cxActiveData.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#include "cxActiveData.h"
#include "cxImage.h"
#include "cxTrackedStream.h"
#include "cxPatientStorage.h"
#include "cxReporter.h"
#include "cxPatientModelService.h"

namespace cx
{

// --------------------------------------------------------
ActiveDataPtr ActiveData::mNull; 
// --------------------------------------------------------

class ActiveDataNull: public ActiveData
{
public:
        ActiveDataNull() :
                ActiveData(PatientModelService::getNullObject(), SessionStorageService::getNullObject()) {}
        virtual QList<DataPtr> getActiveDataHistory() const
        {
                printWarning("getActiveDataHistory");
                return QList<DataPtr>();
        }
        virtual DataPtr getActive() const
        {
                printWarning("getActive");
                return DataPtr();
        }
        virtual DataPtr getActiveUsingRegexp(QString typeRegexp) const
        {
                printWarning("getActiveUsingRegexp(QString)");
                return DataPtr();
        }
        virtual ImagePtr getDerivedActiveImage() const
        {
                printWarning("getDerivedActiveImage");
                return ImagePtr();
        }
        virtual void setActive(DataPtr activeData)
        {
                printWarning("setActive");
        }
        virtual QString getActiveImageUid()
        {
                printWarning("getActiveImageUid");
                return QString();
        }
        virtual void remove(DataPtr dataToBeRemoved)
        {
                printWarning("remove");
        }
        void printWarning(QString warning = "") const
        {
//              reportWarning("Trying to use ActiveDataNull. Function: " + warning);
        }
        static ActiveDataPtr getNullObject();
        virtual bool isNull() const
        {
                return true;
        }
};

//---------------------------------------------------------
//-------  ActiveData  ------------------------------------
//---------------------------------------------------------


ActiveData::ActiveData(PatientModelServicePtr patientModelService, SessionStorageServicePtr sessionStorageService) :
        mStorage(new PatientStorage(sessionStorageService, "ActiveData", true)),
        mPatientModelService(patientModelService)
{
        mStorage->storeVariable("activeUids",
                                                        boost::bind(&ActiveData::getStringToSave, this),
                                                        boost::bind(&ActiveData::loadFromString, this, _1));
}

QString ActiveData::getStringToSave() const
{
        return this->getActiveDataStringList().join(" ");
}

QStringList ActiveData::getActiveDataStringList() const
{
        QStringList retval;
        if(!mActiveData.isEmpty())
                for(int i = 0; i < mActiveData.size(); ++i)
                        retval << mActiveData.at(i)->getUid();
        return retval;
}

void ActiveData::loadFromString(const QString activeDatas)
{
        mActiveData.clear();
        QStringList activeDataList = activeDatas.split(" ");
        for(int i = 0; i < activeDataList.size(); ++i)
        {
                DataPtr data = mPatientModelService->getData(activeDataList.at(i));
                this->setActive(data);
        }
}

QList<DataPtr> ActiveData::getActiveDataHistory() const
{
        return mActiveData;
}

DataPtr ActiveData::getActive() const
{
        if(mActiveData.isEmpty())
                return DataPtr();
        return mActiveData.last();
}

DataPtr ActiveData::getActiveUsingRegexp(QString typeRegexp) const
{
        QList<DataPtr> activeDatas = getActiveDataHistory(typeRegexp);

        DataPtr activeData;
        if(!activeDatas.isEmpty())
                activeData = activeDatas.last();

        return activeData;
}

ImagePtr ActiveData::getDerivedActiveImage() const
{
        DataPtr activeData = this->getActiveUsingRegexp("image|trackedStream");
        ImagePtr retval;
        TrackedStreamPtr stream = boost::dynamic_pointer_cast<TrackedStream>(activeData);
        if(stream)
                retval = stream->getChangingImage();
        else
                retval = boost::dynamic_pointer_cast<Image>(activeData);
        return retval;
}

QList<DataPtr> ActiveData::getActiveDataHistory(QString typeRegexp) const
{
        QRegExp reg(typeRegexp);
        QList<DataPtr> active = this->getActiveDataHistory();
        QList<DataPtr> retval;

        for(int i = 0; i < active.size(); ++i)
        {
                DataPtr current = active[i];
                if(current->getType().contains(reg))
                        retval.push_back(current);
        }

        return retval;
}

void ActiveData::setActive(DataPtr activeData)
{
        if (!activeData)
                return;
        if (!mActiveData.empty() && mActiveData.last() == activeData)
                return;

        mActiveData.removeAll(activeData);
        mActiveData.append(activeData);

        this->emitSignals(activeData);
}

void ActiveData::setActive(QString uid)
{
        DataPtr dataToSet = mPatientModelService->getData(uid);
        this->setActive(dataToSet);
}

QString ActiveData::getActiveImageUid()
{
        ImagePtr image = this->getActive<Image>();
        if (image)
                return image->getUid();
        else
                return "";
}

void ActiveData::emitSignals(DataPtr activeData)
{
        this->emitActiveDataChanged();
        if(activeData && activeData->getType() == Image::getTypeName())
                this->emitActiveImageChanged();
}

void ActiveData::emitActiveImageChanged()
{
        DataPtr activeData = ActiveData::getActive<Image>();
        QString uid = getChangedUid(activeData);
        emit activeImageChanged(uid);
}

void ActiveData::emitActiveDataChanged()
{
        DataPtr activeData = this->getActive();
        QString uid = getChangedUid(activeData);
        emit activeDataChanged(uid);
}

QString ActiveData::getChangedUid(DataPtr activeData) const
{
        QString uid = "";
        if(activeData)
                uid = activeData->getUid();
        return uid;
}

void ActiveData::remove(DataPtr dataToBeRemoved)
{
        if(!dataToBeRemoved)
                reportWarning("ActiveData::remove: No data");
        if(!mActiveData.contains(dataToBeRemoved))
                return;

        bool resendActiveImage = false;
        bool resendActiveData = false;
        if (this->getActive<Image>() == dataToBeRemoved)
                resendActiveImage = true;
        if(this->getActive() == dataToBeRemoved)
                resendActiveData = true;

        mActiveData.removeAll(dataToBeRemoved);

        if(resendActiveImage)
                emitActiveImageChanged();
        if(resendActiveData)
                emitActiveDataChanged();
}

ActiveDataPtr ActiveData::getNullObject()
{
        if (!mNull)
                mNull.reset(new ActiveDataNull);
        return mNull;
}

}//cx