CMultiModelObserverBase.h

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/********************************************************************************
**  This file is part of the ICF Framework. Copyright (C) Witold Gantzke & Kirill Lepskiy
**  ICF Framework may be used under the terms of the LGPL License v. 2.1 by the Free Software Foundation.
********************************************************************************/
 
#ifndef imod_CMultiModelObserverBase_included
#define imod_CMultiModelObserverBase_included
 
 
// Qt includes
#include <QtCore/QVector>
#include <QtCore/QReadWriteLock>
 
// ICF includes
#include <imod/IModel.h>
#include <imod/IObserver.h>
 
 
namespace imod
{
 
 
class CMultiModelObserverBase: virtual public IObserver
{
public:
    CMultiModelObserverBase();
    virtual ~CMultiModelObserverBase();
 
    int GetModelCount() const;
 
    IModel* GetObservedModel(int modelIndex) const;
 
    IModel* GetModelPtr(int modelIndex) const;
 
    void EnsureModelsDetached();
 
    void SetObservedIds(const istd::IChangeable::ChangeSet& changeMask);
 
    // reimplemented (imod::IObserver)
    bool IsModelAttached(const IModel* modelPtr) const override;
    bool OnModelAttached(IModel* modelPtr, istd::IChangeable::ChangeSet& changeMask) override;
    bool OnModelDetached(IModel* modelPtr) override;
    void BeforeModelChange(IModel* modelPtr) override;
    void AfterModelChange(IModel* modelPtr, const istd::IChangeable::ChangeSet& changeSet) override;
 
protected:
    virtual void OnUpdate(IModel* modelPtr, const istd::IChangeable::ChangeSet& changeSet);
 
private:
    bool IsAttached(const imod::IModel* modelPtr) const;
 
    typedef QVector<IModel*> Models;
    Models m_models;
 
    istd::IChangeable::ChangeSet m_observedIds;
 
    mutable QReadWriteLock m_mutex;
};
 
 
} // namespace imod
 
 
#endif // !imod_CMultiModelObserverBase_included