Provides a set of more complex operations (mathematical functions) for the parser (sqrt, sin, cos, etc). More...

#include <QtxEvalExpr.h>

Inheritance diagram for QtxEvalSetMath:

Public Member Functions
	QtxEvalSetMath ()
	Constructor. More...

virtual	~QtxEvalSetMath ()
	Destructor. More...

virtual bool	createValue (const QString &, QVariant &) const
	Create value from its string representation. More...

virtual int	priority (const QString &, bool isBin) const
	Get the operation priority. More...

virtual QtxEvalExpr::Error	calculate (const QString &, QVariant &, QVariant &) const
	Calculate the operation. More...

virtual QString	name () const
	Get operations set name. More...

Public Member Functions inherited from QtxEvalSetBase
	QtxEvalSetBase ()
	Constructor. More...

virtual	~QtxEvalSetBase ()
	Destructor. More...

virtual void	operationList (QStringList &) const
	Get the list of possible operations. More...

virtual void	bracketsList (QStringList &, bool open) const
	Get list of brackets. More...

virtual QtxEvalExpr::Error	isValid (const QString &, const QVariant::Type, const QVariant::Type) const
	Check operation validity. More...

Public Member Functions inherited from QtxEvalSet
	QtxEvalSet ()
	Constructor. More...

virtual	~QtxEvalSet ()
	Destructor. More...

virtual QString	name () const =0
	Get unique operations set name. More...

virtual void	operationList (QStringList &) const =0
	Get the list of possible operations. More...

virtual void	bracketsList (QStringList &, bool open) const =0
	Get list of brackets. More...

virtual bool	createValue (const QString &, QVariant &) const
	Create value from its string representation. More...

virtual int	priority (const QString &, bool isBin) const =0
	Get the operation priority. More...

virtual QtxEvalExpr::Error	isValid (const QString &, const QVariant::Type, const QVariant::Type) const =0
	Check operation validity. More...

virtual QtxEvalExpr::Error	calculate (const QString &, QVariant &, QVariant &) const =0
	Calculate the operation. More...

Static Public Member Functions
static QString	Name ()
	Get operations set name. More...

Additional Inherited Members
Protected Types inherited from QtxEvalSetBase
typedef QList< QVariant::Type >	ListOfTypes

Protected Member Functions inherited from QtxEvalSetBase
void	addTypes (const ListOfTypes &)
	Add operand types. More...

void	addOperations (const QStringList &)
	Add operation names to the internal list of operations. More...

Detailed Description

Provides a set of more complex operations (mathematical functions) for the parser (sqrt, sin, cos, etc).

Constructor & Destructor Documentation

◆ QtxEvalSetMath()

QtxEvalSetMath::QtxEvalSetMath ( )

Constructor.

References QtxEvalSetBase::addOperations(), and QtxEvalSetBase::addTypes().

◆ ~QtxEvalSetMath()

QtxEvalSetMath::~QtxEvalSetMath ( )

virtual

Destructor.

Member Function Documentation

◆ calculate()

QtxEvalExpr::Error QtxEvalSetMath::calculate	(	const QString &	op,
		QVariant &	,
		QVariant &	v2
	)		const

virtual

Calculate the operation.

Process binary operation with values v1 and v2. For unary operation the \v2 is invalid. The result of the operation is returned in the parameter v1.

Parameters

op	operation name
v1	first argument (not valid for unary prefix operations)
v2	second argument (not valid for unary postfix operations)

Returns: error code (QtxEvalExpr::Error)

Implements QtxEvalSet.

References QtxEvalExpr::InvalidResult, and QtxEvalExpr::OK.

◆ createValue()

bool QtxEvalSetMath::createValue	(	const QString &	str,
		QVariant &	val
	)		const

virtual

Create value from its string representation.

Creates numbers from string representation.

Parameters

str	string representration of the value
val	returning value

Returns: true if str can be evaluated as custom value and false otherwise (parameter)

Reimplemented from QtxEvalSet.

References QtxEvalSet::createValue().

◆ Name()

QString QtxEvalSetMath::Name ( )

static

Get operations set name.

Returns: operations set name

◆ name()

QString QtxEvalSetMath::name ( ) const

virtual

Get operations set name.

Returns: operations set name

Implements QtxEvalSet.

References Name().

◆ priority()

int QtxEvalSetMath::priority	(	const QString &	op,
		bool	isBin
	)		const

virtual

Get the operation priority.

Operation priority counts from 1. If the operation is impossible, this function returns value <= 0.

Parameters

op	operation
isBin	`true` if the operation is binary and `false` if it is unary

Returns: operation priority

Implements QtxEvalSet.

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

src/Qtx/QtxEvalExpr.h
src/Qtx/QtxEvalExpr.cxx

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QtxEvalSetMath()

◆ ~QtxEvalSetMath()

Member Function Documentation

◆ calculate()

◆ createValue()

◆ Name()

◆ name()

◆ priority()