org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/internal/tmf/ui/project/wizards/tracepkg/TracePackageContentProvider.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  *     Marc-Andre Laperle - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.tmf.ui.project.wizards.tracepkg;
  14
  15 import org.eclipse.jface.viewers.ITreeContentProvider;
  16 import org.eclipse.jface.viewers.Viewer;
  17
  18 /**
  19  * A content provider to display the content of a trace package in a tree
  20  *
  21  * @author Marc-Andre Laperle
  22  */
  23 public class TracePackageContentProvider implements ITreeContentProvider {
  24
  25     @Override
  26     public void dispose() {
  27     }
  28
  29     @Override
  30     public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  31     }
  32
  33     @Override
  34     public Object[] getElements(Object inputElement) {
  35         if (inputElement instanceof TracePackageElement[]) {
  36             return (TracePackageElement[]) inputElement;
  37         }
  38         return null;
  39     }
  40
  41     @Override
  42     public Object[] getChildren(Object parentElement) {
  43         return ((TracePackageElement) parentElement).getVisibleChildren();
  44     }
  45
  46     @Override
  47     public Object getParent(Object element) {
  48         return ((TracePackageElement) element).getParent();
  49     }
  50
  51     @Override
  52     public boolean hasChildren(Object element) {
  53         TracePackageElement traceTransferElement = (TracePackageElement) element;
  54         TracePackageElement[] visibleChildren = traceTransferElement.getVisibleChildren();
  55         return visibleChildren != null && visibleChildren.length > 0;
  56     }
  57
  58 }