/*******************************************************************************
* Copyright (c) 2000, 2007 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.ui.model;
import java.util.HashMap;
import org.eclipse.jface.resource.DeviceResourceException;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.Saveable;
import org.eclipse.ui.internal.WorkbenchPlugin;
/**
* A table label provider implementation for showing workbench views and
* editors (objects of type <code>IWorkbenchPart</code>) in tree- and
* table-structured viewers.
* <p>
* Clients may instantiate this class. It is not intended to be subclassed.
* </p>
*
* @since 3.0
*/
public final class WorkbenchPartLabelProvider extends LabelProvider implements
ITableLabelProvider {
private ResourceManager resourceManager = new LocalResourceManager(JFaceResources.getResources());
private HashMap images = new HashMap();
/**
* Creates a new label provider for workbench parts.
*/
public WorkbenchPartLabelProvider() {
super();
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ILabelProvider
*/
public final Image getImage(Object element) {
if (element instanceof IWorkbenchPart) {
return ((IWorkbenchPart) element).getTitleImage();
}
if (element instanceof Saveable) {
Saveable model = (Saveable) element;
ImageDescriptor imageDesc = model.getImageDescriptor();
// convert from ImageDescriptor to Image
if (imageDesc == null) {
return null;
}
Image image = (Image) images.get(imageDesc);
if (image == null) {
try {
image = resourceManager.createImage(imageDesc);
images.put(imageDesc, image);
}
catch (DeviceResourceException e) {
WorkbenchPlugin.log(getClass(), "getImage", e); //$NON-NLS-1$
}
}
return image;
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ILabelProvider
*/
public final String getText(Object element) {
if (element instanceof IWorkbenchPart) {
IWorkbenchPart part = (IWorkbenchPart) element;
String path = part.getTitleToolTip();
if (path == null || path.trim().length() == 0) {
return part.getTitle();
}
return part.getTitle() + " [" + path + "]"; //$NON-NLS-1$ //$NON-NLS-2$
}
if (element instanceof Saveable) {
Saveable model = (Saveable) element;
String path = model.getToolTipText();
if (path == null || path.trim().length() == 0) {
return model.getName();
}
return model.getName() + " [" + path + "]"; //$NON-NLS-1$ //$NON-NLS-2$
}
return null;
}
/**
* @see ITableLabelProvider#getColumnImage
*/
public final Image getColumnImage(Object element, int columnIndex) {
return getImage(element);
}
/**
* @see ITableLabelProvider#getColumnText
*/
public final String getColumnText(Object element, int columnIndex) {
return getText(element);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.LabelProvider#dispose()
*
* @since 3.2
*/
public void dispose() {
resourceManager.dispose();
super.dispose();
}
}