24#ifndef COMMON_WIDGETS_BUSY_INDICATOR__H
25#define COMMON_WIDGETS_BUSY_INDICATOR__H
50 using FACTORY = std::function<std::unique_ptr<BUSY_INDICATOR>()>;
A class that can be used to implement a "busy" indicator.
std::function< std::unique_ptr< BUSY_INDICATOR >()> FACTORY
A factory function that returns a new busy indicator.
virtual ~BUSY_INDICATOR()=default
This class is intended to be handled by pointer-to-base class.