QgsRendererCategory Class Reference

Represents an individual category (class) from a QgsCategorizedSymbolRenderer. More...

#include <qgscategorizedsymbolrenderer.h>

Public Member Functions
	QgsRendererCategory ()=default
	QgsRendererCategory (const QgsRendererCategory &cat)
	QgsRendererCategory (const QVariant &value, QgsSymbol *symbol, const QString &label, bool render=true, const QString &uuid=QString())
	Constructor for a new QgsRendererCategory, with the specified value and symbol.
	~QgsRendererCategory ()
QString	dump () const
	Returns a string representing the categories settings, used for debugging purposes only.
QString	label () const
	Returns the label for this category, which is used to represent the category within legends and the layer tree.
QgsRendererCategory &	operator= (QgsRendererCategory cat)
bool	renderState () const
	Returns true if the category is currently enabled and should be rendered.
void	setLabel (const QString &label)
	Sets the label for this category, which is used to represent the category within legends and the layer tree.
void	setRenderState (bool render)
	Sets whether the category is currently enabled and should be rendered.
void	setSymbol (QgsSymbol *s)
	Sets the symbol which will be used to render this category.
void	setValue (const QVariant &value)
	Sets the value corresponding to this category.
QgsSymbol *	symbol () const
	Returns the symbol which will be used to render this category.
void	toSld (QDomDocument &doc, QDomElement &element, QVariantMap props) const
	Converts the category to a matching SLD rule, within the specified DOM document and element.
QString	uuid () const
	Returns the unique identifier for this category.
QVariant	value () const
	Returns the value corresponding to this category.

Protected Attributes
QString	mLabel
bool	mRender = true
std::unique_ptr< QgsSymbol >	mSymbol
QString	mUuid
QVariant	mValue

Detailed Description

Represents an individual category (class) from a QgsCategorizedSymbolRenderer.

Definition at line 35 of file qgscategorizedsymbolrenderer.h.

Constructor & Destructor Documentation

QgsRendererCategory() [1/3]

QgsRendererCategory::QgsRendererCategory ( )

default

QgsRendererCategory() [2/3]

QgsRendererCategory::QgsRendererCategory	(	const QVariant &	value,
		QgsSymbol *	symbol,
		const QString &	label,
		bool	render = true,
		const QString &	uuid = QString()
	)

Constructor for a new QgsRendererCategory, with the specified value and symbol.

If value is a list, then the category will match any of the values from this list.

The ownership of symbol is transferred to the category.

The label argument specifies the label used for this category in legends and the layer tree.

The render argument indicates whether the category should initially be rendered and appear checked in the layer tree.

The optional uuid argument manually set the UUID key identifier for the category (since QGIS 3.34).

Definition at line 49 of file qgscategorizedsymbolrenderer.cpp.

QgsRendererCategory() [3/3]

QgsRendererCategory::QgsRendererCategory

(

const QgsRendererCategory &

cat

)

Definition at line 58 of file qgscategorizedsymbolrenderer.cpp.

~QgsRendererCategory()

QgsRendererCategory::~QgsRendererCategory ( )

default

Member Function Documentation

dump()

QString QgsRendererCategory::dump

(

)

const

Returns a string representing the categories settings, used for debugging purposes only.

Definition at line 124 of file qgscategorizedsymbolrenderer.cpp.

label()

QString QgsRendererCategory::label

(

)

const

Returns the label for this category, which is used to represent the category within legends and the layer tree.

See also

setLabel()

Definition at line 94 of file qgscategorizedsymbolrenderer.cpp.

operator=()

QgsRendererCategory & QgsRendererCategory::operator=

(

QgsRendererCategory

cat

)

Definition at line 67 of file qgscategorizedsymbolrenderer.cpp.

renderState()

bool QgsRendererCategory::renderState

(

)

const

Returns true if the category is currently enabled and should be rendered.

See also

setRenderState()

Definition at line 99 of file qgscategorizedsymbolrenderer.cpp.

setLabel()

void QgsRendererCategory::setLabel

(

const QString &

label

)

Sets the label for this category, which is used to represent the category within legends and the layer tree.

See also

label()

Definition at line 114 of file qgscategorizedsymbolrenderer.cpp.

setRenderState()

void QgsRendererCategory::setRenderState

(

bool

render

)

Sets whether the category is currently enabled and should be rendered.

See also

renderState()

Definition at line 119 of file qgscategorizedsymbolrenderer.cpp.

setSymbol()

void QgsRendererCategory::setSymbol

(

QgsSymbol *

s

)

Sets the symbol which will be used to render this category.

Ownership of the symbol is transferred to the category.

See also

symbol()

Definition at line 109 of file qgscategorizedsymbolrenderer.cpp.

setValue()

void QgsRendererCategory::setValue

(

const QVariant &

value

)

Sets the value corresponding to this category.

If value is a list, then the category will match any of the values from this list.

See also

value()

Definition at line 104 of file qgscategorizedsymbolrenderer.cpp.

symbol()

QgsSymbol * QgsRendererCategory::symbol

(

)

const

Returns the symbol which will be used to render this category.

See also

setSymbol()

Definition at line 89 of file qgscategorizedsymbolrenderer.cpp.

toSld()

void QgsRendererCategory::toSld	(	QDomDocument &	doc,
		QDomElement &	element,
		QVariantMap	props
	)		const

Converts the category to a matching SLD rule, within the specified DOM document and element.

Definition at line 129 of file qgscategorizedsymbolrenderer.cpp.

uuid()

QString QgsRendererCategory::uuid

(

)

const

Returns the unique identifier for this category.

Since

QGIS 3.34

Definition at line 79 of file qgscategorizedsymbolrenderer.cpp.

value()

QVariant QgsRendererCategory::value

(

)

const

Returns the value corresponding to this category.

If the returned value is a list, then the category will match any of the values from this list.

See also

setValue()

Definition at line 84 of file qgscategorizedsymbolrenderer.cpp.

Member Data Documentation

mLabel

QString QgsRendererCategory::mLabel

protected

Definition at line 152 of file qgscategorizedsymbolrenderer.h.

mRender

bool QgsRendererCategory::mRender = true

protected

Definition at line 153 of file qgscategorizedsymbolrenderer.h.

mSymbol

std::unique_ptr<QgsSymbol> QgsRendererCategory::mSymbol

protected

Definition at line 151 of file qgscategorizedsymbolrenderer.h.

mUuid

QString QgsRendererCategory::mUuid

protected

Definition at line 154 of file qgscategorizedsymbolrenderer.h.

mValue

QVariant QgsRendererCategory::mValue

protected

Definition at line 150 of file qgscategorizedsymbolrenderer.h.

---

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

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