| /******************************************************************************* |
| * Copyright (c) 2000, 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.jdt.internal.ui.wizards.buildpaths; |
| |
| import org.eclipse.jface.viewers.ContentViewer; |
| import org.eclipse.jface.viewers.IBaseLabelProvider; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| |
| import org.eclipse.jdt.core.IAccessRule; |
| import org.eclipse.jdt.core.IClasspathEntry; |
| |
| public class CPListElementSorter extends ViewerComparator { |
| |
| private static final int SOURCE= 0; |
| private static final int PROJECT= 1; |
| private static final int LIBRARY= 2; |
| private static final int VARIABLE= 3; |
| private static final int CONTAINER= 4; |
| |
| private static final int ATTRIBUTE= 5; |
| private static final int CONTAINER_ENTRY= 6; |
| |
| private static final int OTHER= 7; |
| |
| /* |
| * @see ViewerSorter#category(Object) |
| */ |
| @Override |
| public int category(Object obj) { |
| if (obj instanceof CPListElement) { |
| CPListElement element= (CPListElement) obj; |
| if (element.getParentContainer() != null) { |
| return CONTAINER_ENTRY; |
| } |
| switch (element.getEntryKind()) { |
| case IClasspathEntry.CPE_LIBRARY: |
| return LIBRARY; |
| case IClasspathEntry.CPE_PROJECT: |
| return PROJECT; |
| case IClasspathEntry.CPE_SOURCE: |
| return SOURCE; |
| case IClasspathEntry.CPE_VARIABLE: |
| return VARIABLE; |
| case IClasspathEntry.CPE_CONTAINER: |
| return CONTAINER; |
| } |
| } else if (obj instanceof CPListElementAttribute) { |
| return ATTRIBUTE; |
| } else if (obj instanceof IAccessRule) { |
| return ATTRIBUTE; |
| } |
| return OTHER; |
| } |
| |
| @Override |
| public int compare(Viewer viewer, Object e1, Object e2) { |
| |
| int cat1 = category(e1); |
| int cat2 = category(e2); |
| |
| if (cat1 != cat2) |
| return cat1 - cat2; |
| |
| if (cat1 == ATTRIBUTE || cat1 == CONTAINER_ENTRY) { |
| return 0; // do not sort attributes or container entries |
| } |
| |
| if (viewer instanceof ContentViewer) { |
| IBaseLabelProvider prov = ((ContentViewer) viewer).getLabelProvider(); |
| if (prov instanceof ILabelProvider) { |
| ILabelProvider lprov = (ILabelProvider) prov; |
| String name1 = lprov.getText(e1); |
| String name2 = lprov.getText(e2); |
| if( e1 instanceof CPListElement && e2 instanceof CPListElement) { |
| CPListElement cp1 = (CPListElement)e1; |
| CPListElement cp2 =(CPListElement)e2; |
| if(cp1.isRootNodeForPath() && cp2.isRootNodeForPath()) { |
| if(cp1.isClassPathRootNode() && cp2.isModulePathRootNode()) { |
| return 1; |
| } |
| if(cp1.isModulePathRootNode() && cp2.isClassPathRootNode()) { |
| return -1; |
| } |
| } |
| |
| } |
| return getComparator().compare(name1, name2); |
| } |
| } |
| return 0; |
| } |
| |
| |
| } |