContent(nameList);
+		nameFill = createFill(namePane);
 		
 		createTextPane(valuePane, "Value");
 
@@ -396,7 +419,10 @@ public class WaveformView implements IWaveformView {
 			@Override
 			public void controlResized(ControlEvent e) {
 				valueListScrolled.getVerticalBar().setVisible(false);
-
+				if(valueListScrolled.getSize().y == valueList.getSize().y) {
+					((GridData)valueFill.getLayoutData()).heightHint=18;
+					valuePane.layout();
+				}
 			}
 		});
 		valueList = new Canvas(valueListScrolled, SWT.NONE) {
@@ -415,6 +441,7 @@ public class WaveformView implements IWaveformView {
 		});
 		valueList.addMouseListener(nameValueMouseListener);
 		valueListScrolled.setContent(valueList);
+		valueFill = createFill(valuePane);
 
 		waveformCanvas.setMaxTime(1);
 		waveformCanvas.addPaintListener(waveformMouseListener);
@@ -461,6 +488,26 @@ public class WaveformView implements IWaveformView {
 
 		toolTipHandler = new ToolTipHandler(parent.getShell());
 		toolTipHandler.activateHoverHelp(waveformCanvas);
+	    // This is the filter that prevents the default handling of mouse wheel in waveformCanvas
+	    getControl().getDisplay().addFilter(SWT.MouseWheel, new Listener() {
+	        @Override
+	        public void handleEvent(Event e) {
+	            // Check if it's the correct widget
+	            if(e.widget.equals(waveformCanvas) && (e.stateMask & SWT.CTRL) != 0) {
+	            	waveformMouseListener.handleEvent(e);
+	                e.doit = false;
+	            }
+	        }
+	    });
+	}
+
+	private Control createFill(Composite pane) {
+		Label cLabel = new Label(pane, SWT.NONE);
+		cLabel.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
+		GridData gd_cLabel = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
+		gd_cLabel.heightHint = 0;
+		cLabel.setLayoutData(gd_cLabel);
+		return cLabel;
 	}
 
 	private void createTextPane(Composite namePane, String text) {
@@ -528,7 +575,7 @@ public class WaveformView implements IWaveformView {
 			tracksVerticalHeight += streamEntry.height;
 			even = !even;
 		}
-		waveformCanvas.syncScrollBars();
+		waveformCanvas.syncSb();
 		nameList.setSize(nameMaxWidth + 15, tracksVerticalHeight);
 		nameListScrolled.setMinSize(nameMaxWidth + 15, tracksVerticalHeight);
 		nameList.redraw();
@@ -752,8 +799,9 @@ public class WaveformView implements IWaveformView {
 				if (!add)
 					currentWaveformSelection.clear();
 				List<?> selList = sel.toList();
-				if (selList.get(0) instanceof ITx) {
-					ITx txSel = (ITx) selList.get(0);
+				for(Object o: selList) {
+					if (o instanceof ITx) {
+						ITx txSel = (ITx) o;
 						TrackEntry trackEntry = selList.size() == 2 && selList.get(1) instanceof TrackEntry
 								? (TrackEntry) selList.get(1)
 										: null;
@@ -768,12 +816,14 @@ public class WaveformView implements IWaveformView {
 						currentWaveformSelection.clear();
 						currentWaveformSelection.add(trackEntry);
 						selectionChanged = true;
-				} else if (selList.size() == 1 && selList.get(0) instanceof TrackEntry) {
-					currentWaveformSelection.add((TrackEntry) selList.get(0));
-					if (currentTxSelection != null)
-						currentTxSelection = null;
+					} else if (o instanceof TrackEntry) {
+						TrackEntry e = (TrackEntry)o;
+						if(!currentWaveformSelection.contains(e))
+							currentWaveformSelection.add(e);
 						selectionChanged = true;
 					}
+					
+				}
 			}
 		} else {
 			if (currentTxSelection != null || !currentWaveformSelection.isEmpty())
@@ -1115,16 +1165,6 @@ public class WaveformView implements IWaveformView {
 		this.waveformCanvas.setHighliteRelation(relationType);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getMaxTime()
-	 */
-	@Override
-	public long getMaxTime() {
-		return waveformCanvas.getMaxTime();
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * 
@@ -1135,27 +1175,6 @@ public class WaveformView implements IWaveformView {
 		this.waveformCanvas.setMaxTime(maxTime);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setZoomLevel(int)
-	 */
-	@Override
-	public void setZoomLevel(int scale) {
-		waveformCanvas.setZoomLevel(scale);
-		waveformCanvas.reveal(getCursorTime());
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getZoomLevel()
-	 */
-	@Override
-	public int getZoomLevel() {
-		return waveformCanvas.getZoomLevel();
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * 
@@ -1174,10 +1193,10 @@ public class WaveformView implements IWaveformView {
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#setMarkerTime(long, int)
 	 */
 	@Override
-	public void setMarkerTime(long time, int index) {
-		if (waveformCanvas.getCursorPainters().size() > index + 1) {
-			final Long oldVal = waveformCanvas.getCursorPainters().get(1 + index).getTime();
-			waveformCanvas.getCursorPainters().get(1 + index).setTime(time);
+	public void setMarkerTime(int marker, long time) {
+		if (waveformCanvas.getCursorPainters().size() > marker + 1) {
+			final Long oldVal = waveformCanvas.getCursorPainters().get(1 + marker).getTime();
+			waveformCanvas.getCursorPainters().get(1 + marker).setTime(time);
 			pcs.firePropertyChange(MARKER_PROPERTY, oldVal, time);
 		}
 	}
@@ -1198,7 +1217,7 @@ public class WaveformView implements IWaveformView {
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getActMarkerTime()
 	 */
 	@Override
-	public int getSelectedMarkerId() {
+	public int getSelectedMarker() {
 		return selectedMarker;
 	}
 
@@ -1450,58 +1469,32 @@ public class WaveformView implements IWaveformView {
 		return this.pcs.hasListeners(propertyName);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getScaledTime(long)
-	 */
-	@Override
-	public String getScaledTime(long time) {
-		StringBuilder sb = new StringBuilder();
-		double dTime = time;
-		double scaledTime = dTime / waveformCanvas.getScaleFactorPow10();
-		return sb.append(df.format(scaledTime)).append(waveformCanvas.getUnitStr()).toString();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getZoomLevels()
-	 */
-	@Override
-	public String[] getZoomLevels() {
-		String[] res = new String[Constants.UNIT_MULTIPLIER.length * Constants.UNIT_STRING.length];
-		int index = 0;
-		for (String unit : Constants.UNIT_STRING) {
-			for (int factor : Constants.UNIT_MULTIPLIER) {
-				res[index++] = Integer.toString(factor) + unit;
-			}
-		}
-		return res;
-	}
-
-	@Override
-	public long getBaselineTime() {
-		return -waveformCanvas.getScaleFactorPow10() * waveformCanvas.getOrigin().x;
-	}
-
-	@Override
-	public void setBaselineTime(Long time) {
-		Point origin = waveformCanvas.getOrigin();
-		origin.x = (int) (-time / waveformCanvas.getScaleFactorPow10());
-		waveformCanvas.setOrigin(origin);
-	}
-
 	@Override
 	public void scrollHorizontal(int percent) {
 		if (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);
-		waveformCanvas.redraw();
+		long minTime = waveformCanvas.getMinVisibleTime();
+		long duration = waveformCanvas.getMaxVisibleTime()-minTime;
+		long diff = (duration * percent) / 100;
+		waveformCanvas.setMinVisibleTime(minTime+diff);
+	}
+
+	@Override
+	public void scrollTo(int pos) {
+		long time = 0;
+		switch(pos) {
+		case IWaveformView.CURSOR_POS:
+			time = getCursorTime();
+			break;
+		case IWaveformView.MARKER_POS:
+			time = getMarkerTime(selectedMarker);
+			break;
+		default:
+			break;
+		}
+		waveformCanvas.centerAt(time);
 	}
 
 	public void asyncUpdate(Widget widget) {
@@ -1534,4 +1527,12 @@ public class WaveformView implements IWaveformView {
 		return e;
 	}
 	
+	public boolean waveformsContainsTx() {
+		return  streams.stream().filter(e -> e.waveform.getType() == WaveformType.TRANSACTION).findFirst().isPresent();
+	}
+
+	@Override
+	public IWaveformZoom getWaveformZoom() {
+		return waveformCanvas;
+	}
 }

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

@@ -0,0 +1,35 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import org.eclipse.swt.widgets.Display;
+
+public class ActionTimer implements Runnable {
+
+	public static final int INITIAL_DELAY = 300;
+	public static final int FAST_DELAY = 50;
+
+	private final Display display;
+	private final TimerAction timerAction;
+
+	public interface TimerAction extends Runnable {
+		boolean isEnabled();
+	}
+
+	public ActionTimer( TimerAction timerAction, Display display ) {
+		this.display = display;
+		this.timerAction = timerAction;
+	}
+
+	public void activate() {
+		if( timerAction.isEnabled() ) {
+			display.timerExec( INITIAL_DELAY, this );
+		}
+	}
+
+	@Override
+	public void run() {
+		if( timerAction.isEnabled() ) {
+			timerAction.run();
+			display.timerExec( FAST_DELAY, this );
+		}
+	}
+}

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

@@ -0,0 +1,192 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+
+public class ImageButton extends Composite
+{
+	private Image   hoverImage;
+	private Image   normalImage;
+	private Image   pressedImage;
+	private Image   disabledImage;
+	private int     width;
+	private int     height;
+	private boolean hover;
+	private boolean pressed;
+	private boolean autoFire;
+	private ActionTimer actionTimer;
+	private ActionTimer.TimerAction timerAction;
+
+	public ImageButton(Composite parent, int style)	{
+		super(parent, style);		
+		timerAction = new ActionTimer.TimerAction() {
+			@Override
+			public void run() {
+				notifyListeners();
+			}
+			@Override
+			public boolean isEnabled() {
+				return pressed;
+			}
+		};
+		actionTimer = new ActionTimer(timerAction, this.getDisplay() );
+		addListener(SWT.Dispose, event ->  {
+			if (hoverImage != null)	hoverImage.dispose();
+			if (normalImage != null) normalImage.dispose();
+			if (pressedImage != null) pressedImage.dispose();
+			if (disabledImage != null) disabledImage.dispose();
+		});
+		addListener(SWT.Paint, event -> {
+			paintControl(event);
+		});
+		addMouseTrackListener(new MouseTrackAdapter() {
+			public void mouseEnter(MouseEvent arg0) {
+				if(isEnabled()) {
+					hover=true;
+					redraw();
+				}
+			}
+			public void mouseExit(MouseEvent arg0) {
+				if(isEnabled()) {
+					hover=false;
+					redraw();
+				}
+			}
+		});
+		addMouseListener(new MouseAdapter() {
+			@Override
+			public void mouseDown(MouseEvent e) {
+				if(isEnabled()) {
+					pressed=true;
+					notifyListeners();
+					if(autoFire) actionTimer.activate();
+					redraw();
+				}
+			}
+
+			@Override
+			public void mouseUp(MouseEvent e) {
+				pressed=false;
+				redraw();
+			}
+		});
+	}
+
+	private void paintControl(Event event) { 
+		GC gc = event.gc;
+		if (hoverImage != null)	{
+			if(pressed)
+				gc.drawImage(pressedImage, 1, 1);
+			else if(hover) {
+				gc.drawImage(hoverImage, 1, 1);
+			} else if(isEnabled()){
+				gc.drawImage(normalImage, 1, 1);
+			} else
+				gc.drawImage(disabledImage, 1, 1);
+		}
+	}
+
+	public void setImage(Image[] imgs) {
+		assert(imgs.length==3);
+		Display d = Display.getDefault();
+		normalImage =   new Image(d, imgs[0], SWT.IMAGE_COPY);
+		hoverImage =    new Image(d, imgs[1], SWT.IMAGE_COPY);
+		pressedImage =  new Image(d, imgs[2], SWT.IMAGE_COPY);
+		disabledImage = new Image(d, imgs[0], SWT.IMAGE_DISABLE);
+		width = imgs[0].getBounds().width;
+		height = imgs[0].getBounds().height;
+		redraw();
+	}
+
+	@Override
+	public Point computeSize(int wHint, int hHint, boolean changed) {
+		int overallWidth = width;
+		int overallHeight = height;
+		if (wHint != SWT.DEFAULT && wHint < overallWidth)
+			overallWidth = wHint;
+		if (hHint != SWT.DEFAULT && hHint < overallHeight)
+			overallHeight = hHint;
+		return new Point(overallWidth + 2, overallHeight + 2);
+	}
+	/**
+	 * Adds the listener to the collection of listeners who will be notified when
+	 * the user changes the receiver's value, by sending it one of the messages
+	 * defined in the <code>SelectionListener</code> interface.
+	 * <p>
+	 * <code>widgetSelected</code> is called when the user changes the receiver's
+	 * value. <code>widgetDefaultSelected</code> is not called.
+	 * </p>
+	 *
+	 * @param listener the listener which should be notified
+	 *
+	 * @exception IllegalArgumentException
+	 *                <ul>
+	 *                <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+	 *                </ul>
+	 * @exception SWTException
+	 *                <ul>
+	 *                <li>ERROR_WIDGET_DISPOSED - if the receiver has been
+	 *                disposed</li>
+	 *                <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
+	 *                thread that created the receiver</li>
+	 *                </ul>
+	 *
+	 * @see SelectionListener
+	 * @see #removeSelectionListener
+	 */
+	public void addSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.addSelectionListener(this, listener);
+	}
+
+	/**
+	 * Removes the listener from the collection of listeners who will be notified
+	 * when the user changes the receiver's value.
+	 *
+	 * @param listener the listener which should no longer be notified
+	 *
+	 * @exception IllegalArgumentException
+	 *                <ul>
+	 *                <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
+	 *                </ul>
+	 * @exception SWTException
+	 *                <ul>
+	 *                <li>ERROR_WIDGET_DISPOSED - if the receiver has been
+	 *                disposed</li>
+	 *                <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
+	 *                thread that created the receiver</li>
+	 *                </ul>
+	 *
+	 * @see SelectionListener
+	 * @see #addSelectionListener
+	 */
+	public void removeSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.removeSelectionListener(this, listener);
+	}
+
+	private void notifyListeners() {
+		Event e = new Event();
+		e.widget=this;
+		e.type=SWT.Selection;
+		SelectionListenerUtil.fireSelectionListeners(this,e);
+	}
+
+	public boolean isAutoFire() {
+		return autoFire;
+	}
+
+	public void setAutoFire(boolean autoFire) {
+		this.autoFire = autoFire;
+	}
+}

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

@@ -0,0 +1,631 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import java.text.Format;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.events.PaintEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Canvas;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.wb.swt.SWTResourceManager;
+
+public class RangeSlider extends Canvas {
+
+	private static final int NONE = 0;
+	private static final int UPPER = 1 << 0;
+	private static final int LOWER = 1 << 1;
+	private static final int BOTH = UPPER | LOWER;
+
+	private final int minHeight;
+	private final int markerWidth;
+	private final int thumbWidth = 0;
+	private final Image[] slider, sliderHover, sliderDrag;
+	
+	private int minimum;
+	private int maximum;
+	private int lowerValue;
+	private int upperValue;
+	
+	private int increment;
+	private int pageIncrement;
+	private int selectedElement;
+	private boolean upperHover, lowerHover;
+	private int previousUpperValue, previousLowerValue;
+	private int startDragUpperValue, startDragLowerValue;
+	private Point startDragPoint;
+	private final boolean isFullSelection=false;
+	private final boolean isHighQuality;
+	private final boolean isOn;
+	private Format toolTipFormatter;
+	private String clientToolTipText;
+	private StringBuffer toolTip;
+	private Point coordUpper;
+	private Point coordLower;
+
+	public RangeSlider(final Composite parent, final int style) {
+		super(parent, SWT.DOUBLE_BUFFERED | ((style & SWT.BORDER) == SWT.BORDER ? SWT.BORDER : SWT.NONE));
+		slider = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r.png")};
+		sliderHover = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_hover.png")};
+		sliderDrag = new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "marker_l_pressed.png"),
+				SWTResourceManager.getImage(this.getClass(), "marker_r_pressed.png")};
+		Rectangle imgSize = slider[0].getBounds();
+		minHeight =imgSize.height+2;
+		markerWidth = imgSize.width;
+		minimum = lowerValue = 0;
+		maximum = upperValue = 100;
+		increment = 1;
+		pageIncrement = 10;
+		isHighQuality = (style & SWT.HIGH) == SWT.HIGH;
+		isOn = (style & SWT.ON) == SWT.ON;
+		selectedElement = NONE;
+
+		addMouseListeners();
+		addListener(SWT.Resize, event -> {
+		});
+		addListener(SWT.KeyDown, event -> {
+			handleKeyDown(event);
+		});
+		addPaintListener(event -> {
+			drawWidget(event);
+		});
+	}
+
+	@Override
+	public int getStyle() {
+		return super.getStyle() | //
+				(isOn ? SWT.ON : SWT.NONE) | //
+				(isFullSelection ? SWT.CONTROL : SWT.NONE) | //
+				(isHighQuality ? SWT.HIGH : SWT.NONE);
+	}
+
+	private void addMouseListeners() {
+		addListener(SWT.MouseDown, e -> {
+			if (e.button == 1 || e.button == 2) {
+				selectKnobs(e);
+				selectedElement = (lowerHover ? LOWER : NONE) | (upperHover ? UPPER : NONE);
+				if (selectedElement!=NONE) {
+					if((e.stateMask & SWT.CTRL)==0 && e.button != 2)
+						selectedElement=BOTH;
+					startDragLowerValue = previousLowerValue = lowerValue;
+					startDragUpperValue = previousUpperValue = upperValue;
+					startDragPoint = new Point(e.x, e.y);
+				}
+			}
+		});
+
+		addListener(SWT.MouseUp, e -> {
+			if (selectedElement!=NONE) {
+				startDragPoint = null;
+				validateNewValues(e);
+				super.setToolTipText(clientToolTipText);
+				selectedElement=NONE;
+				redraw();
+			} else if (e.button == 1) {
+				if(e.x<coordLower.x) {
+					translateValues(-pageIncrement);
+					validateNewValues(e);
+					redraw();
+				} else if(e.x>coordUpper.x+markerWidth) {
+					translateValues(pageIncrement);
+					validateNewValues(e);
+					redraw();
+				}
+			}
+		});
+
+		addListener(SWT.MouseDoubleClick, event -> {
+			handleMouseDoubleClick(event);
+		});
+
+		addListener(SWT.MouseMove, event -> {
+			handleMouseMove(event);
+		});
+
+		addListener(SWT.MouseWheel, event -> {
+			handleMouseWheel(event);
+		});
+
+		addListener(SWT.MouseHover, event -> {
+			handleMouseHover(event);
+		});
+
+		addMouseTrackListener(new MouseTrackAdapter() {
+			public void mouseExit(MouseEvent event) {
+				lowerHover = upperHover = false;
+				redraw();
+			}
+		});
+
+	}
+
+	private void validateNewValues(final Event e) {
+		if (upperValue != previousUpperValue || lowerValue != previousLowerValue) {
+			if (!SelectionListenerUtil.fireSelectionListeners(this,e)) {
+				upperValue = previousUpperValue;
+				lowerValue = previousLowerValue;
+			}
+			previousUpperValue = upperValue;
+			previousLowerValue = lowerValue;
+			increment = Math.max(1,  (upperValue-lowerValue)/100);
+			pageIncrement = Math.max(1, (upperValue-lowerValue)/2);
+			redraw();
+		}
+	}
+
+	private boolean busy = false;
+	
+	private void handleMouseMove(final Event e) {
+		if (selectedElement==NONE) {
+			final boolean wasUpper = upperHover;
+			final boolean wasLower = lowerHover;
+			selectKnobs(e);
+			if (wasUpper != upperHover || wasLower != lowerHover) {
+				redraw();
+			}
+		} else { // dragInProgress
+			final int x = e.x;
+			if (selectedElement == BOTH) {
+				final int diff = (int) ((startDragPoint.x - x) / computePixelSizeForSlider()) + minimum;
+				int newUpper = startDragUpperValue - diff;
+				int newLower = startDragLowerValue - diff;
+				if (newUpper > maximum) {
+					newUpper = maximum;
+					newLower = maximum - (startDragUpperValue - startDragLowerValue);
+				} else if (newLower < minimum) {
+					newLower = minimum;
+					newUpper = minimum + startDragUpperValue - startDragLowerValue;
+				}
+				upperValue = newUpper;
+				lowerValue = newLower;
+				handleToolTip(lowerValue, upperValue);
+			} else if (selectedElement == UPPER) {
+				upperValue = (int) Math.round((double)(x - markerWidth) / computePixelSizeForSlider()) + minimum;
+				checkUpperValue();
+				handleToolTip(upperValue);
+			} else if (selectedElement == LOWER){
+				lowerValue = (int) Math.round((double)(x - markerWidth) / computePixelSizeForSlider()) + minimum;
+				checkLowerValue();
+				handleToolTip(lowerValue);
+			}
+			if (isOn && !busy) {
+				validateNewValues(e);
+				busy=true;
+				getDisplay().timerExec(50, ()->{busy=false;});
+			} else {
+				redraw();
+			}
+		}
+	}
+
+	private boolean isBetweenKnobs(int x, int y) {
+		return x < coordUpper.x && x > coordLower.x && y >= minHeight/3 && y <= minHeight/3 + getClientArea().height - 2*minHeight/3;
+	}
+
+	private void selectKnobs(final Event e) {
+		if (coordLower != null) {
+			final Rectangle imgBounds = slider[0].getBounds();
+			final int x = e.x, y = e.y;
+			lowerHover = x >= coordLower.x && x <= coordLower.x + imgBounds.width && y >= coordLower.y && y <= coordLower.y + imgBounds.height;
+			upperHover = ((e.stateMask & (SWT.CTRL | SWT.SHIFT)) != 0 || !lowerHover) && //
+					x >= coordUpper.x && x <= coordUpper.x + imgBounds.width && //
+					y >= coordUpper.y && y <= coordUpper.y + imgBounds.height;
+					lowerHover &= (e.stateMask & SWT.CTRL) != 0 || !upperHover;
+			if (!lowerHover && !upperHover && isBetweenKnobs(x, y)) {
+				lowerHover = upperHover = true;
+			}		
+		}
+	}
+
+	private int getCursorValue(int x, int y) {
+		int value = -1;
+		final Rectangle clientArea = getClientArea();
+		if (x < clientArea.width - 2*markerWidth && x >= markerWidth && y >= minHeight/3 && y <=  clientArea.height - minHeight/3) {
+			value = (int) Math.round((x - 9d) / computePixelSizeForSlider()) + minimum;
+		}
+		return value;
+	}
+
+	private void handleMouseDoubleClick(final Event e) {
+		final int value = getCursorValue(e.x, e.y);
+		if (value >= 0) {
+			if (value > upperValue) {
+				translateValues(value-upperValue);
+			} else if (value < lowerValue) {
+				translateValues(value-lowerValue);
+			}
+			validateNewValues(e);
+		}
+	}
+
+	private void handleToolTip(int... values) {
+		if (toolTipFormatter != null) {
+			try {
+				if (values.length == 1) {
+					toolTip.setLength(0);
+					toolTipFormatter.format(values[0], toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				} else if (values.length == 2) {
+					toolTip.setLength(0);
+					toolTipFormatter.format(values[0], toolTip, null);
+					toolTip.append(" \u2194 "); // LEFT RIGHT ARROW
+					toolTipFormatter.format(values[1], toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				}
+			} catch (final IllegalArgumentException ex) {
+				super.setToolTipText(clientToolTipText);
+			}
+		}
+	}
+
+	private void handleMouseHover(final Event e) {
+		if (selectedElement!=NONE && toolTipFormatter != null) {
+			final int value = getCursorValue(e.x, e.y);
+			if (value >= 0) {
+				try {
+					toolTip.setLength(0);
+					toolTipFormatter.format(value, toolTip, null);
+					super.setToolTipText(toolTip.toString());
+				} catch (final IllegalArgumentException ex) {
+					super.setToolTipText(clientToolTipText);
+				}
+			} else {
+				super.setToolTipText(clientToolTipText);
+			}
+		}
+	}
+
+	public void setToolTipFormatter(Format formatter) {
+		toolTip = formatter != null ? new StringBuffer() : null;
+		toolTipFormatter = formatter;
+	}
+
+	@Override
+	public void setToolTipText(String string) {
+		super.setToolTipText(clientToolTipText = string);
+	}
+
+	private void handleMouseWheel(final Event e) {
+		previousLowerValue = lowerValue;
+		previousUpperValue = upperValue;
+		final int amount = Math.max(1, ((e.stateMask & SWT.SHIFT) != 0 ? (upperValue-lowerValue)/6 : (upperValue-lowerValue)/15));
+		if ((e.stateMask&SWT.CTRL)==0) {
+			int newLower = lowerValue + e.count * amount;
+			int newUpper = upperValue + e.count * amount;
+			if (newUpper > maximum) {
+				newUpper = maximum;
+				newLower = maximum - (upperValue - lowerValue);
+			} else if (newLower < minimum) {
+				newLower = minimum;
+				newUpper = minimum + upperValue - lowerValue;
+			}
+			upperValue = newUpper;
+			lowerValue = newLower;
+		} else {
+			int newLower = lowerValue + e.count * amount/2;
+			int newUpper = upperValue - e.count * amount/2;
+			int dist = newUpper - newLower;
+			if (newUpper > maximum) {
+				newUpper = maximum;
+				newLower = maximum - dist;
+			} else if (newLower < minimum) {
+				newLower = minimum;
+				newUpper = minimum + dist;
+			}
+			if(newUpper<=newLower) {
+				newLower=lowerValue + (upperValue - lowerValue)/2;
+				newUpper=newLower+1;
+			}
+			upperValue = newUpper;
+			lowerValue = newLower;
+		}
+		validateNewValues(e);
+		e.doit = false; // we are consuming this event
+	}
+
+	private void checkLowerValue() {
+		if (lowerValue < minimum) {
+			lowerValue = minimum;
+		} else if (lowerValue > (upperValue-thumbWidth)) {
+			lowerValue = (upperValue-thumbWidth);
+		}
+	}
+
+	private void checkUpperValue() {
+		if (upperValue > maximum) {
+			upperValue = maximum;
+		} else if (upperValue < (lowerValue+thumbWidth)) {
+			upperValue = lowerValue+thumbWidth;
+		}
+	}
+
+	private float computePixelSizeForSlider() {
+		return (getClientArea().width - 2.0f*markerWidth) / (maximum - minimum);
+	}
+
+	private void drawWidget(final PaintEvent e) {
+		final Rectangle rect = getClientArea();
+		if (rect.width == 0 || rect.height == 0) {
+			return;
+		}
+		e.gc.setAdvanced(true);
+		e.gc.setAntialias(SWT.ON);
+		drawBackground(e.gc);
+		if (lowerHover || (selectedElement & LOWER) != 0) {
+			coordUpper = drawMarker(e.gc, upperValue, true);
+			coordLower = drawMarker(e.gc, lowerValue, false);
+		} else {
+			coordLower = drawMarker(e.gc, lowerValue, false);
+			coordUpper = drawMarker(e.gc, upperValue, true);
+		}
+	}
+
+	private void drawBackground(final GC gc) {
+		final Rectangle clientArea = getClientArea();
+		gc.setBackground(getBackground());
+		gc.fillRectangle(clientArea);
+		if (isEnabled()) {
+			gc.setForeground(getForeground());
+		} else {
+			gc.setForeground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
+		}
+		gc.drawRoundRectangle(markerWidth, minHeight/3, clientArea.width - 2*markerWidth, clientArea.height -  2*minHeight/3, 3, 3);
+
+		final float pixelSize = computePixelSizeForSlider();
+		final int startX = (int) (pixelSize * lowerValue);
+		final int endX = (int) (pixelSize * upperValue);
+		if (isEnabled()) {
+			gc.setBackground(getForeground());
+		} else {
+			gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_GRAY));
+		}
+		gc.fillRectangle(markerWidth+startX, minHeight/3, endX - startX, clientArea.height - 2*minHeight/3);
+
+	}
+
+	private Point drawMarker(final GC gc, final int value, final boolean upper) {
+		final float pixelSize = computePixelSizeForSlider();
+		int x = (int) (pixelSize * value);
+		final int idx = upper?1:0;
+		Image image;
+		if (upper) {
+			if (upperHover) {
+				image = (selectedElement & UPPER) != 0 ? sliderDrag[idx] : sliderHover[idx];
+			} else {
+				image = slider[idx];
+			}
+		} else {
+			if (lowerHover) {
+				image = (selectedElement & LOWER) != 0 ? sliderDrag[idx] : sliderHover[idx];
+			} else {
+				image = slider[idx];
+			}
+		}
+		if(upper)
+			x+=slider[idx].getBounds().width;
+		if (isEnabled()) {
+			gc.drawImage(image, x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+		} else {
+			final Image temp = new Image(getDisplay(), image, SWT.IMAGE_DISABLE);
+			gc.drawImage(temp, x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+			temp.dispose();
+		}
+		return new Point(x, getClientArea().height / 2 - slider[idx].getBounds().height / 2);
+	}
+
+	private void moveCursorPosition(int xDelta, int yDelta) {
+		final Point cursorPosition = getDisplay().getCursorLocation();
+		cursorPosition.x += xDelta;
+		cursorPosition.y += yDelta;
+		getDisplay().setCursorLocation(cursorPosition);
+	}
+
+	private void handleKeyDown(final Event event) {
+		int accelerator = (event.stateMask & SWT.SHIFT) != 0 ? 10 : (event.stateMask & SWT.CTRL) != 0 ? 2 : 1;
+		if (selectedElement != NONE) {
+			switch (event.keyCode) {
+			case SWT.ESC:
+				startDragPoint = null;
+				upperValue = startDragUpperValue;
+				lowerValue = startDragLowerValue;
+				validateNewValues(event);
+				selectedElement = NONE;
+				if (!isOn) {
+					redraw();
+				}
+				event.doit = false;
+				break;
+			case SWT.ARROW_UP:
+				accelerator = -accelerator;
+			case SWT.ARROW_LEFT:
+				moveCursorPosition(-accelerator, 0);
+				event.doit = false;
+				break;
+			case SWT.ARROW_DOWN:
+				accelerator = -accelerator;
+			case SWT.ARROW_RIGHT:
+				moveCursorPosition(accelerator, 0);
+				event.doit = false;
+				break;
+			}
+			return;
+		}
+		previousLowerValue = lowerValue;
+		previousUpperValue = upperValue;
+
+		switch (event.keyCode) {
+		case SWT.HOME:
+			if ((event.stateMask & (SWT.SHIFT| SWT.CTRL)) == 0) {
+				upperValue = minimum + upperValue - lowerValue;
+				lowerValue = minimum;
+			}
+			break;
+		case SWT.END:
+			if ((event.stateMask & (SWT.SHIFT| SWT.CTRL)) == 0) {
+				lowerValue = maximum - (upperValue - lowerValue);
+				upperValue = maximum;
+			}
+			break;
+		case SWT.PAGE_UP:
+			translateValues(-accelerator * pageIncrement);
+			break;
+		case SWT.PAGE_DOWN:
+			translateValues( accelerator * pageIncrement);
+			break;
+		case SWT.ARROW_DOWN:
+		case SWT.ARROW_RIGHT:
+			translateValues( accelerator * increment);
+			break;
+		case SWT.ARROW_UP:
+		case SWT.ARROW_LEFT:
+			translateValues(-accelerator * increment);
+			break;
+		}
+		if (previousLowerValue != lowerValue || previousUpperValue != upperValue) {
+			checkLowerValue();
+			checkUpperValue();
+			validateNewValues(event);
+		}
+	}
+
+	private void translateValues(int amount) {
+		int newLower = lowerValue + amount;
+		int newUpper = upperValue + amount;
+		if (newUpper > maximum) {
+			newUpper = maximum;
+			newLower = maximum - (upperValue - lowerValue);
+		} else if (newLower < minimum) {
+			newLower = minimum;
+			newUpper = minimum + upperValue - lowerValue;
+		}
+		upperValue = newUpper;
+		lowerValue = newLower;
+	}
+
+	public void addSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.addSelectionListener(this, listener);
+	}
+
+	public void removeSelectionListener(final SelectionListener listener) {
+		checkWidget();
+		SelectionListenerUtil.removeSelectionListener(this, listener);
+	}
+
+	@Override
+	public Point computeSize(final int wHint, final int hHint, final boolean changed) {
+		checkWidget();
+		final int width = Math.max(2*markerWidth+100, wHint);
+		final int height = Math.max(minHeight, hHint);
+		return new Point(width, height);
+	}
+
+	public int[] getSelection() {
+		checkWidget();
+		return new int[] {lowerValue, upperValue};
+	}
+
+	public int getIncrement() {
+		checkWidget();
+		return increment;
+	}
+
+	public int getMaximum() {
+		checkWidget();
+		return maximum;
+	}
+
+	public int getMinimum() {
+		checkWidget();
+		return minimum;
+	}
+
+	public int getPageIncrement() {
+		checkWidget();
+		return pageIncrement;
+	}
+
+	public void setMaximum(final int value) {
+		setLimits(minimum, value);
+	}
+
+	public void setMinimum(final int value) {
+		setLimits(value, maximum);
+	}
+
+	public void setLimits(final int min, final int max) {
+		checkWidget();
+		if (min >= 0 && min < max && (min != minimum || max != maximum)) {
+			minimum = min;
+			maximum = max;
+			if (lowerValue < minimum) {
+				lowerValue = minimum;
+			} else if (lowerValue > maximum) {
+				lowerValue = maximum;
+			}
+			if (upperValue < minimum) {
+				upperValue = minimum;
+			} else if (upperValue > maximum) {
+				upperValue = maximum;
+			}
+			redraw();
+		}
+	}
+
+	public int getUpperValue() {
+		checkWidget();
+		return upperValue;
+	}
+
+	public void setUpperValue(final int value) {
+		setValues(lowerValue, value);
+	}
+
+	public int getLowerValue() {
+		checkWidget();
+		return lowerValue;
+	}
+
+	public void setLowerValue(final int value) {
+		setValues(value, upperValue);
+	}
+
+	public void setValues(final int[] values) {
+		if (values.length == 2) {
+			setValues(values[0], values[1]);
+		}
+	}
+
+	public void setValues(final int lowerValue, final int upperValue) {
+		setValues(lowerValue, upperValue, false);
+	}
+
+	public void setValues(final int lowerValue, final int upperValue, boolean update) {
+		checkWidget();
+		if (lowerValue <= upperValue && lowerValue >= minimum && upperValue <= maximum && (this.lowerValue != lowerValue || this.upperValue != upperValue)) {
+			this.lowerValue = lowerValue;
+			this.upperValue = upperValue;
+			if(update) {
+				Event e = new Event();
+				e.type=SWT.Selection;
+				e.doit=true;
+				validateNewValues(e);			
+			} else {
+				increment = Math.max(1,  (upperValue-lowerValue)/100);
+				pageIncrement = Math.max(1, (upperValue-lowerValue)/2);
+			}
+			redraw();
+		}
+	}
+}

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

@@ -0,0 +1,48 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class ReflectionUtils {
+	/**
+	 * Call a method using introspection (so ones can call a private or protected method)
+	 * @param object object on which the method will be called
+	 * @param methodName method name
+	 * @param args arguments of this method (can be null)
+	 * @return the value returned by this method (if this method returns a value)
+	 */
+	public static Object callMethod(final Object object, final String methodName, final Object... args) {
+		if (object == null) {
+			return null;
+		}
+		final Class<?>[] array = new Class<?>[args == null ? 0 : args.length];
+		int index = 0;
+		if (args != null) {
+			for (final Object o : args) {
+				array[index++] = o == null ? Object.class : o.getClass();
+			}
+		}
+
+		return callMethodWithClassType(object, methodName, array, args);
+	}
+
+	private static Object callMethodWithClassType(final Object object, final String methodName, final Class<?>[] array, final Object... args) {
+		Class<?> currentClass = object.getClass();
+		Method method = null;
+		while (currentClass != null) {
+			try {
+				method = currentClass.getDeclaredMethod(methodName, array);
+				break;
+			} catch (final NoSuchMethodException nsme) {
+				currentClass = currentClass.getSuperclass();
+			}
+		}
+
+		try {
+			method.setAccessible(true);
+			return method.invoke(object, args);
+		} catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+			e.printStackTrace();
+			return null;
+		}
+	}
+}

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

@@ -0,0 +1,74 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.TypedListener;
+
+public class SelectionListenerUtil {
+	/**
+	 * Add a <code>SelectionListener</code> to a given Control
+	 * 
+	 * @param control control on which the selection listener is added
+	 * @param listener listener to add
+	 */
+	public static void addSelectionListener(final Control control, final SelectionListener listener) {
+		if (listener == null) {
+			SWT.error(SWT.ERROR_NULL_ARGUMENT);
+		}
+		TypedListener typedListener = new TypedListener(listener);
+		control.addListener(SWT.Selection, typedListener);
+	}
+
+	/**
+	 * Remove a <code>SelectionListener</code> of a given Control
+	 * 
+	 * @param control control on which the selection listener is removed
+	 * @param listener listener to remove
+	 */
+	public static void removeSelectionListener(final Control control, final SelectionListener listener) {
+		if (listener == null) {
+			SWT.error(SWT.ERROR_NULL_ARGUMENT);
+		}
+		final Listener[] listeners = control.getListeners(SWT.Selection);
+		for (Listener l : listeners) {
+			if (l instanceof TypedListener) {
+				TypedListener typedListener = (TypedListener) l;
+				if (typedListener.getEventListener() == listener) {
+					ReflectionUtils.callMethod(control, "removeListener", SWT.Selection, ((TypedListener) l).getEventListener());
+					return;
+				}
+			}
+		}
+	}
+
+	/**
+	 * Fire the selection listeners of a given control
+	 *
+	 * @param control the control that fires the event
+	 * @param sourceEvent mouse event
+	 * @return true if the selection could be changed, false otherwise
+	 */
+	public static boolean fireSelectionListeners(final Control control, final Event sourceEvent) {
+		for (final Listener listener : control.getListeners(SWT.Selection)) {
+			final Event event = new Event();
+
+			event.button = sourceEvent==null?1:sourceEvent.button;
+			event.display = control.getDisplay();
+			event.item = null;
+			event.widget = control;
+			event.data = sourceEvent == null ? null : sourceEvent.data;
+			event.time = sourceEvent == null ? 0 : sourceEvent.time;
+			event.x = sourceEvent == null ? 0 : sourceEvent.x;
+			event.y = sourceEvent == null ? 0 : sourceEvent.y;
+			event.type = SWT.Selection;
+
+			listener.handleEvent(event);
+			if (!event.doit) {
+				return false;
+			}
+		}
+		return true;
+	}
+}

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

@@ -0,0 +1,127 @@
+package com.minres.scviewer.database.ui.swt.internal.slider;
+
+import java.text.Format;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.wb.swt.SWTResourceManager;
+
+public class ZoomBar extends Composite {
+	
+	static public interface IProvider {
+		ZoomBar getScrollBar();
+	}
+
+	final RangeSlider timeSlider;
+	final ImageButton leftButton;
+	final ImageButton rightButton;
+	/**
+	 * Create the composite.
+	 * @param parent
+	 * @param style
+	 */
+	public ZoomBar(Composite parent, int style) {
+		super(parent, SWT.NO_FOCUS);
+		GridLayout gridLayout = new GridLayout(3, false);
+		gridLayout.horizontalSpacing = 0;
+		gridLayout.verticalSpacing = 0;
+		gridLayout.marginWidth = 0;
+		gridLayout.marginHeight = 0;
+		setLayout(gridLayout);
+
+		leftButton = new ImageButton(this, SWT.NONE);
+		GridData gd_leftButton = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_leftButton.widthHint=14;
+		gd_leftButton.heightHint=18;
+		leftButton.setLayoutData(gd_leftButton);
+		leftButton.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_left.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_left_pressed.png")});
+		leftButton.setAutoFire(true);
+		
+		timeSlider = new RangeSlider(this, SWT.ON|SWT.HIGH|SWT.SMOOTH|SWT.CONTROL);
+		timeSlider.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
+
+		rightButton = new ImageButton(this, SWT.NONE);
+		GridData gd_rightButton = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
+		gd_rightButton.widthHint=18;
+		gd_rightButton.heightHint=18;
+		rightButton.setLayoutData(gd_rightButton);
+		rightButton.setImage(new Image[] {
+				SWTResourceManager.getImage(this.getClass(), "arrow_right.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_hover.png"),
+				SWTResourceManager.getImage(this.getClass(), "arrow_right_pressed.png")});
+		rightButton.setAutoFire(true);
+		
+		leftButton.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int incr=timeSlider.getIncrement();
+				int lower = Math.max(timeSlider.getMinimum(), value[0]-incr);
+				timeSlider.setValues(lower, lower + (value[1]-value[0]), true);
+			}
+		});
+		rightButton.addSelectionListener(new SelectionAdapter() {
+			@Override
+			public void widgetSelected(SelectionEvent e) {
+				int[] value = timeSlider.getSelection();
+				int incr=timeSlider.getIncrement();
+				int upper = Math.min(timeSlider.getMaximum(), value[1]+incr);
+				timeSlider.setValues(upper - (value[1]-value[0]), upper, true);
+			}
+		});
+
+	}
+	@Override
+	public void setEnabled (boolean enabled) {
+		timeSlider.setEnabled(enabled);
+		leftButton.setEnabled(enabled);
+		rightButton.setEnabled(enabled);
+		super.setEnabled(enabled);
+		redraw();
+	}
+	public void setButtonsEnabled (boolean enabled) {
+		leftButton.setEnabled(enabled);
+		rightButton.setEnabled(enabled);
+		redraw();
+	}
+	public void setToolTipFormatter(Format formatter){
+		timeSlider.setToolTipFormatter(formatter);
+	}
+	public void setToolTipText(String string) {
+		timeSlider.setToolTipText(string);
+	}
+	public void setSelection(int sel) {
+		timeSlider.setLowerValue(sel);
+	}
+	public void setSelection(int[] sel) {
+		assert(sel.length==2);
+		timeSlider.setValues(sel[0], sel[1]);
+	}
+	public int[] getSelection() {
+		return timeSlider.getSelection();
+	}
+	public void addSelectionListener(SelectionListener selectionListener) {
+		timeSlider.addSelectionListener(selectionListener);	
+	}
+	public void setMinimum(int value) {
+		timeSlider.setMinimum(value);	
+	}
+	public void setMaximum(int value) {
+		timeSlider.setMaximum(value);	
+	}
+	public int getMaximum() {
+		return timeSlider.getMaximum();
+	}
+	public int getMinimum() {
+		return timeSlider.getMinimum();
+	}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ActionScheduler.java

@@ -0,0 +1,18 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Display;
+
+public class ActionScheduler {
+
+  private final Display display;
+  private final Runnable action;
+
+  public ActionScheduler( Display display, Runnable action ) {
+    this.display = display;
+    this.action = action;
+  }
+
+  public void schedule( int delay ) {
+    display.timerExec( delay, action );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ButtonClick.java

@@ -0,0 +1,45 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Control;
+
+public class ButtonClick {
+
+  public static final int LEFT_BUTTON = 1;
+
+  private boolean armed;
+
+  public boolean isArmed() {
+    return armed;
+  }
+
+  public void arm( MouseEvent event ) {
+    if( event.button == LEFT_BUTTON ) {
+      armed = true;
+    }
+  }
+
+  public void disarm() {
+    armed = false;
+  }
+
+  public void trigger( MouseEvent event, Runnable action ) {
+    try {
+      doTrigger( event, action );
+    } finally {
+      disarm();
+    }
+  }
+
+  private void doTrigger( MouseEvent event, Runnable action ) {
+    if( armed && inRange( event ) ) {
+      action.run();
+    }
+  }
+
+  private static boolean inRange( MouseEvent event ) {
+    Point size = ( ( Control )event.widget ).getSize();
+    return event.x >= 0 && event.x <= size.x && event.y >= 0 && event.y <= size.y;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ClickControl.java

@@ -0,0 +1,98 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.events.MouseTrackListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+
+
+class ClickControl extends ControlAdapter implements ViewComponent, MouseDownActionTimer.TimerAction, MouseListener, MouseTrackListener {
+
+  private final MouseDownActionTimer mouseDownActionTimer;
+  private final ClickAction clickAction;
+  private final ButtonClick buttonClick;
+  private final Label control;
+  private final ImageUpdate imageUpdate;
+
+  public interface ClickAction extends Runnable {
+    void setCoordinates( int x, int y );
+  }
+
+  ClickControl( Composite parent, ClickAction clickAction, int maxExtension  ) {
+    this.control = new Label( parent, SWT.NONE );
+    this.imageUpdate = new ImageUpdate( control, maxExtension );
+    this.buttonClick = new ButtonClick();
+    this.mouseDownActionTimer = new MouseDownActionTimer( this, buttonClick, control.getDisplay() );
+    this.clickAction = clickAction;
+    this.control.addMouseTrackListener( this );
+    this.control.addMouseListener( this );
+    this.control.addControlListener( this );
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    imageUpdate.update();
+  }
+
+  @Override
+  public Label getControl() {
+    return control;
+  }
+
+  @Override
+  public void mouseDown( MouseEvent event ) {
+    buttonClick.arm( event );
+    clickAction.setCoordinates( event.x, event.y );
+    mouseDownActionTimer.activate();
+  }
+
+  @Override
+  public void mouseUp( MouseEvent event ) {
+    buttonClick.trigger( event, clickAction );
+  }
+
+  @Override
+  public void run() {
+    clickAction.run();
+  }
+
+  @Override
+  public boolean isEnabled() {
+    return true;
+  }
+
+  @Override
+  public void mouseExit( MouseEvent event ) {
+    buttonClick.disarm();
+  }
+
+  void setForeground( Color color ) {
+    imageUpdate.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageUpdate.getForeground();
+  }
+
+  void setBackground( Color color ) {
+    imageUpdate.setBackground( color );
+  }
+
+  Color getBackground() {
+    return imageUpdate.getBackground();
+  }
+
+  @Override
+  public void mouseEnter( MouseEvent event ) {}
+
+  @Override
+  public void mouseHover( MouseEvent event ) {}
+
+  @Override
+  public void mouseDoubleClick( MouseEvent event ) {}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ComponentDistribution.java

@@ -0,0 +1,105 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static java.lang.Math.max;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
+class ComponentDistribution {
+
+  private static final int MIN_DRAG_LENGTH = 17;
+
+  final int upFastLength;
+  final int dragStart;
+  final int dragLength;
+  final int downFastStart;
+  final int downFastLength;
+  final int downStart;
+  final int buttonLen;
+
+  ComponentDistribution( int buttonLen, int len, int range, int pos, int thumb ) {
+    int slideLen = slideLen( buttonLen, len );
+    int relDragLen = relDragLen( slideLen, range, thumb );
+    int minDragLength = max( MIN_DRAG_LENGTH, buttonLen );
+    int interval = interval( range, relDragLen, minDragLength );
+    this.dragLength = dragLen( minDragLength, relDragLen );
+    this.upFastLength = upFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength );
+    this.downStart = downStart( buttonLen, len );
+    this.downFastStart = downFastStart( buttonLen, upFastLength, dragLength );
+    this.dragStart = dragStart( buttonLen, upFastLength );
+    this.downFastLength = downFastLen( minDragLength, interval, pos, slideLen, relDragLen, dragLength, upFastLength );
+    this.buttonLen = buttonLen;
+  }
+
+  private static int slideLen( int buttonLen, int len ) {
+    return len - buttonLen * 2;
+  }
+
+  private static int relDragLen( int slideLen, int range, int thumb ) {
+    return divide( slideLen * thumb, range );
+  }
+
+  private static int interval( int range, int relDragLen, int minDragLength ) {
+    int result = range;
+    if( useMinDragLen( minDragLength, relDragLen ) ) {
+      result += minDragLength - relDragLen / 2;
+    }
+    return result;
+  }
+
+  private static int dragLen( int buttonLen, int relDragLen   ) {
+    return max( relDragLen, buttonLen );
+  }
+
+  private static int upFastLen( int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen ) {
+    int result = slideLen * pos / range;
+    if( useMinDragLen( buttonLen, relDragLen ) ) {
+      result -= divide( ( dragLen - relDragLen ) * pos, range );
+    }
+    return result;
+  }
+
+  private static int downStart( int buttonLen, int len ) {
+    return len - buttonLen;
+  }
+
+  private static int downFastStart( int buttonLen, int upFastLength, int dragLength ) {
+    return buttonLen + upFastLength + dragLength;
+  }
+
+  private static int dragStart( int buttonLen, int upFastLen ) {
+    return buttonLen + upFastLen;
+  }
+
+  private static int downFastLen(
+    int buttonLen, int range, int pos, int slideLen, int relDragLen, int dragLen, int upFastLen )
+  {
+    int result = divide( slideLen * ( range - pos ), range ) - dragLen;
+    if( useMinDragLen( buttonLen, relDragLen ) ) {
+      result += divide( ( dragLen - relDragLen ) * pos, range );
+    }
+    return adjustDownFastLen( result, slideLen, dragLen, upFastLen );
+  }
+
+  private static boolean useMinDragLen( int buttonLen, int relDragLen ) {
+    return relDragLen < buttonLen;
+  }
+
+  static int divide( int dividend, int divisor ) {
+    BigDecimal bigDividend = new BigDecimal( dividend );
+    BigDecimal bigDivisor = new BigDecimal( divisor );
+    return bigDividend .divide( bigDivisor, 0, RoundingMode.HALF_EVEN ) .intValue();
+  }
+
+  private static int adjustDownFastLen( int tentative, int slideLen, int dragLen, int upFastLen ) {
+    // TODO [fappel]: Without this there is a flickering of the downFast label of one pixel.
+    //                Check whether this can be resolved by better rounding or whatsoever.
+    int result = tentative;
+    if( slideLen < upFastLen + dragLen + result ) {
+      result--;
+    } else if( slideLen > upFastLen + dragLen + result ) {
+      result++;
+    }
+    return result;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Decrementer.java

@@ -0,0 +1,24 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class Decrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  Decrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    int selection = scrollBar.getSelection() - scrollBar.getIncrement();
+    scrollBar.setSelectionInternal( selection, SWT.ARROW_UP );
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Direction.java

@@ -0,0 +1,203 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.FlatScrollBar.BAR_BREADTH;
+import static java.lang.Math.max;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+enum Direction {
+
+  HORIZONTAL( SWT.HORIZONTAL ) {
+
+    @Override
+    protected void layout( FlatScrollBar scrollBar, int buttonLength  ) {
+      ComponentDistribution distribution = calculateComponentDistribution( scrollBar, buttonLength );
+      Rectangle[] componentBounds = calculateComponentBounds( distribution, scrollBar );
+      applyComponentBounds( scrollBar, componentBounds );
+    }
+
+    private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength  ) {
+      return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).width );
+    }
+
+    private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
+      int width = getControlBounds( scrollBar ).width;
+      int height = getControlBounds( scrollBar ).height - FlatScrollBar.BAR_BREADTH + 1;
+      int balance = getRoundingBalance( distribution, scrollBar );
+      return new Rectangle[] {
+        calcButtons( distribution, width, $( 0, CLEARANCE, distribution.buttonLen, height ) ),
+        $( distribution.buttonLen, CLEARANCE, distribution.upFastLength, height ),
+        calcDrag( distribution, $( distribution.dragStart, CLEARANCE, distribution.dragLength + balance, height ) ),
+        $( distribution.downFastStart, CLEARANCE, distribution.downFastLength - balance, height ),
+        calcButtons( distribution, width, $( distribution.downStart, CLEARANCE, distribution.buttonLen, height ) )
+      };
+    }
+
+    private Rectangle calcButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
+      Rectangle result = bounds;
+      if( length <= distribution.buttonLen* 2 ) {
+        int downStart = calcDownStartForSmallLength( bounds.x, length );
+        result = $( downStart, CLEARANCE, length / 2, bounds.height );
+      }
+      return result;
+    }
+
+    @Override
+    protected void setDefaultSize( Control control ) {
+      Point size = control.getSize();
+      control.setSize( size.x, FlatScrollBar.BAR_BREADTH );
+    }
+
+    @Override
+    protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
+      int x = wHint == SWT.DEFAULT ? composite.getParent().getClientArea().width : wHint;
+      return new Point( x, FlatScrollBar.BAR_BREADTH );
+    }
+
+    @Override
+    protected void expand( Control control, int maxExpansion ) {
+      Rectangle bounds = control.getBounds();
+      int expand = expand( bounds.height, maxExpansion );
+      control.setBounds( bounds.x, bounds.y - expand, bounds.width, bounds.height + expand );
+    }
+  },
+
+  VERTICAL( SWT.VERTICAL ) {
+
+    @Override
+    protected void layout( FlatScrollBar scrollBar, int buttonLength ) {
+      ComponentDistribution calculation = calculateComponentDistribution( scrollBar, buttonLength );
+      applyComponentBounds( scrollBar, calculateComponentBounds( calculation, scrollBar ) );
+    }
+
+    private ComponentDistribution calculateComponentDistribution( FlatScrollBar scrollBar, int buttonLength ) {
+      return calculateComponentDistribution( scrollBar, buttonLength, getControlBounds( scrollBar ).height );
+    }
+
+    private Rectangle[] calculateComponentBounds( ComponentDistribution distribution, FlatScrollBar scrollBar ) {
+      int width = getControlBounds( scrollBar ).width - FlatScrollBar.BAR_BREADTH + 1;
+      int height = getControlBounds( scrollBar ).height;
+      int balance = getRoundingBalance( distribution, scrollBar );
+      return new Rectangle[] {
+        calculateButtons( distribution, height, $( CLEARANCE, 0, width, distribution.buttonLen ) ),
+        $( CLEARANCE, distribution.buttonLen, width, distribution.upFastLength ),
+        calcDrag( distribution, $( CLEARANCE, distribution.dragStart, width, distribution.dragLength + balance ) ),
+        $( CLEARANCE, distribution.downFastStart, width, distribution.downFastLength - balance ),
+        calculateButtons( distribution, height, $( CLEARANCE, distribution.downStart, width, distribution.buttonLen ) )
+      };
+    }
+
+    private Rectangle calculateButtons( ComponentDistribution distribution, int length, Rectangle bounds ) {
+      Rectangle result = bounds;
+      if( length <= distribution.buttonLen * 2 ) {
+        int downStart = calcDownStartForSmallLength( bounds.y, length );
+        result = $( CLEARANCE, downStart, bounds.width, length / 2 );
+      }
+      return result;
+    }
+
+    @Override
+    protected void setDefaultSize( Control control ) {
+      Point size = control.getSize();
+      control.setSize( FlatScrollBar.BAR_BREADTH, size.y );
+    }
+
+    @Override
+    protected Point computeSize( Composite composite, int wHint, int hHint, boolean changed ) {
+      int y = hHint == SWT.DEFAULT ? composite.getParent().getClientArea().height : hHint;
+      return new Point( FlatScrollBar.BAR_BREADTH, y );
+    }
+
+    @Override
+    protected void expand( Control control, int maxExpansion ) {
+      Rectangle bounds = control.getBounds();
+      int expand = expand( bounds.width, maxExpansion );
+      control.setBounds( bounds.x - expand, bounds.y, bounds.width + expand, bounds.height );
+    }
+  };
+
+  static final Rectangle EMPTY_RECTANGLE = $( 0, 0, 0, 0 );
+  static final int CLEARANCE = BAR_BREADTH - 2;
+
+  private final int value;
+
+  protected abstract void layout( FlatScrollBar scrollBar, int buttonLength );
+  protected abstract void setDefaultSize( Control control );
+  protected abstract Point computeSize( Composite comp, int wHint, int hHint, boolean changed );
+  protected abstract void expand( Control control, int maxExpansion  );
+
+  Direction( int value ) {
+    this.value = value;
+  }
+
+  public int value() {
+    return value;
+  }
+
+  private static ComponentDistribution calculateComponentDistribution(
+    FlatScrollBar scrollBar , int buttonLength , int length  )
+  {
+    int range = scrollBar.getMaximum() - scrollBar.getMinimum();
+    int position = scrollBar.getSelection() - scrollBar.getMinimum();
+    int thumb = scrollBar.getThumb();
+    return new ComponentDistribution( buttonLength, length, range, position, thumb );
+  }
+
+  private static Rectangle getControlBounds( FlatScrollBar scrollBar ) {
+    return scrollBar.getClientArea();
+  }
+
+  private static void applyComponentBounds( FlatScrollBar scrollBar, Rectangle[] bounds ) {
+    scrollBar.up.getControl().setBounds( bounds[ 0 ] );
+    scrollBar.upFast.getControl().setBounds( bounds[ 1 ] );
+    scrollBar.drag.getControl().setBounds( bounds[ 2 ] );
+    scrollBar.downFast.getControl().setBounds( bounds[ 3 ] );
+    scrollBar.down.getControl().setBounds( bounds[ 4 ] );
+  }
+
+  // TODO [fappel]: There is a 1 pixel rounding problem at the seam of drag/downFast with down.
+  //                Seems to work but I would prefer a better solution if possible
+  private static int getRoundingBalance( ComponentDistribution calculation, FlatScrollBar scrollBar ) {
+    int result = 0;
+    int maximumSelection = scrollBar.getMaximum() - scrollBar.getThumb();
+    if( scrollBar.getSelection() == maximumSelection && 0 != calculation.downFastLength ) {
+      result = 1;
+    }
+    return result;
+  }
+
+  private static int expand( int toExpand, int maxExpansion ) {
+    return max( 0, FlatScrollBar.BAR_BREADTH + maxExpansion - max( FlatScrollBar.BAR_BREADTH, toExpand ) );
+  }
+
+  private static Rectangle calcDrag( ComponentDistribution distribution, Rectangle bounds ) {
+    Rectangle result = bounds;
+    if( isUndercutOfDragVisibility( distribution ) ) {
+      result = EMPTY_RECTANGLE;
+    }
+    return result;
+  }
+
+  private static boolean isUndercutOfDragVisibility( ComponentDistribution distribution ) {
+    return distribution.dragLength + distribution.buttonLen >= distribution.downStart;
+  }
+
+  private static int calcDownStartForSmallLength( int position, int length ) {
+    int result = position;
+    if( isDownStartPosition( position ) ) {
+      result = length / 2;
+    }
+    return result;
+  }
+  private static boolean isDownStartPosition( int position ) {
+    return position > 0 || position < 0;
+  }
+
+  private static Rectangle $( int x, int y, int width, int height ) {
+    return new Rectangle( x, y , width , height );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragControl.java

@@ -0,0 +1,105 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.DragDetectEvent;
+import org.eclipse.swt.events.DragDetectListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.events.MouseMoveListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+
+
+class DragControl
+  extends ControlAdapter
+  implements ViewComponent, DragDetectListener, MouseListener, MouseMoveListener
+{
+
+  private final DragDetector dragDetector;
+  private final ImageUpdate imageUpdate;
+  private final DragAction dragAction;
+  private final Label control;
+
+  private Point startingPosition;
+
+  public interface DragAction {
+    void start();
+    void run( int startX, int startY, int currentX, int currentY );
+    void end();
+  }
+
+  DragControl( Composite parent, DragAction dragAction, int maxExpansion ) {
+    this.control = new Label( parent, SWT.NONE );
+    this.imageUpdate = new ImageUpdate( control, maxExpansion );
+    this.dragDetector = new DragDetector( control, 0 );
+    this.dragAction = dragAction;
+    initializeControl();
+  }
+
+  @Override
+  public Label getControl() {
+    return control;
+  }
+
+  @Override
+  public void dragDetected( DragDetectEvent event ) {
+    if( startingPosition != null ) {
+      dragAction.run( startingPosition.x, startingPosition.y, event.x, event.y );
+    }
+    dragDetector.dragHandled();
+  }
+
+  @Override
+  public void mouseDown( MouseEvent event ) {
+    startingPosition = new Point( event.x, event.y );
+    dragAction.start();
+  }
+
+  @Override
+  public void mouseUp( MouseEvent event ) {
+    if( startingPosition != null ) {
+      dragAction.end();
+    }
+    startingPosition = null;
+  }
+
+  @Override
+  public void mouseMove( MouseEvent event ) {
+    dragDetector.mouseMove( event );
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    imageUpdate.update();
+  }
+
+  void setForeground( Color color ) {
+    imageUpdate.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageUpdate.getForeground();
+  }
+
+  Color getBackground() {
+    return imageUpdate.getBackground();
+  }
+
+  void setBackground( Color color ) {
+    imageUpdate.setBackground( color );
+  }
+
+  private void initializeControl( ) {
+    control.addMouseListener( this );
+    control.addMouseMoveListener( this );
+    control.addControlListener( this );
+    control.addDragDetectListener( this );
+  }
+
+  @Override
+  public void mouseDoubleClick( MouseEvent event ) {}
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragDetector.java

@@ -0,0 +1,60 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+
+// TODO [fappel]: This is a workaround for a problem described here:
+// http://stackoverflow.com/questions/3908290/mousedown-events-are-not-delivered-until-mouseup-when-a-drag-source-is-present
+// This seems to be related to https://bugs.eclipse.org/bugs/show_bug.cgi?id=328396
+// which is resolved. As it did not work on my setup I adapted the workaround of the last
+// stackoverflow answer.
+
+public class DragDetector {
+
+  int lastMouseX;
+  int lastMouseY;
+  boolean dragEventGenerated;
+
+  private final Control control;
+  private final int sensibility;
+
+  public DragDetector( Control control, int sensibility ) {
+    this.control = control;
+    this.sensibility = sensibility;
+    this.control.setDragDetect( false );
+  }
+
+  public void mouseMove( MouseEvent e ) {
+    if( ( e.stateMask & SWT.BUTTON1 ) > 0 ) {
+      int deltaX = lastMouseX - e.x;
+      int deltaY = lastMouseY - e.y;
+      int dragDistance = deltaX * deltaX + deltaY * deltaY;
+      if( !dragEventGenerated && dragDistance > sensibility ) {
+        dragEventGenerated = true;
+        Event event = createDragEvent( e );
+        control.notifyListeners( SWT.DragDetect, event );
+      }
+      lastMouseX = e.x;
+      lastMouseY = e.y;
+    }
+  }
+
+  public void dragHandled() {
+    dragEventGenerated = false;
+  }
+
+  private Event createDragEvent( MouseEvent e ) {
+    Event event = new Event();
+    event.type = SWT.DragDetect;
+    event.display = control.getDisplay();
+    event.widget = control;
+    event.button = e.button;
+    event.stateMask = e.stateMask;
+    event.time = e.time;
+    event.x = e.x;
+    event.y = e.y;
+    return event;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/DragShifter.java

@@ -0,0 +1,59 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
+import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+
+import com.minres.scviewer.database.ui.swt.sb.DragControl.DragAction;
+
+final class DragShifter implements DragAction {
+
+  private final FlatScrollBar scrollBar;
+  private final int buttonLength;
+
+  public DragShifter( FlatScrollBar scrollBar, int buttonLength ) {
+    this.scrollBar = scrollBar;
+    this.buttonLength = buttonLength;
+  }
+
+  @Override
+  public void start() {
+    scrollBar.notifyListeners( SWT.DRAG );
+  }
+
+  @Override
+  public void run( int startX, int startY, int currentX, int currentY ) {
+    ShiftData shiftData = newShiftData( startX, startY, currentX, currentY );
+    if( shiftData.canShift() ) {
+      int selectionRange = calculateSelectionRange( scrollBar );
+      int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
+      int selection = scrollBar.getSelection() + selectionDelta;
+      scrollBar.setSelectionInternal( selection, SWT.DRAG );
+    }
+  }
+
+  @Override
+  public void end() {
+    scrollBar.notifyListeners( SWT.NONE );
+  }
+
+  private ShiftData newShiftData( int startX, int startY, int currentX, int currentY ) {
+    ShiftData result;
+    if( scrollBar.direction == HORIZONTAL ) {
+      result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, currentX - startX );
+    } else {
+      result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, currentY - startY );
+    }
+    return result;
+  }
+
+  private Point getScrollBarSize() {
+    return scrollBar.getSize();
+  }
+
+  private Point getDragSize() {
+    return scrollBar.drag.getControl().getSize();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastDecrementer.java

@@ -0,0 +1,49 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class FastDecrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  private int x;
+  private int y;
+
+  FastDecrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    Rectangle drag = getDragBounds();
+    Point mouse = getMouseLocation();
+    if( mouse.x <= drag.x || mouse.y <= drag.y ) {
+      int selection = scrollBar.getSelection() - scrollBar.getPageIncrement();
+      scrollBar.setSelectionInternal( selection, SWT.PAGE_UP );
+    }
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+    this.x = x;
+    this.y = y;
+  }
+
+  private Point getMouseLocation() {
+    return getDisplay().map( scrollBar.upFast.getControl(), null, x, y );
+  }
+
+  private Rectangle getDragBounds() {
+    Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
+    return getDisplay().map( scrollBar, null, dragBounds );
+  }
+
+  private Display getDisplay() {
+    return scrollBar.getDisplay();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FastIncrementer.java

@@ -0,0 +1,42 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class FastIncrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  private Point mouse;
+
+  FastIncrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    Rectangle drag = getDragBounds();
+    if( mouse.x > drag.x + drag.width || mouse.y > drag.y + drag.height ) {
+      int selection = scrollBar.getSelection() + scrollBar.getPageIncrement();
+      scrollBar.setSelectionInternal( selection, SWT.PAGE_DOWN );
+    }
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+    mouse = getMouseLocation( x, y );
+  }
+
+  private Point getMouseLocation(int x, int y) {
+    return Display.getCurrent().map( scrollBar.downFast.getControl(), null, x, y );
+  }
+
+  private Rectangle getDragBounds() {
+    Rectangle dragBounds = scrollBar.drag.getControl().getBounds();
+    return Display.getCurrent().map( scrollBar, null, dragBounds );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBar.java

@@ -0,0 +1,295 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.UntypedSelectionAdapter.lookup;
+
+import java.util.Collection;
+import java.util.HashSet;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Layout;
+import org.eclipse.swt.widgets.Listener;
+
+public class FlatScrollBar extends Composite {
+
+  public static final int BAR_BREADTH = 6;
+
+  static final int DEFAULT_MINIMUM = 0;
+  static final int DEFAULT_MAXIMUM = 100;
+  static final int DEFAULT_INCREMENT = 1;
+  static final int DEFAULT_THUMB = 10;
+  static final int DEFAULT_PAGE_INCREMENT = DEFAULT_THUMB;
+  static final int DEFAULT_SELECTION = 0;
+  static final int DEFAULT_BUTTON_LENGTH = 0;
+  static final int DEFAULT_MAX_EXPANSION = Direction.CLEARANCE + 2;
+
+  final ClickControl up;
+  final ClickControl upFast;
+  final DragControl drag;
+  final ClickControl downFast;
+  final ClickControl down;
+  final Direction direction;
+  final MouseWheelShifter mouseWheelHandler;
+  final Collection<SelectionListener> listeners;
+
+  private int minimum;
+  private int maximum;
+  private int increment;
+  private int pageIncrement;
+  private int thumb;
+  private int selection;
+  private boolean onDrag;
+  private int buttonLength;
+
+  public FlatScrollBar( final Composite parent, int style ) {
+    this( parent, style, DEFAULT_BUTTON_LENGTH, DEFAULT_MAX_EXPANSION );
+  }
+
+  FlatScrollBar( Composite parent, int style, int buttonLength, int maxExpansion ) {
+    super( parent, SWT.NONE );
+    super.setLayout( new FlatScrollBarLayout( getDirection( style ) ) );
+    this.minimum = DEFAULT_MINIMUM;
+    this.maximum = DEFAULT_MAXIMUM;
+    this.increment = DEFAULT_INCREMENT;
+    this.pageIncrement = DEFAULT_PAGE_INCREMENT;
+    this.thumb = DEFAULT_THUMB;
+    this.selection = DEFAULT_SELECTION;
+    this.buttonLength = buttonLength;
+    this.direction = getDirection( style );
+    this.direction.setDefaultSize( this );
+    this.up = new ClickControl( this, new Decrementer( this ), maxExpansion );
+    this.upFast = new ClickControl( this, new FastDecrementer( this ), maxExpansion );
+    this.drag = new DragControl( this, new DragShifter( this, buttonLength ), maxExpansion );
+    this.downFast = new ClickControl( this, new FastIncrementer( this ), maxExpansion );
+    this.down = new ClickControl( this, new Incrementer( this ), maxExpansion );
+    this.mouseWheelHandler = new MouseWheelShifter( this, parent, buttonLength );
+    this.listeners = new HashSet<SelectionListener>();
+    addMouseTrackListener( new MouseTracker( this, maxExpansion ) );
+    addControlListener( new ResizeObserver( this ) );
+    setDefaultColorScheme();
+  }
+
+  @Override
+  public void setLayout( Layout layout ) {
+    throw new UnsupportedOperationException( FlatScrollBar.class.getName() + " does not allow to change layout." );
+  };
+
+  @Override
+  public int getStyle() {
+    return direction != null ? super.getStyle() | direction.value() : super.getStyle();
+  };
+
+  Direction getDirection() {
+    return direction;
+  }
+
+  public void setMinimum( int minimum ) {
+    if( this.minimum != minimum && minimum >= 0 && minimum < maximum ) {
+      this.minimum = minimum;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getMinimum() {
+    return minimum;
+  }
+
+  public void setMaximum( int maximum ) {
+    if( this.maximum != maximum && maximum >= 0 && maximum > minimum ) {
+      this.maximum = maximum;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getMaximum() {
+    return maximum;
+  }
+
+  public void setThumb( int thumb ) {
+    if( this.thumb != thumb && thumb >= 1 ) {
+      this.thumb = thumb;
+      adjustThumb();
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public int getThumb() {
+    return thumb;
+  }
+
+  public void setIncrement( int increment ) {
+    if( this.increment != increment ) {
+      this.increment = increment;
+      layout();
+    }
+  }
+
+  public int getIncrement() {
+    return increment;
+  }
+
+  public void setPageIncrement( int pageIncrement ) {
+    this.pageIncrement = pageIncrement;
+  }
+
+  public int getPageIncrement() {
+    return pageIncrement;
+  }
+
+  public void setSelection( int selection ) {
+    if( !onDrag ) {
+      updateSelection( selection );
+    }
+  }
+
+  public int getSelection() {
+    return selection;
+  }
+
+  public void addSelectionListener( SelectionListener selectionListener ) {
+    listeners.add( selectionListener );
+  }
+
+  public void removeSelectionListener( SelectionListener selectionListener ) {
+    listeners.remove( selectionListener );
+  }
+
+  @Override
+  public void addListener( int eventType, final Listener listener ) {
+    if( eventType == SWT.Selection ) {
+      addSelectionListener( new UntypedSelectionAdapter( listener ) );
+    } else {
+      super.addListener( eventType, listener );
+    }
+  }
+
+  @Override
+  public void removeListener( int eventType, Listener listener ) {
+    if( eventType == SWT.Selection ) {
+      removeSelectionListener( lookup( listeners, listener ) );
+    } else {
+      super.removeListener( eventType, listener );
+    }
+  }
+
+  @Override
+  public void layout() {
+    direction.layout( this, buttonLength );
+    update();
+  }
+
+  public void setIncrementButtonLength( int length ) {
+    this.buttonLength = length;
+    layout();
+  }
+
+  public int getIncrementButtonLength() {
+    return buttonLength;
+  }
+
+  public void setIncrementColor( Color color ) {
+    up.setForeground( color );
+    down.setForeground( color );
+  }
+
+  public Color getIncrementColor() {
+    return up.getForeground();
+  }
+
+  public void setPageIncrementColor( Color color ) {
+    upFast.setForeground( color );
+    downFast.setForeground( color );
+  }
+
+  public Color getPageIncrementColor() {
+    return upFast.getForeground();
+  }
+
+  public void setThumbColor( Color color ) {
+    drag.setForeground( color );
+  }
+
+  public Color getThumbColor() {
+    return drag.getForeground();
+  }
+
+  @Override
+  public void setBackground( Color color ) {
+    up.setBackground( color );
+    upFast.setBackground( color );
+    drag.setBackground( color );
+    downFast.setBackground( color );
+    down.setBackground( color );
+    super.setBackground( color );
+  }
+
+  protected void setSelectionInternal( int selection, int detail ) {
+    int oldSelection = this.selection;
+    updateSelection( selection );
+    if( oldSelection != this.selection ) {
+      notifyListeners( detail );
+    }
+  }
+
+  private void updateSelection( int selection ) {
+    if( this.selection != selection ) {
+      this.selection = selection;
+      adjustSelection();
+      layout();
+    }
+  }
+
+  public void notifyListeners( int detail ) {
+    updateOnDrag( detail );
+    SelectionEvent selectionEvent = createEvent( detail );
+    for( SelectionListener listener : listeners ) {
+      listener.widgetSelected( selectionEvent );
+    }
+  }
+
+  private void updateOnDrag( int detail ) {
+    onDrag = ( onDrag || ( SWT.DRAG & detail ) > 0 ) && ( SWT.NONE != detail );
+  }
+
+  private SelectionEvent createEvent( int detail ) {
+    Event event = new Event();
+    event.widget = this;
+    event.detail = detail;
+    return new SelectionEvent( event );
+  }
+
+  private void adjustThumb() {
+    if( thumb > maximum - minimum ) {
+      thumb = Math.min( maximum - minimum, thumb );
+      thumb = Math.max( 1, thumb );
+    }
+  }
+
+  private void adjustSelection() {
+    selection = Math.min( selection, maximum - thumb );
+    selection = Math.max( selection, minimum );
+  }
+
+  private static Direction getDirection( int style ) {
+    return ( style & SWT.HORIZONTAL ) > 0 ? Direction.HORIZONTAL : Direction.VERTICAL;
+  }
+
+  private void setDefaultColorScheme() {
+    up.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
+    upFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
+    drag.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_FOREGROUND ) );
+    downFast.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_BACKGROUND ) );
+    down.setForeground( Display.getCurrent().getSystemColor( SWT.COLOR_WIDGET_NORMAL_SHADOW ) );
+    setBackground( getBackground() );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/FlatScrollBarLayout.java

@@ -0,0 +1,23 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Layout;
+
+class FlatScrollBarLayout extends Layout {
+
+  private final Direction direction;
+
+  public FlatScrollBarLayout( Direction orientation ) {
+    this.direction = orientation;
+  }
+
+  @Override
+  protected void layout( Composite composite, boolean flushCache ) {
+  }
+
+  @Override
+  protected Point computeSize( Composite composite, int wHint, int hHint, boolean flushCache ) {
+    return direction.computeSize( composite, wHint, hHint, flushCache );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageDrawer.java

@@ -0,0 +1,109 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static java.lang.Math.min;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Display;
+
+class ImageDrawer {
+
+  static final String IMAGE_DRAWER_IS_DISPOSED = "ImageDrawer is disposed.";
+
+  private final int maxExpansion;
+
+  private Color background;
+  private Color foreground;
+
+  ImageDrawer( int expansion  ) {
+    this( expansion, getSystemColor( SWT.COLOR_WIDGET_DARK_SHADOW ), getSystemColor( SWT.COLOR_LIST_BACKGROUND ) );
+  }
+
+  ImageDrawer( int expansion, Color background, Color foreground ) {
+    this.maxExpansion = expansion;
+    this.foreground = defensiveCopy( background );
+    this.background = defensiveCopy( foreground );
+  }
+
+  void setForeground( Color foreground ) {
+    checkDisposed();
+    if( foreground != null ) {
+      this.foreground = prepareColorAttribute( this.foreground, foreground );
+    }
+  }
+
+  Color getForeground() {
+    checkDisposed();
+    return foreground;
+  }
+
+  void setBackground( Color background ) {
+    checkDisposed();
+    if( background != null ) {
+      this.background = prepareColorAttribute( this.background, background );
+    }
+  }
+
+  Color getBackground() {
+    checkDisposed();
+    return background;
+  }
+
+  Image draw( int width, int height ) {
+    checkDisposed();
+    Image result = new Image( getDisplay(), width, height );
+    GC gc = new GC( result );
+    try {
+      draw( gc, width, height );
+    } finally {
+      gc.dispose();
+    }
+    return result;
+  }
+
+  boolean isDisposed() {
+    return background.isDisposed();
+  }
+
+  void dispose() {
+    if( !isDisposed() ) {
+      this.background.dispose();
+      this.foreground.dispose();
+    }
+  }
+
+  private void draw( GC gc, int width, int height ) {
+    gc.setBackground( background );
+    gc.fillRectangle( 0, 0, width, height );
+    gc.setBackground( foreground );
+    gc.setAdvanced( true );
+    gc.setAntialias( SWT.ON );
+    int arc = min( width, height ) == 1 ? 1 : maxExpansion + 2;
+    gc.fillRoundRectangle( 0, 0, width, height, arc, arc );
+  }
+
+  private void checkDisposed() {
+    if( isDisposed() ) {
+      throw new IllegalStateException( IMAGE_DRAWER_IS_DISPOSED );
+    }
+  }
+
+  private static Color getSystemColor( int colorCode ) {
+    return getDisplay().getSystemColor( colorCode );
+  }
+
+  private static Color prepareColorAttribute( Color oldColor, Color newColor ) {
+    oldColor.dispose();
+    return defensiveCopy( newColor );
+  }
+
+  private static Color defensiveCopy( Color background ) {
+    return new Color( getDisplay(), background.getRGB() );
+  }
+
+  private static Display getDisplay() {
+    return Display.getCurrent();
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ImageUpdate.java

@@ -0,0 +1,46 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Label;
+
+class ImageUpdate {
+
+  private final ImageDrawer imageDrawer;
+  private final Label control;
+
+  ImageUpdate( Label control, int maxExpansion ) {
+    this.imageDrawer = new ImageDrawer( maxExpansion );
+    this.control = control;
+    this.control.addListener( SWT.Dispose, evt -> imageDrawer.dispose() );
+  }
+
+  void setForeground( Color color ) {
+    imageDrawer.setForeground( color );
+  }
+
+  Color getForeground() {
+    return imageDrawer.getForeground();
+  }
+
+  void setBackground( Color color ) {
+    imageDrawer.setBackground( color );
+  }
+
+  Color getBackground() {
+    return imageDrawer.getBackground();
+  }
+
+  void update() {
+    if( !control.isDisposed() ) {
+      if( control.getImage() != null ) {
+        control.getImage().dispose();
+      }
+      Point size = control.getSize();
+      if( size.x > 0 && size.y > 0 ) {
+        control.setImage( imageDrawer.draw( size.x, size.y ) );
+      }
+    }
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/Incrementer.java

@@ -0,0 +1,24 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.SWT;
+
+import com.minres.scviewer.database.ui.swt.sb.ClickControl.ClickAction;
+
+class Incrementer implements ClickAction {
+
+  private final FlatScrollBar scrollBar;
+
+  Incrementer( FlatScrollBar scrollBar ) {
+    this.scrollBar = scrollBar;
+  }
+
+  @Override
+  public void run() {
+    int selection = scrollBar.getSelection() + scrollBar.getIncrement();
+    scrollBar.setSelectionInternal( selection, SWT.ARROW_DOWN );
+  }
+
+  @Override
+  public void setCoordinates( int x, int y ) {
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseDownActionTimer.java

@@ -0,0 +1,37 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Display;
+
+public class MouseDownActionTimer implements Runnable {
+
+  public static final int INITIAL_DELAY = 300;
+  public static final int FAST_DELAY = 50;
+
+  private final ActionScheduler scheduler;
+  private final TimerAction timerAction;
+  private final ButtonClick mouseClick;
+
+  public interface TimerAction extends Runnable {
+    boolean isEnabled();
+  }
+
+  public MouseDownActionTimer( TimerAction timerAction, ButtonClick mouseClick, Display display ) {
+    this.scheduler = new ActionScheduler( display, this );
+    this.timerAction = timerAction;
+    this.mouseClick = mouseClick;
+  }
+
+  public void activate() {
+    if( timerAction.isEnabled() ) {
+      scheduler.schedule( INITIAL_DELAY );
+    }
+  }
+
+  @Override
+  public void run() {
+    if( mouseClick.isArmed() && timerAction.isEnabled() ) {
+      timerAction.run();
+      scheduler.schedule( FAST_DELAY );
+    }
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseTracker.java

@@ -0,0 +1,66 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseTrackAdapter;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Display;
+
+class MouseTracker extends MouseTrackAdapter implements Runnable, DisposeListener {
+
+  static final int DELAY = 500;
+
+  private final FlatScrollBar scrollBar;
+  private final int maxExpansion;
+
+  private Rectangle expandedBounds;
+  private Rectangle originBounds;
+  private boolean mouseOver;
+  private boolean disposed;
+
+  MouseTracker( FlatScrollBar scrollBar, int maxExpansion  ) {
+    this.scrollBar = scrollBar;
+    this.maxExpansion = maxExpansion;
+    this.scrollBar.addDisposeListener( this );
+    this.scrollBar.up.getControl().addMouseTrackListener( this );
+    this.scrollBar.upFast.getControl().addMouseTrackListener( this );
+    this.scrollBar.drag.getControl().addMouseTrackListener( this );
+    this.scrollBar.downFast.getControl().addMouseTrackListener( this );
+    this.scrollBar.down.getControl().addMouseTrackListener( this );
+  }
+
+  @Override
+  public void mouseEnter( MouseEvent event ) {
+    mouseOver = true;
+    if( !disposed && originBounds == null ) {
+      originBounds = scrollBar.getBounds();
+      scrollBar.getDirection().expand( scrollBar, maxExpansion );
+      expandedBounds = scrollBar.getBounds();
+    }
+  }
+
+  @Override
+  public void mouseExit( MouseEvent event ) {
+    mouseOver = false;
+    if( !disposed ) {
+      Display.getCurrent().timerExec( DELAY, this );
+    }
+  }
+
+  @Override
+  public void run() {
+    if( !disposed && !mouseOver ) {
+      if( scrollBar.getBounds().equals( expandedBounds ) ) {
+        scrollBar.setBounds( originBounds );
+      }
+      originBounds = null;
+      expandedBounds = null;
+    }
+  }
+
+  @Override
+  public void widgetDisposed( DisposeEvent e ) {
+    disposed = true;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/MouseWheelShifter.java

@@ -0,0 +1,69 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.Direction.HORIZONTAL;
+import static com.minres.scviewer.database.ui.swt.sb.ShiftData.calculateSelectionRange;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+public class MouseWheelShifter implements Listener, DisposeListener {
+
+  private final FlatScrollBar scrollBar;
+  private final Composite parent;
+  private final int buttonLength;
+
+  MouseWheelShifter( FlatScrollBar scrollBar, Composite parent, int buttonLength ) {
+    this.scrollBar = scrollBar;
+    this.parent = parent;
+    this.buttonLength = buttonLength;
+    parent.addListener( getListenerType(), this );
+    scrollBar.addDisposeListener( this );
+  }
+
+  @Override
+  public void handleEvent( Event event ) {
+    handleMouseWheelScroll( event );
+  }
+
+  @Override
+  public void widgetDisposed( DisposeEvent e ) {
+    parent.removeListener( getListenerType(), this );
+  }
+
+  private void handleMouseWheelScroll( Event event ) {
+    ShiftData shiftData = newShiftData( event.count );
+    if( shiftData.canShift() ) {
+      int selectionRange = calculateSelectionRange( scrollBar );
+      int selectionDelta = shiftData.calculateSelectionDelta( selectionRange );
+      int selection = scrollBar.getSelection() - selectionDelta;
+      scrollBar.setSelectionInternal( selection, scrollBar.direction.value() );
+    }
+  }
+
+  private ShiftData newShiftData( int delta ) {
+    ShiftData result;
+    if( scrollBar.direction == Direction.HORIZONTAL ) {
+      result = new ShiftData( buttonLength, getScrollBarSize().x, getDragSize().x, delta );
+    } else {
+      result = new ShiftData( buttonLength, getScrollBarSize().y, getDragSize().y, delta );
+    }
+    return result;
+  }
+
+  private Point getScrollBarSize() {
+    return scrollBar.getSize();
+  }
+
+  private Point getDragSize() {
+    return scrollBar.drag.getControl().getSize();
+  }
+
+  private int getListenerType() {
+    return scrollBar.direction == HORIZONTAL ? SWT.MouseHorizontalWheel: SWT.MouseVerticalWheel;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ResizeObserver.java

@@ -0,0 +1,19 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+
+class ResizeObserver extends ControlAdapter {
+
+  private final FlatScrollBar flatScrollBar;
+
+  public ResizeObserver( FlatScrollBar flatScrollBar ) {
+    this.flatScrollBar = flatScrollBar;
+  }
+
+  @Override
+  public void controlResized( ControlEvent event ) {
+    flatScrollBar.layout();
+    flatScrollBar.moveAbove( null );
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ShiftData.java

@@ -0,0 +1,32 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import static com.minres.scviewer.database.ui.swt.sb.ComponentDistribution.divide;
+
+class ShiftData {
+
+  private final int slidePixels;
+  private final int movedPixels;
+  private final int buttonLength;
+
+  ShiftData( int buttonLength, int scrollBarPixels, int dragPixels, int movedPixels ) {
+    this.buttonLength = buttonLength;
+    this.slidePixels = calculateSlidePixels( scrollBarPixels, dragPixels );
+    this.movedPixels = movedPixels;
+  }
+
+  boolean canShift( ) {
+    return slidePixels > 0;
+  }
+
+  int calculateSelectionDelta( int selectionRange ) {
+    return divide( movedPixels * selectionRange, slidePixels );
+  }
+
+  static int calculateSelectionRange( FlatScrollBar scrollBar ) {
+    return scrollBar.getMaximum() - scrollBar.getMinimum() - scrollBar.getThumb();
+  }
+
+  private int calculateSlidePixels( int scrollBarPixels, int dragPixels ) {
+    return scrollBarPixels - 2 * buttonLength - dragPixels;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/UntypedSelectionAdapter.java

@@ -0,0 +1,43 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import java.util.Collection;
+
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+class UntypedSelectionAdapter extends SelectionAdapter {
+
+  final Listener listener;
+
+  UntypedSelectionAdapter( Listener listener ) {
+    this.listener = listener;
+  }
+
+  @Override
+  public void widgetSelected( SelectionEvent selectionEvent ) {
+    Event event = new Event();
+    event.widget = selectionEvent.widget;
+    event.detail = selectionEvent.detail;
+    listener.handleEvent( event );
+  }
+
+  static SelectionListener lookup( Collection<SelectionListener> listeners, Listener untypedListener ) {
+    for( SelectionListener listener : listeners ) {
+      if( isAdapterType( listener ) && matches( untypedListener, listener ) ) {
+        return listener;
+      }
+    }
+    return null;
+  }
+
+  private static boolean isAdapterType( SelectionListener listener ) {
+    return listener instanceof UntypedSelectionAdapter;
+  }
+
+  private static boolean matches( Listener untypedListener, SelectionListener listener ) {
+    return ( ( UntypedSelectionAdapter )listener ).listener == untypedListener;
+  }
+}

plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/sb/ViewComponent.java

@@ -0,0 +1,7 @@
+package com.minres.scviewer.database.ui.swt.sb;
+
+import org.eclipse.swt.widgets.Control;
+
+public interface ViewComponent {
+  Control getControl();
+}

plugins/com.minres.scviewer.database.ui.swt/src/org/eclipse/wb/swt/SWTResourceManager.java

@@ -29,17 +29,14 @@ import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Display;
 
 /**
- * Utility class for managing OS resources associated with SWT controls such as
- * colors, fonts, images, etc.
+ * Utility class for managing OS resources associated with SWT controls such as colors, fonts, images, etc.
  * <p>
- * !!! IMPORTANT !!! Application code must explicitly invoke the
- * <code>dispose()</code> method to release the operating system resources
- * managed by cached objects when those objects and OS resources are no longer
+ * !!! IMPORTANT !!! Application code must explicitly invoke the <code>dispose()</code> method to release the
+ * operating system resources managed by cached objects when those objects and OS resources are no longer
  * needed (e.g. on application shutdown)
  * <p>
  * This class may be freely distributed as part of any application or plugin.
  * <p>
- * 
  * @author scheglov_ke
  * @author Dan Rubel
  */
@@ -49,54 +46,57 @@ public class SWTResourceManager {
 	// Color
 	//
 	////////////////////////////////////////////////////////////////////////////
-	private static Map<RGB, Color> colorMap = new HashMap<>();
-
-	private SWTResourceManager() {}
-	
+	private static Map<RGB, Color> m_colorMap = new HashMap<RGB, Color>();
 	/**
 	 * Returns the system {@link Color} matching the specific ID.
 	 * 
-	 * @param systemColorID the ID value for the color
+	 * @param systemColorID
+	 *            the ID value for the color
 	 * @return the system {@link Color} matching the specific ID
 	 */
 	public static Color getColor(int systemColorID) {
 		Display display = Display.getCurrent();
 		return display.getSystemColor(systemColorID);
 	}
-
 	/**
 	 * Returns a {@link Color} given its red, green and blue component values.
 	 * 
-	 * @param r the red component of the color
-	 * @param g the green component of the color
-	 * @param b the blue component of the color
-	 * @return the {@link Color} matching the given red, green and blue component
-	 *         values
+	 * @param r
+	 *            the red component of the color
+	 * @param g
+	 *            the green component of the color
+	 * @param b
+	 *            the blue component of the color
+	 * @return the {@link Color} matching the given red, green and blue component values
 	 */
 	public static Color getColor(int r, int g, int b) {
 		return getColor(new RGB(r, g, b));
 	}
-
 	/**
 	 * Returns a {@link Color} given its RGB value.
 	 * 
-	 * @param rgb the {@link RGB} value of the color
+	 * @param rgb
+	 *            the {@link RGB} value of the color
 	 * @return the {@link Color} matching the RGB value
 	 */
 	public static Color getColor(RGB rgb) {
-		return colorMap.computeIfAbsent(rgb, k -> new Color(Display.getCurrent(), rgb));
+		Color color = m_colorMap.get(rgb);
+		if (color == null) {
+			Display display = Display.getCurrent();
+			color = new Color(display, rgb);
+			m_colorMap.put(rgb, color);
+		}
+		return color;
 	}
-
 	/**
 	 * Dispose of all the cached {@link Color}'s.
 	 */
 	public static void disposeColors() {
-		for (Color color : colorMap.values()) {
+		for (Color color : m_colorMap.values()) {
 			color.dispose();
 		}
-		colorMap.clear();
+		m_colorMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Image
@@ -105,12 +105,12 @@ public class SWTResourceManager {
 	/**
 	 * Maps image paths to images.
 	 */
-	private static Map<String, Image> imageMap = new HashMap<>();
-
+	private static Map<String, Image> m_imageMap = new HashMap<String, Image>();
 	/**
 	 * Returns an {@link Image} encoded by the specified {@link InputStream}.
 	 * 
-	 * @param stream the {@link InputStream} encoding the image data
+	 * @param stream
+	 *            the {@link InputStream} encoding the image data
 	 * @return the {@link Image} encoded by the specified input stream
 	 */
 	protected static Image getImage(InputStream stream) throws IOException {
@@ -125,55 +125,52 @@ public class SWTResourceManager {
 			stream.close();
 		}
 	}
-
 	/**
 	 * Returns an {@link Image} stored in the file at the specified path.
 	 * 
-	 * @param path the path to the image file
+	 * @param path
+	 *            the path to the image file
 	 * @return the {@link Image} stored in the file at the specified path
 	 */
 	public static Image getImage(String path) {
-		Image image = imageMap.get(path);
+		Image image = m_imageMap.get(path);
 		if (image == null) {
 			try {
 				image = getImage(new FileInputStream(path));
-				imageMap.put(path, image);
+				m_imageMap.put(path, image);
 			} catch (Exception e) {
 				image = getMissingImage();
-				imageMap.put(path, image);
+				m_imageMap.put(path, image);
 			}
 		}
 		return image;
 	}
-
 	/**
-	 * Returns an {@link Image} stored in the file at the specified path relative to
-	 * the specified class.
+	 * Returns an {@link Image} stored in the file at the specified path relative to the specified class.
 	 * 
-	 * @param clazz the {@link Class} relative to which to find the image
-	 * @param path  the path to the image file, if starts with <code>'/'</code>
+	 * @param clazz
+	 *            the {@link Class} relative to which to find the image
+	 * @param path
+	 *            the path to the image file, if starts with <code>'/'</code>
 	 * @return the {@link Image} stored in the file at the specified path
 	 */
 	public static Image getImage(Class<?> clazz, String path) {
 		String key = clazz.getName() + '|' + path;
-		Image image = imageMap.get(key);
+		Image image = m_imageMap.get(key);
 		if (image == null) {
 			try {
 				image = getImage(clazz.getResourceAsStream(path));
-				imageMap.put(key, image);
+				m_imageMap.put(key, image);
 			} catch (Exception e) {
 				image = getMissingImage();
-				imageMap.put(key, image);
+				m_imageMap.put(key, image);
 			}
 		}
 		return image;
 	}
-
 	private static final int MISSING_IMAGE_SIZE = 10;
-
 	/**
-	 * @return the small {@link Image} that can be used as placeholder for missing
-	 *         image.
+	 * @return the small {@link Image} that can be used as placeholder for missing image.
 	 */
 	private static Image getMissingImage() {
 		Image image = new Image(Display.getCurrent(), MISSING_IMAGE_SIZE, MISSING_IMAGE_SIZE);
@@ -185,7 +182,6 @@ public class SWTResourceManager {
 		//
 		return image;
 	}
-
 	/**
 	 * Style constant for placing decorator image in top left corner of base image.
 	 */
@@ -195,13 +191,11 @@ public class SWTResourceManager {
 	 */
 	public static final int TOP_RIGHT = 2;
 	/**
-	 * Style constant for placing decorator image in bottom left corner of base
-	 * image.
+	 * Style constant for placing decorator image in bottom left corner of base image.
 	 */
 	public static final int BOTTOM_LEFT = 3;
 	/**
-	 * Style constant for placing decorator image in bottom right corner of base
-	 * image.
+	 * Style constant for placing decorator image in bottom right corner of base image.
 	 */
 	public static final int BOTTOM_RIGHT = 4;
 	/**
@@ -212,77 +206,83 @@ public class SWTResourceManager {
 	 * Maps images to decorated images.
 	 */
 	@SuppressWarnings("unchecked")
-	private static Map<Image, Map<Image, Image>>[] decoratedImageMap = new Map[LAST_CORNER_KEY];
-
+	private static Map<Image, Map<Image, Image>>[] m_decoratedImageMap = new Map[LAST_CORNER_KEY];
 	/**
 	 * Returns an {@link Image} composed of a base image decorated by another image.
 	 * 
-	 * @param baseImage the base {@link Image} that should be decorated
-	 * @param decorator the {@link Image} to decorate the base image
+	 * @param baseImage
+	 *            the base {@link Image} that should be decorated
+	 * @param decorator
+	 *            the {@link Image} to decorate the base image
 	 * @return {@link Image} The resulting decorated image
 	 */
 	public static Image decorateImage(Image baseImage, Image decorator) {
 		return decorateImage(baseImage, decorator, BOTTOM_RIGHT);
 	}
-
 	/**
 	 * Returns an {@link Image} composed of a base image decorated by another image.
 	 * 
-	 * @param baseImage the base {@link Image} that should be decorated
-	 * @param decorator the {@link Image} to decorate the base image
-	 * @param corner    the corner to place decorator image
+	 * @param baseImage
+	 *            the base {@link Image} that should be decorated
+	 * @param decorator
+	 *            the {@link Image} to decorate the base image
+	 * @param corner
+	 *            the corner to place decorator image
 	 * @return the resulting decorated {@link Image}
 	 */
 	public static Image decorateImage(final Image baseImage, final Image decorator, final int corner) {
 		if (corner <= 0 || corner >= LAST_CORNER_KEY) {
 			throw new IllegalArgumentException("Wrong decorate corner");
 		}
-		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[corner];
+		Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[corner];
 		if (cornerDecoratedImageMap == null) {
-			cornerDecoratedImageMap = new HashMap<>();
-			decoratedImageMap[corner] = cornerDecoratedImageMap;
+			cornerDecoratedImageMap = new HashMap<Image, Map<Image, Image>>();
+			m_decoratedImageMap[corner] = cornerDecoratedImageMap;
 		}
-		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.computeIfAbsent(baseImage,
-				k -> new HashMap<Image, Image>());
-		return decoratedMap.computeIfAbsent(decorator, k -> {
+		Map<Image, Image> decoratedMap = cornerDecoratedImageMap.get(baseImage);
+		if (decoratedMap == null) {
+			decoratedMap = new HashMap<Image, Image>();
+			cornerDecoratedImageMap.put(baseImage, decoratedMap);
+		}
+		//
+		Image result = decoratedMap.get(decorator);
+		if (result == null) {
 			Rectangle bib = baseImage.getBounds();
 			Rectangle dib = decorator.getBounds();
-			Image result = new Image(Display.getCurrent(), bib.width, bib.height);
+			//
+			result = new Image(Display.getCurrent(), bib.width, bib.height);
+			//
 			GC gc = new GC(result);
 			gc.drawImage(baseImage, 0, 0);
-			switch (corner) {
-			case TOP_LEFT:
+			if (corner == TOP_LEFT) {
 				gc.drawImage(decorator, 0, 0);
-				break;
-			case TOP_RIGHT:
+			} else if (corner == TOP_RIGHT) {
 				gc.drawImage(decorator, bib.width - dib.width, 0);
-				break;
-			case BOTTOM_LEFT:
+			} else if (corner == BOTTOM_LEFT) {
 				gc.drawImage(decorator, 0, bib.height - dib.height);
-				break;
-			case BOTTOM_RIGHT:
+			} else if (corner == BOTTOM_RIGHT) {
 				gc.drawImage(decorator, bib.width - dib.width, bib.height - dib.height);
-				break;
-			default:
-				// do nothing
 			}
 			gc.dispose();
-			return result;
-		});
+			//
+			decoratedMap.put(decorator, result);
+		}
+		return result;
 	}
-
 	/**
 	 * Dispose all of the cached {@link Image}'s.
 	 */
 	public static void disposeImages() {
 		// dispose loaded images
-		for (Image image : imageMap.values()) {
+		{
+			for (Image image : m_imageMap.values()) {
 				image.dispose();
 			}
-		imageMap.clear();
+			m_imageMap.clear();
+		}
 		// dispose decorated images
-		for (int i = 0; i < decoratedImageMap.length; i++) {
-			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = decoratedImageMap[i];
+		for (int i = 0; i < m_decoratedImageMap.length; i++) {
+			Map<Image, Map<Image, Image>> cornerDecoratedImageMap = m_decoratedImageMap[i];
 			if (cornerDecoratedImageMap != null) {
 				for (Map<Image, Image> decoratedMap : cornerDecoratedImageMap.values()) {
 					for (Image image : decoratedMap.values()) {
@@ -294,7 +294,6 @@ public class SWTResourceManager {
 			}
 		}
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Font
@@ -303,39 +302,45 @@ public class SWTResourceManager {
 	/**
 	 * Maps font names to fonts.
 	 */
-	private static Map<String, Font> fontMap = new HashMap<>();
+	private static Map<String, Font> m_fontMap = new HashMap<String, Font>();
 	/**
 	 * Maps fonts to their bold versions.
 	 */
-	private static Map<Font, Font> fontToBoldFontMap = new HashMap<>();
-
+	private static Map<Font, Font> m_fontToBoldFontMap = new HashMap<Font, Font>();
 	/**
 	 * Returns a {@link Font} based on its name, height and style.
 	 * 
-	 * @param name   the name of the font
-	 * @param height the height of the font
-	 * @param style  the style of the font
+	 * @param name
+	 *            the name of the font
+	 * @param height
+	 *            the height of the font
+	 * @param style
+	 *            the style of the font
 	 * @return {@link Font} The font matching the name, height and style
 	 */
 	public static Font getFont(String name, int height, int style) {
 		return getFont(name, height, style, false, false);
 	}
-
 	/**
-	 * Returns a {@link Font} based on its name, height and style. Windows-specific
-	 * strikeout and underline flags are also supported.
+	 * Returns a {@link Font} based on its name, height and style. Windows-specific strikeout and underline
+	 * flags are also supported.
 	 * 
-	 * @param name      the name of the font
-	 * @param size      the size of the font
-	 * @param style     the style of the font
-	 * @param strikeout the strikeout flag (warning: Windows only)
-	 * @param underline the underline flag (warning: Windows only)
-	 * @return {@link Font} The font matching the name, height, style, strikeout and
-	 *         underline
+	 * @param name
+	 *            the name of the font
+	 * @param size
+	 *            the size of the font
+	 * @param style
+	 *            the style of the font
+	 * @param strikeout
+	 *            the strikeout flag (warning: Windows only)
+	 * @param underline
+	 *            the underline flag (warning: Windows only)
+	 * @return {@link Font} The font matching the name, height, style, strikeout and underline
 	 */
 	public static Font getFont(String name, int size, int style, boolean strikeout, boolean underline) {
 		String fontName = name + '|' + size + '|' + style + '|' + strikeout + '|' + underline;
-		return fontMap.computeIfAbsent(fontName, k -> {
+		Font font = m_fontMap.get(fontName);
+		if (font == null) {
 			FontData fontData = new FontData(name, size, style);
 			if (strikeout || underline) {
 				try {
@@ -349,45 +354,47 @@ public class SWTResourceManager {
 							logFontClass.getField("lfUnderline").set(logFont, Byte.valueOf((byte) 1)); //$NON-NLS-1$
 						}
 					}
-				} catch (Exception e) {
+				} catch (Throwable e) {
+					System.err.println("Unable to set underline or strikeout" + " (probably on a non-Windows platform). " + e); //$NON-NLS-1$ //$NON-NLS-2$
 				}
 			}
-			return new Font(Display.getCurrent(), fontData);
-
-		});
-
+			font = new Font(Display.getCurrent(), fontData);
+			m_fontMap.put(fontName, font);
+		}
+		return font;
 	}
-
 	/**
 	 * Returns a bold version of the given {@link Font}.
 	 * 
-	 * @param baseFont the {@link Font} for which a bold version is desired
+	 * @param baseFont
+	 *            the {@link Font} for which a bold version is desired
 	 * @return the bold version of the given {@link Font}
 	 */
 	public static Font getBoldFont(Font baseFont) {
-		return fontToBoldFontMap.computeIfAbsent(baseFont, k -> {
-			FontData[] fontDatas = baseFont.getFontData();
+		Font font = m_fontToBoldFontMap.get(baseFont);
+		if (font == null) {
+			FontData fontDatas[] = baseFont.getFontData();
 			FontData data = fontDatas[0];
-			return new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
-		});
+			font = new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
+			m_fontToBoldFontMap.put(baseFont, font);
+		}
+		return font;
 	}
-
 	/**
 	 * Dispose all of the cached {@link Font}'s.
 	 */
 	public static void disposeFonts() {
 		// clear fonts
-		for (Font font : fontMap.values()) {
+		for (Font font : m_fontMap.values()) {
 			font.dispose();
 		}
-		fontMap.clear();
+		m_fontMap.clear();
 		// clear bold fonts
-		for (Font font : fontToBoldFontMap.values()) {
+		for (Font font : m_fontToBoldFontMap.values()) {
 			font.dispose();
 		}
-		fontToBoldFontMap.clear();
+		m_fontToBoldFontMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// Cursor
@@ -396,38 +403,40 @@ public class SWTResourceManager {
 	/**
 	 * Maps IDs to cursors.
 	 */
-	private static Map<Integer, Cursor> idToCursorMap = new HashMap<>();
-
+	private static Map<Integer, Cursor> m_idToCursorMap = new HashMap<Integer, Cursor>();
 	/**
 	 * Returns the system cursor matching the specific ID.
 	 * 
-	 * @param id int The ID value for the cursor
+	 * @param id
+	 *            int The ID value for the cursor
 	 * @return Cursor The system cursor matching the specific ID
 	 */
 	public static Cursor getCursor(int id) {
 		Integer key = Integer.valueOf(id);
-		return idToCursorMap.computeIfAbsent(key, k -> new Cursor(Display.getDefault(), id));
+		Cursor cursor = m_idToCursorMap.get(key);
+		if (cursor == null) {
+			cursor = new Cursor(Display.getDefault(), id);
+			m_idToCursorMap.put(key, cursor);
+		}
+		return cursor;
 	}
-
 	/**
 	 * Dispose all of the cached cursors.
 	 */
 	public static void disposeCursors() {
-		for (Cursor cursor : idToCursorMap.values()) {
+		for (Cursor cursor : m_idToCursorMap.values()) {
 			cursor.dispose();
 		}
-		idToCursorMap.clear();
+		m_idToCursorMap.clear();
 	}
-
 	////////////////////////////////////////////////////////////////////////////
 	//
 	// General
 	//
 	////////////////////////////////////////////////////////////////////////////
 	/**
-	 * Dispose of cached objects and their underlying OS resources. This should only
-	 * be called when the cached objects are no longer needed (e.g. on application
-	 * shutdown).
+	 * Dispose of cached objects and their underlying OS resources. This should only be called when the cached
+	 * objects are no longer needed (e.g. on application shutdown).
 	 */
 	public static void dispose() {
 		disposeColors();

plugins/com.minres.scviewer.database.vcd/OSGI-INF/component.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="VCDDbLoader">
-   <implementation class="com.minres.scviewer.database.vcd.VCDDbLoader"/>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="VCDDbLoaderFactory">
+   <implementation class="com.minres.scviewer.database.vcd.VCDDbLoaderFactory"/>
    <service>
-      <provide interface="com.minres.scviewer.database.IWaveformDbLoader"/>
+      <provide interface="com.minres.scviewer.database.IWaveformDbLoaderFactory"/>
    </service>
 </scr:component>

plugins/com.minres.scviewer.database.vcd/pom.xml

@@ -5,7 +5,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <packaging>eclipse-plugin</packaging>

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

@@ -164,7 +164,8 @@ public class VCDDbLoader implements IWaveformDbLoader, IVCDDatabaseBuilder {
 	@Override
 	public void enterModule(String tokenString) {
 		if(moduleStack.isEmpty()) {
-			if("SystemC".compareTo(tokenString)!=0) moduleStack.push(tokenString);
+			if("SystemC".compareTo(tokenString)!=0)
+				moduleStack.push(tokenString);
 		} else
 			moduleStack.push(moduleStack.peek()+"."+tokenString);
 

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

@@ -0,0 +1,77 @@
+/*******************************************************************************
+ * 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     MINRES Technologies GmbH - initial API and implementation
+ *******************************************************************************/
+package com.minres.scviewer.database.vcd;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.zip.GZIPInputStream;
+
+import com.minres.scviewer.database.IWaveformDbLoader;
+import com.minres.scviewer.database.IWaveformDbLoaderFactory;
+
+/**
+ * The Class VCDDb.
+ */
+public class VCDDbLoaderFactory implements IWaveformDbLoaderFactory {
+	/**
+	 * Checks if is gzipped.
+	 *
+	 * @param f the f
+	 * @return true, if is gzipped
+	 */
+	private static boolean isGzipped(File f) {
+		try (InputStream is = new FileInputStream(f)) {
+			byte [] signature = new byte[2];
+			int nread = is.read( signature ); //read the gzip signature
+			return nread == 2 && signature[ 0 ] == (byte) 0x1f && signature[ 1 ] == (byte) 0x8b;
+		}
+		catch (IOException e) {
+			return false;
+		}
+	}
+
+
+	/**
+	 * Can load.
+	 *
+	 * @param inputFile the input file
+	 * @return true, if successful
+	 */
+	@Override
+	public boolean canLoad(File inputFile) {
+		if(!inputFile.isDirectory() || inputFile.exists()) {
+			String name = inputFile.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;
+	}
+
+
+	@Override
+	public IWaveformDbLoader getLoader() {
+		return new VCDDbLoader();
+	}
+}

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

@@ -12,5 +12,5 @@ org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.release=enabled
 org.eclipse.jdt.core.compiler.source=11

plugins/com.minres.scviewer.database/OSGI-INF/component.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="com.minres.scviewer.database.loader">
    <implementation class="com.minres.scviewer.database.internal.WaveformDb"/>
-   <reference bind="bind" cardinality="1..n" interface="com.minres.scviewer.database.IWaveformDbLoader" name="IWaveformDbLoader" policy="dynamic" unbind="unbind"/>
+   <reference bind="bind" cardinality="1..n" interface="com.minres.scviewer.database.IWaveformDbLoaderFactory" name="IWaveformDbLoaderFactory" policy="dynamic" unbind="unbind"/>
 </scr:component>

plugins/com.minres.scviewer.database/pom.xml

@@ -4,7 +4,7 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.13.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <packaging>eclipse-plugin</packaging>

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

@@ -62,9 +62,4 @@ public interface IWaveformDb extends IHierNode {
 	 */
 	public boolean isLoaded();
 
-	/**
-	 * Clear.
-	 */
-	public void clear();
-
 }

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

@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     MINRES Technologies GmbH - initial API and implementation
+ *******************************************************************************/
+package com.minres.scviewer.database;
+
+import java.io.File;
+
+/**
+ * A factory for creating IWaveformDb objects.
+ */
+public interface IWaveformDbLoaderFactory {
+
+	/**
+	 * Check if the loader produced by this factory can load the given file.
+	 *
+	 * @param inputFile the input file
+	 * @return true, if successful
+	 */
+	public boolean canLoad(File inputFile);
+	/**
+	 * Gets the database.
+	 *
+	 * @return the database
+	 */
+	IWaveformDbLoader getLoader();
+}

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

@@ -15,16 +15,17 @@ import java.beans.PropertyChangeListener;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 
 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.database.IWaveformDbLoader;
+import com.minres.scviewer.database.IWaveformDbLoaderFactory;
 import com.minres.scviewer.database.RelationType;
 
 /**
@@ -33,7 +34,7 @@ import com.minres.scviewer.database.RelationType;
 public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeListener {
 
 	/** The loaders. */
-	private static List<IWaveformDbLoader> loaders = new LinkedList<>();
+	private static List<IWaveformDbLoaderFactory> loaderFactories = new LinkedList<>();
 
 	/** The loaded. */
 	private boolean loaded;
@@ -52,8 +53,8 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	 *
 	 * @param loader the loader
 	 */
-	public synchronized void bind(IWaveformDbLoader loader) {
-		loaders.add(loader);
+	public synchronized void bind(IWaveformDbLoaderFactory loader) {
+		loaderFactories.add(loader);
 	}
 
 	/**
@@ -61,8 +62,8 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	 *
 	 * @param loader the loader
 	 */
-	public synchronized void unbind(IWaveformDbLoader loader) {
-		loaders.remove(loader);
+	public synchronized void unbind(IWaveformDbLoaderFactory loader) {
+		loaderFactories.remove(loader);
 	}
 
 	/**
@@ -70,8 +71,8 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	 *
 	 * @return the loaders
 	 */
-	public static List<IWaveformDbLoader> getLoaders() {
-		return Collections.unmodifiableList(loaders);
+	public static List<IWaveformDbLoaderFactory> getLoaders() {
+		return Collections.unmodifiableList(loaderFactories);
 	}
 
 	/**
@@ -79,7 +80,7 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	 */
 	public WaveformDb() {
 		super();
-		waveforms = new HashMap<>();
+		waveforms = new ConcurrentHashMap<>();
 		relationTypes = new ArrayList<>();
 		maxTime = 0L;
 	}
@@ -124,8 +125,9 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	@Override
 	public boolean load(File inp) {
 		boolean retval = true;
-		for (IWaveformDbLoader loader : loaders) {
-			if (loader.canLoad(inp)) {
+		for (IWaveformDbLoaderFactory loaderFactory : loaderFactories) {
+			if (loaderFactory.canLoad(inp)) {
+				IWaveformDbLoader loader = loaderFactory.getLoader();
 				loader.addPropertyChangeListener(this);
 				try {
 					loader.load(this, inp);
@@ -165,16 +167,6 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 		return ext;
 	}
 
-	/**
-	 * Clear.
-	 */
-	@Override
-	public void clear() {
-		waveforms.clear();
-		childNodes.clear();
-		loaded = false;
-	}
-
 	/**
 	 * Checks if is loaded.
 	 *
@@ -201,7 +193,7 @@ public class WaveformDb extends HierNode implements IWaveformDb, PropertyChangeL
 	/**
 	 * Builds the hierarchy nodes.
 	 */
-	private void buildHierarchyNodes() {
+	private synchronized void buildHierarchyNodes() {
 		boolean needsSorting = false;
 		for (IWaveform stream : getAllWaves()) {
 			if (stream.getParent() == null) {

plugins/com.minres.scviewer.e4.application/Application.e4xmi

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <application:Application xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:advanced="http://www.eclipse.org/ui/2010/UIModel/application/ui/advanced" xmlns:application="http://www.eclipse.org/ui/2010/UIModel/application" xmlns:basic="http://www.eclipse.org/ui/2010/UIModel/application/ui/basic" xmlns:menu="http://www.eclipse.org/ui/2010/UIModel/application/ui/menu" xmlns:ui="http://www.eclipse.org/ui/2010/UIModel/application/ui" xmi:id="_95PfsHNmEeWBq8z1Dv39LA" elementId="org.eclipse.e4.ide.application" bindingContexts="_95PfuXNmEeWBq8z1Dv39LA">
-  <children xsi:type="basic:TrimmedWindow" xmi:id="_95PfsXNmEeWBq8z1Dv39LA" label="SC Viewer" bindingContexts="_95PfunNmEeWBq8z1Dv39LA" width="1280" height="700">
+  <children xsi:type="basic:TrimmedWindow" xmi:id="_95PfsXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.trimmedwindow.main" label="SC Viewer" bindingContexts="_95PfunNmEeWBq8z1Dv39LA" width="1280" height="700">
     <children xsi:type="advanced:PerspectiveStack" xmi:id="_95QGxnNmEeWBq8z1Dv39LA">
       <children xsi:type="advanced:Perspective" xmi:id="_95QGx3NmEeWBq8z1Dv39LA">
         <children xsi:type="basic:PartStack" xmi:id="_95QGyXNmEeWBq8z1Dv39LA" elementId="org.eclipse.editorss" containerData="7500">
@@ -9,20 +9,22 @@
       </children>
     </children>
     <children xsi:type="basic:Part" xmi:id="__VNlAIytEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.dialog.aboutscviewer" toBeRendered="false" visible="false" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.AboutDialog" label="About SCViewer" bindingContexts="_95Pfu3NmEeWBq8z1Dv39LA"/>
+    <children xsi:type="basic:Part" xmi:id="_hXh-kEYFEeyPM8G0E2EYww" elementId="com.minres.scviewer.e4.application.dialog.onlinehelp" toBeRendered="false" visible="false" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.HelpDialog" label="SCViewer Online Help" bindingContexts="_95Pfu3NmEeWBq8z1Dv39LA" closeable="true"/>
     <mainMenu xmi:id="_95PfyXNmEeWBq8z1Dv39LA" elementId="menu:org.eclipse.ui.main.menu">
       <children xsi:type="menu:Menu" xmi:id="_95QGwHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.menu.file" label="File">
-        <children xsi:type="menu:HandledMenuItem" xmi:id="_igsK0BkREeudD5MqrWoETQ" elementId="" label="Open Database" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/folder_database.png" mnemonics="M1+O" command="_95PfwHNmEeWBq8z1Dv39LA"/>
-        <children xsi:type="menu:HandledMenuItem" xmi:id="_VJG3YHgvEeWwZ-9vrAR2UQ" elementId="" label="Re-load Database" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/database_refresh.png" mnemonics="M1+R" command="_srACsBkREeudD5MqrWoETQ"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_igsK0BkREeudD5MqrWoETQ" elementId="" label="Open Database" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/folder_database.png" mnemonics="" command="_95PfwHNmEeWBq8z1Dv39LA"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_VJG3YHgvEeWwZ-9vrAR2UQ" elementId="" label="Re-load Database" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/database_refresh.png" mnemonics="" command="_srACsBkREeudD5MqrWoETQ"/>
         <children xsi:type="menu:HandledMenuItem" xmi:id="_e7MOYJedEeW09eyIbHsdvg" elementId="" label="Load active tab settings" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/folder_page.png" command="_7-AIMJebEeW09eyIbHsdvg">
           <parameters xmi:id="_4vtYgJehEeW09eyIbHsdvg" elementId="com.minres.scviewer.e4.application.parameter.30" name="com.minres.scviewer.e4.application.commandparameter.loadStore" value="load"/>
         </children>
-        <children xsi:type="menu:HandledMenuItem" xmi:id="_95QGwnNmEeWBq8z1Dv39LA" label="Save active tab settings" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/script_save.png" command="_7-AIMJebEeW09eyIbHsdvg">
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_95QGwnNmEeWBq8z1Dv39LA" label="Save active tab settings" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/script_save.png" mnemonics="" command="_7-AIMJebEeW09eyIbHsdvg">
           <parameters xmi:id="_61QIsJehEeW09eyIbHsdvg" elementId="com.minres.scviewer.e4.application.parameter.31" name="com.minres.scviewer.e4.application.commandparameter.loadStore" value="store"/>
         </children>
         <children xsi:type="menu:HandledMenuItem" xmi:id="_95QGw3NmEeWBq8z1Dv39LA" label="Quit" command="_95PfvHNmEeWBq8z1Dv39LA"/>
       </children>
       <children xsi:type="menu:Menu" xmi:id="_ZyHC0HgvEeWwZ-9vrAR2UQ" elementId="" label="Edit">
-        <children xsi:type="menu:HandledMenuItem" xmi:id="_cPlx4HgvEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledmenuitem.delete" label="Delete" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/cross.png" command="_WUZ2wHXHEeWwZ-9vrAR2UQ"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_FiwZcEhdEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.handledmenuitem.delete" label="Delete" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/cross.png" command="_WUZ2wHXHEeWwZ-9vrAR2UQ"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_cPlx4HgvEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledmenuitem.delete" label="Select All" iconURI="" command="_bV-TMHXHEeWwZ-9vrAR2UQ"/>
       </children>
       <children xsi:type="menu:Menu" xmi:id="_XmZY4HchEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.menu.navigate" label="Navigate">
         <children xsi:type="menu:Menu" xmi:id="_VCn_cHgwEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.menu.waveform" label="Waveform ...">
@@ -55,7 +57,8 @@
       </children>
       <children xsi:type="menu:Menu" xmi:id="_95QGxHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.menu.help" label="Help">
         <children xsi:type="menu:HandledMenuItem" xmi:id="_UQRi0B07EeuiP60JNw0iiA" elementId="com.minres.scviewer.e4.application.handledmenuitem.checkforupdate" visible="false" label="Check for Update" enabled="false" command="_-9ED4B06EeuiP60JNw0iiA"/>
-        <children xsi:type="menu:HandledMenuItem" xmi:id="_95QGxXNmEeWBq8z1Dv39LA" label="About" command="_95PfxnNmEeWBq8z1Dv39LA"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_95QGxXNmEeWBq8z1Dv39LA" label="Online Help" command="_lqjIYEYEEeyPM8G0E2EYww"/>
+        <children xsi:type="menu:HandledMenuItem" xmi:id="_4xtmgEYEEeyPM8G0E2EYww" label="About" command="_95PfxnNmEeWBq8z1Dv39LA"/>
       </children>
     </mainMenu>
     <trimBars xmi:id="_95QGy3NmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.main.toolbar">
@@ -78,41 +81,12 @@
         <children xsi:type="menu:HandledToolItem" xmi:id="_FrGmEHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.movestreamdown" label="Move Stream down" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/down_blue.png" tooltip="Move stream/waveform in list down" command="_N_sOkHXHEeWwZ-9vrAR2UQ">
           <parameters xmi:id="_VA_yAHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.9" name="com.minres.scviewer.e4.application.command.movewaveformupCommand.parameter.dir" value="down"/>
         </children>
-        <children xsi:type="menu:ToolBarSeparator" xmi:id="_srcD0HgwEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.toolbarseparator.3"/>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_GKi7IHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.previousevent" label="Previous Event" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/reverse_blue.png" tooltip="Navigate to previous event in stream/waveform" command="_79rx4HabEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_XS7YYHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.10" name="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir" value="prev"/>
-        </children>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_GjlGMHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.nextevent" label="Next Event" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/play_blue.png" tooltip="Navigate to next event in stream/waveform" command="_79rx4HabEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_ZzTqcHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.11" name="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir" value="next"/>
-        </children>
-        <children xsi:type="menu:ToolBarSeparator" xmi:id="_tcxaIHgwEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.toolbarseparator.4"/>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_HdKZkHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.previoustransaction" label="Previous Transaction" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/reverse_green.png" tooltip="Navigate to previous transaction" command="_Gn3lEHXKEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_cuGAkHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.12" name="com.minres.scviewer.e4.application.command.navigateTransCommand.parameter.dir" value="prev"/>
-        </children>
-        <children xsi:type="menu:ToolControl" xmi:id="_LtQhcIuKEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.toolcontrol.0" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.elements.RelationTypeToolControl"/>
-        <children xsi:type="menu:DirectToolItem" xmi:id="_Z7ZQkIuJEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.directtoolitem.nextprevinstream" toBeRendered="false" visible="false" label="Next/Prev in stream">
-          <menu xmi:id="_aPyMMIuJEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.menu.2">
-            <children xsi:type="menu:DynamicMenuContribution" xmi:id="_cnNWkIuJEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.dynamicmenucontribution.2" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.NavigateContribution"/>
-          </menu>
-        </children>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_H7bp8HcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.nexttransaction" label="Next Transaction" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/play_green.png" tooltip="Navigate to next transaction" command="_Gn3lEHXKEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_fiO8IHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.13" name="com.minres.scviewer.e4.application.command.navigateTransCommand.parameter.dir" value="next"/>
-        </children>
-      </children>
-      <children xsi:type="menu:ToolBar" xmi:id="_oQdMUHcqEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.toolbar.1">
-        <children xsi:type="menu:HandledToolItem" xmi:id="_5DrGQHf4EeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomfit" label="Zoom out" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/magnifier.png" tooltip="Restore default zoom level" command="_693GoHcqEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_5DrGQXf4EeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.14" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="fit"/>
-        </children>
-        <children xsi:type="menu:ToolBarSeparator" xmi:id="_p1AvUHcqEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.toolbarseparator.1"/>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_XMQPAHcrEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomin" label="Zoom in" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/magnifier_zoom_in.png" tooltip="Zoom in by a factor of 3" command="_693GoHcqEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_fi5w4HcrEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.15" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="in"/>
-        </children>
-        <children xsi:type="menu:HandledToolItem" xmi:id="_XqTc8HcrEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomout" label="Zoom out" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/magifier_zoom_out.png" tooltip="Zoom out by a factor of 3" command="_693GoHcqEeWwZ-9vrAR2UQ">
-          <parameters xmi:id="_d7OBYHcrEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.14" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="out"/>
-        </children>
       </children>
       <children xsi:type="menu:ToolBar" xmi:id="_fwn8wGtTEeqmlpoaaMHoiw" elementId="com.minres.scviewer.e4.application.toolbar.2">
-        <children xsi:type="menu:HandledToolItem" xmi:id="_j-XIgGtTEeqmlpoaaMHoiw" elementId="com.minres.scviewer.e4.application.handledtoolitem.hover" label="Hover" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/lightbulb.png" tooltip="Enable hover window in waveform" selected="true" type="Check" command="_uyeyYGtTEeqmlpoaaMHoiw">
+        <children xsi:type="menu:HandledToolItem" xmi:id="_j-XIgGtTEeqmlpoaaMHoiw" elementId="com.minres.scviewer.e4.application.handledtoolitem.txdetails" label="TX Details" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/application_side_expand.png" tooltip="Show tx details parts" selected="true" type="Check" command="_Fj1gQEYoEeyKK_icsY7Xjg">
+          <tags>EnableTxDetails</tags>
+        </children>
+        <children xsi:type="menu:HandledToolItem" xmi:id="_33tugEYnEeyKK_icsY7Xjg" elementId="com.minres.scviewer.e4.application.handledtoolitem.hover" label="Hover" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/lightbulb.png" tooltip="Enable hover window in waveform" selected="true" type="Check" command="_uyeyYGtTEeqmlpoaaMHoiw">
           <tags>EnableHover</tags>
         </children>
       </children>
@@ -135,24 +109,17 @@
   <handlers xmi:id="_UUnX8IoNEeWxJ_wPkM6yGQ" elementId="com.minres.scviewer.e4.application.handler.set_them" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.ThemeSetHandler" command="_KlGlsIoNEeWxJ_wPkM6yGQ"/>
   <handlers xmi:id="_V4EscIuGEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.handler.setreleationtype" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.SetRelationTypeHandler" command="_E9lUgIt2EeWid7xO48ZBXw"/>
   <handlers xmi:id="__99WoJebEeW09eyIbHsdvg" elementId="com.minres.scviewer.e4.application.handler.loadStoreSettings" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.LoadStoreSettingsHandler" command="_7-AIMJebEeW09eyIbHsdvg"/>
-  <handlers xmi:id="_x4pSEGtTEeqmlpoaaMHoiw" elementId="com.minres.scviewer.e4.application.handler.0" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.EnableHover" command="_uyeyYGtTEeqmlpoaaMHoiw"/>
+  <handlers xmi:id="_x4pSEGtTEeqmlpoaaMHoiw" elementId="com.minres.scviewer.e4.application.handler.enablehover" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.EnableHover" command="_uyeyYGtTEeqmlpoaaMHoiw"/>
   <handlers xmi:id="_h3jU8BkWEeudD5MqrWoETQ" elementId="com.minres.scviewer.e4.application.handler.reloadCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.ReloadHandler" command="_srACsBkREeudD5MqrWoETQ"/>
   <handlers xmi:id="_gn_boBlEEeuiP60JNw0iiA" elementId="com.minres.scviewer.e4.application.handler.txSearch" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.SearchHandler" command="_XDxTYBlEEeuiP60JNw0iiA"/>
   <handlers xmi:id="_CCEtAB07EeuiP60JNw0iiA" elementId="com.minres.scviewer.e4.application.handler.update" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.UpdateHandler" command="_-9ED4B06EeuiP60JNw0iiA"/>
+  <handlers xmi:id="_ru2NIEYEEeyPM8G0E2EYww" elementId="com.minres.scviewer.e4.application.handler.helpCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.HelpHandler" command="_lqjIYEYEEeyPM8G0E2EYww"/>
+  <handlers xmi:id="_TwU0IEYoEeyKK_icsY7Xjg" elementId="com.minres.scviewer.e4.application.handler.enabletxdetails" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.EnableTxDetails" command="_Fj1gQEYoEeyKK_icsY7Xjg"/>
   <bindingTables xmi:id="_95PfvnNmEeWBq8z1Dv39LA" bindingContext="_95PfuXNmEeWBq8z1Dv39LA">
     <bindings xmi:id="_95Pfv3NmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.keybinding.quit" keySequence="M1+Q" command="_95PfvHNmEeWBq8z1Dv39LA">
       <tags>type:user</tags>
     </bindings>
-  </bindingTables>
-  <bindingTables xmi:id="_zZFy0GVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingtable.waveform" bindingContext="_q4VSsGVNEeqSQM-A6dw9ig">
-    <bindings xmi:id="_1o3dEGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.zoom_in" keySequence="M1++" command="_693GoHcqEeWwZ-9vrAR2UQ">
-      <tags>type:user</tags>
-      <parameters xmi:id="_53UagGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.parameter.33" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="in"/>
-    </bindings>
-    <bindings xmi:id="_8i3awGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.zoom_out" keySequence="M1+-" command="_693GoHcqEeWwZ-9vrAR2UQ">
-      <tags>type:user</tags>
-      <parameters xmi:id="__UCh4GVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.parameter.34" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="out"/>
-    </bindings>
+    <bindings xmi:id="_2-008EhnEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.keybinding.help" keySequence="F1" command="_lqjIYEYEEeyPM8G0E2EYww"/>
   </bindingTables>
   <bindingTables xmi:id="_XullMGVOEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingtable.window" bindingContext="_95PfunNmEeWBq8z1Dv39LA">
     <bindings xmi:id="_95PfwnNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.keybinding.load" keySequence="M1+L" command="_7-AIMJebEeW09eyIbHsdvg">
@@ -169,20 +136,22 @@
     <bindings xmi:id="_3PRIQGVPEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.open" keySequence="M1+O" command="_95PfwHNmEeWBq8z1Dv39LA">
       <tags>type:user</tags>
     </bindings>
-  </bindingTables>
-  <bindingTables xmi:id="_mnMrUGVmEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingtable.0" bindingContext="_iQ3kQGVmEeqSQM-A6dw9ig">
-    <bindings xmi:id="_n9yDwGVmEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.0" keySequence="M1+A" command="_bV-TMHXHEeWwZ-9vrAR2UQ">
+    <bindings xmi:id="_QcOn8EheEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.keybinding.1" keySequence="M1+A" command="_bV-TMHXHEeWwZ-9vrAR2UQ"/>
+    <bindings xmi:id="_1o3dEGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.zoom_in" keySequence="M1++" command="_693GoHcqEeWwZ-9vrAR2UQ">
       <tags>type:user</tags>
+      <parameters xmi:id="_53UagGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.parameter.33" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="in"/>
     </bindings>
+    <bindings xmi:id="_8i3awGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.keybinding.zoom_out" keySequence="M1+-" command="_693GoHcqEeWwZ-9vrAR2UQ">
+      <tags>type:user</tags>
+      <parameters xmi:id="__UCh4GVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.parameter.34" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="out"/>
+    </bindings>
+    <bindings xmi:id="_KjmnsEheEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.keybinding.0" keySequence="M1+R" command="_srACsBkREeudD5MqrWoETQ"/>
   </bindingTables>
   <rootContext xmi:id="_95PfuXNmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.contexts.dialogAndWindow" name="In Dialog and Windows">
-    <children xmi:id="_95PfunNmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.contexts.window" name="In Windows">
-      <children xmi:id="_q4VSsGVNEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingcontext.waveform" name="In Waveform Part"/>
-      <children xmi:id="_iQ3kQGVmEeqSQM-A6dw9ig" elementId="com.minres.scviewer.e4.application.bindingcontext.indesignbrowser" name="In DesignBrowser"/>
-    </children>
+    <children xmi:id="_95PfunNmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.contexts.window" name="In Windows"/>
     <children xmi:id="_95Pfu3NmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.contexts.dialog" name="In Dialogs"/>
   </rootContext>
-  <descriptors xmi:id="_KicY0HRMEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.partdescriptor.waveformviewer" label="SCViewer" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/scviewer.png" bindingContexts="_q4VSsGVNEeqSQM-A6dw9ig" allowMultiple="true" category="General" closeable="true" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.WaveformViewer">
+  <descriptors xmi:id="_KicY0HRMEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.partdescriptor.waveformviewer" label="SCViewer" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/scviewer.png" allowMultiple="true" category="General" closeable="true" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.WaveformViewer">
     <tags>categoryTag:General</tags>
     <handlers xmi:id="_BSIuEHacEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handler.navigateEventCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.NavigateEvent" command="_79rx4HabEeWwZ-9vrAR2UQ"/>
     <handlers xmi:id="_JpdGwHXKEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handler.navigateTransCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.NavigateTrans" command="_Gn3lEHXKEeWwZ-9vrAR2UQ"/>
@@ -191,6 +160,7 @@
     <handlers xmi:id="_Du1NAHcrEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handler.zoomCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.ZoomHandler" command="_693GoHcqEeWwZ-9vrAR2UQ"/>
     <handlers xmi:id="_bxt4QM3rEei6rfTGo88R-w" elementId="com.minres.scviewer.e4.application.handler.changeWaveDisplay" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.ChangeWaveformDisplay" command="_FZunYM2PEei6rfTGo88R-w"/>
     <handlers xmi:id="_bxw7kM3rEei6rfTGo88R-w" elementId="com.minres.scviewer.e4.application.handler.changeValueDisplay" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.ChangeValueDisplay" command="_4C_asM3ZEei6rfTGo88R-w"/>
+    <handlers xmi:id="_ZVHbYE-JEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handler.panCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.PanHandler" command="_y2BUsE-HEeyuGJbYVZjX8w"/>
     <menus xsi:type="menu:PopupMenu" xmi:id="_TwzrsHWSEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.popupmenu.namecontext" label="Name Menu">
       <children xsi:type="menu:HandledMenuItem" xmi:id="_Vco7YHWSEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledmenuitem.moveup" label="Move up" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/up_blue.png" tooltip="Move stream/waveform in list up" command="_N_sOkHXHEeWwZ-9vrAR2UQ">
         <visibleWhen xsi:type="ui:CoreExpression" xmi:id="_elFdcHr_EeWVM_sKoXvptg" coreExpressionId="com.minres.scviewer.e4.application.oneWaveSeleted"/>
@@ -237,7 +207,50 @@
         <visibleWhen xsi:type="ui:ImperativeExpression" xmi:id="_Se1voBlEEeuiP60JNw0iiA" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.SearchHandler"/>
       </children>
     </menus>
+    <toolbar xmi:id="_ReeeAE-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.toolbar.3">
+      <children xsi:type="menu:HandledToolItem" xmi:id="_GKi7IHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.previousevent" label="Previous Event" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/previous-green.png" tooltip="Navigate to previous event in stream/waveform" command="_79rx4HabEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_XS7YYHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.10" name="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir" value="prev"/>
+      </children>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_GjlGMHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.nextevent" label="Next Event" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/next-green.png" tooltip="Navigate to next event in stream/waveform" command="_79rx4HabEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_ZzTqcHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.11" name="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir" value="next"/>
+      </children>
+      <children xsi:type="menu:ToolBarSeparator" xmi:id="_tcxaIHgwEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.toolbarseparator.4"/>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_HdKZkHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.previoustransaction" label="Previous Transaction" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/reverse_green.png" tooltip="Navigate to previous transaction" command="_Gn3lEHXKEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_cuGAkHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.12" name="com.minres.scviewer.e4.application.command.navigateTransCommand.parameter.dir" value="prev"/>
+      </children>
+      <children xsi:type="menu:ToolControl" xmi:id="_LtQhcIuKEeWid7xO48ZBXw" elementId="com.minres.scviewer.e4.application.toolcontrol.0" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.elements.RelationTypeToolControl"/>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_H7bp8HcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.handledtoolitem.nexttransaction" label="Next Transaction" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/play_green.png" tooltip="Navigate to next transaction" command="_Gn3lEHXKEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_fiO8IHcjEeWwZ-9vrAR2UQ" elementId="com.minres.scviewer.e4.application.parameter.13" name="com.minres.scviewer.e4.application.command.navigateTransCommand.parameter.dir" value="next"/>
+      </children>
+      <children xsi:type="menu:ToolBarSeparator" xmi:id="_dOLmYE-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.toolbarseparator.0"/>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_dPFBcE-HEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.panleft" label="Pan left" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/reverse_blue.png" tooltip="Pan left" command="_y2BUsE-HEeyuGJbYVZjX8w">
+        <parameters xmi:id="_jkVBYE-JEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.14" name="com.minres.scviewer.e4.application.command.pancommand.parameter.direction" value="left"/>
+      </children>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_Z-blgE-GEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.pancursor" label="Pan to cursor" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/center_blue.png" tooltip="Center on cursor" command="_y2BUsE-HEeyuGJbYVZjX8w">
+        <parameters xmi:id="_Z-blgU-GEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.out" name="com.minres.scviewer.e4.application.command.pancommand.parameter.direction" value="cursor"/>
+      </children>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_ejt5IE-HEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.panright" label="Pan right" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/play_blue.png" tooltip="Pan right" command="_y2BUsE-HEeyuGJbYVZjX8w">
+        <parameters xmi:id="_f4awUE-JEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.out" name="com.minres.scviewer.e4.application.command.pancommand.parameter.direction" value="right"/>
+      </children>
+      <children xsi:type="menu:ToolBarSeparator" xmi:id="_b7RFoE-GEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.toolbarseparator.1"/>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_qA5D4E-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomfull" label="Zoom full" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/zoom_full.png" tooltip="Zoom full range" command="_693GoHcqEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_qA5D4U-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.full" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="full"/>
+      </children>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_qA65EE-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomfit" label="Zoom fit" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/zoom_fit.png" tooltip="Zoom between cursor and marker" command="_693GoHcqEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_qA65EU-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.fit" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="fit"/>
+      </children>
+      <children xsi:type="menu:ToolBarSeparator" xmi:id="_qA8HME-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.toolbarseparator.1"/>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_qA8uQE-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomin" label="Zoom in" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/magnifier_zoom_in.png" tooltip="Zoom in" command="_693GoHcqEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_qA8uQU-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.in" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="in"/>
+      </children>
+      <children xsi:type="menu:HandledToolItem" xmi:id="_qA98YE-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.handledtoolitem.zoomout" label="Zoom out" iconURI="platform:/plugin/com.minres.scviewer.e4.application/icons/magifier_zoom_out.png" tooltip="Zoom out" command="_693GoHcqEeWwZ-9vrAR2UQ">
+        <parameters xmi:id="_qA98YU-DEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.parameter.out" name="com.minres.scviewer.e4.application.command.zoomcommand.parameter.level" value="out"/>
+      </children>
+    </toolbar>
   </descriptors>
+  <snippets xsi:type="basic:Window" xmi:id="_R8mJUEhwEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.window.help" selectedElement="_R8mJUUhwEeyp3vLifEzGbQ" label="SC Viewer Help" width="800" height="600">
+    <children xsi:type="basic:Part" xmi:id="_R8mJUUhwEeyp3vLifEzGbQ" elementId="com.minres.scviewer.e4.application.part.container" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.help.HelpBrowser"/>
+  </snippets>
   <commands xmi:id="_95PfvHNmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.file.exit" commandName="Quit Command"/>
   <commands xmi:id="_95PfwHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.open" commandName="Open Command"/>
   <commands xmi:id="_95Pfw3NmEeWBq8z1Dv39LA" elementId="org.eclipse.ui.file.save" commandName="Save Command"/>
@@ -280,6 +293,11 @@
   <commands xmi:id="_srACsBkREeudD5MqrWoETQ" elementId="com.minres.scviewer.e4.application.reload" commandName="Reload Command"/>
   <commands xmi:id="_XDxTYBlEEeuiP60JNw0iiA" elementId="com.minres.scviewer.e4.application.txSearch" commandName="Search Command"/>
   <commands xmi:id="_-9ED4B06EeuiP60JNw0iiA" elementId="com.minres.scviewer.e4.application.command.update" commandName="Update"/>
+  <commands xmi:id="_lqjIYEYEEeyPM8G0E2EYww" elementId="org.eclipse.ui.help.helpAction" commandName="Help Command"/>
+  <commands xmi:id="_Fj1gQEYoEeyKK_icsY7Xjg" elementId="com.minres.scviewer.e4.application.command.enabletxdetails" commandName="Enable Tx Details" description="Show tx details parts"/>
+  <commands xmi:id="_y2BUsE-HEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.command.pancommand" commandName="Pan Command">
+    <parameters xmi:id="_y2BUsU-HEeyuGJbYVZjX8w" elementId="com.minres.scviewer.e4.application.command.pancommand.parameter.direction" name="direction" optional="false"/>
+  </commands>
   <addons xmi:id="_95PfsnNmEeWBq8z1Dv39LA" elementId="org.eclipse.e4.core.commands.service" contributionURI="bundleclass://org.eclipse.e4.core.commands/org.eclipse.e4.core.commands.CommandServiceAddon"/>
   <addons xmi:id="_95Pfs3NmEeWBq8z1Dv39LA" elementId="org.eclipse.e4.ui.contexts.service" contributionURI="bundleclass://org.eclipse.e4.ui.services/org.eclipse.e4.ui.services.ContextServiceAddon"/>
   <addons xmi:id="_95PftHNmEeWBq8z1Dv39LA" elementId="org.eclipse.e4.ui.bindings.service" contributionURI="bundleclass://org.eclipse.e4.ui.bindings/org.eclipse.e4.ui.bindings.BindingServiceAddon"/>

plugins/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %Bundle-Name
 Bundle-SymbolicName: com.minres.scviewer.e4.application;singleton:=true
-Bundle-Version: 2.13.0
+Bundle-Version: 2.15.1
 Bundle-Vendor: %Bundle-Vendor
 Require-Bundle: javax.inject;bundle-version="1.0.0",
  org.eclipse.core.runtime;bundle-version="3.11.1",
@@ -38,5 +38,6 @@ Require-Bundle: javax.inject;bundle-version="1.0.0",
  org.eclipse.equinox.p2.metadata.repository;bundle-version="1.3.400"
 Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: com.minres.scviewer.database,
+ javax.annotation;version="1.0.0";resolution:=optional,
  javax.inject;version="1.0.0"
 Automatic-Module-Name: com.minres.scviewer.e4.application

plugins/com.minres.scviewer.e4.application/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>com.minres.scviewer</groupId>
 		<artifactId>com.minres.scviewer.parent</artifactId>
-		<version>2.13.0</version>
+		<version>2.15.1</version>
 		<relativePath>../..</relativePath>
 	</parent>
 	<packaging>eclipse-plugin</packaging>

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

@@ -24,6 +24,7 @@ public class Messages extends NLS {
 	public static String SCViewerPreferencesPage_0;
 	public static String SCViewerPreferencesPage_1;
 	public static String SCViewerPreferencesPage_2;
+	public static String SCViewerPreferencesPage_3;
 	public static String StatusBarControl_1;
 	public static String StatusBarControl_2;
 	public static String StatusBarControl_3;
@@ -82,6 +83,16 @@ public class Messages extends NLS {
 	public static String cursor;
 	public static String cursor_drag;
 	public static String cursor_text;
+	public static String HelpBrowser_7;
+	public static String HelpBrowser_8;
+	public static String HelpDialog_0;
+	public static String HelpDialog_1;
+	public static String HelpDialog_2;
+	public static String HelpDialog_3;
+	public static String HelpDialog_4;
+	public static String HelpDialog_5;
+	public static String HelpDialog_6;
+	public static String HelpDialog_7;
 	public static String marker;
 	public static String marker_text;
 	public static String rel_arrow;

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

@@ -0,0 +1,57 @@
+
+package com.minres.scviewer.e4.application.handlers;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import javax.inject.Inject;
+
+import org.eclipse.core.runtime.preferences.IEclipsePreferences;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.core.di.annotations.Optional;
+import org.eclipse.e4.core.di.extensions.Preference;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.ui.menu.MHandledItem;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+import org.eclipse.e4.ui.workbench.modeling.EPartService;
+import org.osgi.service.prefs.BackingStoreException;
+
+import com.minres.scviewer.e4.application.preferences.PreferenceConstants;
+
+@SuppressWarnings("restriction")
+public class EnableTxDetails {
+	static final String TAG_NAME = "EnableTxDetails"; //$NON-NLS-1$
+
+	static final String ICON_DISABLED = "platform:/plugin/com.minres.scviewer.e4.application/icons/application_side_expand.png"; //$NON-NLS-1$
+	static final String ICON_ENABLED = "platform:/plugin/com.minres.scviewer.e4.application/icons/application_side_contract.png"; //$NON-NLS-1$
+	static final String TOOLTIP_DISABLED = "Show tx details parts";
+	static final String TOOLTIP_ENABLED = "Hide tx details parts";
+	
+	@Inject
+	MApplication application;
+
+	@Inject
+	EPartService partService;
+
+	@Inject
+	@Optional
+	public void reactOnShowHoverChange(EModelService modelService, @Preference(value = PreferenceConstants.SHOW_TX_DETAILS) Boolean show) {
+		List<String> tags = new LinkedList<>();
+		tags.add(TAG_NAME);
+		List<MHandledItem> elements = modelService.findElements(application, null, MHandledItem.class, tags );
+		for( MHandledItem hi : elements ){
+			hi.setSelected(show);
+			hi.setIconURI(show?ICON_ENABLED:ICON_DISABLED);
+			hi.setTooltip(show?TOOLTIP_ENABLED:TOOLTIP_DISABLED);
+		}
+	}
+
+	@Execute
+	public void execute(MHandledItem handledItem, @Preference(nodePath = PreferenceConstants.PREFERENCES_SCOPE) IEclipsePreferences prefs ) {
+		try {
+			prefs.putBoolean(PreferenceConstants.SHOW_TX_DETAILS, handledItem.isSelected());
+			prefs.flush();
+		} catch (BackingStoreException e) {}
+	}
+
+}

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

@@ -0,0 +1,33 @@
+/*******************************************************************************
+ * 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
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     MINRES Technologies GmbH - initial API and implementation
+ *******************************************************************************/
+package com.minres.scviewer.e4.application.handlers;
+
+import org.eclipse.e4.core.di.annotations.CanExecute;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+
+public class HelpHandler {
+
+	static final String WINDOW_ID="com.minres.scviewer.e4.application.window.help"; //$NON-NLS-1$
+	@CanExecute
+	public boolean canExecute(MApplication app) {
+		return !app.getChildren().stream().filter(e -> e.getElementId().equals(WINDOW_ID)).findFirst().isPresent();
+	}
+	
+	@Execute
+	public void execute(MApplication app, MWindow window, EModelService modelService /*@Named("mdialog01.dialog.0") MDialog dialog*/) {
+		MWindow newWin = (MWindow)modelService.cloneSnippet(app, WINDOW_ID, null);
+		app.getChildren().add(newWin);
+	}
+
+}

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

@@ -17,7 +17,6 @@ import org.eclipse.e4.core.di.annotations.CanExecute;
 import org.eclipse.e4.core.di.annotations.Execute;
 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
 import org.eclipse.e4.ui.workbench.modeling.EPartService;
-import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
 import org.eclipse.jface.viewers.IStructuredSelection;
 
 import com.minres.scviewer.database.IWaveform;
@@ -31,12 +30,16 @@ public class NavigateEvent {
 	final static String PARAMTER_ID="com.minres.scviewer.e4.application.command.navigateEventCommand.parameter.dir"; //$NON-NLS-1$
 
 	@CanExecute
-	public Boolean canExecute(ESelectionService selectionService){
-		Object sel = selectionService.getSelection();
+	public Boolean canExecute(EPartService partService){
+		MPart part = partService.getActivePart();
+		if(part.getObject() instanceof WaveformViewer){
+			Object sel = ((WaveformViewer)part.getObject()).getSelection();
 			if( sel instanceof IStructuredSelection) {
+				if(((IStructuredSelection)sel).isEmpty()) return false;
 				Object o= ((IStructuredSelection)sel).getFirstElement();
 				return o instanceof IWaveform || o instanceof ITx || o instanceof TrackEntry;
 			}
+		}
 		return false;
 	}