berryAbstractHandler.h

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

BlueBerry Platform

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.

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

#ifndef BERRYABSTRACTHANDLER_H_
#define BERRYABSTRACTHANDLER_H_

#include "berryIHandler.h"
#include "berryIHandlerListener.h"

#include <org_blueberry_core_commands_Export.h>

namespace berry {

class BERRY_COMMANDS AbstractHandler : public QObject, public IHandler { // ,public EventManager {

  Q_OBJECT
  Q_INTERFACES(berry::IHandler)

public:
  berryObjectMacro(AbstractHandler)

private:

  bool baseEnabled;

  IHandlerListener::Events handlerListeners;

public:

  AbstractHandler();

  void AddHandlerListener(IHandlerListener* handlerListener) override;

  void Dispose() override;

  bool IsEnabled() const override;

  void SetEnabled(const Object::Pointer& evaluationContext) override;

  bool IsHandled() const override;

  void RemoveHandlerListener(IHandlerListener* handlerListener) override;

protected:

  void FireHandlerChanged(const SmartPointer<HandlerEvent>& handlerEvent);

  void SetBaseEnabled(bool state);

  virtual bool HasListeners() const;

};

}

#endif /*BERRYABSTRACTHANDLER_H_*/