QgsConditionalLayerStyles Class Reference

The QgsConditionalLayerStyles class holds conditional style information for a layer. More...

#include <qgsconditionalstyle.h>

Inheritance diagram for QgsConditionalLayerStyles:

Signals
void	changed ()
	Emitted when the conditional styles are changed.

Public Member Functions
	QgsConditionalLayerStyles (QObject *parent=nullptr)
	Constructor for QgsConditionalLayerStyles, with the specified parent object.
QgsConditionalStyle	constraintFailureStyles (QgsFieldConstraints::ConstraintStrength strength)
	Returns a style associated to a constraint failure.
QList< QgsConditionalStyle >	fieldStyles (const QString &fieldName) const
	Returns the conditional styles set for the field with matching fieldName.
bool	readXml (const QDomNode &node, const QgsReadWriteContext &context)
	Reads the condition styles state from a DOM node.
QgsConditionalStyles	rowStyles () const
	Returns a list of row styles associated with the layer.
bool	rulesNeedGeometry () const
	Returns true if at least one rule needs geometry.
void	setFieldStyles (const QString &fieldName, const QList< QgsConditionalStyle > &styles)
	Set the conditional styles for a field, with the specified fieldName.
void	setRowStyles (const QgsConditionalStyles &styles)
	Sets the conditional styles that apply to full rows of data in the attribute table.
bool	writeXml (QDomNode &node, QDomDocument &doc, const QgsReadWriteContext &context) const
	Writes the condition styles state to a DOM node.

Detailed Description

The QgsConditionalLayerStyles class holds conditional style information for a layer.

This includes field styles and full row styles.

Definition at line 42 of file qgsconditionalstyle.h.

Constructor & Destructor Documentation

QgsConditionalLayerStyles()

QgsConditionalLayerStyles::QgsConditionalLayerStyles

(

QObject *

parent = nullptr

)

Constructor for QgsConditionalLayerStyles, with the specified parent object.

Definition at line 24 of file qgsconditionalstyle.cpp.

Member Function Documentation

changed

void QgsConditionalLayerStyles::changed ( )

signal

Emitted when the conditional styles are changed.

Since

QGIS 3.10

constraintFailureStyles()

QgsConditionalStyle QgsConditionalLayerStyles::constraintFailureStyles

(

QgsFieldConstraints::ConstraintStrength

strength

)

Returns a style associated to a constraint failure.

Parameters

strength

the type of constraint

Since

QGIS 3.30

Definition at line 29 of file qgsconditionalstyle.cpp.

fieldStyles()

QList< QgsConditionalStyle > QgsConditionalLayerStyles::fieldStyles

(

const QString &

fieldName

)

const

Returns the conditional styles set for the field with matching fieldName.

See also

setFieldStyles()

Definition at line 79 of file qgsconditionalstyle.cpp.

readXml()

bool QgsConditionalLayerStyles::readXml	(	const QDomNode &	node,
		const QgsReadWriteContext &	context
	)

Reads the condition styles state from a DOM node.

See also

writeXml()

Definition at line 128 of file qgsconditionalstyle.cpp.

rowStyles()

QgsConditionalStyles QgsConditionalLayerStyles::rowStyles

(

)

const

Returns a list of row styles associated with the layer.

See also

setRowStyles()

Definition at line 56 of file qgsconditionalstyle.cpp.

rulesNeedGeometry()

bool QgsConditionalLayerStyles::rulesNeedGeometry

(

)

const

Returns true if at least one rule needs geometry.

Since

QGIS 3.26.3

Definition at line 116 of file qgsconditionalstyle.cpp.

setFieldStyles()

void QgsConditionalLayerStyles::setFieldStyles	(	const QString &	fieldName,
		const QList< QgsConditionalStyle > &	styles
	)

Set the conditional styles for a field, with the specified fieldName.

The field value is inserted into a 'value' variable to conduct expression checks.

See also

fieldStyles()

Definition at line 70 of file qgsconditionalstyle.cpp.

setRowStyles()

void QgsConditionalLayerStyles::setRowStyles

(

const QgsConditionalStyles &

styles

)

Sets the conditional styles that apply to full rows of data in the attribute table.

Each row will check be checked against each rule.

See also

rowStyles()

Definition at line 61 of file qgsconditionalstyle.cpp.

writeXml()

bool QgsConditionalLayerStyles::writeXml	(	QDomNode &	node,
		QDomDocument &	doc,
		const QgsReadWriteContext &	context
	)		const

Writes the condition styles state to a DOM node.

See also

readXml()

Definition at line 84 of file qgsconditionalstyle.cpp.

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

• /build/qgis-3.40.0+99sid/src/core/qgsconditionalstyle.h
• /build/qgis-3.40.0+99sid/src/core/qgsconditionalstyle.cpp