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An open source emulator supporting 3270 and potentially later 5250 terminal types.
The newest version!
/*
* Copyright (c) 2016, 2017 Ascert, LLC.
* www.ascert.com
*
* Based on original code from FreeHost3270, copyright for derivations from original works remain:
* Copyright (C) 1998, 2001 Art Gillespie
* Copyright (2) 2005 the http://FreeHost3270.Sourceforge.net
*
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.ascert.open.term.gui;
import java.awt.CardLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.text.NumberFormat;
import java.util.Vector;
import java.util.logging.Logger;
import javax.swing.*;
import com.ascert.open.term.core.Host;
import com.ascert.open.term.core.TerminalFactory;
import com.ascert.open.term.core.TerminalFactoryRegistrar;
/**
* Dialog that serves as a widget to specify connection and device settings to the host.
*
* @since 0.2
*/
public class NewHostDialog extends JDialog implements ActionListener,
PropertyChangeListener
{
private static final Logger log = Logger.getLogger(NewHostDialog.class.getName());
private static final String okString = "Ok";
private static final String cancelString = "Cancel";
// Pretty crude model, but will do for now
private Vector termFactoryList = new Vector<>();
private JComboBox typeCombo;
private JCheckBox useEncryptionField;
private JCheckBox addToFavourites;
private JFormattedTextField portField;
private JFormattedTextField keepAliveField;
private JOptionPane optionPane;
private JTextField hostField;
private JPanel termOptsPanel;
private CardLayout cl;
private Host host = new Host();
public NewHostDialog()
{
this(null, null, null);
}
public NewHostDialog(Frame owner, String hostName, Integer portNumber)
{
this(null, null, null, false, null);
}
/**
* Constructs a new edit host connection settings dialog window.
*
* @param owner DOCUMENT ME!
* @param hostName default value for host name. If null none is used.
* @param portNumber default value for port number. If null none is used.
* @param useEncryption default state for 'use encryption' check box.
*/
public NewHostDialog(Frame owner, String hostName, Integer portNumber, boolean useEncryption, Integer kaTimeout)
{
super(owner, "Connection settings", true);
for (TerminalFactory factory : TerminalFactoryRegistrar.getTerminalFactories())
{
addTerminalFactory(factory);
}
hostField = new JTextField(20);
hostField.setText(hostName != null ? hostName : "");
portField = new JFormattedTextField(NumberFormat.getIntegerInstance());
portField.setColumns(4);
portField.setValue(portNumber != null ? portNumber : 23);
useEncryptionField = new JCheckBox();
useEncryptionField.setSelected(useEncryption);
keepAliveField = new JFormattedTextField(NumberFormat.getIntegerInstance());
keepAliveField.setColumns(4);
keepAliveField.setValue(kaTimeout != null ? kaTimeout : 0);
addToFavourites = new JCheckBox();
termOptsPanel = new JPanel();
cl = new CardLayout();
termOptsPanel.setLayout(cl);
for (TermOptsHandler toh : termFactoryList)
{
termOptsPanel.add(toh.getOptsPanel(), toh.toString());
}
typeCombo = new JComboBox(new DefaultComboBoxModel(termFactoryList));
typeCombo.addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent e)
{
if (e.getStateChange() == ItemEvent.SELECTED)
{
TermOptsHandler toh = termFactoryList.get(typeCombo.getSelectedIndex());
cl.show(termOptsPanel, toh.toString());
}
}
});
typeCombo.setSelectedIndex(0);
Object[][] flds = new Object[][] {
{ "Host:", hostField },
{ "Port:", portField },
{ "Use SSL:", useEncryptionField },
{ "KeepAlive timeout (secs):", keepAliveField },
{ "Favourite:", addToFavourites },
{ "Type:", typeCombo },
};
JPanel optPnl = new JPanel(new SpringLayout());
for (int ix = 0; ix < flds.length; ix++)
{
JLabel lbl = new JLabel(flds[ix][0].toString(), JLabel.TRAILING);
optPnl.add(lbl);
Component c = (Component) flds[ix][1];
lbl.setLabelFor(c);
optPnl.add(c);
}
SpringUtilities.makeCompactGrid(optPnl,
flds.length, 2, //rows, cols
8, 4, //initX, initY
8, 4); //xPad, yPad
Object[] controls =
{
optPnl,
termOptsPanel
};
Object[] options =
{
okString, cancelString
};
optionPane = new JOptionPane(controls, JOptionPane.PLAIN_MESSAGE,
JOptionPane.YES_NO_OPTION, null, options, options[0]);
setContentPane(optionPane);
// Handle window closing event
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent we)
{
optionPane.setValue(new Integer(JOptionPane.CLOSED_OPTION));
}
});
// ensure the Host Name field gets the focus
addComponentListener(new ComponentAdapter()
{
public void componentShown(ComponentEvent ce)
{
hostField.requestFocusInWindow();
}
});
optionPane.addPropertyChangeListener(this);
pack();
// center dialog frame on the desktop (root window)
Dimension frame_size;
// center dialog frame on the desktop (root window)
Dimension screen_size;
screen_size = Toolkit.getDefaultToolkit().getScreenSize();
frame_size = this.getSize();
int offX = (int) frame_size.getWidth();
int offY = (int) frame_size.getHeight();
setLocation((screen_size.width - offX) / 2,
(screen_size.height - offY) / 2);
}
public void actionPerformed(ActionEvent evt)
{
}
/**
* This method clears the dialog and hides it.
*/
public void clearAndHide()
{
//hostField.setText(null);
setVisible(false);
}
/**
* Returns host selected name by user.
*
* @return DOCUMENT ME!
*/
public Host getHost()
{
return host;
}
public void propertyChange(PropertyChangeEvent e)
{
String prop = e.getPropertyName();
if (isVisible() && (e.getSource() == optionPane) && (JOptionPane.VALUE_PROPERTY.equals(prop) || JOptionPane.INPUT_VALUE_PROPERTY.
equals(prop)))
{
Object value = optionPane.getValue();
if (value == JOptionPane.UNINITIALIZED_VALUE)
{
// ignore reset
return;
}
// Reset the JOptionPane's value. If you don't do this,
// then if the user presses the same button next time, no
// property change event will be fired.
optionPane.setValue(JOptionPane.UNINITIALIZED_VALUE);
if (okString.equals(value))
{
// we're done; clear and dismiss the dialog
TermOptsHandler toh = termFactoryList.get(typeCombo.getSelectedIndex());
toh.setHostOptions(host);
host.setHostName(hostField.getText());
Number port = (Number) portField.getValue();
host.setPort(port.intValue());
host.setEncryption(useEncryptionField.isSelected());
Number ka = (Number) keepAliveField.getValue();
host.setKeepAliveTimeout(ka.intValue());
host.setFavourite(addToFavourites.isSelected());
log.fine(String.format("New host %s", host.toString()));
clearAndHide();
}
else
{
// user closed dialog or clicked cancel
host = null;
log.warning("Closed or canceled");
clearAndHide();
}
}
}
public void addTerminalFactory(TerminalFactory termFactory)
{
for (String type : termFactory.getTerminalTypes())
{
termFactoryList.add(new TermOptsHandler(type, termFactory));
}
}
public static class TermOptsHandler
{
String type;
TerminalFactory termFactory;
TermOptions optsPnl;
public TermOptsHandler(String type, TerminalFactory termFactory)
{
this.type = type;
this.termFactory = termFactory;
optsPnl = termFactory.getOptionsPanel(type);
}
public Component getOptsPanel()
{
return (optsPnl != null & optsPnl instanceof Component) ? (Component) optsPnl : new JPanel();
}
public void setHostOptions(Host host)
{
String pnlType = optsPnl.getTermType();
host.setTermType(pnlType != null ? pnlType : type);
host.addProperties(optsPnl.getProperties());
host.getProperty("t6530.service.choice");
}
public String toString()
{
return type;
}
}
}