StsToolSheetLabelProvider.java

/*
* StsToolSheetLabelProvider.java
*
* This file is part of the STS-Tool project.
* Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved.
*
* Is strictly forbidden to remove this copyright notice from this source code.
*
* Disclaimer of Warranty:
* STS-Tool (this software) is provided "as-is" and without warranty of any kind, 
* express, implied or otherwise, including without limitation, any warranty of 
* merchantability or fitness for a particular purpose.
* In no event shall the copyright holder or contributors be liable for any direct,
* indirect, incidental, special, exemplary, or consequential damages
* including, but not limited to, procurement of substitute goods or services;
* loss of use, data, or profits; or business interruption) however caused and on
* any theory of liability, whether in contract, strict liability, or tort (including
* negligence or otherwise) arising in any way out of the use of this software, even 
* if advised of the possibility of such damage.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 
* "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE
* WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
*
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://www.sts-tool.eu/License.php
*
* For more information, please contact STS-Tool group at this
* address: ststool@disi.unitn.it
*
*/
package eu.aniketos.wp1.ststool.diagram.sheet;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.graphics.Image;
import eu.aniketos.wp1.ststool.diagram.part.StsToolVisualIDRegistry;
import eu.aniketos.wp1.ststool.diagram.providers.StsToolElementTypes;

/**
 * @generated
 */
public class StsToolSheetLabelProvider extends BaseLabelProvider implements ILabelProvider {

	/**
	 * @generated
	 */
	public String getText(Object element){
		element = unwrap(element);
		IElementType etype = getElementType(getView(element));
		return etype == null ? "" : etype.getDisplayName();
	}

	/**
	 * @generated
	 */
	public Image getImage(Object element){
		IElementType etype = getElementType(getView(unwrap(element)));
		return etype == null ? null : StsToolElementTypes.getImage(etype);
	}

	/**
	 * @generated
	 */
	private Object unwrap(Object element){
		if (element instanceof IStructuredSelection) { return ((IStructuredSelection) element).getFirstElement(); }
		return element;
	}

	/**
	 * @generated
	 */
	private View getView(Object element){
		if (element instanceof View) { return (View) element; }
		if (element instanceof IAdaptable) { return (View) ((IAdaptable) element).getAdapter(View.class); }
		return null;
	}

	/**
	 * @generated
	 */
	private IElementType getElementType(View view){
		// For intermediate views climb up the containment hierarchy to find the one associated with an element type.
		while (view != null) {
			int vid = StsToolVisualIDRegistry.getVisualID(view);
			IElementType etype = StsToolElementTypes.getElementType(vid);
			if (etype != null) { return etype; }
			view = view.eContainer() instanceof View ? (View) view.eContainer() : null;
		}
		return null;
	}

}