taverna-selection-api/src/main/java/org/apache/taverna/workbench/selection/events/PerspectiveSelectionEvent.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.selection.events;

import org.apache.taverna.workbench.ui.zaria.PerspectiveSPI;

/**
 * {@link SelectionManagerEvent} for changes to the selected
 * {@linkplain PerspectiveSPI perspective}.
 * 
 * @author David Withers
 */
public class PerspectiveSelectionEvent implements SelectionManagerEvent {
	private PerspectiveSPI previouslySelectedPerspective;
	private PerspectiveSPI selectedPerspective;

	public PerspectiveSelectionEvent(
			PerspectiveSPI previouslySelectedPerspective,
			PerspectiveSPI selectedPerspective) {
		this.previouslySelectedPerspective = previouslySelectedPerspective;
		this.selectedPerspective = selectedPerspective;
	}

	/**
	 * Returns the previously selected Perspective.
	 * 
	 * @return the previously selected Perspective
	 */
	public PerspectiveSPI getPreviouslySelectedPerspective() {
		return previouslySelectedPerspective;
	}

	/**
	 * Returns the currently selected Perspective.
	 * 
	 * @return the currently selected Perspective
	 */
	public PerspectiveSPI getSelectedPerspective() {
		return selectedPerspective;
	}
}