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1: /* ======================================================================== 2: * JCommon : a free general purpose class library for the Java(tm) platform 3: * ======================================================================== 4: * 5: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 6: * 7: * Project Info: http://www.jfree.org/jcommon/index.html 8: * 9: * This library is free software; you can redistribute it and/or modify it 10: * under the terms of the GNU Lesser General Public License as published by 11: * the Free Software Foundation; either version 2.1 of the License, or 12: * (at your option) any later version. 13: * 14: * This library is distributed in the hope that it will be useful, but 15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 17: * License for more details. 18: * 19: * You should have received a copy of the GNU Lesser General Public 20: * License along with this library; if not, write to the Free Software 21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 22: * USA. 23: * 24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 25: * in the United States and other countries.] 26: * 27: * ------------------------ 28: * ExtensionFileFilter.java 29: * ------------------------ 30: * (C) Copyright 2000-2004, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * $Id: ExtensionFileFilter.java,v 1.5 2007/11/02 17:50:36 taqua Exp $ 36: * 37: * Changes (from 26-Oct-2001) 38: * -------------------------- 39: * 26-Oct-2001 : Changed package to com.jrefinery.ui.* (DG); 40: * 26-Jun-2002 : Updated imports (DG); 41: * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG); 42: * 43: */ 44: package org.jfree.ui; 45: 46: import java.io.File; 47: import javax.swing.filechooser.FileFilter; 48: 49: /** 50: * A filter for JFileChooser that filters files by extension. 51: * 52: * @author David Gilbert 53: */ 54: public class ExtensionFileFilter extends FileFilter { 55: 56: /** A description for the file type. */ 57: private String description; 58: 59: /** The extension (for example, "png" for *.png files). */ 60: private String extension; 61: 62: /** 63: * Standard constructor. 64: * 65: * @param description a description of the file type; 66: * @param extension the file extension; 67: */ 68: public ExtensionFileFilter(final String description, final String extension) { 69: this.description = description; 70: this.extension = extension; 71: } 72: 73: /** 74: * Returns true if the file ends with the specified extension. 75: * 76: * @param file the file to test. 77: * 78: * @return A boolean that indicates whether or not the file is accepted by the filter. 79: */ 80: public boolean accept(final File file) { 81: 82: if (file.isDirectory()) { 83: return true; 84: } 85: 86: final String name = file.getName().toLowerCase(); 87: if (name.endsWith(this.extension)) { 88: return true; 89: } 90: else { 91: return false; 92: } 93: 94: } 95: 96: /** 97: * Returns the description of the filter. 98: * 99: * @return a description of the filter. 100: */ 101: public String getDescription() { 102: return this.description; 103: } 104: 105: }