elapsedtime.hxx

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#ifndef INCLUDED_CANVAS_ELAPSEDTIME_HXX
#define INCLUDED_CANVAS_ELAPSEDTIME_HXX
 
#include <canvas/canvastoolsdllapi.h>
#include <memory>
 
namespace canvas::tools
{
        class CANVASTOOLS_DLLPUBLIC ElapsedTime
        {
        public:
            ElapsedTime();
 
            ElapsedTime( std::shared_ptr<ElapsedTime> xTimeBase );
 
            void reset();
 
            double getElapsedTime() const;
 
            void pauseTimer();
 
            void continueTimer();
 
            void adjustTimer( double fOffset );
 
            void holdTimer();
 
            void releaseTimer();
 
        private:
            static double getSystemTime();
            double getCurrentTime() const;
            double getElapsedTimeImpl() const; // does not set m_fLastQueriedTime
 
            const std::shared_ptr<ElapsedTime>  m_pTimeBase;
 
            mutable double                          m_fLastQueriedTime;
 
            double                                  m_fStartTime;
 
            double                                  m_fFrozenTime;
 
            bool                                    m_bInPauseMode;
 
            bool                                    m_bInHoldMode;
        };
 
}
 
#endif /* INCLUDED_CANVAS_ELAPSEDTIME_HXX */
 
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