content: /*
   * Created on Sep 21, 2007
   * 
   * Licensed 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.
   * 
   * Copyright @2007-2013 the original author or authors.
   */
  package org.fest.swing.core;
  
  import static java.awt.event.InputEvent.BUTTON1_MASK;
  import static java.awt.event.InputEvent.BUTTON2_MASK;
  import static java.awt.event.InputEvent.BUTTON3_MASK;
  
  import java.awt.event.InputEvent;
  
  import javax.annotation.Nonnull;
  
  /**
   * Mouse buttons. Provides better type safety that the {@code int} values in AWT.
   * 
   * @author Alex Ruiz
   */
  public enum MouseButton {
    LEFT_BUTTON(BUTTON1_MASK), MIDDLE_BUTTON(BUTTON2_MASK), RIGHT_BUTTON(BUTTON3_MASK);
  
    /**
     * The mouse button modifier.
     * 
     * @see InputEvent
     */
    public final int mask;
  
    private MouseButton(int mask) {
      this.mask = mask;
    }
  
    /**
     * Returns the mouse button whose mask matches the given mask. Valid values are the constants {@code BUTTON1_MASK},
     * {@code BUTTON2_MASK}, and {@code BUTTON3_MASK} in {@code java.awt.event.InputEvent}.
     * 
     * @param mask the mask of the button we are looking for.
     * @return the found button.
     * @throws IllegalArgumentException if the given mask is not a valid one.
     */
    public @Nonnull static MouseButton lookup(int mask) {
      for (MouseButton button : values()) {
        if (button.mask == mask) {
          return button;
        }
      }
      throw new IllegalArgumentException(String.format("%d is not a valid button mas", mask));
    }
  }
  