| /******************************************************************************* |
| * Copyright (c) 2009, 2011 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; |
| |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.IDecoration; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaElementDelta; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| public class BuildpathIndicatorLabelDecorator extends AbstractJavaElementLabelDecorator { |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void decorate(Object element, IDecoration decoration) { |
| ImageDescriptor overlay= getOverlay(element); |
| if (overlay != null) { |
| decoration.addOverlay(overlay, IDecoration.BOTTOM_LEFT); |
| } |
| } |
| |
| private ImageDescriptor getOverlay(Object element) { |
| if (element instanceof IResource) { |
| IResource resource= (IResource) element; |
| IProject project= resource.getProject(); |
| if (project != null) { |
| IJavaProject javaProject= JavaCore.create(project); |
| if (javaProject != null) { |
| if (javaProject.isOnClasspath(resource)) { |
| IJavaElement javaElement= JavaCore.create(resource, javaProject); |
| try { |
| if (javaElement instanceof IPackageFragmentRoot |
| && ((IPackageFragmentRoot)javaElement).getKind() != IPackageFragmentRoot.K_SOURCE) { |
| return JavaPluginImages.DESC_OVR_LIBRARY; |
| } |
| } catch (JavaModelException e) { |
| return null; |
| } |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| protected void processDelta(IJavaElementDelta delta, List<IJavaElement> result) { |
| IJavaElement elem= delta.getElement(); |
| |
| boolean isChanged= delta.getKind() == IJavaElementDelta.CHANGED; |
| boolean isRemoved= delta.getKind() == IJavaElementDelta.REMOVED; |
| int flags= delta.getFlags(); |
| |
| switch (elem.getElementType()) { |
| case IJavaElement.JAVA_MODEL: |
| processChildrenDelta(delta, result); |
| return; |
| case IJavaElement.JAVA_PROJECT: |
| if (isRemoved || (isChanged && |
| (flags & IJavaElementDelta.F_CLOSED) != 0)) { |
| return; |
| } |
| processChildrenDelta(delta, result); |
| return; |
| case IJavaElement.PACKAGE_FRAGMENT_ROOT: |
| if (isRemoved) { |
| return; |
| } |
| try { |
| if ((((flags & IJavaElementDelta.F_REMOVED_FROM_CLASSPATH) != 0) || |
| ((flags & IJavaElementDelta.F_ADDED_TO_CLASSPATH) != 0)) |
| && ((IPackageFragmentRoot)elem).getKind() != IPackageFragmentRoot.K_SOURCE) { |
| result.add(elem); |
| } |
| } catch (JavaModelException e) { |
| // don't update |
| } |
| return; |
| default: |
| return; |
| } |
| } |
| |
| } |