private void checkCompletion(java.awt.event.KeyEvent ke) throws BadLocationException { Document doc = getDocument(); Element root = doc.getDefaultRootElement(); int pos = getCaretPosition(); int lineIdx = root.getElementIndex(pos); Element line = root.getElement(lineIdx); int start = line.getStartOffset(), len = line.getEndOffset() - start; String strLine = doc.getText(start, len - 1); Debug.log(9, "[" + strLine + "]"); if (strLine.endsWith("find") && ke.getKeyChar() == '(') { ke.consume(); doc.insertString(pos, "(", null); ButtonCapture btnCapture = new ButtonCapture(this, line); insertComponent(btnCapture); doc.insertString(pos + 2, ")", null); } }