QgsMapLayerStyle class

Stores style information (renderer, opacity, labeling, diagrams etc.) applicable to a map layer.

Stored data are considered as opaque - it is not possible to access them directly or modify them - it is only possible to read or write layer's current style.

Constructors, destructors, conversion operators

QgsMapLayerStyle() defaulted

construct invalid style

QgsMapLayerStyle(const QString& xmlData) explicit

construct style from QML definition (XML)

Public functions

void clear()

Remove any stored style data (will get invalid)

auto isValid() const -> bool

Tell whether the style is valid (i.e. there is something stored in it)

void readFromLayer(QgsMapLayer* layer)

Store layer's active style information in the instance.

void readXml(const QDomElement& styleElement)

Read style configuration (for project file reading)

void writeToLayer(QgsMapLayer* layer) const

Apply stored layer's style information to the layer.

void writeXml(QDomElement& styleElement) const

Write style configuration (for project file writing)

auto xmlData() const -> QString

Returns XML content of the style.