animation.h

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#pragma once
#include <xtd/diagnostics/stopwatch.h>
#include "animation_update_event_handler.h"
#include "control.h"
#include "timer.h"
 
namespace xtd {
  namespace forms {
    class animation : public xtd::forms::control {
    public:
      animation();
      
      drawing::size default_size() const override {return {200, 100};}
      
      virtual int64_t elapsed_milliseconds() const;
      
      virtual int32_t frame_counter() const;
      
      virtual int32_t frames_per_second() const;
      virtual animation& frames_per_second(int32_t value);
      
      virtual bool is_running() const;
      
      void start();
      
      void stop();
 
      xtd::event<animation, animation_updated_event_handler> updated;
      
    protected:
      virtual void on_updated(const xtd::forms::animation_updated_event_args& e);
      
    private:
      void on_frames_timer_tick(object& timer, const xtd::event_args& e);
      
      int32_t frame_counter_ = 0;
      int32_t frames_per_second_ = 10;
      xtd::diagnostics::stopwatch stopwatch_;
      xtd::forms::timer frames_timer_;
    };
  }
}