protected override void OnMouseLeave (EventArgs e)
{
if (popupButtonState == PopupButtonState.Up)
popupButtonState = PopupButtonState.Normal;
Invalidate ();
base.OnMouseLeave (e);
}
protected override void OnClick (EventArgs e)
{
popupButtonState = PopupButtonState.Down;
Invalidate ();
base.OnClick (e);
}
protected override void OnMouseEnter (EventArgs e)
{
if (popupButtonState != PopupButtonState.Down)
popupButtonState = PopupButtonState.Up;
PopupButtonPanel panel = Parent as PopupButtonPanel;
if (panel.focusButton != null && panel.focusButton.ButtonState == PopupButtonState.Up) {
panel.focusButton.ButtonState = PopupButtonState.Normal;
panel.SetFocusButton (null);
}
Invalidate ();
base.OnMouseEnter (e);
}