Timer.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/Timer.h - Released 2024-06-18T15:48:54Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_Timer_h
#define __PCL_Timer_h
 
 
#ifndef __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
#include <pcl/Defs.h>
 
#include <pcl/Control.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS Timer : public UIObject
{
public:
 
   Timer();
 
   ~Timer() override
   {
   }
 
   void EnsureUnique() override
   {
      // Timers are unique objects by definition
   }
 
   static Timer& Null();
 
   double Interval() const;
 
   void SetInterval( double seconds );
 
   bool IsSingleShot() const;
 
   bool IsPeriodic() const
   {
      return !IsSingleShot();
   }
 
   void SetSingleShot( bool = true );
 
   void SetPeriodic( bool p = true )
   {
      SetSingleShot( !p );
   }
 
   bool IsRunning() const;
 
   void Start();
 
   void Stop();
 
   unsigned Count() const
   {
      return count;
   }
 
   // -------------------------------------------------------------------------
   // Event handlers
   //
   // void OnTimer( Timer& sender );
 
   using timer_event_handler = void (Control::*)( Timer& sender );
 
   void OnTimer( timer_event_handler handler, Control& receiver );
 
private:
 
   timer_event_handler onTimer = nullptr;
   unsigned            count = 0;
 
   Timer( void* h ) : UIObject( h )
   {
   }
 
   void* CloneHandle() const override;
 
   friend class TimerEventDispatcher;
};
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_BUILDING_PIXINSIGHT_APPLICATION
 
#endif   // __PCL_Timer_h
 
// ----------------------------------------------------------------------------
// EOF pcl/Timer.h - Released 2024-06-18T15:48:54Z