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/* Listing3111.java */
import java.awt.*;
import java.awt.event.*;
import java.util.*;
class ModalDialog
extends Dialog
implements ActionListener
{
String result;
public static String OKDialog(Frame owner, String msg)
{
ModalDialog dlg;
dlg = new ModalDialog(owner,"Nachricht",msg,"OK");
dlg.setVisible(true);
return dlg.getResult();
}
public static String YesNoDialog(Frame owner, String msg)
{
ModalDialog dlg;
dlg = new ModalDialog(owner,"Frage",msg,"Ja,Nein");
dlg.setVisible(true);
return dlg.getResult();
}
public static String YesNoCancelDialog(Frame owner,String msg)
{
ModalDialog dlg;
dlg = new ModalDialog(owner,"Frage",msg,"Ja,Nein,Abbruch");
dlg.setVisible(true);
return dlg.getResult();
}
public ModalDialog(
Frame owner,
String title,
String msg,
String buttons
)
{
super(owner, title, true);
//Fenster
setBackground(Color.lightGray);
setLayout(new BorderLayout());
setResizable(false);
Point parloc = owner.getLocation();
setLocation(parloc.x + 30, parloc.y + 30);
//Message
add(new Label(msg), BorderLayout.CENTER);
//Buttons
Panel panel = new Panel();
panel.setLayout(new FlowLayout(FlowLayout.CENTER));
StringTokenizer strtok = new StringTokenizer(buttons,",");
while (strtok.hasMoreTokens()) {
Button button = new Button(strtok.nextToken());
button.addActionListener(this);
panel.add(button);
}
add(panel, BorderLayout.SOUTH);
pack();
}
public void actionPerformed(ActionEvent event)
{
result = event.getActionCommand();
setVisible(false);
dispose();
}
public String getResult()
{
return result;
}
}
public class Listing3111
extends Frame
implements ActionListener
{
public static void main(String[] args)
{
Listing3111 wnd = new Listing3111();
wnd.setVisible(true);
}
public Listing3111()
{
super("Drei modale Standarddialoge");
setLayout(new FlowLayout());
setBackground(Color.lightGray);
Button button = new Button("OKDialog");
button.addActionListener(this);
add(button);
button = new Button("YesNoDialog");
button.addActionListener(this);
add(button);
button = new Button("YesNoCancelDialog");
button.addActionListener(this);
add(button);
setLocation(100,100);
setSize(400,200);
setVisible(true);
}
public void actionPerformed(ActionEvent event)
{
String cmd = event.getActionCommand();
if (cmd.equals("OKDialog")) {
ModalDialog.OKDialog(this,"Dream, dream, dream, ...");
} else if (cmd.equals("YesNoDialog")) {
String ret = ModalDialog.YesNoDialog(
this,
"Programm beenden?"
);
if (ret.equals("Ja")) {
setVisible(false);
dispose();
System.exit(0);
}
} else if (cmd.equals("YesNoCancelDialog")) {
String msg = "Verzeichnis erstellen?";
String ret = ModalDialog.YesNoCancelDialog(this,msg);
ModalDialog.OKDialog(this,"R�ckgabe: " + ret);
}
}
}
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