Attachment 184440 Details for Bug 331467 – Patch adding a new TmfView where latency analysis charts are displayed.

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[patch] Patch adding a new TmfView where latency analysis charts are displayed.

latency_analysis_component.patch (text/plain), 175.42 KB, created by Philippe Sawicki

on 2010-12-03 01:04:27 EST

(hide)

Description:

Filename:

MIME Type:

Creator: Philippe Sawicki

Created: 2010-12-03 01:04:27 EST

Size: 175.42 KB

patch

obsolete

>Index: org.eclipse.linuxtools.lttng.tests/.classpath
>===================================================================
>--- org.eclipse.linuxtools.lttng.tests/.classpath	(revision 27050)
>+++ org.eclipse.linuxtools.lttng.tests/.classpath	(working copy)
>@@ -3,5 +3,6 @@
> 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
> 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
> 	<classpathentry kind="src" path="src"/>
>+	<classpathentry combineaccessrules="false" kind="src" path="/org.eclipse.linuxtools.lttng.ui"/>
> 	<classpathentry kind="output" path="bin"/>
> </classpath>
>Index: org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/AnalysisTests.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/AnalysisTests.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/AnalysisTests.java	(revision 0)
>@@ -0,0 +1,281 @@
>+package org.eclipse.linuxtools.lttng.analysis.analyser.test;
>+
>+
>+import junit.framework.TestCase;
>+import org.junit.After;
>+import org.junit.Before;
>+
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.StackWrapper;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.EventCountPerLatency;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+
>+
>+/**
>+ * Define the class test
>+ * this class initialize the variables test in the setup() method, free all variables of data in tesrDown(), and 
>+ * define the preparation of each test, define also the case test, 
>+ * and finally execute all test cases in testGlobalAnalyser() method.
>+ * 
>+ * @author Abdelhaq Saoudi
>+ */
>+
>+public class AnalysisTests extends TestCase{
>+	
>+		/**
>+		 * Variables for test
>+		 */
>+	
>+		private LttngEvent eventAsked_1= null;
>+		private LttngEvent eventAsked_2= null;
>+		private LttngEvent newEvent = null;
>+		private LttngEvent newEvent1 = null;
>+		private static int matched = 0;
>+		private static int processed = 0;
>+		
>+		private String key_1 = null;
>+		private String key_2 = null;
>+		private String type1 = null;
>+		private String type2 = null;
>+		private StackWrapper stw = null;
>+		
>+		private EventCountPerLatency ecpl= null;
>+		private long minLatency = 10;
>+		private long maxLatency = 30;
>+		private int nbBar = 10;
>+		private Pair<Integer,ChartPoint> pair;
>+		private Pair<String,String> eventType;
>+	
>+	 /**
>+	 * Constructor of the class test
>+	 */
>+	 
>+		public AnalysisTests(final String name){
>+			super(name);
>+			
>+			/**
>+			 * search all event and registration in the vector traceEvents
>+			 */
>+			RequestsEvents.getInstance().findEvents();
>+		}
>+		
>+		/**
>+		 * preparation for test of Event data received
>+		 */
>+		public void preparationtoTestDataEvent(){
>+			eventAsked_1 = RequestsEvents.traceEvents.elementAt(0);
>+			eventAsked_2 = RequestsEvents.traceEvents.elementAt(1);
>+		}	
>+		
>+	 /**
>+	 * preparation for test of EventMatcher class
>+	 */
>+		public void preparationtoTestProcess(){
>+			//eventAsked_1 = RequestsEvents.traceEvents.elementAt(0);
>+			//eventAsked_2 = RequestsEvents.traceEvents.elementAt(1);
>+			newEvent = EventMatcher.getInstance().process(eventAsked_1);
>+			newEvent1 = EventMatcher.getInstance().process(eventAsked_2);
>+			processed = EventMatcher.getInstance().getNBProcessedEvents();
>+			matched = EventMatcher.getInstance().getNBMatchedEvents();
>+		}
>+		
>+		/**
>+	 * preparation to test of clearStack method in EventMatcher class.
>+	 */
>+		public void preparationtoTestClearStack(){
>+			EventMatcher.getInstance().clearStack();	
>+		}
>+		
>+	 /**
>+	 * preparation for test of stackWrraper class
>+	 */
>+		public void preparationtoTestStack(){
>+			//eventAsked_1 = RequestsEvents.traceEvents.elementAt(0);
>+			//eventAsked_2 = RequestsEvents.traceEvents.elementAt(1);
>+			key_1 = 	eventAsked_1.getMarkerName();
>+			key_2 = 	eventAsked_2.getMarkerName();
>+			stw = new StackWrapper();
>+			int size = RequestsEvents.traceEvents.size();
>+			
>+			// for all requests event, we put it in the stack.
>+		 for(int i = 0 ; i < size -1; i++)
>+		 	 stw.put(RequestsEvents.traceEvents.elementAt(i));
>+		}
>+		
>+	 /**
>+	 * preparation for test of EventCountPerLatency class
>+	 */
>+		public void preparationtoTestEventCountPerLatency(){
>+		 ecpl = new EventCountPerLatency();
>+		 ecpl.generateStandardLatencies(minLatency, maxLatency, nbBar);
>+		 pair = ecpl.updateStandardCounter(18);
>+		} 
>+		
>+	 /**
>+	 * preparation for test of Pair class
>+	 */
>+		public void preparationtoTestPairClass(){
>+			eventType = new Pair<String, String>(eventAsked_1.getMarkerName(), eventAsked_2.getMarkerName());
>+			type1 = 	eventAsked_1.getMarkerName();
>+			type2 = 	eventAsked_2.getMarkerName();
>+		} 
>+		/**
>+		 * this method let us to initializes the variables. 
>+		 * */
>+		@Before
>+		public void setUp() throws Exception {
>+			super.setUp();
>+			preparationtoTestDataEvent(); 
>+			preparationtoTestProcess();
>+			preparationtoTestStack();
>+			preparationtoTestEventCountPerLatency();
>+			preparationtoTestPairClass();
>+		}
>+	 
>+		/**
>+		 * this method let us to free the variables. 
>+		 * */
>+		@After
>+		public void tearDown() throws Exception {
>+			super.setUp();
>+			eventAsked_1 = null; 
>+			eventAsked_2 = null;
>+			newEvent = null;
>+			newEvent1= null;
>+			stw = null;
>+			ecpl = null;
>+			pair = null;
>+			eventType = null;
>+		}
>+		
>+		/**
>+		 * test the data of event
>+		 */	
>+		public void EventDataTestT0() {
>+		 System.out.println("test T0 of good data event"); 
>+		 //System.out.println("ev 1 : " + eventAsked_1);
>+		 //System.out.println("ev 2 : " + eventAsked_2);
>+		 assertEquals(0|1, eventAsked_1.getCpuId());
>+		 assertEquals(0|1, eventAsked_2.getCpuId());
>+			 assertNotSame(eventAsked_1.getTimestamp().getValue(), eventAsked_2.getTimestamp().getValue());
>+			 assertNotSame(eventAsked_1.getContent(), eventAsked_2.getContent());
>+			 assertNotSame(eventAsked_1.getMarkerName(), eventAsked_2.getMarkerName());
>+			 assertNotSame(eventAsked_1, eventAsked_2);
>+		}		
>+	
>+		
>+		public void EventDataTestT1() {
>+		 System.out.println("test T1 of errone data event");
>+		 assertNotSame("not exist marker",eventAsked_1.getMarkerName());
>+		 assertNotSame("not exist marker",eventAsked_2.getMarkerName());
>+		 assertNotSame(1345679853422L ,eventAsked_1.getTimestamp().getValue());
>+		 assertNotSame(1345679853422L ,eventAsked_2.getTimestamp().getValue());
>+		}	
>+		
>+		/**
>+		 * test process() method of EventMacher class 
>+		 */
>+		
>+		public void EventMatcherProcessTestT10() {
>+		 System.out.println("test T10 of good process method");
>+		 assertEquals(2,processed);
>+			 assertNotNull(matched);	
>+			
>+		}		
>+		public void EventMatcherProcessTestT11() {
>+			System.out.println("test T11 of errone process method");
>+			assertNotSame(3,processed);
>+			assertNotSame(3,matched);
>+		}		
>+		
>+			
>+		public void EventMatcherClearStackTestT101() {
>+		 System.out.println("test T101 of good clear Stack methode");
>+		 preparationtoTestClearStack();
>+		 assertSame(0,EventMatcher.getInstance().getNBProcessedEvents());
>+		 assertSame(0,EventMatcher.getInstance().getNBMatchedEvents());
>+		}	
>+		 
>+		
>+		/**
>+		 * test the key of event in the stack WRraper. 
>+		 */
>+		public void StackTestT13() {
>+		 System.out.println("test T13 of errone content stack");
>+		 assertTrue(stw.containsKey(key_2));
>+		 stw.removeEvent(key_2, eventAsked_2);
>+		 assertFalse(stw.containsKey(key_2)); 
>+		}
>+		
>+		
>+		/**
>+		 * test of EventCounterPerLatency. 
>+		 */
>+		
>+		public void GetStandardLatencyTestT14() {
>+		 System.out.println("test T14 of good event counter");
>+		 for(int i = 0; i < ecpl.getStandardLatencies().length; i++)
>+		 	System.out.println(ecpl.getStandardLatencies()[i]);
>+		 //System.out.println(pair.getFirst());
>+		 assertSame(4, pair.getFirst());
>+		 assertEquals(nbBar + 1, ecpl.getStandardLatencies().length);
>+		 
>+		}
>+		
>+		public void GetStandardLatencyTestT15() {
>+		 System.out.println("test T15 of errone event counter");
>+		 assertNotSame(0&1&2&3&5&6&7&8&9&10, pair.getFirst());
>+		 assertNotSame(20, ecpl.getStandardLatencies().length);
>+		 
>+		}
>+		
>+		
>+		/**
>+		 * test of Pair Class. 
>+		 */
>+		public void PairTestT16() {
>+		 System.out.println(" test T16 for good job of Pair");
>+		 assertEquals(type1, eventType.getFirst());
>+		 assertEquals(type2, eventType.getSecond());
>+		 assertNotSame(eventType.getFirst(), eventType.getSecond());
>+		 assertNotNull(eventType.hashCode());
>+		 assertFalse(eventType.equals(pair));
>+		 assertTrue(eventType.equals(eventType)); 
>+		}
>+		
>+		
>+		public void PairTestT17() {
>+		 System.out.println("test T17 for errone job of Pair ");
>+		 assertNotSame(type1, eventType.getSecond());
>+		 assertNotSame(type2, eventType.getFirst());
>+		 assertNotSame("event", eventType.getFirst());
>+		 assertNotSame("something", eventType.getSecond());
>+		 assertNotSame(0,eventType.hashCode());
>+		 assertNotSame("OBJECT",eventType.equals(pair)); 
>+		}
>+		
>+		/**
>+		 * this method execute all test cases,
>+		 * 
>+		 * because, if we start the test individual and number of test upper than one, 
>+		 * we have the error message in the console " ** (process: number): DEBUG (recursed) "
>+		 * 
>+		 */
>+		public void testGlobalAnalyser(){
>+			EventDataTestT0();
>+			EventDataTestT1();
>+			EventMatcherProcessTestT10();
>+			EventMatcherProcessTestT11();
>+			EventMatcherClearStackTestT101();
>+			StackTestT13();
>+			GetStandardLatencyTestT14();
>+			GetStandardLatencyTestT15();
>+			PairTestT16();
>+			PairTestT17();
>+		}
>+}
>+
>+
>+
>Index: org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/RequestsEvents.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/RequestsEvents.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.tests/src/org/eclipse/linuxtools/lttng/analysis/analyser/test/RequestsEvents.java	(revision 0)
>@@ -0,0 +1,92 @@
>+package org.eclipse.linuxtools.lttng.analysis.analyser.test;
>+
>+import java.util.Vector;
>+
>+import org.eclipse.linuxtools.lttng.analysis.facade.DataHandler;
>+import org.eclipse.linuxtools.lttng.analysis.facade.TraceFacade;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+import org.eclipse.linuxtools.lttng.trace.LTTngTrace;
>+import org.eclipse.linuxtools.tmf.event.TmfTimeRange;
>+import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
>+import org.eclipse.linuxtools.tmf.trace.ITmfTrace;
>+
>+
>+/**
>+ * this class find all event from TMF by Trace Facade, 
>+ * and register it in the static Vector traceEvents.
>+ * 
>+ * @author Abdelhaq Saoudi
>+ */
>+
>+public class RequestsEvents extends DataHandler {
>+	
>+	 /**
>+	 * (class implemented as Singleton).
>+	 */
>+	
>+	 private static RequestsEvents instance_ = null;
>+	 
>+	 
>+	 private RequestsEvents() { }
>+ 
>+	 public static RequestsEvents getInstance() {
>+	 if (instance_ == null)
>+	 instance_ = new RequestsEvents();
>+	 return instance_;
>+	 }
>+
>+		
>+		private final String TRACE_PATH = "/home/l3819/Bureau/traces/trace_0";
>+		
>+		public static Vector<LttngEvent> traceEvents = new Vector<LttngEvent>();
>+		
>+		private TmfExperiment<LttngEvent> experiment = null;
>+		
>+		private TmfTimeRange timeRange = null;
>+		
>+		/**
>+		 * this method findEvent() retrieves all event fromTMF by traceFacade, the received event pass in the handler "this"
>+		 */
>+		public void findEvents(){
>+			
>+			try {
>+				ITmfTrace[] traces = new ITmfTrace[1];
>+				traces[0] = new LTTngTrace(TRACE_PATH);
>+				
>+				// Create our new experiment
>+				experiment = new TmfExperiment<LttngEvent>(LttngEvent.class, "firstExperiment", traces);
>+				//long x=experiment.getStartTime().getValue();
>+				//long y=experiment.getEndTime().getValue();
>+				//System.out.println("valeur de x: "+ x +" y: "+ y +"y-x :"+ (y-x));
>+				timeRange = experiment.getTimeRange();
>+				TraceFacade.getInstance().getAllEvents(experiment, timeRange, this);
>+			}
>+			
>+			catch (NullPointerException e) {
>+			}
>+			catch (Exception e) {
>+			 e.printStackTrace();
>+			 }
>+			
>+		} 
>+	
>+		/**
>+		 * this handler register the event in the vector.
>+		 */
>+		public void handleData(LttngEvent event) {
>+			//System.out.println("start handler");
>+			traceEvents.add(event.clone());
>+		}
>+		
>+		/**
>+		 * Forward completion notification to the handler.
>+		 */
>+		public void handleCompleted() {
>+			
>+		}
>+			
>+	
>+}
>+
>+	
>+
>Index: org.eclipse.linuxtools.lttng.ui/icons/add_button.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\add_button.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/icons/decreasebar_button.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\decreasebar_button.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/icons/delete_button.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\delete_button.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/icons/graph.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\graph.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/icons/increasebar_button.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\increasebar_button.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/icons/warning.gif
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/octet-stream
>
>Property changes on: org.eclipse.linuxtools.lttng.ui\icons\warning.gif
>___________________________________________________________________
>Added: svn:mime-type
> + application/octet-stream
>
>Index: org.eclipse.linuxtools.lttng.ui/plugin.properties
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/plugin.properties	(revision 27050)
>+++ org.eclipse.linuxtools.lttng.ui/plugin.properties	(working copy)
>@@ -14,6 +14,7 @@
> resources.view.name = Resources
> statistics.view.name = Statistics
> histogram.view.name = Histogram
>+latency.view.name = Latency View
> 
> wizard.category.name = LTTng
> project.new.wizard.name = LTTng Project
>Index: org.eclipse.linuxtools.lttng.ui/plugin.xml
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/plugin.xml	(revision 27050)
>+++ org.eclipse.linuxtools.lttng.ui/plugin.xml	(working copy)
>@@ -90,6 +90,15 @@
> name="%histogram.view.name"
> restorable="true">
> </view>
>+ <view
>+ allowMultiple="false"
>+ category="org.eclipse.linuxtools.lttng.ui.views.category"
>+ class="org.eclipse.linuxtools.lttng.ui.views.latency.LatencyView"
>+ icon="icons/graph.gif"
>+ id="org.eclipse.linuxtools.lttng.ui.views.latency"
>+ name="%latency.view.name"
>+ restorable="true">
>+ </view>
> </extension>
> <extension
> point="org.eclipse.ui.newWizards">
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/Analyser.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/Analyser.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/Analyser.java	(revision 0)
>@@ -0,0 +1,80 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser;
>+
>+import org.eclipse.linuxtools.lttng.analysis.analyser.states.AnalyserState;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.states.MinMaxLatencyState;
>+
>+/**
>+ * Analyser class, computes latencies in a trace, following the State pattern.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class Analyser {
>+	
>+	/**
>+	 * Class instance (Singleton pattern).
>+	 */
>+	private static Analyser instance_;
>+	
>+	/**
>+	 * Analyser state (State pattern).
>+	 */
>+	private AnalyserState state_;
>+	
>+	
>+	/**
>+	 * Private constructor to defeat instantiation (Singleton pattern).
>+	 */
>+	private Analyser() {
>+		
>+	}
>+	
>+	/**
>+	 * Returns an instance of the Analyser.
>+	 * @return An instance of the Analyser.
>+	 */
>+	public static Analyser getInstance() {
>+		if (instance_ == null)
>+			instance_ = new Analyser();
>+		return instance_;
>+	}
>+	
>+	/**
>+	 * Releases the instance of the Analyser.
>+	 */
>+	public static void releaseInstance() {
>+		instance_ = null;
>+	}
>+	
>+	/**
>+	 * Changes the state of the analyser (State pattern).
>+	 * @param newState The new state of the analyser.
>+	 */
>+	public void changeState(AnalyserState newState) {
>+		state_ = newState;
>+		
>+		if (state_ != null)
>+			state_.process();
>+	}
>+	
>+	/**
>+	 * Analyses the latency for all types of events.
>+	 */
>+	public void analyseLatencyForAllEvents() {
>+		// If a state is currently active, cancel it before starting the new one
>+		if (state_ != null)
>+			state_.handleCancel();
>+		changeState( new MinMaxLatencyState() );
>+	}
>+	
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/EventMatcher.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/EventMatcher.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/EventMatcher.java	(revision 0)
>@@ -0,0 +1,491 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.matcher;
>+
>+import java.util.Collection;
>+import java.util.Collections;
>+import java.util.HashMap;
>+import java.util.Iterator;
>+import java.util.Map.Entry;
>+import java.util.Set;
>+import java.util.Stack;
>+import java.util.Vector;
>+
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+
>+
>+/**
>+ * Event matching class. Saves events in a list a returns the previously saved
>+ * event if the currently processed one is its response, so that the latency
>+ * can be computed by subtracting their respective timestamps.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class EventMatcher {
>+	
>+	/**
>+	 * Class instance (Singleton pattern).
>+	 */
>+	private static EventMatcher instance_ = null;
>+	
>+	/**
>+	 * Stack abstraction, used to save the events in a list.
>+	 */
>+	private StackWrapper stack_;
>+	
>+	/**
>+	 * Match table, associates a request class to a response class.
>+	 */
>+	private HashMap<String,String> match_;
>+	/**
>+	 * Inverse match table, associates a response class to a request class.
>+	 */
>+	private HashMap<String,String> inverseMatch_;
>+	
>+	/**
>+	 * The number of events processed.
>+	 */
>+	private int processedEvents_;
>+	/**
>+	 * The number of events matched.
>+	 */
>+	private int matchedEvents_;
>+	
>+	/**
>+	 * Event types identification Strings.
>+	 */
>+	public static String
>+		ADD_TO_PAGE_CACHE = "add_to_page_cache",
>+		BIO_BACKMERGE = "bio_backmerge",
>+		BIO_FRONTMERGE = "bio_frontmerge",
>+		BIO_QUEUE = "bio_queue",
>+		BUFFER_WAIT_END = "buffer_wait_end",
>+		BUFFER_WAIT_START = "buffer_wait_start",
>+		CALL = "call",
>+		CLOSE = "close",
>+		CORE_MARKER_FORMAT = "core_marker_format",
>+		CORE_MARKER_ID = "core_marker_id",
>+		DEV_RECEIVE = "dev_receive",
>+		DEV_XMIT = "dev_xmit",
>+		END_COMMIT = "end_commit",
>+		EXEC = "exec",
>+		FILE_DESCRIPTOR = "file_descriptor",
>+		GETRQ = "getrq",
>+		GETRQ_BIO = "getrq_bio",
>+		IDT_TABLE = "idt_table",
>+		INTERRUPT = "interrupt",
>+		IOCTL = "ioctl",
>+		IRQ_ENTRY = "irq_entry",
>+		IRQ_EXIT = "irq_exit",
>+		LIST_MODULE = "list_module",
>+		LLSEEK = "llseek",
>+		LSEEK = "lseek",
>+		NAPI_COMPLETE = "napi_complete",
>+		NAPI_POLL = "napi_poll",
>+		NAPI_SCHEDULE = "napi_schedule",
>+		NETWORK_IPV4_INTERFACE = "network_ipv4_interface",
>+		NETWORK_IP_INTERFACE = "network_ip_interface",
>+		OPEN = "open",
>+		PAGE_FAULT_ENTRY = "page_fault_entry",
>+		PAGE_FAULT_EXIT = "page_fault_exit",
>+		PAGE_FAULT_GET_USER_ENTRY = "page_fault_get_user_entry",
>+		PAGE_FAULT_GET_USER_EXIT = "page_fault_get_user_exit",
>+		PAGE_FREE = "page_free",
>+		PLUG = "plug",
>+		POLLFD = "pollfd",
>+		PREAD64 = "pread64",
>+		PRINTF = "printf",
>+		PRINTK = "printk",
>+		PROCESS_EXIT = "process_exit",
>+		PROCESS_FORK = "process_fork",
>+		PROCESS_FREE = "process_free",
>+		PROCESS_STATE = "process_state",
>+		PROCESS_WAIT = "process_wait",
>+		READ = "read",
>+		REMAP = "remap",
>+		REMOVE_FROM_PAGE_CACHE = "remove_from_page_cache",
>+		RQ_COMPLETE_FS = "rq_complete_fs",
>+		RQ_COMPLETE_PC = "rq_complete_pc",
>+		RQ_INSERT_FS = "rq_insert_fs",
>+		RQ_INSERT_PC = "rq_insert_pc",
>+		RQ_ISSUE_FS = "rq_issue_fs",
>+		RQ_ISSUE_PC = "rq_issue_pc",
>+		RQ_REQUEUE_PC = "rq_requeue_pc",
>+		SCHED_MIGRATE_TASK = "sched_migrate_task",
>+		SCHED_SCHEDULE = "sched_schedule",
>+		SCHED_TRY_WAKEUP = "sched_try_wakeup",
>+		SCHED_WAKEUP_NEW_TASK = "sched_wakeup_new_task",
>+		SELECT = "select",
>+		SEM_CREATE = "sem_create",
>+		SEND_SIGNAL = "send_signal",
>+		SHM_CREATE = "shm_create",
>+		SLEEPRQ_BIO = "sleeprq_bio",
>+		SOCKET_ACCEPT = "socket_accept",
>+		SOCKET_BIND = "socket_bind",
>+		SOCKET_CALL = "socket_call",
>+		SOCKET_CONNECT = "socket_connect",
>+		SOCKET_CREATE = "socket_create",
>+		SOCKET_GETPEERNAME = "socket_getpeername",
>+		SOCKET_GETSOCKNAME = "socket_getsockname",
>+		SOCKET_GETSOCKOPT = "socket_getsockopt",
>+		SOCKET_LISTEN = "socket_listen",
>+		SOCKET_SETSOCKOPT = "socket_setsockopt",
>+		SOCKET_SHUTDOWN = "socket_shutdown",
>+		SOCKET_SOCKETPAIR = "socket_socketpair",
>+		SOFTIRQ_ENTRY = "softirq_entry",
>+		SOFTIRQ_EXIT = "softirq_exit",
>+		SOFTIRQ_RAISE = "softirq_raise",
>+		SOFTIRQ_VEC = "softirq_vec",
>+		START_COMMIT = "start_commit",
>+		STATEDUMP_END = "statedump_end",
>+		SYS_CALL_TABLE = "sys_call_table",
>+	 SYSCALL_ENTRY = "syscall_entry",
>+	 SYSCALL_EXIT = "syscall_exit",
>+	 TASKLET_LOW_ENTRY = "tasklet_low_entry",
>+	 TASKLET_LOW_EXIT = "tasklet_low_exit",
>+	 TCPV4_RCV = "tcpv4_rcv",
>+	 TIMER_ITIMER_EXPIRED = "timer_itimer_expired",
>+	 TIMER_ITIMER_SET = "timer_itimer_set",
>+	 TIMER_SET = "timer_set",
>+	 TIMER_TIMEOUT = "timer_timeout",
>+	 TIMER_UPDATE_TIME = "timer_update_time",
>+	 UDPV4_RCV = "udpv4_rcv",
>+	 UNPLUG_IO = "unplug_io",
>+	 UNPLUG_TIMER = "unplug_timer",
>+	 VM_MAP = "vm_map",
>+	 VPRINTK = "vprintk",
>+	 WAIT_ON_PAGE_END = "wait_on_page_end",
>+	 WAIT_ON_PAGE_START = "wait_on_page_start",
>+	 WRITE = "write",
>+	 WRITEV = "writev";
>+	
>+	
>+	/**
>+	 * Private constructor to defeat instantiation (Singleton pattern).
>+	 */
>+	private EventMatcher() {
>+		stack_ = new StackWrapper();
>+		match_ = new HashMap<String,String>();
>+		inverseMatch_ = new HashMap<String,String>();
>+		
>+		processedEvents_ = 0;
>+		matchedEvents_ = 0;
>+		
>+		createMatchTable();
>+	}
>+	
>+	/**
>+	 * Returns an instance to the EventMatcher class (Singleton pattern).
>+	 * @return An instance to the EventMatcher class (Singleton pattern).
>+	 */
>+	public static EventMatcher getInstance() {
>+		if (instance_ == null) 
>+			instance_ = new EventMatcher();
>+		return instance_;
>+	}
>+	
>+	/**
>+	 * Releases the instance to the EventMatcher class.
>+	 */
>+	public static void releaseInstance() {
>+		instance_ = null;		
>+	}
>+	
>+	/**
>+	 * Creates the event matching table, linking a response class to a 
>+	 * request class.
>+	 */
>+	private void createMatchTable() {
>+		// Build the default matches
>+		match_.put(PAGE_FAULT_GET_USER_EXIT, PAGE_FAULT_GET_USER_ENTRY);
>+		match_.put(TASKLET_LOW_EXIT, TASKLET_LOW_ENTRY);
>+		match_.put(PAGE_FAULT_EXIT, PAGE_FAULT_ENTRY);
>+		match_.put(SYSCALL_EXIT, SYSCALL_ENTRY);
>+		match_.put(IRQ_EXIT, IRQ_ENTRY);
>+		match_.put(WRITE, READ);
>+		match_.put(CLOSE, OPEN);
>+		match_.put(BUFFER_WAIT_END, BUFFER_WAIT_START);
>+		match_.put(END_COMMIT, START_COMMIT);
>+		match_.put(WAIT_ON_PAGE_END, WAIT_ON_PAGE_START);
>+		
>+		// Build the inverse matches based on the matches
>+		Set<Entry<String,String>> pairs = match_.entrySet();
>+		Iterator<Entry<String,String>> it = pairs.iterator();
>+		while (it.hasNext()) {
>+			Entry<String,String> pair = it.next();
>+			inverseMatch_.put(pair.getValue(), pair.getKey());
>+		}
>+	}
>+	
>+	/**
>+	 * Processes an event received: if it is identified as a response, try to
>+	 * get its request to remove it from the list. If no request was saved, 
>+	 * dismiss the current response. If it is a request, save it to the list of
>+	 * requests waiting for a response.
>+	 * @param event The event to identify, and maybe process if it is a response.
>+	 * @return The request event associated with the current event (a response), 
>+	 * or null if nothing was found (no request associated with this response, or
>+	 * the event to identify was a request that was added to the list).
>+	 */
>+	public LttngEvent process(LttngEvent event) {
>+		processedEvents_++;
>+		
>+		String markerName = event.getMarkerName();
>+		
>+		if (match_.containsKey(markerName)) {
>+			String startEventType = match_.get(markerName);
>+			Stack<LttngEvent> events = stack_.getStackOf(startEventType);
>+			
>+			if (events != null) {
>+				for (int i = events.size()-1; i >= 0; i--) {
>+					LttngEvent request = events.get(i);
>+					
>+					if (request.getCpuId() == event.getCpuId() &&
>+						event.getTimestamp().getValue() > request.getTimestamp().getValue()) {
>+						stack_.removeEvent(startEventType, request);
>+						matchedEvents_++;
>+						return request;
>+					}
>+				}
>+			}
>+			return null;
>+		} else {
>+			// Add only if there can later be a match for this request
>+			if (match_.containsValue(event.getMarkerName())) {
>+				stack_.put(event.clone());
>+			}
>+			return null;
>+		}
>+	}
>+	
>+	/**
>+	 * Clears the stack content.
>+	 */
>+	public void clearStack() {
>+		stack_.clear();
>+		
>+		// Reset the processed and matched events counter
>+		processedEvents_ = 0;
>+		matchedEvents_ = 0;
>+	}
>+	
>+	/**
>+	 * Resets all.
>+	 */
>+	public void resetMatches() {
>+		match_.clear();
>+		inverseMatch_.clear();
>+		
>+		stack_.clear();
>+		
>+		// Reset the processed and matched events counter
>+		processedEvents_ = 0;
>+		matchedEvents_ = 0;
>+	}
>+
>+	/**
>+	 * Returns the list of start events.
>+	 * @return The list of start events.
>+	 */
>+	public Collection<String> getStartEvents() {
>+		return match_.values();
>+	}
>+
>+	/**
>+	 * Returns the list of end events.
>+	 * @return The list of end events.
>+	 */
>+	public Set<String> getEndEvents() {
>+		return match_.keySet();
>+	}
>+	
>+	/**
>+	 * Returns the alphabetically-sorted list of start/end events pairs.
>+	 * @return The alphabetically-sorted list of start/end events pairs.
>+	 */
>+	public Pair<Vector<String>,Vector<String>> getEvents() {
>+		Vector<String> start = new Vector<String>( getStartEvents() );
>+		Vector<String> end = new Vector<String>( match_.size() );
>+		
>+		Collections.sort(start);
>+		for (int i = 0; i < start.size(); i++) {
>+			end.add( inverseMatch_.get(start.get(i)) );
>+		}
>+		
>+		return new Pair<Vector<String>,Vector<String>>(start, end);
>+	}
>+	
>+	/**
>+	 * Adds a match to the list of events pairs.
>+	 * @param startType The start event type.
>+	 * @param endType The end event type.
>+	 */
>+	public void addMatch(String startType, String endType) {
>+		match_.put(endType, startType);
>+		inverseMatch_.put(startType, endType);
>+	}
>+
>+	/**
>+	 * Removes a matched pair based on the their type.
>+	 * 
>+	 * Note : For now, only the pair's end type is used, since a type
>+	 * can only be either one start or one end. This function takes both types
>+	 * to account for the future, if a pairing process ever becomes more complex.
>+	 * 
>+	 * @param startType The type of the pair's start type.
>+	 * @param endType The type of the pair's end type.
>+	 */
>+	public void removeMatch(String startType, String endType) {
>+		match_.remove(endType);
>+		inverseMatch_.remove(startType);
>+	}
>+	
>+	/**
>+	 * Returns the list of all event possible types.
>+	 * @return The list of all event possible types.
>+	 */
>+	public Vector<String> getTypeList() {
>+		// Reserve some space for the 103 default event types.
>+		Vector<String> eventsList = new Vector<String>(103);
>+		
>+		eventsList.add(ADD_TO_PAGE_CACHE);
>+		eventsList.add(BIO_BACKMERGE);
>+		eventsList.add(BIO_FRONTMERGE);
>+		eventsList.add(BIO_QUEUE);
>+		eventsList.add(BUFFER_WAIT_END);
>+		eventsList.add(BUFFER_WAIT_START);
>+		eventsList.add(CALL);
>+		eventsList.add(CLOSE);
>+		eventsList.add(CORE_MARKER_FORMAT);
>+		eventsList.add(CORE_MARKER_ID);
>+		eventsList.add(DEV_RECEIVE);
>+		eventsList.add(DEV_XMIT);
>+		eventsList.add(END_COMMIT);
>+		eventsList.add(EXEC);
>+		eventsList.add(FILE_DESCRIPTOR);
>+		eventsList.add(GETRQ);
>+		eventsList.add(GETRQ_BIO);
>+		eventsList.add(IDT_TABLE);
>+		eventsList.add(INTERRUPT);
>+		eventsList.add(IOCTL);
>+		eventsList.add(IRQ_ENTRY);
>+		eventsList.add(IRQ_EXIT);
>+		eventsList.add(LIST_MODULE);
>+		eventsList.add(LLSEEK);
>+		eventsList.add(LSEEK);
>+		eventsList.add(NAPI_COMPLETE);
>+		eventsList.add(NAPI_POLL);
>+		eventsList.add(NAPI_SCHEDULE);
>+		eventsList.add(NETWORK_IPV4_INTERFACE);
>+		eventsList.add(NETWORK_IP_INTERFACE);
>+		eventsList.add(OPEN);
>+		eventsList.add(PAGE_FAULT_ENTRY);
>+		eventsList.add(PAGE_FAULT_EXIT);
>+		eventsList.add(PAGE_FAULT_GET_USER_ENTRY);
>+		eventsList.add(PAGE_FAULT_GET_USER_EXIT);
>+		eventsList.add(PAGE_FREE);
>+		eventsList.add(PLUG);
>+		eventsList.add(POLLFD);
>+		eventsList.add(PREAD64);
>+		eventsList.add(PRINTF);
>+		eventsList.add(PRINTK);
>+		eventsList.add(PROCESS_EXIT);
>+		eventsList.add(PROCESS_FORK);
>+		eventsList.add(PROCESS_FREE);
>+		eventsList.add(PROCESS_STATE);
>+		eventsList.add(PROCESS_WAIT);
>+		eventsList.add(READ);
>+		eventsList.add(REMAP);
>+		eventsList.add(REMOVE_FROM_PAGE_CACHE);
>+		eventsList.add(RQ_COMPLETE_FS);
>+		eventsList.add(RQ_COMPLETE_PC);
>+		eventsList.add(RQ_INSERT_FS);
>+		eventsList.add(RQ_INSERT_PC);
>+		eventsList.add(RQ_ISSUE_FS);
>+		eventsList.add(RQ_ISSUE_PC);
>+		eventsList.add(RQ_REQUEUE_PC);
>+		eventsList.add(SCHED_MIGRATE_TASK);
>+		eventsList.add(SCHED_SCHEDULE);
>+		eventsList.add(SCHED_TRY_WAKEUP);
>+		eventsList.add(SCHED_WAKEUP_NEW_TASK);
>+		eventsList.add(SELECT);
>+		eventsList.add(SEM_CREATE);
>+		eventsList.add(SEND_SIGNAL);
>+		eventsList.add(SHM_CREATE);
>+		eventsList.add(SLEEPRQ_BIO);
>+		eventsList.add(SOCKET_ACCEPT);
>+		eventsList.add(SOCKET_BIND);
>+		eventsList.add(SOCKET_CALL);
>+		eventsList.add(SOCKET_CONNECT);
>+		eventsList.add(SOCKET_CREATE);
>+		eventsList.add(SOCKET_GETPEERNAME);
>+		eventsList.add(SOCKET_GETSOCKNAME);
>+		eventsList.add(SOCKET_GETSOCKOPT);
>+		eventsList.add(SOCKET_LISTEN);
>+		eventsList.add(SOCKET_SETSOCKOPT);
>+		eventsList.add(SOCKET_SHUTDOWN);
>+		eventsList.add(SOCKET_SOCKETPAIR);
>+		eventsList.add(SOFTIRQ_ENTRY);
>+		eventsList.add(SOFTIRQ_EXIT);
>+		eventsList.add(SOFTIRQ_RAISE);
>+		eventsList.add(SOFTIRQ_VEC);
>+		eventsList.add(START_COMMIT);
>+		eventsList.add(STATEDUMP_END);
>+		eventsList.add(SYS_CALL_TABLE);
>+		eventsList.add(SYSCALL_ENTRY);
>+		eventsList.add(SYSCALL_EXIT);
>+		eventsList.add(TASKLET_LOW_ENTRY);
>+		eventsList.add(TASKLET_LOW_EXIT);
>+		eventsList.add(TCPV4_RCV);
>+		eventsList.add(TIMER_ITIMER_EXPIRED);
>+		eventsList.add(TIMER_ITIMER_SET);
>+		eventsList.add(TIMER_SET);
>+		eventsList.add(TIMER_TIMEOUT);
>+		eventsList.add(TIMER_UPDATE_TIME);
>+		eventsList.add(UDPV4_RCV);
>+		eventsList.add(UNPLUG_IO);
>+		eventsList.add(UNPLUG_TIMER);
>+		eventsList.add(VM_MAP);
>+		eventsList.add(VPRINTK);
>+		eventsList.add(WAIT_ON_PAGE_END);
>+		eventsList.add(WAIT_ON_PAGE_START);
>+		eventsList.add(WRITE);
>+		eventsList.add(WRITEV);
>+		
>+		return eventsList;
>+	}
>+	
>+	/**
>+	 * Returns the number of events processed.
>+	 * @return The number of events processed.
>+	 */
>+	public int getNBProcessedEvents() {
>+		return processedEvents_;
>+	}
>+	
>+	/**
>+	 * Returns the number of events matched.
>+	 * @return The number of events matched.
>+	 */
>+	public int getNBMatchedEvents() {
>+		return matchedEvents_;
>+	}
>+	
>+	/**
>+	 * Prints the stack content to the console.
>+	 */
>+	public void print() {
>+		stack_.printContent();
>+	}
>+	
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/StackWrapper.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/StackWrapper.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/matcher/StackWrapper.java	(revision 0)
>@@ -0,0 +1,141 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.matcher;
>+
>+import java.util.Collection;
>+import java.util.HashMap;
>+import java.util.Iterator;
>+import java.util.Set;
>+import java.util.Stack;
>+
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+
>+
>+/**
>+ * Stack pile.
>+ * 
>+ * TODO Change the types of the HashMaps from <String,String> to 
>+ * <Integer,Integer>, in order to take advantage of the compilation-time
>+ * String.hashCode() speedup over execution-time String hash computation.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class StackWrapper {
>+	
>+	/**
>+	 * Hash map of event stacks.
>+	 */
>+	private HashMap<String,Stack<LttngEvent>> stacks_ = null;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 */
>+	public StackWrapper() {
>+		stacks_ = new HashMap<String,Stack<LttngEvent>>();
>+	}
>+	
>+	/**
>+	 * Adds an event to the list of events of the same type.
>+	 * @param event The event to add to the list.
>+	 */
>+	public void put(LttngEvent event) {
>+		String key = event.getMarkerName();
>+		
>+		if (stacks_.containsKey(key)) {
>+			stacks_.get(key).add(event);
>+		} else {
>+			Stack<LttngEvent> newStack = new Stack<LttngEvent>();
>+			newStack.add(event);
>+			stacks_.put(key, newStack);
>+		}
>+	}
>+	
>+	/**
>+	 * Checks if the stack contains a list of events of the given type.
>+	 * @param key The type of events to check for.
>+	 * @return "true" if the stack contains events of the given type, "false" otherwise.
>+	 */
>+	public boolean containsKey(String key) {
>+		return stacks_.containsKey(key);
>+	}
>+	
>+	/**
>+	 * Returns the list of events of the given type.
>+	 * @param key The type of events to return.
>+	 * @return The list of events of the given type, or null.
>+	 */
>+	public Stack<LttngEvent> getStackOf(String key) {
>+		if (stacks_.containsKey(key)) {
>+			return stacks_.get(key);
>+		} else {
>+			return null;
>+		}
>+	}
>+	
>+	/**
>+	 * Removes the given event from the given stack list.
>+	 * @param key The given stack type.
>+	 * @param event The event to remove from the given stack type.
>+	 * @return "true" if the event was removed, "false" otherwise.
>+	 */
>+	public boolean removeEvent(String key, LttngEvent event) {
>+		Stack<LttngEvent> stack = stacks_.get(key);
>+		
>+		boolean removed = false;
>+
>+		try {
>+			/**
>+			 * TODO Correct this...
>+			 * Here, no matter what CPU or other content field, we always 
>+			 * remove the last event added to the stack. Should be 
>+			 * something like :
>+			 * return stack.remove(event);
>+			 */
>+			stack.pop();
>+			removed = true;
>+		} catch (Exception e) {
>+			e.printStackTrace();
>+		}
>+
>+		// Remove the stack from the stack list if it is empty
>+		if (stack.isEmpty()) {
>+			stacks_.remove(key);
>+		}
>+		
>+		return removed;
>+	}
>+	
>+	/**
>+	 * Clears the stack content.
>+	 */
>+	public void clear() {
>+		stacks_.clear();
>+	}
>+	
>+	/**
>+	 * Prints the content of the stack to the console.
>+	 */
>+	public void printContent() {
>+		Collection<Stack<LttngEvent>> values = stacks_.values();
>+		Iterator<Stack<LttngEvent>> valueIt = values.iterator();
>+		
>+		Set<String> keys = stacks_.keySet();
>+		Iterator<String> keyIt = keys.iterator();
>+		
>+		while ( valueIt.hasNext() && keyIt.hasNext() ) {
>+			Stack<LttngEvent> stack = valueIt.next();
>+			
>+			System.out.println( " " + keyIt.next() + " [" + stack.size() + "] : " + stack );
>+		}
>+	}
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/AnalyserState.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/AnalyserState.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/AnalyserState.java	(revision 0)
>@@ -0,0 +1,91 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.states;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.analysis.InterfaceMediator;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.facade.DataHandler;
>+
>+
>+/**
>+ * Abstract analyser state.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public abstract class AnalyserState extends DataHandler {
>+	
>+	/**
>+	 * State name.
>+	 */
>+	protected String stateName_;
>+	
>+	/**
>+	 * The state's next state.
>+	 */
>+	protected AnalyserState nextState_;
>+	
>+	/**
>+	 * Is the state cancelled ?
>+	 */
>+	protected boolean isCancelled_ = false;
>+	
>+	
>+	/**
>+	 * Abstract analyser state constructor.
>+	 * @param stateName The state name.
>+	 * @param nextState The state's next state.
>+	 */
>+	public AnalyserState(String stateName, AnalyserState nextState) {
>+		stateName_ = stateName;
>+		nextState_ = nextState;
>+		
>+		if (Config.PRINT_STATE_CONSTRUCTOR)
>+			System.out.println("[" + stateName_ + "]");
>+	}
>+	
>+	/**
>+	 * Abstract analyser state constructor.
>+	 * @param stateName The state name.
>+	 */
>+	public AnalyserState(String stateName) {
>+		this(stateName, null);
>+		
>+		isCancelled_ = false;
>+	}
>+	
>+	/**
>+	 * Process the state.
>+	 */
>+	public abstract void process();
>+	
>+	/**
>+	 * Cancel the state's activity (i.e. clear the stack and redraw the views).
>+	 */
>+	public void handleCancel() {
>+		isCancelled_ = true;
>+		
>+		EventMatcher.getInstance().clearStack();
>+		InterfaceMediator.getInstance().clearHistogramData();
>+		InterfaceMediator.getInstance().clearPointsBuffer();
>+		InterfaceMediator.getInstance().clearViews();
>+	}
>+	
>+	/**
>+	 * Returns the state's name.
>+	 * @return The state's name.
>+	 */
>+	public String getName() {
>+		return stateName_;
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/CounterState.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/CounterState.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/CounterState.java	(revision 0)
>@@ -0,0 +1,107 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.states;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.analysis.InterfaceMediator;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.Analyser;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.EventCountPerLatency;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.analysis.facade.TraceFacade;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.LatencyView;
>+import org.eclipse.linuxtools.tmf.event.TmfTimeRange;
>+import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
>+
>+
>+/**
>+ * Counts the event latencies.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class CounterState extends AnalyserState {
>+	
>+	/**
>+	 * Event counter, used to generate bar graphs.
>+	 */
>+	private EventCountPerLatency eventCounter_;
>+	
>+	/**
>+	 * Min trace latency.
>+	 */
>+	private long minLatency_;
>+	/**
>+	 * Max trace latency.
>+	 */
>+	private long maxLatency_;
>+	
>+
>+	/**
>+	 * Constructor.
>+	 * @param minLatency Min trace latency.
>+	 * @param maxLatency Max trace latency.
>+	 */
>+	public CounterState(long minLatency, long maxLatency) {
>+		super("Counter state");
>+		
>+		minLatency_ = minLatency;
>+		maxLatency_ = maxLatency;
>+		
>+		eventCounter_ = new EventCountPerLatency();
>+		
>+		int nbBars = InterfaceMediator.getInstance().getMaxBarNumberFromViews();
>+		eventCounter_.generateStandardLatencies(minLatency_, maxLatency_, nbBars);
>+		InterfaceMediator.getInstance().pushStandardLatenciesToViews( eventCounter_.getStandardLatencies() );
>+	}
>+
>+	@Override
>+	public void process() {
>+		if (Config.PRINT_COUNTER_STATE_STATUS)
>+			System.out.println(" CounterState.process()");
>+
>+		TmfExperiment<LttngEvent> experiment = LatencyView.getExperiment();
>+		
>+		TmfTimeRange timeRange = LatencyView.getTimeRange();
>+		
>+		TraceFacade.getInstance().getAllEvents(experiment, timeRange, this);
>+	}
>+
>+	@Override
>+	public void handleData(LttngEvent event) {
>+		if (isCancelled_)
>+			return;
>+		
>+		LttngEvent startEvent = EventMatcher.getInstance().process(event);
>+		
>+		if (startEvent != null) {
>+			long latency = event.getTimestamp().getValue() - startEvent.getTimestamp().getValue();
>+			ChartPoint timeValue = new ChartPoint(startEvent.getTimestamp().getValue(), latency);
>+			Pair<Integer,ChartPoint> numberValue = eventCounter_.updateStandardCounter(latency);
>+			
>+			InterfaceMediator.getInstance().addPointToViews( timeValue, numberValue );
>+		}
>+	}
>+	
>+	public void handleCompleted() {
>+		if (isCancelled_)
>+			return;
>+		
>+		EventMatcher.getInstance().clearStack();
>+		InterfaceMediator.getInstance().pushPointsToViews();
>+		InterfaceMediator.getInstance().redrawViews();
>+		
>+		Analyser.getInstance().changeState( new EmptyState() );
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/EmptyState.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/EmptyState.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/EmptyState.java	(revision 0)
>@@ -0,0 +1,45 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.states;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+
>+
>+/**
>+ * Empty state, for demonstration only.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class EmptyState extends AnalyserState {
>+
>+	/**
>+	 * Constructor.
>+	 */
>+	public EmptyState() {
>+		super("Empty state");
>+	}
>+
>+	@Override
>+	public void process() {
>+		if (Config.PRINT_EMPTY_STATE_STATUS) 
>+			System.out.println(" EmptyState.process()");
>+		
>+		// Nothing to do here...
>+	}
>+
>+	@Override
>+	public void handleData(LttngEvent event) {
>+		
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/MinMaxLatencyState.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/MinMaxLatencyState.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/states/MinMaxLatencyState.java	(revision 0)
>@@ -0,0 +1,108 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.states;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.analysis.InterfaceMediator;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.Analyser;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.facade.TraceFacade;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.LatencyView;
>+import org.eclipse.linuxtools.tmf.event.TmfTimeRange;
>+import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
>+
>+/**
>+ * State used to find out the min an max values for the view's horizontal axis.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class MinMaxLatencyState extends AnalyserState {
>+	
>+	/**
>+	 * Min latency time.
>+	 */
>+	private long latencyMin_;
>+	/**
>+	 * Max latency time.
>+	 */
>+	private long latencyMax_;
>+	
>+	/**
>+	 * Min trace time.
>+	 */
>+	private long timeMin_;
>+	/**
>+	 * Max trace time.
>+	 */
>+	private long timeMax_;
>+	
>+
>+	/**
>+	 * Constructor.
>+	 */
>+	public MinMaxLatencyState() {
>+		super("Min max latency state");
>+		
>+		// Initialise min and max latency times with some values
>+		latencyMin_ = Long.MAX_VALUE;
>+		latencyMax_ = Long.MIN_VALUE;
>+		
>+		// Initialise min and max trace times with some values
>+		timeMin_ = Long.MAX_VALUE;
>+		timeMax_ = Long.MIN_VALUE;
>+	}
>+
>+	public void process() {
>+		if (Config.PRINT_TIMERANGE_STATE_STATUS)
>+			System.out.println(" MinMaxLatencyState()");
>+
>+		TmfExperiment<LttngEvent> experiment = LatencyView.getExperiment();
>+		
>+		TmfTimeRange timeRange = LatencyView.getTimeRange();
>+		
>+		TraceFacade.getInstance().getAllEvents(experiment, timeRange, this);
>+	}
>+
>+	@Override
>+	public void handleData(LttngEvent event) {
>+		if (isCancelled_)
>+			return;
>+		
>+		LttngEvent startEvent = EventMatcher.getInstance().process(event);
>+		
>+		if (startEvent != null) {
>+			long latency = event.getTimestamp().getValue() - startEvent.getTimestamp().getValue();
>+			
>+			latencyMax_ = Math.max(latencyMax_, latency);
>+			latencyMin_ = Math.min(latencyMin_, latency);
>+		}
>+		
>+		
>+		timeMin_ = Math.min(timeMin_, event.getTimestamp().getValue());
>+		timeMax_ = Math.max(timeMax_, event.getTimestamp().getValue());
>+	}
>+	
>+	public void handleCompleted() {
>+		if (isCancelled_)
>+			return;
>+		
>+		EventMatcher.getInstance().clearStack();
>+		
>+		InterfaceMediator.getInstance().pushHorizontalAxisForGraph(timeMin_, timeMax_);
>+		InterfaceMediator.getInstance().pushVerticalAxisForGraph(latencyMin_, latencyMax_);
>+		InterfaceMediator.getInstance().pushHorizontalAxisForHistogram(latencyMin_, latencyMax_);
>+		
>+		Analyser.getInstance().changeState( new CounterState(latencyMin_, latencyMax_) );
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/EventCountPerLatency.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/EventCountPerLatency.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/EventCountPerLatency.java	(revision 0)
>@@ -0,0 +1,135 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Ali Jawar - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.utilities;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+
>+
>+/**
>+ * This class generates dynamically the standard latencies and updates the 
>+ * event count for each bin/bucket.
>+ * 
>+ * Standards latencies values are generated dynamically and depend to three 
>+ * variables: minLatency, maxLatency, nbBar.
>+ * 
>+ * <ul>
>+ * <li>minLatency is the smallest latency value</li>
>+ * <li>maxLatency is the biggest latency value</li>
>+ * <li>nbBar is the number of divisions along the axis of latencies</li>
>+ * </ul>
>+ * 
>+ * Algorithm complexity: O(1)... actually O(nbBar) but nbBar 
>+ * is limited to a constant.
>+ * 
>+ * @author Ali Jawhar
>+ * @author Philippe Sawicki
>+ */
>+public class EventCountPerLatency {
>+	
>+	/**
>+	 * Standard latencies values.
>+	 */
>+	private double[] standardLatencies_;
>+	
>+	/**
>+	 * One counter for each standard latency.
>+	 */
>+	private int[] standardCounter_;
>+	
>+	/**
>+	 * Distance between each latency.
>+	 */
>+	private double delta_;
>+	
>+	/**
>+	 * Minimum latency.
>+	 */
>+	private long minLatency_;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 */
>+	public EventCountPerLatency() {
>+		
>+	}
>+	
>+	/**
>+	 * Method to generate the standard latencies table.
>+	 * 
>+	 * @param minLatency Latency min.
>+	 * @param maxLatency Latency max.
>+	 * @param nbBars Number of bars in the histogram graph.
>+	 */
>+	public void generateStandardLatencies(long minLatency, long maxLatency, int nbBars) {
>+		delta_ = (double)(maxLatency-minLatency) / nbBars;
>+		minLatency_ = minLatency;
>+		
>+		// Initialisation of standard counter table
>+		standardCounter_ = new int[nbBars+1]; // one counter for each standard latency
>+		for (int i = 0; i < standardCounter_.length; i++) { // initiate counters values
>+			standardCounter_[i] = 0;
>+		}
>+		
>+		// Create standard latencies table
>+		standardLatencies_ = new double[nbBars+1];
>+		
>+		for (int i = 0 ; i < standardLatencies_.length; i++) {
>+			standardLatencies_[i] = minLatency + (i * delta_);
>+		}
>+	}
>+	
>+	/**
>+	 * Updates the standard latencies counter.
>+	 * @param latency The latency to add to the counter.
>+	 * @return The new updates values (index of standard latency ; new counter value).
>+	 */
>+	public Pair<Integer,ChartPoint> updateStandardCounter(long latency) {
>+		int index = 0;
>+		index = (int)((latency - minLatency_) / delta_);
>+		standardCounter_[index]++;
>+		ChartPoint point = new ChartPoint((long)standardLatencies_[index], standardCounter_[index]);
>+		return new Pair<Integer,ChartPoint>(index, point);
>+	}
>+
>+	/**
>+	 * Prints the standard latencies table.
>+	 */
>+	public void printStandardLatencies() {
>+		System.out.print("The standard latencies table is: ");
>+		
>+		for (int i = 0; i < standardLatencies_.length; i++) {
>+			System.out.print(standardLatencies_[i] + " ");
>+		}
>+		System.out.println();
>+	}
>+	
>+	/**
>+	 * Prints the event count per standard latency.
>+	 */
>+	public void printEventCountPerStandardLatency() {
>+		System.out.println("here is the Event count per standard latency: "); 
>+		
>+		for (int j = 0; j < standardLatencies_.length; j++) {			
>+			System.out.println("latency = " + standardLatencies_[j] + " EventCount = " + standardCounter_[j]);	
>+		}
>+	}
>+
>+	/**
>+	 * Returns the standard latencies table.
>+	 * @return The standard latencies table.
>+	 */
>+	public double[] getStandardLatencies() {
>+		return standardLatencies_;
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/Pair.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/Pair.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/analyser/utilities/Pair.java	(revision 0)
>@@ -0,0 +1,119 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.analysis.analyser.utilities;
>+
>+
>+/**
>+ * Pair utility class, encapsulates a pair of objects.
>+ * 
>+ * @author Philippe Sawicki
>+ *
>+ * @param <A> The type of the first object.
>+ * @param The type of the second object.
>+ */
>+public class Pair<A,B> {
>+	
>+	/**
>+	 * A reference to the first object.
>+	 */
>+	protected A first_;
>+	/**
>+	 * A reference to the second object.
>+	 */
>+	protected B second_;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param first The pair's first object.
>+	 * @param second The pair's second object.
>+	 */
>+	public Pair(A first, B second) {
>+		first_ = first;
>+		second_ = second;
>+	}
>+	
>+	/**
>+	 * Constructor.
>+	 */
>+	public Pair() {
>+		this(null, null);
>+	}
>+	
>+	/**
>+	 * Pair hash code.
>+	 */
>+	public int hashCode() {
>+		int hashFirst = first_ != null ? first_.hashCode() : 0;
>+		int hashSecond = second_ != null ? second_.hashCode() : 0;
>+		
>+		return (hashFirst + hashSecond) * hashSecond + hashFirst;
>+	}
>+	
>+	/**
>+	 * Object comparison.
>+	 */
>+	@SuppressWarnings("unchecked")
>+	public boolean equals(Object other) {
>+		if (other instanceof Pair) {
>+			Pair<A,B> otherPair = (Pair<A,B>) other;
>+			return (
>+				( first_ == otherPair.first_ ||
>+					( first_ != null && otherPair.first_ != null &&
>+					 first_.equals(otherPair.first_))) &&
>+				( second_ == otherPair.second_ ||
>+					( second_ != null && otherPair.second_ != null &&
>+					 second_.equals(otherPair.second_)))
>+			);
>+		}
>+		return false;
>+	}
>+	
>+	/**
>+	 * Object to string.
>+	 */
>+	public String toString() {
>+		return "(" + first_ + ", " + second_ + ")";
>+	}
>+	
>+	/**
>+	 * Returns a reference to the pair's first object.
>+	 * @return A reference to the pair's first object.
>+	 */
>+	public A getFirst() {
>+		return first_;
>+	}
>+	
>+	/**
>+	 * Sets the pair's first object.
>+	 * @param first The pair's first object.
>+	 */
>+	public void setFirst(A first) {
>+		first_ = first;
>+	}
>+	
>+	/**
>+	 * Returns a reference to the pair's second object.
>+	 * @return A reference to the pair's second object.
>+	 */
>+	public B getSecond() {
>+		return second_;
>+	}
>+	
>+	/**
>+	 * Sets the pair's second object.
>+	 * @param second The pair's second object.
>+	 */
>+	public void setSecond(B second) {
>+		second_ = second;
>+	}
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/AbstractView.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/AbstractView.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/AbstractView.java	(revision 0)
>@@ -0,0 +1,313 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.handlers.ViewHandler;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.AbstractMouseListener;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.AbstractPaintListener;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.ZoomListener;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.SWTException;
>+import org.eclipse.swt.widgets.Canvas;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Display;
>+
>+
>+/**
>+ * Abstract view.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public abstract class AbstractView extends Canvas {
>+	
>+	/**
>+	 * Parent composite node.
>+	 */
>+	protected Composite parent_;
>+
>+	/**
>+	 * View handler (retrieves the information).
>+	 */
>+	protected ViewHandler viewHandler_ = null;
>+	
>+	/**
>+	 * Horizontal axis min value.
>+	 */
>+	protected long xMin_;
>+	/**
>+	 * Horizontal axis max value.
>+	 */
>+	protected long xMax_;
>+	/**
>+	 * Vertical axis min value.
>+	 */
>+	protected long yMin_;
>+	/**
>+	 * Vertical axis max value.
>+	 */
>+	protected long yMax_;
>+	
>+	/**
>+	 * Paint listener.
>+	 */
>+	protected AbstractPaintListener paintListener_;
>+	
>+	/**
>+	 * Zoom listener, to zoom in and out of a graph using the scroll wheel.
>+	 */
>+	protected ZoomListener zoomListener_;
>+	
>+	/**
>+	 * Tooltip listener.
>+	 */
>+	protected AbstractMouseListener mouseListener_;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param parent The parent composite node.
>+	 * @param style The SWT style to use to render the view.
>+	 */
>+	public AbstractView(Composite parent, int style) {
>+		super(parent, style);
>+		
>+		parent_ = parent;
>+	}
>+	
>+	/**
>+	 * Sets the min value of the horizontal axis.
>+	 * @param xMin The min value of the horizontal axis.
>+	 */
>+	public void setXMin(long xMin) {
>+		xMin_ = xMin;
>+	}
>+	
>+	/**
>+	 * Returns the min value of the horizontal axis.
>+	 * @return The min value of the horizontal axis.
>+	 */
>+	public long getXMin() {
>+		return xMin_;
>+	}
>+	
>+	/**
>+	 * Sets the max value of the horizontal axis.
>+	 * @param xMax The max value of the horizontal axis.
>+	 */
>+	public void setXMax(long xMax) {
>+		xMax_ = xMax;
>+	}
>+	
>+	/**
>+	 * Returns the max value of the horizontal axis.
>+	 * @return The max value of the horizontal axis.
>+	 */
>+	public long getXMax() {
>+		return xMax_;
>+	}
>+	
>+	/**
>+	 * Sets the min value of the vertical axis.
>+	 * @param yMin The min value of the vertical axis.
>+	 */
>+	public void setYMin(long yMin) {
>+		yMin_ = yMin;
>+	}
>+	/**
>+	 * Returns the min value of the vertical axis.
>+	 * @return The min value of the vertical axis.
>+	 */
>+	public long getYMin() {
>+		return yMin_;
>+	}
>+	
>+	/**
>+	 * Sets the max value of the vertical axis.
>+	 * @param yMax The max value of the vertical axis.
>+	 */
>+	public void setYMax(long yMax) {
>+		yMax_ = yMax;
>+	}
>+	/**
>+	 * Returns the max value of the vertical axis.
>+	 * @return The max value of the vertical axis.
>+	 */
>+	public long getYMax() {
>+		return yMax_;
>+	}
>+
>+	/**
>+	 * Adds a point to the view.
>+	 * @param point The point to add to the view.
>+	 */
>+	public abstract void addPoint(int point);
>+	
>+	/**
>+	 * Adds a buffer of points to the view.
>+	 * @param points The buffer of points to add to the view.
>+	 * @param nbPoints The number of points in the buffer.
>+	 */
>+	public abstract void addPoints(ChartPoint[] points, int nbPoints);
>+	
>+	/**
>+	 * Clears the view.
>+	 */
>+	public abstract void clear();
>+	
>+	/**
>+	 * Clears the background of the view but keeps min and max values.
>+	 */
>+	public abstract void clearBackground();
>+	
>+	/**
>+	 * Clears the points buffer, if any exists.
>+	 */
>+	public void clearPoints() {
>+		paintListener_.clearPoints();
>+	}
>+	
>+	/**
>+	 * Sets the view handler.
>+	 * @param viewHandler The view handler.
>+	 */
>+	public void setViewHandler(ViewHandler viewHandler) {
>+		viewHandler_ = viewHandler;
>+	}
>+	
>+	/**
>+	 * Draw horizontal label each "nbTicks" ticks.
>+	 * @param nbTicks The draw interval.
>+	 */
>+	public void drawLabelEachNTicks(int nbTicks) {
>+		paintListener_.drawLabelEachNTicks(nbTicks);
>+	}
>+	
>+	/**
>+	 * Sets the title of the graph.
>+	 * @param graphTitle The title of the graph.
>+	 */
>+	public void setGraphTitle(String graphTitle) {
>+		paintListener_.setGraphTitle(graphTitle);
>+	}
>+	
>+	/**
>+	 * Sets the horizontal axis label.
>+	 * @param xLabel The horizontal axis label.
>+	 * @param offset The horizontal axis draw offset (in pixels).
>+	 */
>+	public void setXAxisLabel(String xLabel, int offset) {
>+		paintListener_.setXAxisLabel(xLabel, offset);
>+	}
>+
>+	/**
>+	 * Sets the vertical axis label.
>+	 * @param yLabel The vertical axis label.
>+	 */
>+	public void setYAxisLabel(String yLabel) {
>+		paintListener_.setYAxisLabel(yLabel);
>+	}
>+	
>+	/**
>+	 * Asks for the view to be redrawn, synchronously or asynchronously.
>+	 * @param asyncRedraw If "true", the view will be redrawn asynchronously, otherwise it will be 
>+	 * redraw synchronously.
>+	 */
>+	public void askForRedraw(boolean asyncRedraw) {
>+		if (asyncRedraw == true) {
>+			Display.getDefault().asyncExec(new Runnable() {
>+				public void run() {
>+					try {
>+						redraw();
>+					} catch (SWTException e) {
>+						// ...
>+					}
>+				}
>+			});
>+		} else {
>+			Display.getDefault().syncExec(new Runnable() {
>+				public void run() {
>+					try {
>+						redraw();
>+					} catch (SWTException e) {
>+						// ...
>+					}
>+				}
>+			});
>+		}
>+	}
>+	
>+	/**
>+	 * Asks for the view to be redrawn (asynchronously).
>+	 */
>+	public void askForRedraw() {
>+		askForRedraw(true);
>+	}
>+	
>+	/**
>+	 * Returns the zoom factor for the canvas.
>+	 * @return The zoom factor for the canvas.
>+	 */
>+	public int getZoomFactor() {
>+		if (zoomListener_ != null) {
>+			return zoomListener_.getZoomFactor();
>+		} else {
>+			return 1;
>+		}
>+	}
>+
>+	/**
>+	 * Returns the zoom increment for the canvas.
>+	 * @return The zoom increment for the canvas.
>+	 */
>+	public int getZoomIncrement() {
>+		if (zoomListener_ != null) {
>+			return zoomListener_.getZoomIncrement();
>+		} else {
>+			return 1;
>+		}
>+	}
>+	
>+	/**
>+	 * Redraws the title after a zoom to display the new zoom factor.
>+	 */
>+	public void redrawTitle() {
>+		paintListener_.paintGraphTitle();
>+	}
>+	
>+	/**
>+	 * Removes the view's listeners before disposing of it.
>+	 */
>+	public void dispose() {
>+		try {
>+			if (paintListener_ != null) {
>+				removePaintListener(paintListener_);
>+				paintListener_ = null;
>+			} 
>+			if (zoomListener_ != null) {
>+				removeListener(SWT.MouseWheel, zoomListener_);
>+				zoomListener_ = null;
>+			}
>+			if (mouseListener_ != null) {
>+				removeListener(SWT.MouseMove, mouseListener_);
>+				mouseListener_ = null;
>+			}
>+		} catch (SWTException e) {
>+ 		// This exception will be thrown if the user closes the view
>+ 		// while it is receiving data from the Analyser.
>+ 		
>+ 		// ...
>+		}
>+		
>+		super.dispose();
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/ChartPoint.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/ChartPoint.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/ChartPoint.java	(revision 0)
>@@ -0,0 +1,80 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+
>+/**
>+ * Class holding data values to later draw points/bars to the screen.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class ChartPoint {
>+	
>+	/**
>+	 * Point x-value.
>+	 */
>+	private long x_;
>+	/**
>+	 * Point y-value.
>+	 */
>+	private long y_;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param x The point's x-value.
>+	 * @param y The point's y-value.
>+	 */
>+	public ChartPoint(long x, long y) {
>+		x_ = x;
>+		y_ = y;
>+	}
>+	
>+	/**
>+	 * Constructor.
>+	 */
>+	public ChartPoint() {
>+		this(0L, 0L);
>+	}
>+	
>+	/**
>+	 * Sets the point's x-value.
>+	 * @param x The point's x-value.
>+	 */
>+	public void setX(long x) {
>+		x_ = x;
>+	}
>+	
>+	/**
>+	 * Returns the point's x-value.
>+	 * @return The point's x-value.
>+	 */
>+	public long getX() {
>+		return x_;
>+	}
>+	
>+	/**
>+	 * Sets the point's y-value.
>+	 * @param y The point's y-value.
>+	 */
>+	public void setY(long y) {
>+		y_ = y;
>+	}
>+	
>+	/**
>+	 * Returns the point's y-value.
>+	 * @return The point's y-value.
>+	 */
>+	public long getY() {
>+		return y_;
>+	}
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AbstractDialog.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AbstractDialog.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AbstractDialog.java	(revision 0)
>@@ -0,0 +1,214 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.dialogs;
>+
>+import java.util.Vector;
>+
>+import org.eclipse.jface.dialogs.IDialogSettings;
>+import org.eclipse.jface.dialogs.IMessageProvider;
>+import org.eclipse.jface.dialogs.TitleAreaDialog;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.ui.LTTngUiPlugin;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.LatencyView;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Control;
>+import org.eclipse.swt.widgets.Display;
>+import org.eclipse.swt.widgets.Shell;
>+
>+
>+/**
>+ * Abstract dialog class, regroups the main functions shared by all the 
>+ * different dialogs.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public abstract class AbstractDialog extends TitleAreaDialog {
>+	
>+	/**
>+	 * The dialog window title.
>+	 */
>+	protected String dialogTitle_;
>+	/**
>+	 * The dialog window message.
>+	 */
>+	protected String dialogMessage_;
>+	
>+	/**
>+	 * The code returned by the dialog when the user closes the "Add" dialog.
>+	 */
>+	public static final int ADD = 53445;
>+	/**
>+	 * The code returned by the dialog when the user closes the "Delete" dialog.
>+	 */
>+	public static final int DELETE = ADD+1;
>+	/**
>+	 * The code returned by the dialog when the user resets the latency pair to default.
>+	 */
>+	public static final int RESET = DELETE+1;
>+	
>+	/**
>+	 * String ID of the number of pairs saved in the settings file.
>+	 */
>+	protected static final String LATENCY_NB_MATCH_PAIRS = "NB_LATENCY_MATCH_PAIRS";
>+	/**
>+	 * String ID of the start event pairs saved in the settings file.
>+	 */
>+	protected static final String LATENCY_PAIRS_START = "LATENCY_PAIRS_START";
>+	/**
>+	 * String ID of the end event pairs saved in the settings file.
>+	 */
>+	protected static final String LATENCY_PAIRS_END = "LATENCY_PAIRS_END";
>+	
>+	/**
>+	 * Dialog settings, saves the event pairs across sessions.
>+	 */
>+	protected IDialogSettings settings_;
>+	
>+	/**
>+	 * Do the graphs canvas need to be redrawn due to latency pairs changes ?
>+	 */
>+	protected boolean redrawGraphs_ = false;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param parentShell The parent shell.
>+	 * @param title The dialog window's title.
>+	 * @param message The dialog window's message.
>+	 */
>+	public AbstractDialog(Shell parentShell, String title, String message) {
>+		super(parentShell);
>+		dialogTitle_ = title;
>+		dialogMessage_ = message;
>+		
>+		settings_ = LTTngUiPlugin.getDefault().getDialogSettings();
>+	}
>+	
>+	/**
>+	 * Constructor
>+	 * @param parentShell The parent shell.
>+	 * @param title The dialog window's title.
>+	 */
>+	public AbstractDialog(Shell parentShell, String title) {
>+		this(parentShell, title, "");
>+	}
>+
>+	/**
>+	 * Constructor.
>+	 * @param parentShell The parent shell.
>+	 */
>+	public AbstractDialog(Shell parentShell) {
>+		this(parentShell, "", "");
>+	}
>+	
>+	/**
>+	 * Creates the dialog.
>+	 * 
>+	 * Note : Since there is an issue with the table's vertical scrollbar,
>+	 * this dialog "resize" is necessary to ensure a minimal height for the window.
>+	 */
>+	@Override
>+	public void create() {
>+		super.create();
>+		// Set the title
>+		setTitle(dialogTitle_);
>+		// Set the message
>+		setMessage(dialogMessage_, IMessageProvider.INFORMATION);
>+		
>+		// Position the dialog at the center of the screen
>+		int windowWidth = Display.getCurrent().getPrimaryMonitor().getBounds().width;
>+		int windowHeight = Display.getCurrent().getPrimaryMonitor().getBounds().height;
>+		int dialogWidth = getShell().getSize().x;
>+		int dialogHeight = windowHeight / 2;
>+		
>+		int x = (windowWidth - dialogWidth) / 2;
>+		int y = (windowHeight - dialogHeight) / 2;
>+		
>+		getShell().setSize(getShell().getSize().x, dialogHeight);
>+		getShell().setLocation(x, y);
>+	}
>+	
>+	/**
>+	 * Formats the "#" of the event in the table by adding "00" before it.
>+	 * @param number The number to format.
>+	 * @param max The maximum number of event pairs in the list.
>+	 * @return The formatted string.
>+	 */
>+	protected String formatListNumber(int number, int max) {
>+		return String.format("%0"+max+"d", number);
>+	}
>+	
>+	/**
>+	 * Returns the match pairs saved in the settings file.
>+	 * @return The match pairs saved in the settings file.
>+	 */
>+	protected Pair<Vector<String>,Vector<String>> getMatchPairs() {
>+		try {
>+			// Check if the settings file has already some data (i.e. try provoking an exception)
>+			settings_.getInt(LATENCY_NB_MATCH_PAIRS);
>+			
>+			String[] starts = settings_.getArray(LATENCY_PAIRS_START);
>+			String[] ends = settings_.getArray(LATENCY_PAIRS_END);
>+
>+			EventMatcher.getInstance().resetMatches();
>+			for (int i = 0; i < starts.length; i++) {
>+				EventMatcher.getInstance().addMatch(starts[i], ends[i]);
>+			}
>+			
>+			return EventMatcher.getInstance().getEvents();
>+		} catch (NumberFormatException e) {
>+			return EventMatcher.getInstance().getEvents();
>+		}
>+	}
>+	
>+	/**
>+	 * Saves the event match pairs to a settings file.
>+	 * @param start The start event types.
>+	 * @param end The end event types.
>+	 */
>+	protected void saveMatchPairs(Vector<String> start, Vector<String> end) {
>+		settings_.put(LATENCY_NB_MATCH_PAIRS, start.size());
>+		settings_.put(LATENCY_PAIRS_START, start.toArray(new String[]{}));
>+		settings_.put(LATENCY_PAIRS_END, end.toArray(new String[]{}));
>+	}
>+	
>+	/**
>+	 * Ask the LatencyView to send a new analysis request to the views, so that they can be redrawn.
>+	 */
>+	protected void redrawGraphs() {
>+		LatencyView.sendAnalysisRequest();
>+	}
>+
>+	/**
>+	 * Creates the dialog area.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected abstract Control createDialogArea(Composite parent);
>+
>+	/**
>+	 * Creates the buttons for the button bar.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected abstract void createButtonsForButtonBar(Composite parent);
>+	
>+	/**
>+	 * Is the dialog resizable ?
>+	 */
>+	@Override
>+	protected boolean isResizable() {
>+		return true;
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AddDialog.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AddDialog.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/AddDialog.java	(revision 0)
>@@ -0,0 +1,468 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.dialogs;
>+
>+import java.util.Vector;
>+
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.Messages;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.layout.GridData;
>+import org.eclipse.swt.layout.GridLayout;
>+import org.eclipse.swt.widgets.Button;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Control;
>+import org.eclipse.swt.widgets.Event;
>+import org.eclipse.swt.widgets.Listener;
>+import org.eclipse.swt.widgets.Shell;
>+import org.eclipse.swt.widgets.Table;
>+import org.eclipse.swt.widgets.TableColumn;
>+import org.eclipse.swt.widgets.TableItem;
>+
>+
>+/**
>+ * Add dialog, lets the user add custom start/end event pairs.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class AddDialog extends AbstractDialog {
>+	
>+	/**
>+	 * The dialog's start table.
>+	 */
>+	protected Table startTable_;
>+	/**
>+	 * The dialog's end table.
>+	 */
>+	protected Table endTable_;
>+	/**
>+	 * The dialog's list table.
>+	 */
>+	protected Table listTable_;
>+	
>+	/**
>+	 * Start table columns.
>+	 */
>+	protected TableColumn[] startColumns_;
>+	/**
>+	 * End table columns.
>+	 */
>+	protected TableColumn[] endColumns_;
>+	/**
>+	 * List table columns.
>+	 */
>+	protected TableColumn[] listColumns_;
>+	
>+	/**
>+	 * Start table column names (header titles).
>+	 */
>+	protected static final String[] START_COLUMN_NAMES = {"", Messages.getString("LatencyView.Dialogs.AddEvents.Columns.Start")};
>+	/**
>+	 * End table column names (header titles).
>+	 */
>+	protected static final String[] END_COLUMN_NAMES = {"", Messages.getString("LatencyView.Dialogs.AddEvents.Columns.End")};
>+	/**
>+	 * List table column names (header titles).
>+	 */
>+	protected static final String[] LIST_COLUMN_NAMES = {"#", Messages.getString("LatencyView.Dialogs.AddEvents.Columns.List.Trigger"), Messages.getString("LatencyView.Dialogs.AddEvents.Columns.List.End")};
>+	/**
>+	 * Column widths.
>+	 */
>+	protected static final int[] COLUMN_WIDTHS = {25, 250, 250};
>+	
>+	/**
>+	 * Possible event types.
>+	 */
>+	protected Vector<String> eventTypes_ = new Vector<String>();
>+	
>+	/**
>+	 * Start event types.
>+	 */
>+	protected Vector<String> eventStartTypes_;
>+	/**
>+	 * End event types.
>+	 */
>+	protected Vector<String> eventEndTypes_;
>+	
>+	/**
>+	 * Selected start type.
>+	 */
>+	protected String startType_;
>+	/**
>+	 * Selected end type.
>+	 */
>+	protected String endType_;
>+	
>+
>+	/**
>+	 * Constructor.
>+	 * @param parentShell The parent shell.
>+	 * @param title The dialog's window title.
>+	 * @param message The dialog's window message.
>+	 */
>+	public AddDialog(Shell parentShell, String title, String message) {
>+		super(parentShell, title, message);
>+		
>+		// Get the possible events from the list
>+		eventTypes_ = EventMatcher.getInstance().getTypeList();
>+		
>+		// Get the list of start and end types from the EventMatcher
>+		Pair<Vector<String>,Vector<String>> pair = getMatchPairs();
>+		eventStartTypes_ = pair.getFirst();
>+		eventEndTypes_ = pair.getSecond();
>+	}
>+	
>+	/**
>+	 * Creates the start table's columns (i.e. the table header).
>+	 */
>+	protected void createStartColumns() {
>+		startColumns_ = new TableColumn[START_COLUMN_NAMES.length];
>+		for (int i = 0; i < START_COLUMN_NAMES.length; i++) {
>+			startColumns_[i] = new TableColumn(startTable_, SWT.LEFT);
>+			startColumns_[i].setText(START_COLUMN_NAMES[i]);
>+			startColumns_[i].setWidth(COLUMN_WIDTHS[i]);
>+		}
>+	}
>+	
>+	/**
>+	 * Creates the end table's columns (i.e. the table header).
>+	 */
>+	protected void createEndColumns() {
>+		endColumns_ = new TableColumn[END_COLUMN_NAMES.length];
>+		for (int i = 0; i < END_COLUMN_NAMES.length; i++) {
>+			endColumns_[i] = new TableColumn(endTable_, SWT.LEFT);
>+			endColumns_[i].setText(END_COLUMN_NAMES[i]);
>+			endColumns_[i].setWidth(COLUMN_WIDTHS[i]);
>+		}
>+	}
>+	
>+	/**
>+	 * Creates the list table's columns (i.e. the table header).
>+	 */
>+	protected void createListColumns() {
>+		listColumns_ = new TableColumn[LIST_COLUMN_NAMES.length];
>+		for (int i = 0; i < LIST_COLUMN_NAMES.length; i++) {
>+			listColumns_[i] = new TableColumn(listTable_, SWT.LEFT);
>+			listColumns_[i].setText(LIST_COLUMN_NAMES[i]);
>+			listColumns_[i].setWidth(COLUMN_WIDTHS[i]);
>+		}
>+	}
>+	
>+	/**
>+	 * Creates the start column list.
>+	 * @param parent The parent composite.
>+	 */
>+	protected void createStartColumn(Composite parent) {
>+		final int style = SWT.SINGLE | SWT.CHECK | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL;
>+		GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
>+		startTable_ = new Table(parent, style);
>+		startTable_.setLayoutData(layoutData);
>+		
>+		// Some cosmetic enhancements
>+		startTable_.setHeaderVisible(true);
>+		startTable_.setLinesVisible(true);
>+		
>+		createStartColumns();
>+		
>+		for (int i = 0; i < eventTypes_.size(); i++) {
>+			TableItem item = new TableItem(startTable_, SWT.RIGHT);
>+			
>+			String[] columns = {
>+					eventTypes_.get(i),
>+					eventTypes_.get(i)
>+			};
>+			
>+			item.setText(columns);
>+		}
>+		
>+		startTable_.setItemCount( eventTypes_.size() );
>+		
>+		startTable_.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				if (event.detail == SWT.CHECK) {
>+					TableItem[] items = startTable_.getItems();
>+					for (TableItem item : items) {
>+						if (item != event.item) {
>+							item.setChecked(false);
>+						}
>+					}
>+				}
>+			}
>+		});
>+	}
>+
>+	/**
>+	 * Creates the end column list.
>+	 * @param parent The parent composite.
>+	 */
>+	protected void createEndColumn(Composite parent) {
>+		final int style = SWT.SINGLE | SWT.CHECK | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL;
>+		GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
>+		endTable_ = new Table(parent, style);
>+		endTable_.setLayoutData(layoutData);
>+		
>+		// Some cosmetic enhancements
>+		endTable_.setHeaderVisible(true);
>+		endTable_.setLinesVisible(true);
>+		
>+		createEndColumns();
>+		
>+		for (int i = 0; i < eventTypes_.size(); i++) {
>+			TableItem item = new TableItem(endTable_, SWT.RIGHT);
>+			
>+			String[] columns = {
>+					eventTypes_.get(i),
>+					eventTypes_.get(i)
>+			};
>+			
>+			item.setText(columns);
>+		}
>+		
>+		endTable_.setItemCount( eventTypes_.size() );
>+		
>+		endTable_.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				if (event.detail == SWT.CHECK) {
>+					TableItem[] items = endTable_.getItems();
>+					for (TableItem item : items) {
>+						if (item != event.item) {
>+							item.setChecked(false);
>+						}
>+					}
>+				}
>+			}
>+		});
>+	}
>+
>+	/**
>+	 * Creates the list column for already existing event pairs.
>+	 * @param parent The parent composite.
>+	 */
>+	protected void createListColumn(Composite parent) {
>+		final int style = SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL;
>+		GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
>+		layoutData.horizontalSpan = 2;
>+		listTable_ = new Table(parent, style);
>+		listTable_.setLayoutData(layoutData);
>+		
>+		// Some cosmetic enhancements
>+		listTable_.setHeaderVisible(true);
>+		listTable_.setLinesVisible(true);
>+		
>+		createListColumns();
>+		
>+		for (int i = 0; i < eventStartTypes_.size(); i++) {
>+			TableItem item = new TableItem(listTable_, SWT.RIGHT);
>+			
>+			String max = "" + eventStartTypes_.size();
>+			String number = formatListNumber(i+1, max.length());
>+			
>+			String[] columns = {
>+					number,
>+					eventStartTypes_.get(i),
>+					eventEndTypes_.get(i)
>+			};
>+			
>+			item.setText(columns);
>+		}
>+		
>+		listTable_.setItemCount( 103 );
>+		listTable_.remove(eventTypes_.size(), 103-1);
>+	}
>+
>+	/**
>+	 * Creates the dialog area.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected Control createDialogArea(Composite parent) {
>+		GridLayout layout = new GridLayout(2, true);
>+		parent.setLayout(layout);
>+		
>+		createStartColumn(parent);
>+		createEndColumn(parent);
>+		createListColumn(parent);
>+		
>+		return parent;
>+	}
>+
>+	/**
>+	 * Creates the buttons for the button bar.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected void createButtonsForButtonBar(Composite parent) {
>+		GridData gridData = new GridData();
>+		gridData.verticalAlignment = GridData.FILL;
>+		gridData.horizontalSpan = 1;
>+		gridData.grabExcessHorizontalSpace = true;
>+		gridData.grabExcessVerticalSpace = true;
>+		gridData.horizontalAlignment = SWT.RIGHT;
>+		
>+		parent.setLayoutData(gridData);
>+		
>+		// Create the "Add" button
>+		Button addButton = createButton(parent, ADD, Messages.getString("LatencyView.Dialogs.AddEvents.Buttons.Add"), false);
>+		addButton.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				if (isValidInput()) {
>+					// Add the event pair to the EventMatcher and save the pairs 
>+					EventMatcher.getInstance().addMatch(startType_, endType_);
>+					eventStartTypes_.add(startType_);
>+					eventEndTypes_.add(endType_);
>+					saveMatchPairs(eventStartTypes_, eventEndTypes_);
>+					
>+					Pair<Vector<String>,Vector<String>> pairs = EventMatcher.getInstance().getEvents();
>+					eventStartTypes_ = pairs.getFirst();
>+					eventEndTypes_ = pairs.getSecond();
>+					
>+					listTable_.removeAll();
>+					
>+					for (int i = 0; i < eventStartTypes_.size(); i++) {
>+						TableItem item = new TableItem(listTable_, SWT.RIGHT);
>+						
>+						String max = "" + eventStartTypes_.size();
>+						String number = formatListNumber(i+1, max.length());
>+						
>+						String[] columns = {
>+								number,
>+								eventStartTypes_.get(i),
>+								eventEndTypes_.get(i)
>+						};
>+						
>+						item.setText(columns);
>+					}
>+					
>+					saveMatchPairs(eventStartTypes_, eventEndTypes_);
>+				}
>+				
>+				redrawGraphs_ = true;
>+			}
>+		});
>+		
>+		// Create the "Close" button
>+		Button closeButton = createButton(parent, CANCEL, Messages.getString("LatencyView.Dialogs.AddEvents.Buttons.Close"), false);
>+		closeButton.addListener(SWT.Selection, new Listener() {
>+			@Override
>+			public void handleEvent(Event event) {
>+				setReturnCode(CANCEL);
>+				
>+				if (redrawGraphs_ == true)
>+					redrawGraphs();
>+				
>+				close();
>+			}
>+		});
>+	}
>+	
>+	/**
>+	 * Validate the list before adding event pairs.
>+	 * @return "true" if the input is valid, "false" otherwise.
>+	 */
>+	protected boolean isValidInput() {
>+		// Remove the previous error message
>+		setErrorMessage(null);
>+		
>+		boolean valid = true;
>+		
>+		// Check if an item from the start list is selected
>+		TableItem[] items = startTable_.getItems();
>+		startType_ = null;
>+		boolean startHasSelectedItem = false;
>+		for (int i = 0; i < items.length && !startHasSelectedItem; i++) {
>+			if (items[i].getChecked() == true) {
>+				startType_ = items[i].getText();
>+				startHasSelectedItem = true;
>+			}
>+		}
>+
>+		// Check if an item from the end list is selected
>+		items = endTable_.getItems();
>+		endType_ = null;
>+		boolean endHasSelectedItem = false;
>+		for (int i = 0; i < items.length && !endHasSelectedItem; i++) {
>+			if (items[i].getChecked() == true) {
>+				endType_ = items[i].getText();
>+				endHasSelectedItem = true;
>+			}
>+		}
>+		
>+		// Print error message if needed.
>+		if (!startHasSelectedItem && !endHasSelectedItem) {
>+			setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.NoSelection") );
>+			valid = false;
>+		} else if (!startHasSelectedItem) {
>+			setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.StartNotSelected") );
>+			valid = false;
>+		} else if (!endHasSelectedItem) {
>+			setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.EndNotSelected") );
>+			valid = false;
>+		}
>+		
>+		// Check if the same item is selected in both lists
>+		if (startHasSelectedItem && endHasSelectedItem) {
>+			if ( startType_.equalsIgnoreCase(endType_) ) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.SameSelected") );
>+				valid = false;
>+			}
>+		}
>+		
>+		// Check if the selected item is already in the list
>+		if (startHasSelectedItem && endHasSelectedItem) {
>+			Pair<Vector<String>,Vector<String>> pairs = getMatchPairs();
>+			Vector<String> startEvents = pairs.getFirst();
>+			Vector<String> endEvents = pairs.getSecond();
>+			
>+			boolean startAlreadyUsed = false;
>+			boolean endAlreadyUsed = false;
>+			boolean startAsEndAlreadyUsed = false;
>+			boolean endAsStartAlreadyUsed = false;
>+			
>+			if (startEvents.contains(startType_)) {
>+				startAlreadyUsed = true;
>+			}
>+			if (endEvents.contains(endType_)) {
>+				endAlreadyUsed = true;
>+			}
>+			if (startEvents.contains(endType_)) {
>+				endAsStartAlreadyUsed = true;
>+			}
>+			if (endEvents.contains(startType_)) {
>+				startAsEndAlreadyUsed = true;
>+			}
>+			
>+			if (startAlreadyUsed && endAlreadyUsed) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.AlreadyMatched") );
>+				valid = false;
>+			} else if (startAlreadyUsed) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.StartAlreadyMatched") );
>+				valid = false;
>+			} else if (endAlreadyUsed) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.EndAlreadyMatched") );
>+				valid = false;
>+			}
>+			
>+			if (startAsEndAlreadyUsed) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.StartAsEnd") );
>+				valid = false;
>+			}
>+			if (endAsStartAlreadyUsed) {
>+				setErrorMessage( Messages.getString("LatencyView.Dialogs.AddEvents.Errors.EndAsStart") );
>+				valid = false;
>+			}
>+		}
>+		
>+		return valid;
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/DeleteDialog.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/DeleteDialog.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/DeleteDialog.java	(revision 0)
>@@ -0,0 +1,146 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.dialogs;
>+
>+import org.eclipse.jface.dialogs.MessageDialog;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.Messages;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.layout.GridData;
>+import org.eclipse.swt.widgets.Button;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Event;
>+import org.eclipse.swt.widgets.Listener;
>+import org.eclipse.swt.widgets.Shell;
>+import org.eclipse.swt.widgets.TableItem;
>+
>+
>+/**
>+ * Remove dialog, lets the user remove start/end event pairs.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class DeleteDialog extends ListDialog {
>+
>+	/**
>+	 * Constructor.
>+	 * @param parentShell The parent shell.
>+	 * @param title The dialog's window title.
>+	 * @param message The dialog's window message.
>+	 */
>+	public DeleteDialog(Shell parentShell, String title, String message) {
>+		super(parentShell, title, message);
>+		
>+		// Set the table style
>+		style_ = SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL;
>+	}
>+
>+	/**
>+	 * Creates the buttons for the button bar.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected void createButtonsForButtonBar(Composite parent) {
>+		GridData gridData = new GridData();
>+		gridData.verticalAlignment = GridData.FILL;
>+		gridData.horizontalSpan = 1;
>+		gridData.grabExcessHorizontalSpace = true;
>+		gridData.grabExcessVerticalSpace = true;
>+		gridData.horizontalAlignment = SWT.RIGHT;
>+		
>+		parent.setLayoutData(gridData);
>+		
>+		// Create the "Delete" button
>+		Button deleteButton = createButton(parent, DELETE, Messages.getString("LatencyView.Dialogs.DeleteEvents.Buttons.Delete"), false);
>+		deleteButton.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				TableItem selectedItem = table_.getSelection()[0];
>+				if (selectedItem == null)
>+					return;
>+				
>+				int[] selectedIndices = table_.getSelectionIndices();
>+				
>+				String deletePairs = "";
>+				for (int i = 0; i < selectedIndices.length; i++) {
>+					int index = selectedIndices[i];
>+					deletePairs += "\t* " + eventStartTypes_.get(index) + " / " + eventEndTypes_.get(index);
>+					
>+					if (i < selectedIndices.length-1) {
>+						deletePairs += "\n";
>+					}
>+				}
>+				
>+				boolean confirmDeletion = MessageDialog.openQuestion(
>+						getShell(),
>+						Messages.getString("LatencyView.Dialogs.DeleteEvents.Confirm.Title"),
>+						Messages.getString("LatencyView.Dialogs.DeleteEvents.Confirm.Message") + "\n\n" + deletePairs);
>+				
>+				if (confirmDeletion) {
>+					// Remove the events starting from the end of the list, otherwise the TableItem elements will lose their
>+					// index from the table and may trigger an exception when removing an index that is no longer valid.
>+					for (int i = selectedIndices.length-1; i >= 0; i--) {
>+						int selectedIndex = selectedIndices[i];
>+						EventMatcher.getInstance().removeMatch(eventStartTypes_.get(selectedIndex), eventEndTypes_.get(selectedIndex));
>+						
>+						table_.remove(selectedIndex);
>+						
>+						// Update the list of events
>+						eventStartTypes_.remove(selectedIndex);
>+						eventEndTypes_.remove(selectedIndex);
>+					}
>+					
>+					// Save the events pairs in the settings file so it can be retrieved in the next session
>+					saveMatchPairs(eventStartTypes_, eventEndTypes_);
>+					
>+					table_.setItemCount( eventStartTypes_.size() );
>+					
>+					TableItem[] newItems = table_.getItems();
>+					table_.removeAll();
>+					for (int i = 0; i < newItems.length; i++) {
>+						TableItem item = new TableItem(table_, SWT.RIGHT);
>+						
>+						String max = "" + eventStartTypes_.size();
>+						String number = formatListNumber(i+1, max.length());
>+						
>+						String[] columns = {
>+								number,
>+								eventStartTypes_.get(i),
>+								eventEndTypes_.get(i)
>+						};
>+						
>+						item.setText(columns);
>+					}
>+					
>+					redrawGraphs_ = true;
>+				}
>+			}
>+		});
>+		
>+		// Create the "Close" button
>+		Button closeButton = createButton(parent, CANCEL, Messages.getString("LatencyView.Dialogs.AddEvents.Buttons.Close"), false);
>+		closeButton.addListener(SWT.Selection, new Listener() {
>+			@Override
>+			public void handleEvent(Event event) {
>+				// Remember the user's list
>+				saveMatchPairs(eventStartTypes_, eventEndTypes_);
>+				
>+				setReturnCode(CANCEL);
>+
>+				if (redrawGraphs_ == true)
>+					redrawGraphs();
>+				
>+				close();
>+			}
>+		});
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/ListDialog.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/ListDialog.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/dialogs/ListDialog.java	(revision 0)
>@@ -0,0 +1,233 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.dialogs;
>+
>+import java.util.Vector;
>+
>+import org.eclipse.jface.dialogs.MessageDialog;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.matcher.EventMatcher;
>+import org.eclipse.linuxtools.lttng.analysis.analyser.utilities.Pair;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.Messages;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.layout.GridData;
>+import org.eclipse.swt.layout.GridLayout;
>+import org.eclipse.swt.widgets.Button;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Control;
>+import org.eclipse.swt.widgets.Event;
>+import org.eclipse.swt.widgets.Listener;
>+import org.eclipse.swt.widgets.Shell;
>+import org.eclipse.swt.widgets.Table;
>+import org.eclipse.swt.widgets.TableColumn;
>+import org.eclipse.swt.widgets.TableItem;
>+
>+
>+/**
>+ * List dialog, shows the list of start/end event pairs.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class ListDialog extends AbstractDialog {
>+	
>+	/**
>+	 * The dialog's table.
>+	 */
>+	protected Table table_;
>+	
>+	/**
>+	 * Start event types.
>+	 */
>+	protected Vector<String> eventStartTypes_;
>+	/**
>+	 * End event types.
>+	 */
>+	protected Vector<String> eventEndTypes_;
>+	
>+	/**
>+	 * Table columns
>+	 */
>+	protected TableColumn[] columns_;
>+	
>+	/**
>+	 * Column names (header titles).
>+	 */
>+	protected static final String[] COLUMN_NAMES = {"#", Messages.getString("LatencyView.Dialogs.ListEvents.Columns.Trigger"), Messages.getString("LatencyView.Dialogs.ListEvents.Columns.End")};
>+	/**
>+	 * Column widths.
>+	 */
>+	protected static final int[] COLUMN_WIDTHS = {25, 250, 250};
>+	
>+	/**
>+	 * The table style.
>+	 */
>+	protected int style_;
>+	
>+
>+	/**
>+	 * Constructor.
>+	 * @param parentShell The parent shell.
>+	 * @param title The dialog's window title.
>+	 * @param message The dialog's window message.
>+	 */
>+	public ListDialog(Shell parentShell, String title, String message) {
>+		super(parentShell, title, message);
>+		
>+		// Set the table style
>+		style_ = SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL;
>+		
>+		// Get the list of start and end types from the EventMatcher
>+		Pair<Vector<String>,Vector<String>> pair = getMatchPairs();
>+		eventStartTypes_ = pair.getFirst();
>+		eventEndTypes_ = pair.getSecond();
>+	}
>+	
>+	/**
>+	 * Creates the table's column (i.e. the table header).
>+	 */
>+	protected void createColumns() {
>+		columns_ = new TableColumn[COLUMN_NAMES.length];
>+		for (int i = 0; i < COLUMN_NAMES.length; i++) {
>+			columns_[i] = new TableColumn(table_, SWT.LEFT);
>+			columns_[i].setText(COLUMN_NAMES[i]);
>+			columns_[i].setWidth(COLUMN_WIDTHS[i]);
>+		}
>+	}
>+	
>+	/**
>+	 * Creates the dialog area.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected Control createDialogArea(Composite parent) {
>+		GridLayout layout = new GridLayout(1, true);
>+		parent.setLayout(layout);
>+		
>+		GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
>+		table_ = new Table(parent, style_);
>+		table_.setLayoutData(layoutData);
>+		
>+		// Some cosmetic enhancements
>+		table_.setHeaderVisible(true);
>+		table_.setLinesVisible(true);
>+		
>+		createColumns();
>+		
>+		for (int i = 0; i < eventStartTypes_.size(); i++) {
>+			TableItem item = new TableItem(table_, SWT.RIGHT);
>+			
>+			String max = "" + eventStartTypes_.size();
>+			String number = formatListNumber(i+1, max.length());
>+			
>+			String[] columns = {
>+					number,
>+					eventStartTypes_.get(i),
>+					eventEndTypes_.get(i)
>+			};
>+			
>+			item.setText(columns);
>+		}
>+		
>+		return parent;
>+	}
>+
>+	/**
>+	 * Creates the buttons for the button bar.
>+	 * @param parent The parent.
>+	 */
>+	@Override
>+	protected void createButtonsForButtonBar(Composite parent) {
>+		GridData gridData = new GridData();
>+		gridData.verticalAlignment = GridData.FILL;
>+		gridData.horizontalSpan = 1;
>+		gridData.grabExcessHorizontalSpace = true;
>+		gridData.grabExcessVerticalSpace = true;
>+		gridData.horizontalAlignment = SWT.RIGHT;
>+		
>+		parent.setLayoutData(gridData);
>+		
>+		// Create the "Reset" button
>+		Button resetButton = createButton(parent, RESET, Messages.getString("LatencyView.Dialogs.ListEvents.Buttons.Reset"), false);
>+		resetButton.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				boolean confirmDeletion = MessageDialog.openQuestion(
>+						getShell(),
>+						Messages.getString("LatencyView.Dialogs.ListEvents.Confirm.Title"),
>+						Messages.getString("LatencyView.Dialogs.ListEvents.Confirm.Message"));
>+				
>+				if (confirmDeletion) {
>+					EventMatcher.getInstance().resetMatches();
>+					
>+					table_.removeAll();
>+					
>+					Vector<String> defaultStarts = new Vector<String>();
>+					Vector<String> defaultEnds = new Vector<String>();
>+					
>+					defaultStarts.add(EventMatcher.PAGE_FAULT_GET_USER_ENTRY); defaultEnds.add(EventMatcher.PAGE_FAULT_GET_USER_EXIT);
>+					defaultStarts.add(EventMatcher.TASKLET_LOW_ENTRY); defaultEnds.add(EventMatcher.TASKLET_LOW_EXIT);
>+					defaultStarts.add(EventMatcher.PAGE_FAULT_ENTRY); defaultEnds.add(EventMatcher.PAGE_FAULT_EXIT);
>+					defaultStarts.add(EventMatcher.SYSCALL_ENTRY); defaultEnds.add(EventMatcher.SYSCALL_EXIT);
>+					defaultStarts.add(EventMatcher.IRQ_ENTRY); defaultEnds.add(EventMatcher.IRQ_EXIT);
>+					defaultStarts.add(EventMatcher.READ); defaultEnds.add(EventMatcher.WRITE);
>+					defaultStarts.add(EventMatcher.OPEN); defaultEnds.add(EventMatcher.CLOSE);
>+					defaultStarts.add(EventMatcher.BUFFER_WAIT_START); defaultEnds.add(EventMatcher.BUFFER_WAIT_END);
>+					defaultStarts.add(EventMatcher.START_COMMIT); defaultEnds.add(EventMatcher.END_COMMIT);
>+					defaultStarts.add(EventMatcher.WAIT_ON_PAGE_START); defaultEnds.add(EventMatcher.WAIT_ON_PAGE_END);
>+
>+					saveMatchPairs(defaultStarts, defaultEnds);
>+					
>+					for (int i = 0; i < defaultStarts.size(); i++) {
>+						EventMatcher.getInstance().addMatch(defaultStarts.get(i), defaultEnds.get(i));
>+					}
>+					
>+
>+					// Get the list of start and end types from the EventMatcher
>+					Pair<Vector<String>,Vector<String>> pair = getMatchPairs();
>+					eventStartTypes_ = pair.getFirst();
>+					eventEndTypes_ = pair.getSecond();
>+					
>+					for (int i = 0; i < eventStartTypes_.size(); i++) {
>+						TableItem item = new TableItem(table_, SWT.RIGHT);
>+						
>+						String max = "" + eventStartTypes_.size();
>+						String number = formatListNumber(i+1, max.length());
>+						
>+						String[] columns = {
>+								number,
>+								eventStartTypes_.get(i),
>+								eventEndTypes_.get(i)
>+						};
>+						
>+						item.setText(columns);
>+					}
>+					
>+					table_.setItemCount(eventStartTypes_.size());
>+					
>+					redrawGraphs_ = true;
>+				}
>+			}
>+		});
>+		
>+		// Create the "Close" button
>+		Button closeButton = createButton(parent, CANCEL, Messages.getString("LatencyView.Dialogs.ListEvents.Buttons.Close"), false);
>+		closeButton.addListener(SWT.Selection, new Listener() {
>+			public void handleEvent(Event event) {
>+				setReturnCode(CANCEL);
>+				
>+				if (redrawGraphs_ == true)
>+					redrawGraphs();
>+				
>+				close();
>+			}
>+		});
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/GraphView.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/GraphView.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/GraphView.java	(revision 0)
>@@ -0,0 +1,74 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.GraphPaintListener;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.TimePointerListener;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.widgets.Composite;
>+
>+
>+/**
>+ * Graph view.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class GraphView extends AbstractView {
>+
>+	/**
>+	 * Constructor.
>+	 * @param parent The parent composite node.
>+	 * @param style The SWT style to use to render the view.
>+	 */
>+	public GraphView(Composite parent, int style) {
>+		super(parent, style);
>+		
>+		// Register the paint listener
>+		paintListener_ = new GraphPaintListener(this);
>+		addPaintListener(paintListener_);
>+		
>+		// Register the mouse click listener
>+		mouseListener_ = new TimePointerListener(this, (GraphPaintListener)paintListener_);
>+		addListener(SWT.MouseMove, mouseListener_); 
>+	}
>+
>+	@Override
>+	public void addPoint(int point) {
>+		if (Config.PRINT_GRAPH_VIEW_STATUS)
>+			System.out.println("GRAPH : ADDING 1 POINT");
>+	}
>+	
>+	@Override
>+	public void addPoints(ChartPoint[] points, int nbPoints) {
>+		if (Config.PRINT_GRAPH_VIEW_STATUS)
>+			System.out.println("GRAPH : ADDING " + nbPoints + " POINTS");
>+		paintListener_.addPoints(points, nbPoints);
>+	}
>+
>+	@Override
>+	public void clear() {
>+		xMin_ = 0L;
>+		xMax_ = 0L;
>+		
>+		yMin_ = 0L;
>+		yMax_ = 0L;
>+		
>+		paintListener_.clear();
>+	}
>+	
>+	@Override
>+	public void clearBackground() {
>+		paintListener_.clear();
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/handlers/ViewHandler.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/handlers/ViewHandler.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/handlers/ViewHandler.java	(revision 0)
>@@ -0,0 +1,33 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.handlers;
>+
>+
>+/**
>+ * View handler, catches the view requests for data.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public interface ViewHandler {
>+	
>+	/**
>+	 * Analyses the latency for all event types.
>+	 */
>+	public void analyseLatencyForAllEvents();
>+	
>+	/**
>+	 * Notifies the view handlers of the number of bars available.
>+	 * @param nbBars The number of bars available.
>+	 */
>+	public void notifyNumberOfBars(int nbBars);
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/HistogramView.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/HistogramView.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/HistogramView.java	(revision 0)
>@@ -0,0 +1,114 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.HistogramPaintListener;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.TooltipListener;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.listeners.ZoomListener;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.widgets.Composite;
>+
>+
>+/**
>+ * Histogram view.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class HistogramView extends AbstractView {
>+	
>+	/**
>+	 * Usable width for data plotting.
>+	 */
>+	protected int usableWidth_;
>+	
>+	/**
>+	 * Standard latencies table.
>+	 */
>+	protected double[] standardLatencies_;
>+	
>+
>+	/**
>+	 * Constructor.
>+	 * @param parent The parent composite node.
>+	 * @param style The SWT style to use to render the view.
>+	 */
>+	public HistogramView(Composite parent, int style) {
>+		super(parent, style);
>+		
>+		// Register the paint listener
>+		paintListener_ = new HistogramPaintListener(this);
>+		addPaintListener(paintListener_);
>+		
>+		// Register the zoom listener
>+		zoomListener_ = new ZoomListener(this);
>+		addListener(SWT.MouseWheel, zoomListener_);
>+		
>+		// Register the mouse click listener
>+		mouseListener_ = new TooltipListener(this, (HistogramPaintListener)paintListener_);
>+		addListener(SWT.MouseMove, mouseListener_); 
>+	}
>+
>+	@Override
>+	public void addPoint(int point) {
>+		if (Config.PRINT_HISTO_VIEW_STATUS)
>+			System.out.println("HISTOGRAM : ADDING 1 POINT");
>+	}
>+	
>+	@Override
>+	public void addPoints(ChartPoint[] points, int nbPoints) {
>+		if (Config.PRINT_HISTO_VIEW_STATUS)
>+			System.out.println("HISTOGRAM : ADDING " + nbPoints + " POINTS");
>+		paintListener_.addPoints(points, nbPoints);
>+	}
>+
>+	@Override
>+	public void clear() {
>+		xMin_ = 0L;
>+		xMax_ = 0L;
>+		
>+		yMin_ = 0L;
>+		yMax_ = 0L;
>+
>+		paintListener_.clear();
>+	}
>+	
>+	@Override
>+	public void clearBackground() {
>+		paintListener_.clear();
>+	}
>+	
>+	/**
>+	 * Returns the number of bars available.
>+	 * @return The number of bars available.
>+	 */
>+	public int getNumberOfBars() {
>+		usableWidth_ = getClientArea().width - 2*Config.GRAPH_PADDING;
>+		return usableWidth_ / Config.HISTOGRAM_BAR_WIDTH;
>+	}
>+	
>+	/**
>+	 * Notify the view handler of the number of bars available.
>+	 */
>+	public void notifyNumberOfBars() {
>+		viewHandler_.notifyNumberOfBars( getNumberOfBars() );
>+	}
>+	
>+	/**
>+	 * Sets the standard latencies table.
>+	 * @param standardLatencies The standard latencies table.
>+	 */
>+	public void setStandardLatencies(double[] standardLatencies) {
>+		standardLatencies_ = standardLatencies;
>+	}
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/LatencyView.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/LatencyView.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/LatencyView.java	(revision 0)
>@@ -0,0 +1,502 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+import org.eclipse.jface.action.Action;
>+import org.eclipse.jface.action.IMenuManager;
>+import org.eclipse.jface.action.IToolBarManager;
>+import org.eclipse.jface.action.Separator;
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.analysis.InterfaceMediator;
>+import org.eclipse.linuxtools.lttng.event.LttngEvent;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.dialogs.AddDialog;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.dialogs.DeleteDialog;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.dialogs.ListDialog;
>+import org.eclipse.linuxtools.tmf.event.TmfEvent;
>+import org.eclipse.linuxtools.tmf.event.TmfTimeRange;
>+import org.eclipse.linuxtools.tmf.event.TmfTimestamp;
>+import org.eclipse.linuxtools.tmf.experiment.TmfExperiment;
>+import org.eclipse.linuxtools.tmf.signal.TmfExperimentSelectedSignal;
>+import org.eclipse.linuxtools.tmf.signal.TmfRangeSynchSignal;
>+import org.eclipse.linuxtools.tmf.signal.TmfSignalHandler;
>+import org.eclipse.linuxtools.tmf.signal.TmfTimeSynchSignal;
>+import org.eclipse.linuxtools.tmf.trace.ITmfTrace;
>+import org.eclipse.linuxtools.tmf.trace.TmfContext;
>+import org.eclipse.linuxtools.tmf.ui.views.TmfView;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.events.ControlEvent;
>+import org.eclipse.swt.events.ControlListener;
>+import org.eclipse.swt.layout.FillLayout;
>+import org.eclipse.swt.widgets.Composite;
>+import org.eclipse.swt.widgets.Display;
>+import org.eclipse.ui.IActionBars;
>+import org.eclipse.ui.plugin.AbstractUIPlugin;
>+
>+
>+/**
>+ * TmfView displaying the latency views (i.e. the two latency charts).
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class LatencyView extends TmfView {
>+
>+	/**
>+	 * The view's unique ID.
>+	 */
>+ public static final String ID = "org.eclipse.linuxtools.lttng.ui.views.latency.LatencyView";
>+ 
>+ /**
>+ * A reference to the currently selected experiment.
>+ */
>+ protected static TmfExperiment<LttngEvent> experiment_ = null;
>+ 
>+ /**
>+ * Parent composite.
>+ */
>+ protected static Composite parent_;
>+ 
>+ /**
>+ * Graph view.
>+ */
>+ protected GraphView graphView_;
>+ /**
>+ * Histogram view.
>+ */
>+ protected HistogramView histogramView_;
>+ 
>+ /**
>+ * Action executed when the user wants to see the list of matching events.
>+ */
>+ protected Action listMatchingEvents_;
>+ /**
>+ * Action executed when the user wants to add matching events.
>+ */
>+ protected Action addMatchingEvents_;
>+ /**
>+ * Action executed when the user wants to delete matching events.
>+ */
>+ protected Action deleteMatchingEvents_;
>+ /**
>+ * Action executed when the user wants to increase the width of the histogram bars.
>+ */
>+ protected Action increaseBarWidth_;
>+ /**
>+ * Action executed when the user wants to decrease the width of the histogram bars.
>+ */
>+ protected Action decreaseBarWidth_;
>+ 
>+ /**
>+ * The current histogram window time range.
>+ */
>+ protected static TmfTimeRange timeRange_ = null;
>+ 
>+ /**
>+ * A reference to the last TmfRangeSynchSignal recorded.
>+ */
>+ protected static TmfRangeSynchSignal rangeSyncSignal_;
>+ /**
>+ * A reference to the last TmfExperimentSelectedSignal<TmfEvent> recorded.
>+ */
>+ protected TmfExperimentSelectedSignal<TmfEvent> experimentSelectedSignal_;
>+ 
>+ 
>+ 
>+ /**
>+ * Constructor.
>+ */
>+ public LatencyView() {
>+ 	super("LatencyView");
>+ }
>+ 
>+	/**
>+	 * Create the UI controls of this view.
>+	 * 
>+	 * @param parent The composite parent of this view.
>+	 */
>+	@Override
>+	public void createPartControl(Composite parent) {
>+		// Save the parent
>+		parent_ = parent;
>+		
>+		makeActions();
>+		contributeToActionBars();
>+		
>+		// Add a control listener to handle the view resize events (to redraw the canvas)
>+		parent_.addControlListener(new ControlListener() {
>+			@Override
>+			public void controlMoved(ControlEvent event) {
>+				resendSignalsIfNeeded();
>+			}
>+
>+			@Override
>+			public void controlResized(ControlEvent event) {
>+				resendSignalsIfNeeded();
>+			}
>+			
>+			/**
>+			 * Resend trace signals if the resize or the move forced the views
>+			 * to be cleared, so that after the view is resized/moved, the events
>+			 * from the trace start being plotted.
>+			 */
>+			protected void resendSignalsIfNeeded() {
>+				if (rangeSyncSignal_ != null) {
>+					synchToTimeRange(rangeSyncSignal_);
>+				} else if (experimentSelectedSignal_ != null) { 
>+					experimentSelected(experimentSelectedSignal_);
>+				} else {
>+					graphView_.clear();
>+					histogramView_.clear();
>+				}
>+			}
>+		});
>+		
>+		
>+		
>+		/////////////////////////////////////////////////////////////////////////////////////
>+		// Layout for the whole view, other elements will be in a child composite of this one 
>+		// Contains :
>+		// 		Composite layoutSelectionWindow
>+		//		Composite layoutTimesSpinner
>+		//		Composite layoutExperimentHistogram
>+		/////////////////////////////////////////////////////////////////////////////////////
>+		Composite layoutFullView = new Composite(parent_, SWT.FILL);
>+		FillLayout gridFullView = new FillLayout();
>+		gridFullView.marginHeight = 0;
>+		gridFullView.marginWidth = 0;
>+		layoutFullView.setLayout(gridFullView);
>+ 	
>+ 	// Create the graph views
>+ 	graphView_ = new GraphView(layoutFullView, SWT.DOUBLE_BUFFERED);
>+ 	graphView_.drawLabelEachNTicks(2);
>+ 	graphView_.setGraphTitle(Messages.getString("LatencyView.Graphs.Graph.Title"));
>+ 	graphView_.setXAxisLabel(Messages.getString("LatencyView.Graphs.Graph.XAxisLabel"), 40);
>+ 	graphView_.setYAxisLabel(Messages.getString("LatencyView.Graphs.Graph.YAxisLabel"));
>+ 	
>+ 	histogramView_ = new HistogramView(layoutFullView, SWT.DOUBLE_BUFFERED);
>+ 	histogramView_.setGraphTitle(Messages.getString("LatencyView.Graphs.Histogram.Title"));
>+ 	histogramView_.setXAxisLabel(Messages.getString("LatencyView.Graphs.Histogram.XAxisLabel"), 55);
>+ 	histogramView_.setYAxisLabel(Messages.getString("LatencyView.Graphs.Histogram.YAxisLabel"));
>+ 	
>+ 	// Register the graph views to the InterfaceMediator
>+ 	InterfaceMediator.getInstance().registerGraphView(graphView_);
>+ 	InterfaceMediator.getInstance().registerHistogramView(histogramView_);
>+	}
>+	
>+ @Override
>+	public String toString() {
>+ 	return "[LatencyView]";
>+ }
>+ 
>+ /**
>+ * Returns the currently selected experiment.
>+ * @return The currently selected experiment.
>+ */
>+ public static TmfExperiment<LttngEvent> getExperiment() {
>+ 	return (TmfExperiment<LttngEvent>) experiment_;
>+ }
>+ 
>+
>+ // ------------------------------------------------------------------------
>+ // Signal handlers
>+	// ------------------------------------------------------------------------
>+ 
>+	@SuppressWarnings("unchecked")
>+ @TmfSignalHandler
>+ public void experimentSelected(TmfExperimentSelectedSignal<TmfEvent> signal) {
>+		experimentSelectedSignal_ = signal;
>+		
>+		// Clear the views
>+		graphView_.clear();
>+		histogramView_.clear();
>+		
>+ 	histogramView_.notifyNumberOfBars();
>+ 	
>+		if (parent_ != null) {
>+	 // Update the trace reference
>+			experiment_ = (TmfExperiment<LttngEvent>) experimentSelectedSignal_.getExperiment();
>+			
>+			sendAnalysisRequest();
>+		}
>+ }
>+	
>+	/**
>+	 * Ask the analyser to compute the latencies for the current experiment.
>+	 */
>+	public static void sendAnalysisRequest() {
>+		if (parent_ != null) {
>+			Display display = parent_.getDisplay();
>+			display.asyncExec(new Runnable() {
>+				public void run() {
>+					new Thread() {
>+						public void run() {
>+							try {
>+								TmfTimestamp startTime = getExperimentTimeRange().getStartTime();
>+								TmfTimestamp endTime = new TmfTimestamp(startTime.getValue() + org.eclipse.linuxtools.lttng.ui.views.histogram.HistogramView.getDEFAULT_WINDOW_SIZE());
>+								timeRange_ = new TmfTimeRange(startTime, endTime);
>+								
>+						 InterfaceMediator.getInstance().analyseLatencyForAllEvents();
>+							} catch (NullPointerException e) {
>+								// Thrown when the user has not selected an experiment yet but reset the latency pairs to 
>+								// default in the dialog.
>+							}
>+						}
>+					}.start();
>+				}
>+			});
>+		}
>+	}
>+
>+	/**
>+	 * Called when the LatencyView is closed: disposes of the canvas and 
>+	 * unregisters them from the InterfaceMediator.
>+	 */
>+	@Override
>+	public void dispose() {
>+		graphView_.dispose();
>+		histogramView_.dispose();
>+		
>+		InterfaceMediator.getInstance().unregisterViews();
>+		
>+		super.dispose();
>+	}
>+	
>+	
>+	
>+	
>+	
>+	/**
>+ * Method called when synchonization is active and that the user select an event.
>+ * We update the current event timeTextGroup and move the selected window if needed.
>+ * 
>+ * @param signal Signal received from the framework. Contain the event.
>+ */
>+ @TmfSignalHandler
>+ public void currentTimeUpdated(TmfTimeSynchSignal signal) {
>+ 	
>+ }
>+ 
>+ @TmfSignalHandler
>+	public void synchToTimeRange(TmfRangeSynchSignal signal) {
>+ 	rangeSyncSignal_ = signal;
>+ 	if (rangeSyncSignal_ != null && rangeSyncSignal_.getSource() != this) {
>+ 		// Erase the graph views
>+ 		graphView_.clear();
>+ 		histogramView_.clear();
>+ 		
>+ 		TmfTimestamp startTime = rangeSyncSignal_.getCurrentRange().getStartTime();
>+ 		TmfTimestamp endTime = rangeSyncSignal_.getCurrentRange().getEndTime();
>+ 		timeRange_ = new TmfTimeRange(startTime, endTime);
>+ 		
>+ 		InterfaceMediator.getInstance().analyseLatencyForAllEvents();
>+ 	}
>+	}
>+ 
>+ 
>+ 
>+ 
>+ 
>+ /**
>+ * Fills the local pull down menu.
>+ * @param manager The menu manager.
>+ */
>+ private void fillLocalPullDown(IMenuManager manager) {
>+ 	manager.add(new Separator());
>+ 	manager.add(increaseBarWidth_);
>+ 	manager.add(decreaseBarWidth_);
>+ 	manager.add(new Separator());
>+ 	manager.add(listMatchingEvents_);
>+ 	manager.add(addMatchingEvents_);
>+ 	manager.add(deleteMatchingEvents_);
>+ 	manager.add(new Separator());
>+ }
>+ 
>+ /**
>+ * Fills the local toolbar.
>+ * @param manager The toolbar manager
>+ */
>+ private void fillLocalToolBar(IToolBarManager manager) {
>+ 	manager.add(new Separator());
>+ 	manager.add(increaseBarWidth_);
>+ 	manager.add(decreaseBarWidth_);
>+ 	manager.add(new Separator());
>+ 	manager.add(listMatchingEvents_);
>+ 	manager.add(addMatchingEvents_);
>+ 	manager.add(deleteMatchingEvents_);
>+ 	manager.add(new Separator());
>+ }
>+ 
>+ /**
>+ * Creates the actions required by the dialog events.
>+ */
>+ private void makeActions() {
>+ 	// Increase the histogram bar width
>+ 	increaseBarWidth_ = new Action() {
>+ 		public void run() {
>+ 			Config.HISTOGRAM_BAR_WIDTH += 5;
>+ 			if (Config.HISTOGRAM_BAR_WIDTH > 300)
>+ 				Config.HISTOGRAM_BAR_WIDTH = 300;
>+ 			histogramView_.notifyNumberOfBars();
>+ 			sendAnalysisRequest();
>+ 		}
>+ 	};
>+ 	String tooltipText = Messages.getString("LatencyView.Action.IncreaseBarWidth.Tooltip");
>+ 	increaseBarWidth_.setText(tooltipText);
>+ 	increaseBarWidth_.setToolTipText(tooltipText);
>+ 	increaseBarWidth_.setImageDescriptor(
>+ 			AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/increasebar_button.gif"));
>+ 	
>+ 	
>+
>+ 	
>+
>+ 	// Decrease the histogram bar width
>+ 	decreaseBarWidth_ = new Action() {
>+ 		public void run() {
>+ 			Config.HISTOGRAM_BAR_WIDTH -= 5;
>+ 			if (Config.HISTOGRAM_BAR_WIDTH < 5)
>+ 				Config.HISTOGRAM_BAR_WIDTH = 5;
>+ 			histogramView_.notifyNumberOfBars();
>+ 			sendAnalysisRequest();
>+ 		}
>+ 	};
>+ 	tooltipText = Messages.getString("LatencyView.Action.DecreaseBarWidth.Tooltip");
>+ 	decreaseBarWidth_.setText(tooltipText);
>+ 	decreaseBarWidth_.setToolTipText(tooltipText);
>+ 	decreaseBarWidth_.setImageDescriptor(
>+ 			AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/decreasebar_button.gif"));
>+ 	
>+ 	
>+
>+ 	
>+ 	// List matching events dialog
>+ 	listMatchingEvents_ = new Action() {
>+ 		public void run() {
>+ 			ListDialog listDialog = new ListDialog(
>+ 					parent_.getShell(),
>+ 					Messages.getString("LatencyView.Dialogs.ListEvents.Title"),
>+ 					Messages.getString("LatencyView.Dialogs.ListEvents.Message") );
>+ 			listDialog.create();
>+ 			listDialog.open();
>+ 		}
>+ 	};
>+ 	tooltipText = Messages.getString("LatencyView.Action.ListEvents.Tooltip");
>+ 	listMatchingEvents_.setText(tooltipText);
>+ 	listMatchingEvents_.setToolTipText(tooltipText);
>+ 	listMatchingEvents_.setImageDescriptor(
>+ 			AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/events_view.gif"));
>+ 	
>+ 	
>+
>+ 	// Add matching events dialog
>+ 	addMatchingEvents_ = new Action() {
>+ 		public void run() {
>+ 			AddDialog addDialog = new AddDialog(
>+ 					parent_.getShell(),
>+ 					Messages.getString("LatencyView.Dialogs.AddEvents.Title"),
>+ 					Messages.getString("LatencyView.Dialogs.AddEvents.Message") );
>+ 			addDialog.create();
>+ 			addDialog.open();
>+ 		}
>+ 	};
>+ 	tooltipText = Messages.getString("LatencyView.Action.AddEvents.Tooltip");
>+ 	addMatchingEvents_.setText(tooltipText);
>+ 	addMatchingEvents_.setToolTipText(tooltipText);
>+ 	addMatchingEvents_.setImageDescriptor(
>+ 			AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/add_button.gif"));
>+ 	
>+ 	
>+
>+ 	// Remove matching events dialog
>+ 	deleteMatchingEvents_ = new Action() {
>+ 		public void run() {
>+ 			DeleteDialog deleteDialog = new DeleteDialog(
>+ 					parent_.getShell(),
>+ 					Messages.getString("LatencyView.Dialogs.DeleteEvents.Title"),
>+ 					Messages.getString("LatencyView.Dialogs.DeleteEvents.Message") );
>+ 			deleteDialog.create();
>+ 			deleteDialog.open();
>+ 		}
>+ 	};
>+ 	tooltipText = Messages.getString("LatencyView.Action.DeleteEvents.Tooltip");
>+ 	deleteMatchingEvents_.setText(tooltipText);
>+ 	deleteMatchingEvents_.setToolTipText(tooltipText);
>+ 	deleteMatchingEvents_.setImageDescriptor(
>+ 			AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/delete_button.gif"));
>+ }
>+ 
>+ /**
>+ * Build the toolbar and menu by adding action buttons for dialogs.
>+ */
>+ private void contributeToActionBars() {
>+ 	IActionBars bars = getViewSite().getActionBars();
>+ 	fillLocalPullDown(bars.getMenuManager());
>+ 	fillLocalToolBar(bars.getToolBarManager());
>+ }
>+ 
>+ 
>+ 
>+ 
>+ 
>+ 
>+ 
>+ 
>+ /**
>+ * Before completing its indexing, the experiment doesn't know start/end time. However, LTTng individual traces have this 
>+ * knowledge so we should ask them directly.
>+ * @return The experiment's time range.
>+ */
>+ public static TmfTimeRange getExperimentTimeRange() {
>+		TmfTimestamp startTime = TmfTimestamp.BigCrunch;
>+		TmfTimestamp endTime = TmfTimestamp.BigBang;
>+		
>+		if (rangeSyncSignal_ != null) {
>+			startTime = rangeSyncSignal_.getCurrentRange().getStartTime();
>+ 		endTime = rangeSyncSignal_.getCurrentRange().getEndTime();
>+ 		timeRange_ = new TmfTimeRange(startTime, endTime);
>+		} else if (experiment_ != null) {
>+			for (ITmfTrace trace : experiment_.getTraces()) {
>+				TmfContext context = trace.seekLocation(null);
>+				context.setRank(0);
>+				TmfEvent event = trace.getNextEvent(context);
>+				
>+				TmfTimestamp traceStartTime = event.getTimestamp();
>+				if (traceStartTime.compareTo(startTime, true) < 0)
>+					startTime = traceStartTime;
>+				
>+				TmfTimestamp traceEndTime = trace.getEndTime();
>+				if (traceEndTime.compareTo(endTime, true) > 0)
>+					endTime = traceEndTime;
>+	 	}
>+		}
>+		
>+ return new TmfTimeRange(startTime, endTime);
>+ }
>+ 
>+ /**
>+ * Returns the current histogram window time range.
>+ * @return The current histogram window time range.
>+ */
>+ public static TmfTimeRange getTimeRange() {
>+ 	return timeRange_;
>+ }
>+
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractMouseListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractMouseListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractMouseListener.java	(revision 0)
>@@ -0,0 +1,55 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.widgets.Event;
>+import org.eclipse.swt.widgets.Listener;
>+
>+
>+/**
>+ * AbstractMouseListener, base class for the canvas mouse listener.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public abstract class AbstractMouseListener implements Listener {
>+
>+	/**
>+	 * Mouse x-coordinate.
>+	 */
>+	protected long mouseX_;
>+	/**
>+	 * Mouse y-coordinate.
>+	 */
>+	protected long mouseY_;
>+	
>+	
>+	/**
>+	 * Handles the event.
>+	 */
>+	public void handleEvent(Event event) {
>+		switch (event.type) {
>+			case SWT.MouseMove:
>+				mouseX_ = event.x;
>+				mouseY_ = event.y;
>+				
>+				display();
>+				
>+				break;
>+		}
>+	}
>+	
>+	/**
>+	 * Tooltip display callback.
>+	 */
>+	protected abstract void display();
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractPaintListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractPaintListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/AbstractPaintListener.java	(revision 0)
>@@ -0,0 +1,649 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import java.util.Collections;
>+import java.util.Vector;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.events.PaintEvent;
>+import org.eclipse.swt.events.PaintListener;
>+import org.eclipse.swt.graphics.Color;
>+import org.eclipse.swt.graphics.Font;
>+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.Display;
>+
>+
>+/**
>+ * Abstract paint listener. Draws the graphs on the view canvas.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public abstract class AbstractPaintListener implements PaintListener {
>+	
>+	/**
>+	 * A reference to the listener's view.
>+	 */
>+	protected AbstractView view_;
>+	
>+	/**
>+	 * Graph title
>+	 */
>+	protected String graphTitle_;
>+
>+	/**
>+	 * X-axis label.
>+	 */
>+	protected String xAxisLabel_;
>+	/**
>+	 * Y-axis label.
>+	 */
>+	protected String yAxisLabel_;
>+	
>+	/**
>+	 * Horizontal offset for the x-axis label.
>+	 */
>+	protected int xAxisLabelOffset_;
>+	
>+	/**
>+	 * Vertical offset for the horizontal axis offset.
>+	 */
>+	protected int horizontalAxisYOffset_ = 20;
>+
>+	/**
>+	 * Graph padding.
>+	 */
>+	protected int padding_ = Config.GRAPH_PADDING;
>+	
>+	/**
>+	 * Graph client area.
>+	 */
>+	protected Rectangle clientArea_ = new Rectangle(0, 0, 1, 1);
>+	
>+	/**
>+	 * Foreground color.
>+	 */
>+	protected Color foregroundColor_;
>+	/**
>+	 * Background color.
>+	 */
>+	protected Color backgroundColor_;
>+	/**
>+	 * Data plotting color.
>+	 */
>+	protected Color dataColor_;
>+	/**
>+	 * Axis label color.
>+	 */
>+	protected Color labelColor_;
>+	/**
>+	 * Text color.
>+	 */
>+	protected Color textColor_;
>+	/**
>+	 * Red.
>+	 */
>+	protected Color redColor_;
>+	/**
>+	 * White.
>+	 */
>+	protected Color whiteColor_;
>+	
>+	/**
>+	 * Original canvas font.
>+	 */
>+	protected Font originalFont_;
>+	/**
>+	 * Font for the title of the graph.
>+	 */
>+	protected Font titleFont_;
>+	/**
>+	 * Font for the values on the horizontal and vertical axis.
>+	 */
>+	protected Font valuesFont_;
>+	/**
>+	 * Font for the horizontal and vertical labels.
>+	 */
>+	protected Font labelFont_;
>+	
>+	/**
>+	 * Horizontal offset for the axis arrow.
>+	 */
>+	protected final int ARROW_DELTA_X = 10;
>+	/**
>+	 * Vertical offset for the axis arrow.
>+	 */
>+	protected final int ARROW_DELTA_Y = 4;
>+	
>+	/**
>+	 * Max horizontal distance between ticks.
>+	 */
>+	protected final int MAX_WIDTH_BETWEEN_TICKS = 40;
>+	/**
>+	 * Max vertical distance between ticks.
>+	 */
>+	protected final int MAX_HEIGHT_BETWEEN_TICKS = 30;
>+	/**
>+	 * Max characters that can be displayed on the vertical axis.
>+	 */
>+	protected final int MAX_CHAR_VERTICAL_DISPLAY = 5;
>+	
>+	/**
>+	 * Draw label each "drawLabelEachNTicks_" ticks.
>+	 */
>+	protected int drawLabelEachNTicks_ = 1;
>+	
>+	/**
>+	 * Image drawn on the canvas.
>+	 */
>+	protected Image image_;
>+	/**
>+	 * Paint canvas, where the values are plotted.
>+	 */
>+	protected GC axisImage_;
>+	
>+	/**
>+	 * Is the paint listener initialized ?
>+	 */
>+	protected boolean initialised_ = false;
>+	/**
>+	 * Does the listener need to be redrawn ?
>+	 */
>+	protected boolean redraw_ = true;
>+	
>+	/**
>+	 * Draw area.
>+	 */
>+	protected Rectangle drawArea_;
>+	
>+	/**
>+	 * Left padding (in pixels).
>+	 */
>+	protected int paddingLeft_ = 10;
>+	/**
>+	 * Right padding (in pixels).
>+	 */
>+	protected int paddingRight_ = 10;
>+	/**
>+	 * Top padding (in pixels).
>+	 */
>+	protected int paddingTop_ = 10;
>+	/**
>+	 * Bottom padding (in pixels).
>+	 */
>+	protected int paddingBottom_ = 10;
>+	
>+	/**
>+	 * Vertical axis offset (in pixels).
>+	 */
>+	protected int verticalAxisOffset_ = 20;
>+	
>+	/**
>+	 * Vertical axis factor for values (10^delta).
>+	 * When values larger than MAX_CHAR_VERTICAL_DISPLAY.
>+	 */
>+	protected int delta = 0;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the listener's view.
>+	 */
>+	public AbstractPaintListener(AbstractView view) {
>+		view_ = view;
>+	}
>+	
>+	@Override
>+	public void paintControl(PaintEvent e) {
>+		clientArea_ = view_.getClientArea();
>+		
>+		foregroundColor_ = e.gc.getForeground();
>+		backgroundColor_ = e.gc.getBackground();
>+		dataColor_ = e.gc.getDevice().getSystemColor(SWT.COLOR_RED);
>+		labelColor_ = e.gc.getDevice().getSystemColor(SWT.COLOR_BLACK);
>+		textColor_ = e.gc.getDevice().getSystemColor(SWT.COLOR_DARK_GRAY);
>+		redColor_ = e.gc.getDevice().getSystemColor(SWT.COLOR_RED);
>+		whiteColor_ = e.gc.getDevice().getSystemColor(SWT.COLOR_WHITE);
>+		
>+		originalFont_ = e.gc.getFont();
>+		titleFont_ = new Font(e.display, "Arial", 10, SWT.BOLD);
>+		valuesFont_ = new Font(e.display, "Arial", 7, SWT.NORMAL);
>+		labelFont_ = new Font(e.display, "Arial", 8, SWT.NORMAL);
>+
>+
>+		if (!initialised_) {
>+			image_ = new Image(Display.getDefault(), view_.getBounds());
>+			
>+			axisImage_ = new GC(image_);
>+			
>+			axisImage_.setForeground(foregroundColor_);
>+			axisImage_.setBackground(backgroundColor_);
>+			axisImage_.fillRectangle(image_.getBounds());
>+			paintBackground();
>+			
>+			initialised_ = true;
>+		}
>+		
>+		paintGraphTitle();
>+		paintHorizontalAxis();
>+		paintVerticalAxis();
>+		postAddDraw();
>+
>+		e.gc.drawImage(image_, 0, 0);
>+		redraw_ = false;
>+	}
>+	
>+	/**
>+	 * Paints the title of the graph.
>+	 */
>+	public void paintGraphTitle() {
>+		if (graphTitle_ != null) {
>+			axisImage_.setFont(titleFont_);
>+			axisImage_.setForeground(labelColor_);
>+			axisImage_.setBackground(backgroundColor_);
>+
>+			int zoomFactor = view_.getZoomFactor() / view_.getZoomIncrement() + 1;
>+			int labelWidth = axisImage_.stringExtent(graphTitle_).x;
>+			// Draws the zoom factor in the title only if there is one
>+			if (view_.getZoomFactor() > 1)
>+				axisImage_.drawText(graphTitle_+ " (" + zoomFactor + "x)", (view_.getBounds().width-padding_ - labelWidth)/2, 0);
>+			else
>+				axisImage_.drawText(graphTitle_, (view_.getBounds().width-padding_ - labelWidth)/2, 0);
>+		}
>+	}
>+	
>+	/**
>+	 * Paints the background of the draw area.
>+	 */
>+	public void paintBackground() {
>+		axisImage_.setBackground(whiteColor_);
>+		
>+		Rectangle rectangle = image_.getBounds();
>+		axisImage_.fillRectangle(padding_+verticalAxisOffset_, padding_+paddingTop_, rectangle.width-2*padding_-20, rectangle.height-2*padding_-paddingTop_-10);
>+	}
>+	
>+	/**
>+	 * Paints the horizontal axis.
>+	 */
>+	public void paintHorizontalAxis() {
>+		axisImage_.setForeground(foregroundColor_);
>+		
>+		int y = clientArea_.height - 2*padding_;
>+		
>+		axisImage_.drawLine( clientArea_.x+padding_+verticalAxisOffset_, 
>+				 y, 
>+				 clientArea_.width-padding_, 
>+				 y );
>+
>+		paintHorizontalArrow(clientArea_.width-padding_, y);
>+		// Draw the axis graphic details only if there are some data points (i.e. do not draw the axis graphic details
>+		// if the window timerange is so small that no latency can be computed, or if there are no matching events in
>+		// the timerange (for example, when an experiment has many traces with a large time gap between the logged events sets).
>+		if (view_.getXMin() != Long.MAX_VALUE && view_.getXMax() != Long.MIN_VALUE && view_.getXMin() != view_.getXMax()) {
>+			paintHorizontalTicks(y);
>+			paintHorizontalAxisValues(y+30);
>+		}
>+		paintHorizontalAxisLabel(y+5);
>+	}
>+	
>+	/**
>+	 * Paints the vertical axis.
>+	 */
>+	public void paintVerticalAxis() {
>+		axisImage_.setForeground(foregroundColor_);
>+		
>+		int x = clientArea_.x + padding_ + verticalAxisOffset_;
>+		
>+		axisImage_.drawLine( x, 
>+				 clientArea_.y + padding_, 
>+				 x, 
>+				 clientArea_.height - 2*padding_ );
>+		
>+		paintVerticalArrow(x, clientArea_.y + padding_);
>+		// Draw the axis graphic details only if there are some data points (i.e. do not draw the axis graphic details
>+		// if the window timerange is so small that no latency can be computed, or if there are no matching events in
>+		// the timerange (for example, when an experiment has many traces with a large time gap between the logged events sets).
>+		if (view_.getXMin() != Long.MAX_VALUE && view_.getXMax() != Long.MIN_VALUE && view_.getXMin() != view_.getXMax()) {
>+			//paintVerticalTicks(x);
>+			paintVerticalAxisValues(x);
>+		}
>+		paintVerticalAxisLabel(x);
>+	}
>+	
>+	/**
>+	 * Paints the arrow on the horizontal axis.
>+	 * @param x The x-coordinate of the point where the arrow points.
>+	 * @param y The y-coordinate of the point where the arrow points.
>+	 */
>+	public void paintHorizontalArrow(int x, int y) {
>+		// Arrow top line
>+		axisImage_.drawLine(x-ARROW_DELTA_X, y-ARROW_DELTA_Y, x, y);
>+		// Arrow bottom line
>+		axisImage_.drawLine(x-ARROW_DELTA_X, y+ARROW_DELTA_Y, x, y );
>+	}
>+
>+	/**
>+	 * Paints the arrow on the vertical axis.
>+	 * @param x The x-coordinate of the point where the arrow points.
>+	 * @param y The y-coordinate of the point where the arrow points.
>+	 */
>+	public void paintVerticalArrow(int x, int y) {
>+		// Arrow left line
>+		axisImage_.drawLine(x-ARROW_DELTA_Y, y+ARROW_DELTA_X, x, y);
>+		// Arrow right line
>+		axisImage_.drawLine(x+ARROW_DELTA_Y, y+ARROW_DELTA_X, x, y);
>+	}
>+	
>+	/**
>+	 * Paints the horizontal ticks.
>+	 * @param y The y coordinate where to draw the axis.
>+	 */
>+	public void paintHorizontalTicks(int y) {
>+		long xMin = view_.getXMin();
>+		long xMax = view_.getXMax();
>+		
>+		if (xMin != 0L && xMax != 0L) {
>+			int nbTicks = (view_.getBounds().width - 2*padding_ - ARROW_DELTA_X - verticalAxisOffset_) / MAX_WIDTH_BETWEEN_TICKS - 1;
>+			
>+			for (int i = 0; i <= nbTicks+1; i++) {
>+				int x = i*MAX_WIDTH_BETWEEN_TICKS + padding_ + verticalAxisOffset_;
>+				axisImage_.drawLine(x, y, x, y+3);
>+			}
>+		}
>+	}
>+	
>+	/**
>+	 * Paints the horizontal axis values.
>+	 * @param y The y coordinate where to draw the axis.
>+	 */
>+	public void paintHorizontalAxisValues(int y) {
>+		long xMin = view_.getXMin();
>+		long xMax = view_.getXMax();
>+		
>+		if (xMin != 0L && xMax != 0L) {
>+			axisImage_.setForeground(textColor_);
>+			axisImage_.setBackground(backgroundColor_);
>+			
>+			int nbTicks = (view_.getBounds().width - 2*padding_ - ARROW_DELTA_X - verticalAxisOffset_) / MAX_WIDTH_BETWEEN_TICKS;
>+			//System.out.println("nbTicks = " + nbTicks);
>+			
>+			for (int i = 0; i < nbTicks; i++) {
>+				if (i % drawLabelEachNTicks_ == 0) {
>+					int x = i*MAX_WIDTH_BETWEEN_TICKS + padding_ + verticalAxisOffset_;
>+					
>+					double step = (double)(xMax-xMin) / (double)nbTicks;
>+					long currentValue = (long) (xMin + i*step);
>+					String currentLabel = formatStringForHorizontalAxis(currentValue);
>+					
>+					axisImage_.setFont(valuesFont_);
>+					axisImage_.drawText(currentLabel, x, y-24);
>+				}
>+			}
>+		}
>+	}
>+	
>+	/**
>+	 * Paints the horizontal axis label.
>+	 * @param y The y-coordinate where to draw the label.
>+	 */
>+	public void paintHorizontalAxisLabel(int y) {
>+		if (xAxisLabel_ != null) {
>+			axisImage_.setFont(labelFont_);
>+			axisImage_.setForeground(labelColor_);
>+			
>+			int labelWidth = axisImage_.stringExtent(xAxisLabel_).x;
>+			
>+			axisImage_.drawText(xAxisLabel_, view_.getBounds().width-padding_-labelWidth, y);
>+		}
>+	}
>+
>+	/**
>+	 * Paints the vertical axis ticks.
>+	 * @param x The x-coordinate where to draw the ticks.
>+	 * @deprecated The vertical ticks are now drawn at the same time as the vertical axis values.
>+	 */
>+	public void paintVerticalTicks(int x) {
>+		long xMin = view_.getXMin();
>+		long xMax = view_.getXMax();
>+		
>+		if (xMin != 0L && xMax != 0L) {
>+			int nbTicks = (view_.getBounds().height-2*padding_-paddingTop_) / MAX_HEIGHT_BETWEEN_TICKS + 1;
>+			
>+			for (int i = 0; i <= nbTicks+1; i++) {
>+				int y = view_.getBounds().height - 2*padding_ - paddingTop_ - i*MAX_HEIGHT_BETWEEN_TICKS;
>+				axisImage_.drawLine(x-3, y+paddingTop_, x, y+paddingTop_);
>+			}
>+		}
>+	}
>+	
>+	/**
>+	 * Paints the vertical axis values.
>+	 * @param x The x-coordinate where to draw the values.
>+	 */
>+	public void paintVerticalAxisValues(int x) {
>+		long xMin = view_.getXMin();
>+		long xMax = view_.getXMax();
>+		int zoomFactor = 1;
>+		
>+		zoomFactor = view_.getZoomFactor();
>+
>+		if (xMin != 0L && xMax != 0L) {
>+			axisImage_.setForeground(textColor_);
>+			axisImage_.setBackground(backgroundColor_);
>+			
>+			long yMin = view_.getYMin();
>+			// Apply the zoom to the max value of the graph for the next calculations
>+			long yMax = view_.getYMax() / zoomFactor;
>+							
>+			int nbTicks = (view_.getBounds().height-2*padding_-paddingTop_) / MAX_HEIGHT_BETWEEN_TICKS + 1;
>+			
>+			Vector<Integer> values = new Vector<Integer>();
>+			boolean multipleSameValues = true;
>+			while (multipleSameValues) {
>+				double valueStep = (double)(yMax-yMin) / (double)(nbTicks-1);
>+				
>+				for (int i = 0; i < nbTicks; i++) {
>+					double currentValue = (double) (yMin + i*valueStep)/(Math.pow(10, delta));
>+					
>+					values.add((int) currentValue);
>+				}
>+				
>+				Collections.sort(values);
>+				boolean hasRepetition = false;
>+				for (int i = 1; i < values.size(); i++) {
>+					if (values.get(i) == values.get(i-1)) {
>+						hasRepetition = true;
>+					}
>+				}
>+				
>+				if (hasRepetition) {
>+					nbTicks--;
>+					values.clear();
>+				} else {
>+					multipleSameValues = false;
>+
>+					// Draw rectangle over the old values
>+					int height = view_.getBounds().height-4*padding_-paddingTop_;
>+					axisImage_.fillRectangle(0, padding_+paddingTop_, padding_+verticalAxisOffset_, height);
>+
>+					double pixelStep = (getHeight() + 2.0*padding_ + paddingTop_ + 1)/*(view_.getBounds().height - 2*padding_ - 1*paddingTop_)*/ / values.size();
>+					
>+					for (int i = 0; i < values.size(); i++) {
>+						double currentValue = values.get(i);
>+						
>+						int y = (int) (view_.getBounds().height - 2*padding_ - i*pixelStep);
>+						String currentLabel = formatStringForVerticalAxis((long) currentValue);
>+						
>+						axisImage_.setFont(valuesFont_);
>+						
>+						Point textDimensions = axisImage_.stringExtent(currentLabel);
>+						axisImage_.drawText(currentLabel, x-textDimensions.x-5, y-textDimensions.y/2);
>+						axisImage_.drawLine(x-3, y, x, y);
>+					}
>+				}
>+			}
>+		}
>+	}
>+	
>+	/**
>+	 * Paints the vertical axis label.
>+	 * @param x The x-coordinate where to draw the label.
>+	 */
>+	public void paintVerticalAxisLabel(int x) {
>+		if (yAxisLabel_ != null) {
>+			axisImage_.setFont(labelFont_);
>+			axisImage_.setForeground(labelColor_);
>+			axisImage_.setBackground(backgroundColor_);
>+			
>+			if (delta >= 1)
>+				axisImage_.drawText(yAxisLabel_ + " (x10^" + delta + ")", x+10, paddingTop_-5);
>+			else 
>+				axisImage_.drawText(yAxisLabel_, x+10, paddingTop_-5);
>+		}
>+	}
>+	
>+	/**
>+	 * Adds points to the graph and draws them to the canvas.
>+	 * @param points The buffer of points to draw.
>+	 * @param nbPoints The number of points in the buffer.
>+	 */
>+	public abstract void addPoints(ChartPoint[] points, int nbPoints);
>+
>+	/**
>+	 * Draw horizontal label each "nbTicks" ticks.
>+	 * @param nbTicks The draw interval.
>+	 */
>+	public void drawLabelEachNTicks(int nbTicks) {
>+		drawLabelEachNTicks_ = nbTicks;
>+	}
>+
>+	/**
>+	 * Sets the title of the graph.
>+	 * @param graphTitle The title of the graph.
>+	 */
>+	public void setGraphTitle(String graphTitle) {
>+		graphTitle_ = graphTitle;
>+	}
>+
>+	/**
>+	 * Sets the horizontal axis label.
>+	 * @param xAxisLabel The horizontal axis label.
>+	 * @param offset The horizontal axis draw offset (in pixels).
>+	 */
>+	public void setXAxisLabel(String xAxisLabel, int offset) {
>+		xAxisLabel_ = xAxisLabel;
>+		xAxisLabelOffset_ = offset;
>+	}
>+
>+	/**
>+	 * Sets the vertical axis label.
>+	 * @param yAxisLabel The vertical axis label.
>+	 */
>+	public void setYAxisLabel(String yAxisLabel) {
>+		yAxisLabel_ = yAxisLabel;
>+	}
>+	
>+	/**
>+	 * Clears the image and prepares it for redrawing.
>+	 */
>+	public void clear() {
>+		initialised_ = false;
>+		view_.askForRedraw();
>+	}
>+	
>+	/**
>+	 * Returns a string representing the given value. This method is 
>+	 * redefined in "HistogramPaintListener.java" to convert value to 
>+	 * engineering notation.
>+	 * @param value The numeric value to convert to String.
>+	 * @return The String-formatted value.
>+	 */
>+	public String formatStringForHorizontalAxis(long value) {	
>+		return "" + value;
>+	}
>+	
>+	/**
>+	 * Returns a string representing the given value. This method is 
>+	 * redefined in "GraphPaintListener.java" to convert value to 
>+	 * scientific notation.
>+	 * @param value The numeric value to convert to String.
>+	 * @return The String-formatted value.
>+	 */
>+	public String formatStringForVerticalAxis(long value) {
>+		return "" + value;
>+	}
>+	
>+	/**
>+	 * Clears the points buffer, if any exists.
>+	 */
>+	public void clearPoints() { }
>+	
>+	/**
>+	 * Called for drawing elements after points are added to the graph.
>+	 */
>+	public void postAddDraw() { }
>+	
>+ /**
>+ * Returns the draw area height.
>+ * @return The draw area height.
>+ */
>+ public double getHeight() {
>+ 	return (clientArea_.height - 2.0*padding_ - horizontalAxisYOffset_ - 0*paddingTop_ - 1); 
>+ }
>+ 
>+ /**
>+ * Returns the histogram's draw area width.
>+ * @return The histogram's draw area width.
>+ */
>+ public double getWidth() {
>+ 	return (clientArea_.width - 2.0*padding_ - verticalAxisOffset_); //width of the plot area;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's draw area padding.
>+ * @return The histogram's draw area padding.
>+ */
>+ public int getPadding() {
>+ 	return padding_;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's draw area top padding.
>+ * @return The histogram's draw area top padding.
>+ */
>+ public int getPaddingTop() {
>+ 	return paddingTop_;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's vertical axis offset.
>+ * @return The histogram's vertical axis offset.
>+ */
>+ public int getVerticalAxisOffset() {
>+ 	return verticalAxisOffset_;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's horizontal axis offset.
>+ * @return The histogram's horizontal axis offset.
>+ */
>+ public int getHorizontalAxisYOffset() {
>+ 	return horizontalAxisYOffset_;
>+ }
>+	
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/GraphPaintListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/GraphPaintListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/GraphPaintListener.java	(revision 0)
>@@ -0,0 +1,77 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import java.text.DecimalFormat;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+
>+
>+/**
>+ * Graph paint listener.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class GraphPaintListener extends AbstractPaintListener {
>+
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the listener's view.
>+	 */
>+	public GraphPaintListener(AbstractView view) {
>+		super(view);
>+	}
>+	
>+	/**
>+	 * Adds points to the graph and draws them to the canvas.
>+	 * @param points The buffer of points to draw.
>+	 * @param nbPoints The number of points in the buffer.
>+	 */
>+	public void addPoints(ChartPoint[] points, int nbPoints) {
>+		axisImage_.setForeground(dataColor_);
>+		axisImage_.setBackground(dataColor_);
>+		
>+		double width = clientArea_.width - 2.0*padding_ - verticalAxisOffset_;
>+		double height = clientArea_.height - 2.0*padding_ - paddingTop_ - horizontalAxisYOffset_ - 1;
>+		
>+		double xMin = view_.getXMin();
>+		double xMax = view_.getXMax();
>+		
>+		double yMin = view_.getYMin();
>+		double yMax = view_.getYMax();
>+		
>+		for (int i = 0; i < nbPoints; i++) {
>+			long pointX = points[i].getX();
>+			long pointY = points[i].getY();
>+			
>+			double x = padding_ + ((pointX-xMin) / (xMax-xMin)) * width + verticalAxisOffset_;
>+			double y = paddingTop_ + padding_ + height - ((pointY-yMin) / (yMax-yMin)) * height;
>+			
>+			axisImage_.fillOval((int)x, (int)y, 3, 3);
>+		}
>+		
>+		redraw_ = true;
>+		view_.askForRedraw();
>+	}
>+
>+ /**
>+	 * Paints the vertical horizontal axis values in scientific notation in which the exponent is a multiple of three.
>+	 * @param value The numeric value to convert to scientific notation.
>+	 * @return The given value formatted according to the scientific notation.
>+	 */
>+ public String formatStringForVerticalAxis(long value) {
>+ 	DecimalFormat formatter = new DecimalFormat("0.0E0"); 
>+		return formatter.format(value);
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/HistogramPaintListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/HistogramPaintListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/HistogramPaintListener.java	(revision 0)
>@@ -0,0 +1,230 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import java.text.DecimalFormat;
>+
>+import org.eclipse.linuxtools.lttng.analysis.Config;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.Messages;
>+import org.eclipse.swt.SWTException;
>+import org.eclipse.swt.graphics.Image;
>+import org.eclipse.swt.widgets.Display;
>+import org.eclipse.ui.plugin.AbstractUIPlugin;
>+
>+
>+/**
>+ * Histogram paint listener.
>+ *
>+ * @author Philippe Sawicki
>+ */
>+public class HistogramPaintListener extends AbstractPaintListener {
>+	
>+	/**
>+	 * Histogram points buffer.
>+	 */
>+	protected ChartPoint[] points_;
>+	/**
>+	 * Number of points to consider in the buffer.
>+	 */
>+	protected int nbPoints_ = 0;
>+	
>+	/**
>+	 * Is a histogram bar so high that it is clipped from the draw area ?
>+	 */
>+	protected boolean barIsClipped_ = false;
>+	
>+
>+ /**
>+ * Constructor.
>+ * @param view A reference to the listener's view.
>+ */
>+ public HistogramPaintListener(AbstractView view) {
>+ super(view);
>+ }
>+
>+ /**
>+ * Adds points to the graph and draws them to the canvas.
>+ * @param points The buffer of points to draw.
>+ * @param nbPoints The number of points in the buffer.
>+ @author Philippe Sawicki, modified by Ali Jawhar
>+ */
>+ public void addPoints(ChartPoint[] points, int nbPoints) {
>+ points_ = points;
>+ nbPoints_ = nbPoints;
>+ 
>+ // These lines must stay at the end of this function :
>+ redraw_ = true;
>+ Display.getDefault().syncExec(new Runnable() {
>+ public void run() {
>+ 	try {
>+	 	postAddDraw();
>+	 view_.redraw();
>+ 	} catch (SWTException e) {
>+ 		// This exception will be thrown if the user closes the view
>+ 		// while it is receiving data from the Analyser.
>+ 		
>+ 		// ...
>+ 	}
>+ }
>+ });
>+ }
>+ 
>+ public void postAddDraw() {
>+ 	if (nbPoints_ == 0 || points_ == null)
>+ 		return;
>+ 	
>+ 	/**
>+ 	 * @todo Rethink this way of redrawing the histogram, because it starts getting crazy about here...
>+ 	 */
>+ 	double zoomFactor = view_.getZoomFactor();
>+ 	
>+ 	// Calculate the vertical axis factor and see if it has changed
>+ 	double tmpDelta = delta;
>+ 	delta = 0;
>+		if (Long.toString(view_.getYMax()/(long)zoomFactor).length() > MAX_CHAR_VERTICAL_DISPLAY){
>+			delta = Long.toString(view_.getYMax()/(long)zoomFactor).length() - MAX_CHAR_VERTICAL_DISPLAY;
>+		}
>+		if (tmpDelta != delta) {
>+			view_.clearBackground();
>+		}
>+		
>+		paintBackground();
>+ 	paintVerticalAxis();
>+ 	paintHorizontalAxis();
>+ 	
>+ 	axisImage_.setForeground(dataColor_);
>+ axisImage_.setBackground(dataColor_);
>+
>+ //axisImage_.setBackground(backgroundColor_);
>+ // 1.a Iterate over the points, from 0 to nbPoints 
>+ // 1.b Find the max counter value
>+
>+ long maxValue = points_[0].getY(); 
>+ for (int i = 1; i < nbPoints_; i++) {
>+ 	if (points_[i].getY() > maxValue) {
>+ 		maxValue = points_[i].getY();
>+ 	}
>+ }
>+ 
>+ // 2. Assign the max value to the "yMax_" class attribute
>+ view_.setYMax(maxValue);// set the maximum vertical value
>+ 
>+ // 3. Draw the histogram bars using "axisImage_.fillRectangle(...)"
>+ // width of the plot area
>+ double width = clientArea_.width - 2.0*padding_ - verticalAxisOffset_;
>+ // height of the plot area
>+ double height = clientArea_.height - 2.0*padding_ - horizontalAxisYOffset_ - 1;
>+ 
>+ double yMin = view_.getYMin();
>+ double yMax = view_.getYMax();
>+ double barWidth = width/(nbPoints_);
>+ 
>+ boolean oneBarIsClipped = false;
>+ 
>+ for (int i = 0; i < nbPoints_; i++) {
>+ 	double pointY = points_[i].getY();
>+ 	
>+ 	// in pixels
>+ 	double x = padding_ + i*barWidth + verticalAxisOffset_ + 1;
>+ 	if (i == nbPoints_-1)
>+ 		x -= 1.0;
>+ 	double barHeight = zoomFactor * ((pointY-yMin) / (yMax-yMin)) * height;
>+ 	
>+ 	if (barHeight > height + 1) {
>+ 		barHeight = height;
>+ 		oneBarIsClipped = true;
>+ 		
>+ 		Image image = AbstractUIPlugin.imageDescriptorFromPlugin(
>+ 					Messages.getString("LatencyView.tmf.UI"), 
>+ 					"icons/warning.gif").createImage(Display.getCurrent());
>+ 		axisImage_.drawImage(image, 5, 3);
>+ 	}
>+ 	
>+ 	// Only draw the bars that have a barHeight of more than 1 pixel
>+ 	if (barHeight >= 1) {
>+ 		double y = 2*padding_ + height - barHeight;
>+ 		axisImage_.setBackground(dataColor_);
>+ 		
>+ 		if (barHeight > height-1) {
>+ 			axisImage_.fillRectangle((int)x, (int)y, (int)barWidth+1, (int)(barHeight+1));
>+ 		} else {
>+ 			axisImage_.fillRectangle((int)x, (int)y, (int)barWidth+1, (int)(barHeight+2));
>+ 		}
>+ 	}
>+ }
>+ 
>+ if (oneBarIsClipped)
>+ 	barIsClipped_ = true;
>+ else
>+ 	barIsClipped_ = false;
>+ }
>+
>+	/**
>+	 * Clears the image and prepares it for redrawing.
>+	 */
>+ public void clearPoints() {
>+ 	points_ = new ChartPoint[nbPoints_];
>+ 	for (int i = 0; i < points_.length; i++) {
>+ 		points_[i] = new ChartPoint(0, 0);
>+ 	}
>+ 	//nbPoints_ = 0;
>+ 	
>+ 	view_.askForRedraw();
>+ }
>+
>+ /**
>+	 * Paints the histogram horizontal axis values in engineering notation in which the exponent is a multiple of three.
>+	 * @param value The numeric value to convert to engineering notation.
>+	 * @return The given value formatted according to the engineering notation.
>+	 */
>+ public String formatStringForHorizontalAxis(long value) {
>+ 	DecimalFormat formatter = new DecimalFormat("##0.#E0"); 
>+		return formatter.format(value);
>+	}
>+ 
>+ /**
>+ * Returns the histogram's data points.
>+ * @return The histogram's data points.
>+ */
>+ public ChartPoint[] getPoints() {
>+ 	return points_;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's number of data points.
>+ * @return The histogram's number of data points.
>+ */
>+ public int getNBPoints() {
>+ 	return nbPoints_;
>+ }
>+ 
>+ /**
>+ * Returns the histogram's bar Width.
>+ * @return The histogram's bar Width.
>+ */
>+ public double getBarWidth() {
>+ 	if (clientArea_ == null)
>+ 		return Config.HISTOGRAM_BAR_WIDTH;
>+ 	return (clientArea_.width - 2.0*padding_ - verticalAxisOffset_) / nbPoints_;
>+ }
>+ 
>+ /**
>+ * Returns "true" if a histogram bar is so high that it cannot be drawn in the draw area, "false" otherwise.
>+ * @return "true" if a histogram bar is so high that it cannot be drawn in the draw area, "false" otherwise.
>+ */
>+ public boolean barIsClipped() {
>+ 	return barIsClipped_;
>+ }
>+ 
>+}
>\ No newline at end of file
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TimePointerListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TimePointerListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TimePointerListener.java	(revision 0)
>@@ -0,0 +1,73 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+
>+
>+/**
>+ * Displays a tooltip showing the approximate values of the point under
>+ * the mouse cursor.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class TimePointerListener extends AbstractMouseListener {
>+	
>+	/**
>+	 * A reference to the observed view.
>+	 */
>+	protected AbstractView view_;
>+	
>+	/**
>+	 * A reference to the HistogramPaintListener.
>+	 */
>+	protected GraphPaintListener graph_ ;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the observed view.
>+	 * @param histogramPaintListener A reference to the histogram's paintListener.
>+	 */
>+	public TimePointerListener(AbstractView view, GraphPaintListener graphPaintListener) {
>+		view_ = view;
>+		graph_ = graphPaintListener;
>+	}
>+
>+	@Override
>+	protected void display() {
>+		long chartWidth = (long) graph_.getWidth();
>+		long chartHeight = (long) graph_.getHeight();
>+		
>+		mouseX_ -= graph_.getPadding() + graph_.getVerticalAxisOffset();
>+		mouseY_ -= graph_.getPadding() + graph_.getPaddingTop() + 1 ;
>+		mouseY_ = chartHeight - mouseY_; // Reverse the coordinates since (0;0) is a the top of the screen
>+		
>+		long xMin = view_.getXMin();
>+		long xMax = view_.getXMax();
>+		long yMin = view_.getYMin();
>+		long yMax = view_.getYMax();
>+		
>+		long xValue = mouseX_ * (xMax - xMin) / chartWidth + xMin;
>+		long yValue = mouseY_ * (yMax - yMin) / chartHeight + yMin;
>+		
>+		if (mouseX_ > 0 && mouseX_ < chartWidth
>+			&& mouseY_ > 0 && mouseY_ < chartHeight
>+			&& xValue != 0L && yValue != 0L
>+			&& xValue != Long.MAX_VALUE && yValue != Long.MAX_VALUE) {
>+			view_.setToolTipText("(x;y) â (" + xValue + ";" + yValue + ")");
>+		} else {
>+			view_.setToolTipText("");
>+		}
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TooltipListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TooltipListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/TooltipListener.java	(revision 0)
>@@ -0,0 +1,108 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+import org.eclipse.linuxtools.lttng.ui.views.latency.ChartPoint;
>+
>+
>+/**
>+ * Tooltip listener, displays the event count for each latency selected 
>+ * by the mouse click area on histogram.
>+ * 
>+ * @author Ali Jawhar
>+ */
>+public class TooltipListener extends AbstractMouseListener {
>+	
>+	/**
>+	 * A reference to the observed view.
>+	 */
>+	protected AbstractView view_;
>+	
>+	/**
>+	 * A reference to the HistogramPaintListener.
>+	 */
>+	protected HistogramPaintListener histogram_ ;
>+	
>+	/**
>+	 * Is the mouse over the warning icon, indicating that a bar is higher than the draw area due to zooming ?
>+	 */
>+	boolean displayWarning_ = false;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the observed view.
>+	 * @param histogramPaintListener A reference to the histogram's paintListener.
>+	 */
>+	public TooltipListener(AbstractView view, HistogramPaintListener histogramPaintListener) {
>+		view_ = view;
>+		histogram_ = histogramPaintListener;
>+	}
>+	
>+	@Override
>+	protected void display() {
>+		displayWarningTooltip();
>+		displayTooltip();
>+	}
>+	
>+	/**
>+	 * Displays a tooltip if the mouse is over the warning icon indication that a bar cannot be draw entirely
>+	 * due to the zoom factor.
>+	 */
>+	protected void displayWarningTooltip() {
>+		if (histogram_.barIsClipped()
>+			&& mouseX_ > 5 && mouseX_ < 21
>+			&& mouseY_ > 3 && mouseY_ < 18) {
>+			view_.setToolTipText("One or more bars is higher than the draw area due to zooming.");
>+			displayWarning_ = true;
>+		} else {
>+			displayWarning_ = false;
>+		}
>+	}
>+	
>+	/**
>+	 * Displays the tooltip showing the details of the histogram bar pointed
>+	 * by the mouse.
>+	 */
>+	protected void displayTooltip() {
>+		double barWidth = histogram_.getBarWidth();
>+		double height = histogram_.getHeight(); // height of the plot area
>+		long yMin = view_.getYMin();
>+		long yMax = view_.getYMax();
>+		double zoomFactor = view_.getZoomFactor();
>+		int padding = histogram_.getPadding();
>+		int verticalAxisOffset = histogram_.getVerticalAxisOffset();
>+		ChartPoint[] points = histogram_.getPoints();
>+		int nbPoints = histogram_.getNBPoints();
>+		int index = (int)((mouseX_ - padding - verticalAxisOffset)/barWidth);
>+		
>+		double barHeight = 0.0;
>+		if (index >= 0 && index < nbPoints) {
>+			barHeight = (zoomFactor * height*(points[index].getY()-yMin) / (yMax-yMin));
>+		}
>+		mouseY_ = (long)height - (mouseY_ - 2*padding);
>+		
>+		// Verifying mouse pointer is over histogram bar
>+		if (index >= 0 && index < nbPoints && mouseY_ < barHeight && mouseY_ < height && mouseX_ > (verticalAxisOffset+padding)) {
>+			if (index+1 < nbPoints){
>+				view_.setToolTipText("(lat;#evt) = (["+points[index].getX()+ ","+(points[index+1].getX()-1)+"] ; " + points[index].getY() + ")");
>+			} else {
>+				long delta = points[index].getX() - points[index-1].getX();
>+				view_.setToolTipText("(lat;#evt) = (["+points[index].getX()+ ","+(points[index].getX()+delta-1)+"] ; " + points[index].getY() + ")");
>+			}
>+	 } else if (displayWarning_ == false) {
>+			view_.setToolTipText("");
>+		}
>+	}
>+
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/ZoomListener.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/ZoomListener.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/listeners/ZoomListener.java	(revision 0)
>@@ -0,0 +1,113 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency.listeners;
>+
>+import org.eclipse.linuxtools.lttng.ui.views.latency.AbstractView;
>+import org.eclipse.swt.SWT;
>+import org.eclipse.swt.widgets.Canvas;
>+import org.eclipse.swt.widgets.Event;
>+import org.eclipse.swt.widgets.Listener;
>+
>+/**
>+ * Canvas zoom listener.
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class ZoomListener implements Listener {
>+	
>+	/**
>+	 * A reference to the observed view.
>+	 */
>+	protected AbstractView view_;
>+	/**
>+	 * Default zoom factor.
>+	 */
>+	protected int zoomFactor_;
>+	/**
>+	 * Zoom increment.
>+	 */
>+	protected int zoomIncrement_ = 30;
>+	
>+	
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the observed view.
>+	 * @param defaultZoomFactor Default zoom factor.
>+	 */
>+	public ZoomListener(AbstractView view, int defaultZoomFactor) {
>+		view_ = view;
>+		zoomFactor_ = defaultZoomFactor;
>+	}
>+	
>+	/**
>+	 * Constructor.
>+	 * @param view A reference to the observed view.
>+	 */
>+	public ZoomListener(AbstractView view) {
>+		this(view, 0);
>+	}
>+
>+	/**
>+	 * Handles the event.
>+	 */
>+	public void handleEvent(Event event) {
>+		switch (event.type) {
>+			case SWT.MouseWheel:
>+				/**
>+				 * @todo Find a better way to get the mouse wheel scroll direction
>+				 */
>+				boolean scrollDown = (event.count == 0 ? false : (event.count > 0 ? false : true));
>+				int zoomStep = zoomIncrement_;
>+				if (scrollDown)
>+					zoomStep = -zoomIncrement_;
>+				zoomFactor_ = Math.max(0, zoomFactor_ + zoomStep);
>+				
>+				Canvas canvas = (Canvas)event.widget;
>+				if (view_ != null){
>+					// clear the background to allow redraw of values of the vertical axis. 
>+					view_.clearBackground();
>+					view_.redrawTitle();
>+					view_.askForRedraw();
>+				}
>+				canvas.redraw();
>+				break;
>+		}
>+	}
>+	
>+	/**
>+	 * Returns the zoom factor.
>+	 * @return The zoom factor.
>+	 */
>+	public int getZoomFactor() {
>+		if (zoomFactor_ < 1)
>+			return 1;
>+		else
>+			return zoomFactor_;
>+	}
>+	
>+	/**
>+	 * Returns the zoom increment.
>+	 * @return The zoom increment.
>+	 */
>+	public int getZoomIncrement() {
>+		return zoomIncrement_;
>+	}
>+	
>+	/**
>+	 * Sets the zoom increment.
>+	 * @param zoomIncrement The new zoom increment.
>+	 */
>+	public void setZoomIncrement(int zoomIncrement) {
>+		zoomIncrement_ = zoomIncrement;
>+	}
>+	
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/Messages.java
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/Messages.java	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/Messages.java	(revision 0)
>@@ -0,0 +1,55 @@
>+/*******************************************************************************
>+ * Copyright (c) 2010 Ericsson
>+ * 
>+ * 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:
>+ * Philippe Sawicki (INF4990.A2010@gmail.com) - Initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.linuxtools.lttng.ui.views.latency;
>+
>+import java.util.MissingResourceException;
>+import java.util.ResourceBundle;
>+
>+
>+/**
>+ * Returns localised strings from the resource bundle (i.e. "messages.properties").
>+ * 
>+ * @author Philippe Sawicki
>+ */
>+public class Messages {
>+	
>+	/**
>+	 * Bundle name.
>+	 */
>+	private static final String BUNDLE_NAME = "org.eclipse.linuxtools.lttng.ui.views.latency.messages"; //$NON-NLS-1$
>+
>+	/**
>+	 * A reference to the resource bundle.
>+	 */
>+	private static final ResourceBundle RESOURCE_BUNDLE = ResourceBundle.getBundle(BUNDLE_NAME);
>+
>+	
>+	/**
>+	 * Private constructor to defeat instantiation.
>+	 */
>+	private Messages() {
>+		
>+	}
>+
>+	/**
>+	 * Returns the localised String for the given key-ID.
>+	 * @param key The key of the localised String.
>+	 * @return The localised String for the given key-ID.
>+	 */
>+	public static String getString(String key) {
>+		try {
>+			return RESOURCE_BUNDLE.getString(key);
>+		} catch (MissingResourceException e) {
>+			return '!' + key + '!';
>+		}
>+	}
>+}
>Index: org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/messages.properties
>===================================================================
>--- org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/messages.properties	(revision 0)
>+++ org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/latency/messages.properties	(revision 0)
>@@ -0,0 +1,44 @@
>+LatencyView.Action.IncreaseBarWidth.Tooltip=Increase histogram bar width
>+LatencyView.Action.DecreaseBarWidth.Tooltip=Decrease histogram bar width
>+LatencyView.Action.AddEvents.Tooltip=Add matching events
>+LatencyView.Action.DeleteEvents.Tooltip=Deleted matching events
>+LatencyView.Action.ListEvents.Tooltip=List matching events
>+LatencyView.Dialogs.AddEvents.Title=Add event pairs
>+LatencyView.Dialogs.AddEvents.Message=Select a pair of events to add it to the match list :
>+LatencyView.Dialogs.AddEvents.Buttons.Add=Add
>+LatencyView.Dialogs.AddEvents.Buttons.Close=Close
>+LatencyView.Dialogs.AddEvents.Columns.Start=Start event types
>+LatencyView.Dialogs.AddEvents.Columns.End=End event types
>+LatencyView.Dialogs.AddEvents.Columns.List.Trigger=Trigger event type
>+LatencyView.Dialogs.AddEvents.Columns.List.End=End event type
>+LatencyView.Dialogs.AddEvents.Errors.NoSelection=You must select one item from both lists.
>+LatencyView.Dialogs.AddEvents.Errors.StartNotSelected=You must select one item from the start event list.
>+LatencyView.Dialogs.AddEvents.Errors.EndNotSelected=You must select one item from the end event list.
>+LatencyView.Dialogs.AddEvents.Errors.SameSelected=The same event cannot be selected in both list at the same time.
>+LatencyView.Dialogs.AddEvents.Errors.AlreadyMatched=The start and end events are already matched.
>+LatencyView.Dialogs.AddEvents.Errors.StartAlreadyMatched=The start event is already matched.
>+LatencyView.Dialogs.AddEvents.Errors.EndAlreadyMatched=The end event is already matched.
>+LatencyView.Dialogs.AddEvents.Errors.StartAsEnd=The start event is already matched as an end event.
>+LatencyView.Dialogs.AddEvents.Errors.EndAsStart=The end event is already matched as a start event.
>+LatencyView.Dialogs.DeleteEvents.Title=Delete event pairs
>+LatencyView.Dialogs.DeleteEvents.Message=Select a pair of matched events to remove it from the list :
>+LatencyView.Dialogs.DeleteEvents.Buttons.Close=Close
>+LatencyView.Dialogs.DeleteEvents.Buttons.Delete=Delete
>+LatencyView.Dialogs.DeleteEvents.Confirm.Title=Confirm event deletion
>+LatencyView.Dialogs.DeleteEvents.Confirm.Message=Are you sure you want to delete these event pairs?
>+LatencyView.Dialogs.ListEvents.Title=Matched events list
>+LatencyView.Dialogs.ListEvents.Message=List of matched events for latency computation :
>+LatencyView.Dialogs.ListEvents.Buttons.Close=Close
>+LatencyView.Dialogs.ListEvents.Buttons.Reset=Reset to default pairs
>+LatencyView.Dialogs.ListEvents.Columns.Trigger=Trigger event type
>+LatencyView.Dialogs.ListEvents.Columns.End=End event type
>+LatencyView.Dialogs.ListEvents.Confirm.Title=Confirm pairs reset
>+LatencyView.Dialogs.ListEvents.Confirm.Message=Are you sure you want to reset the event pairs to their default values?
>+LatencyView.Graphs.Graph.Title=Latency VS Time
>+LatencyView.Graphs.Graph.XAxisLabel=time (ns)
>+LatencyView.Graphs.Graph.YAxisLabel=latency (ms)
>+LatencyView.Graphs.Histogram.Title=Latency Distribution
>+LatencyView.Graphs.Histogram.XAxisLabel=latency (ns)
>+LatencyView.Graphs.Histogram.YAxisLabel=# events
>+LatencyView.msgSlogan=Latency View
>+LatencyView.tmf.UI=org.eclipse.linuxtools.lttng.ui
>\ No newline at end of file

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Attachments on bug 331467: 184440 | 185278 | 185279 | 201090 | 201276 | 201280 | 209983