| /******************************************************************************* |
| * Copyright (c) 2004, 2007 Mylyn project committers and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.context.ui; |
| |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| import org.eclipse.mylyn.context.core.AbstractContextStructureBridge; |
| import org.eclipse.mylyn.context.core.ContextCore; |
| import org.eclipse.mylyn.context.core.IInteractionElement; |
| import org.eclipse.mylyn.context.core.InterestComparator; |
| |
| /** |
| * Sorts view elements by degree-of-interest. |
| * |
| * @author Mik Kersten |
| * @since 2.0 |
| */ |
| public class InterestSorter extends ViewerSorter { |
| |
| protected InterestComparator<Object> comparator = new InterestComparator<Object>(); |
| |
| @Override |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| IInteractionElement element1 = getCorresponding(e1); |
| IInteractionElement element2 = getCorresponding(e2); |
| if (element1 != null && element2 != null) { |
| return comparator.compare(element1, element2); |
| } else { |
| return 0; |
| } |
| } |
| |
| private IInteractionElement getCorresponding(Object object) { |
| if (object instanceof IInteractionElement) { |
| return (IInteractionElement) object; |
| } else { |
| AbstractContextStructureBridge bridge = ContextCore.getStructureBridge(object); |
| String handle = bridge.getHandleIdentifier(object); |
| return ContextCore.getContextManager().getElement(handle); |
| } |
| } |
| |
| } |