analysis/org.eclipse.tracecompass.analysis.timing.ui/src/org/eclipse/tracecompass/internal/analysis/timing/ui/views/segmentstore/scatter/SegmentStoreScatterGraphTooltipProvider.java

   1 /**********************************************************************
   2  * Copyright (c) 2015, 2016 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  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.tracecompass.internal.analysis.timing.ui.views.segmentstore.scatter;
  13
  14 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  15
  16 import org.eclipse.jdt.annotation.Nullable;
  17 import org.eclipse.tracecompass.internal.analysis.timing.ui.views.segmentstore.scatter.Messages;
  18 import org.eclipse.tracecompass.tmf.core.timestamp.ITmfTimestamp;
  19 import org.eclipse.tracecompass.tmf.core.timestamp.TmfTimestamp;
  20 import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.ITmfChartTimeProvider;
  21 import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.TmfClosestDataPointTooltipProvider;
  22 import org.swtchart.ISeries;
  23
  24 /**
  25  * Tooltip provider for durations scatter charts. It displays the y value of
  26  * position x as well as it highlights the closest data point.
  27  *
  28  * @author Bernd Hufmann
  29  */
  30 public class SegmentStoreScatterGraphTooltipProvider extends TmfClosestDataPointTooltipProvider{
  31
  32     // ------------------------------------------------------------------------
  33     // Constructors
  34     // ------------------------------------------------------------------------
  35     /**
  36      * Constructor for the segment store scatter chart tooltip provider.
  37      *
  38      * @param tmfChartViewer
  39      *                  - the parent chart viewer
  40      */
  41     public SegmentStoreScatterGraphTooltipProvider(ITmfChartTimeProvider tmfChartViewer) {
  42         super(tmfChartViewer);
  43         register();
  44     }
  45
  46     // ------------------------------------------------------------------------
  47     // TmfClosestDataPointTooltipProvider
  48     // ------------------------------------------------------------------------
  49     @Override
  50     protected @Nullable String createToolTipText(Parameter param) {
  51         ISeries[] series = getChart().getSeriesSet().getSeries();
  52         int seriesIndex = param.getSeriesIndex();
  53         int dataIndex = param.getDataIndex();
  54         if ((series != null) && (seriesIndex < series.length)) {
  55             ISeries serie = series[seriesIndex];
  56             double[] xS = serie.getXSeries();
  57             double[] yS = serie.getYSeries();
  58             if ((xS != null) && (yS != null) && (dataIndex < xS.length) && (dataIndex < yS.length)) {
  59                 StringBuffer buffer = new StringBuffer();
  60                 buffer.append(checkNotNull(Messages.SegmentStoreScatterGraphViewer_xAxis)).append('=');
  61                 buffer.append(new TmfTimestamp((long) xS[dataIndex] + getChartViewer().getTimeOffset(), ITmfTimestamp.NANOSECOND_SCALE).toString());
  62                 buffer.append('\n');
  63                 buffer.append(Messages.SegmentStoreScatterGraphViewer_yAxis).append('=');
  64                 buffer.append((long) yS[dataIndex]);
  65                 return buffer.toString();
  66             }
  67         }
  68         return null;
  69     }
  70
  71 }