org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/histogram/ChildrenHistogramCanvas.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 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  *   William Bourque - Initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.linuxtools.lttng.ui.views.histogram;
  13
  14 import org.eclipse.swt.widgets.Composite;
  15
  16 /**
  17  * <b><u>ChildrenHistogramCanvas</u></b>
  18  * <p>
  19  * Extended implementation of the HistogramCanvas.
  20  * <p>
  21  * This canvas goal is to display the "SelectionWindow" in details.
  22  */
  23 public class ChildrenHistogramCanvas extends HistogramCanvas {
  24
  25         protected HistogramView parentHistogramWindow = null;
  26
  27         /**
  28          * ChildrenHistogramCanvas constructor.<p>
  29          * Same as HistogramCanvas, but receive a parent HistogramView that we can call from here.
  30          *
  31          * @param parent                Composite control which will be the parent of the new instance (cannot be null)
  32          * @param                               Style the style of control to construct
  33          */
  34         public ChildrenHistogramCanvas(HistogramView newParentWindow, Composite parent, int style) {
  35                 super(parent, style);
  36
  37                 parentHistogramWindow = newParentWindow;
  38         }
  39
  40         /**
  41          * Notify the parent HistogramView that we have updated information.<p>
  42          * This is intended to be called at the end of the request when we know we have up-to-date information.
  43          */
  44         @Override
  45         public void notifyParentUpdatedInformation() {
  46                 parentHistogramWindow.updateSelectedWindowInformation();
  47         }
  48 }