001 /* 002 * Created on Oct 21, 2008 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with 005 * the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on 010 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the 011 * specific language governing permissions and limitations under the License. 012 * 013 * Copyright @2008-2010 the original author or authors. 014 */ 015 package org.fest.swing.driver; 016 017 import java.awt.Component; 018 019 import javax.swing.JLabel; 020 021 import org.fest.swing.annotation.RunsInCurrentThread; 022 023 /** 024 * Understands a basic implementation of <code>{@link CellRendererReader}</code>. 025 * 026 * @author Alex Ruiz 027 */ 028 public class BasicCellRendererReader implements CellRendererReader { 029 030 /** 031 * Reads the value in the given cell renderer component, or returns <code>null</code> if the renderer belongs to an 032 * unknown component type. Internally, this method will call <code>getText()</code> if the given renderer is an 033 * instance of <code>{@link JLabel}</code></li>. 034 * <p> 035 * <b>Note:</b> This method is <b>not</b> guaranteed to be executed in the event dispatch thread (EDT.) Clients are 036 * responsible for calling this method from the EDT. 037 * </p> 038 * @param c the given cell renderer component. 039 * @return the value of the given <code>Component</code>, or <code>null</code> if the renderer belongs to an unknown 040 * component type. 041 */ 042 @RunsInCurrentThread 043 public String valueFrom(Component c) { 044 if (c instanceof JLabel) return ((JLabel)c).getText(); 045 return null; 046 } 047 }