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