Back to index...

	/*
	* Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package javax.swing.plaf.metal;

	import javax.swing.*;
	import javax.swing.border.EmptyBorder;
	import javax.swing.filechooser.*;
	import javax.swing.event.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.*;
	import java.awt.*;
	import java.awt.event.*;
	import java.beans.*;
	import java.io.File;
	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.util.*;
	import java.security.AccessController;
	import java.security.PrivilegedAction;
	import javax.accessibility.*;

	import sun.awt.shell.ShellFolder;
	import sun.swing.*;

	/**
	* Metal L&F implementation of a FileChooser.
	*
	* @author Jeff Dinkins
	*/
	public class MetalFileChooserUI extends BasicFileChooserUI {

	// Much of the Metal UI for JFilechooser is just a copy of
	// the windows implementation, but using Metal themed buttons, lists,
	// icons, etc. We are planning a complete rewrite, and hence we've
	// made most things in this class private.

	private JLabel lookInLabel;
	private JComboBox directoryComboBox;
	private DirectoryComboBoxModel directoryComboBoxModel;
	private Action directoryComboBoxAction = new DirectoryComboBoxAction();

	private FilterComboBoxModel filterComboBoxModel;

	private JTextField fileNameTextField;

	private FilePane filePane;
	private JToggleButton listViewButton;
	private JToggleButton detailsViewButton;

	private JButton approveButton;
	private JButton cancelButton;

	private JPanel buttonPanel;
	private JPanel bottomPanel;

	private JComboBox filterComboBox;

	private static final Dimension hstrut5 = new Dimension(5, 1);
	private static final Dimension hstrut11 = new Dimension(11, 1);

	private static final Dimension vstrut5 = new Dimension(1, 5);

	private static final Insets shrinkwrap = new Insets(0,0,0,0);

	// Preferred and Minimum sizes for the dialog box
	private static int PREF_WIDTH = 500;
	private static int PREF_HEIGHT = 326;
	private static Dimension PREF_SIZE = new Dimension(PREF_WIDTH, PREF_HEIGHT);

	private static int MIN_WIDTH = 500;
	private static int MIN_HEIGHT = 326;
	private static int LIST_PREF_WIDTH = 405;
	private static int LIST_PREF_HEIGHT = 135;
	private static Dimension LIST_PREF_SIZE = new Dimension(LIST_PREF_WIDTH, LIST_PREF_HEIGHT);

	// Labels, mnemonics, and tooltips (oh my!)
	private int lookInLabelMnemonic = 0;
	private String lookInLabelText = null;
	private String saveInLabelText = null;

	private int fileNameLabelMnemonic = 0;
	private String fileNameLabelText = null;
	private int folderNameLabelMnemonic = 0;
	private String folderNameLabelText = null;

	private int filesOfTypeLabelMnemonic = 0;
	private String filesOfTypeLabelText = null;

	private String upFolderToolTipText = null;
	private String upFolderAccessibleName = null;

	private String homeFolderToolTipText = null;
	private String homeFolderAccessibleName = null;

	private String newFolderToolTipText = null;
	private String newFolderAccessibleName = null;

	private String listViewButtonToolTipText = null;
	private String listViewButtonAccessibleName = null;

	private String detailsViewButtonToolTipText = null;
	private String detailsViewButtonAccessibleName = null;

	private AlignedLabel fileNameLabel;

	private void populateFileNameLabel() {
	if (getFileChooser().getFileSelectionMode() == JFileChooser.DIRECTORIES_ONLY) {
	fileNameLabel.setText(folderNameLabelText);
	fileNameLabel.setDisplayedMnemonic(folderNameLabelMnemonic);
	} else {
	fileNameLabel.setText(fileNameLabelText);
	fileNameLabel.setDisplayedMnemonic(fileNameLabelMnemonic);
	}
	}

	//
	// ComponentUI Interface Implementation methods
	//
	public static ComponentUI createUI(JComponent c) {
	return new MetalFileChooserUI((JFileChooser) c);
	}

	public MetalFileChooserUI(JFileChooser filechooser) {
	super(filechooser);
	}

	public void installUI(JComponent c) {
	super.installUI(c);
	}

	public void uninstallComponents(JFileChooser fc) {
	fc.removeAll();
	bottomPanel = null;
	buttonPanel = null;
	}

	private class MetalFileChooserUIAccessor implements FilePane.FileChooserUIAccessor {
	public JFileChooser getFileChooser() {
	return MetalFileChooserUI.this.getFileChooser();
	}

	public BasicDirectoryModel getModel() {
	return MetalFileChooserUI.this.getModel();
	}

	public JPanel createList() {
	return MetalFileChooserUI.this.createList(getFileChooser());
	}

	public JPanel createDetailsView() {
	return MetalFileChooserUI.this.createDetailsView(getFileChooser());
	}

	public boolean isDirectorySelected() {
	return MetalFileChooserUI.this.isDirectorySelected();
	}

	public File getDirectory() {
	return MetalFileChooserUI.this.getDirectory();
	}

	public Action getChangeToParentDirectoryAction() {
	return MetalFileChooserUI.this.getChangeToParentDirectoryAction();
	}

	public Action getApproveSelectionAction() {
	return MetalFileChooserUI.this.getApproveSelectionAction();
	}

	public Action getNewFolderAction() {
	return MetalFileChooserUI.this.getNewFolderAction();
	}

	public MouseListener createDoubleClickListener(JList list) {
	return MetalFileChooserUI.this.createDoubleClickListener(getFileChooser(),
	list);
	}

	public ListSelectionListener createListSelectionListener() {
	return MetalFileChooserUI.this.createListSelectionListener(getFileChooser());
	}
	}

	public void installComponents(JFileChooser fc) {
	FileSystemView fsv = fc.getFileSystemView();

	fc.setBorder(new EmptyBorder(12, 12, 11, 11));
	fc.setLayout(new BorderLayout(0, 11));

	filePane = new FilePane(new MetalFileChooserUIAccessor());
	fc.addPropertyChangeListener(filePane);

	// ********************************* //
	// ** Construct the top panel ** //
	// ********************************* //

	// Directory manipulation buttons
	JPanel topPanel = new JPanel(new BorderLayout(11, 0));
	JPanel topButtonPanel = new JPanel();
	topButtonPanel.setLayout(new BoxLayout(topButtonPanel, BoxLayout.LINE_AXIS));
	topPanel.add(topButtonPanel, BorderLayout.AFTER_LINE_ENDS);

	// Add the top panel to the fileChooser
	fc.add(topPanel, BorderLayout.NORTH);

	// ComboBox Label
	lookInLabel = new JLabel(lookInLabelText);
	lookInLabel.setDisplayedMnemonic(lookInLabelMnemonic);
	topPanel.add(lookInLabel, BorderLayout.BEFORE_LINE_BEGINS);

	// CurrentDir ComboBox
	directoryComboBox = new JComboBox() {
	public Dimension getPreferredSize() {
	Dimension d = super.getPreferredSize();
	// Must be small enough to not affect total width.
	d.width = 150;
	return d;
	}
	};
	directoryComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY,
	lookInLabelText);
	directoryComboBox.putClientProperty( "JComboBox.isTableCellEditor", Boolean.TRUE );
	lookInLabel.setLabelFor(directoryComboBox);
	directoryComboBoxModel = createDirectoryComboBoxModel(fc);
	directoryComboBox.setModel(directoryComboBoxModel);
	directoryComboBox.addActionListener(directoryComboBoxAction);
	directoryComboBox.setRenderer(createDirectoryComboBoxRenderer(fc));
	directoryComboBox.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	directoryComboBox.setAlignmentY(JComponent.TOP_ALIGNMENT);
	directoryComboBox.setMaximumRowCount(8);

	topPanel.add(directoryComboBox, BorderLayout.CENTER);

	// Up Button
	JButton upFolderButton = new JButton(getChangeToParentDirectoryAction());
	upFolderButton.setText(null);
	upFolderButton.setIcon(upFolderIcon);
	upFolderButton.setToolTipText(upFolderToolTipText);
	upFolderButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	upFolderAccessibleName);
	upFolderButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	upFolderButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);
	upFolderButton.setMargin(shrinkwrap);

	topButtonPanel.add(upFolderButton);
	topButtonPanel.add(Box.createRigidArea(hstrut5));

	// Home Button
	File homeDir = fsv.getHomeDirectory();
	String toolTipText = homeFolderToolTipText;


	JButton b = new JButton(homeFolderIcon);
	b.setToolTipText(toolTipText);
	b.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	homeFolderAccessibleName);
	b.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	b.setAlignmentY(JComponent.CENTER_ALIGNMENT);
	b.setMargin(shrinkwrap);

	b.addActionListener(getGoHomeAction());
	topButtonPanel.add(b);
	topButtonPanel.add(Box.createRigidArea(hstrut5));

	// New Directory Button
	if (!UIManager.getBoolean("FileChooser.readOnly")) {
	b = new JButton(filePane.getNewFolderAction());
	b.setText(null);
	b.setIcon(newFolderIcon);
	b.setToolTipText(newFolderToolTipText);
	b.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	newFolderAccessibleName);
	b.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	b.setAlignmentY(JComponent.CENTER_ALIGNMENT);
	b.setMargin(shrinkwrap);
	}
	topButtonPanel.add(b);
	topButtonPanel.add(Box.createRigidArea(hstrut5));

	// View button group
	ButtonGroup viewButtonGroup = new ButtonGroup();

	// List Button
	listViewButton = new JToggleButton(listViewIcon);
	listViewButton.setToolTipText(listViewButtonToolTipText);
	listViewButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	listViewButtonAccessibleName);
	listViewButton.setSelected(true);
	listViewButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	listViewButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);
	listViewButton.setMargin(shrinkwrap);
	listViewButton.addActionListener(filePane.getViewTypeAction(FilePane.VIEWTYPE_LIST));
	topButtonPanel.add(listViewButton);
	viewButtonGroup.add(listViewButton);

	// Details Button
	detailsViewButton = new JToggleButton(detailsViewIcon);
	detailsViewButton.setToolTipText(detailsViewButtonToolTipText);
	detailsViewButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	detailsViewButtonAccessibleName);
	detailsViewButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	detailsViewButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);
	detailsViewButton.setMargin(shrinkwrap);
	detailsViewButton.addActionListener(filePane.getViewTypeAction(FilePane.VIEWTYPE_DETAILS));
	topButtonPanel.add(detailsViewButton);
	viewButtonGroup.add(detailsViewButton);

	filePane.addPropertyChangeListener(new PropertyChangeListener() {
	public void propertyChange(PropertyChangeEvent e) {
	if ("viewType".equals(e.getPropertyName())) {
	int viewType = filePane.getViewType();
	switch (viewType) {
	case FilePane.VIEWTYPE_LIST:
	listViewButton.setSelected(true);
	break;

	case FilePane.VIEWTYPE_DETAILS:
	detailsViewButton.setSelected(true);
	break;
	}
	}
	}
	});

	// ************************************** //
	// ***** Add the directory pane ***** //
	// ************************************** //
	fc.add(getAccessoryPanel(), BorderLayout.AFTER_LINE_ENDS);
	JComponent accessory = fc.getAccessory();
	if(accessory != null) {
	getAccessoryPanel().add(accessory);
	}
	filePane.setPreferredSize(LIST_PREF_SIZE);
	fc.add(filePane, BorderLayout.CENTER);

	// ********************************** //
	// ** Construct the bottom panel //
	// ********************************** //
	JPanel bottomPanel = getBottomPanel();
	bottomPanel.setLayout(new BoxLayout(bottomPanel, BoxLayout.Y_AXIS));
	fc.add(bottomPanel, BorderLayout.SOUTH);

	// FileName label and textfield
	JPanel fileNamePanel = new JPanel();
	fileNamePanel.setLayout(new BoxLayout(fileNamePanel, BoxLayout.LINE_AXIS));
	bottomPanel.add(fileNamePanel);
	bottomPanel.add(Box.createRigidArea(vstrut5));

	fileNameLabel = new AlignedLabel();
	populateFileNameLabel();
	fileNamePanel.add(fileNameLabel);

	fileNameTextField = new JTextField(35) {
	public Dimension getMaximumSize() {
	return new Dimension(Short.MAX_VALUE, super.getPreferredSize().height);
	}
	};
	fileNamePanel.add(fileNameTextField);
	fileNameLabel.setLabelFor(fileNameTextField);
	fileNameTextField.addFocusListener(
	new FocusAdapter() {
	public void focusGained(FocusEvent e) {
	if (!getFileChooser().isMultiSelectionEnabled()) {
	filePane.clearSelection();
	}
	}
	}
	);
	if (fc.isMultiSelectionEnabled()) {
	setFileName(fileNameString(fc.getSelectedFiles()));
	} else {
	setFileName(fileNameString(fc.getSelectedFile()));
	}


	// Filetype label and combobox
	JPanel filesOfTypePanel = new JPanel();
	filesOfTypePanel.setLayout(new BoxLayout(filesOfTypePanel, BoxLayout.LINE_AXIS));
	bottomPanel.add(filesOfTypePanel);

	AlignedLabel filesOfTypeLabel = new AlignedLabel(filesOfTypeLabelText);
	filesOfTypeLabel.setDisplayedMnemonic(filesOfTypeLabelMnemonic);
	filesOfTypePanel.add(filesOfTypeLabel);

	filterComboBoxModel = createFilterComboBoxModel();
	fc.addPropertyChangeListener(filterComboBoxModel);
	filterComboBox = new JComboBox(filterComboBoxModel);
	filterComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY,
	filesOfTypeLabelText);
	filesOfTypeLabel.setLabelFor(filterComboBox);
	filterComboBox.setRenderer(createFilterComboBoxRenderer());
	filesOfTypePanel.add(filterComboBox);

	// buttons
	getButtonPanel().setLayout(new ButtonAreaLayout());

	approveButton = new JButton(getApproveButtonText(fc));
	// Note: Metal does not use mnemonics for approve and cancel
	approveButton.addActionListener(getApproveSelectionAction());
	approveButton.setToolTipText(getApproveButtonToolTipText(fc));
	getButtonPanel().add(approveButton);

	cancelButton = new JButton(cancelButtonText);
	cancelButton.setToolTipText(cancelButtonToolTipText);
	cancelButton.addActionListener(getCancelSelectionAction());
	getButtonPanel().add(cancelButton);

	if(fc.getControlButtonsAreShown()) {
	addControlButtons();
	}

	groupLabels(new AlignedLabel[] { fileNameLabel, filesOfTypeLabel });
	}

	protected JPanel getButtonPanel() {
	if (buttonPanel == null) {
	buttonPanel = new JPanel();
	}
	return buttonPanel;
	}

	protected JPanel getBottomPanel() {
	if(bottomPanel == null) {
	bottomPanel = new JPanel();
	}
	return bottomPanel;
	}

	protected void installStrings(JFileChooser fc) {
	super.installStrings(fc);

	Locale l = fc.getLocale();

	lookInLabelMnemonic = getMnemonic("FileChooser.lookInLabelMnemonic", l);
	lookInLabelText = UIManager.getString("FileChooser.lookInLabelText",l);
	saveInLabelText = UIManager.getString("FileChooser.saveInLabelText",l);

	fileNameLabelMnemonic = getMnemonic("FileChooser.fileNameLabelMnemonic", l);
	fileNameLabelText = UIManager.getString("FileChooser.fileNameLabelText",l);
	folderNameLabelMnemonic = getMnemonic("FileChooser.folderNameLabelMnemonic", l);
	folderNameLabelText = UIManager.getString("FileChooser.folderNameLabelText",l);

	filesOfTypeLabelMnemonic = getMnemonic("FileChooser.filesOfTypeLabelMnemonic", l);
	filesOfTypeLabelText = UIManager.getString("FileChooser.filesOfTypeLabelText",l);

	upFolderToolTipText = UIManager.getString("FileChooser.upFolderToolTipText",l);
	upFolderAccessibleName = UIManager.getString("FileChooser.upFolderAccessibleName",l);

	homeFolderToolTipText = UIManager.getString("FileChooser.homeFolderToolTipText",l);
	homeFolderAccessibleName = UIManager.getString("FileChooser.homeFolderAccessibleName",l);

	newFolderToolTipText = UIManager.getString("FileChooser.newFolderToolTipText",l);
	newFolderAccessibleName = UIManager.getString("FileChooser.newFolderAccessibleName",l);

	listViewButtonToolTipText = UIManager.getString("FileChooser.listViewButtonToolTipText",l);
	listViewButtonAccessibleName = UIManager.getString("FileChooser.listViewButtonAccessibleName",l);

	detailsViewButtonToolTipText = UIManager.getString("FileChooser.detailsViewButtonToolTipText",l);
	detailsViewButtonAccessibleName = UIManager.getString("FileChooser.detailsViewButtonAccessibleName",l);
	}

	private Integer getMnemonic(String key, Locale l) {
	return SwingUtilities2.getUIDefaultsInt(key, l);
	}

	protected void installListeners(JFileChooser fc) {
	super.installListeners(fc);
	ActionMap actionMap = getActionMap();
	SwingUtilities.replaceUIActionMap(fc, actionMap);
	}

	protected ActionMap getActionMap() {
	return createActionMap();
	}

	protected ActionMap createActionMap() {
	ActionMap map = new ActionMapUIResource();
	FilePane.addActionsToMap(map, filePane.getActions());
	return map;
	}

	protected JPanel createList(JFileChooser fc) {
	return filePane.createList();
	}

	protected JPanel createDetailsView(JFileChooser fc) {
	return filePane.createDetailsView();
	}

	/**
	* Creates a selection listener for the list of files and directories.
	*
	* @param fc a <code>JFileChooser</code>
	* @return a <code>ListSelectionListener</code>
	*/
	public ListSelectionListener createListSelectionListener(JFileChooser fc) {
	return super.createListSelectionListener(fc);
	}

	// Obsolete class, not used in this version.
	protected class SingleClickListener extends MouseAdapter {
	public SingleClickListener(JList list) {
	}
	}

	// Obsolete class, not used in this version.
	protected class FileRenderer extends DefaultListCellRenderer {
	}

	public void uninstallUI(JComponent c) {
	// Remove listeners
	c.removePropertyChangeListener(filterComboBoxModel);
	c.removePropertyChangeListener(filePane);
	cancelButton.removeActionListener(getCancelSelectionAction());
	approveButton.removeActionListener(getApproveSelectionAction());
	fileNameTextField.removeActionListener(getApproveSelectionAction());

	if (filePane != null) {
	filePane.uninstallUI();
	filePane = null;
	}

	super.uninstallUI(c);
	}

	/**
	* Returns the preferred size of the specified
	* <code>JFileChooser</code>.
	* The preferred size is at least as large,
	* in both height and width,
	* as the preferred size recommended
	* by the file chooser's layout manager.
	*
	* @param c a <code>JFileChooser</code>
	* @return a <code>Dimension</code> specifying the preferred
	* width and height of the file chooser
	*/
	@Override
	public Dimension getPreferredSize(JComponent c) {
	int prefWidth = PREF_SIZE.width;
	Dimension d = c.getLayout().preferredLayoutSize(c);
	if (d != null) {
	return new Dimension(d.width < prefWidth ? prefWidth : d.width,
	d.height < PREF_SIZE.height ? PREF_SIZE.height : d.height);
	} else {
	return new Dimension(prefWidth, PREF_SIZE.height);
	}
	}

	/**
	* Returns the minimum size of the <code>JFileChooser</code>.
	*
	* @param c a <code>JFileChooser</code>
	* @return a <code>Dimension</code> specifying the minimum
	* width and height of the file chooser
	*/
	@Override
	public Dimension getMinimumSize(JComponent c) {
	return new Dimension(MIN_WIDTH, MIN_HEIGHT);
	}

	/**
	* Returns the maximum size of the <code>JFileChooser</code>.
	*
	* @param c a <code>JFileChooser</code>
	* @return a <code>Dimension</code> specifying the maximum
	* width and height of the file chooser
	*/
	@Override
	public Dimension getMaximumSize(JComponent c) {
	return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
	}

	private String fileNameString(File file) {
	if (file == null) {
	return null;
	} else {
	JFileChooser fc = getFileChooser();
	if ((fc.isDirectorySelectionEnabled() && !fc.isFileSelectionEnabled()) \|\|
	(fc.isDirectorySelectionEnabled() && fc.isFileSelectionEnabled()
	&& fc.getFileSystemView().isFileSystemRoot(file))) {
	return file.getPath();
	} else {
	return file.getName();
	}
	}
	}

	private String fileNameString(File[] files) {
	StringBuffer buf = new StringBuffer();
	for (int i = 0; files != null && i < files.length; i++) {
	if (i > 0) {
	buf.append(" ");
	}
	if (files.length > 1) {
	buf.append("\"");
	}
	buf.append(fileNameString(files[i]));
	if (files.length > 1) {
	buf.append("\"");
	}
	}
	return buf.toString();
	}

	/* The following methods are used by the PropertyChange Listener */

	private void doSelectedFileChanged(PropertyChangeEvent e) {
	File f = (File) e.getNewValue();
	JFileChooser fc = getFileChooser();
	if (f != null
	&& ((fc.isFileSelectionEnabled() && !f.isDirectory())
	\|\| (f.isDirectory() && fc.isDirectorySelectionEnabled()))) {

	setFileName(fileNameString(f));
	}
	}

	private void doSelectedFilesChanged(PropertyChangeEvent e) {
	File[] files = (File[]) e.getNewValue();
	JFileChooser fc = getFileChooser();
	if (files != null
	&& files.length > 0
	&& (files.length > 1 \|\| fc.isDirectorySelectionEnabled() \|\| !files[0].isDirectory())) {
	setFileName(fileNameString(files));
	}
	}

	private void doDirectoryChanged(PropertyChangeEvent e) {
	JFileChooser fc = getFileChooser();
	FileSystemView fsv = fc.getFileSystemView();

	clearIconCache();
	File currentDirectory = fc.getCurrentDirectory();
	if(currentDirectory != null) {
	directoryComboBoxModel.addItem(currentDirectory);

	if (fc.isDirectorySelectionEnabled() && !fc.isFileSelectionEnabled()) {
	if (fsv.isFileSystem(currentDirectory)) {
	setFileName(currentDirectory.getPath());
	} else {
	setFileName(null);
	}
	}
	}
	}

	private void doFilterChanged(PropertyChangeEvent e) {
	clearIconCache();
	}

	private void doFileSelectionModeChanged(PropertyChangeEvent e) {
	if (fileNameLabel != null) {
	populateFileNameLabel();
	}
	clearIconCache();

	JFileChooser fc = getFileChooser();
	File currentDirectory = fc.getCurrentDirectory();
	if (currentDirectory != null
	&& fc.isDirectorySelectionEnabled()
	&& !fc.isFileSelectionEnabled()
	&& fc.getFileSystemView().isFileSystem(currentDirectory)) {

	setFileName(currentDirectory.getPath());
	} else {
	setFileName(null);
	}
	}

	private void doAccessoryChanged(PropertyChangeEvent e) {
	if(getAccessoryPanel() != null) {
	if(e.getOldValue() != null) {
	getAccessoryPanel().remove((JComponent) e.getOldValue());
	}
	JComponent accessory = (JComponent) e.getNewValue();
	if(accessory != null) {
	getAccessoryPanel().add(accessory, BorderLayout.CENTER);
	}
	}
	}

	private void doApproveButtonTextChanged(PropertyChangeEvent e) {
	JFileChooser chooser = getFileChooser();
	approveButton.setText(getApproveButtonText(chooser));
	approveButton.setToolTipText(getApproveButtonToolTipText(chooser));
	}

	private void doDialogTypeChanged(PropertyChangeEvent e) {
	JFileChooser chooser = getFileChooser();
	approveButton.setText(getApproveButtonText(chooser));
	approveButton.setToolTipText(getApproveButtonToolTipText(chooser));
	if (chooser.getDialogType() == JFileChooser.SAVE_DIALOG) {
	lookInLabel.setText(saveInLabelText);
	} else {
	lookInLabel.setText(lookInLabelText);
	}
	}

	private void doApproveButtonMnemonicChanged(PropertyChangeEvent e) {
	// Note: Metal does not use mnemonics for approve and cancel
	}

	private void doControlButtonsChanged(PropertyChangeEvent e) {
	if(getFileChooser().getControlButtonsAreShown()) {
	addControlButtons();
	} else {
	removeControlButtons();
	}
	}

	/*
	* Listen for filechooser property changes, such as
	* the selected file changing, or the type of the dialog changing.
	*/
	public PropertyChangeListener createPropertyChangeListener(JFileChooser fc) {
	return new PropertyChangeListener() {
	public void propertyChange(PropertyChangeEvent e) {
	String s = e.getPropertyName();
	if(s.equals(JFileChooser.SELECTED_FILE_CHANGED_PROPERTY)) {
	doSelectedFileChanged(e);
	} else if (s.equals(JFileChooser.SELECTED_FILES_CHANGED_PROPERTY)) {
	doSelectedFilesChanged(e);
	} else if(s.equals(JFileChooser.DIRECTORY_CHANGED_PROPERTY)) {
	doDirectoryChanged(e);
	} else if(s.equals(JFileChooser.FILE_FILTER_CHANGED_PROPERTY)) {
	doFilterChanged(e);
	} else if(s.equals(JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY)) {
	doFileSelectionModeChanged(e);
	} else if(s.equals(JFileChooser.ACCESSORY_CHANGED_PROPERTY)) {
	doAccessoryChanged(e);
	} else if (s.equals(JFileChooser.APPROVE_BUTTON_TEXT_CHANGED_PROPERTY) \|\|
	s.equals(JFileChooser.APPROVE_BUTTON_TOOL_TIP_TEXT_CHANGED_PROPERTY)) {
	doApproveButtonTextChanged(e);
	} else if(s.equals(JFileChooser.DIALOG_TYPE_CHANGED_PROPERTY)) {
	doDialogTypeChanged(e);
	} else if(s.equals(JFileChooser.APPROVE_BUTTON_MNEMONIC_CHANGED_PROPERTY)) {
	doApproveButtonMnemonicChanged(e);
	} else if(s.equals(JFileChooser.CONTROL_BUTTONS_ARE_SHOWN_CHANGED_PROPERTY)) {
	doControlButtonsChanged(e);
	} else if (s.equals("componentOrientation")) {
	ComponentOrientation o = (ComponentOrientation)e.getNewValue();
	JFileChooser cc = (JFileChooser)e.getSource();
	if (o != e.getOldValue()) {
	cc.applyComponentOrientation(o);
	}
	} else if (s == "FileChooser.useShellFolder") {
	doDirectoryChanged(e);
	} else if (s.equals("ancestor")) {
	if (e.getOldValue() == null && e.getNewValue() != null) {
	// Ancestor was added, set initial focus
	fileNameTextField.selectAll();
	fileNameTextField.requestFocus();
	}
	}
	}
	};
	}


	protected void removeControlButtons() {
	getBottomPanel().remove(getButtonPanel());
	}

	protected void addControlButtons() {
	getBottomPanel().add(getButtonPanel());
	}

	public void ensureFileIsVisible(JFileChooser fc, File f) {
	filePane.ensureFileIsVisible(fc, f);
	}

	public void rescanCurrentDirectory(JFileChooser fc) {
	filePane.rescanCurrentDirectory();
	}

	public String getFileName() {
	if (fileNameTextField != null) {
	return fileNameTextField.getText();
	} else {
	return null;
	}
	}

	public void setFileName(String filename) {
	if (fileNameTextField != null) {
	fileNameTextField.setText(filename);
	}
	}

	/**
	* Property to remember whether a directory is currently selected in the UI.
	* This is normally called by the UI on a selection event.
	*
	* @param directorySelected if a directory is currently selected.
	* @since 1.4
	*/
	protected void setDirectorySelected(boolean directorySelected) {
	super.setDirectorySelected(directorySelected);
	JFileChooser chooser = getFileChooser();
	if(directorySelected) {
	if (approveButton != null) {
	approveButton.setText(directoryOpenButtonText);
	approveButton.setToolTipText(directoryOpenButtonToolTipText);
	}
	} else {
	if (approveButton != null) {
	approveButton.setText(getApproveButtonText(chooser));
	approveButton.setToolTipText(getApproveButtonToolTipText(chooser));
	}
	}
	}

	public String getDirectoryName() {
	// PENDING(jeff) - get the name from the directory combobox
	return null;
	}

	public void setDirectoryName(String dirname) {
	// PENDING(jeff) - set the name in the directory combobox
	}

	protected DirectoryComboBoxRenderer createDirectoryComboBoxRenderer(JFileChooser fc) {
	return new DirectoryComboBoxRenderer();
	}

	//
	// Renderer for DirectoryComboBox
	//
	class DirectoryComboBoxRenderer extends DefaultListCellRenderer {
	IndentIcon ii = new IndentIcon();
	public Component getListCellRendererComponent(JList list, Object value,
	int index, boolean isSelected,
	boolean cellHasFocus) {

	super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

	if (value == null) {
	setText("");
	return this;
	}
	File directory = (File)value;
	setText(getFileChooser().getName(directory));
	Icon icon = getFileChooser().getIcon(directory);
	ii.icon = icon;
	ii.depth = directoryComboBoxModel.getDepth(index);
	setIcon(ii);

	return this;
	}
	}

	final static int space = 10;
	class IndentIcon implements Icon {

	Icon icon = null;
	int depth = 0;

	public void paintIcon(Component c, Graphics g, int x, int y) {
	if (c.getComponentOrientation().isLeftToRight()) {
	icon.paintIcon(c, g, x+depth*space, y);
	} else {
	icon.paintIcon(c, g, x, y);
	}
	}

	public int getIconWidth() {
	return icon.getIconWidth() + depth*space;
	}

	public int getIconHeight() {
	return icon.getIconHeight();
	}

	}

	//
	// DataModel for DirectoryComboxbox
	//
	protected DirectoryComboBoxModel createDirectoryComboBoxModel(JFileChooser fc) {
	return new DirectoryComboBoxModel();
	}

	/**
	* Data model for a type-face selection combo-box.
	*/
	protected class DirectoryComboBoxModel extends AbstractListModel<Object> implements ComboBoxModel<Object> {
	Vector<File> directories = new Vector<File>();
	int[] depths = null;
	File selectedDirectory = null;
	JFileChooser chooser = getFileChooser();
	FileSystemView fsv = chooser.getFileSystemView();

	public DirectoryComboBoxModel() {
	// Add the current directory to the model, and make it the
	// selectedDirectory
	File dir = getFileChooser().getCurrentDirectory();
	if(dir != null) {
	addItem(dir);
	}
	}

	/**
	* Adds the directory to the model and sets it to be selected,
	* additionally clears out the previous selected directory and
	* the paths leading up to it, if any.
	*/
	private void addItem(File directory) {

	if(directory == null) {
	return;
	}

	boolean useShellFolder = FilePane.usesShellFolder(chooser);

	directories.clear();

	File[] baseFolders = (useShellFolder)
	? (File[]) ShellFolder.get("fileChooserComboBoxFolders")
	: fsv.getRoots();
	directories.addAll(Arrays.asList(baseFolders));

	// Get the canonical (full) path. This has the side
	// benefit of removing extraneous chars from the path,
	// for example /foo/bar/ becomes /foo/bar
	File canonical;
	try {
	canonical = ShellFolder.getNormalizedFile(directory);
	} catch (IOException e) {
	// Maybe drive is not ready. Can't abort here.
	canonical = directory;
	}

	// create File instances of each directory leading up to the top
	try {
	File sf = useShellFolder ? ShellFolder.getShellFolder(canonical)
	: canonical;
	File f = sf;
	Vector<File> path = new Vector<File>(10);
	do {
	path.addElement(f);
	} while ((f = f.getParentFile()) != null);

	int pathCount = path.size();
	// Insert chain at appropriate place in vector
	for (int i = 0; i < pathCount; i++) {
	f = path.get(i);
	if (directories.contains(f)) {
	int topIndex = directories.indexOf(f);
	for (int j = i-1; j >= 0; j--) {
	directories.insertElementAt(path.get(j), topIndex+i-j);
	}
	break;
	}
	}
	calculateDepths();
	setSelectedItem(sf);
	} catch (FileNotFoundException ex) {
	calculateDepths();
	}
	}

	private void calculateDepths() {
	depths = new int[directories.size()];
	for (int i = 0; i < depths.length; i++) {
	File dir = directories.get(i);
	File parent = dir.getParentFile();
	depths[i] = 0;
	if (parent != null) {
	for (int j = i-1; j >= 0; j--) {
	if (parent.equals(directories.get(j))) {
	depths[i] = depths[j] + 1;
	break;
	}
	}
	}
	}
	}

	public int getDepth(int i) {
	return (depths != null && i >= 0 && i < depths.length) ? depths[i] : 0;
	}

	public void setSelectedItem(Object selectedDirectory) {
	this.selectedDirectory = (File)selectedDirectory;
	fireContentsChanged(this, -1, -1);
	}

	public Object getSelectedItem() {
	return selectedDirectory;
	}

	public int getSize() {
	return directories.size();
	}

	public Object getElementAt(int index) {
	return directories.elementAt(index);
	}
	}

	//
	// Renderer for Types ComboBox
	//
	protected FilterComboBoxRenderer createFilterComboBoxRenderer() {
	return new FilterComboBoxRenderer();
	}

	/**
	* Render different type sizes and styles.
	*/
	public class FilterComboBoxRenderer extends DefaultListCellRenderer {
	public Component getListCellRendererComponent(JList list,
	Object value, int index, boolean isSelected,
	boolean cellHasFocus) {

	super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

	if (value != null && value instanceof FileFilter) {
	setText(((FileFilter)value).getDescription());
	}

	return this;
	}
	}

	//
	// DataModel for Types Comboxbox
	//
	protected FilterComboBoxModel createFilterComboBoxModel() {
	return new FilterComboBoxModel();
	}

	/**
	* Data model for a type-face selection combo-box.
	*/
	protected class FilterComboBoxModel extends AbstractListModel<Object> implements ComboBoxModel<Object>, PropertyChangeListener {
	protected FileFilter[] filters;
	protected FilterComboBoxModel() {
	super();
	filters = getFileChooser().getChoosableFileFilters();
	}

	public void propertyChange(PropertyChangeEvent e) {
	String prop = e.getPropertyName();
	if(prop == JFileChooser.CHOOSABLE_FILE_FILTER_CHANGED_PROPERTY) {
	filters = (FileFilter[]) e.getNewValue();
	fireContentsChanged(this, -1, -1);
	} else if (prop == JFileChooser.FILE_FILTER_CHANGED_PROPERTY) {
	fireContentsChanged(this, -1, -1);
	}
	}

	public void setSelectedItem(Object filter) {
	if(filter != null) {
	getFileChooser().setFileFilter((FileFilter) filter);
	fireContentsChanged(this, -1, -1);
	}
	}

	public Object getSelectedItem() {
	// Ensure that the current filter is in the list.
	// NOTE: we shouldnt' have to do this, since JFileChooser adds
	// the filter to the choosable filters list when the filter
	// is set. Lets be paranoid just in case someone overrides
	// setFileFilter in JFileChooser.
	FileFilter currentFilter = getFileChooser().getFileFilter();
	boolean found = false;
	if(currentFilter != null) {
	for (FileFilter filter : filters) {
	if (filter == currentFilter) {
	found = true;
	}
	}
	if(found == false) {
	getFileChooser().addChoosableFileFilter(currentFilter);
	}
	}
	return getFileChooser().getFileFilter();
	}

	public int getSize() {
	if(filters != null) {
	return filters.length;
	} else {
	return 0;
	}
	}

	public Object getElementAt(int index) {
	if(index > getSize() - 1) {
	// This shouldn't happen. Try to recover gracefully.
	return getFileChooser().getFileFilter();
	}
	if(filters != null) {
	return filters[index];
	} else {
	return null;
	}
	}
	}

	public void valueChanged(ListSelectionEvent e) {
	JFileChooser fc = getFileChooser();
	File f = fc.getSelectedFile();
	if (!e.getValueIsAdjusting() && f != null && !getFileChooser().isTraversable(f)) {
	setFileName(fileNameString(f));
	}
	}

	/**
	* Acts when DirectoryComboBox has changed the selected item.
	*/
	protected class DirectoryComboBoxAction extends AbstractAction {
	protected DirectoryComboBoxAction() {
	super("DirectoryComboBoxAction");
	}

	public void actionPerformed(ActionEvent e) {
	directoryComboBox.hidePopup();
	File f = (File)directoryComboBox.getSelectedItem();
	if (!getFileChooser().getCurrentDirectory().equals(f)) {
	getFileChooser().setCurrentDirectory(f);
	}
	}
	}

	protected JButton getApproveButton(JFileChooser fc) {
	return approveButton;
	}


	/**
	* <code>ButtonAreaLayout</code> behaves in a similar manner to
	* <code>FlowLayout</code>. It lays out all components from left to
	* right, flushed right. The widths of all components will be set
	* to the largest preferred size width.
	*/
	private static class ButtonAreaLayout implements LayoutManager {
	private int hGap = 5;
	private int topMargin = 17;

	public void addLayoutComponent(String string, Component comp) {
	}

	public void layoutContainer(Container container) {
	Component[] children = container.getComponents();

	if (children != null && children.length > 0) {
	int numChildren = children.length;
	Dimension[] sizes = new Dimension[numChildren];
	Insets insets = container.getInsets();
	int yLocation = insets.top + topMargin;
	int maxWidth = 0;

	for (int counter = 0; counter < numChildren; counter++) {
	sizes[counter] = children[counter].getPreferredSize();
	maxWidth = Math.max(maxWidth, sizes[counter].width);
	}
	int xLocation, xOffset;
	if (container.getComponentOrientation().isLeftToRight()) {
	xLocation = container.getSize().width - insets.left - maxWidth;
	xOffset = hGap + maxWidth;
	} else {
	xLocation = insets.left;
	xOffset = -(hGap + maxWidth);
	}
	for (int counter = numChildren - 1; counter >= 0; counter--) {
	children[counter].setBounds(xLocation, yLocation,
	maxWidth, sizes[counter].height);
	xLocation -= xOffset;
	}
	}
	}

	public Dimension minimumLayoutSize(Container c) {
	if (c != null) {
	Component[] children = c.getComponents();

	if (children != null && children.length > 0) {
	int numChildren = children.length;
	int height = 0;
	Insets cInsets = c.getInsets();
	int extraHeight = topMargin + cInsets.top + cInsets.bottom;
	int extraWidth = cInsets.left + cInsets.right;
	int maxWidth = 0;

	for (int counter = 0; counter < numChildren; counter++) {
	Dimension aSize = children[counter].getPreferredSize();
	height = Math.max(height, aSize.height);
	maxWidth = Math.max(maxWidth, aSize.width);
	}
	return new Dimension(extraWidth + numChildren * maxWidth +
	(numChildren - 1) * hGap,
	extraHeight + height);
	}
	}
	return new Dimension(0, 0);
	}

	public Dimension preferredLayoutSize(Container c) {
	return minimumLayoutSize(c);
	}

	public void removeLayoutComponent(Component c) { }
	}

	private static void groupLabels(AlignedLabel[] group) {
	for (int i = 0; i < group.length; i++) {
	group[i].group = group;
	}
	}

	private class AlignedLabel extends JLabel {
	private AlignedLabel[] group;
	private int maxWidth = 0;

	AlignedLabel() {
	super();
	setAlignmentX(JComponent.LEFT_ALIGNMENT);
	}


	AlignedLabel(String text) {
	super(text);
	setAlignmentX(JComponent.LEFT_ALIGNMENT);
	}

	public Dimension getPreferredSize() {
	Dimension d = super.getPreferredSize();
	// Align the width with all other labels in group.
	return new Dimension(getMaxWidth() + 11, d.height);
	}

	private int getMaxWidth() {
	if (maxWidth == 0 && group != null) {
	int max = 0;
	for (int i = 0; i < group.length; i++) {
	max = Math.max(group[i].getSuperPreferredWidth(), max);
	}
	for (int i = 0; i < group.length; i++) {
	group[i].maxWidth = max;
	}
	}
	return maxWidth;
	}

	private int getSuperPreferredWidth() {
	return super.getPreferredSize().width;
	}
	}
	}

Back to index...