org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/filter/FilterTreeContentProvider.java

   1 /*******************************************************************************
   2  * Copyright (c) 2010, 2013 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  *   Yuriy Vashchuk - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.filter;
  14
  15 import java.util.ArrayList;
  16
  17 import org.eclipse.jface.viewers.ITreeContentProvider;
  18 import org.eclipse.jface.viewers.Viewer;
  19 import org.eclipse.linuxtools.tmf.core.filter.model.ITmfFilterTreeNode;
  20
  21 /**
  22  * This is the Content Provider of our tree
  23  *
  24  * @version 1.0
  25  * @author Yuriy Vashchuk
  26  */
  27 public class FilterTreeContentProvider implements ITreeContentProvider {
  28
  29     @Override
  30     public void dispose() {
  31         // TODO Auto-generated method stub
  32     }
  33
  34     @Override
  35     public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  36         // TODO Auto-generated method stub
  37     }
  38
  39     @Override
  40     public Object[] getElements(Object inputElement) {
  41         if (inputElement instanceof ITmfFilterTreeNode) {
  42             ArrayList<ITmfFilterTreeNode> result = new ArrayList<>();
  43             for (int i = 0; i < ((ITmfFilterTreeNode) inputElement).getChildrenCount(); i++) {
  44                 result.add(((ITmfFilterTreeNode) inputElement).getChild(i));
  45             }
  46
  47             return result.toArray();
  48         }
  49         return null;
  50     }
  51
  52     @Override
  53     public Object[] getChildren(Object parentElement) {
  54         ArrayList<ITmfFilterTreeNode> result = new ArrayList<>();
  55         for (int i = 0; i < ((ITmfFilterTreeNode) parentElement).getChildrenCount(); i++) {
  56             result.add(((ITmfFilterTreeNode) parentElement).getChild(i));
  57         }
  58         return result.toArray();
  59     }
  60
  61     @Override
  62     public Object getParent(Object element) {
  63         return ((ITmfFilterTreeNode) element).getParent();
  64     }
  65
  66     @Override
  67     public boolean hasChildren(Object element) {
  68         return ((ITmfFilterTreeNode) element).hasChildren();
  69     }
  70
  71 }