QKnxDateTime Class

The QKnxDateTime class is a datapoint type for the date and time. 更多...

头：	#include <QKnxDateTime>
qmake:	QT += knx
继承：	QKnxFixedSizeDatapointType

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公共类型

enum	Attribute { Fault, WorkingDay, NoWorkingDay, NoYear, NoDate, …, StandardSummerTime }
flags	属性
枚举类	ClockQuality { WithoutExtendedSyncSignal, WithExtendedSyncSignal }

公共函数

	QKnxDateTime (const QDate & date , const QKnxTime24 & time , QKnxDateTime::Attributes 属性 , QKnxDateTime::ClockQuality quality )
	QKnxDateTime ()
QKnxDateTime::Attributes	attributes () const
QKnxDateTime::ClockQuality	clockQuality () const
QDate	date () const
void	setAttributes (QKnxDateTime::Attributes 属性 )
void	setClockQuality (QKnxDateTime::ClockQuality quality )
bool	setDate (const QDate & date )
bool	setTime (const QKnxTime24 & time )
bool	setValue (const QDate & date , const QKnxTime24 & time , QKnxDateTime::Attributes 属性 , QKnxDateTime::ClockQuality quality )
QKnxTime24	time () const

重实现公共函数

virtual bool

isValid () const override

详细描述

This is a fixed size datapoint type with the length of 8 bytes.

Valid dates are from Monday, 1900-01-01 to Wednesday, 2155-12-31 , and valid times are from Any day, 00:00:00 to Sunday, 24:00:00 .

另请参阅 QKnxDatapointType and Qt KNX Datapoint Type Classes .

成员类型文档编制

enum QKnxDateTime:: Attribute
flags QKnxDateTime:: 属性

This enum type holds the date attributes.

常量	值	描述
`QKnxDateTime::Fault`	`0x00`	Set if one or more supported fields of the date and time information are corrupted.
`QKnxDateTime::WorkingDay`	`0x01`	Set to indicate a working day.
`QKnxDateTime::NoWorkingDay`	`0x02`	Set if the Working day field is not valid.
`QKnxDateTime::NoYear`	`0x04`	Set if the Year field is not valid.
`QKnxDateTime::NoDate`	`0x08`	Set if the Month and Day of the Month field are not valid.
`QKnxDateTime::NoDayOfWeek`	`0x10`	Set if the Day of week field is not valid.
`QKnxDateTime::NoTime`	`0x20`	Set if the Hour of day, Minutes and Seconds fields are not valid.
`QKnxDateTime::StandardSummerTime`	`0x40`	Standard Summer Time is only an attribute for information and visualization. In the hour field, summer-time correction is already considered. Therefore, no hour offset shall be added by the receiver if Standard Summer Time Information is set.

The Attributes type is a typedef for QFlags <Attribute>. It stores an OR combination of Attribute values.

enum class QKnxDateTime:: ClockQuality

This enum type holds whether the device sending date and time information sends signals which are synchronized (time to time) with an external date and time information source.

常量	值	描述
`QKnxDateTime::ClockQuality::WithoutExtendedSyncSignal`	`0`	Clock without an external synchronization signal. The device sending date & time information has a local clock, which can be inaccurate.
`QKnxDateTime::ClockQuality::WithExtendedSyncSignal`	`0x01`	Clock with an external synchronization signal (like DCF77, videotext). Also an externally synchronized clock should send `CLQ = 0` after start-up (until reception of first synchronization signal) or after a synchronization timeout.

成员函数文档编制

QKnxDateTime:: QKnxDateTime (const QDate & date , const QKnxTime24 & time , QKnxDateTime::Attributes 属性 , QKnxDateTime::ClockQuality quality )

Creates a fixed size datapoint type with the date set to date , time to time , attributes to 属性 , and clock quality to quality .

QKnxDateTime:: QKnxDateTime ()

Creates a fixed size datapoint type with the date set to 2000, 0, 0 , the time set to 0 ,0 , the clock quality set to WithoutExtendedSyncSignal , and an empty list of attributes.

QKnxDateTime::Attributes QKnxDateTime:: attributes () const

Returns the additional information stored in the datapoint type as a list of attributes.

另请参阅 setAttributes ().

QKnxDateTime::ClockQuality QKnxDateTime:: clockQuality () const

Returns the clock quality stored in the datapoint type.

另请参阅 setClockQuality ().

QDate QKnxDateTime:: date () const

Returns the date stored in the datapoint type.

另请参阅 setDate ().

`[override virtual]` bool QKnxDateTime:: isValid () const

重实现： QKnxDatapointType::isValid () const.

void QKnxDateTime:: setAttributes ( QKnxDateTime::Attributes 属性 )

Sets the additional information of the datapoint type to the list of attributes specified by 属性 .

另请参阅 attributes ().

void QKnxDateTime:: setClockQuality ( QKnxDateTime::ClockQuality quality )

Sets the clock quality to quality .

另请参阅 clockQuality ().

bool QKnxDateTime:: setDate (const QDate & date )

Sets the date stored in the datapoint type to date .

If the value is outside the allowed range, returns false and does not set the value.

另请参阅 date ().

bool QKnxDateTime:: setTime (const QKnxTime24 & time )

Sets the time stored in the datapoint type to time .