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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 1.4 2005/11/16 15:58:41 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: 48: import javax.swing.filechooser.FileFilter; 49: 50: /** 51: * A filter for JFileChooser that filters files by extension. 52: * 53: * @author David Gilbert 54: */ 55: public class ExtensionFileFilter extends FileFilter { 56: 57: /** A description for the file type. */ 58: private String description; 59: 60: /** The extension (for example, "png" for *.png files). */ 61: private String extension; 62: 63: /** 64: * Standard constructor. 65: * 66: * @param description a description of the file type; 67: * @param extension the file extension; 68: */ 69: public ExtensionFileFilter(final String description, final String extension) { 70: this.description = description; 71: this.extension = extension; 72: } 73: 74: /** 75: * Returns true if the file ends with the specified extension. 76: * 77: * @param file the file to test. 78: * 79: * @return A boolean that indicates whether or not the file is accepted by the filter. 80: */ 81: public boolean accept(final File file) { 82: 83: if (file.isDirectory()) { 84: return true; 85: } 86: 87: final String name = file.getName().toLowerCase(); 88: if (name.endsWith(this.extension)) { 89: return true; 90: } 91: else { 92: return false; 93: } 94: 95: } 96: 97: /** 98: * Returns the description of the filter. 99: * 100: * @return a description of the filter. 101: */ 102: public String getDescription() { 103: return this.description; 104: } 105: 106: }