Options.java

/**
* GmailAssistant 1.1 (2008-03-16)
* Copyright 2008 Zach Scrivena
* zachscrivena@gmail.com
* http://gmailassistant.sourceforge.net/
*
* Notifier for multiple Gmail accounts.
*
* TERMS AND CONDITIONS:
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*
* 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 gmailassistant;

import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Arrays;
import java.util.List;
import javax.swing.AbstractAction;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.KeyStroke;
import javax.swing.event.DocumentEvent;

/**
* "Options" form.
*/
public class Options
extends JFrame
{
/** parent GmailAssistant object */
private final GmailAssistant parent;

/** are the "General" options selection valid? */
private volatile boolean generalOptionsValid = false;

/** are the "Proxy" options selection valid? */
private volatile boolean proxyOptionsValid = false;

/** are the "Mail Check" options selection valid? */
private volatile boolean mailCheckOptionsValid = false;

/** are the "Alerts" options selection valid? */
private volatile boolean alertsOptionsValid = false;

/**
* Constructor.
*
* @param parent
* parent GmailAssistant object
*/
Options(
final GmailAssistant parent)
{
/*********************
* INITIALIZE FIELDS *
*********************/

this.parent = parent;

/******************************
* INITIALIZE FORM COMPONENTS *
******************************/

initComponents();

/***************************
* CONFIGURE FORM SETTINGS *
***************************/

setTitle("Options - " + this.parent.getTitle());

addWindowListener(new WindowAdapter()
{
@Override
public void windowClosing(WindowEvent e)
{
Options.this.cancelButton.doClick();
}
});

/* inherit "always on top" behavior of parent */
try
{
setAlwaysOnTop(this.parent.isAlwaysOnTop());
}
catch (Exception e)
{
/* ignore */
}

/* inherit program icon of parent */
final List<Image> icons = this.parent.getIconImages();

if (!icons.isEmpty())
{
setIconImage(icons.get(0));
}

/* populate the "Options" form */
repopulateOptions();

/* "General" options */

/* "Proxy" options */
final JTextField[] proxyFields = new JTextField[]
{
this.proxyHostField,
this.proxyPortField,
this.proxyUsernameField,
this.proxyPasswordField
};

for (JTextField f : proxyFields)
{
f.getDocument().addDocumentListener(new DocumentListenerAdapter()
{
@Override
public void insertUpdate(DocumentEvent e)
{
checkProxyOptions();
}

@Override
public void removeUpdate(DocumentEvent e)
{
checkProxyOptions();
}

@Override
public void changedUpdate(DocumentEvent e)
{
checkProxyOptions();
}
});
}

/* "Mail Check" options */
this.mailField.getDocument().addDocumentListener(new DocumentListenerAdapter()
{
@Override
public void insertUpdate(DocumentEvent e)
{
checkMailCheckOptions();
}

@Override
public void removeUpdate(DocumentEvent e)
{
checkMailCheckOptions();
}

@Override
public void changedUpdate(DocumentEvent e)
{
checkMailCheckOptions();
}
});

/* "Alerts" options */
this.bellField.getDocument().addDocumentListener(new DocumentListenerAdapter()
{
@Override
public void insertUpdate(DocumentEvent e)
{
checkAlertsOptions();
}

@Override
public void removeUpdate(DocumentEvent e)
{
checkAlertsOptions();
}

@Override
public void changedUpdate(DocumentEvent e)
{
checkAlertsOptions();
}
});

/* button: "OK" */
this.okButton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
acceptOptions();
}
});

/* button: "Cancel" */
this.cancelButton.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e)
{
cancelOptions();
}
});

/* add standard editing popup menu to text fields */
SwingManipulator.addStandardEditingPopupMenu(new JTextField[]
{
this.proxyHostField,
this.proxyPortField,
this.proxyUsernameField,
this.proxyPasswordField,
this.mailField,
this.bellField
});

/* key binding: ENTER key */
this.tabbedPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "ENTER_OK_BUTTON");

this.tabbedPane.getActionMap().put("ENTER_OK_BUTTON", new AbstractAction()
{
public void actionPerformed(ActionEvent e)
{
Options.this.okButton.doClick();
}
});

/* key binding: ESCAPE key */
this.tabbedPane.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
.put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), "ESCAPE_CANCEL_BUTTON");

this.tabbedPane.getActionMap().put("ESCAPE_CANCEL_BUTTON", new AbstractAction()
{
public void actionPerformed(ActionEvent e)
{
Options.this.cancelButton.doClick();
}
});

/* center form on the parent form */
setLocationRelativeTo(this.parent);
}

/**
* Accept changes and close the "Options" form.
*/
private void acceptOptions()
{
/* revalidate options */
checkGeneralOptions();
checkProxyOptions();
checkMailCheckOptions();
checkAlertsOptions();

if (this.generalOptionsValid &&
this.proxyOptionsValid &&
this.mailCheckOptionsValid &&
this.alertsOptionsValid)
{
/* all options are valid */

/* "General" options */
this.parent.setProperty(GmailAssistant.Property.ALWAYS_ON_TOP, this.topBox.isSelected());

/* "Proxy" options */
this.parent.setProperty(GmailAssistant.Property.PROXY_HOST, this.proxyHostField.getText());
this.parent.setProperty(GmailAssistant.Property.PROXY_PORT, this.proxyPortField.getText());
this.parent.setProperty(GmailAssistant.Property.PROXY_USERNAME, this.proxyUsernameField.getText());
this.parent.setProperty(GmailAssistant.Property.PROXY_PASSWORD, SwingManipulator.getPasswordJPasswordField(this.proxyPasswordField));

/* "Mail Check" options */
this.parent.setProperty(GmailAssistant.Property.MAIL_CHECK_INTERVAL_MILLISECONDS, Long.parseLong(this.mailField.getText()));

/* "Alerts" options */
this.parent.setProperty(GmailAssistant.Property.ALERT_POPUP_PERSISTENT_MESSAGES, this.persistentBox.isSelected());
this.parent.setProperty(GmailAssistant.Property.ALERT_PERIODIC_BELL_INTERVAL_MILLISECONDS, Long.parseLong(this.bellField.getText()));

this.setVisible(false);
}
}

/**
* Cancel changes and close the "Options" form.
*/
private void cancelOptions()
{
repopulateOptions();
this.setVisible(false);
}

/**
* Repopulate the "Options" form according to the program properties.
*/
void repopulateOptions()
{
/* "General" options */
this.topBox.setSelected((Boolean) this.parent.getProperty(GmailAssistant.Property.ALWAYS_ON_TOP));

/* "Proxy" options */
this.proxyHostField.setText((String) this.parent.getProperty(GmailAssistant.Property.PROXY_HOST));
this.proxyPortField.setText((String) this.parent.getProperty(GmailAssistant.Property.PROXY_PORT));
this.proxyUsernameField.setText((String) this.parent.getProperty(GmailAssistant.Property.PROXY_USERNAME));
this.proxyPasswordField.setText(String.valueOf((char[]) this.parent.getProperty(GmailAssistant.Property.PROXY_PASSWORD)));

/* "Mail Check" options */
this.mailField.setText(((Long) this.parent.getProperty(GmailAssistant.Property.MAIL_CHECK_INTERVAL_MILLISECONDS)).toString());

/* "Alerts" options */
this.persistentBox.setSelected((Boolean) this.parent.getProperty(GmailAssistant.Property.ALERT_POPUP_PERSISTENT_MESSAGES));
this.bellField.setText(((Long) this.parent.getProperty(GmailAssistant.Property.ALERT_PERIODIC_BELL_INTERVAL_MILLISECONDS)).toString());

/* validate options */
checkGeneralOptions();
checkProxyOptions();
checkMailCheckOptions();
checkAlertsOptions();
}

/**
* Check "General" options specified by the user.
* This method must run on the EDT.
*/
private void checkGeneralOptions()
{
String error = null;

if (error != null)
{
this.generalError.setText("<html>" + error + "</html>");
this.okButton.setEnabled(false);
this.generalOptionsValid = false;
return;
}

this.generalOptionsValid = true;
this.generalError.setText(" ");

if (this.generalOptionsValid &&
this.proxyOptionsValid &&
this.mailCheckOptionsValid &&
this.alertsOptionsValid)
{
/* all options are valid */
this.okButton.setEnabled(true);
}
}

/**
* Check "Proxy" options specified by the user.
* This method must run on the EDT.
*/
private void checkProxyOptions()
{
String error = null;

final String host = SwingManipulator.getTextJTextField(this.proxyHostField).trim();
final String port = SwingManipulator.getTextJTextField(this.proxyPortField).trim();
final String username = SwingManipulator.getTextJTextField(this.proxyUsernameField).trim();
final char[] password = SwingManipulator.getPasswordJPasswordField(this.proxyPasswordField);
final int passwordLength = password.length;
Arrays.fill(password, '\0');

if (host.isEmpty() != port.isEmpty())
{
error = "Both proxy host and port must be specified";
}
else if (username.isEmpty() && (passwordLength > 0))
{
error = "Proxy username must be specified if password is specified";
}
else if (!port.isEmpty())
{
try
{
if (Integer.parseInt(port) < 0)
{
error = "Proxy port must be a nonnegative integer";
}
}
catch (NumberFormatException e)
{
error = "Proxy port must be a nonnegative integer";
}
}

if (error != null)
{
this.proxyError.setText("<html>" + error + "</html>");
this.okButton.setEnabled(false);
this.proxyOptionsValid = false;
return;
}

this.proxyOptionsValid = true;
this.proxyError.setText(" ");

if (this.generalOptionsValid &&
this.proxyOptionsValid &&
this.mailCheckOptionsValid &&
this.alertsOptionsValid)
{
/* all options are valid */
this.okButton.setEnabled(true);
}
}

/**
* Check "Mail Check" options specified by the user.
* This method must run on the EDT.
*/
private void checkMailCheckOptions()
{
String error = null;

final String mail = SwingManipulator.getTextJTextField(this.mailField).trim();

if (mail.isEmpty())
{
error = "Mail check interval must not be empty";
}
else
{
try
{
if (Long.parseLong(mail) < 0)
{
error = "Mail check interval must be a nonnegative integer";
}
}
catch (NumberFormatException e)
{
error = "Mail check interval must be a nonnegative integer";
}
}

if (error != null)
{
this.mailCheckError.setText("<html>" + error + "</html>");
this.okButton.setEnabled(false);
this.mailCheckOptionsValid = false;
return;
}

this.mailCheckOptionsValid = true;
this.mailCheckError.setText(" ");

if (this.generalOptionsValid &&
this.proxyOptionsValid &&
this.mailCheckOptionsValid &&
this.alertsOptionsValid)
{
/* all options are valid */
this.okButton.setEnabled(true);
}
}

/**
* Check "Alerts" options specified by the user.
* This method must run on the EDT.
*/
private void checkAlertsOptions()
{
String error = null;

final String bell = SwingManipulator.getTextJTextField(this.bellField).trim();

if (bell.isEmpty())
{
error = "Periodic bell interval must not be empty";
}
else
{
try
{
if (Long.parseLong(bell) < 0)
{
error = "Periodic bell interval must be a nonnegative integer";
}
}
catch (NumberFormatException e)
{
error = "Periodic bell interval must be a nonnegative integer";
}
}

if (error != null)
{
this.alertsError.setText("<html>" + error + "</html>");
this.okButton.setEnabled(false);
this.alertsOptionsValid = false;
return;
}

this.alertsOptionsValid = true;
this.alertsError.setText(" ");

if (this.generalOptionsValid &&
this.proxyOptionsValid &&
this.mailCheckOptionsValid &&
this.alertsOptionsValid)
{
/* all options are valid */
this.okButton.setEnabled(true);
}
}

/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
 // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
 private void initComponents()
 {

 tabbedPane = new javax.swing.JTabbedPane();
 generalPanel = new javax.swing.JPanel();
 topBox = new javax.swing.JCheckBox();
 generalError = new javax.swing.JLabel();
 proxyPanel = new javax.swing.JPanel();
 proxyLabel = new javax.swing.JLabel();
 proxyHostLabel = new javax.swing.JLabel();
 proxyHostField = new javax.swing.JTextField();
 proxyPortField = new javax.swing.JTextField();
 proxyPortLabel = new javax.swing.JLabel();
 proxyUsernameLabel = new javax.swing.JLabel();
 proxyPasswordLabel = new javax.swing.JLabel();
 proxyUsernameField = new javax.swing.JTextField();
 proxyPasswordField = new javax.swing.JPasswordField();
 proxyError = new javax.swing.JLabel();
 mailCheckPanel = new javax.swing.JPanel();
 mailLabel = new javax.swing.JLabel();
 mailField = new javax.swing.JTextField();
 mailCheckError = new javax.swing.JLabel();
 alertsPanel = new javax.swing.JPanel();
 bellLabel = new javax.swing.JLabel();
 bellField = new javax.swing.JTextField();
 persistentBox = new javax.swing.JCheckBox();
 alertsError = new javax.swing.JLabel();
 buttonsPanel = new javax.swing.JPanel();
 okButton = new javax.swing.JButton();
 cancelButton = new javax.swing.JButton();

 setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE);

 topBox.setMnemonic('T');
 topBox.setText("Always on top");
 topBox.setToolTipText("Keep the GmailAssistant windows above other programs on the desktop");

 generalError.setText("<html>General error</html>");

 javax.swing.GroupLayout generalPanelLayout = new javax.swing.GroupLayout(generalPanel);
 generalPanel.setLayout(generalPanelLayout);
 generalPanelLayout.setHorizontalGroup(
 generalPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(generalPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addGroup(generalPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addComponent(generalError, javax.swing.GroupLayout.DEFAULT_SIZE, 276, Short.MAX_VALUE)
 .addComponent(topBox))
 .addContainerGap())
 );
 generalPanelLayout.setVerticalGroup(
 generalPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(generalPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addComponent(topBox)
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 169, Short.MAX_VALUE)
 .addComponent(generalError)
 .addContainerGap())
 );

 tabbedPane.addTab("General", generalPanel);

 proxyLabel.setText("<html>GmailAssistant can use a proxy server that supports the SOCKS v4 or v5 protocol.<html>");

 proxyHostLabel.setDisplayedMnemonic('h');
 proxyHostLabel.setLabelFor(proxyHostField);
 proxyHostLabel.setText("Host:");
 proxyHostLabel.setToolTipText("SOCKS proxy host (e.g. socks.mydomain.com)");

 proxyHostField.setToolTipText("SOCKS proxy host (e.g. socks.mydomain.com)");

 proxyPortField.setToolTipText("SOCKS proxy port (e.g. 1080)");

 proxyPortLabel.setDisplayedMnemonic('t');
 proxyPortLabel.setLabelFor(proxyPortField);
 proxyPortLabel.setText("Port:");
 proxyPortLabel.setToolTipText("SOCKS proxy port (e.g. 1080)");

 proxyUsernameLabel.setDisplayedMnemonic('u');
 proxyUsernameLabel.setLabelFor(proxyUsernameField);
 proxyUsernameLabel.setText("Username:");
 proxyUsernameLabel.setToolTipText("SOCKS proxy username");

 proxyPasswordLabel.setDisplayedMnemonic('p');
 proxyPasswordLabel.setLabelFor(proxyPasswordField);
 proxyPasswordLabel.setText("Password:");
 proxyPasswordLabel.setToolTipText("SOCKS proxy password");

 proxyUsernameField.setToolTipText("SOCKS proxy username");

 proxyPasswordField.setToolTipText("SOCKS proxy password");

 proxyError.setText("<html>Proxy error</html>");

 javax.swing.GroupLayout proxyPanelLayout = new javax.swing.GroupLayout(proxyPanel);
 proxyPanel.setLayout(proxyPanelLayout);
 proxyPanelLayout.setHorizontalGroup(
 proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, proxyPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
 .addComponent(proxyError, javax.swing.GroupLayout.DEFAULT_SIZE, 276, Short.MAX_VALUE)
 .addComponent(proxyLabel, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 276, Short.MAX_VALUE)
 .addGroup(javax.swing.GroupLayout.Alignment.LEADING, proxyPanelLayout.createSequentialGroup()
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
 .addComponent(proxyUsernameLabel, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
 .addComponent(proxyPortLabel, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
 .addComponent(proxyHostLabel, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)
 .addComponent(proxyPasswordLabel, javax.swing.GroupLayout.Alignment.LEADING))
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addComponent(proxyHostField, javax.swing.GroupLayout.DEFAULT_SIZE, 220, Short.MAX_VALUE)
 .addComponent(proxyPortField, javax.swing.GroupLayout.DEFAULT_SIZE, 220, Short.MAX_VALUE)
 .addComponent(proxyUsernameField, javax.swing.GroupLayout.DEFAULT_SIZE, 220, Short.MAX_VALUE)
 .addComponent(proxyPasswordField, javax.swing.GroupLayout.DEFAULT_SIZE, 220, Short.MAX_VALUE))))
 .addContainerGap())
 );
 proxyPanelLayout.setVerticalGroup(
 proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(proxyPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addComponent(proxyLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 28, javax.swing.GroupLayout.PREFERRED_SIZE)
 .addGap(18, 18, 18)
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
 .addComponent(proxyHostLabel)
 .addComponent(proxyHostField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
 .addComponent(proxyPortLabel)
 .addComponent(proxyPortField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
 .addGap(18, 18, 18)
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
 .addComponent(proxyUsernameLabel)
 .addComponent(proxyUsernameField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
 .addGroup(proxyPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
 .addComponent(proxyPasswordLabel)
 .addComponent(proxyPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 22, Short.MAX_VALUE)
 .addComponent(proxyError)
 .addContainerGap())
 );

 tabbedPane.addTab("Proxy", proxyPanel);

 mailLabel.setDisplayedMnemonic('m');
 mailLabel.setLabelFor(mailField);
 mailLabel.setText("Mail check interval (milliseconds):");
 mailLabel.setToolTipText("Mail check interval in milliseconds");

 mailField.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
 mailField.setText("60000");
 mailField.setToolTipText("Mail check interval in milliseconds");

 mailCheckError.setText("<html>Mail check error</html>");

 javax.swing.GroupLayout mailCheckPanelLayout = new javax.swing.GroupLayout(mailCheckPanel);
 mailCheckPanel.setLayout(mailCheckPanelLayout);
 mailCheckPanelLayout.setHorizontalGroup(
 mailCheckPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, mailCheckPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addGroup(mailCheckPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
 .addComponent(mailCheckError, javax.swing.GroupLayout.DEFAULT_SIZE, 276, Short.MAX_VALUE)
 .addGroup(mailCheckPanelLayout.createSequentialGroup()
 .addComponent(mailLabel)
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
 .addComponent(mailField, javax.swing.GroupLayout.DEFAULT_SIZE, 115, Short.MAX_VALUE)))
 .addContainerGap())
 );
 mailCheckPanelLayout.setVerticalGroup(
 mailCheckPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
 .addGroup(mailCheckPanelLayout.createSequentialGroup()
 .addContainerGap()
 .addGroup(mailCheckPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
 .addComponent(mailLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 14, javax.swing.GroupLayout.PREFERRED_SIZE)
 .addComponent(mailField, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE))
 .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 168, Short.MAX_VALUE)
 .addComponent(mailCheckError, javax.swing.GroupLayout.PREFERRED_SIZE,