| /******************************************************************************* |
| * Copyright (c) 2010, 2017 IBM Corporation 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.internal.patch; |
| |
| import java.util.Comparator; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.compare.structuremergeviewer.DiffNode; |
| import org.eclipse.compare.structuremergeviewer.DocumentRangeNode; |
| import org.eclipse.jface.util.Policy; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| |
| public class DiffViewerComparator extends ViewerSorter { |
| |
| public boolean isSorterProperty(Object element, Object property) { |
| return false; |
| } |
| |
| @Override |
| public int category(Object node) { |
| if (node instanceof DiffNode) { |
| Object o= ((DiffNode) node).getId(); |
| if (o instanceof DocumentRangeNode) |
| return ((DocumentRangeNode) o).getTypeCode(); |
| } |
| return 0; |
| } |
| |
| @Override |
| protected Comparator<? super String> getComparator() { |
| return (arg0, arg1) -> { |
| String label0 = arg0 == null ? "" : arg0.toString(); //$NON-NLS-1$ |
| String label1 = arg1 == null ? "" : arg1.toString(); //$NON-NLS-1$ |
| |
| // see org.eclipse.compare.internal.patch.Hunk.getDescription() |
| String pattern = "\\d+,\\d+ -> \\d+,\\d+.*"; //$NON-NLS-1$ |
| |
| if (Pattern.matches(pattern, label0) |
| && Pattern.matches(pattern, label1)) { |
| int oldStart0 = Integer.parseInt(label0.split(",")[0]); //$NON-NLS-1$ |
| int oldStart1 = Integer.parseInt(label1.split(",")[0]); //$NON-NLS-1$ |
| |
| return oldStart0 - oldStart1; |
| } |
| return Policy.getComparator().compare(arg0, arg1); |
| }; |
| } |
| } |