eu.geclipse.workflow.ui.sheet.WorkflowSheetLabelProvider.java Source code

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Here is the source code for eu.geclipse.workflow.ui.sheet.WorkflowSheetLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2006, 2007 g-Eclipse Consortium 
 * 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 
 * 
 * Initial development of the original code was made for the g-Eclipse project 
 * funded by European Union project number: FP6-IST-034327 
 * http://www.geclipse.eu/
 *  
 * Contributors:
 *     RUR (http://acet.rdg.ac.uk/)
 *     - Ashish Thandavan - initial API and implementation
 ******************************************************************************/
package eu.geclipse.workflow.ui.sheet;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.graphics.Image;

import eu.geclipse.workflow.ui.internal.WorkflowDiagramEditorPlugin;
import eu.geclipse.workflow.ui.navigator.WorkflowNavigatorGroup;

/**
 * @generated
 */
public class WorkflowSheetLabelProvider extends DecoratingLabelProvider {

    /**
     * @generated
     */
    public WorkflowSheetLabelProvider() {
        super(new AdapterFactoryLabelProvider(
                WorkflowDiagramEditorPlugin.getInstance().getItemProvidersAdapterFactory()), null);
    }

    /**
     * @generated
     */
    @Override
    public String getText(Object element) {
        Object selected = unwrap(element);
        if (selected instanceof WorkflowNavigatorGroup) {
            return ((WorkflowNavigatorGroup) selected).getGroupName();
        }
        return super.getText(selected);
    }

    /**
     * @generated
     */
    @Override
    public Image getImage(Object element) {
        return super.getImage(unwrap(element));
    }

    /**
     * @generated
     */
    private Object unwrap(Object element) {
        if (element instanceof IStructuredSelection) {
            return unwrap(((IStructuredSelection) element).getFirstElement());
        }
        if (element instanceof EditPart) {
            return unwrapEditPart((EditPart) element);
        }
        if (element instanceof IAdaptable) {
            View view = (View) ((IAdaptable) element).getAdapter(View.class);
            if (view != null) {
                return unwrapView(view);
            }
        }
        return element;
    }

    /**
     * @generated
     */
    private Object unwrapEditPart(EditPart p) {
        if (p.getModel() instanceof View) {
            return unwrapView((View) p.getModel());
        }
        return p.getModel();
    }

    /**
     * @generated
     */
    private Object unwrapView(View view) {
        return view.getElement() == null ? view : view.getElement();
    }
}