| -rw-r--r-- | library/quuid.cpp | 133 |
1 files changed, 107 insertions, 26 deletions
diff --git a/library/quuid.cpp b/library/quuid.cpp index 46fd816..36469a8 100644 --- a/library/quuid.cpp +++ b/library/quuid.cpp @@ -38,109 +38,190 @@ Creates an UUID with the value specified by the parameters, \a l, \a w1, \a w2, \a b1, \a b2, \a b3, \a b4, \a b5, \a b6, \a b7, \a b8. Example: \code // {67C8770B-44F1-410A-AB9A-F9B5446F13EE} QUuid IID_MyInterface( 0x67c8770b, 0x44f1, 0x410a, 0xab, 0x9a, 0xf9, 0xb5, 0x44, 0x6f, 0x13, 0xee ) \endcode */ /*! \fn QUuid::QUuid( const QUuid &orig ) Creates a copy of the QUuid \a orig. */ + #ifndef QT_NO_QUUID_STRING + /*! Creates a QUuid object from the string \a text. Right now, the function can only convert the format {12345678-1234-1234-1234-123456789ABC} and will create the null UUID when the conversion fails. */ QUuid::QUuid( const QString &text ) { bool ok; QString temp = text.upper(); data1 = temp.mid( 1, 8 ).toULong( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; + if ( !ok ) + { + *this = QUuid(); + return; } data2 = temp.mid( 10, 4 ).toUInt( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; + if ( !ok ) + { + *this = QUuid(); + return; } data3 = temp.mid( 15, 4 ).toUInt( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; + if ( !ok ) + { + *this = QUuid(); + return; } data4[0] = temp.mid( 20, 2 ).toUInt( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; + if ( !ok ) + { + *this = QUuid(); + return; } data4[1] = temp.mid( 22, 2 ).toUInt( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; + if ( !ok ) + { + *this = QUuid(); + return; } - for ( int i = 2; i<8; i++ ) { - data4[i] = temp.mid( 25 + (i-2)*2, 2 ).toUShort( &ok, 16 ); - if ( !ok ) { - *this = QUuid(); - return; - } + for ( int i = 2; i<8; i++ ) + { + data4[i] = temp.mid( 25 + (i-2)*2, 2 ).toUShort( &ok, 16 ); + if ( !ok ) + { + *this = QUuid(); + return; + } } } -#endif + /*! \fn QUuid QUuid::operator=(const QUuid &uuid ) Assigns the value of \a uuid to this QUuid object. */ /*! \fn bool QUuid::operator==(const QUuid &other) const Returns TRUE if this QUuid and the \a other QUuid are identical, otherwise returns FALSE. */ /*! \fn bool QUuid::operator!=(const QUuid &other) const Returns TRUE if this QUuid and the \a other QUuid are different, otherwise returns FALSE. */ -#ifndef QT_NO_QUUID_STRING + /*! QString QUuid::toString() const Returns a string in {12345678-1234-1234-1234-123456789ABC} format. */ QString QUuid::toString() const { QString result; result = "{" + QString::number( data1, 16 ).rightJustify( 8, '0' ) + "-"; result += QString::number( (int)data2, 16 ).rightJustify( 4, '0' ) + "-"; result += QString::number( (int)data3, 16 ).rightJustify( 4, '0' ) + "-"; result += QString::number( (int)data4[0], 16 ).rightJustify( 2, '0' ); result += QString::number( (int)data4[1], 16 ).rightJustify( 2, '0' ) + "-"; for ( int i = 2; i < 8; i++ ) - result += QString::number( (int)data4[i], 16 ).rightJustify( 2, '0' ); + result += QString::number( (int)data4[i], 16 ).rightJustify( 2, '0' ); return result + "}"; } #endif + /*! Returns TRUE if this is the null UUID {00000000-0000-0000-0000-000000000000}, otherwise returns FALSE. */ bool QUuid::isNull() const { return data4[0] == 0 && data4[1] == 0 && data4[2] == 0 && data4[3] == 0 && - data4[4] == 0 && data4[5] == 0 && data4[6] == 0 && data4[7] == 0 && - data1 == 0 && data2 == 0 && data3 == 0; + data4[4] == 0 && data4[5] == 0 && data4[6] == 0 && data4[7] == 0 && + data1 == 0 && data2 == 0 && data3 == 0; +} + + +/*! + \fn QUuid::Variant QUuid::variant() const + + Returns the variant of the UUID. + The null UUID is considered to be of an unknown variant. + + \sa version() +*/ +QUuid::Variant QUuid::variant() const +{ + if ( isNull() ) + return VarUnknown; + // Check the 3 MSB of data4[0] + if ( (data4[0] & 0x80) == 0x00 ) return NCS; + else if ( (data4[0] & 0xC0) == 0x80 ) return DCE; + else if ( (data4[0] & 0xE0) == 0xC0 ) return Microsoft; + else if ( (data4[0] & 0xE0) == 0xE0 ) return Reserved; + return VarUnknown; +} + +/*! + \fn bool QUuid::operator<(const QUuid &other) const + + Returns TRUE if this QUuid is of the same variant, + and lexicographically before the \a other QUuid; + otherwise returns FALSE. + + \sa variant() +*/ +#define ISLESS(f1, f2) if (f1!=f2) return (f1<f2); +bool QUuid::operator<(const QUuid &other ) const +{ + if ( variant() != other.variant() ) + return FALSE; + + ISLESS( data1, other.data1 ); + ISLESS( data2, other.data2 ); + ISLESS( data3, other.data3 ); + for ( int n = 0; n < 8; n++ ) + { + ISLESS( data4[n], other.data4[n] ); + } + return FALSE; +} + +/*! + \fn bool QUuid::operator>(const QUuid &other) const + + Returns TRUE if this QUuid is of the same variant, + and lexicographically after the \a other QUuid; + otherwise returns FALSE. + + \sa variant() +*/ +#define ISMORE(f1, f2) if (f1!=f2) return (f1>f2); +bool QUuid::operator>(const QUuid &other ) const +{ + if ( variant() != other.variant() ) + return FALSE; + + ISMORE( data1, other.data1 ); + ISMORE( data2, other.data2 ); + ISMORE( data3, other.data3 ); + for ( int n = 0; n < 8; n++ ) + { + ISMORE( data4[n], other.data4[n] ); + } + return FALSE; } |