org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/histogram/HistogramCurrentTimeControl.java

   1 /*******************************************************************************
   2  * Copyright (c) 2011, 2012 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  *   Francois Chouinard - Initial API and implementation
  11  *   Francois Chouinard - Moved from LTTng to TMF
  12  *******************************************************************************/
  13
  14 package org.eclipse.linuxtools.tmf.ui.views.histogram;
  15
  16 import org.eclipse.swt.widgets.Composite;
  17
  18 /**
  19  * This control provides a group containing a text control.
  20  *
  21  * @version 1.0
  22  * @author Francois Chouinard
  23  */
  24 public class HistogramCurrentTimeControl extends HistogramTextControl {
  25
  26     // ------------------------------------------------------------------------
  27     // Construction
  28     // ------------------------------------------------------------------------
  29
  30     /**
  31      * Constructor with default group and text value.
  32      *
  33      * @param parentView A parent histogram view
  34      * @param parent A parent composite to draw in
  35      * @param textStyle A test style
  36      * @param groupStyle A group style
  37      */
  38     public HistogramCurrentTimeControl(HistogramView parentView, Composite parent, int textStyle, int groupStyle) {
  39         this(parentView, parent, textStyle, groupStyle, "", HistogramUtils.nanosecondsToString(0L)); //$NON-NLS-1$
  40     }
  41
  42     /**
  43      *
  44      * Constructor
  45      * @param parentView A parent histogram view
  46      * @param parent A parent composite to draw in
  47      * @param textStyle A test style
  48      * @param groupStyle A group style
  49      * @param groupValue A group value
  50      * @param textValue A text value
  51      */
  52     public HistogramCurrentTimeControl(HistogramView parentView, Composite parent, int textStyle, int groupStyle, String groupValue, String textValue) {
  53         super(parentView, parent, textStyle, groupStyle, groupValue, textValue);
  54     }
  55
  56     // ------------------------------------------------------------------------
  57     // Operations
  58     // ------------------------------------------------------------------------
  59
  60     @Override
  61     protected void updateValue() {
  62         String stringValue = fTextValue.getText();
  63         long value = HistogramUtils.stringToNanoseconds(stringValue);
  64
  65         if (getValue() != value) {
  66             setValue(value);
  67             fParentView.updateCurrentEventTime(value);
  68         }
  69     }
  70
  71 }