org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/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.linuxtools.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.linuxtools.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  * @since 3.0
  26  */
  27 public class TmfChartTimeStampFormat extends SimpleDateFormat {
  28
  29     // ------------------------------------------------------------------------
  30     // Constants
  31     // ------------------------------------------------------------------------
  32     private static final long serialVersionUID = 3719743469686142387L;
  33
  34     // ------------------------------------------------------------------------
  35     // Attributes
  36     // ------------------------------------------------------------------------
  37     private long fOffset;
  38
  39     // ------------------------------------------------------------------------
  40     // Constructors
  41     // ------------------------------------------------------------------------
  42     /**
  43      * Standard Constructor
  44      *
  45      * @param offset
  46      *        offset to apply before formatting time (time = time + offset)
  47      */
  48     public TmfChartTimeStampFormat(long offset) {
  49         fOffset = offset;
  50     }
  51
  52     // ------------------------------------------------------------------------
  53     // Operations
  54     // ------------------------------------------------------------------------
  55     @Override
  56     public StringBuffer format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) {
  57
  58         long time = date.getTime() + fOffset;
  59         toAppendTo.append(TmfTimestampFormat.getDefaulTimeFormat().format(time));
  60         return toAppendTo;
  61     }
  62
  63 }