org.eclipse.tracecompass.gdbtrace.ui/src/org/eclipse/tracecompass/internal/gdbtrace/ui/views/events/GdbEventsTable.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick Tasse - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.tracecompass.internal.gdbtrace.ui.views.events;
  14
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.core.runtime.IStatus;
  17 import org.eclipse.core.runtime.Status;
  18 import org.eclipse.core.runtime.jobs.Job;
  19 import org.eclipse.jface.viewers.ISelectionChangedListener;
  20 import org.eclipse.jface.viewers.SelectionChangedEvent;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.widgets.Composite;
  23 import org.eclipse.swt.widgets.TableItem;
  24 import org.eclipse.tracecompass.internal.gdbtrace.core.event.GdbTraceEvent;
  25 import org.eclipse.tracecompass.internal.gdbtrace.core.event.GdbTraceEventContent;
  26 import org.eclipse.tracecompass.internal.gdbtrace.core.trace.GdbEventAspects;
  27 import org.eclipse.tracecompass.internal.gdbtrace.core.trace.GdbTrace;
  28 import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler;
  29 import org.eclipse.tracecompass.tmf.core.signal.TmfTimeSynchSignal;
  30 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceUpdatedSignal;
  31 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  32 import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperiment;
  33 import org.eclipse.tracecompass.tmf.ui.viewers.events.TmfEventsTable;
  34
  35 /**
  36  * GDB Event Table
  37  *
  38  * @author Patrick Tasse
  39  */
  40 public class GdbEventsTable extends TmfEventsTable {
  41
  42     // ------------------------------------------------------------------------
  43     // Fields
  44     // ------------------------------------------------------------------------
  45
  46     private GdbTrace fSelectedTrace = null;
  47     private long fSelectedFrame = 0;
  48
  49     // ------------------------------------------------------------------------
  50     // Constructor
  51     // ------------------------------------------------------------------------
  52
  53     /**
  54      * Constructor
  55      *
  56      * @param parent
  57      *            the parent
  58      * @param cacheSize
  59      *            the cache size
  60      */
  61     public GdbEventsTable(Composite parent, int cacheSize) {
  62         super(parent, cacheSize, GdbEventAspects.getAspects());
  63         // Set the alignment of the first two columns
  64         fTable.getColumns()[0].setAlignment(SWT.RIGHT);
  65         fTable.getColumns()[1].setAlignment(SWT.RIGHT);
  66
  67         // Synchronize currently selected frame in GDB with table selection
  68         addSelectionChangedListener(new ISelectionChangedListener() {
  69             @Override
  70             public void selectionChanged(SelectionChangedEvent e) {
  71                 TableItem[] selection = fTable.getSelection();
  72                 if (selection.length > 0) {
  73                     TableItem selectedTableItem = selection[0];
  74                     if (selectedTableItem != null) {
  75                         Object data = selectedTableItem.getData();
  76                         if (data instanceof GdbTraceEvent) {
  77                             GdbTraceEvent event = (GdbTraceEvent) data;
  78                             GdbTrace gdbTrace = (GdbTrace) event.getTrace();
  79                             GdbTraceEventContent content = event.getContent();
  80                             selectFrame(gdbTrace, content.getFrameNumber());
  81                             return;
  82                         }
  83                     }
  84                 }
  85                 fSelectedTrace = null;
  86             }
  87         });
  88     }
  89
  90     @Override
  91     public void setTrace(ITmfTrace trace, boolean disposeOnClose) {
  92         super.setTrace(trace, disposeOnClose);
  93         if (trace instanceof GdbTrace) {
  94             fSelectedTrace = (GdbTrace) trace;
  95             fSelectedFrame = 0;
  96         } else if (trace instanceof TmfExperiment) {
  97             TmfExperiment experiment = (TmfExperiment) trace;
  98             if (experiment.getTraces().length > 0) {
  99                 fSelectedTrace = (GdbTrace) experiment.getTraces()[0];
 100                 fSelectedFrame = 0;
 101             }
 102         }
 103     }
 104
 105     @Override
 106     @TmfSignalHandler
 107     public void currentTimeUpdated(final TmfTimeSynchSignal signal) {
 108         // do not synchronize on time
 109     }
 110
 111     private void selectFrame(final GdbTrace gdbTrace, final long frameNumber) {
 112         Job b = new Job("GDB Trace select frame") { //$NON-NLS-1$
 113             @Override
 114             protected IStatus run(IProgressMonitor monitor) {
 115                 // This sends commands to GDB and can potentially wait on the UI
 116                 // thread (gdb traces console buffer full) so it needs to be
 117                 // exectued on a non-UI thread
 118                 gdbTrace.selectFrame(frameNumber);
 119                 fSelectedTrace = gdbTrace;
 120                 fSelectedFrame = frameNumber;
 121                 return Status.OK_STATUS;
 122             }
 123         };
 124         b.setSystem(true);
 125         b.schedule();
 126     }
 127
 128     @Override
 129     @TmfSignalHandler
 130     public void traceUpdated(TmfTraceUpdatedSignal signal) {
 131         super.traceUpdated(signal);
 132         if (fSelectedTrace.getNbFrames() == fSelectedTrace.getNbEvents()) {
 133             selectFrame(fSelectedTrace, fSelectedFrame);
 134         }
 135     }
 136 }