/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * 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:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.browsing.ui.swt;

import java.util.Map;

import org.eclipse.jface.resource.ImageDescriptor;
import org.simantics.browsing.ui.BuiltinKeys.ImagerKey;
import org.simantics.browsing.ui.NodeContext;
import org.simantics.browsing.ui.PrimitiveQueryUpdater;
import org.simantics.browsing.ui.common.imagers.ContainerImager;
import org.simantics.browsing.ui.content.Imager;
import org.simantics.browsing.ui.content.ImagerFactory;

/**
 * A basic {@link ImagerFactory} that provides a constant set of images. The
 * images are keyed by columns. This factory never updates images.
 * 
 * @author Tuukka Lehtonen
 */
public class ConstantImagerFactory implements ImagerFactory {

    private final Imager imager;

    public ConstantImagerFactory(Map<String, ImageDescriptor> constants) {
        this.imager = new ContainerImager<ImageDescriptor>(constants);
    }

    public ConstantImagerFactory(Imager imager) {
        this.imager = imager;
    }

    @Override
    public Imager create(final PrimitiveQueryUpdater updater, final NodeContext context, final ImagerKey key) {
        return imager;
    }

}