org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/cpuusage/CpuUsageView.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 École Polytechnique de Montréal
   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  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.lttng2.kernel.ui.views.cpuusage;
  14
  15 import org.eclipse.linuxtools.tmf.core.signal.TmfTraceSelectedSignal;
  16 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  17 import org.eclipse.linuxtools.tmf.ui.viewers.xycharts.TmfXYChartViewer;
  18 import org.eclipse.linuxtools.tmf.ui.views.TmfView;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.custom.SashForm;
  21 import org.eclipse.swt.layout.FillLayout;
  22 import org.eclipse.swt.widgets.Composite;
  23
  24 /**
  25  * CPU usage view. It contains 2 viewers: one tree viewer showing all the
  26  * threads who were on the CPU in the time range, and one XY chart viewer
  27  * plotting the total time spent on CPU and the time of the threads selected in
  28  * the tree viewer.
  29  *
  30  * @author Geneviève Bastien
  31  */
  32 public class CpuUsageView extends TmfView {
  33
  34     /** ID string */
  35     public static final String ID = "org.eclipse.linuxtools.lttng2.kernel.ui.views.cpuusage"; //$NON-NLS-1$
  36
  37     /**
  38      * Constructor
  39      */
  40     public CpuUsageView() {
  41         super(Messages.CpuUsageView_Title);
  42     }
  43
  44     @Override
  45     public void createPartControl(Composite parent) {
  46
  47         final SashForm sash = new SashForm(parent, SWT.NONE);
  48
  49         CpuUsageComposite treeViewer = new CpuUsageComposite(sash);
  50
  51         /* Build the XY chart part of the view */
  52         TmfXYChartViewer xyViewer = new CpuUsageXYViewer(sash, treeViewer);
  53
  54         sash.setLayout(new FillLayout());
  55
  56         /* Initialize the viewers with the currently selected trace */
  57         ITmfTrace trace = getActiveTrace();
  58         if (trace != null) {
  59             TmfTraceSelectedSignal signal = new TmfTraceSelectedSignal(this, trace);
  60             treeViewer.traceSelected(signal);
  61             xyViewer.traceSelected(signal);
  62         }
  63
  64     }
  65
  66     @Override
  67     public void setFocus() {
  68     }
  69
  70 }