plugins/org.eclipse.egf.model.edit/src/org/eclipse/egf/model/pattern/provider/PatternCustomItemProvider.java

/**
 * Copyright (c) 2009-2010 Thales Corporate Services S.A.S.
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 * Contributors:
 * Thales Corporate Services S.A.S - initial API and implementation
 */
package org.eclipse.egf.model.pattern.provider;

import org.eclipse.egf.common.helper.EMFHelper;
import org.eclipse.egf.model.pattern.Pattern;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IItemLabelProvider;

/**
 * This is the item provider adapter for a {@link org.eclipse.egf.model.pattern.Pattern} object.
 */
public class PatternCustomItemProvider extends PatternItemProvider {

    /**
     * This constructs an instance from a factory and a notifier.
     */
    public PatternCustomItemProvider(AdapterFactory adapterFactory) {
        super(adapterFactory);
    }

    /**
     * This returns the label text for the adapted class.
     */
    @Override
    public String getText(Object object) {
        Pattern pattern = (Pattern) object;
        EObject root = EcoreUtil.getRootContainer(pattern, true);
        // Activity
        String activity = null;
        if (root != null) {
            IItemLabelProvider provider = (IItemLabelProvider) (((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory()).adapt(root, IItemLabelProvider.class);
            if (provider == null || pattern == root) {
                activity = EMFHelper.getText(root);
            } else {
                activity = provider.getText(root);
            }
        }
        // Library
        String library = null;
        if (pattern.getContainer() != null) {
            IItemLabelProvider provider = (IItemLabelProvider) (((ComposeableAdapterFactory) adapterFactory).getRootAdapterFactory()).adapt(pattern.getContainer(), IItemLabelProvider.class);
            if (provider == null) {
                library = EMFHelper.getText(pattern.getContainer());
            } else {
                library = provider.getText(pattern.getContainer());
            }
        }
        // Name
        String name = pattern.getName();
        // Build label
        StringBuilder label = new StringBuilder();
        if (name != null && name.trim().length() != 0) {
            label.append(name.trim());
        }
        if (library != null && library.trim().length() != 0) {
            label.append(" <- ").append(library.trim()); //$NON-NLS-1$
        }
        if (activity != null && activity.trim().length() != 0) {
            label.append(" <- ").append(activity.trim()); //$NON-NLS-1$
        }
        if (label.length() > 0) {
            label.append(" "); //$NON-NLS-1$
        }
        label.append("[").append(getString("_UI_Pattern_type")).append("]"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        return label.toString();
    }

}