HTML Editor

From	"=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this>
Subject	HTML Editor
Message-ID	<ek2rfh$4s0$1@online.de> (permalink)
Newsgroups	comp.lang.java.gui
Date	2011-04-27 15:25 +0000
Organization	TDS.net

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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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HTML Editor "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this> - 2011-04-27 15:25 +0000
  Re: HTML Editor "usenet" <usenet@THRWHITE.remove-dii-this> - 2011-04-27 15:25 +0000
    Re: HTML Editor "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this> - 2011-04-27 15:25 +0000
      Re: HTML Editor "usenet" <usenet@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
        Re: HTML Editor "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
          Re: HTML Editor "usenet" <usenet@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
            Re: HTML Editor "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
              Re: HTML Editor "usenet" <usenet@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000
                Re: HTML Editor "=?ISO-8859-1?Q?Martin_G=E" <=?iso-8859-1?q?martin_g=e@THRWHITE.remove-dii-this> - 2011-04-27 15:26 +0000

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