Method toggle

src/Interface/ComboBox.cpp:359–379

* Opens/closes the combo box list. * @param first Is it the initialization toggle? */

 * @param first Is it the initialization toggle?
 */
void ComboBox::toggle(bool first)
{
	_window->setVisible(!_window->getVisible());
	_list->setVisible(!_list->getVisible());
	_state->setModal(_window->getVisible() ? this : 0);
	if (!first && !_window->getVisible())
	{
		_toggled = true;
	}
	if (_list->getVisible())
	{
		if (_sel < _list->getVisibleRows()/2)
		{
			_list->scrollTo(0);
		}
		else
		{
			_list->scrollTo(_sel - _list->getVisibleRows()/2);
		}
	}
}

/**
 * Sets a function to be called every time the slider's value changes.