| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ltk.internal.ui.refactoring; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.viewers.IFontProvider; |
| import org.eclipse.jface.viewers.LabelProvider; |
| |
| class ChangeElementLabelProvider extends LabelProvider implements IFontProvider { |
| |
| private Map<ImageDescriptor, Image> fDescriptorImageMap= new HashMap<>(); |
| |
| public ChangeElementLabelProvider() { |
| } |
| |
| @Override |
| public Image getImage(Object object) { |
| return manageImageDescriptor(((PreviewNode)object).getImageDescriptor()); |
| } |
| |
| @Override |
| public String getText(Object object) { |
| String text= ((PreviewNode)object).getText(); |
| if (isDerived(object)) { |
| return Messages.format(RefactoringUIMessages.ChangeElementLabelProvider_derived, text); |
| } else { |
| return text; |
| } |
| } |
| |
| @Override |
| public Font getFont(Object element) { |
| if (isDerived(element)) { |
| return JFaceResources.getFontRegistry().getItalic(JFaceResources.DIALOG_FONT); |
| } else { |
| return null; |
| } |
| } |
| |
| private boolean isDerived(Object element) { |
| PreviewNode node= (PreviewNode)element; |
| return node.hasDerived(); |
| } |
| |
| @Override |
| public void dispose() { |
| for (Image image : fDescriptorImageMap.values()) { |
| image.dispose(); |
| } |
| super.dispose(); |
| } |
| |
| private Image manageImageDescriptor(ImageDescriptor descriptor) { |
| Image image= fDescriptorImageMap.get(descriptor); |
| if (image == null) { |
| image= descriptor.createImage(); |
| fDescriptorImageMap.put(descriptor, image); |
| } |
| return image; |
| } |
| } |