timer.h

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#pragma once
#include "component.h"
#include <xtd/chrono>
#include <xtd/event>
#include <xtd/event_handler>
#include <xtd/time_span>
#include <cstdint>
#include <memory>
 
namespace xtd {
  namespace forms {
    class forms_export_ timer : public component {
      struct data;
      
    public:
      
      timer();
      
      timer(timer&&) = default;
      timer(const timer&) = delete;
      ~timer();
      
      
      virtual bool enabled() const noexcept;
      virtual timer& enabled(bool enabled);
      
      virtual time_span interval() const noexcept;
      timer& interval(const time_span& interval);
 
      virtual int32 interval_milliseconds() const noexcept;
      virtual timer& interval_milliseconds(int32 interval);
      
      
      void start();
      
      void stop();
      
      
      static timer create();
      static timer create(const time_span& interval);
      static timer create(const time_span& interval, bool enable);
      static timer create(int interval_milliseconds);
      static timer create(int interval_milliseconds, bool enable);
      
      
      event<timer, event_handler> tick;
      
    protected:
      
      virtual void on_tick(const event_args& e);
      
    private:
      void restart();
      
      std::shared_ptr<data> data_;
    };
  }
}