Hallo, ich hab folgenden Quellcode bekommen, der einen TextEditor darstellt. Wie kann ich einen StringText in diesen Editor setzen, sodass er als normaler Text editierbar sich in dem Fenster befindet:
Der Quellcode:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import java.io.*;
/**
*
*/
public class EditorExample
extends JPanel
{
private Document doc;
private JEditorPane pane;
private JLabel statusInfo;
public EditorExample() {
setLayout(new BorderLayout());
add(createMenuBar(), BorderLayout.NORTH);
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
statusInfo = new JLabel(" ");
panel.add(statusInfo, BorderLayout.SOUTH);
// Setup Text Pane
doc = new PlainDocument();
pane = new JEditorPane();
pane.setDocument(doc);
panel.add(new JScrollPane(pane), BorderLayout.CENTER);
add(panel, BorderLayout.CENTER);
}
private JMenuBar createMenuBar() {
JMenuBar menuBar = new JMenuBar();
// DATEI Menu
JMenu file = new JMenu(„Datei“);
JMenuItem item = new JMenuItem („Neu“);
file.add(item);
item.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
doNewCommand();
}
});
file.add (item = new JMenuItem („Öffne“));
item.addActionListener (new ActionListener() {
public void actionPerformed (ActionEvent e) {
doOpenCommand();
}
});
file.add (item = new JMenuItem („Load Text“));
item.addActionListener (new ActionListener() {
public void actionPerformed (ActionEvent e) {
doLoadCommand();
}
});
file.add (item = new JMenuItem („Speichern“));
item.addActionListener (new ActionListener() {
public void actionPerformed (ActionEvent e) {
doSaveCommand();
}
});
file.addSeparator();
file.add (item = new JMenuItem („Ende“));
item.addActionListener (new ActionListener() {
public void actionPerformed (ActionEvent e) {
doCloseCommand();
}
});
menuBar.add(file);
JMenu edit = new JMenu(„Bearbeiten“);
edit.add(item = new JMenuItem („Ausschneiden“));
item.addActionListener(new ActionListener() {
public void actionPerformed (ActionEvent e) {
// doCutCommand();
}
});
menuBar.add(edit);
return menuBar;
}
public void doNewCommand() {
doc = new PlainDocument();
pane.setDocument(doc);
validate();
}
public void doCloseCommand() {
System.exit (0);
}
public void doOpenCommand() {
try {
FileInputStream fis = new FileInputStream („doc.ser“);
ObjectInputStream ois = new ObjectInputStream (fis);
doc = (PlainDocument)ois.readObject();
ois.close();
pane.setDocument (doc);
validate();
statusInfo.setText („Reloaded from disk“);
} catch (Exception e) {
statusInfo.setText („Unable to reload“);
e.printStackTrace();
}
}
public void doSaveCommand() {
try {
FileOutputStream fos = new FileOutputStream („doc.ser“);
ObjectOutputStream oos = new ObjectOutputStream (fos);
oos.writeObject (doc);
oos.flush();
oos.close();
statusInfo.setText („Saved to disk“);
} catch (IOException e) {
statusInfo.setText („Unable to save“);
e.printStackTrace();
}
}
public void doLoadCommand() {
String msg;
FileDialog file = new FileDialog (
new Frame(), „Load File“, FileDialog.LOAD);
file.setFile ("*.java"); // Set initial filename filter
file.show(); // Blocks
String curFile;
if ((curFile = file.getFile()) != null) {
String filename = file.getDirectory() + curFile;
char[] data;
setCursor (Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
File f = new File (filename);
try {
doc = new PlainDocument();
pane.setDocument (doc);
// Read in text file
FileReader fin = new FileReader (f);
BufferedReader br = new BufferedReader (fin);
char buffer[] = new char[4096];
int len;
while ((len = br.read (buffer, 0, buffer.length)) != -1) {
// Insert into pane
doc.insertString(doc.getLength(),
new String (buffer, 0, len), null);
}
statusInfo.setText ("Loaded: " + filename);
} catch (BadLocationException exc) {
statusInfo.setText ("Error loading: " + filename);
} catch (FileNotFoundException exc) {
statusInfo.setText ("File Not Found: " + filename);
} catch (IOException exc) {
statusInfo.setText ("IOException: " + filename);
}
setCursor (Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
}
public static void main (String args[]) {
JFrame frame = new JFrame(„Beispiel für einen Editor“);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.addComponentListener(new ComponentAdapter() {
public void componentResized(ComponentEvent e) {
System.out.println("componentResized: " + e);
}
});
Container contentPane = frame.getContentPane();
contentPane.setLayout(new BorderLayout());
//contentPane.add(new LAFPanel(frame,false), BorderLayout.SOUTH);
EditorExample edit = new EditorExample();
contentPane.add(edit, BorderLayout.CENTER);
frame.setSize(600,400);
frame.setVisible(true);
}
}
Vielen Dank für eine Antwort
Gruß
Manfred
