/*******************************************************************************
* Copyright (c) 2000, 2010 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.cdt.internal.ui.viewsupport;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.internal.ui.viewsupport.CElementLabels;
import org.eclipse.cdt.internal.ui.CUIMessages;
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.osgi.util.NLS;
/**
* 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= CElementLabels.DEFAULT_QUALIFIED | CElementLabels.ROOT_POST_QUALIFIED | CElementLabels.APPEND_ROOT_PATH |
CElementLabels.M_PARAMETER_TYPES | CElementLabels.M_APP_RETURNTYPE | CElementLabels.M_EXCEPTIONS |
CElementLabels.F_APP_TYPE_SIGNATURE;
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 NLS.bind(CUIMessages.StatusBarUpdater_num_elements_selected, String.valueOf(nElements));
}
Object elem= selection.getFirstElement();
if (elem instanceof ICElement) {
return formatCElementMessage((ICElement) elem);
} else if (elem instanceof IResource) {
return formatResourceMessage((IResource) elem);
}
}
return ""; //$NON-NLS-1$
}
private String formatCElementMessage(ICElement element) {
return CElementLabels.getElementLabel(element, LABEL_FLAGS);
}
private String formatResourceMessage(IResource element) {
IContainer parent= element.getParent();
if (parent != null && parent.getType() != IResource.ROOT)
return element.getName() + CElementLabels.CONCAT_STRING + parent.getFullPath().makeRelative().toString();
return element.getName();
}
}