Editor Kit mystery? I don't get it.

From:

"fiziwig" <fiziwig@yahoo.com>

Newsgroups:

comp.lang.java.programmer

Date:

17 Aug 2006 11:00:15 -0700

Message-ID:

<1155837615.419828.138800@m79g2000cwm.googlegroups.com>

I build a JTextPane which is editable, save it to a file, and load it
back after which it's editing behavior is completely whacked out.

The text region is originally built like this:

 ...
 textRegion = new JTextPane();
 StyledDocument doc = textRegion.getStyledDocument();
 MutableAttributeSet attr = new SimpleAttributeSet();
 StyleConstants.setForeground(attr, Color.black);
 if ( text!=null ) {
 try {
 doc.insertString(doc.getLength(), text, attr);
 }
 catch (BadLocationException ble) {
 System.err.println("Couldn't insert initial text into
text pane.");
 }
 }
 ...

After which I can edit the text and change font, size, color, bold, and
italic.

Then I save the contents as a string put into a larger XML file like
this:

 public String getXmlText() {

 // translate content and all its embedded style attributes into
XML
 // Using class: MinimalHTMLWriter

 CharArrayWriter writer = null;
 try {
 writer = new CharArrayWriter();
 MinimalHTMLWriter htmlWriter = new
MinimalHTMLWriter(writer, (StyledDocument)textRegion.getDocument());
 htmlWriter.write();
 }
 catch (IOException ex) {
 System.out.println("Save error");
 }
 catch (BadLocationException ex) {
 System.out.println("HTML File Corrupt");
 }
 finally {
 if (writer != null) {
 writer.close();
 }
 }
 return writer.toString();
 }

Then I reload the contents from HTML String in the saved XML file like
this:

 public void setXmlText( String text ) {
 // Translate HTML in "text" into styled document
 System.out.println(text);
 CharArrayReader reader = new CharArrayReader(
text.toCharArray() );
 textRegion.setContentType("text/html");
 textRegion.setText(text);
 }

After which the editing of the text in the JTextPane is completely
messed up.
For example, I type the text "16 point", highlight it and set it to 16
point
font and what ends up in the saved document looks like this:

 
 
 1
 
 
 6
 
 

 
 
 p
 
 
 o
 
 
 i
 
 
 n
 
 
 t
 

 

Not only the wrong font size, but tages inserted between every
single character I type! Why is this behving so strangely?

Thanks for any insights.

--gary