Highlighting text in JTextPane

Hi all, (sorry if this is similar post from others).
I'm trying to highlight text from when it is selected by the mouse, I want it to work by first I click a button to go in "text highlighting mode" then I select the text by pressing the mouse at the start of the selection and then releasing it - voila highlighted text..
I ain't got it right here, anyone know the fix?
//Create ActionListener for drawLine Button
          drawLine.addActionListener(
          new ActionListener() {
          //Do some highlighting
          public void actionPerformed( ActionEvent event ) {
                        if( event.getSource() == drawLine );
                         text_chat.addMouseListener( new MouseAdapter() {
                         public void mousePressed( MouseEvent e ) {
                         //text_chat.setSelectedTextColor( Color.green );
                         change.highlight( text_chat.getSelectionStart(), text_chat.getSelectionEnd() );
                             String strStart = "" + text_chat.getSelectionStart();
                             String strEnd = "" + text_chat.getSelectionStart();
                             sendHighlight( strStart, strEnd );
                         public void mouseReleased( MouseEvent e ) {
                         change.highlight( text_chat.getSelectionStart(), text_chat.getSelectionEnd() );
                             String strStart = "" + text_chat.getSelectionStart();
                             String strEnd = "" + text_chat.getSelectionStart();
                             sendHighlight( strStart, strEnd );
                             //Parse back Integer start = Integer.parseInt(strStart);
          );thanks..

hi,
can you send me the hole source too figure your problem out.
thx

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