maybeCaller.hh

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#include <functional>
#include <chrono>
#include <QTimer>

#ifndef MAYBE_CALL_HH
#define MAYBE_CALL_HH

class MaybeCaller : public QObject {
  Q_OBJECT
 private:
  const int MIN_ELAPSED = 16;  /// milliseconds

  std::chrono::system_clock::time_point last_call_time;

  QTimer updateTimer;

  std::function<void(void)> delayed_fn;

 private Q_SLOTS:

  void callViaTimer();

 public:
  MaybeCaller();
  void call(std::function<void(void)> fn);
};

#endif