/*******************************************************************************
* Copyright (c) 2004, 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.wst.css.ui.views.contentoutline;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSModel;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.eclipse.wst.sse.ui.internal.contentoutline.IJFaceNodeAdapter;
class JFaceNodeLabelProviderCSS extends LabelProvider {
/**
* JFaceNodeLabelProvider constructor comment.
*/
public JFaceNodeLabelProviderCSS() {
super();
}
/**
* Returns the JFace adapter for the specified object.
*
* @param adaptable
* java.lang.Object The object to get the adapter for
*/
private IJFaceNodeAdapter getAdapter(Object adaptable) {
IJFaceNodeAdapter adapter = null;
if (adaptable instanceof ICSSModel) {
adaptable = ((ICSSModel) adaptable).getDocument();
}
if (adaptable instanceof INodeNotifier) {
INodeAdapter nodeAdapter = ((INodeNotifier) adaptable).getAdapterFor(IJFaceNodeAdapter.class);
if (nodeAdapter instanceof IJFaceNodeAdapter)
adapter = (IJFaceNodeAdapter) nodeAdapter;
}
return adapter;
}
/**
* Returns the image for the label of the given element, for use in the
* given viewer.
*
* @param viewer
* The viewer that displays the element.
* @param element
* The element for which to provide the label image. Element
* can be <code>null</code> indicating no input object is set
* to the viewer.
*/
public Image getImage(Object element) {
Image image = null;
IJFaceNodeAdapter adapter = getAdapter(element);
if (adapter != null)
image = adapter.getLabelImage(element);
return image;
}
/**
* Returns the text for the label of the given element, for use in the
* given viewer.
*
* @param viewer
* The viewer that displays the element.
* @param element
* The element for which to provide the label text. Element can
* be <code>null</code> indicating no input object is set to
* the viewer.
*/
public String getText(Object element) {
String text = null;
IJFaceNodeAdapter adapter = getAdapter(element);
if (adapter != null) {
text = adapter.getLabelText(element);
}
return text;
}
/**
* Checks whether this label provider is affected by the given domain
* event.
*
* @deprecated
*/
public boolean isAffected(Object dummy) {// DomainEvent event) {
// return event.isModifier(DomainEvent.NON_STRUCTURE_CHANGE);
return true;
}
/**
* Returns whether the label would be affected by a change to the given
* property of the given element. This can be used to optimize a
* non-structural viewer update. If the property mentioned in the update
* does not affect the label, then the viewer need not update the label.
*
* @param element
* the element
* @param property
* the property
* @return <code>true</code> if the label would be affected, and
* <code>false</code> if it would be unaffected
*/
public boolean isLabelProperty(Object element, String property) {
return false;
}
}