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91 lines
2.6 KiB
Java
91 lines
2.6 KiB
Java
/*
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* Copyright (C) 2009-2017 Alistair Neil <info@dazzleships.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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package lib;
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import java.io.File;
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import javax.swing.filechooser.FileFilter;
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/**
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*
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* @author Alistair Neil, <info@dazzleships.net>
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* Taken from Oracle documentation.
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*/
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public class ExtensionFileFilter extends FileFilter {
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String description;
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String extensions[];
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/**
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* Convenience constructor for a single extension
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*
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* @param description
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* @param extension
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*/
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public ExtensionFileFilter(String description, String extension) {
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this(description, new String[]{extension});
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}
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/**
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* Convenience constructor for a multiple extensions
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*
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* @param description
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* @param extensions
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*/
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public ExtensionFileFilter(String description, String extensions[]) {
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if (description == null) {
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this.description = extensions[0];
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} else {
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this.description = description;
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}
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this.extensions = extensions.clone();
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toLower(this.extensions);
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}
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private void toLower(String array[]) {
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for (int i = 0, n = array.length; i < n; i++) {
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array[i] = array[i].toLowerCase();
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}
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}
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/**
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* Get description
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*
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* @return String
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*/
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@Override
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public String getDescription() {
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return description;
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}
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@Override
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public boolean accept(File file) {
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if (file.isDirectory()) {
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return true;
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} else {
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String path = file.getAbsolutePath().toLowerCase();
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for (int i = 0, n = extensions.length; i < n; i++) {
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String extension = extensions[i];
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if ((path.endsWith(extension) && (path.charAt(path.length() - extension.length() - 1)) == '.')) {
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return true;
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}
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}
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}
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return false;
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}
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}
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