/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project 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 or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.swing.file;
import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.File;
import java.util.Iterator;
import java.util.LinkedList;
import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTree;
import javax.swing.LayoutStyle;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeSelectionModel;
import org.smallmind.nutsnbolts.util.WeakEventListenerList;
import org.smallmind.swing.tree.TreeModel;
public class DirectoryChooserPanel extends JPanel implements ActionListener, ItemListener, TreeSelectionListener, DocumentListener {
private static final GridBagLayout GRID_BAG_LAYOUT = new GridBagLayout();
private static final Dimension PREFERRED_DIMENSION = new Dimension(300, 500);
private WeakEventListenerList<DirectoryChoiceListener> listenerList = new WeakEventListenerList<DirectoryChoiceListener>();
private JTree directoryTree;
private JTextField directoryTextField;
private JButton cancelButton;
private JButton selectButton;
public DirectoryChooserPanel () {
super(GRID_BAG_LAYOUT);
GroupLayout layout;
JScrollPane directoryTreeScrollPane;
JComboBox rootComboBox;
JLabel rootLabel;
JLabel directoryLabel;
LinkedList<File> rootList;
setLayout(layout = new GroupLayout(this));
rootList = new LinkedList<File>();
for (File root : File.listRoots()) {
if (root.isDirectory()) {
rootList.add(root);
}
}
rootLabel = new JLabel("Root:");
directoryLabel = new JLabel("Directory:");
rootComboBox = new JComboBox(rootList.toArray());
rootComboBox.setEditable(false);
rootComboBox.setRenderer(new RootListCellRenderer());
selectButton = new JButton("Select");
selectButton.setFocusable(false);
selectButton.addActionListener(this);
cancelButton = new JButton("Cancel");
cancelButton.setFocusable(false);
cancelButton.addActionListener(this);
directoryTree = new JTree();
setRoot((File)rootComboBox.getSelectedItem());
directoryTree.setEditable(false);
directoryTree.setRootVisible(true);
directoryTree.setShowsRootHandles(true);
directoryTree.setScrollsOnExpand(false);
directoryTree.setCellRenderer(new DirectoryTreeCellRenderer());
directoryTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
directoryTreeScrollPane = new JScrollPane(directoryTree);
directoryTextField = new JTextField();
layout.setAutoCreateContainerGaps(true);
layout.setHorizontalGroup(layout.createParallelGroup(GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup().addComponent(rootLabel).addPreferredGap(LayoutStyle.ComponentPlacement.RELATED).addComponent(rootComboBox))
.addComponent(directoryTreeScrollPane)
.addGroup(layout.createSequentialGroup().addComponent(directoryLabel).addPreferredGap(LayoutStyle.ComponentPlacement.RELATED).addComponent(directoryTextField))
.addGroup(layout.createSequentialGroup().addComponent(selectButton).addPreferredGap(LayoutStyle.ComponentPlacement.RELATED).addComponent(cancelButton)));
layout.setVerticalGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE).addComponent(rootLabel).addComponent(rootComboBox, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE))
.addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED).addComponent(directoryTreeScrollPane).addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE).addComponent(directoryLabel).addComponent(directoryTextField, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE, GroupLayout.PREFERRED_SIZE))
.addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED).addGroup(layout.createParallelGroup().addComponent(selectButton).addComponent(cancelButton)));
rootComboBox.addItemListener(this);
directoryTextField.getDocument().addDocumentListener(this);
directoryTree.getSelectionModel().addTreeSelectionListener(this);
}
public Dimension getPreferredSize () {
return PREFERRED_DIMENSION;
}
public synchronized void addDirectoryChoiceListener (DirectoryChoiceListener directoryChoiceListener) {
listenerList.addListener(directoryChoiceListener);
}
public synchronized void removeDirectoryChoiceListener (DirectoryChoiceListener directoryChoiceListener) {
listenerList.removeListener(directoryChoiceListener);
}
private void setRoot (File file) {
directoryTree.setModel(new TreeModel(new DirectoryNode(new Directory(file.getAbsolutePath()))));
}
private synchronized void fireDirectoryChosen (DirectoryChoiceEvent directoryChoiceEvent) {
Iterator<DirectoryChoiceListener> listenerIter = listenerList.getListeners();
while (listenerIter.hasNext()) {
listenerIter.next().directoryChosen(directoryChoiceEvent);
}
}
public void actionPerformed (ActionEvent actionEvent) {
if (actionEvent.getSource() == selectButton) {
if ((directoryTextField.getText() != null) && (directoryTextField.getText().trim().length() > 0)) {
fireDirectoryChosen(new DirectoryChoiceEvent(this, new File(directoryTextField.getText().trim())));
}
else {
fireDirectoryChosen(new DirectoryChoiceEvent(this, null));
}
}
else if (actionEvent.getSource() == cancelButton) {
fireDirectoryChosen(new DirectoryChoiceEvent(this, null));
}
}
public synchronized void itemStateChanged (ItemEvent itemEvent) {
File rootFile;
directoryTextField.setText("");
if (itemEvent.getStateChange() == ItemEvent.SELECTED) {
rootFile = (File)itemEvent.getItem();
setRoot(rootFile);
}
}
public synchronized void valueChanged (TreeSelectionEvent treeSelectionEvent) {
Directory directory;
directory = (Directory)((DirectoryNode)treeSelectionEvent.getPath().getLastPathComponent()).getUserObject();
directoryTextField.getDocument().removeDocumentListener(this);
directoryTextField.setText(directory.getAbsolutePath());
directoryTextField.getDocument().addDocumentListener(this);
}
private void shiftDirectory () {
if (directoryTree.getSelectionModel().getSelectionPath() != null) {
directoryTree.getSelectionModel().removeTreeSelectionListener(this);
directoryTree.getSelectionModel().clearSelection();
directoryTree.getSelectionModel().addTreeSelectionListener(this);
}
}
public synchronized void insertUpdate (DocumentEvent documentEvent) {
shiftDirectory();
}
public synchronized void removeUpdate (DocumentEvent documentEvent) {
shiftDirectory();
}
public synchronized void changedUpdate (DocumentEvent documentEvent) {
shiftDirectory();
}
}