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

   1 /*******************************************************************************
   2  * Copyright (c) 2013, 2014 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 java.util.List;
  16
  17 import org.eclipse.core.runtime.IProgressMonitor;
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.core.runtime.jobs.Job;
  21 import org.eclipse.jface.viewers.ISelectionChangedListener;
  22 import org.eclipse.jface.viewers.SelectionChangedEvent;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.widgets.Composite;
  25 import org.eclipse.swt.widgets.TableItem;
  26 import org.eclipse.tracecompass.internal.gdbtrace.core.event.GdbTraceEvent;
  27 import org.eclipse.tracecompass.internal.gdbtrace.core.event.GdbTraceEventContent;
  28 import org.eclipse.tracecompass.internal.gdbtrace.core.trace.GdbEventAspects;
  29 import org.eclipse.tracecompass.internal.gdbtrace.core.trace.GdbTrace;
  30 import org.eclipse.tracecompass.tmf.core.signal.TmfSignalHandler;
  31 import org.eclipse.tracecompass.tmf.core.signal.TmfSelectionRangeUpdatedSignal;
  32 import org.eclipse.tracecompass.tmf.core.signal.TmfTraceUpdatedSignal;
  33 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  34 import org.eclipse.tracecompass.tmf.core.trace.experiment.TmfExperiment;
  35 import org.eclipse.tracecompass.tmf.ui.viewers.events.TmfEventsTable;
  36
  37 /**
  38  * GDB Event Table
  39  *
  40  * @author Patrick Tasse
  41  */
  42 public class GdbEventsTable extends TmfEventsTable {
  43
  44     // ------------------------------------------------------------------------
  45     // Fields
  46     // ------------------------------------------------------------------------
  47
  48     private GdbTrace fSelectedTrace = null;
  49     private long fSelectedFrame = 0;
  50
  51     // ------------------------------------------------------------------------
  52     // Constructor
  53     // ------------------------------------------------------------------------
  54
  55     /**
  56      * Constructor
  57      *
  58      * @param parent
  59      *            the parent
  60      * @param cacheSize
  61      *            the cache size
  62      */
  63     public GdbEventsTable(Composite parent, int cacheSize) {
  64         super(parent, cacheSize, GdbEventAspects.getAspects());
  65         // Set the alignment of the first two columns
  66         fTable.getColumns()[0].setAlignment(SWT.RIGHT);
  67         fTable.getColumns()[1].setAlignment(SWT.RIGHT);
  68
  69         // Synchronize currently selected frame in GDB with table selection
  70         addSelectionChangedListener(new ISelectionChangedListener() {
  71             @Override
  72             public void selectionChanged(SelectionChangedEvent e) {
  73                 TableItem[] selection = fTable.getSelection();
  74                 if (selection.length > 0) {
  75                     TableItem selectedTableItem = selection[0];
  76                     if (selectedTableItem != null) {
  77                         Object data = selectedTableItem.getData();
  78                         if (data instanceof GdbTraceEvent) {
  79                             GdbTraceEvent event = (GdbTraceEvent) data;
  80                             GdbTrace gdbTrace = (GdbTrace) event.getTrace();
  81                             GdbTraceEventContent content = event.getContent();
  82                             selectFrame(gdbTrace, content.getFrameNumber());
  83                             return;
  84                         }
  85                     }
  86                 }
  87                 fSelectedTrace = null;
  88             }
  89         });
  90     }
  91
  92     @Override
  93     public void setTrace(ITmfTrace trace, boolean disposeOnClose) {
  94         super.setTrace(trace, disposeOnClose);
  95         if (trace instanceof GdbTrace) {
  96             fSelectedTrace = (GdbTrace) trace;
  97             fSelectedFrame = 0;
  98         } else if (trace instanceof TmfExperiment) {
  99             TmfExperiment experiment = (TmfExperiment) trace;
 100             List<ITmfTrace> expTraces = experiment.getTraces();
 101             if (!expTraces.isEmpty()) {
 102                 fSelectedTrace = (GdbTrace) expTraces.get(0);
 103                 fSelectedFrame = 0;
 104             }
 105         }
 106     }
 107
 108     @Override
 109     @TmfSignalHandler
 110     public void selectionRangeUpdated(final TmfSelectionRangeUpdatedSignal signal) {
 111         // do not synchronize on time
 112     }
 113
 114     private void selectFrame(final GdbTrace gdbTrace, final long frameNumber) {
 115         Job b = new Job("GDB Trace select frame") { //$NON-NLS-1$
 116             @Override
 117             protected IStatus run(IProgressMonitor monitor) {
 118                 // This sends commands to GDB and can potentially wait on the UI
 119                 // thread (gdb traces console buffer full) so it needs to be
 120                 // exectued on a non-UI thread
 121                 gdbTrace.selectFrame(frameNumber);
 122                 fSelectedTrace = gdbTrace;
 123                 fSelectedFrame = frameNumber;
 124                 return Status.OK_STATUS;
 125             }
 126         };
 127         b.setSystem(true);
 128         b.schedule();
 129     }
 130
 131     @Override
 132     @TmfSignalHandler
 133     public void traceUpdated(TmfTraceUpdatedSignal signal) {
 134         super.traceUpdated(signal);
 135         if (fSelectedTrace.getNbFrames() == fSelectedTrace.getNbEvents()) {
 136             selectFrame(fSelectedTrace, fSelectedFrame);
 137         }
 138     }
 139 }