DefaultStyledDocument trim problem

Question

Hi all,
JTextPane pane = new JTextPane();
DefaultStyledDocument temp = new DefaultStyledDocument();
temp = (DefaultStyledDocument) pane.getDocument();
is there any way to trim the document, like string.
I wnat to trim the spaces and new empty lines in the end of the document.
I can getText from document and trim it but the problem is I am loosing style of the document.
any idea ???
thanks

Answer 1

Element e = temp.getDefaultRootElement();
Element e2;
String str;
int length;
int len = e.getElementCount();
boolean done = false;
for(int = len-1;i>=0, done == false;i--) {
        done = true;
     e2 = e.getElement(i);
     if(e.isLeaf()) {
          length = e.getEndOffset() - e.getStartOffset();
          str = temp.getText(e.getStartOffset(), length);
          if(str.trim().equals("")) {
               temp.remove(e.getStartOffset(), length);
               temp.insertString(e.getStartOffset(), str.trim(), e.getAttributes());
                        done = false;
}That should do it, but it's not something you'd want to run regularly.
But then again, if you're trying to do this repeatedly, then why aren't you simply trimming the text before it is added to the document?