taverna-activity-icons-api/src/main/java/org/apache/taverna/workbench/activityicons/DefaultActivityIcon.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.taverna.workbench.activityicons;

import java.net.URI;

import javax.swing.Icon;
import javax.swing.ImageIcon;

public class DefaultActivityIcon implements ActivityIconSPI {
	private static final String ICON_RESOURCE = "/default-activity-icon.png";

	@Override
	public int canProvideIconScore(URI activityType) {
		// For any activity we can provide a default icon
		return DEFAULT_ICON;
	}

	@Override
	public Icon getIcon(URI activityType) {
		return getDefaultIcon();
	}
	
	public static Icon getDefaultIcon() {
		return IconLoader.icon;
	}

	private static class IconLoader {
		static final Icon icon = loadDefaultIcon();

		private static Icon loadDefaultIcon() {
			return new ImageIcon(
					DefaultActivityIcon.class.getResource(ICON_RESOURCE));
		}
	}
}