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import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
/**
* @author Andreas Spirka, Sven Eisenhauer
* Dialog zum �ndern und L�schen von Benutzern
*/
public class ChgUserDlg extends AbstractMyJDlg implements ListSelectionListener
{
Container c;
JPanel contentPane;
BorderLayout borderLayout1 = new BorderLayout();
int counter = 0;
UserCon users = new UserCon(); // Objekt-Container und TableModel
JScrollPane scrollPane = new JScrollPane(); // Scroll-Pane
JTable table = new JTable(); // Tabelle
JPanel jPanelSouth = new JPanel();
JLabel jLabelSelection = new JLabel();
JTextField jTextFieldAuswahl = new JTextField();
String fName = new String ("user.dat");
JButton delB = new JButton("L�schen");
JButton saveB = new JButton("Speichern");
JButton abbrB = new JButton("Abbrechen");
JComboBox comboBox = new JComboBox(User.sRole);
JTextField tf = new JTextField();
DefaultCellEditor cellEd = new DefaultCellEditor(tf);
DefaultCellEditor comboEd = new DefaultCellEditor(comboBox);
ChgUserDlg() {
ButtonListener2 bl = new ButtonListener2(this);
c = getContentPane();
setModal(true);
c.setLayout(borderLayout1);
setSize(new Dimension(600, 300));
setTitle("Benutzer �ndern / l�schen");
jPanelSouth.setBorder(BorderFactory.createEtchedBorder());
jLabelSelection.setText("Auswahl");
jTextFieldAuswahl.setText("kein Benutzer ausgew�hlt");
c.add( scrollPane, java.awt.BorderLayout.CENTER );
scrollPane.setVerticalScrollBarPolicy( JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED );
scrollPane.getViewport().add( table ); // Table in Scroll-Pane
c.add(jPanelSouth, java.awt.BorderLayout.SOUTH);
jPanelSouth.add(delB);
jPanelSouth.add(saveB);
jPanelSouth.add(abbrB);
delB.addActionListener(bl);
abbrB.addActionListener(bl);
saveB.addActionListener(bl);
saveB.setActionCommand("Speichern");
delB.setActionCommand("L�schen");
abbrB.setActionCommand("Abbrechen");
try {
FileInputStream fis = new FileInputStream(fName);
ObjectInputStream ois = new ObjectInputStream(fis);
users = (UserCon) ois.readObject();
ois.close();
fis.close();
} catch (Exception exception) { exception.printStackTrace(); }
table.setModel( users ); // Model f�r Tabelle setzen
// Einzelauswahl
table.setSelectionMode( ListSelectionModel.SINGLE_SELECTION );
ListSelectionModel lsm = table.getSelectionModel();
lsm.addListSelectionListener( this ); // TableModelListener regitrieren
table.setCellSelectionEnabled(true);
TableColumn loginColumn = table.getColumnModel().getColumn(0);
TableColumn pwColumn = table.getColumnModel().getColumn(1);
TableColumn fullNamColumn = table.getColumnModel().getColumn(2);
TableColumn uidColumn = table.getColumnModel().getColumn(3);
TableColumn roleColumn = table.getColumnModel().getColumn(4);
loginColumn.setCellEditor(cellEd);
pwColumn.setCellEditor(cellEd);
fullNamColumn.setCellEditor(cellEd);
uidColumn.setCellEditor(cellEd);
roleColumn.setCellEditor(comboEd);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension frameSize = getSize();
setLocation((screenSize.width/2)-(frameSize.width/2),(screenSize.height/2)-(frameSize.height/2));
setVisible(true);
}
/* (non-Javadoc)
* @see AbstractMyJDlg#buttonActionPerformed(java.awt.event.ActionEvent)
*/
public void buttonActionPerformed(ActionEvent e) {
if (e.getActionCommand().equals("Abbrechen"))
{
setVisible(false);
}
else if(e.getActionCommand().equals("L�schen"))
{
table.removeEditor();
users.removeUser((User) users.elementAt(table.getSelectedRow()));
try {
FileOutputStream fos = new FileOutputStream(fName);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(users);
oos.close();
fos.close();
} catch (Exception exception) { exception.printStackTrace(); }
}
else if(e.getActionCommand().equals("Speichern"))
{
if (table.isEditing()) {
table.getCellEditor().stopCellEditing();
}
table.removeEditor();
table.clearSelection();
try {
FileOutputStream fos = new FileOutputStream(fName);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(users);
oos.close();
fos.close();
} catch (Exception exception) { exception.printStackTrace(); }
}
}
/* (non-Javadoc)
* @see javax.swing.event.ListSelectionListener#valueChanged(javax.swing.event.ListSelectionEvent)
*/
public void valueChanged( ListSelectionEvent e )
{
/* in der H�rsaal�bung kam es hier zum Crash, wenn eine Zeile
* ausgew�hlt war und eine neue hinzugef�gt wurde. In diesem
* Fall ist die erste und zuletzt ausgew�hlte Zeile identisch.
* Das wir hier abgefangen.
*/
/*if ( e.getFirstIndex() == e.getLastIndex() ) {
jTextFieldAuswahl.setText( "kein Benutzer ausgew�hlt");
return;
}
String login = (String) table.getValueAt(table.getSelectedRow(), 0);
String nam = (String) table.getValueAt(table.getSelectedRow(), 2);
this.jTextFieldAuswahl.setText( login + " (" + nam + ")" );*/
}
}
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