org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/viewers/xycharts/TmfChartTimeStampFormat.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  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.tracecompass.tmf.ui.viewers.xycharts;
  13
  14 import java.text.FieldPosition;
  15 import java.text.SimpleDateFormat;
  16 import java.util.Date;
  17
  18 import org.eclipse.tracecompass.tmf.core.timestamp.TmfTimestampFormat;
  19
  20 /**
  21  * SimpleDateFormat class for displaying time information in SWT charts
  22  * using the TmfTimestampFormat class.
  23  *
  24  * @author Bernd Hufmann
  25  */
  26 public class TmfChartTimeStampFormat extends SimpleDateFormat {
  27
  28     // ------------------------------------------------------------------------
  29     // Constants
  30     // ------------------------------------------------------------------------
  31     private static final long serialVersionUID = 3719743469686142387L;
  32
  33     // ------------------------------------------------------------------------
  34     // Attributes
  35     // ------------------------------------------------------------------------
  36     private long fOffset;
  37
  38     // ------------------------------------------------------------------------
  39     // Constructors
  40     // ------------------------------------------------------------------------
  41     /**
  42      * Standard Constructor
  43      *
  44      * @param offset
  45      *        offset to apply before formatting time (time = time + offset)
  46      */
  47     public TmfChartTimeStampFormat(long offset) {
  48         fOffset = offset;
  49     }
  50
  51     // ------------------------------------------------------------------------
  52     // Operations
  53     // ------------------------------------------------------------------------
  54     @Override
  55     public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
  56
  57         long time = date.getTime() + fOffset;
  58         toAppendTo.append(TmfTimestampFormat.getDefaulTimeFormat().format(time));
  59         return toAppendTo;
  60     }
  61
  62 }