Ellipse.java

/**
 * Copyright (c) 2004-2025 Carnegie Mellon University and others. (see Contributors file).
 * All Rights Reserved.
 *
 * NO WARRANTY. ALL MATERIAL IS FURNISHED ON AN "AS-IS" BASIS. CARNEGIE MELLON UNIVERSITY MAKES NO WARRANTIES OF ANY
 * KIND, EITHER EXPRESSED OR IMPLIED, AS TO ANY MATTER INCLUDING, BUT NOT LIMITED TO, WARRANTY OF FITNESS FOR PURPOSE
 * OR MERCHANTABILITY, EXCLUSIVITY, OR RESULTS OBTAINED FROM USE OF THE MATERIAL. CARNEGIE MELLON UNIVERSITY DOES NOT
 * MAKE ANY WARRANTY OF ANY KIND WITH RESPECT TO FREEDOM FROM PATENT, TRADEMARK, OR COPYRIGHT INFRINGEMENT.
 *
 * This program and the accompanying materials are made available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 * SPDX-License-Identifier: EPL-2.0
 *
 * Created, in part, with funding and support from the United States Government. (see Acknowledgments file).
 *
 * This program includes and/or can make use of certain third party source code, object code, documentation and other
 * files ("Third Party Software"). The Third Party Software that is used by this program is dependent upon your system
 * configuration. By using this program, You agree to comply with any and all relevant Third Party Software terms and
 * conditions contained in any such Third Party Software or separate license file distributed with such Third Party
 * Software. The parties who own the Third Party Software ("Third Party Licensors") are intended third party benefici-
 * aries to this license with respect to the terms applicable to their Third Party Software. Third Party Software li-
 * censes only apply to the Third Party Software and not any other portion of this program or this program as a whole.
 */
package org.osate.ge.graphics.internal;

import java.util.Optional;

import org.osate.ge.graphics.Dimension;

/**
 * Ellipse graphic
 */
public class Ellipse implements AgeShape {
	private final Dimension fixedSize;

	/**
	 * Creates a new instance with an optional fixed size. If a fixed size is specified, the graphic will not be resizable.
	 * @param fixedSize the size of the graphic. May be null to indicate that the graphic does not have a fixed size.
	 */
	public Ellipse(final Dimension fixedSize) {
		this.fixedSize = fixedSize;
	}

	@Override
	public final boolean isResizeable() {
		return fixedSize == null;
	}

	/**
	 * Returns the fixed size of the graphic.
	 * @return the fixed size of the graphic. An empty value indicates the graphic does not have a fixed size.
	 */
	public final Optional<Dimension> getFixedSize() {
		return Optional.ofNullable(fixedSize);
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((fixedSize == null) ? 0 : fixedSize.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		Ellipse other = (Ellipse) obj;
		if (fixedSize == null) {
			if (other.fixedSize != null) {
				return false;
			}
		} else if (!fixedSize.equals(other.fixedSize)) {
			return false;
		}
		return true;
	}
}