How to get line number of current cursor?

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JessyCute - 19 Apr 2006 05:11 GMT

I try to get the line number of current that cursor is on from the
JEditorPane.
I found method getSelectionStart() and getSelectedText(), but it not
has the getSelectedLine() or ...

So, anyone know how to get the current line number that cursor is on.
Thanks.

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Robert Blixt - 19 Apr 2006 07:02 GMT

Perhaps this might help..
http://seminars.jguru.com/forums/view.jsp?EID=1247896

Regards,
Robert

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Thomas Weidenfeller - 19 Apr 2006 09:39 GMT

> I try to get the line number of current that cursor is on from the
> JEditorPane.
> I found method getSelectionStart() and getSelectedText(), but it not
> has the getSelectedLine() or ...

This depends on your document. E.g. if you use a
javax.swing.text.PlainDocument, then it should be easy:

JEditorPane editor = ...
PlainDocument doc = (PlainDocument) editor.getDocument();
int offset = editor.getCaretPosition();
int lineNbr = doc.getDefaultRootElement().getElementIndex(offset);

Other document types behave totally different. E.g. HTMLDocument builds
a hierarchical Element structure where each Element represents a
structural block of HTML, and not just a line of text.

/Thomas

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How to get line number of current cursor?

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