content: /*
   * Created on Oct 21, 2008
   *
   * 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 @2008-2013 the original author or authors.
   */
  package org.fest.swing.driver;
  
  import java.awt.Component;
  
  import javax.annotation.Nullable;
  
  import org.fest.swing.annotation.RunsInCurrentThread;
  
  /**
   * <p>
   * Reads the value of an AWT or Swing {@code Component} that used as a cell renderer.
   * </p>
   *
   * @author Alex Ruiz
   */
  public interface CellRendererReader {
    /**
     * <p>
     * Reads the value in the given cell renderer {@code Component}, or returns {@code null} if the component is not
     * recognized by this reader.
     * </p>
     *
     * <p>
     * <b>Note:</b> This method is accessed in the current executing thread. Such thread may or may not be the event
     * dispatch thread (EDT.) Client code must call this method from the EDT.
     * </p>
     *
     * @param c the given cell renderer component.
     * @return the value of the given {@code Component}, or {@code null} if the renderer belongs to an unknown component
     *         type.
     */
    @RunsInCurrentThread
    @Nullable String valueFrom(@Nullable Component c);
  }
  