QgsNumericFormat Class Reference

A numeric formatter allows for formatting a numeric value for display, using a variety of different formatting techniques (e.g. More...

#include <qgsnumericformat.h>

Inheritance diagram for QgsNumericFormat:

Public Member Functions
	QgsNumericFormat ()=default
virtual	~QgsNumericFormat ()=default
virtual QgsNumericFormat *	clone () const =0
	Clones the format, returning a new object.
virtual QVariantMap	configuration (const QgsReadWriteContext &context) const =0
	Returns the current configuration of the formatter.
virtual QgsNumericFormat *	create (const QVariantMap &configuration, const QgsReadWriteContext &context) const =0
	Creates a new copy of the format, using the supplied configuration.
virtual QString	formatDouble (double value, const QgsNumericFormatContext &context) const =0
	Returns a formatted string representation of a numeric double value.
virtual QString	id () const =0
	Returns a unique id for this numeric format.
bool	operator!= (const QgsNumericFormat &other) const
bool	operator== (const QgsNumericFormat &other) const
virtual int	sortKey ()
	Returns a sorting key value, where formats with a lower sort key will be shown earlier in lists.
virtual double	suggestSampleValue () const
	Returns a suggested sample value which nicely represents the current format configuration.
virtual QString	visibleName () const =0
	Returns the translated, user-visible name for this format.
void	writeXml (QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const
	Writes the format to an XML element.

Static Protected Attributes
static constexpr int	DEFAULT_SORT_KEY = 100

Detailed Description

A numeric formatter allows for formatting a numeric value for display, using a variety of different formatting techniques (e.g.

as scientific notation, currency values, percentage values, etc)

This is an abstract base class and will always need to be subclassed.

Since

QGIS 3.12

Definition at line 278 of file qgsnumericformat.h.

Constructor & Destructor Documentation

QgsNumericFormat()

QgsNumericFormat::QgsNumericFormat ( )

default

~QgsNumericFormat()

virtual QgsNumericFormat::~QgsNumericFormat ( )

virtualdefault

Member Function Documentation

clone()

virtual QgsNumericFormat * QgsNumericFormat::clone ( ) const

pure virtual

Clones the format, returning a new object.

The caller takes ownership of the returned object.

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

configuration()

virtual QVariantMap QgsNumericFormat::configuration ( const QgsReadWriteContext &  context ) const

pure virtual

Returns the current configuration of the formatter.

This value can be used in a call to create() in order to recreate this formatter in its current state.

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

create()

virtual QgsNumericFormat * QgsNumericFormat::create ( const QVariantMap &  configuration, const QgsReadWriteContext &  context  ) const

pure virtual

Creates a new copy of the format, using the supplied configuration.

The caller takes ownership of the returned object.

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

formatDouble()

virtual QString QgsNumericFormat::formatDouble ( double  value, const QgsNumericFormatContext &  context  ) const

pure virtual

Returns a formatted string representation of a numeric double value.

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

id()

virtual QString QgsNumericFormat::id ( ) const

pure virtual

Returns a unique id for this numeric format.

This id is used to identify this numeric format in the registry with QgsNumericFormatRegistry::format().

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

operator!=()

bool QgsNumericFormat::operator!=

(

const QgsNumericFormat &

other

)

const

Definition at line 82 of file qgsnumericformat.cpp.

operator==()

bool QgsNumericFormat::operator==

(

const QgsNumericFormat &

other

)

const

Definition at line 77 of file qgsnumericformat.cpp.

sortKey()

int QgsNumericFormat::sortKey ( )

virtual

Returns a sorting key value, where formats with a lower sort key will be shown earlier in lists.

Generally, subclasses should return QgsNumericFormat::sortKey() as their sorting key.

Reimplemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

Definition at line 59 of file qgsnumericformat.cpp.

suggestSampleValue()

double QgsNumericFormat::suggestSampleValue ( ) const

virtual

Returns a suggested sample value which nicely represents the current format configuration.

Reimplemented in QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsFractionNumericFormat, and QgsPercentageNumericFormat.

Definition at line 64 of file qgsnumericformat.cpp.

visibleName()

virtual QString QgsNumericFormat::visibleName ( ) const

pure virtual

Returns the translated, user-visible name for this format.

Implemented in QgsBasicNumericFormat, QgsBearingNumericFormat, QgsGeographicCoordinateNumericFormat, QgsCurrencyNumericFormat, QgsExpressionBasedNumericFormat, QgsFallbackNumericFormat, QgsFractionNumericFormat, QgsPercentageNumericFormat, and QgsScientificNumericFormat.

writeXml()

void QgsNumericFormat::writeXml	(	QDomElement &	element,
		QDomDocument &	document,
		const QgsReadWriteContext &	context
	)		const

Writes the format to an XML element.

See also

QgsNumericFormatRegistry::createFromXml()

Definition at line 69 of file qgsnumericformat.cpp.

Member Data Documentation

DEFAULT_SORT_KEY

constexpr int QgsNumericFormat::DEFAULT_SORT_KEY = 100

staticconstexprprotected

Definition at line 372 of file qgsnumericformat.h.

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

• /build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/core/numericformats/qgsnumericformat.h
• /build/qgis-3.41.0+git20241122+3440c17df1d+99sid/src/core/numericformats/qgsnumericformat.cpp