cxActiveData.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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#ifndef CXACTIVEDATA_H
#define CXACTIVEDATA_H

#include "cxResourceExport.h"
#include <QObject>
#include <QList>
#include "boost/shared_ptr.hpp"
#include "cxSessionStorageService.h"

namespace cx
{
typedef boost::shared_ptr<class ActiveData> ActiveDataPtr;
typedef boost::shared_ptr<class Data> DataPtr;
typedef boost::shared_ptr<class Image> ImagePtr;
typedef boost::shared_ptr<class PatientStorage> PatientStoragePtr;

class cxResource_EXPORT ActiveData : public QObject
{
        Q_OBJECT
public:
        ActiveData(PatientModelServicePtr patientModelService, SessionStorageServicePtr sessionStorageService);
        virtual QList<DataPtr> getActiveDataHistory() const;
        virtual DataPtr getActive() const;
        virtual DataPtr getActiveUsingRegexp(QString typeRegexp) const;
        template <class DATA>
        boost::shared_ptr<DATA> getActive() const;
        virtual ImagePtr getDerivedActiveImage() const;
        virtual void setActive(DataPtr activeData);
        virtual void setActive(QString uid);
        virtual QString getActiveImageUid();
        virtual void remove(DataPtr dataToBeRemoved);

        static ActiveDataPtr getNullObject();
        virtual bool isNull() const { return false;}
signals:
        void activeImageChanged(const QString& uId);
        void activeDataChanged(const QString& uId);

private:
        QList<DataPtr> mActiveData;
        PatientStoragePtr mStorage;
        PatientModelServicePtr mPatientModelService;
        static ActiveDataPtr mNull;

        void emitSignals(DataPtr activeData);
        void emitActiveDataChanged();
        void emitActiveImageChanged();
        QString getChangedUid(DataPtr activeData) const;
        QList<DataPtr> getActiveDataHistory(QString typeRegexp) const;
        QString getStringToSave() const;
        QStringList getActiveDataStringList() const;
        void loadFromString(const QString activeDatas);
};

template <class DATA>
boost::shared_ptr<DATA> ActiveData::getActive() const
{
        boost::shared_ptr<DATA> retval;
        QList<DataPtr> activeDataList = this->getActiveDataHistory();
        for(int i = activeDataList.size() - 1; i >= 0; --i)
        {
                retval = boost::dynamic_pointer_cast<DATA>(activeDataList.at(i));
                if(retval)
                        return retval;
        }
        return retval;
}


} //cx

#endif // CXACTIVEDATA_H