pqInterfaceTracker.h

Go to the documentation of this file.

// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause
#ifndef pqInterfaceTracker_h
#define pqInterfaceTracker_h
 
#include "pqCoreModule.h"
#include <QObject>
 
class vtkObject;
 
class PQCORE_EXPORT pqInterfaceTracker : public QObject
{
  Q_OBJECT
  typedef QObject Superclass;
 
public:
  pqInterfaceTracker(QObject* parent = nullptr);
  ~pqInterfaceTracker() override;
 
  QObjectList interfaces() const { return this->Interfaces + this->RegisteredInterfaces; }
 
  template <class T>
  QList<T> interfaces() const
  {
    QList<T> list;
    QObjectList objList = this->interfaces();
    Q_FOREACH (QObject* object, objList)
    {
      if (object && qobject_cast<T>(object))
      {
        list.push_back(qobject_cast<T>(object));
      }
    }
    return list;
  }
 
  void addInterface(QObject* iface);
 
  void removeInterface(QObject* iface);
 
  void initialize();
Q_SIGNALS:
  void interfaceRegistered(QObject* iface);
 
protected:
  void onPluginLoaded(vtkObject*, unsigned long, void* calldata);
 
  QObjectList Interfaces;
  QObjectList RegisteredInterfaces;
  unsigned long ObserverID;
 
private:
  Q_DISABLE_COPY(pqInterfaceTracker)
};
 
#endif