QgsExpression::FunctionDef Struct Reference

#include <qgsexpression.h>

Collaboration diagram for QgsExpression::FunctionDef:

List of all members.

Public Member Functions
	FunctionDef (QString fnname, int params, FcnEval fcn, QString group, QString helpText=QString(), bool usesGeometry=false)
Public Attributes
FcnEval	mFcn
	Pointer to funntion.
QString	mGroup
	The group the function belongs to.
QString	mHelpText
	The help text for the function.
QString	mName
	The name of the function.
int	mParams
	The number of parameters this function takes.
bool	mUsesGeometry
	Does this function use a geometry object.

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Detailed Description

Definition at line 206 of file qgsexpression.h.

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Constructor & Destructor Documentation

QgsExpression::FunctionDef::FunctionDef	(	QString	fnname,
		int	params,
		FcnEval	fcn,
		QString	group,
		QString	helpText = QString(),
		bool	usesGeometry = false
	)		[inline]

Definition at line 208 of file qgsexpression.h.

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Member Data Documentation

FcnEval QgsExpression::FunctionDef::mFcn

Pointer to funntion.

Note:

not available in python bindings

Definition at line 217 of file qgsexpression.h.

Referenced by QgsExpression::NodeFunction::eval().

QString QgsExpression::FunctionDef::mGroup

The group the function belongs to.

Definition at line 221 of file qgsexpression.h.

Referenced by QgsExpressionBuilderWidget::QgsExpressionBuilderWidget().

QString QgsExpression::FunctionDef::mHelpText

The help text for the function.

Definition at line 223 of file qgsexpression.h.

QString QgsExpression::FunctionDef::mName

The name of the function.

Definition at line 211 of file qgsexpression.h.

Referenced by QgsExpression::NodeFunction::createFromOgcFilter(), QgsExpression::NodeFunction::dump(), QgsExpressionBuilderWidget::QgsExpressionBuilderWidget(), and QgsExpression::NodeFunction::toOgcFilter().

int QgsExpression::FunctionDef::mParams

The number of parameters this function takes.

Definition at line 213 of file qgsexpression.h.

Referenced by QgsExpression::NodeFunction::dump(), QgsExpressionBuilderWidget::QgsExpressionBuilderWidget(), and QgsExpression::NodeFunction::toOgcFilter().

bool QgsExpression::FunctionDef::mUsesGeometry

Does this function use a geometry object.

Definition at line 219 of file qgsexpression.h.

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

• src/core/qgsexpression.h