QtPdCom::ScalarVariable< T > Class Template Reference

Scalar Value Template. More...

#include <ScalarVariable.h>

Inheritance diagram for QtPdCom::ScalarVariable< T >:

Collaboration diagram for QtPdCom::ScalarVariable< T >:

Public Member Functions
	ScalarVariable (QObject *parent=nullptr)
	Constructor.
virtual	~ScalarVariable ()
	Destructor.
void	clearData ()
bool	hasData () const
T	getValue () const
std::chrono::nanoseconds	getMTime () const
void	inc ()
	Increments the current value and writes it to the process.
Public Member Functions inherited from QtPdCom::AbstractScalarVariable
template<typename T>
std::enable_if< std::is_arithmetic< T >::value, void >::type	copyData (T &dest) const
Public Member Functions inherited from QtPdCom::ScalarSubscriber
	ScalarSubscriber ()
	Constructor.
virtual	~ScalarSubscriber ()
	Destructor.
void	setVariable (PdCom::Variable pv, const PdCom::Selector &selector={}, const Transmission &=event_mode, double scale=1.0, double offset=0.0, double tau=0.0)
	Subscribe to a process variable via variable.
void	setVariable (PdCom::Process *process, const QString &path, const PdCom::Selector &selector={}, const Transmission &=event_mode, double scale=1.0, double offset=0.0, double tau=0.0)
	Subscribe to a process variable via process and path.
void	clearVariable ()
	Unsubscribe from a Variable.
bool	hasVariable () const
	Subscription active.
virtual void	stateChange (PdCom::Subscription::State)
template<class T>
void	writeValue (T)
	Write a value to the process.
double	getFilterConstant () const
PdCom::Variable	getVariable () const
const void *	getData () const
Q_INVOKABLE bool	poll ()
	Poll an active subscription.

Private Member Functions
void	newValues (std::chrono::nanoseconds) override
	This virtual method is called if the process variable's value changed.

Private Attributes
T	value
	Current value.
std::chrono::nanoseconds	mTime
	Modification Time of Current value.
bool	dataPresent
	There is a process value to display.

Additional Inherited Members
Signals inherited from QtPdCom::AbstractScalarVariable
void	valueChanged ()
	Emitted, when the value changes, or the variable is disconnected.
Protected Member Functions inherited from QtPdCom::ScalarSubscriber
const PdCom::Selector &	getSelector () const
Protected Attributes inherited from QtPdCom::ScalarSubscriber
double	scale
double	offset

Detailed Description

template<class T>
class QtPdCom::ScalarVariable< T >

Scalar Value Template.

Constructor & Destructor Documentation

ScalarVariable()

template<class T>

QtPdCom::ScalarVariable< T >::ScalarVariable

(

QObject *

parent = nullptr

)

Constructor.

References dataPresent, and value.

~ScalarVariable()

template<class T>

QtPdCom::ScalarVariable< T >::~ScalarVariable ( )

virtual

Destructor.

Member Function Documentation

clearData()

template<class T>

void QtPdCom::ScalarVariable< T >::clearData

(

)

References dataPresent, value, and QtPdCom::AbstractScalarVariable::valueChanged().

getMTime()

template<class T>

std::chrono::nanoseconds QtPdCom::ScalarVariable< T >::getMTime ( ) const

inline

Returns

The current Modification Time.

References mTime.

getValue()

template<class T>

T QtPdCom::ScalarVariable< T >::getValue ( ) const

inline

Returns

The current value.

References value.

Referenced by QtPdCom::MessageModel::Impl::stateChanged().

hasData()

template<class T>

bool QtPdCom::ScalarVariable< T >::hasData ( ) const

inline

Returns

true, if data are present.

References dataPresent.

Referenced by QtPdCom::MessageModel::Impl::stateChanged().

inc()

template<class T>

void QtPdCom::ScalarVariable< T >::inc

(

)

Increments the current value and writes it to the process.

This does not update value directly.

References value, and QtPdCom::ScalarSubscriber::writeValue().

newValues()

template<class T>

void QtPdCom::ScalarVariable< T >::newValues ( std::chrono::nanoseconds ts )

overrideprivatevirtual

This virtual method is called if the process variable's value changed.

Implements QtPdCom::ScalarSubscriber.

References QtPdCom::AbstractScalarVariable::copyData(), dataPresent, mTime, QtPdCom::ScalarSubscriber::offset, QtPdCom::ScalarSubscriber::scale, value, and QtPdCom::AbstractScalarVariable::valueChanged().

Member Data Documentation

dataPresent

template<class T>

bool QtPdCom::ScalarVariable< T >::dataPresent

private

There is a process value to display.

Referenced by clearData(), hasData(), newValues(), and ScalarVariable().

mTime

template<class T>

std::chrono::nanoseconds QtPdCom::ScalarVariable< T >::mTime

private

Modification Time of Current value.

Referenced by getMTime(), and newValues().

value

template<class T>

T QtPdCom::ScalarVariable< T >::value

private

Current value.

Referenced by clearData(), getValue(), inc(), newValues(), and ScalarVariable().

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The documentation for this class was generated from the following file:

• QtPdCom1/ScalarVariable.h