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