private static int getSpinnerBaseline(JSpinner spinner, int height) {
JComponent editor = spinner.getEditor();
if (editor instanceof JSpinner.DefaultEditor) {
JSpinner.DefaultEditor defaultEditor = (JSpinner.DefaultEditor) editor;
JTextField tf = defaultEditor.getTextField();
Insets spinnerInsets = spinner.getInsets();
Insets editorInsets = defaultEditor.getInsets();
int offset = spinnerInsets.top + editorInsets.top;
height -= (offset + spinnerInsets.bottom + editorInsets.bottom);
if (height <= 0) {
return -1;
}
return offset + getSingleLineTextBaseline(tf, height);
}
Insets insets = spinner.getInsets();
FontMetrics fm = spinner.getFontMetrics(spinner.getFont());
return insets.top + fm.getAscent();
}