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

.gitignore

@@ -8,4 +8,5 @@ SCViewer.xcf
 SCViewer_1.png
 copyrightLog.txt
 /workspace
-?*.launch
+?*.launch
+/.settings/

.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>2.11.0</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>2.11.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.1.0-SNAPSHOT</version>

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

@@ -29,6 +29,10 @@
          id="org.eclipse.emf.common"
          version="0.0.0"/>
 
+   <includes
+         id="org.eclipse.collections.feature"
+         version="0.0.0"/>
+
    <requires>
       <import plugin="org.eclipse.core.expressions" version="3.2.0" match="compatible"/>
       <import plugin="org.eclipse.core.filesystem" version="1.3.0" match="compatible"/>

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>2.11.0</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>2.11.0</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>2.11.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <version>1.1.0-SNAPSHOT</version>

p2repositories/com.minres.scviewer.updateSite/.settings/org.eclipse.m2e.core.prefs

@@ -1,4 +0,0 @@
-activeProfiles=
-eclipse.preferences.version=1
-resolveWorkspaceProjects=true
-version=1

p2repositories/com.minres.scviewer.updateSite/pom.xml

@@ -1,86 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.updateSite</artifactId>
-	<version>2.11.0-SNAPSHOT</version>
-	<packaging>eclipse-repository</packaging>
-	<parent>
-		<groupId>com.minres.scviewer</groupId>
-		<artifactId>com.minres.scviewer.parent</artifactId>
-		<version>2.11.0</version>
-		<relativePath>../..</relativePath>
-	</parent>
-    <build>
-        <plugins>
-            <!-- make sure that zipped p2 repositories have the fully qualified version -->
-            <plugin>
-                <groupId>org.eclipse.tycho</groupId>
-                <artifactId>tycho-p2-repository-plugin</artifactId>
-                <version>${tycho-version}</version>
-                <configuration>
-                    <finalName>${project.artifactId}-${qualifiedVersion}</finalName>
-                </configuration>
-            </plugin>
-			<plugin>
-				<groupId>org.codehaus.mojo</groupId>
-				<artifactId>build-helper-maven-plugin</artifactId>
-				<version>3.2.0</version>
-				<executions>
-					<execution>
-						<id>parse-version</id>
-						<goals>
-							<goal>parse-version</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
-        </plugins>
-    </build>
-	<profiles>
-		<profile>
-			<!-- Activate this profile to perform the release to Bintray -->
-			<id>release-composite</id>
-			<activation>
-				<activeByDefault>false</activeByDefault>
-			</activation>
-			<build>
-				<plugins>
-					<plugin>
-						<groupId>com.carrotgarden.maven</groupId>
-						<artifactId>bintray-maven-plugin</artifactId>
-    					<version>1.5.20191113165555</version>
-   						<configuration>
-							<skip>false</skip>
-							<!-- Bintray organization name. -->
-							<subject>minres</subject>
-							<!-- Bintray target repository. -->
-							<repository>eclipse</repository>
-							<!-- Bintray package name. -->
-							<bintrayPackage>SCViewer</bintrayPackage>
-							<bintrayVersion>${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</bintrayVersion>
-							<packageVcsUrl>https://git.minres.com/VP-Tools/SCViewer.git</packageVcsUrl>
-							<!-- Local folder content to sync to the remote repo. -->
-							<sourceFolder>${project.build.directory}/repository</sourceFolder>
-							<!-- Remote folder for local content upload, relative path. -->
-							<targetFolder>scviewer-${parsedVersion.majorVersion}.${parsedVersion.minorVersion}.${parsedVersion.incrementalVersion}</targetFolder>
-
-							<!-- Bintray credentials in settings.xml. -->
-							<serverId>bintray-minres-deploy</serverId>
-						</configuration>
-						<executions>
-							<!-- Activate "bintray:upload" during "package" -->
-							<execution>
-								<phase>package</phase>
-								<goals>
-                                    <goal>upload</goal>
-                                </goals>
-							</execution>
-						</executions>
-					</plugin>
-				</plugins>
-			</build>
-		</profile>
-	</profiles>
-
-</project>

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

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry exported="true" kind="lib" path="json-20180813.jar" sourcepath="json-20180813-sources.jar"/>
-	<classpathentry exported="true" kind="lib" path="leveldb-0.11-SNAPSHOT-uber.jar" sourcepath="leveldb-0.11-SNAPSHOT-sources.jar"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
-	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="output" path="bin"/>
-</classpath>

plugins/com.minres.scviewer.database.leveldb/.gitignore

@@ -1,4 +0,0 @@
-/json-20180813-sources.jar
-/leveldb-0.11-SNAPSHOT-sources.jar
-/bin/
-/target/

plugins/com.minres.scviewer.database.leveldb/.project

@@ -1,33 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>com.minres.scviewer.database.leveldb</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.pde.ManifestBuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.pde.SchemaBuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.pde.ds.core.builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.pde.PluginNature</nature>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>

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

@@ -1,7 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.8

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

@@ -1,4 +0,0 @@
-eclipse.preferences.version=1
-pluginProject.equinox=false
-pluginProject.extensions=false
-resolve.requirebundle=false

plugins/com.minres.scviewer.database.leveldb/.settings/org.eclipse.pde.ds.annotations.prefs

@@ -1,5 +0,0 @@
-eclipse.preferences.version=1
-enabled=true
-path=OSGI-INF
-validationErrorLevel=error
-validationErrorLevel.missingImplicitUnbindMethod=error

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

@@ -1,16 +0,0 @@
-Manifest-Version: 1.0
-Bundle-ManifestVersion: 2
-Bundle-Name: Leveldb
-Bundle-SymbolicName: com.minres.scviewer.database.leveldb
-Bundle-Version: 1.0.0.qualifier
-Bundle-Vendor: MINRES Technologies GmbH
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
-Import-Package: org.osgi.framework;version="1.3.0"
-Automatic-Module-Name: com.minres.scviewer.database.leveldb
-Service-Component: OSGI-INF/*.xml
-Require-Bundle: com.minres.scviewer.database;bundle-version="1.0.0",
- org.eclipse.osgi.services;bundle-version="3.4.0"
-Bundle-ActivationPolicy: lazy
-Bundle-ClassPath: leveldb-0.11-SNAPSHOT-uber.jar,
- .,
- json-20180813.jar

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

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="LevelDbLoader">
-   <implementation class="com.minres.scviewer.database.leveldb.LevelDBLoader"/>
-   <service>
-      <provide interface="com.minres.scviewer.database.IWaveformDbLoader"/>
-   </service>
-</scr:component>

plugins/com.minres.scviewer.database.leveldb/build.properties

@@ -1,7 +0,0 @@
-source.. = src/
-output.. = bin/
-bin.includes = META-INF/,\
-               .,\
-               OSGI-INF/,\
-               leveldb-0.11-SNAPSHOT-uber.jar,\
-               json-20180813.jar

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

@@ -1,13 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	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.leveldb</artifactId>
-	<version>1.0.0-SNAPSHOT</version>
-	<parent>
-		<groupId>com.minres.scviewer</groupId>
-		<artifactId>com.minres.scviewer.parent</artifactId>
-		<version>2.0.0-SNAPSHOT</version>
-		<relativePath>../..</relativePath>
-	</parent>
-	<packaging>eclipse-plugin</packaging>
-</project>

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/LevelDBLoader.java

@@ -1,87 +0,0 @@
-package com.minres.scviewer.database.leveldb;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map.Entry;
-
-import org.iq80.leveldb.Options;
-import org.iq80.leveldb.impl.SeekingIterator;
-import org.json.JSONObject;
-
-import com.minres.scviewer.database.IWaveform;
-import com.minres.scviewer.database.IWaveformDb;
-import com.minres.scviewer.database.IWaveformDbLoader;
-import com.minres.scviewer.database.RelationType;
-
-public class LevelDBLoader implements IWaveformDbLoader {
-
-	static byte[] toByteArray(String value) {
-		return value.getBytes(UTF_8);
-	}
-
-	private TxDBWrapper levelDb;
-	private IWaveformDb db;
-	private Long maxTime=null;
-	private List<RelationType> usedRelationsList = new ArrayList<>();
-	
-	@Override
-	public boolean load(IWaveformDb db, File inp) throws Exception {
-		try {
-			this.db=db;
-			levelDb = new TxDBWrapper(new Options(), inp);
-			JSONObject configVal = new JSONObject(levelDb.get("__config"));
-			if(!configVal.isEmpty())
-				levelDb.setTimeResolution(configVal.getLong("resolution"));
-		} catch(Exception e) {
-			return false;
-		}
-		return true;
-	}
-
-	@Override
-	public Long getMaxTime() {
-		if(maxTime==null) {
-			SeekingIterator<String, String> it = levelDb.iterator();
-			it.seek("st~");
-			Entry<String, String> val = null;
-			while(it.hasNext()) {
-				Entry<String, String>  v = it.next();
-				if(!v.getKey().startsWith("st~")) continue;
-				val=v;
-			}
-			if(val==null) 
-				maxTime = 0L;
-			else {
-				String[] token = val.getKey().split("~");
-				maxTime = Long.parseLong(token[2], 16)*levelDb.getTimeResolution();
-			}
-		}
-		return maxTime;
-	}
-
-	@Override
-	public Collection<IWaveform> getAllWaves() {
-		List<IWaveform> streams=new ArrayList<IWaveform>();
-		SeekingIterator<String, String> it = levelDb.iterator();
-		it.seek("s~");
-		while(it.hasNext()) {
-			Entry<String, String> val = it.next();
-			if(!val.getKey().startsWith("s~")) break;
-			TxStream stream = new TxStream(levelDb, db, new JSONObject(val.getValue()));
-			stream.setRelationTypeList(usedRelationsList);
-			streams.add(stream);
-		}
-		return streams;
-	}
-
-	@Override
-	public Collection<RelationType> getAllRelationTypes() {
-//		return Collections.emptyList();
-		return usedRelationsList;
-	}
-
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/StringDbIterator.java

@@ -1,51 +0,0 @@
-package com.minres.scviewer.database.leveldb;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-import static org.iq80.leveldb.shaded.guava.collect.Maps.immutableEntry;
-
-import java.util.Map.Entry;
-
-import org.iq80.leveldb.DBIterator;
-import org.iq80.leveldb.impl.SeekingIterator;
-
-class StringDbIterator implements SeekingIterator<String, String> {
-	private final DBIterator iterator;
-
-	StringDbIterator(DBIterator iterator) {
-		this.iterator = iterator;
-	}
-
-	@Override
-	public boolean hasNext() {
-		return iterator.hasNext();
-	}
-
-	@Override
-	public void seekToFirst() {
-		iterator.seekToFirst();
-	}
-
-	@Override
-	public void seek(String targetKey) {
-		iterator.seek(targetKey.getBytes(UTF_8));
-	}
-
-	@Override
-	public Entry<String, String> peek() {
-		return adapt(iterator.peekNext());
-	}
-
-	@Override
-	public Entry<String, String> next() {
-		return adapt(iterator.next());
-	}
-
-	@Override
-	public void remove() {
-		throw new UnsupportedOperationException();
-	}
-
-	private Entry<String, String> adapt(Entry<byte[], byte[]> next) {
-		return immutableEntry(new String(next.getKey(), UTF_8), new String(next.getValue(), UTF_8));
-	}
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/Tx.java

@@ -1,172 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import org.iq80.leveldb.impl.SeekingIterator;
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import com.minres.scviewer.database.ITx;
-import com.minres.scviewer.database.ITxAttribute;
-import com.minres.scviewer.database.ITxEvent;
-import com.minres.scviewer.database.ITxGenerator;
-import com.minres.scviewer.database.ITxRelation;
-import com.minres.scviewer.database.ITxStream;
-
-public class Tx implements ITx {
-
-	private TxDBWrapper levelDb;
-	private TxStream trStream;
-	private TxGenerator trGenerator;
-	private long id;
-	private long start_time=0;
-	private long end_time=0;
-	private int concurency_index;
-	private boolean initialized=false;
-	private List<ITxAttribute> attributes;
-	private List<ITxRelation> incoming, outgoing;
-	
-	public Tx(TxDBWrapper levelDb, TxStream trStream, TxGenerator trGenerator, long id) {
-		this.levelDb=levelDb;
-		this.trStream=trStream;
-		this.trGenerator=trGenerator;
-		this.id=id;
-	}
-
-	@Override
-	public Long getId() {
-		return id;
-	}
-
-	@Override
-	public ITxStream<ITxEvent> getStream() {
-		return trStream;
-	}
-
-	@Override
-	public ITxGenerator getGenerator() {
-		return trGenerator;
-	}
-
-	@Override
-	public int getConcurrencyIndex() {
-		if(!initialized) loadFromDb();
-		return concurency_index;
-	}
-
-	@Override
-	public Long getBeginTime() {
-		if(!initialized) loadFromDb();
-		return start_time;
-	}
-
-	@Override
-	public Long getEndTime() {
-		loadFromDb();
-		return end_time;
-	}
-
-	@Override
-	public List<ITxAttribute> getAttributes() {
-		if(attributes==null) {
-			loadFromDb();
-		}
-		return attributes;
-	}
-
-	@Override
-	public Collection<ITxRelation> getIncomingRelations() {
-		if(incoming==null) {
-			incoming = new ArrayList<ITxRelation>();
-			SeekingIterator<String, String> it = levelDb.iterator();
-			String key = "ri~"+String.format("%016x", id);
-			it.seek(key);
-			while(it.hasNext()) {
-				String val = it.next().getKey();
-				if(!val.startsWith(key)) break;;
-				String[] token = val.split("~");
-				long otherId = Long.parseLong(token[2], 16);
-				incoming.add(createRelation(otherId, token[3], false));
-			}
-
-		}
-		return incoming;
-	}
-
-	@Override
-	public Collection<ITxRelation> getOutgoingRelations() {
-		if(outgoing==null) {
-			outgoing = new ArrayList<ITxRelation>();
-			SeekingIterator<String, String> it = levelDb.iterator();
-			String key="ro~"+String.format("%016x", id);
-			it.seek(key);
-			while(it.hasNext()) {
-				String val = it.next().getKey();
-				if(!val.startsWith(key)) break;
-				String[] token = val.split("~");
-				long otherId = Long.parseLong(token[2], 16);
-				outgoing.add(createRelation(otherId, token[3], true));
-			}
-
-		}
-		return outgoing;
-	}
-
-	@Override
-	public int compareTo(ITx o) {
-		int res = this.getBeginTime().compareTo(o.getBeginTime());
-		if(res!=0)	
-			return res;
-		else
-			return this.getId().compareTo(o.getId());
-	}
-
-	@Override
-	public String toString() {
-		return "tx#"+getId()+"["+getBeginTime()/1000000+"ns - "+getEndTime()/1000000+"ns]";
-	}
-	
-	private void loadFromDb() throws JSONException {
-		JSONObject dbVal = new JSONObject(levelDb.get("x~"+ String.format("%016x", id)));
-		start_time=dbVal.getLong("START_TIME") * levelDb.getTimeResolution();
-		end_time=dbVal.getLong("END_TIME") * levelDb.getTimeResolution();
-		concurency_index=dbVal.getInt("conc");
-		attributes=new ArrayList<>();
-		JSONArray arr = dbVal.getJSONArray("attr");
-		arr.forEach(entry -> {
-			TxAttribute attr = new TxAttribute(this, (JSONObject) entry);
-			attributes.add(attr);
-		});
-		initialized=true;
-	}
-
-	private ITxRelation createRelation(long otherId, String name, boolean outgoing) {
-		try {
-			JSONObject otherTxVal = new JSONObject(levelDb.get("x~"+ String.format("%016x", otherId)));
-			if(otherTxVal.isEmpty()) return null;
-			JSONObject otherStreamVal = new JSONObject(levelDb.get("s~"+ String.format("%016x", otherTxVal.getLong("s"))));
-			if(otherStreamVal.isEmpty()) return null;
-			TxStream tgtStream = (TxStream) trStream.getDb().getStreamByName(otherStreamVal.getString("name"));
-			Tx that = (Tx) tgtStream.getTransactions().get(otherId);
-			return outgoing?
-					new TxRelation(trStream.getRelationType(name), this, that):
-						new TxRelation(trStream.getRelationType(name), that, this);
-		} catch (SecurityException | IllegalArgumentException | JSONException e) {
-			e.printStackTrace();
-		}
-		return null;		
-	}
-
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxAttribute.java

@@ -1,56 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import org.json.JSONObject;
-
-import com.minres.scviewer.database.AssociationType;
-import com.minres.scviewer.database.DataType;
-import com.minres.scviewer.database.ITxAttribute;
-
-public class TxAttribute implements ITxAttribute{
-
-	private String name;
-	
-	private DataType dataType;
-	
-	private AssociationType associationType;
-
-	private Object value;
-	
-	public TxAttribute(Tx trTransaction, JSONObject attribute) {
-		this.name=attribute.getString("name");
-		this.dataType=DataType.values()[attribute.getInt("type")];
-		this.associationType=AssociationType.values()[attribute.getInt("assoc")];
-		this.value=attribute.get("value");
-	}
-
-	@Override
-	public String getName() {
-		return name;
-	}
-
-	@Override
-	public DataType getDataType() {
-		return dataType;
-	}
-
-	@Override
-	public AssociationType getType() {
-		return associationType;
-	}
-
-	@Override
-	public Object getValue() {
-		return value;
-	}
-
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxDBWrapper.java

@@ -1,90 +0,0 @@
-package com.minres.scviewer.database.leveldb;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-
-import java.io.File;
-import java.io.IOException;
-
-import org.iq80.leveldb.Options;
-import org.iq80.leveldb.Range;
-import org.iq80.leveldb.ReadOptions;
-import org.iq80.leveldb.Snapshot;
-import org.iq80.leveldb.impl.DbImpl;
-import org.iq80.leveldb.impl.SeekingIterator;
-
-class TxDBWrapper {
-	private final Options options;
-	private final ReadOptions ro = new ReadOptions();
-	private final File databaseDir;
-	private DbImpl db;
-	private long timeResolution=1L;;
-
-	TxDBWrapper(Options options, File databaseDir) throws IOException {
-		this.options = options.verifyChecksums(true).createIfMissing(false).errorIfExists(false).cacheSize(64*1024*1024);
-		this.databaseDir = databaseDir;
-		this.db = new DbImpl(options, databaseDir);
-		ro.snapshot(db.getSnapshot());
-	}
-
-	public String get(String key) {
-		byte[] slice = db.get(LevelDBLoader.toByteArray(key));
-		if (slice == null) {
-			return null;
-		}
-		return new String(slice, UTF_8);
-	}
-
-	public String get(String key, Snapshot snapshot) {
-		byte[] slice = db.get(LevelDBLoader.toByteArray(key), ro);
-		return slice == null? null : new String(slice, UTF_8);
-	}
-
-	public void put(String key, String value) {
-		db.put(LevelDBLoader.toByteArray(key), LevelDBLoader.toByteArray(value));
-	}
-
-	public void delete(String key) {
-		db.delete(LevelDBLoader.toByteArray(key));
-	}
-
-	public SeekingIterator<String, String> iterator() {
-		return new StringDbIterator(db.iterator());
-	}
-
-	public Snapshot getSnapshot() {
-		return db.getSnapshot();
-	}
-
-	public void close() {
-		try {
-			ro.snapshot().close();
-			db.close();
-		} catch (IOException e) {} // ignore any error
-	}
-
-	public long size(String start, String limit) {
-		return db.getApproximateSizes(new Range(LevelDBLoader.toByteArray(start), LevelDBLoader.toByteArray(limit)));
-	}
-
-	public long getMaxNextLevelOverlappingBytes() {
-		return db.getMaxNextLevelOverlappingBytes();
-	}
-
-	public void reopen() throws IOException {
-		reopen(options);
-	}
-
-	public void reopen(Options options) throws IOException {
-		this.close();
-		db = new DbImpl(options.verifyChecksums(true).createIfMissing(false).errorIfExists(false), databaseDir);
-		ro.snapshot(db.getSnapshot());
-	}
-	
-	public long getTimeResolution() {
-		return timeResolution;
-	}
-	
-	public void setTimeResolution(long resolution) {
-		this.timeResolution = resolution;
-	}
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxEvent.java

@@ -1,57 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import com.minres.scviewer.database.ITx;
-import com.minres.scviewer.database.ITxEvent;
-import com.minres.scviewer.database.IWaveformEvent;
-
-public class TxEvent implements ITxEvent {
-
-	private final Type type;
-	private ITx tx;
-	
-	public TxEvent(Type type, ITx tx) {
-		super();
-		this.type = type;
-		this.tx = tx;
-	}
-
-	@Override
-	public Long getTime() {
-		return type==Type.BEGIN?tx.getBeginTime():tx.getEndTime();
-	}
-
-	@Override
-	public IWaveformEvent duplicate() throws CloneNotSupportedException {
-		return new TxEvent(type, tx);
-	}
-
-	@Override
-	public int compareTo(IWaveformEvent o) {
-		return getTime().compareTo(o.getTime());
-	}
-
-	@Override
-	public ITx getTransaction() {
-		return tx;
-	}
-
-	@Override
-	public Type getType() {
-		return type;
-	}
-
-	@Override
-	public String toString() {
-		return type.toString()+"@"+getTime()+" of tx #"+tx.getId();
-	}
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxGenerator.java

@@ -1,56 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import java.util.List;
-
-import org.json.JSONObject;
-
-import com.minres.scviewer.database.ITx;
-import com.minres.scviewer.database.ITxEvent;
-import com.minres.scviewer.database.ITxGenerator;
-import com.minres.scviewer.database.ITxStream;
-
-public class TxGenerator implements ITxGenerator {
-
-	private ITxStream<ITxEvent>  stream;
-	
-	private long id;
-	
-	private String name;
-
-	public TxGenerator(ITxStream<ITxEvent>  stream, JSONObject object) {
-		this.stream=stream;
-		this.id=object.getLong("id");
-		this.name=object.getString("name");
-	}
-
-	@Override
-	public Long getId() {
-		return id;
-	}
-
-	@Override
-	public ITxStream<ITxEvent> getStream() {
-		return stream;
-	}
-
-	@Override
-	public String getName() {
-		return name;
-	}
-
-	@Override
-	public List<ITx> getTransactions() {
-		return null;
-	}
-
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxRelation.java

@@ -1,43 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import com.minres.scviewer.database.ITxRelation;
-import com.minres.scviewer.database.ITx;
-import com.minres.scviewer.database.RelationType;
-
-public class TxRelation implements ITxRelation {
-
-	RelationType relationType;
-	Tx source, target;
-
-	public TxRelation(RelationType relationType, Tx source, Tx target) {
-		this.source = source;
-		this.target = target;
-		this.relationType = relationType;
-	}
-
-	@Override
-	public RelationType getRelationType() {
-		return relationType;
-	}
-
-	@Override
-	public ITx getSource() {
-		return source;
-	}
-
-	@Override
-	public ITx getTarget() {
-		return target;
-	}
-
-}

plugins/com.minres.scviewer.database.leveldb/src/com/minres/scviewer/database/leveldb/TxStream.java

@@ -1,178 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2015 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.leveldb;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-
-import org.iq80.leveldb.impl.SeekingIterator;
-import org.json.JSONObject;
-
-import java.util.NavigableMap;
-import java.util.TreeMap;
-import java.util.Vector;
-
-import com.minres.scviewer.database.HierNode;
-import com.minres.scviewer.database.ITx;
-import com.minres.scviewer.database.ITxEvent;
-import com.minres.scviewer.database.ITxGenerator;
-import com.minres.scviewer.database.ITxStream;
-import com.minres.scviewer.database.IWaveform;
-import com.minres.scviewer.database.IWaveformDb;
-import com.minres.scviewer.database.RelationType;
-
-public class TxStream extends HierNode implements ITxStream<ITxEvent> {
-
-	private TxDBWrapper levelDb;
-
-	private String fullName;
-	
-	private String kind;
-
-	private IWaveformDb db;
-		
-	private long id;
-	
-	private TreeMap<Long, TxGenerator> generators;
-	
-	private TreeMap<Long, ITx> transactions;
-	
-	private Integer maxConcurrency;
-	
-	private TreeMap<Long, List<ITxEvent>> events;
-
-	private List<RelationType> usedRelationsList;
-	
-	public TxStream(TxDBWrapper database, IWaveformDb waveformDb, JSONObject object) {
-		super(object.get("name").toString());
-		this.levelDb=database;
-		this.db=waveformDb;
-		this.fullName=object.getString("name");
-		this.kind=object.getString("kind");
-		this.id = object.getLong("id");
-	}
-
-	@Override
-	public IWaveformDb getDb() {
-		return db;
-	}
-
-	@Override
-	public String getFullName() {
-		return fullName;
-	}
-
-	@Override
-	public Long getId() {
-		return id;
-	}
-
-	@Override
-	public String getKind() {
-		return kind;
-	}
-
-	@Override
-	public List<ITxGenerator> getGenerators() {
-		if(generators==null){
-			generators=new TreeMap<Long, TxGenerator>();
-			SeekingIterator<String, String> it = levelDb.iterator();
-			String key="sg~"+String.format("%016x", id);
-			it.seek(key);
-			while(it.hasNext()) {
-				Entry<String, String> val = it.next();
-				if(!val.getKey().startsWith(key)) break;
-				JSONObject jVal = new JSONObject(val.getValue());
-				generators.put(jVal.getLong("id"), new TxGenerator(this, jVal));
-			}
-		}
-		return new ArrayList<ITxGenerator>(generators.values());
-	}
-
-	@Override
-	public int getMaxConcurrency() {
-		if(maxConcurrency==null){
-				getTransactions();
-		}
-		return maxConcurrency;
-	}
-
-	@Override
-	public  NavigableMap<Long, List<ITxEvent>> getEvents(){
-		if(events==null){
-			events=new TreeMap<Long, List<ITxEvent>>();
-			for(Entry<Long, ITx> entry:getTransactions().entrySet()){
-				ITx tx = entry.getValue();
-				putEvent(new TxEvent(TxEvent.Type.BEGIN, tx));
-				putEvent(new TxEvent(TxEvent.Type.END, tx));
-			}	
-		}
-		return events;
-	}
-
-	private void putEvent(TxEvent ev){
-		Long time = ev.getTime();
-		if(!events.containsKey(time)){
-			Vector<ITxEvent> vector=new Vector<ITxEvent>();
-			vector.add(ev);
-			events.put(time,  vector);
-		} else {
-			events.get(time).add(ev);
-		}
-	}
-
-	protected Map<Long, ITx> getTransactions() {
-		if(transactions==null){
-			if(generators==null) getGenerators();
-			transactions = new TreeMap<Long, ITx>();
-			maxConcurrency=0;
-			SeekingIterator<String, String> it = levelDb.iterator();
-			String key = "sgx~"+String.format("%016x", id);
-			it.seek(key);
-			while(it.hasNext()) {
-				Entry<String, String> val = it.next();
-				if(!val.getKey().startsWith(key)) break;
-				String[] token = val.getKey().split("~");
-				long gid = Long.parseLong(token[2], 16); // gen id
-				long id = Long.parseLong(token[3], 16); // tx id
-				ITx tx = new Tx(levelDb, this, generators.get(gid), id);
-				transactions.put(id, tx);
-				maxConcurrency= Math.max(maxConcurrency, tx.getConcurrencyIndex());
-			}
-			maxConcurrency++;
-		}
-		return transactions;
-	}
-
-	@Override
-	public Collection<ITxEvent> getWaveformEventsAtTime(Long time) {
-		return getEvents().get(time);
-	}
-
-	public void setRelationTypeList(List<RelationType> usedRelationsList){
-		this.usedRelationsList=usedRelationsList;
-	}
-	
-	public RelationType getRelationType(String name) {
-		RelationType relType=RelationType.create(name);
-		if(!usedRelationsList.contains(relType)) usedRelationsList.add(relType);
-		return relType;
-	}
-
-	@Override
-	public Boolean equals(IWaveform other) {
-		return(other instanceof TxStream && this.getId()==other.getId());
-	}
-
-}

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

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<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="sqlite-jdbc-3.8.7.jar"/>

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

@@ -1,8 +1,10 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

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

@@ -4,7 +4,7 @@ Bundle-Name: SQLite transaction database
 Bundle-SymbolicName: com.minres.scviewer.database.sqlite
 Bundle-Version: 1.1.0.qualifier
 Bundle-Vendor: MINRES Technologies GmbH
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: com.minres.scviewer.database;bundle-version="1.0.0"
 Bundle-ClassPath: .,sqlite-jdbc-3.8.7.jar
 Service-Component: OSGI-INF/component.xml

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>2.11.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
   <packaging>eclipse-plugin</packaging>

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

@@ -14,12 +14,13 @@ import java.sql.SQLException;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
-import java.util.NavigableMap;
-import java.util.TreeMap;
 
+import com.minres.scviewer.database.EventEntry;
 import com.minres.scviewer.database.EventKind;
 import com.minres.scviewer.database.HierNode;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IEventList;
+import com.minres.scviewer.database.EventList;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.RelationType;
 import com.minres.scviewer.database.RelationTypeFactory;
@@ -35,18 +36,18 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	
 	private Integer maxConcurrency;
 
-	private TreeMap<Long, IEvent[]> events;
+	private IEventList events;
 
 	private List<RelationType> usedRelationsList;
 
-	public AbstractTxStream(IDatabase database, String name, long streamId) {
+	protected AbstractTxStream(IDatabase database, String name, long streamId) {
 		super(name);
 		this.database=database;
 		this.streamId=streamId;
 	}
 
 	@Override
-	public int getWidth() {
+	public int getRowCount() {
 		if(maxConcurrency==null){
 			StringBuilder sb = new StringBuilder();
 			sb.append("SELECT MAX(concurrencyLevel) as concurrencyLevel FROM ScvTx where stream=");
@@ -71,9 +72,9 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	}
 
 	@Override
-	public  NavigableMap<Long, IEvent[]> getEvents(){
+	public  IEventList getEvents(){
 		if(events==null){
-			events=new TreeMap<>();
+			events=new EventList();
 			for(Entry<Integer, ITx> entry:getTransactions().entrySet()){
 				putEvent(new TxEvent(EventKind.BEGIN, entry.getValue()));
 				putEvent(new TxEvent(EventKind.END, entry.getValue()));
@@ -83,22 +84,13 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	}
 
 	private void putEvent(TxEvent ev){
-		Long time = ev.getTime();
-		if(events.containsKey(time)) {
-			IEvent[] oldV = events.get(time);
-			IEvent[] newV = new IEvent[oldV.length+1];
-			System.arraycopy(oldV, 0, newV, 0, oldV.length);
-			newV[oldV.length]=ev;
-			events.put(time, newV);
-		} else {
-			events.put(time, new IEvent[] {ev});
-		}
+		events.put(ev.getTime(), ev);
 	}
 
 	protected abstract Map<Integer, ITx> getTransactions();
 
 	@Override
-	public IEvent[] getEventsAtTime(Long time) {
+	public IEvent[] getEventsAtTime(long time) {
 		return getEvents().get(time);
 	}
 
@@ -113,12 +105,12 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	}
 
 	@Override
-	public IEvent[] getEventsBeforeTime(Long time) {
-		Entry<Long, IEvent[]> e = events.floorEntry(time);
+	public IEvent[] getEventsBeforeTime(long time) {
+		EventEntry e = events.floorEntry(time);
 		if(e==null)
 			return new IEvent[]{};
 		else
-			return  events.floorEntry(time).getValue();
+			return  events.floorEntry(time).events;
 	}
 
 	@Override
@@ -126,4 +118,11 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 		return WaveformType.TRANSACTION;
 	}
 
+	/**
+	 * Calculate concurrency.
+	 */
+	public void calculateConcurrency() {
+	}
+
+
 }

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

@@ -48,7 +48,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 	protected PropertyChangeSupport pcs = new PropertyChangeSupport(this);
 
 	@Override
-	public Long getMaxTime() {
+	public long getMaxTime() {
 		SQLiteDatabaseSelectHandler<ScvTxEvent> handler = new SQLiteDatabaseSelectHandler<>(ScvTxEvent.class,
 				database, "time = (SELECT MAX(time) FROM ScvTxEvent)");
 		try {
@@ -56,7 +56,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 			if(!event.isEmpty())
 				return event.get(0).getTime()*scvSimProps.getTime_resolution();
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			e.printStackTrace();
 		}
 		return 0L;
@@ -73,7 +73,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 				streams.add(stream);
 			}
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 		}
 		return streams;
 	}
@@ -99,7 +99,6 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 
 	@Override
 	public void load(IWaveformDb db, File file) throws InputFormatException {
-		dispose();
 		database=new SQLiteDatabase(file.getAbsolutePath(), db);
 		database.setData("TIMERESOLUTION", 1L);
 		SQLiteDatabaseSelectHandler<ScvSimProps> handler = new SQLiteDatabaseSelectHandler<>(ScvSimProps.class, database);
@@ -110,7 +109,7 @@ public class SQLiteDbLoader implements IWaveformDbLoader {
 			}
 			pcs.firePropertyChange(IWaveformDbLoader.LOADING_FINISHED, null, null);
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			throw new InputFormatException(e.toString());
 		}
 	}

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

@@ -28,7 +28,6 @@ import com.minres.scviewer.database.sqlite.tables.ScvTxEvent;
 import com.minres.scviewer.database.sqlite.tables.ScvTxRelation;
 import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxAttribute;
-import com.minres.scviewer.database.tx.ITxGenerator;
 import com.minres.scviewer.database.tx.ITxRelation;
 
 public class Tx implements ITx {
@@ -38,8 +37,8 @@ public class Tx implements ITx {
 	private TxGenerator trGenerator;
 	private ScvTx scvTx;
 	private List<ITxAttribute> attributes;
-	private Long begin;
-	private Long end;
+	private long begin=-1;
+	private long end=-1;
 	private List<ITxRelation> incoming;
 	private List<ITxRelation> outgoing;
 	
@@ -51,7 +50,7 @@ public class Tx implements ITx {
 	}
 
 	@Override
-	public Long getId() {
+	public long getId() {
 		return (long) scvTx.getId();
 	}
 
@@ -61,18 +60,17 @@ public class Tx implements ITx {
 	}
 
 	@Override
-	public ITxGenerator getGenerator() {
+	public IWaveform getGenerator() {
 		return trGenerator;
 	}
 
-	@Override
-	public int getConcurrencyIndex() {
+	int getConcurrencyIndex() {
 		return scvTx.getConcurrencyLevel();
 	}
 
 	@Override
-	public Long getBeginTime() {
-		if(begin==null){
+	public long getBeginTime() {
+		if(begin<0){
 		SQLiteDatabaseSelectHandler<ScvTxEvent> handler = new SQLiteDatabaseSelectHandler<>(ScvTxEvent.class,
 				database, "tx="+scvTx.getId()+" AND type="+ AssociationType.BEGIN.ordinal());
 		try {
@@ -80,15 +78,15 @@ public class Tx implements ITx {
 				begin= scvEvent.getTime()*(Long)database.getData("TIMERESOLUTION");
 			}
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 		}
 		}
 		return begin;
 	}
 
 	@Override
-	public Long getEndTime() {
-		if(end==null){
+	public long getEndTime() {
+		if(end<0){
 		SQLiteDatabaseSelectHandler<ScvTxEvent> handler = new SQLiteDatabaseSelectHandler<>(ScvTxEvent.class,
 				database, "tx="+scvTx.getId()+" AND type="+ AssociationType.END.ordinal());
 		try {
@@ -96,7 +94,7 @@ public class Tx implements ITx {
 				end = scvEvent.getTime()*(Long)database.getData("TIMERESOLUTION");
 			}
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 		}
 		}
 		return end;
@@ -114,7 +112,7 @@ public class Tx implements ITx {
 					
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			}
 		}
 		return attributes;
@@ -131,7 +129,7 @@ public class Tx implements ITx {
 					incoming.add(createRelation(scvRelation, false));
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			}
 		}
 		return incoming;
@@ -148,7 +146,7 @@ public class Tx implements ITx {
 					outgoing.add(createRelation(scvRelation, true));
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			}
 		}
 		return outgoing;
@@ -171,7 +169,7 @@ public class Tx implements ITx {
 			else
 				return new TxRelation(trStream.getRelationType(rel.getName()), that, this);
 		} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-				| InvocationTargetException | SQLException | IntrospectionException e) {
+				| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 			e.printStackTrace();
 		}
 
@@ -180,11 +178,11 @@ public class Tx implements ITx {
 
 	@Override
 	public int compareTo(ITx o) {
-		int res = this.getBeginTime().compareTo(o.getBeginTime());
+		int res = Long.compare(this.getBeginTime(), o.getBeginTime());
 		if(res!=0)	
 			return res;
 		else
-			return this.getId().compareTo(o.getId());
+			return Long.compare(this.getId(), o.getId());
 	}
 
 	@Override

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

@@ -28,7 +28,7 @@ public class TxEvent implements ITxEvent {
 	}
 
 	@Override
-	public Long getTime() {
+	public long getTime() {
 		return type==EventKind.BEGIN?tx.getBeginTime():tx.getEndTime();
 	}
 
@@ -56,4 +56,10 @@ public class TxEvent implements ITxEvent {
 	public WaveformType getType() {
 		return WaveformType.TRANSACTION;
 	}
+
+	@Override
+	public int getRowIndex() {
+		return ((Tx)tx).getConcurrencyIndex();
+	}
+
 }

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

@@ -22,9 +22,8 @@ import com.minres.scviewer.database.sqlite.db.SQLiteDatabaseSelectHandler;
 import com.minres.scviewer.database.sqlite.tables.ScvGenerator;
 import com.minres.scviewer.database.sqlite.tables.ScvTx;
 import com.minres.scviewer.database.tx.ITx;
-import com.minres.scviewer.database.tx.ITxGenerator;
 
-public class TxGenerator extends AbstractTxStream implements ITxGenerator {
+public class TxGenerator extends AbstractTxStream {
 
 	private TxStream  stream;
 	
@@ -40,15 +39,10 @@ public class TxGenerator extends AbstractTxStream implements ITxGenerator {
 	}
 
 	@Override
-	public Long getId() {
+	public long getId() {
 		return (long) scvGenerator.getId();
 	}
 
-	@Override
-	public IWaveform getStream() {
-		return stream;
-	}
-
 	@Override
 	public String getName() {
 		return scvGenerator.getName();
@@ -56,7 +50,7 @@ public class TxGenerator extends AbstractTxStream implements ITxGenerator {
 
 	@Override
 	public boolean isSame(IWaveform other) {
-		return(other instanceof TxGenerator && this.getId().equals(other.getId()));
+		return(other instanceof TxGenerator && this.getId() == other.getId());
 	}
 
 	@Override
@@ -75,7 +69,7 @@ public class TxGenerator extends AbstractTxStream implements ITxGenerator {
 					transactions.put(scvTx.getId(), new Tx(database, (TxStream) stream, this, scvTx));
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 				e.printStackTrace();
 			}
 		}

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

@@ -26,7 +26,6 @@ import com.minres.scviewer.database.sqlite.tables.ScvGenerator;
 import com.minres.scviewer.database.sqlite.tables.ScvStream;
 import com.minres.scviewer.database.sqlite.tables.ScvTx;
 import com.minres.scviewer.database.tx.ITx;
-import com.minres.scviewer.database.tx.ITxGenerator;
 
 public class TxStream extends AbstractTxStream {
 
@@ -50,11 +49,11 @@ public class TxStream extends AbstractTxStream {
 	}
 
 	@Override
-	public Long getId() {
+	public long getId() {
 		return (long) scvStream.getId();
 	}
 
-	public List<ITxGenerator> getGenerators() {
+	public List<IWaveform> getGenerators() {
 		if(generators==null){
 			SQLiteDatabaseSelectHandler<ScvGenerator> handler = new SQLiteDatabaseSelectHandler<>(
 					ScvGenerator.class, database, "stream="+scvStream.getId());
@@ -64,7 +63,7 @@ public class TxStream extends AbstractTxStream {
 					generators.put(scvGenerator.getId(), new TxGenerator(database, this, scvGenerator));
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 				e.printStackTrace();
 			}
 		}
@@ -82,7 +81,7 @@ public class TxStream extends AbstractTxStream {
 					transactions.put(scvTx.getId(), new Tx(database, this, generators.get(scvTx.getGenerator()), scvTx));
 				}
 			} catch (SecurityException | IllegalArgumentException | InstantiationException | IllegalAccessException
-					| InvocationTargetException | SQLException | IntrospectionException e) {
+					| InvocationTargetException | SQLException | IntrospectionException | NoSuchMethodException e) {
 				e.printStackTrace();
 			}
 		}
@@ -90,13 +89,13 @@ public class TxStream extends AbstractTxStream {
 	}
 
 	@Override
-	public IEvent[] getEventsAtTime(Long time) {
+	public IEvent[] getEventsAtTime(long time) {
 		return getEvents().get(time);
 	}
 
 	@Override
 	public boolean isSame(IWaveform other) {
-		return(other instanceof TxStream && this.getId().equals(other.getId()));
+		return(other instanceof TxStream && this.getId() == other.getId());
 	}
 
 	@Override

plugins/com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/db/SQLiteDatabaseSelectHandler.java

@@ -75,10 +75,11 @@ public class SQLiteDatabaseSelectHandler<T> extends AbstractDatabaseHandler<T> {
 	 * @throws IllegalAccessException
 	 * @throws IntrospectionException
 	 * @throws InvocationTargetException
+	 * @throws NoSuchMethodException 
 	 */
 	public synchronized List<T> selectObjects() throws SQLException,
 			InstantiationException, IllegalAccessException,
-			IntrospectionException, InvocationTargetException {
+			IntrospectionException, InvocationTargetException, IllegalArgumentException, NoSuchMethodException, SecurityException {
 
 		Connection connection = null;
 		Statement statement = null;
@@ -113,17 +114,18 @@ public class SQLiteDatabaseSelectHandler<T> extends AbstractDatabaseHandler<T> {
 	 * @throws IllegalAccessException
 	 * @throws IntrospectionException
 	 * @throws InvocationTargetException
+	 * @throws NoSuchMethodException 
 	 */
 	private List<T> createObjects(ResultSet resultSet)
 			throws SQLException, InstantiationException,
 			IllegalAccessException, IntrospectionException,
-			InvocationTargetException {
+			InvocationTargetException, IllegalArgumentException, NoSuchMethodException, SecurityException {
 
 		List<T> list = new ArrayList<>();
 
 		while (resultSet.next()) {
 
-			T instance = type.newInstance();
+			T instance = type.getDeclaredConstructor().newInstance();
 
 			for (Field field : type.getDeclaredFields()) {
 

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

@@ -1,17 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
+	<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/.settings/org.eclipse.jdt.core.prefs

@@ -1,9 +1,11 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+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.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

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

@@ -2,9 +2,9 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Textual transaction database
 Bundle-SymbolicName: com.minres.scviewer.database.text
-Bundle-Version: 3.0.0.qualifier
+Bundle-Version: 4.0.1.qualifier
 Bundle-Vendor: MINRES Technologies GmbH
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: org.osgi.framework;version="1.3.0"
 Require-Bundle: com.minres.scviewer.database,
  org.eclipse.osgi.services;bundle-version="3.4.0",

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

@@ -2,44 +2,13 @@
 	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>3.0.0-SNAPSHOT</version>
+	<version>4.0.1-SNAPSHOT</version>
 	<parent>
 		<groupId>com.minres.scviewer</groupId>
 		<artifactId>com.minres.scviewer.parent</artifactId>
-		<version>2.11.0</version>
+		<version>2.15.1</version>
 		<relativePath>../..</relativePath>
 	</parent>
 	<packaging>eclipse-plugin</packaging>
 	
-	<build>
-		<plugins>
-			<plugin>
-				<groupId>org.eclipse.tycho</groupId>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>3.8.0</version>
-				<configuration>
-					<compilerId>groovy-eclipse-compiler</compilerId>
-			        <compilerArguments>
-			            <indy/><!-- optional; supported by batch 2.4.12-04+ -->
-			        </compilerArguments>
-					<!-- set verbose to be true if you want lots of uninteresting messages -->
-					<!-- <verbose>true</verbose> -->
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-				<dependencies>
-					<dependency>
-						<groupId>org.codehaus.groovy</groupId>
-						<artifactId>groovy-eclipse-compiler</artifactId>
-						<version>${groovy-eclipse-compiler-version}</version>
-					</dependency>
-					<dependency>
-						<groupId>org.codehaus.groovy</groupId>
-						<artifactId>groovy-eclipse-batch</artifactId>
-						<version>${groovy-eclipse-batch-version}</version>
-					</dependency>
-				</dependencies>
-			</plugin>
-		</plugins>
-	</build>
 </project>

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

@@ -12,16 +12,16 @@
 package com.minres.scviewer.database.text;
 
 import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Map.Entry;
-import java.util.NavigableMap;
-import java.util.TreeMap;
+import java.util.HashMap;
 
-import com.minres.scviewer.database.EventKind;
+import com.minres.scviewer.database.EventEntry;
+import com.minres.scviewer.database.EventList;
 import com.minres.scviewer.database.HierNode;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IEventList;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.WaveformType;
+import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxEvent;
 
 /**
@@ -29,6 +29,8 @@ import com.minres.scviewer.database.tx.ITxEvent;
  */
 abstract class AbstractTxStream extends HierNode implements IWaveform {
 
+	private final String fullName;
+
 	/** The id. */
 	private Long id;
 
@@ -36,10 +38,10 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	protected TextDbLoader loader;
 
 	/** The events. */
-	TreeMap<Long, IEvent[]> events = new TreeMap<>();
+	IEventList events = new EventList();
 
-	/** The concurrency calculated. */
-	boolean concurrencyCalculated = false;
+	/** The max concurrency. */
+	private int rowCount = -1;
 
 	/**
 	 * Instantiates a new abstract tx stream.
@@ -48,26 +50,29 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	 * @param id     the id
 	 * @param name   the name
 	 */
-	public AbstractTxStream(TextDbLoader loader, Long id, String name) {
+	protected AbstractTxStream(TextDbLoader loader, Long id, String name) {
 		super(name);
+		fullName=name;
 		this.loader = loader;
 		this.id = id;
 	}
 
+	/**
+	 * Gets the full hierarchical name.
+	 *
+	 * @return the full name
+	 */
+	@Override
+	public String getFullName() {
+		return  fullName;
+	}
 	/**
 	 * Adds the event.
 	 *
 	 * @param evt the evt
 	 */
 	public void addEvent(ITxEvent evt) {
-		if (!events.containsKey(evt.getTime()))
-			events.put(evt.getTime(), new IEvent[] { evt });
-		else {
-			IEvent[] evts = events.get(evt.getTime());
-			IEvent[] newEvts = Arrays.copyOf(evts, evts.length + 1);
-			newEvts[evts.length] = evt;
-			events.put(evt.getTime(), newEvts);
-		}
+		events.put(evt.getTime(), evt);
 	}
 
 	/**
@@ -76,9 +81,7 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	 * @return the events
 	 */
 	@Override
-	public NavigableMap<Long, IEvent[]> getEvents() {
-		if (!concurrencyCalculated)
-			calculateConcurrency();
+	public IEventList getEvents() {
 		return events;
 	}
 
@@ -89,9 +92,7 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	 * @return the events at time
 	 */
 	@Override
-	public IEvent[] getEventsAtTime(Long time) {
-		if (!concurrencyCalculated)
-			calculateConcurrency();
+	public IEvent[] getEventsAtTime(long time) {
 		return events.get(time);
 	}
 
@@ -102,14 +103,12 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	 * @return the events before time
 	 */
 	@Override
-	public IEvent[] getEventsBeforeTime(Long time) {
-		if (!concurrencyCalculated)
-			calculateConcurrency();
-		Entry<Long, IEvent[]> e = events.floorEntry(time);
+	public IEvent[] getEventsBeforeTime(long time) {
+		EventEntry e = events.floorEntry(time);
 		if (e == null)
 			return new IEvent[] {};
 		else
-			return events.floorEntry(time).getValue();
+			return events.floorEntry(time).events;
 	}
 
 	/**
@@ -128,32 +127,63 @@ abstract class AbstractTxStream extends HierNode implements IWaveform {
 	 * @return the id
 	 */
 	@Override
-	public Long getId() {
+	public long getId() {
 		return id;
 	}
 
+	/**
+	 * Gets the width.
+	 *
+	 * @return the width
+	 */
+	@Override
+	public int getRowCount() {
+		if (rowCount<0)
+			calculateConcurrency();
+		return rowCount;
+	}
+
 	/**
 	 * Calculate concurrency.
 	 */
-	synchronized void calculateConcurrency() {
-		if (concurrencyCalculated)
+	void calculateConcurrency() {
+		if (rowCount>=0)
 			return;
-		ArrayList<Long> rowendtime = new ArrayList<>();
-		events.entrySet().stream().forEach(entry -> {
-			IEvent[] values = entry.getValue();
-			Arrays.asList(values).stream().filter(e -> e.getKind() == EventKind.BEGIN).forEach(evt -> {
-				Tx tx = (Tx) ((TxEvent) evt).getTransaction();
+		ArrayList<Long> rowEndTime = new ArrayList<>();
+		HashMap<Long, Integer> rowByTxId = new HashMap<>();
+		for(EventEntry entry: events) {
+			for(IEvent evt:entry.events) {
+				TxEvent txEvt = (TxEvent) evt;
+				ITx tx = txEvt.getTransaction();
 				int rowIdx = 0;
-				for (; rowIdx < rowendtime.size() && rowendtime.get(rowIdx) > tx.getBeginTime(); rowIdx++)
-					;
-				if (rowendtime.size() <= rowIdx)
-					rowendtime.add(tx.getEndTime());
-				else
-					rowendtime.set(rowIdx, tx.getEndTime());
-				tx.setConcurrencyIndex(rowIdx);
-			});
-		});
-		concurrencyCalculated = true;
+				switch(evt.getKind()) {
+				case END:
+					Long txId = txEvt.getTransaction().getId();
+					txEvt.setConcurrencyIndex(rowByTxId.get(txId));
+					rowByTxId.remove(txId);
+					break;
+				case SINGLE:
+					for (; rowIdx < rowEndTime.size() && rowEndTime.get(rowIdx)>tx.getBeginTime(); rowIdx++);
+					if (rowEndTime.size() <= rowIdx)
+						rowEndTime.add(tx.getEndTime());
+					else
+						rowEndTime.set(rowIdx, tx.getEndTime());
+					((TxEvent) evt).setConcurrencyIndex(rowIdx);
+					break;
+				case BEGIN:
+					for (; rowIdx < rowEndTime.size() && rowEndTime.get(rowIdx)>tx.getBeginTime(); rowIdx++);
+					if (rowEndTime.size() <= rowIdx)
+						rowEndTime.add(tx.getEndTime());
+					else
+						rowEndTime.set(rowIdx, tx.getEndTime());
+					((TxEvent) evt).setConcurrencyIndex(rowIdx);
+					rowByTxId.put(tx.getId(), rowIdx);
+					break;
+				}
+			}
+		}
+		rowCount=rowEndTime.size()>0?rowEndTime.size():1;
+		getChildNodes().parallelStream().forEach(c -> ((TxGenerator)c).calculateConcurrency());
 	}
 
 }

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

@@ -28,14 +28,15 @@ import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.zip.GZIPInputStream;
 
 import org.eclipse.collections.impl.map.mutable.UnifiedMap;
 import org.mapdb.DB;
-import org.mapdb.DB.TreeMapSink;
 import org.mapdb.DBMaker;
+import org.mapdb.HTreeMap;
 import org.mapdb.Serializer;
 
 import com.google.common.collect.HashMultimap;
@@ -55,6 +56,13 @@ import com.minres.scviewer.database.tx.ITx;
  */
 public class TextDbLoader implements IWaveformDbLoader {
 
+	/** the file size limit of a zipped txlog where the loader starts to use a file mapped database */
+	private static final long MEMMAP_LIMIT=256l*1024l*1024l;
+	
+	private static final long MAPDB_INITIAL_ALLOC = 512l*1024l*1024l;
+	
+	private static final long MAPDB_INCREMENTAL_ALLOC = 128l*1024l*1024l;
+	
 	/** The max time. */
 	private Long maxTime = 0L;
 
@@ -76,8 +84,6 @@ public class TextDbLoader implements IWaveformDbLoader {
 	/** The transactions. */
 	Map<Long, ScvTx> transactions = null;
 
-	Map<Long, Long> id2index = new HashMap<>();
-	
 	/** The attribute types. */
 	final Map<String, TxAttributeType> attributeTypes = UnifiedMap.newMap();
 
@@ -99,18 +105,59 @@ public class TextDbLoader implements IWaveformDbLoader {
 	/** The Constant x. */
 	static final byte[] x = "scv_tr_stream".getBytes();
 
+	/**
+	 * Adds the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void addPropertyChangeListener(PropertyChangeListener l) {
+		pcs.addPropertyChangeListener(l);
+	}
+
+	/**
+	 * Removes the property change listener.
+	 *
+	 * @param l the l
+	 */
+	@Override
+	public void removePropertyChangeListener(PropertyChangeListener l) {
+		pcs.removePropertyChangeListener(l);
+	}
+
 	/**
 	 * Gets the max time.
 	 *
 	 * @return the max time
 	 */
 	@Override
-	public Long getMaxTime() {
+	public long getMaxTime() {
 		return maxTime;
 	}
 
+	/**
+	 * Gets the transaction.
+	 *
+	 * @param txId the tx id
+	 * @return the transaction
+	 */
+	public ITx getTransaction(long txId) {
+		if (txCache.containsKey(txId))
+			return txCache.get(txId);
+		if(transactions.containsKey(txId)) {
+			Tx tx = new Tx(this, transactions.get(txId));
+			txCache.put(txId, tx);
+			return tx;
+		} else {
+			throw new IllegalArgumentException();
+		}
+	}
+
 	public ScvTx getScvTx(long id) {
-		return transactions.get(id2index.get(id));
+		if(transactions.containsKey(id))
+			return transactions.get(id);
+		else
+			throw new IllegalArgumentException();
 	}
 
 	/**
@@ -120,7 +167,18 @@ public class TextDbLoader implements IWaveformDbLoader {
 	 */
 	@Override
 	public Collection<IWaveform> getAllWaves() {
-		return new ArrayList<>(txStreams.values());
+		ArrayList<IWaveform> ret =  new ArrayList<>(txStreams.values());
+		ret.addAll(txGenerators.values());
+		return ret;
+	}
+
+	/**
+	 * Gets the all relation types.
+	 *
+	 * @return the all relation types
+	 */
+	public Collection<RelationType> getAllRelationTypes() {
+		return relationTypes.values();
 	}
 
 	/**
@@ -149,6 +207,22 @@ public class TextDbLoader implements IWaveformDbLoader {
 		return false;
 	}
 
+	/**
+	 * 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;
+		}
+	}
+
 	/**
 	 * Load.
 	 *
@@ -162,10 +236,9 @@ public class TextDbLoader implements IWaveformDbLoader {
 	public void load(IWaveformDb db, File file) throws InputFormatException {
 		dispose();
 		boolean gzipped = isGzipped(file);
-		if (file.length() < 75000000 * (gzipped ? 1 : 10)
+		if (file.length() < MEMMAP_LIMIT * (gzipped ? 1 : 10)
 				|| "memory".equals(System.getProperty("ScvBackingDB", "file")))
-			mapDb = DBMaker.memoryDirectDB().allocateStartSize(512l * 1024l * 1024l)
-					.allocateIncrement(128l * 1024l * 1024l).cleanerHackEnable().make();
+			mapDb = DBMaker.memoryDirectDB().make();
 		else {
 			File mapDbFile;
 			try {
@@ -175,32 +248,21 @@ public class TextDbLoader implements IWaveformDbLoader {
 				throw new InputFormatException(e.toString());
 			}
 			mapDb = DBMaker.fileDB(mapDbFile).fileMmapEnable() // Always enable mmap
-					.fileMmapEnableIfSupported().fileMmapPreclearDisable().allocateStartSize(512l * 1024l * 1024l)
-					.allocateIncrement(128l * 1024l * 1024l).cleanerHackEnable().make();
+					.fileMmapPreclearDisable().allocateStartSize(MAPDB_INITIAL_ALLOC)
+					.allocateIncrement(MAPDB_INCREMENTAL_ALLOC).cleanerHackEnable().make();
 			mapDbFile.deleteOnExit();
 		}
 		TextDbParser parser = new TextDbParser(this);
 		try {
-			parser.txSink = mapDb.treeMap("transactions", Serializer.LONG, Serializer.JAVA).createFromSink();
+			
+			parser.txSink = mapDb.hashMap("transactions", Serializer.LONG, Serializer.JAVA).create();
 			parser.parseInput(gzipped ? new GZIPInputStream(new FileInputStream(file)) : new FileInputStream(file));
-			transactions = parser.txSink.create();
+			transactions = parser.txSink;
 		} catch (IllegalArgumentException | ArrayIndexOutOfBoundsException e) {
 		} catch (Exception e) {
 			throw new InputFormatException(e.toString());
 		}
-		for (TxStream stream : txStreams.values()) {
-			Thread t = new Thread() {
-				@Override
-				public void run() {
-					try {
-						stream.calculateConcurrency();
-					} catch (Exception e) {
-						/* don't let exceptions bubble up */ }
-				}
-			};
-			threads.add(t);
-			t.start();
-		}
+		txStreams.values().parallelStream().forEach(TxStream::calculateConcurrency);
 	}
 
 	/**
@@ -222,31 +284,6 @@ public class TextDbLoader implements IWaveformDbLoader {
 		}
 	}
 
-	/**
-	 * 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;
-		}
-	}
-
-	/**
-	 * Gets the all relation types.
-	 *
-	 * @return the all relation types
-	 */
-	public Collection<RelationType> getAllRelationTypes() {
-		return relationTypes.values();
-	}
-
 	/**
 	 * The Class TextDbParser.
 	 */
@@ -275,7 +312,7 @@ public class TextDbLoader implements IWaveformDbLoader {
 		HashMap<Long, ScvTx> transactionById = new HashMap<>();
 
 		/** The tx sink. */
-		TreeMapSink<Long, ScvTx> txSink;
+		HTreeMap<Long, ScvTx> txSink;
 
 		/** The reader. */
 		BufferedReader reader = null;
@@ -286,7 +323,6 @@ public class TextDbLoader implements IWaveformDbLoader {
 		/** The attr value lut. */
 		Map<String, Integer> attrValueLut = new HashMap<>();
 
-		long indexCount = 0;
 		/**
 		 * Instantiates a new text db parser.
 		 *
@@ -309,10 +345,15 @@ 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;
+				txSink.put(e.getKey(), scvTx);
+			}
 		}
 
 		/**
@@ -344,25 +385,22 @@ 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());
+				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))
-						: "";
+				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);
 				ScvTx scvTx = new ScvTx(id, gen.stream.getId(), genId,
 						Long.parseLong(tokens[3]) * stringToScale(tokens[4]));
 				loader.maxTime = loader.maxTime > scvTx.beginTime ? loader.maxTime : scvTx.beginTime;
-				TxStream stream = loader.txStreams.get(gen.stream.getId());
-				stream.setConcurrency(stream.getConcurrency() + 1);
 				if (nextLine != null && nextLine.charAt(0) == 'a') {
 					int idx = 0;
 					while (nextLine != null && nextLine.charAt(0) == 'a') {
@@ -375,7 +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;
@@ -384,18 +422,14 @@ public class TextDbLoader implements IWaveformDbLoader {
 				TxGenerator gen = loader.txGenerators.get(scvTx.generatorId);
 				TxStream stream = loader.txStreams.get(gen.stream.getId());
 				if (scvTx.beginTime == scvTx.endTime) {
-					TxEvent evt = new TxEvent(loader, EventKind.SINGLE, id, scvTx.beginTime);
-					stream.addEvent(evt);
-					gen.addEvent(evt);
+					stream.addEvent(new TxEvent(loader, EventKind.SINGLE, id, scvTx.beginTime));
+					gen.addEvent(new TxEvent(loader, EventKind.SINGLE, id, scvTx.beginTime));
 				} else {
-					TxEvent begEvt = new TxEvent(loader, EventKind.BEGIN, id, scvTx.beginTime);
-					stream.addEvent(begEvt);
-					gen.addEvent(begEvt);
-					TxEvent endEvt = new TxEvent(loader, EventKind.END, id, scvTx.endTime);
-					stream.addEvent(endEvt);
-					gen.addEvent(endEvt);
+					stream.addEvent(new TxEvent(loader, EventKind.BEGIN, id, scvTx.beginTime));
+					gen.addEvent(new TxEvent(loader, EventKind.BEGIN, id, scvTx.beginTime));
+					stream.addEvent(new TxEvent(loader, EventKind.END, id, scvTx.endTime));
+					gen.addEvent(new TxEvent(loader, EventKind.END, id, scvTx.endTime));
 				}
-				stream.setConcurrency(stream.getConcurrency() - 1);
 				if (nextLine != null && nextLine.charAt(0) == 'a') {
 					int idx = 0;
 					while (nextLine != null && nextLine.charAt(0) == 'a') {
@@ -407,10 +441,9 @@ public class TextDbLoader implements IWaveformDbLoader {
 						nextLine = reader.readLine();
 					}
 				}
-				txSink.put(indexCount, scvTx);
-				loader.id2index.put(scvTx.getId(), indexCount++);
+				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);
@@ -450,7 +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;
 		}
@@ -515,38 +548,4 @@ public class TextDbLoader implements IWaveformDbLoader {
 
 	}
 
-	/**
-	 * Gets the transaction.
-	 *
-	 * @param txId the tx id
-	 * @return the transaction
-	 */
-	public ITx getTransaction(long txId) {
-		if (txCache.containsKey(txId))
-			return txCache.get(txId);
-		Tx tx = new Tx(this, txId);
-		txCache.put(txId, tx);
-		return tx;
-	}
-
-	/**
-	 * Adds the property change listener.
-	 *
-	 * @param l the l
-	 */
-	@Override
-	public void addPropertyChangeListener(PropertyChangeListener l) {
-		pcs.addPropertyChangeListener(l);
-	}
-
-	/**
-	 * Removes the property change listener.
-	 *
-	 * @param l the l
-	 */
-	@Override
-	public void removePropertyChangeListener(PropertyChangeListener l) {
-		pcs.removePropertyChangeListener(l);
-	}
-
 }

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

@@ -19,7 +19,6 @@ import java.util.stream.Collectors;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxAttribute;
-import com.minres.scviewer.database.tx.ITxGenerator;
 import com.minres.scviewer.database.tx.ITxRelation;
 
 /**
@@ -29,9 +28,15 @@ class Tx implements ITx {
 
 	/** The loader. */
 	private final TextDbLoader loader;
+	
+	private ScvTx scvTx =null;
 
 	/** The id. */
-	private long id;
+	private final long id;
+
+	private final long generatorId;
+
+	private final long streamId;
 
 	/** The begin time. */
 	long beginTime = -1;
@@ -39,9 +44,6 @@ class Tx implements ITx {
 	/** The end time. */
 	long endTime = -1;
 
-	/** The concurrency index. */
-	private int concurrencyIndex;
-
 	/**
 	 * Instantiates a new tx.
 	 *
@@ -51,6 +53,10 @@ class Tx implements ITx {
 	public Tx(TextDbLoader loader, ScvTx scvTx) {
 		this.loader = loader;
 		id = scvTx.id;
+		generatorId=scvTx.generatorId;
+		streamId=scvTx.streamId;
+		beginTime=scvTx.beginTime;
+		endTime=scvTx.endTime;
 	}
 
 	/**
@@ -59,9 +65,11 @@ class Tx implements ITx {
 	 * @param loader the loader
 	 * @param txId   the tx id
 	 */
-	public Tx(TextDbLoader loader, long txId) {
+	public Tx(TextDbLoader loader, long id, long generatorId,  long streamId) {
 		this.loader = loader;
-		id = txId;
+		this.id = id;
+		this.generatorId=generatorId;
+		this.streamId = streamId;
 	}
 
 	/**
@@ -94,11 +102,11 @@ class Tx implements ITx {
 	 */
 	@Override
 	public int compareTo(ITx o) {
-		int res = getBeginTime().compareTo(o.getBeginTime());
+		int res = Long.compare(getBeginTime(), o.getBeginTime());
 		if (res != 0)
 			return res;
 		else
-			return getId().compareTo(o.getId());
+			return Long.compare(getId(), o.getId());
 	}
 
 	/**
@@ -113,7 +121,7 @@ class Tx implements ITx {
 			return true;
 		if (obj == null || getClass() != obj.getClass())
 			return false;
-		return this.loader.getScvTx(id).equals(((Tx) obj).loader.getScvTx(id));
+		return this.getScvTx().equals(((Tx) obj).getScvTx());
 	}
 
 	/**
@@ -123,7 +131,7 @@ class Tx implements ITx {
 	 */
 	@Override
 	public int hashCode() {
-		return loader.getScvTx(id).hashCode();
+		return getScvTx().hashCode();
 	}
 
 	/**
@@ -142,8 +150,8 @@ class Tx implements ITx {
 	 * @return the id
 	 */
 	@Override
-	public Long getId() {
-		return loader.getScvTx(id).id;
+	public long getId() {
+		return getScvTx().id;
 	}
 
 	/**
@@ -153,7 +161,7 @@ class Tx implements ITx {
 	 */
 	@Override
 	public IWaveform getStream() {
-		return loader.txStreams.get(loader.getScvTx(id).streamId);
+		return loader.txStreams.get(streamId);
 	}
 
 	/**
@@ -162,8 +170,8 @@ class Tx implements ITx {
 	 * @return the generator
 	 */
 	@Override
-	public ITxGenerator getGenerator() {
-		return loader.txGenerators.get(loader.getScvTx(id).generatorId);
+	public IWaveform getGenerator() {
+		return loader.txGenerators.get(generatorId);
 	}
 
 	/**
@@ -172,9 +180,12 @@ class Tx implements ITx {
 	 * @return the begin time
 	 */
 	@Override
-	public Long getBeginTime() {
-		if (beginTime < 0)
-			beginTime = loader.getScvTx(id).beginTime;
+	public long getBeginTime() {
+		if (beginTime < 0) {
+			ScvTx tx = scvTx==null?loader.getScvTx(id):getScvTx();
+			beginTime = tx.beginTime;
+			endTime = tx.endTime;
+		}
 		return beginTime;
 	}
 
@@ -184,9 +195,12 @@ class Tx implements ITx {
 	 * @return the end time
 	 */
 	@Override
-	public Long getEndTime() {
-		if (endTime < 0)
-			endTime = loader.getScvTx(id).endTime;
+	public long getEndTime() {
+		if (endTime < 0) {
+			ScvTx tx = scvTx==null?loader.getScvTx(id):getScvTx();
+			beginTime = tx.beginTime;
+			endTime = tx.endTime;
+		}
 		return endTime;
 	}
 
@@ -196,26 +210,7 @@ class Tx implements ITx {
 	 * @param time the new end time
 	 */
 	void setEndTime(Long time) {
-		loader.getScvTx(id).endTime = time;
-	}
-
-	/**
-	 * Gets the concurrency index.
-	 *
-	 * @return the concurrency index
-	 */
-	@Override
-	public int getConcurrencyIndex() {
-		return concurrencyIndex;
-	}
-
-	/**
-	 * Sets the concurrency index.
-	 *
-	 * @param idx the new concurrency index
-	 */
-	void setConcurrencyIndex(int idx) {
-		concurrencyIndex = idx;
+		getScvTx().endTime = time;
 	}
 
 	/**
@@ -225,7 +220,12 @@ class Tx implements ITx {
 	 */
 	@Override
 	public List<ITxAttribute> getAttributes() {
-		return loader.getScvTx(id).attributes;
+		return getScvTx().attributes;
 	}
 
+	private ScvTx getScvTx() {
+		if(scvTx==null)
+			scvTx=loader.getScvTx(id);
+		return scvTx;
+	}
 }

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

@@ -32,6 +32,7 @@ class TxEvent implements ITxEvent {
 	/** The time. */
 	final long time;
 
+	private int concurrencyIdx=-1;
 	/**
 	 * Instantiates a new tx event.
 	 *
@@ -94,7 +95,7 @@ class TxEvent implements ITxEvent {
 	 * @return the time
 	 */
 	@Override
-	public Long getTime() {
+	public long getTime() {
 		return time;
 	}
 
@@ -107,4 +108,13 @@ class TxEvent implements ITxEvent {
 	public ITx getTransaction() {
 		return loader.getTransaction(transaction);
 	}
+
+	@Override
+	public int getRowIndex() {
+		return concurrencyIdx;
+	}
+
+	public void setConcurrencyIndex(int idx) {
+		concurrencyIdx=idx;
+	}
 }

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

@@ -15,12 +15,11 @@ import java.util.ArrayList;
 import java.util.List;
 
 import com.minres.scviewer.database.IWaveform;
-import com.minres.scviewer.database.tx.ITxGenerator;
 
 /**
  * The Class TxGenerator.
  */
-class TxGenerator extends AbstractTxStream implements ITxGenerator {
+class TxGenerator extends AbstractTxStream {
 
 	/** The stream. */
 	TxStream stream;
@@ -45,16 +44,6 @@ class TxGenerator extends AbstractTxStream implements ITxGenerator {
 		stream.addChild(this);
 	}
 
-	/**
-	 * Gets the stream.
-	 *
-	 * @return the stream
-	 */
-	@Override
-	public IWaveform getStream() {
-		return stream;
-	}
-
 	/**
 	 * Checks if is same.
 	 *
@@ -63,7 +52,7 @@ class TxGenerator extends AbstractTxStream implements ITxGenerator {
 	 */
 	@Override
 	public boolean isSame(IWaveform other) {
-		return (other instanceof TxGenerator && this.getId().equals(other.getId()));
+		return (other instanceof TxGenerator && this.getId()==other.getId());
 	}
 
 	/**
@@ -93,14 +82,15 @@ class TxGenerator extends AbstractTxStream implements ITxGenerator {
 	public String getKind() {
 		return stream.getKind();
 	}
-
+	
 	/**
-	 * Gets the width.
+	 * Gets the full hierarchical name.
 	 *
-	 * @return the width
+	 * @return the full name
 	 */
 	@Override
-	public int getWidth() {
-		return stream.getWidth();
+	public String getFullName() {
+		return  ((AbstractTxStream)parent).getFullName()+"."+name;
 	}
+
 }

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

@@ -42,7 +42,7 @@ class TxStream extends AbstractTxStream {
 	 */
 	@Override
 	public boolean isSame(IWaveform other) {
-		return (other instanceof TxStream && this.getId().equals(other.getId()));
+		return (other instanceof TxStream && this.getId() == other.getId());
 	}
 
 	/**
@@ -55,40 +55,4 @@ class TxStream extends AbstractTxStream {
 		return kind;
 	}
 
-	/** The max concurrency. */
-	private int maxConcurrency = 0;
-
-	/** The concurrency. */
-	private int concurrency = 0;
-
-	/**
-	 * Sets the concurrency.
-	 *
-	 * @param concurrency the new concurrency
-	 */
-	void setConcurrency(int concurrency) {
-		this.concurrency = concurrency;
-		if (concurrency > maxConcurrency)
-			maxConcurrency = concurrency;
-	}
-
-	/**
-	 * Gets the concurrency.
-	 *
-	 * @return the concurrency
-	 */
-	int getConcurrency() {
-		return this.concurrency;
-	}
-
-	/**
-	 * Gets the width.
-	 *
-	 * @return the width
-	 */
-	@Override
-	public int getWidth() {
-		return maxConcurrency;
-	}
-
 }

plugins/com.minres.scviewer.database.ui.swt/.classpath

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<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 kind="output" path="target/classes"/>

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

@@ -9,8 +9,8 @@ org.eclipse.jdt.core.compiler.annotation.nullable=org.eclipse.jdt.annotation.Nul
 org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.annotationSuperInterface=warning
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.autoboxing=ignore
@@ -21,6 +21,7 @@ org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=disabled
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=warning
 org.eclipse.jdt.core.compiler.problem.emptyStatement=ignore
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.explicitlyClosedAutoCloseable=ignore
 org.eclipse.jdt.core.compiler.problem.fallthroughCase=ignore
@@ -66,6 +67,7 @@ org.eclipse.jdt.core.compiler.problem.redundantSpecificationOfTypeArguments=igno
 org.eclipse.jdt.core.compiler.problem.redundantSuperinterface=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBePotentiallyStatic=ignore
 org.eclipse.jdt.core.compiler.problem.reportMethodCanBeStatic=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.problem.specialParameterHidingField=disabled
 org.eclipse.jdt.core.compiler.problem.staticAccessReceiver=warning
 org.eclipse.jdt.core.compiler.problem.suppressOptionalErrors=disabled
@@ -98,5 +100,5 @@ org.eclipse.jdt.core.compiler.problem.unusedPrivateMember=warning
 org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
-org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

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

@@ -2,9 +2,9 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: SWT database widget
 Bundle-SymbolicName: com.minres.scviewer.database.ui.swt
-Bundle-Version: 3.0.0.qualifier
+Bundle-Version: 4.0.0.qualifier
 Bundle-Vendor: MINRES Technologies GmbH
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Require-Bundle: org.eclipse.swt;bundle-version="3.103.1",
  com.minres.scviewer.database;bundle-version="1.0.0",
  com.google.guava;bundle-version="15.0.0",

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

@@ -5,8 +5,8 @@
   <parent>
   	<groupId>com.minres.scviewer</groupId>
   	<artifactId>com.minres.scviewer.parent</artifactId>
-  	<version>2.11.0</version>
+  	<version>2.15.1</version>
 	<relativePath>../..</relativePath>
   </parent>
-  <version>3.0.0-SNAPSHOT</version>
+  <version>4.0.0-SNAPSHOT</version>
 </project>

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

@@ -27,10 +27,14 @@ 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"); 
 
 	public void addSelectionChangedListener(ISelectionChangedListener listener);
@@ -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 int[] UNIT_MULTIPLIER={1, 3, 10, 30, 100, 300};
+	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 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

@@ -10,9 +10,11 @@
  *******************************************************************************/
 package com.minres.scviewer.database.ui.swt.internal;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Optional;
 
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Color;
@@ -21,8 +23,11 @@ import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.widgets.Display;
 
+import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.RelationType;
 import com.minres.scviewer.database.tx.ITx;
+import com.minres.scviewer.database.tx.ITxEvent;
 import com.minres.scviewer.database.tx.ITxRelation;
 import com.minres.scviewer.database.ui.WaveformColors;
 
@@ -32,7 +37,7 @@ public class ArrowPainter implements IPainter {
 
 	private int yCtrlOffset = 30;
 
-	private WaveformCanvas waveCanvas;
+	private final WaveformCanvas waveCanvas;
 
 	private ITx tx;
 
@@ -48,8 +53,6 @@ public class ArrowPainter implements IPainter {
 	
 	long scaleFactor;
 
-	boolean deferUpdate;
-
 	public ArrowPainter(WaveformCanvas waveCanvas, RelationType relationType) {
 		this.waveCanvas = waveCanvas;
 		highlightType=relationType;
@@ -72,42 +75,53 @@ public class ArrowPainter implements IPainter {
 		this.tx = newTx;
 		iRect = new LinkedList<>();
 		oRect = new LinkedList<>();
-		scaleFactor = waveCanvas.getScaleFactor();
+		scaleFactor = waveCanvas.getScale();
 		if (tx != null) {
 			calculateGeometries();
 		}
 	}
 
-	protected void calculateGeometries() {
-		deferUpdate = false;
+	private int getConcurrencyIndex(ITx tx) {
+		IEvent[] eventList = tx.getStream().getEventsBeforeTime(tx.getBeginTime());
+		Optional<Integer> res = Arrays.stream(eventList).map(e -> ((ITxEvent)e).getRowIndex()).findFirst();
+		return res.isPresent()? res.get():0;
+	}
+	
+	protected boolean calculateGeometries() {
 		iRect.clear();
 		oRect.clear();
 		IWaveformPainter painter = waveCanvas.wave2painterMap.get(tx.getStream());
+		if(painter == null)
+			painter = waveCanvas.wave2painterMap.get(tx.getGenerator());
 		if (painter == null) { // stream has been added but painter not yet
 								// created
-			deferUpdate = true;
-			return;
+			return true;
 		}
-		int laneHeight = painter.getHeight() / tx.getStream().getWidth();
+		int laneHeight = painter.getHeight() / tx.getStream().getRowCount();
 		txRectangle = new Rectangle((int) (tx.getBeginTime() / scaleFactor),
-				waveCanvas.rulerHeight + painter.getVerticalOffset() + laneHeight * tx.getConcurrencyIndex(),
+				waveCanvas.rulerHeight + painter.getVerticalOffset() + laneHeight * getConcurrencyIndex(tx),
 				(int) ((tx.getEndTime() - tx.getBeginTime()) / scaleFactor), laneHeight);
 		deriveGeom(tx.getIncomingRelations(), iRect, false);
 		deriveGeom(tx.getOutgoingRelations(), oRect, true);
+		return false;
 	}
 
 	protected void deriveGeom(Collection<ITxRelation> relations, List<LinkEntry> res, boolean useTarget) {
 		for (ITxRelation iTxRelation : relations) {
 			ITx otherTx = useTarget ? iTxRelation.getTarget() : iTxRelation.getSource();
-			if (waveCanvas.wave2painterMap.containsKey(otherTx.getStream())) {
-				IWaveformPainter painter = waveCanvas.wave2painterMap.get(otherTx.getStream());
-				int height = waveCanvas.styleProvider.getTrackHeight();
-				Rectangle bb = new Rectangle(
-						(int) (otherTx.getBeginTime() / scaleFactor),
-						waveCanvas.rulerHeight + painter.getVerticalOffset() + height * otherTx.getConcurrencyIndex(),
-						(int) ((otherTx.getEndTime() - otherTx.getBeginTime()) / scaleFactor),
-						height);
-				res.add(new LinkEntry(bb, iTxRelation.getRelationType()));
+			for(IWaveform iWaveform: new IWaveform[]{otherTx.getStream(), otherTx.getGenerator()}) {
+				if (waveCanvas.wave2painterMap.containsKey(iWaveform)) {
+					IWaveformPainter painter = waveCanvas.wave2painterMap.get(iWaveform);
+					if(painter!=null) {
+						int height = waveCanvas.styleProvider.getTrackHeight();
+						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()));				
+					}
+				}
 			}
 		}
 	}
@@ -119,11 +133,9 @@ public class ArrowPainter implements IPainter {
 		Color highliteColor = waveCanvas.styleProvider.getColor(WaveformColors.REL_ARROW_HIGHLITE);
 
 		if(tx==null) return;
-		if (!deferUpdate) {
-			scaleFactor = waveCanvas.getScaleFactor();
-			calculateGeometries();
-		}
-		if(deferUpdate) return;
+		scaleFactor = waveCanvas.getScale();
+		if(calculateGeometries())
+			return;
 		int correctionValue = (int)(selectionOffset);
 		Rectangle correctedTargetRectangle = new Rectangle(txRectangle.x+correctionValue, txRectangle.y, txRectangle.width, txRectangle.height);
 		for (LinkEntry entry : iRect) {

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 WaveformCanvas waveCanvas;
+    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

@@ -12,8 +12,6 @@ package com.minres.scviewer.database.ui.swt.internal;
 
 import java.util.Arrays;
 import java.util.Collection;
-import java.util.Map.Entry;
-import java.util.NavigableMap;
 
 import javax.swing.JPanel;
 
@@ -26,7 +24,9 @@ import org.eclipse.swt.graphics.Rectangle;
 
 import com.minres.scviewer.database.BitVector;
 import com.minres.scviewer.database.DoubleVal;
+import com.minres.scviewer.database.EventEntry;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IEventList;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.ui.TrackEntry;
 import com.minres.scviewer.database.ui.WaveformColors;
@@ -37,16 +37,16 @@ public class SignalPainter extends TrackPainter {
 		IEvent value;
 		boolean fromMap;
 
-		public SignalChange(Entry<Long, IEvent[]> entry) {
-			time = entry.getKey();
-			value = entry.getValue()[0];
+		public SignalChange(EventEntry entry) {
+			time = entry.timestamp;
+			value = entry.events[0];
 			fromMap = true;
 		}
 
-		public void set(Entry<Long, IEvent[]> entry, Long actTime) {
+		public void set(EventEntry entry, Long actTime) {
 			if (entry != null) {
-				time = entry.getKey();
-				value = entry.getValue()[0];
+				time = entry.timestamp;
+				value = entry.events[0];
 				fromMap = true;
 			} else {
 				time = actTime;
@@ -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;
 	}
 	
@@ -95,31 +95,26 @@ 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;
 		
-		Entry<Long, IEvent[]> first = signal.getEvents().floorEntry(beginTime);
-		Entry<Long, IEvent[]> last = signal.getEvents().floorEntry(endTime);
-		if (first == null) {
-			if (last == null)
-				return;
+		EventEntry first = signal.getEvents().floorEntry(beginTime);
+		if (first == null)
 			first = signal.getEvents().firstEntry();
-		} else if (last == null) {
-			last = signal.getEvents().lastEntry();
-		}
+		beginTime = first.timestamp;
 		proj.setForeground(this.waveCanvas.styleProvider.getColor(WaveformColors.LINE));
 		proj.setLineStyle(SWT.LINE_SOLID);
 		proj.setLineWidth(1);
-		NavigableMap<Long, IEvent[]> entries = signal.getEvents().subMap(first.getKey(), false, last.getKey(), true);
-		SignalChange left = new SignalChange(first);
-		SignalChange right = new SignalChange(entries.size() > 0 ? entries.firstEntry() : first);
+		IEventList entries = signal.getEvents().subMap(beginTime, true, endTime);
+		SignalChange left = new SignalChange(entries.firstEntry());
+		SignalChange right = new SignalChange(entries.size() > 1 ? entries.higherEntry(left.time) : entries.firstEntry());
 		maxPosX = area.x + area.width;
 		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));
 		
@@ -132,7 +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;
 			}
@@ -152,16 +147,16 @@ public class SignalPainter extends TrackPainter {
 			multiple = false;
 			if (xSigChangeEndPos == xSigChangeBeginPos) {
 				multiple = true;
-				long eTime = (xSigChangeBeginPos + 1) * this.waveCanvas.getScaleFactor();
-				Entry<Long, IEvent[]> entry = entries.floorEntry(eTime);
-				if(entry!=null && entry.getKey()> right.time)
+				long eTime = (xSigChangeBeginPos + 1) * this.waveCanvas.getScale();
+				EventEntry entry = entries.floorEntry(eTime);
+				if(entry!=null && entry.timestamp> right.time)
 					right.set(entry, endTime);
 				xSigChangeEndPos = getXPosEnd(eTime);
 			}
 		} while (left.time < endTime);
 	}
 
-	private SignalStencil getStencil(GC gc, SignalChange left, NavigableMap<Long, IEvent[]> entries) {
+	private SignalStencil getStencil(GC gc, SignalChange left, IEventList entries) {
 		IEvent val = left.value;
 		if(val instanceof BitVector) {
 			BitVector bv = (BitVector) val;
@@ -253,15 +248,15 @@ public class SignalPainter extends TrackPainter {
 		private long maxVal;
 		private long minVal;
 		double yRange = (yOffsetB-yOffsetT);
-		public MultiBitStencilAnalog(NavigableMap<Long, IEvent[]> entries, Object left, boolean continous, boolean signed) {
+		public MultiBitStencilAnalog(IEventList entries, Object left, boolean continous, boolean signed) {
 			this.continous=continous;
 			this.signed=signed;
-			Collection<IEvent[]> values = entries.values();
+			Collection<EventEntry> ievents = entries.entrySet();
 			minVal=signed?((BitVector)left).toSignedValue():((BitVector)left).toUnsignedValue();
-			if(!values.isEmpty()) {
+			if(!ievents.isEmpty()) {
 				maxVal=minVal;
-				for (IEvent[] tp : entries.values())
-					for(IEvent e: tp) {
+				for (EventEntry tp : ievents)
+					for(IEvent e: tp.events) {
 						long v = signed?((BitVector)e).toSignedValue():((BitVector)e).toUnsignedValue();
 						maxVal=Math.max(maxVal, v);
 						minVal=Math.min(minVal, v);
@@ -358,15 +353,15 @@ public class SignalPainter extends TrackPainter {
 		
 		boolean continous=true;
 		
-		public RealStencil(NavigableMap<Long, IEvent[]> entries, Object left, boolean continous) {
+		public RealStencil(IEventList entries, Object left, boolean continous) {
 			this.continous=continous;
-			Collection<IEvent[]> values = entries.values();
+			Collection<EventEntry> values = entries.entrySet();
 			minVal=(Double) left;
 			range=2.0;
 			if(!values.isEmpty()) {
 				double maxVal=minVal;
-				for (IEvent[] val : entries.values())
-					for(IEvent e:val) {
+				for (EventEntry val : values)
+					for(IEvent e:val.events) {
 						double v = ((DoubleVal)e).value;
 						if(Double.isNaN(maxVal))
 							maxVal=v;

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

@@ -10,18 +10,17 @@
  *******************************************************************************/
 package com.minres.scviewer.database.ui.swt.internal;
 
-import java.util.Collection;
-import java.util.Map.Entry;
-import java.util.NavigableMap;
-import java.util.TreeSet;
+import java.util.TreeMap;
 
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 
+import com.minres.scviewer.database.EventEntry;
 import com.minres.scviewer.database.EventKind;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IEventList;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.tx.ITx;
 import com.minres.scviewer.database.tx.ITxEvent;
@@ -37,19 +36,27 @@ public class StreamPainter extends TrackPainter{
 	private IWaveform stream;
 	private int txBase;
 	private int txHeight;
-	private TreeSet<ITx> seenTx;
+	// TODO: remove TreeMap usage
+	private TreeMap<ITx, ITxEvent> seenTx;
 
 	public StreamPainter(WaveformCanvas waveCanvas, boolean even, TrackEntry trackEntry) {
 		super(trackEntry, even);
 		this.waveCanvas = waveCanvas;
 		this.stream=trackEntry.waveform;
-		this.seenTx=new TreeSet<>();
+		this.seenTx=new TreeMap<>();
 	}
 
-	@SuppressWarnings("unchecked")
 	public void paintArea(Projection proj, Rectangle area) {
-		if(stream.getEvents().size()==0) return;
-		int trackHeight=trackEntry.height/stream.getWidth();
+		int trackHeight=trackEntry.height/stream.getRowCount();
+		if(stream.getEvents().size()==0) {
+			proj.setFillRule(SWT.FILL_EVEN_ODD);
+			proj.setLineStyle(SWT.LINE_SOLID);
+			proj.setLineWidth(1);
+			proj.setForeground(this.waveCanvas.styleProvider.getColor(WaveformColors.LINE));
+			for( int y1=area.y+trackHeight/2; y1<area.y+trackEntry.height; y1+=trackHeight)
+				proj.drawLine(area.x, y1, area.x+area.width, y1);
+			return;
+		}
 		txBase=trackHeight/5;
 		txHeight=trackHeight*3/5;
 		if(trackEntry.selected) {
@@ -60,15 +67,16 @@ 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;
 
-		Entry<Long, ?> firstTx=stream.getEvents().floorEntry(beginTime);
-		Entry<Long, ?> lastTx=stream.getEvents().ceilingEntry(endTime);
-		if(firstTx==null) firstTx = stream.getEvents().firstEntry();
-		if(lastTx==null) lastTx=stream.getEvents().lastEntry();
+		IEventList events = stream.getEvents();
+		EventEntry firstTx = events.floorEntry(beginTime);
+		EventEntry lastTx = events.ceilingEntry(endTime);
+		if(firstTx==null) firstTx = events.firstEntry();
+		if(lastTx==null) lastTx = events.lastEntry();
 		proj.setFillRule(SWT.FILL_EVEN_ODD);
 		proj.setLineStyle(SWT.LINE_SOLID);
 		proj.setLineWidth(1);
@@ -77,49 +85,53 @@ public class StreamPainter extends TrackPainter{
 		for( int y1=area.y+trackHeight/2; y1<area.y+trackEntry.height; y1+=trackHeight)
 			proj.drawLine(area.x, y1, area.x+area.width, y1);
 		if(firstTx==lastTx) {
-			for(ITxEvent txEvent:(Collection<?  extends ITxEvent>)firstTx.getValue())
-				drawTx(proj, area, txEvent.getTransaction(), false);
+			for(IEvent txEvent: firstTx.events)
+				drawTx(proj, area, ((ITxEvent)txEvent).getTransaction(), ((ITxEvent)txEvent).getRowIndex(), false);
 		}else{
 			seenTx.clear();
-			NavigableMap<Long, IEvent[]> entries = stream.getEvents().subMap(firstTx.getKey(), true, lastTx.getKey(), true);
-			boolean highlighed=false;
+			ITxEvent highlighed=null;
 			proj.setForeground(this.waveCanvas.styleProvider.getColor(WaveformColors.LINE));
 			long selectedId=waveCanvas.currentSelection!=null? waveCanvas.currentSelection.getId():-1;
-			for(Entry<Long, IEvent[]> entry: entries.entrySet())
-				for(IEvent evt:entry.getValue()){
-					ITx tx = ((ITxEvent) evt).getTransaction();
-					highlighed|=selectedId==tx.getId();
+			for(EventEntry entry: events.subMap(firstTx.timestamp, true, lastTx.timestamp))
+				for(IEvent e:entry.events){
+					ITxEvent evt = (ITxEvent) e;
+					ITx tx = evt.getTransaction();
+					if(selectedId==tx.getId())
+						highlighed=evt;
 					switch(evt.getKind()) {
 					case BEGIN:
-						seenTx.add(tx);
+						seenTx.put(tx, evt);
 						break;
 					case END:
+						drawTx(proj, area, tx, evt.getRowIndex(), false);
 						seenTx.remove(tx);
+						break;
 					case SINGLE:
-						drawTx(proj, area, tx, false);
+						drawTx(proj, area, tx, evt.getRowIndex(), false);
 						break;
 					}
 				}
-			for(ITx tx:seenTx){
-				drawTx(proj, area, tx, false);
-			}
-			if(highlighed){
+			seenTx.entrySet().stream().forEach(e -> {
+				drawTx(proj, area, e.getKey(), e.getValue().getRowIndex(), false);
+			});
+			
+			if(highlighed!=null){
 				proj.setForeground(this.waveCanvas.styleProvider.getColor(WaveformColors.LINE_HIGHLITE));
-				drawTx(proj, area, waveCanvas.currentSelection, true);
+				drawTx(proj, area, highlighed.getTransaction(), highlighed.getRowIndex(), true);
 			}
 		}
 	}
 
-	protected void drawTx(Projection proj, Rectangle area, ITx tx, boolean highlighted ) {
+	protected void drawTx(Projection proj, Rectangle area, ITx tx, int concurrencyIndex, boolean highlighted ) {
 		// compute colors
 		Color[] transColor = waveCanvas.styleProvider.computeColor( tx.getGenerator().getName());
 
 		proj.setBackground(transColor[highlighted?1:0]);
 
-		int offset = tx.getConcurrencyIndex()*this.waveCanvas.styleProvider.getTrackHeight();
+		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){
@@ -143,12 +155,12 @@ public class StreamPainter extends TrackPainter{
 
 	public ITx getClicked(Point point) {
 		int lane=point.y/waveCanvas.styleProvider.getTrackHeight();
-		Entry<Long, IEvent[]> 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);
+				ITx tx = getTxFromEntry(lane, point.x, firstTx.events);
 				if(tx!=null) return tx;
-				firstTx=stream.getEvents().lowerEntry(firstTx.getKey());
+				firstTx=stream.getEvents().lowerEntry(firstTx.timestamp);
 			}while(firstTx!=null);
 		}
 		return null;
@@ -162,27 +174,21 @@ public class StreamPainter extends TrackPainter{
 		this.stream = stream;
 	}
 
-	protected ITx getTxFromEntry(int lane, int offset, Entry<Long, IEvent[]> firstTx) {
-		long timePoint=offset*waveCanvas.getScaleFactor();
-		for(IEvent evt:firstTx.getValue()){
-			if(evt instanceof ITxEvent) {
-				ITx tx=((ITxEvent)evt).getTransaction();
-				if((evt.getKind()==EventKind.BEGIN || evt.getKind()==EventKind.SINGLE)&&
-						tx.getConcurrencyIndex()==lane && tx.getBeginTime()<=timePoint && tx.getEndTime()>=timePoint){
-					return ((ITxEvent)evt).getTransaction();
-				}
-			}
-		}
-		// now with some fuzziness
-		timePoint=(offset-5)*waveCanvas.getScaleFactor();
-		long timePointHigh=(offset+5)*waveCanvas.getScaleFactor();
-		for(IEvent evt:firstTx.getValue()){
-			if(evt instanceof ITxEvent) {
-				ITx tx=((ITxEvent)evt).getTransaction();
-				if((evt.getKind()==EventKind.BEGIN || evt.getKind()==EventKind.SINGLE) &&
-						tx.getConcurrencyIndex()==lane && tx.getBeginTime()<=timePointHigh && tx.getEndTime()>=timePoint){
-					return ((ITxEvent)evt).getTransaction();
-				}
+	protected ITx getTxFromEntry(int lane, int offset, IEvent[] firstTx) {
+		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;
+				ITx tx=evt.getTransaction();
+				if(
+						(evt.getKind()==EventKind.SINGLE && evt.getTime()==timePoint) ||
+						(evt.getKind()==EventKind.SINGLE && evt.getTime()>timePointLow && evt.getTime()<timePointHigh) ||
+						(evt.getKind()==EventKind.BEGIN && evt.getRowIndex()==lane && evt.getTime()<=timePoint && tx.getEndTime()>=timePoint)
+						){
+					return tx;
+				} 
 			}
 		}
 		return null;

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

@@ -19,7 +19,7 @@ import org.eclipse.swt.graphics.Rectangle;
 import com.minres.scviewer.database.ui.WaveformColors;
 
 public class TrackAreaPainter implements IPainter {
-	
+
 	/**
 	 * 
 	 */
@@ -35,14 +35,15 @@ public class TrackAreaPainter implements IPainter {
 	}
 
 	public void paintArea(Projection proj, Rectangle a) {
-	    Rectangle area = proj.unProject(new Rectangle(a.x, a.y+waveCanvas.rulerHeight, a.width, a.height-waveCanvas.rulerHeight));
-	    proj.setBackground(this.waveCanvas.styleProvider.getColor(WaveformColors.TRACK_BG_EVEN));
-	    proj.setFillRule(SWT.FILL_EVEN_ODD);
-	    proj.fillRectangle(area);
+		Rectangle area = proj.unProject(new Rectangle(a.x, a.y+waveCanvas.rulerHeight, a.width, a.height-waveCanvas.rulerHeight));
+		proj.setBackground(this.waveCanvas.styleProvider.getColor(WaveformColors.TRACK_BG_EVEN));
+		proj.setFillRule(SWT.FILL_EVEN_ODD);
+		proj.fillRectangle(area);
 		if(trackVerticalOffset.size()>0){
 			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;
@@ -61,9 +62,9 @@ public class TrackAreaPainter implements IPainter {
 
 	public void addTrackPainter(IWaveformPainter trackPainter){
 		trackVerticalOffset.put(trackPainter.getVerticalOffset()+waveCanvas.rulerHeight, trackPainter);
-		
+
 	}
-	
+
 	public int getHeight(){
 		if(trackVerticalOffset.size()==0) return 1;
 		return trackVerticalOffset.lastKey() + trackVerticalOffset.lastEntry().getValue().getHeight();

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

@@ -11,10 +11,12 @@
 package com.minres.scviewer.database.ui.swt.internal;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map.Entry;
+import java.util.Optional;
 
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.ControlAdapter;
@@ -32,37 +34,47 @@ import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.ScrollBar;
 
 import com.google.common.collect.Lists;
+import com.minres.scviewer.database.EventEntry;
+import com.minres.scviewer.database.IEvent;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.RelationType;
 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
-    
-    String unit="ns";
-    
-    private int level = 12;
-        
-    private long maxTime;
-    
-    protected Point origin; /* original size */
-        
-    protected int rulerHeight=40;
-    
-    protected List<IPainter> painterList;
-    
-    ITx currentSelection;
-    
-    private List<SelectionAdapter> selectionListeners;
+	private boolean doubleBuffering = true;
+
+	IWaveformStyleProvider styleProvider;
+
+	private int scaleMagnitude = 6;
+
+	private long scaleFactor = Constants.POWERS_OF_TEN[scaleMagnitude];
+
+	private long maxTime;
+
+	protected Point origin; /* original size */
+
+	protected int rulerHeight=40;
+
+	protected List<IPainter> painterList;
+
+	ITx currentSelection;
+
+	private List<SelectionAdapter> selectionListeners;
 
 	private RulerPainter rulerPainter;
 
@@ -72,443 +84,525 @@ 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);
-        this.styleProvider=styleProvider;
-    	addControlListener(new ControlAdapter() { /* resize listener. */
+
+	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();
-            }
-        });
-        addPaintListener((final PaintEvent event) -> paint(event.gc));
-        painterList = new LinkedList<>();
-        origin = new Point(0, 0);
-        selectionListeners = new LinkedList<>();
-        cursorPainters= new ArrayList<>();
-        wave2painterMap=new HashMap<>();
-        
-        initScrollBars();
+				syncSb();
+			}
+		});
+		addPaintListener((final PaintEvent event) -> paint(event.gc));
+		painterList = new LinkedList<>();
+		origin = new Point(0, 0);
+		selectionListeners = new LinkedList<>();
+		cursorPainters= new ArrayList<>();
+		wave2painterMap=new HashMap<>();
+
+		horizontal = scrollbarProvider.getScrollBar();
+		vertical = getVerticalBar();
+		initScrollBars();
 		// order is important: it is bottom to top
-        trackAreaPainter=new TrackAreaPainter(this);
-        painterList.add(trackAreaPainter);
-        arrowPainter=new ArrowPainter(this, IWaveformView.NEXT_PREV_IN_STREAM);
-        painterList.add(arrowPainter);
-        rulerPainter=new RulerPainter(this);
-        painterList.add(rulerPainter);
-		CursorPainter cp = new CursorPainter(this, scaleFactor * 10, cursorPainters.size()-1);
+		trackAreaPainter=new TrackAreaPainter(this);
+		painterList.add(trackAreaPainter);
+		arrowPainter=new ArrowPainter(this, IWaveformView.NEXT_PREV_IN_STREAM);
+		painterList.add(arrowPainter);
+		rulerPainter=new RulerPainter(this);
+		painterList.add(rulerPainter);
+		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<>();
-    }
-    
+	}
+
 	public void addCursoPainter(CursorPainter cursorPainter){
 		painterList.add(cursorPainter);
 		cursorPainters.add(cursorPainter);
 	}
-	
-    public void setHighliteRelation(RelationType relationType){
-    	if(arrowPainter!=null){
-    		boolean redraw = arrowPainter.getHighlightType()!=relationType; 
-    		arrowPainter.setHighlightType(relationType);
-    		if(redraw) redraw();
-    	}
-    }
-    
-    public Point getOrigin() {
-        return origin;
-    }
 
-    public int getWidth() {
-    	return getClientArea().width; 
-    }
-    public void setOrigin(Point origin) {
-        setOrigin(origin.x, origin.y);
-    }
+	public void setHighliteRelation(RelationType relationType){
+		if(arrowPainter!=null){
+			boolean redraw = arrowPainter.getHighlightType()!=relationType; 
+			arrowPainter.setHighlightType(relationType);
+			if(redraw) redraw();
+		}
+	}
 
-    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();
-    }
+	public Point getOrigin() {
+		return origin;
+	}
 
-    public long getMaxTime() {
-        return maxTime;
-    }
+	public int getWidth() {
+		return getClientArea().width; 
+	}
+	public void setOrigin(Point origin) {
+		setOrigin(origin.x, origin.y);
+	}
 
-    public void setMaxTime(long maxTime) {
-        this.maxTime = maxTime;
-        syncScrollBars();
-    }
+	public void setOrigin(int x, int y) {
+		checkWidget();
+		origin.x = x;
+		origin.y = y;
+		syncSb();
+	}
 
-    public int getZoomLevel() {
-        return level;
-    }
-    
-    public int getMaxZoomLevel(){
-    	return Constants.UNIT_MULTIPLIER.length*Constants.UNIT_STRING.length-1;
-    }
+	@Override
+	public long getMaxTime() {
+		return maxTime;
+	}
 
-    public void setZoomLevel(int level) {
-		long tc=cursorPainters.get(0).getTime(); // cursor time
-		setZoomLevel(level, tc);
-    }
+	public void setMaxTime(long maxTime) {
+		this.maxTime = maxTime;
+		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 void setZoomLevel(int level, long centerTime) {
-    	//FIXME: keep center if zoom-out and cursor is not in view
-    	long oldScaleFactor=scaleFactor;
-    	if(level<0) level = 0;
-    	if(level<Constants.UNIT_MULTIPLIER.length*Constants.UNIT_STRING.length){
-    		this.scaleFactor = (long) Math.pow(10, level/2d);
-    		if(level%2==1) this.scaleFactor*=3;
-    		ITx tx = arrowPainter.getTx();
-    		arrowPainter.setTx(null);
-    		/*
-    		 * xc = tc/oldScaleFactor
-    		 * xoffs = xc+origin.x
-    		 * xcn = tc/newScaleFactor
-    		 * t0n = (xcn-xoffs)*scaleFactor
-    		 */
-			long xc=centerTime/oldScaleFactor; // cursor total x-offset
-			long xoffs=xc+origin.x; // cursor offset relative to left border
-			long xcn=centerTime/scaleFactor; // new total x-offset
+	@Override
+	public long getScale() {
+		return scaleFactor;
+	}
+
+	@Override
+	public void setScale(long factor) {
+		setScalingFactor(factor, (getMaxVisibleTime()+getMinVisibleTime())/2);
+	}
+
+	@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);
+	}
+
+	//@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)*getScale()
+			 */
+			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();
-    		arrowPainter.setTx(tx);    		
-    		redraw();
-    		this.level = level;
-    	}
-    }
+			syncSb();
+			arrowPainter.setTx(tx);    		
+			redraw();
+		}
+	}
 
-    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;
-    }
+	@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 String getUnitStr(){
-        return Constants.UNIT_STRING[level/Constants.UNIT_MULTIPLIER.length];
-    }
-     
-    public int getUnitMultiplier(){
-        return Constants.UNIT_MULTIPLIER[level%Constants.UNIT_MULTIPLIER.length];
-    }
-    
-    public long getTimeForOffset(int xOffset){
-        return (xOffset-origin.x) * scaleFactor;
-    }
-    
-    public void addPainter(IPainter painter) {
-        painterList.add(painter);
-        redraw();
-    }
+	public long getTimeForOffset(int xOffset){
+		return (xOffset-origin.x) * getScale();
+	}
 
-    public void removePainter(IPainter painter) {
-        painterList.remove(painter);
-        redraw();
-    }
+	public void addPainter(IPainter painter) {
+		painterList.add(painter);
+		redraw();
+	}
 
-    public void clearAllWaveformPainter() {
-    	clearAllWaveformPainter(true);
-    }
-    
-    void clearAllWaveformPainter(boolean update) {
-        trackAreaPainter.trackVerticalOffset.clear();
-        wave2painterMap.clear();
-        if(update) syncScrollBars();
-    }
+	public void removePainter(IPainter painter) {
+		painterList.remove(painter);
+		redraw();
+	}
 
-    public void addWaveformPainter(IWaveformPainter painter) {
-    	addWaveformPainter(painter, true);
-    }
-    
-    void addWaveformPainter(IWaveformPainter painter, boolean update) {
-        trackAreaPainter.addTrackPainter(painter);
-        wave2painterMap.put(painter.getTrackEntry().waveform, painter);
-        if(update) syncScrollBars();
-    }
+	public void clearAllWaveformPainter() {
+		clearAllWaveformPainter(true);
+	}
 
-    public List<CursorPainter> getCursorPainters() {
+	void clearAllWaveformPainter(boolean update) {
+		trackAreaPainter.trackVerticalOffset.clear();
+		wave2painterMap.clear();
+		if(update) syncSb();
+	}
+
+	public void addWaveformPainter(IWaveformPainter painter) {
+		addWaveformPainter(painter, true);
+	}
+
+	void addWaveformPainter(IWaveformPainter painter, boolean update) {
+		trackAreaPainter.addTrackPainter(painter);
+		wave2painterMap.put(painter.getTrackEntry().waveform, painter);
+		if(update) syncSb();
+	}
+
+	public List<CursorPainter> getCursorPainters() {
 		return cursorPainters;
 	}
 
-    /* Initialize the scrollbar and register listeners. */
-    private void initScrollBars() {
-        ScrollBar horizontal = getHorizontalBar();
-        horizontal.setEnabled(false);
-        horizontal.setVisible(true);
-        horizontal.addSelectionListener(new SelectionAdapter() {
+	/* Initialize the scrollbar and register listeners. */
+	private void initScrollBars() {
+		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);
-            }
-        });
-        ScrollBar vertical = getVerticalBar();
-        vertical.setEnabled(false);
-        vertical.setVisible(true);
-        vertical.addSelectionListener(new SelectionAdapter() {
+			public void widgetSelected(SelectionEvent event) {
+				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;
+				}
+			}
+		});
+		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());
-            }
-        });
-    }
-
-    /**
-     * Synchronize the scrollbar with the image. If the transform is out of
-     * range, it will correct it. This function considers only following factors
-     * :<b> transform, image size, client area</b>.
-     */
-    public void syncScrollBars() {
-        if (painterList.isEmpty()) {
-            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 */
-            vertical.setMinimum(0);
-            vertical.setMaximum(height);
-            vertical.setEnabled(true);
-            if ( -origin.y > vertical.getMaximum() - clientHeighth) {
-                origin.y = -vertical.getMaximum() + clientHeighth;
-            }
-        } else { /* image is less higher than client area */
-            vertical.setMaximum(clientHeighth);
-            vertical.setEnabled(false);
-        }
-        vertical.setThumb(clientHeighth);
-        vertical.setSelection(-origin.y);
-        redraw();
-        fireSelectionEvent();
-    }
-
-    /* Paint function */
-    private void paint(GC gc) {
-        Point pt = getSize();
-        if(pt.x==0  || pt.y==0) return;
-        Rectangle clientRect = getClientArea(); /* Canvas' painting area */
-        GC thisGc = gc;
-        Image dBackingImg = null;
-        if(doubleBuffering) {
-        	dBackingImg = new Image(getDisplay(), pt.x, pt.y);
-            thisGc = new GC(dBackingImg);
-            thisGc.setBackground(gc.getBackground());
-            thisGc.setForeground(gc.getForeground());
-            thisGc.setFont(gc.getFont());
-            
-        }
-        Projection p = new Projection(thisGc);
-        p.setTranslation(origin);
-        if (!painterList.isEmpty() ) {
-            for (IPainter painter : painterList)
-                painter.paintArea(p, clientRect);
-        } else {
-            gc.fillRectangle(clientRect);
-            initScrollBars();
-        }
-        if(doubleBuffering) {
-            gc.drawImage(dBackingImg, 0, 0);
-            if(dBackingImg!=null) dBackingImg.dispose();
-            thisGc.dispose();
-        }
-    }
-
-    public List<Object> getElementsAt(Point point) {
-    	LinkedList<Object> result=new LinkedList<>();
-        for (IPainter p : Lists.reverse(painterList)) {
-            if (p instanceof TrackAreaPainter) {
-                int y = point.y - origin.y;
-                int x = point.x - origin.x;
-                Entry<Integer, IWaveformPainter> entry = trackAreaPainter.trackVerticalOffset.floorEntry(y);
-                if (entry != null) {
-                    if (entry.getValue() instanceof StreamPainter) {
-                    	ITx tx = ((StreamPainter) entry.getValue()).getClicked(new Point(x, y - entry.getKey()));
-                    	if(tx!=null)
-                    		result.add(tx);
-                    } 
-                    result.add(entry.getValue().getTrackEntry());
-                }
-            } else if (p instanceof CursorPainter) {
-                if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/scaleFactor) < 2) {
-                	result.add(p);
-                }
-            }
-        }
-        return result;
-    }
-
-    public List<Object> getEntriesAtPosition(IWaveform iWaveform, int i) {
-    	LinkedList<Object> result=new LinkedList<>();
-        int x = i - origin.x;
-        for(IWaveformPainter p: wave2painterMap.values()){
-        	if (p instanceof StreamPainter && ((StreamPainter)p).getStream()==iWaveform) {
-        		result.add(((StreamPainter) p).getClicked(new Point(x, styleProvider.getTrackHeight()/2)));
-        	}
-        }
-        return result;
-    }
-
-    public void setSelected(ITx currentSelection) {
-        this.currentSelection = currentSelection;
-        if (currentSelection != null)
-            reveal(currentSelection);
-        arrowPainter.setTx(currentSelection);
-        redraw();
-    }
-
-    public void reveal(ITx tx) {
-        int lower = (int) (tx.getBeginTime() / scaleFactor);
-        int higher = (int) (tx.getEndTime() / scaleFactor);
-        Point size = getSize();
-        size.x -= getVerticalBar().getSize().x + 2;
-        size.y -= getHorizontalBar().getSize().y;
-        if (lower < -origin.x) {
-            setOrigin(-lower, origin.y);
-        } else if (higher > (size.x - origin.x)) {
-            setOrigin(size.x - higher, origin.y);
-        }
-        for (IWaveformPainter painter : wave2painterMap.values()) {
-            if (painter instanceof StreamPainter && ((StreamPainter) painter).getStream() == tx.getStream()) {
-                int top = painter.getVerticalOffset() + styleProvider.getTrackHeight() * tx.getConcurrencyIndex();
-                int bottom = top + styleProvider.getTrackHeight();
-                if (top < -origin.y) {
-                    setOrigin(origin.x, -(top-styleProvider.getTrackHeight()));
-                } else if (bottom > (size.y - origin.y)) {
-                    setOrigin(origin.x, size.y - bottom);
-                }
-            }
-        }
-    }
-    
-	public void reveal(IWaveform waveform) {
-        for (IWaveformPainter painter : wave2painterMap.values()) {
-        	TrackEntry te = painter.getTrackEntry();
-        	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;
-                int top = te.vOffset;
-                int bottom = top + styleProvider.getTrackHeight();
-                if (top < -origin.y) {
-                    setOrigin(origin.x, -(top-styleProvider.getTrackHeight()));
-                } else if (bottom > (size.y - origin.y)) {
-                    setOrigin(origin.x, size.y - bottom);
-                }
-            }
-        }
+			public void widgetSelected(SelectionEvent event) {
+				if (!painterList.isEmpty()) {
+					origin.y=-vertical.getSelection();
+					fireSelectionEvent();
+					WaveformCanvas.this.getDisplay().asyncExec(() -> {redraw();});
+				}
+			}
+		});
 	}
 
-    public void reveal(long time) {
-        int scaledTime = (int) (time / scaleFactor);
-        Point size = getSize();
-        size.x -= getVerticalBar().getSize().x + 2;
-        size.y -= getHorizontalBar().getSize().y;
-        if (scaledTime < -origin.x) {
-            setOrigin(-scaledTime+10, origin.y);
-        } else if (scaledTime > (size.x - origin.x)) {
-            setOrigin(size.x - scaledTime-30, origin.y);
-        }
-    }
+	/**
+	 * Synchronize the scrollbar with the image. If the transform is out of
+	 * range, it will correct it. This function considers only following factors
+	 * :<b> transform, image size, client area</b>.
+	 */
+	public void syncSb() {
+		if (!painterList.isEmpty()) {
+			syncHSb();
+			syncVSb();
+			fireSelectionEvent();
+		}
+		redraw();
+	}
 
-    public int getRulerHeight() {
-        return rulerHeight;
-    }
+	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() - clientHeight) {
+				origin.y = -vertical.getMaximum() + clientHeight;
+			}
+		} else { /* image is less higher than client area */
+			vertical.setMaximum(clientHeight);
+			vertical.setEnabled(false);
+		}
+		vertical.setThumb(clientHeight);
+		vertical.setSelection(-origin.y);
+	}
 
-    public void setRulerHeight(int rulerHeight) {
-        this.rulerHeight = rulerHeight;
-    }
+	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);
+	}
 
-    public void addSelectionListener(SelectionAdapter selectionAdapter) {
-        selectionListeners.add(selectionAdapter);
-    }
+	/* Paint function */
+	private void paint(GC gc) {
+		Point pt = getSize();
+		if(pt.x==0  || pt.y==0) return;
+		Rectangle clientRect = getClientArea(); /* Canvas' painting area */
+		GC thisGc = gc;
+		Image dBackingImg = null;
+		if(doubleBuffering) {
+			dBackingImg = new Image(getDisplay(), pt.x, pt.y);
+			thisGc = new GC(dBackingImg);
+			thisGc.setBackground(gc.getBackground());
+			thisGc.setForeground(gc.getForeground());
+			thisGc.setFont(gc.getFont());
 
-    public void removeSelectionListener(SelectionAdapter selectionAdapter) {
-        selectionListeners.remove(selectionAdapter);
-    }
+		}
+		Projection p = new Projection(thisGc);
+		p.setTranslation(origin);
+		if (!painterList.isEmpty() ) {
+			for (IPainter painter : painterList)
+				painter.paintArea(p, clientRect);
+		} else {
+			gc.fillRectangle(clientRect);
+			initScrollBars();
+		}
+		if(doubleBuffering) {
+			gc.drawImage(dBackingImg, 0, 0);
+			if(dBackingImg!=null) dBackingImg.dispose();
+			thisGc.dispose();
+		}
+	}
 
-    /**
-     * 
-     */
-    protected void fireSelectionEvent() {
-        Event e = new Event();
-        e.widget = this;
-        e.detail=SWT.SELECTED;
-        e.type=SWT.Selection;
-        SelectionEvent ev = new SelectionEvent(e);
-        ev.x = origin.x;
-        ev.y = origin.y;
-        for (SelectionAdapter a : selectionListeners) {
-            a.widgetSelected(ev);
-        }
-    }
+	public List<Object> getElementsAt(Point point) {
+		LinkedList<Object> result=new LinkedList<>();
+		for (IPainter p : Lists.reverse(painterList)) {
+			if (p instanceof TrackAreaPainter) {
+				int y = point.y - origin.y;
+				int x = point.x - origin.x;
+				Entry<Integer, IWaveformPainter> entry = trackAreaPainter.trackVerticalOffset.floorEntry(y);
+				if (entry != null) {
+					if (entry.getValue() instanceof StreamPainter) {
+						ITx tx = ((StreamPainter) entry.getValue()).getClicked(new Point(x, y - entry.getKey()));
+						if(tx!=null)
+							result.add(tx);
+					} 
+					result.add(entry.getValue().getTrackEntry());
+				}
+			} else if (p instanceof CursorPainter) {
+				if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/getScale()) < 2) {
+					result.add(p);
+				}
+			}
+		}
+		return result;
+	}
 
-    long getMaxVisibleTime() {
-    	return (getClientArea().width+origin.x)*scaleFactor;
-    }
+	public List<Object> getEntriesAtPosition(IWaveform iWaveform, int i) {
+		LinkedList<Object> result=new LinkedList<>();
+		int x = i - origin.x;
+		for(IWaveformPainter p: wave2painterMap.values()){
+			if (p instanceof StreamPainter && ((StreamPainter)p).getStream()==iWaveform) {
+				result.add(((StreamPainter) p).getClicked(new Point(x, styleProvider.getTrackHeight()/2)));
+			}
+		}
+		return result;
+	}
 
-    long getMinVisibleTime() {
-    	return origin.x * scaleFactor;
-    }
+	public void setSelected(ITx currentSelection) {
+		this.currentSelection = currentSelection;
+		if (currentSelection != null)
+			reveal(currentSelection);
+		arrowPainter.setTx(currentSelection);
+		redraw();
+	}
+
+	public void reveal(ITx tx) {
+		int lower = (int) (tx.getBeginTime() / getScale());
+		int higher = (int) (tx.getEndTime() / getScale());
+		Point size = getSize();
+		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)) {
+			setOrigin(size.x - higher, origin.y);
+		}
+		for (IWaveformPainter painter : wave2painterMap.values()) {
+			if (painter instanceof StreamPainter && ((StreamPainter) painter).getStream() == tx.getStream()) {
+				EventEntry entry = tx.getStream().getEvents().floorEntry(tx.getBeginTime());
+				Optional<IEvent> res = Arrays.stream(entry.events).filter(e -> ((ITxEvent)e).getTransaction().equals(tx)).findFirst();
+				if(res.isPresent()) {
+					int top = painter.getVerticalOffset() + styleProvider.getTrackHeight() * ((ITxEvent)res.get()).getRowIndex();
+					int bottom = top + styleProvider.getTrackHeight();
+					if (top < -origin.y) {
+						setOrigin(origin.x, -(top-styleProvider.getTrackHeight()));
+					} else if (bottom > (size.y - origin.y)) {
+						setOrigin(origin.x, size.y - bottom);
+					}
+				}
+			}
+		}
+	}
+
+	public void reveal(IWaveform waveform) {
+		for (IWaveformPainter painter : wave2painterMap.values()) {
+			TrackEntry te = painter.getTrackEntry();
+			if(te.waveform == waveform) {
+				Point size = getSize();
+				size.y -=+rulerHeight;
+				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) {
+					setOrigin(origin.x, -(top-styleProvider.getTrackHeight()));
+				} else if (bottom > (size.y - origin.y)) {
+					setOrigin(origin.x, size.y - bottom);
+				}
+			}
+		}
+	}
+
+	public void reveal(long time) {
+		int scaledTime = (int) (time / getScale());
+		Point size = getSize();
+		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)) {
+			setOrigin(size.x - scaledTime-30, origin.y);
+		}
+	}
+
+	@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;
+	}
+
+	public void setRulerHeight(int rulerHeight) {
+		this.rulerHeight = rulerHeight;
+	}
+
+	public void addSelectionListener(SelectionAdapter selectionAdapter) {
+		selectionListeners.add(selectionAdapter);
+	}
+
+	public void removeSelectionListener(SelectionAdapter selectionAdapter) {
+		selectionListeners.remove(selectionAdapter);
+	}
+
+	/**
+	 * 
+	 */
+	protected void fireSelectionEvent() {
+		Event e = new Event();
+		e.widget = this;
+		e.detail=SWT.SELECTED;
+		e.type=SWT.Selection;
+		SelectionEvent ev = new SelectionEvent(e);
+		ev.x = origin.x;
+		ev.y = origin.y;
+		for (SelectionAdapter a : selectionListeners) {
+			a.widgetSelected(ev);
+		}
+	}
+
+
+	@Override
+	public long getMaxVisibleTime() {
+		return (getClientArea().width-origin.x)*getScale();
+	}
+
+	@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;
@@ -21,7 +20,6 @@ import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map.Entry;
-import java.util.NavigableMap;
 import java.util.NoSuchElementException;
 import java.util.Optional;
 import java.util.TreeMap;
@@ -77,8 +75,10 @@ import org.eclipse.wb.swt.SWTResourceManager;
 import com.google.common.collect.Lists;
 import com.minres.scviewer.database.BitVector;
 import com.minres.scviewer.database.DoubleVal;
+import com.minres.scviewer.database.EventEntry;
 import com.minres.scviewer.database.EventKind;
 import com.minres.scviewer.database.IEvent;
+import com.minres.scviewer.database.IEventList;
 import com.minres.scviewer.database.IWaveform;
 import com.minres.scviewer.database.RelationType;
 import com.minres.scviewer.database.WaveformType;
@@ -89,8 +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 {
 
@@ -98,8 +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<>();
@@ -114,6 +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;
@@ -162,8 +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);
 					}
@@ -196,88 +198,69 @@ 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) {
-				asyncUpdate(e.widget);
-				long startTime = waveformCanvas.getTimeForOffset(start.x);
-				long endTime = waveformCanvas.getTimeForOffset(end.x);
-				long targetTimeRange = endTime - startTime;
-				long currentTimeRange = waveformCanvas.getMaxVisibleTime() - waveformCanvas.getMinVisibleTime();
-				if (targetTimeRange == 0)
-					return;
-				long relation = currentTimeRange / targetTimeRange;
-				long i = 1;
-				int level = 0;
-				do {
-					if (relation < 0) {
-						if (-relation < i) {
-							break;
-						}
-						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) {
-					// first set cursor time
-					setCursorTime(snapOffsetToEvent(start));
-					// then set selection and reveal
-					setSelection(new StructuredSelection(initialSelected));
+			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);
+					if(startTime<endTime) {
+						waveformCanvas.setVisibleRange(startTime, endTime);
+					} else if(start.x!=end.x){
+						long targetTimeRange = startTime-endTime;
+						long currentTimeRange = waveformCanvas.getMaxVisibleTime() - waveformCanvas.getMinVisibleTime();
+						long factor = currentTimeRange/targetTimeRange *waveformCanvas.getScale();
+						waveformCanvas.setScalingFactor(factor, (startTime+endTime)/2);
+												
+					}
+				} 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));
+					}
 				}
-			} 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)) {
-				Entry<Long, IEvent[]> floorEntry = null;
-				Entry<Long, IEvent[]> ceilEntry = null;
+				EventEntry floorEntry = null;
+				EventEntry ceilEntry = null;
 				if (o instanceof TrackEntry) {
 					TrackEntry entry = (TrackEntry) o;
-					NavigableMap<Long, IEvent[]> map = entry.waveform.getEvents();
+					IEventList map = entry.waveform.getEvents();
 					floorEntry = map.floorEntry(time);
 					ceilEntry = map.ceilingEntry(time);
 				} else if (o instanceof ITx) {
-					NavigableMap<Long, IEvent[]> map = ((ITx) o).getStream().getEvents();
+					IEventList map = ((ITx) o).getStream().getEvents();
 					floorEntry = map.floorEntry(time);
 					ceilEntry = map.ceilingEntry(time);
 				}
-				if (floorEntry != null && time - floorEntry.getKey() > scaling)
+				if (floorEntry != null && time - floorEntry.timestamp > scaling)
 					floorEntry = null;
-				if (ceilEntry != null && ceilEntry.getKey() - time > scaling)
+				if (ceilEntry != null && ceilEntry.timestamp - time > scaling)
 					ceilEntry = null;
 				if (ceilEntry == null && floorEntry != null) {
-					time = floorEntry.getKey();
+					time = floorEntry.timestamp;
 				} else if (ceilEntry != null && floorEntry == null) {
-					time = ceilEntry.getKey();
+					time = ceilEntry.timestamp;
 				} else if (ceilEntry != null && floorEntry != null) {
-					time = time - floorEntry.getKey() < ceilEntry.getKey() - time ? floorEntry.getKey()
-							: ceilEntry.getKey();
+					time = time - floorEntry.timestamp < ceilEntry.timestamp - time ? floorEntry.timestamp
+							: ceilEntry.timestamp;
 				}
 			}
 			return time;
@@ -287,6 +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);
@@ -346,8 +348,26 @@ 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");
 
@@ -363,7 +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) {
@@ -382,7 +405,8 @@ public class WaveformView implements IWaveformView {
 		});
 		nameList.addMouseListener(nameValueMouseListener);
 		nameListScrolled.setContent(nameList);
-
+		nameFill = createFill(namePane);
+		
 		createTextPane(valuePane, "Value");
 
 		valuePane.setBackground(SWTResourceManager.getColor(SWT.COLOR_WIDGET_BACKGROUND));
@@ -395,7 +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) {
@@ -414,6 +441,7 @@ public class WaveformView implements IWaveformView {
 		});
 		valueList.addMouseListener(nameValueMouseListener);
 		valueListScrolled.setContent(valueList);
+		valueFill = createFill(valuePane);
 
 		waveformCanvas.setMaxTime(1);
 		waveformCanvas.addPaintListener(waveformMouseListener);
@@ -460,6 +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) {
@@ -514,7 +562,7 @@ public class WaveformView implements IWaveformView {
 			streamEntry.vOffset = tracksVerticalHeight;
 			if (streamEntry.waveform.getType() == WaveformType.TRANSACTION) {
 				streamEntry.currentValue = "";
-				streamEntry.height *= streamEntry.waveform.getWidth();
+				streamEntry.height *= streamEntry.waveform.getRowCount();
 				painter = new StreamPainter(waveformCanvas, even, streamEntry);
 			} else if (streamEntry.waveform.getType() == WaveformType.SIGNAL) {
 				streamEntry.currentValue = "---";
@@ -527,7 +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();
@@ -579,20 +627,21 @@ public class WaveformView implements IWaveformView {
 						entry.currentValue = Double.toString(val);
 				}
 			} else if (entry.waveform.getType() == WaveformType.TRANSACTION) {
-				ITx[] resultsList = new ITx[entry.waveform.getWidth()];
-				Entry<Long, IEvent[]> firstTx = entry.waveform.getEvents().floorEntry(time);
+				ITx[] resultsList = new ITx[entry.waveform.getRowCount()];
+				EventEntry firstTx = entry.waveform.getEvents().floorEntry(time);
 				if (firstTx != null) {
 					do {
-						for (IEvent evt : firstTx.getValue()) {
-							if (evt instanceof ITxEvent) {
-								ITx tx = ((ITxEvent) evt).getTransaction();
+						for (IEvent e : firstTx.events) {
+							if (e instanceof ITxEvent) {
+								ITxEvent evt = ((ITxEvent) e);
+								ITx tx = evt.getTransaction();
 								if ((evt.getKind() == EventKind.BEGIN || evt.getKind() == EventKind.SINGLE)
 										&& tx.getBeginTime() <= time && tx.getEndTime() >= time
-										&& resultsList[tx.getConcurrencyIndex()] == null)
-									resultsList[tx.getConcurrencyIndex()] = ((ITxEvent) evt).getTransaction();
+										&& resultsList[evt.getRowIndex()] == null)
+									resultsList[evt.getRowIndex()] = evt.getTransaction();
 							}
 						}
-						firstTx = entry.waveform.getEvents().lowerEntry(firstTx.getKey());
+						firstTx = entry.waveform.getEvents().lowerEntry(firstTx.timestamp);
 					} while (firstTx != null && !isArrayFull(resultsList));
 					boolean separator = false;
 					StringBuilder sb = new StringBuilder();
@@ -750,27 +799,30 @@ 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);
-					TrackEntry trackEntry = selList.size() == 2 && selList.get(1) instanceof TrackEntry
-							? (TrackEntry) selList.get(1)
-							: null;
-					if (trackEntry == null) {
-						trackEntry = getEntryFor(txSel);
-						if (trackEntry == null && addIfNeeded) {
-							trackEntry = new TrackEntry(txSel.getStream(), styleProvider);
-							streams.add(trackEntry);
+				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;
+						if (trackEntry == null) {
+							trackEntry = getEntryFor(txSel);
+							if (trackEntry == null && addIfNeeded) {
+								trackEntry = new TrackEntry(txSel.getStream(), styleProvider);
+								streams.add(trackEntry);
+							}
 						}
+						currentTxSelection = txSel;
+						currentWaveformSelection.clear();
+						currentWaveformSelection.add(trackEntry);
+						selectionChanged = true;
+					} else if (o instanceof TrackEntry) {
+						TrackEntry e = (TrackEntry)o;
+						if(!currentWaveformSelection.contains(e))
+							currentWaveformSelection.add(e);
+						selectionChanged = true;
 					}
-					currentTxSelection = txSel;
-					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;
-					selectionChanged = true;
+					
 				}
 			}
 		} else {
@@ -853,11 +905,11 @@ public class WaveformView implements IWaveformView {
 						}
 					}
 					if (transaction == null) {
-						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents()
+						EventEntry entry = selectedWaveform.waveform.getEvents()
 								.higherEntry(currentTxSelection.getBeginTime());
 						if (entry != null)
 							do {
-								for (IEvent evt : entry.getValue()) {
+								for (IEvent evt : entry.events) {
 									if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN
 											|| evt.getKind() == EventKind.SINGLE)) {
 										transaction = ((ITxEvent) evt).getTransaction();
@@ -865,7 +917,7 @@ public class WaveformView implements IWaveformView {
 									}
 								}
 								if (transaction == null)
-									entry = selectedWaveform.waveform.getEvents().higherEntry(entry.getKey());
+									entry = selectedWaveform.waveform.getEvents().higherEntry(entry.timestamp);
 							} while (entry != null && transaction == null);
 					}
 				} else if (direction == GotoDirection.PREV) {
@@ -882,11 +934,11 @@ public class WaveformView implements IWaveformView {
 						}
 					}
 					if (transaction == null) {
-						Entry<Long, IEvent[]> entry = selectedWaveform.waveform.getEvents()
+						EventEntry entry = selectedWaveform.waveform.getEvents()
 								.lowerEntry(currentTxSelection.getBeginTime());
 						if (entry != null)
 							do {
-								for (IEvent evt : Lists.reverse(Arrays.asList(entry.getValue()))) {
+								for (IEvent evt : Lists.reverse(Arrays.asList(entry.events))) {
 									if (evt instanceof ITxEvent && (evt.getKind() == EventKind.BEGIN
 											|| evt.getKind() == EventKind.SINGLE)) {
 										transaction = ((ITxEvent) evt).getTransaction();
@@ -894,7 +946,7 @@ public class WaveformView implements IWaveformView {
 									}
 								}
 								if (transaction == null)
-									entry = selectedWaveform.waveform.getEvents().lowerEntry(entry.getKey());
+									entry = selectedWaveform.waveform.getEvents().lowerEntry(entry.timestamp);
 							} while (entry != null && transaction == null);
 					}
 				}
@@ -928,7 +980,7 @@ public class WaveformView implements IWaveformView {
 			return candidates.get(0);
 		default:
 			ArrayList<ITxRelation> visibleCandidates = candidates.stream().filter(this::streamsVisible)
-					.collect(Collectors.toCollection(ArrayList::new));
+			.collect(Collectors.toCollection(ArrayList::new));
 			if (visibleCandidates.isEmpty()) {
 				return new RelSelectionDialog(waveformCanvas.getShell(), candidates, target).open();
 			} else if (visibleCandidates.size() == 1) {
@@ -957,14 +1009,14 @@ public class WaveformView implements IWaveformView {
 			return;
 		TrackEntry sel = currentWaveformSelection.get(0);
 		long time = getCursorTime();
-		NavigableMap<Long, ?> map = null;
+		IEventList map = null;
 		if (sel.waveform.getType() == WaveformType.TRANSACTION || sel.waveform.getType() == WaveformType.SIGNAL) {
 			map = sel.waveform.getEvents();
 		}
 		if (map != null) {
-			Entry<Long, ?> entry = direction == GotoDirection.PREV ? map.lowerEntry(time) : map.higherEntry(time);
+			EventEntry entry = direction == GotoDirection.PREV ? map.lowerEntry(time) : map.higherEntry(time);
 			if (entry != null) {
-				time = entry.getKey();
+				time = entry.timestamp;
 				setCursorTime(time);
 				waveformCanvas.reveal(time);
 				waveformCanvas.redraw();
@@ -1036,7 +1088,7 @@ public class WaveformView implements IWaveformView {
 					TrackEntry trackEntry = trackVerticalOffset.get(firstKey);
 					IWaveform w = trackEntry.waveform;
 					if (w.getType() == WaveformType.TRANSACTION)
-						subArea.height *= w.getWidth();
+						subArea.height *= w.getRowCount();
 					drawTextFormat(gc, subArea, firstKey, w.getFullName(), trackEntry.selected);
 				} else {
 					for (Entry<Integer, TrackEntry> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true)
@@ -1044,7 +1096,7 @@ public class WaveformView implements IWaveformView {
 						IWaveform w = entry.getValue().waveform;
 						subArea.height = styleProvider.getTrackHeight();
 						if (w.getType() == WaveformType.TRANSACTION)
-							subArea.height *= w.getWidth();
+							subArea.height *= w.getRowCount();
 						drawTextFormat(gc, subArea, entry.getKey(), w.getFullName(), entry.getValue().selected);
 					}
 				}
@@ -1065,7 +1117,7 @@ public class WaveformView implements IWaveformView {
 					TrackEntry trackEntry = trackVerticalOffset.get(firstKey);
 					IWaveform w = trackEntry.waveform;
 					if (w.getType() == WaveformType.TRANSACTION)
-						subArea.height *= w.getWidth();
+						subArea.height *= w.getRowCount();
 					drawValue(gc, subArea, firstKey, trackEntry.currentValue, trackEntry.selected);
 				} else {
 					for (Entry<Integer, TrackEntry> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true)
@@ -1073,7 +1125,7 @@ public class WaveformView implements IWaveformView {
 						IWaveform w = entry.getValue().waveform;
 						subArea.height = styleProvider.getTrackHeight();
 						if (w.getType() == WaveformType.TRANSACTION)
-							subArea.height *= w.getWidth();
+							subArea.height *= w.getRowCount();
 						drawValue(gc, subArea, entry.getKey(), entry.getValue().currentValue,
 								entry.getValue().selected);
 					}
@@ -1113,16 +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)
 	 * 
@@ -1133,27 +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)
 	 * 
@@ -1172,10 +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);
 		}
 	}
@@ -1196,7 +1217,7 @@ public class WaveformView implements IWaveformView {
 	 * @see com.minres.scviewer.database.swt.IWaveformPanel#getActMarkerTime()
 	 */
 	@Override
-	public int getSelectedMarkerId() {
+	public int getSelectedMarker() {
 		return selectedMarker;
 	}
 
@@ -1228,7 +1249,7 @@ public class WaveformView implements IWaveformView {
 				if (event.y < tracksVerticalHeight) {
 					event.doit = true;
 					LocalSelectionTransfer.getTransfer()
-							.setSelection(new StructuredSelection(currentWaveformSelection));
+					.setSelection(new StructuredSelection(currentWaveformSelection));
 				}
 			}
 
@@ -1448,58 +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) {
@@ -1531,5 +1526,13 @@ public class WaveformView implements IWaveformView {
 			getStreamList().add(idx, e);
 		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 );
+  }
+}