ImportListLabelProvider.java

/*******************************************************************************
 * Copyright (c) 2010-2012, Zoltan Ujhelyi, Tamas Szabo, Istvan Rath and Daniel Varro
 * 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
 *
 * Contributors:
 *   Zoltan Ujhelyi, Tamas Szabo - initial API and implementation
 *******************************************************************************/

package org.eclipse.incquery.tooling.ui.wizards.internal;

import org.eclipse.emf.ecore.EPackage;
import org.eclipse.incquery.tooling.ui.IncQueryGUIPlugin;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.graphics.Image;

/**
 * {@link ILabelProvider} implementation for the {@link ImportListAdapter}.
 * 
 * @author Tamas Szabo
 * 
 */
public class ImportListLabelProvider extends StyledCellLabelProvider implements ILabelProvider {

    private ImageRegistry imageRegistry;

    public ImportListLabelProvider() {
        imageRegistry = IncQueryGUIPlugin.getDefault().getImageRegistry();
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {
        if (element instanceof EPackage) {
            return imageRegistry.get(IncQueryGUIPlugin.ICON_EPACKAGE);
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {
        if (element instanceof EPackage) {
            return ((EPackage) element).getNsURI();
        }
        return null;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.viewers.StyledCellLabelProvider#update(org.eclipse. jface.viewers.ViewerCell)
     */
    @Override
    public void update(ViewerCell cell) {
        Object element = cell.getElement();
        StyledString text = new StyledString();
        if (element instanceof EPackage) {
            EPackage ePackage = (EPackage) element;
            text.append(ePackage.getNsURI());
            if (ePackage.eResource().getURI().isPlatform()) {
                text.append(String.format(" (%s)", ePackage.eResource().getURI()), StyledString.QUALIFIER_STYLER);
            }
            cell.setImage(imageRegistry.get(IncQueryGUIPlugin.ICON_EPACKAGE));
        }
        cell.setText(text.getString());
        cell.setStyleRanges(text.getStyleRanges());
        super.update(cell);
    }

}