cxRenderLoop.h

Go to the documentation of this file.

/*=========================================================================
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.
=========================================================================*/
#ifndef CXRENDERLOOP_H
#define CXRENDERLOOP_H

#include "org_custusx_core_view_Export.h"

#include <QObject>
#include "cxForwardDeclarations.h"
class QTimer;
#include <QDateTime>
#include <set>

namespace cx
{
class ViewCollectionWidget;

class org_custusx_core_view_EXPORT RenderLoop : public QObject
{
        Q_OBJECT
public:
        RenderLoop();
        void start();
        void stop();
        bool isRunning() const;
        void setRenderingInterval(int interval);
        void setSmartRender(bool val); 
        void setLogging(bool on);

        void clearViews();
        void addLayout(ViewCollectionWidget* layout);

        CyclicActionLoggerPtr getRenderTimer() { return mCyclicLogger; }

//public slots:
//      void requestPreRenderSignal();

signals:
        void preRender();
        void fps(int number); 
        void renderFinished();

private slots:
        void timeoutSlot();

private:
        void sendRenderIntervalToTimer(int interval);
        void emitPreRenderIfRequested();
        void renderViews();
        bool pollForSmartRenderingThisCycle();
        int calculateTimeToNextRender();
        void emitFPSIfRequired();
        void dumpStatistics();

        QTimer* mTimer; 
        QDateTime mLastFullRender;
        QDateTime mLastBeginRender;

        CyclicActionLoggerPtr mCyclicLogger;

        bool mSmartRender;
//      bool mPreRenderSignalRequested;
        int mBaseRenderInterval;
        bool mLogging;

//      typedef std::set<ViewPtr> ViewSet;
//      ViewSet mViews;
        std::vector<QPointer<ViewCollectionWidget> > mLayoutWidgets;
};

typedef boost::shared_ptr<RenderLoop> RenderLoopPtr;

} // namespace cx


#endif // CXRENDERLOOP_H