Plex-FAWE/src/main/java/com/sk89q/worldedit/util/FileDialogUtil.java
2011-05-01 01:30:33 -07:00

93 lines
2.7 KiB
Java

// $Id$
/*
* WorldEdit
* Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.util;
import java.io.*;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
import com.sk89q.util.StringUtil;
public class FileDialogUtil {
public static File showSaveDialog(String[] exts) {
JFileChooser dialog = new JFileChooser();
if (exts != null) {
dialog.setFileFilter(new ExtensionFilter(exts));
}
int returnVal = dialog.showSaveDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
return dialog.getSelectedFile();
}
return null;
}
public static File showOpenDialog(String[] exts) {
JFileChooser dialog = new JFileChooser();
if (exts != null) {
dialog.setFileFilter(new ExtensionFilter(exts));
}
int returnVal = dialog.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
return dialog.getSelectedFile();
}
return null;
}
private static class ExtensionFilter extends FileFilter {
private Set<String> exts;
private String desc;
public ExtensionFilter(String[] exts) {
this.exts = new HashSet<String>(Arrays.asList(exts));
desc = StringUtil.joinString(exts, ",");
}
@Override
public boolean accept(File f) {
if (f.isDirectory()) {
return true;
}
String path = f.getPath();
int index = path.lastIndexOf('.');
if (index == -1 || index == path.length() - 1) {
return false;
} else {
return exts.contains(path.indexOf(index + 1));
}
}
@Override
public String getDescription() {
return desc;
}
}
}