mitkCallbackFromGUIThread.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "mitkCallbackFromGUIThread.h"
#include <mitkLogMacros.h>

mitk::CallbackFromGUIThread *mitk::CallbackFromGUIThread::m_Instance = nullptr;
mitk::CallbackFromGUIThreadImplementation *mitk::CallbackFromGUIThread::m_Implementation = nullptr;

namespace mitk
{
  CallbackFromGUIThread::CallbackFromGUIThread() {}
  CallbackFromGUIThread *CallbackFromGUIThread::GetInstance()
  {
    if (!m_Instance)
    {
      m_Instance = new CallbackFromGUIThread();
    }

    return m_Instance;
  }

  void CallbackFromGUIThread::RegisterImplementation(CallbackFromGUIThreadImplementation *implementation)
  {
    m_Implementation = implementation;
  }

  void CallbackFromGUIThread::CallThisFromGUIThread(itk::Command *cmd, itk::EventObject *e)
  {
    if (m_Implementation)
    {
      m_Implementation->CallThisFromGUIThread(cmd, e);
    }
    else
    {
      MITK_ERROR << "in mitk::CallbackFromGUIThread::CallbackFromGUIThread(): no implementation registered."
                 << std::endl;
    }
  }

} // namespace