| /******************************************************************************* |
| * Copyright (c) 2003, 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.ui.internal.activities.ws; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| 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.viewers.LabelProvider; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.activities.IActivity; |
| import org.eclipse.ui.activities.ICategory; |
| import org.eclipse.ui.activities.NotDefinedException; |
| |
| /** |
| * Provides labels for elements drawn from <code>IActivityManagers</code>. |
| * Ie: <code>IActivity</code> and <code>ICategory</code> objects. |
| * |
| * @since 3.0 |
| */ |
| public class ActivityCategoryLabelProvider extends LabelProvider { |
| |
| private LocalResourceManager manager; |
| private Map descriptorMap = new HashMap(); |
| |
| /** |
| * Create a new instance of this class. |
| */ |
| public ActivityCategoryLabelProvider() { |
| manager = new LocalResourceManager(JFaceResources.getResources()); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object) |
| */ |
| public Image getImage(Object element) { |
| try { |
| ImageDescriptor descriptor = getDescriptor(element); |
| if (descriptor != null) { |
| return manager.createImage(descriptor); |
| } |
| } |
| catch (DeviceResourceException e) { |
| //ignore |
| } |
| return null; |
| } |
| |
| private ImageDescriptor getDescriptor(Object element) { |
| ImageDescriptor descriptor = (ImageDescriptor) descriptorMap.get(element); |
| if (descriptor != null) { |
| return descriptor; |
| } |
| |
| if (element instanceof ICategory) { |
| ICategory category = (ICategory) element; |
| descriptor = PlatformUI.getWorkbench().getActivitySupport() |
| .getImageDescriptor(category); |
| if (descriptor != null) { |
| descriptorMap.put(element, descriptor); |
| } |
| } else if (element instanceof IActivity) { |
| IActivity activity = (IActivity) element; |
| descriptor = PlatformUI.getWorkbench().getActivitySupport() |
| .getImageDescriptor(activity); |
| if (descriptor != null) { |
| descriptorMap.put(element, descriptor); |
| } |
| } |
| return descriptor; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object) |
| */ |
| public String getText(Object element) { |
| if (element instanceof IActivity) { |
| IActivity activity = (IActivity) element; |
| try { |
| return activity.getName(); |
| } catch (NotDefinedException e) { |
| return activity.getId(); |
| } |
| } else if (element instanceof ICategory) { |
| ICategory category = ((ICategory) element); |
| try { |
| return category.getName(); |
| } catch (NotDefinedException e) { |
| return category.getId(); |
| } |
| } |
| return super.getText(element); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() |
| */ |
| public void dispose() { |
| manager.dispose(); |
| descriptorMap.clear(); |
| } |
| } |