| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.viewsupport; |
| |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IResource; |
| |
| import org.eclipse.jface.action.IStatusLineManager; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| |
| import org.eclipse.ui.model.IWorkbenchAdapter; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| |
| import org.eclipse.jdt.internal.ui.JavaUIMessages; |
| import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer; |
| |
| /** |
| * Add the <code>StatusBarUpdater</code> to your ViewPart to have the statusbar |
| * describing the selected elements. |
| */ |
| public class StatusBarUpdater implements ISelectionChangedListener { |
| |
| private final long LABEL_FLAGS= JavaElementLabels.DEFAULT_QUALIFIED | JavaElementLabels.ROOT_POST_QUALIFIED | JavaElementLabels.APPEND_ROOT_PATH | |
| JavaElementLabels.M_PARAMETER_TYPES | JavaElementLabels.M_PARAMETER_NAMES | JavaElementLabels.M_APP_RETURNTYPE | JavaElementLabels.M_EXCEPTIONS | |
| JavaElementLabels.F_APP_TYPE_SIGNATURE | JavaElementLabels.T_TYPE_PARAMETERS; |
| |
| private IStatusLineManager fStatusLineManager; |
| |
| public StatusBarUpdater(IStatusLineManager statusLineManager) { |
| fStatusLineManager= statusLineManager; |
| } |
| |
| /* |
| * @see ISelectionChangedListener#selectionChanged |
| */ |
| public void selectionChanged(SelectionChangedEvent event) { |
| String statusBarMessage= formatMessage(event.getSelection()); |
| fStatusLineManager.setMessage(statusBarMessage); |
| } |
| |
| |
| protected String formatMessage(ISelection sel) { |
| if (sel instanceof IStructuredSelection && !sel.isEmpty()) { |
| IStructuredSelection selection= (IStructuredSelection) sel; |
| |
| int nElements= selection.size(); |
| if (nElements > 1) { |
| return Messages.format(JavaUIMessages.StatusBarUpdater_num_elements_selected, String.valueOf(nElements)); |
| } else { |
| Object elem= selection.getFirstElement(); |
| if (elem instanceof IJavaElement) { |
| return formatJavaElementMessage((IJavaElement) elem); |
| } else if (elem instanceof IResource) { |
| return formatResourceMessage((IResource) elem); |
| } else if (elem instanceof ClassPathContainer) { |
| ClassPathContainer container= (ClassPathContainer) elem; |
| return container.getLabel(container) + JavaElementLabels.CONCAT_STRING + container.getJavaProject().getElementName(); |
| } else if (elem instanceof IAdaptable) { |
| IWorkbenchAdapter wbadapter= (IWorkbenchAdapter) ((IAdaptable)elem).getAdapter(IWorkbenchAdapter.class); |
| if (wbadapter != null) { |
| return wbadapter.getLabel(elem); |
| } |
| } |
| } |
| } |
| return ""; //$NON-NLS-1$ |
| } |
| |
| private String formatJavaElementMessage(IJavaElement element) { |
| return JavaElementLabels.getElementLabel(element, LABEL_FLAGS); |
| } |
| |
| private String formatResourceMessage(IResource element) { |
| IContainer parent= element.getParent(); |
| if (parent != null && parent.getType() != IResource.ROOT) |
| return element.getName() + JavaElementLabels.CONCAT_STRING + parent.getFullPath().makeRelative().toString(); |
| else |
| return element.getName(); |
| } |
| |
| } |