TimeSpan.h

#pragma once


#include <libutl/Duration.h>
#include <libutl/Span.h>
#include <libutl/Time.h>


UTL_NS_BEGIN;



class TimeSpan : public ObjectSpan<Time, Duration>
{
    UTL_CLASS_DECL_NT_TPL2(TimeSpan, ObjectSpan, Time, Duration);
    UTL_CLASS_DEFID;

public:
    TimeSpan(const Span<Time, Duration>& rhs)
    {
        _begin = rhs.begin();
        _end = rhs.end();
    }

    TimeSpan(const Time& begin, const Time& end)
    {
        set(begin, end);
    }

    virtual int compare(const Object& rhs) const;

    Duration
    duration() const
    {
        return _end - _begin;
    }

    uint_t numSpanned(const Duration& dur) const;

    uint_t numSpanned(uint_t unit) const;

    void
    shift(const Duration& rhs)
    {
        _begin += rhs;
        _end += rhs;
    }

    bool
    spans(uint_t unit, uint_t num = 1) const
    {
        return (numSpanned(unit) >= num);
    }

    const TimeSpan& operator+=(const Duration& rhs)
    {
        shift(rhs);
        return *this;
    }

    const TimeSpan& operator-=(const Duration& rhs)
    {
        shift(-rhs);
        return *this;
    }
};


UTL_NS_END;