How to override DefaultCaret#setBlinkRate()

Question

• I have an problem with Caret, Caret didn\'t blink without focusGained(see code in Swing Action) to 2nd. JTextField and back to 1st. JTextField

• how

Answer 1

But your previous code works OK if setBlinkRate(500); is placed in HighlightCaret class constructor:

class HighlightCaret extends DefaultCaret {

    private static final Highlighter.HighlightPainter unfocusedPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.RED);
    private static final Highlighter.HighlightPainter focusedPainter = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
    private static final long serialVersionUID = 1L;
    private boolean isFocused;

    HighlightCaret(){
     setBlinkRate(500);//Placed here
    }

    @Override
    protected Highlighter.HighlightPainter getSelectionPainter() {
       // setBlinkRate(500); // otherwise is disabled, stopped
        return isFocused ? focusedPainter/*super.getSelectionPainter()*/ : unfocusedPainter;
    }

    @Override
    public void setSelectionVisible(boolean hasFocus) {
        if (hasFocus != isFocused) {
            isFocused = hasFocus;
            super.setSelectionVisible(false);
            super.setSelectionVisible(true);
        }
    }
}

Tested in Java7 WinXP. Have you tried it?