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How can I get the position of the caret in the currently selected editor window?

You need to first get the selected node (which if the Editor is selected, should correspond to the file being edited); get the most recent editor pane open on it; and then access the caret:

Node[] n = TopComponent.getRegistry().getActivatedNodes();
if (n.length == 1) {
    EditorCookie ec = (EditorCookie) n[0].getCookie(EditorCookie.class);
    if (ec != null) {
        JEditorPane[] panes = ec.getOpenedPanes();
        if (panes.length > 0) {
            int cursor = panes[0].getCaret().getDot();
            String selection = panes[0].getSelectedText();
            // USE selection
        }
    }
}

Or

org.netbeans.api.editor.EditorRegistry.lastFocusedComponent().getCaretPosition()

How can I get the linenumber/column of the currently selected editor?

        JTextComponent editor = org.netbeans.api.editor.EditorRegistry.lastFocusedComponent();

        //using StyledDocument
        {
            StyledDocument sdocument = (StyledDocument) editor.getDocument();

            int line = NbDocument.findLineNumber(sdocument, editor.getCaretPosition());
            int column = NbDocument.findLineColumn(sdocument, editor.getCaretPosition());
        }
        //using BaseDocument
        {
            try {
                BaseDocument bdocument = Utilities.getDocument(editor);
                int line = Utilities.getLineOffset(bdocument, editor.getCaretPosition());
            } catch (BadLocationException ex) {
                Exceptions.printStackTrace(ex);
            }
        }

Applies to: NetBeans 4.0 and newer

Apache Migration Information

The content in this page was kindly donated by Oracle Corp. to the Apache Software Foundation.

This page was exported from http://wiki.netbeans.org/DevFaqFindCaretPositionInEditor , that was last modified by NetBeans user Markiewb on 2016-03-05T13:25:27Z.

NOTE: This document was automatically converted to the AsciiDoc format on 2018-02-07, and needs to be reviewed.