// Event forwarding. We need it if user does press-and-drag gesture for opening popup and
// choosing item there.
// It works in JComboBox, here we provide the same behavior
private void dispatchEventToPopup(MouseEvent e) {
if (myPopup != null && myPopup.isVisible()) {
JComponent content = myPopup.getContent();
Rectangle rectangle = content.getBounds();
Point location = rectangle.getLocation();
SwingUtilities.convertPointToScreen(location, content);
Point eventPoint = e.getLocationOnScreen();
rectangle.setLocation(location);
if (rectangle.contains(eventPoint)) {
MouseEvent event =
SwingUtilities.convertMouseEvent(e.getComponent(), e, myPopup.getContent());
Component component =
SwingUtilities.getDeepestComponentAt(content, event.getX(), event.getY());
if (component != null) component.dispatchEvent(event);
}
}
}
