private void insertLetterInNonWord(TextBlock tb, char c, int cp) {
WordBlock wb = new WordBlock();
wb.setText("" + c);
tb.insert(wb, cp);
caretBlock = wb;
caretPos = 1;
}
private void addNewWordBlockAfter(TextBlock bpr, char c) {
WordBlock wb = new WordBlock();
wb.setText("" + c);
Block bnx = bpr.next();
bpr.setNext(wb);
wb.setNext(bnx);
caretBlock = wb;
caretPos = 1;
}