. This is my code: HTMLDocument htmlDoc = (HTMLDocument) textEditor.getDocument(); int position = textEditor.getSelectionStart(); Element elem = htmlDoc.getParagraphElement(position); if( elem instanceof HTMLDocument.BlockElement ) { HTMLDocument.BlockElement block = (HTMLDocument.BlockElement)elem; int start, end; String text; try { start = block.getStartOffset(); end = block.getEndOffset(); text = htmlDoc.getText( start, end-start ); htmlDoc.setOuterHTML( block, "

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From: "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this>
Subject: HTML Editor
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  To: comp.lang.java.gui
Hello,

i'm currently trying to develop a simple HTML-Editor with JTextPane and 
the HTMLEditorKit provided by Swing.

Actually I want to transform a paragraph <p> to a Heading <h1>. This is 
my code:

HTMLDocument	htmlDoc = (HTMLDocument) textEditor.getDocument();
int		position = textEditor.getSelectionStart();
Element		elem = htmlDoc.getParagraphElement(position);

if( elem instanceof HTMLDocument.BlockElement )
{
     HTMLDocument.BlockElement  block = (HTMLDocument.BlockElement)elem;
     int                        start, end;
     String                     text;

     try
     {
	start = block.getStartOffset();
	end = block.getEndOffset();
	text = htmlDoc.getText( start, end-start );
	htmlDoc.setOuterHTML(
	    block,
	    "<h1>" +
	    text +
	    "</h1>"
	);
     }
     catch( Exception e )
     {
     };
}

This works fine, unless the block does not contain any formating 
information. Thus

     <p>Hello <u>world</u>.</p>

becomes to

     <h1>Hello world.</h1>

Is there a better way to change the type of a block element?

Thanks in advance

Martin


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