AutoStatusCallbackRestorer.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.7.0
// ----------------------------------------------------------------------------
// pcl/AutoStatusCallbackRestorer.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_AutoStatusCallbackRestorer_h
#define __PCL_AutoStatusCallbackRestorer_h
 
 
#include <pcl/Defs.h>
#include <pcl/Diagnostics.h>
 
#include <pcl/StatusMonitor.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
class PCL_CLASS AutoStatusCallbackRestorer
{
public:
 
   explicit AutoStatusCallbackRestorer( StatusMonitor& monitor )
      : m_monitor( monitor )
   {
      Store();
   }
 
   ~AutoStatusCallbackRestorer()
   {
      Restore();
   }
 
   void Restore()
   {
      m_monitor.m_callback = m_callback;
   }
 
   void Store()
   {
      m_callback = m_monitor.m_callback;
   }
 
   StatusMonitor& Monitor() const
   {
      return m_monitor;
   }
 
   StatusCallback* Callback() const
   {
      return m_callback;
   }
 
   AutoStatusCallbackRestorer( const AutoStatusCallbackRestorer& ) = delete;
 
   AutoStatusCallbackRestorer& operator =( const AutoStatusCallbackRestorer& ) = delete;
 
private:
 
   StatusMonitor&  m_monitor;
   StatusCallback* m_callback = nullptr;
};
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif   // __PCL_AutoStatusCallbackRestorer_h
 
// ----------------------------------------------------------------------------
// EOF pcl/AutoStatusCallbackRestorer.h - Released 2024-06-18T15:48:54Z