com.lowagie.rups.io.FileChooserAction Maven / Gradle / Ivy
/*
* $Id: FileChooserAction.java 3117 2008-01-31 05:53:22Z xlv $
*
* Copyright 2007 Bruno Lowagie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.lowagie.rups.io;
import java.awt.event.ActionEvent;
import java.io.File;
import java.util.Observable;
import javax.swing.AbstractAction;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
/**
* Allows you to browse the file system and forwards the file
* to the object that is waiting for you to choose a file.
*/
public class FileChooserAction extends AbstractAction {
/** An object that is expecting the result of the file chooser action. */
protected Observable observable;
/** A file filter to apply when browsing for a file. */
protected FileFilter filter;
/** Indicates if you're browsing to create a new or an existing file. */
protected boolean newFile;
/** The file that was chosen. */
protected File file;
/**
* Creates a new file chooser action.
* @param observable the object waiting for you to select file
* @param caption a description for the action
* @param filter a filter to apply when browsing
* @param newFile indicates if you should browse for a new or existing file
*/
public FileChooserAction(Observable observable, String caption, FileFilter filter, boolean newFile) {
super(caption);
this.observable = observable;
this.filter = filter;
this.newFile = newFile;
}
/**
* Getter for the file.
*/
public File getFile() {
return file;
}
/**
* @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
*/
public void actionPerformed(ActionEvent evt) {
JFileChooser fc = new JFileChooser();
if (filter != null) {
fc.setFileFilter(filter);
}
int okCancel;
if (newFile) {
okCancel = fc.showSaveDialog(null);
}
else {
okCancel = fc.showOpenDialog(null);
}
if (okCancel == JFileChooser.APPROVE_OPTION) {
file = fc.getSelectedFile();
observable.notifyObservers(this);
}
}
/** A serial version UID. */
private static final long serialVersionUID = 2225830878098387118L;
}