nptime.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
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 * This file is part of the Helix DNA Technology. RealNetworks is the 
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#ifndef _NPTIME_H_
#define _NPTIME_H_

class NPTime
{
public:

    // constructors
    NPTime();
    NPTime(INT32 sec, INT32 uSec);
    NPTime(INT32 mSec);
    NPTime(const char* pTimeString /* format [dd:[hh:[mm:]]]ssss[.uuuuu] */);
    NPTime(const char* pTimeString,
		/* If TRUE, allows format [xyz]['h'|'min'|'s'|'ms'] as in
		   "23min":    */
		BOOL bAllow_h_min_s_ms_units, BOOL& bSucceeded);
    NPTime(const NPTime& lhs);

    // assignment
    NPTime& operator=(const NPTime& lhs);

    // conversion
    operator const char*();
    operator UINT32();

    // arithmetic
    NPTime operator+(const NPTime& lhs);
    NPTime operator-(const NPTime& lhs);
    NPTime& operator+=(const NPTime& lhs);
    NPTime& operator-=(const NPTime& lhs);

    // comparison
    INT32 compare(const NPTime& lhs) const;

    INT32 m_lSecond;
    INT32 m_lMicroSecond;

private:
    void normalize();
    const char* toString();
    void fromString(const char* pNPTimeString);
    void fromMSec(INT32 mSec);
    INT32 toMSec();
    CHXString m_asString;
};

inline BOOL operator==(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) == 0;
}

inline BOOL operator!=(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) != 0;
}

inline BOOL operator<(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) < 0;
}

inline BOOL operator>(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) > 0;
}

inline BOOL operator<=(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) <= 0;
}

inline BOOL operator>=(const NPTime& t1, const NPTime& t2)
{
    return t1.compare(t2) >= 0;
}

#endif /* _NPTIME_H_ */