Dimension.java

/**
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community 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://opensource.org/licenses/ecl2.txt
 *
 * 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.opencastproject.composer.layout;

import static java.lang.String.format;
import static org.opencastproject.util.EqualsUtil.hash;

import org.opencastproject.util.RequireUtil;

/** Dimension of a rectangular shape. */
public final class Dimension {
  private final int width;
  private final int height;

  public Dimension(int width, int height) {
    this.width = RequireUtil.min(width, 0);
    this.height = RequireUtil.min(height, 0);
  }

  public static Dimension dimension(int width, int height) {
    return new Dimension(width, height);
  }

  public int getWidth() {
    return width;
  }

  public int getHeight() {
    return height;
  }

  @Override
  public boolean equals(Object that) {
    return (this == that) || (that instanceof Dimension && eqFields((Dimension) that));
  }

  private boolean eqFields(Dimension that) {
    return width == that.width && height == that.height;
  }

  @Override
  public int hashCode() {
    return hash(width, height);
  }

  @Override
  public String toString() {
    return format("Dimension(%d,%d)", width, height);
  }
}