| /******************************************************************************** |
| * Copyright (c) 2011 Eike Stepper (Berlin, Germany) and others. |
| * |
| * All rights reserved. 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.ecp.internal.ui.model; |
| |
| import org.eclipse.emf.ecp.core.util.ECPContainer; |
| import org.eclipse.emf.ecp.core.util.ECPModelContextProvider; |
| import org.eclipse.emf.ecp.internal.ui.Activator; |
| import org.eclipse.emf.ecp.internal.ui.model.TreeContentProvider.ErrorElement; |
| import org.eclipse.emf.ecp.internal.ui.model.TreeContentProvider.SlowElement; |
| import org.eclipse.emf.ecp.spi.ui.UIProvider; |
| import org.eclipse.emf.ecp.spi.ui.UIProviderRegistry; |
| import org.eclipse.jface.viewers.LabelProvider; |
| import org.eclipse.jface.viewers.LabelProviderChangedEvent; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class ECPLabelProvider extends LabelProvider implements ECPModelContextProvider, IECPLabelProvider { |
| private ECPModelContextProvider modelContextProvider; |
| |
| public ECPLabelProvider(ECPModelContextProvider modelContextProvider) { |
| this.modelContextProvider = modelContextProvider; |
| } |
| |
| @Override |
| public String getText(Object element) { |
| final UIProvider uiProvider = getUIProvider(element); |
| if (uiProvider != null) { |
| final String text = uiProvider.getText(element); |
| if (text != null) { |
| return text; |
| } |
| } |
| |
| return super.getText(element); |
| } |
| |
| @Override |
| public Image getImage(Object element) { |
| if (element instanceof SlowElement) { |
| return Activator.getImage("icons/pending.gif"); //$NON-NLS-1$ |
| } |
| |
| if (element instanceof ErrorElement) { |
| return Activator.getImage("icons/error.gif"); //$NON-NLS-1$ |
| } |
| |
| final UIProvider uiProvider = getUIProvider(element); |
| if (uiProvider != null) { |
| final Image image = uiProvider.getImage(element); |
| if (image != null) { |
| return image; |
| } |
| } |
| |
| return super.getImage(element); |
| } |
| |
| public UIProvider getUIProvider(Object element) { |
| UIProvider uiProvider = UIProviderRegistry.INSTANCE.getUIProvider(element); |
| if (uiProvider == null) { |
| final ECPContainer modelContext = getModelContext(element); |
| if (modelContext != null) { |
| uiProvider = UIProviderRegistry.INSTANCE.getUIProvider(modelContext); |
| } |
| } |
| |
| return uiProvider; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public ECPContainer getModelContext(Object element) { |
| if (modelContextProvider != null) { |
| return modelContextProvider.getModelContext(element); |
| } |
| |
| return null; |
| } |
| |
| protected final void fireEvent(final LabelProviderChangedEvent event) { |
| final Display display = Display.getCurrent(); |
| if (display == null) { |
| Display.getDefault().asyncExec(new Runnable() { |
| @Override |
| public void run() { |
| fireLabelProviderChanged(event); |
| } |
| }); |
| } else { |
| fireLabelProviderChanged(event); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.internal.ui.model.IECPLabelProvider#getModelContextProvider() |
| */ |
| @Override |
| public ECPModelContextProvider getModelContextProvider() { |
| return modelContextProvider; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.internal.ui.model.IECPLabelProvider#setModelContextProvider(org.eclipse.emf.ecp.core.util.ECPModelContextProvider) |
| */ |
| @Override |
| public void setModelContextProvider(ECPModelContextProvider modelContextProvider) { |
| this.modelContextProvider = modelContextProvider; |
| } |
| } |