17#ifndef QGSMESHLAYERLABELING_H
18#define QGSMESHLAYERLABELING_H
52 virtual QString
type()
const = 0;
67 virtual QStringList
subProviders()
const {
return QStringList( QString() ); }
96 virtual void multiplyOpacity(
double opacityFactor ) { Q_UNUSED( opacityFactor ); };
107 virtual void toSld( QDomNode &parent,
const QVariantMap &props )
const
111 QDomDocument doc = parent.ownerDocument();
112 parent.appendChild( doc.createComment( QStringLiteral(
"SE Export for %1 not implemented yet" ).arg( type() ) ) );
154 QString type()
const override;
170 bool requiresAdvancedEffects()
const override;
171 void multiplyOpacity(
double opacityFactor )
override;
176 std::unique_ptr<QgsPalLayerSettings> mSettings;
177 bool mLabelFaces =
false;
Abstract base class - its implementations define different approaches to the labeling of a mesh layer...
QgsAbstractMeshLayerLabeling()=default
virtual QgsMeshLayerLabelProvider * provider(QgsMeshLayer *layer) const
Factory for label provider implementation.
virtual QStringList subProviders() const
Gets list of sub-providers within the layer's labeling.
virtual void toSld(QDomNode &parent, const QVariantMap &props) const
Writes the SE 1.1 TextSymbolizer element based on the current layer labeling settings.
virtual QDomElement save(QDomDocument &doc, const QgsReadWriteContext &context) const =0
Returns labeling configuration as XML element.
virtual void multiplyOpacity(double opacityFactor)
Multiply opacity by opacityFactor.
virtual QgsAbstractMeshLayerLabeling * clone() const =0
Returns a new copy of the object.
virtual QString type() const =0
Unique type string of the labeling configuration implementation.
virtual bool requiresAdvancedEffects() const =0
Returns true if drawing labels requires advanced effects like composition modes, which could prevent ...
virtual void setSettings(QgsPalLayerSettings *settings, const QString &providerId=QString())=0
Set pal settings for a specific provider (takes ownership).
virtual QgsPalLayerSettings settings(const QString &providerId=QString()) const =0
Gets associated label settings.
virtual ~QgsAbstractMeshLayerLabeling()=default
The QgsMeshLayerLabelProvider class implements a label provider for mesh layers.
Basic implementation of the labeling interface for mesh layer.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
Contains settings for how a map layer will be labeled.
The class is used as a container of context for various read/write operations on other objects.
An interface for classes which can visit style entity (e.g.