18#ifndef QGSVECTORLAYER_H
19#define QGSVECTORLAYER_H
60class QgsGeometryVertexIndex;
405 Q_PROPERTY( QString subsetString READ subsetString WRITE setSubsetString NOTIFY subsetStringChanged )
406 Q_PROPERTY( QString displayExpression READ displayExpression WRITE setDisplayExpression NOTIFY displayExpressionChanged )
407 Q_PROPERTY(
QgsEditFormConfig editFormConfig READ editFormConfig WRITE setEditFormConfig NOTIFY editFormConfigChanged )
408 Q_PROPERTY(
bool readOnly READ isReadOnly WRITE setReadOnly NOTIFY readOnlyChanged )
409 Q_PROPERTY(
bool supportsEditing READ supportsEditing NOTIFY supportsEditingChanged )
410 Q_PROPERTY(
QgsFields fields READ fields NOTIFY updatedFields )
431 bool readExtentFromXml =
false )
432 : loadDefaultStyle( loadDefaultStyle )
433 , readExtentFromXml( readExtentFromXml )
441 bool loadDefaultStyle =
true,
442 bool readExtentFromXml =
false
444 : loadDefaultStyle( loadDefaultStyle )
445 , readExtentFromXml( readExtentFromXml )
446 , transformContext( transformContext )
450 bool loadDefaultStyle =
true;
456 bool readExtentFromXml =
false;
503 bool skipCrsValidation =
false;
516 bool forceReadOnly =
false;
530 bool loadAllStoredStyles =
false;
551 QList<QgsVectorLayer *> handledLayers(
bool includeAuxiliaryLayers =
true )
const;
558 QMap<QgsVectorLayer *, QgsFeatureIds> mHandledFeatures
SIP_SKIP;
576 explicit QgsVectorLayer(
const QString &path = QString(),
const QString &baseName = QString(),
585 SIP_PYOBJECT __repr__();
587 QString str = QStringLiteral(
"<QgsVectorLayer: '%1' (%2)>" ).arg( sipCpp->name(), sipCpp->dataProvider() ? sipCpp->dataProvider()->name() : QStringLiteral(
"Invalid" ) );
588 sipRes = PyUnicode_FromString( str.toUtf8().constData() );
605 QString storageType() const;
610 QString capabilitiesString() const;
622 bool isSqlQuery() const;
630 Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const;
636 QString dataComment() const;
645 QString displayField() const;
654 void setDisplayExpression( const QString &displayExpression );
662 QString displayExpression() const;
664 bool hasMapTips() const
FINAL;
683 void setProviderEncoding( const QString &encoding );
686 void setCoordinateSystem();
699 bool removeJoin( const QString &joinLayerId );
712 const QList<QgsVectorLayerJoinInfo> vectorJoins()
const;
740 int addExpressionField( const QString &exp, const
QgsField &fld );
748 void removeExpressionField(
int index );
758 QString expressionField(
int index ) const;
768 void updateExpressionField(
int index, const QString &exp );
790 int selectedFeatureCount()
const;
839 Q_INVOKABLE
void invertSelection();
842 Q_INVOKABLE
void selectAll();
851 Q_INVOKABLE
void invertSelectionInRectangle(
QgsRectangle &rect );
902 bool labelsEnabled()
const;
913 void setLabelsEnabled(
bool enabled );
919 bool diagramsEnabled()
const;
973 void removeFeatureRendererGenerator(
const QString &
id );
982 QList< const QgsFeatureRendererGenerator * > featureRendererGenerators()
const;
991 QString sourceName() const
FINAL;
1006 QString decodedSource( const QString &source, const QString &provider, const
QgsReadWriteContext &context ) const
FINAL;
1025 bool loadAuxiliaryLayer( const
QgsAuxiliaryStorage &storage, const QString &key = QString() );
1049 bool readSymbology( const QDomNode &layerNode, QString &errorMessage,
1051 bool readStyle( const QDomNode &node, QString &errorMessage,
1053 bool writeSymbology( QDomNode &node, QDomDocument &doc, QString &errorMessage,
1055 bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage,
1066 bool writeSld( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props = QVariantMap() ) const;
1068 bool readSld( const QDomNode &node, QString &errorMessage )
FINAL;
1075 long long featureCount( const QString &legendKey ) const;
1083 QgsFeatureIds symbolFeatureIds( const QString &legendKey ) const;
1095 Qgis::FeatureAvailability hasFeatures() const
FINAL;
1097 QString loadDefaultStyle(
bool &resultFlag
SIP_OUT )
FINAL;
1120 virtual
bool setSubsetString( const QString &subset );
1126 virtual QString subsetString() const;
1203 bool updateFeature(
QgsFeature &feature,
bool skipDefaultValues = false );
1216 bool insertVertex(
double x,
double y,
QgsFeatureId atFeatureId,
int beforeVertex );
1241 bool moveVertex(
double x,
double y,
QgsFeatureId atFeatureId,
int atVertex );
1273 Q_INVOKABLE
bool deleteSelectedFeatures(
int *deletedCount =
nullptr,
QgsVectorLayer::DeleteContext *context =
nullptr );
1362#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
1431 Q_INVOKABLE
int translateFeature(
QgsFeatureId featureId,
double dx,
double dy );
1474 Q_INVOKABLE
Qgis::GeometryOperationResult splitParts( const
QgsPointSequence &splitLine,
bool topologicalEditing = false );
1496 Q_DECL_DEPRECATED
Qgis::GeometryOperationResult splitFeatures( const QVector<
QgsPointXY> &splitLine,
bool topologicalEditing = false )
SIP_DEPRECATED;
1517 Q_INVOKABLE
Qgis::GeometryOperationResult splitFeatures( const
QgsPointSequence &splitLine,
bool topologicalEditing = false );
1541 Q_INVOKABLE
Qgis::GeometryOperationResult splitFeatures( const
QgsCurve *curve,
QgsPointSequence &topologyTestPoints
SIP_OUT,
bool preserveCircular = false,
bool topologicalEditing = false );
1556 int addTopologicalPoints( const
QgsGeometry &geom );
1592 int addTopologicalPoints( const
QgsPoint &p );
1635 bool isSpatial() const
FINAL;
1638 bool isModified() const override;
1645 bool isAuxiliaryField(
int index,
int &srcIndex ) const;
1648 void reload()
FINAL;
1692 bool setReadOnly(
bool readonly = true );
1699 bool supportsEditing() const override;
1755 Q_INVOKABLE
bool changeAttributeValue(
QgsFeatureId fid,
int field, const QVariant &newValue, const QVariant &oldValue = QVariant(),
bool skipDefaultValues = false,
QgsVectorLayerToolsContext *context =
nullptr );
1804 bool addAttribute( const
QgsField &field );
1810 void setFieldAlias(
int index, const QString &aliasString );
1816 void removeFieldAlias(
int index );
1827 bool renameAttribute(
int index, const QString &newName );
1835 QString attributeAlias(
int index ) const;
1838 QString attributeDisplayName(
int index ) const;
1876 if ( a0 < 0 || a0 >= sipCpp->fields().count() )
1878 PyErr_SetString( PyExc_KeyError, QByteArray::number( a0 ) );
1883 sipCpp->setFieldSplitPolicy( a0, a1 );
1896 if ( a0 < 0 || a0 >= sipCpp->fields().count() )
1898 PyErr_SetString( PyExc_KeyError, QByteArray::number( a0 ) );
1903 sipCpp->setFieldDuplicatePolicy( a0, a1 );
1916 if ( a0 < 0 || a0 >= sipCpp->fields().count() )
1918 PyErr_SetString( PyExc_KeyError, QByteArray::number( a0 ) );
1923 sipCpp->setFieldMergePolicy( a0, a1 );
1932 Q_DECL_DEPRECATED QSet<QString> excludeAttributesWms() const
SIP_DEPRECATED;
1938 Q_DECL_DEPRECATED
void setExcludeAttributesWms( const QSet<QString> &att )
SIP_DEPRECATED;
1944 Q_DECL_DEPRECATED QSet<QString> excludeAttributesWfs() const
SIP_DEPRECATED;
1950 Q_DECL_DEPRECATED
void setExcludeAttributesWfs( const QSet<QString> &att )
SIP_DEPRECATED;
1960 virtual
bool deleteAttribute(
int attr );
1969 bool deleteAttributes( const QList<
int> &attrs );
2023 Q_INVOKABLE
bool commitChanges(
bool stopEditing = true );
2030 QStringList commitErrors() const;
2041 Q_INVOKABLE
bool rollBack(
bool deleteBuffer = true );
2049 QList<
QgsRelation> referencingRelations(
int idx ) const;
2085 void beginEditCommand(
const QString &text );
2088 void endEditCommand();
2091 void destroyEditCommand();
2097 Q_DECL_DEPRECATED
static void drawVertexMarker(
double x,
double y, QPainter &p,
Qgis::VertexMarkerType type,
int vertexSize );
2107 void updateFields();
2135 void setDefaultValueDefinition(
int index,
const QgsDefaultValue &definition );
2160 QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength> fieldConstraintsAndStrength(
int fieldIndex )
const;
2185 QString constraintExpression(
int index )
const;
2193 QString constraintDescription(
int index )
const;
2202 void setConstraintExpression(
int index,
const QString &expression,
const QString &description = QString() );
2270 QStringList uniqueStringsMatching(
int index, const QString &substring,
int limit = -1,
2287 QVariant minimumValue(
int index ) const
FINAL;
2303 QVariant maximumValue(
int index ) const
FINAL;
2325 void minimumAndMaximumValue(
int index, QVariant &minimum
SIP_OUT, QVariant &maximum
SIP_OUT ) const;
2340 QVariant aggregate(
Qgis::Aggregate aggregate,
2341 const QString &fieldOrExpression,
2350 void setFeatureBlendMode( QPainter::CompositionMode blendMode );
2352 QPainter::CompositionMode featureBlendMode() const;
2354 QString htmlMetadata() const
FINAL;
2417 void setReadExtentFromXml(
bool readExtentFromXml );
2425 bool readExtentFromXml() const;
2431 bool isEditCommandActive()
const {
return mEditCommandActive; }
2476 void setAllowCommit(
bool allowCommit )
SIP_SKIP;
2521 Q_INVOKABLE
void deselect(
const QgsFeatureIds &featureIds );
2529 Q_INVOKABLE
void removeSelection();
2549 virtual void updateExtents(
bool force =
false );
2565 Q_INVOKABLE
bool startEditing();
2827 void invalidateSymbolCountedFlag();
2828 void onFeatureCounterCompleted();
2829 void onFeatureCounterTerminated();
2830 void onJoinedFieldsChanged();
2833 void onRelationsLoaded();
2834 void onSymbolsCounted();
2835 void onDirtyTransaction(
const QString &sql,
const QString &name );
2836 void emitDataChanged();
2850 bool isReadOnly() const
FINAL;
2858 bool setDataProvider( QString const &provider, const
QgsDataProvider::ProviderOptions &options,
Qgis::DataProviderReadFlags flags =
Qgis::DataProviderReadFlags() );
2871 void setDataSourcePrivate( const QString &dataSource, const QString &baseName, const QString &provider, const
QgsDataProvider::ProviderOptions &options,
Qgis::DataProviderReadFlags flags ) override;
2874 void readSldLabeling( const QDomNode &node );
2888 void minimumOrMaximumValue(
int index, QVariant *minimum, QVariant *maximum )
const;
2890 void createEditBuffer();
2891 void clearEditBuffer();
2900 QString mDisplayExpression;
2906 bool mDataSourceReadOnly =
false;
2914 bool mReadOnly =
false;
2935 QMap<QString, QgsDefaultValue> mDefaultExpressionMap;
2938 QMap< QString, Qgis::FieldDomainSplitPolicy > mAttributeSplitPolicy;
2941 QMap< QString, Qgis::FieldDuplicatePolicy > mAttributeDuplicatePolicy;
2944 QMap< QString, Qgis::FieldDomainMergePolicy > mAttributeMergePolicy;
2947 QSet<int> mDefaultValueOnUpdateFields;
2950 QMap< QString, QgsFieldConstraints::Constraints > mFieldConstraints;
2956 QMap< QString, QPair< QString, QString > > mFieldConstraintExpressions;
2958 QMap< QString, Qgis::FieldConfigurationFlags > mFieldConfigurationFlags;
2959 QMap< QString, QgsEditorWidgetSetup > mFieldWidgetSetups;
2977 bool mLabelsEnabled =
false;
2980 bool mLabelFontNotFoundNotified =
false;
2983 QPainter::CompositionMode mFeatureBlendMode = QPainter::CompositionMode_SourceOver;
2986 bool mVertexMarkerOnlyForSelection =
false;
2988 QStringList mCommitErrors;
3008 mutable bool mValidExtent2D =
false;
3009 mutable bool mLazyExtent2D =
true;
3010 mutable bool mValidExtent3D =
false;
3011 mutable bool mLazyExtent3D =
true;
3014 std::unique_ptr<QgsAuxiliaryLayer> mAuxiliaryLayer;
3017 QString mAuxiliaryLayerKey;
3020 bool mSymbolFeatureCounted =
false;
3023 QHash<QString, long long> mSymbolFeatureCountMap;
3024 QHash<QString, QgsFeatureIds> mSymbolFeatureIdMap;
3027 bool mEditCommandActive =
false;
3030 bool mCommitChangesActive =
false;
3032 bool mReadExtentFromXml;
3040 mutable QMutex mFeatureSourceConstructorMutex;
3044 std::unique_ptr<QgsGeometryOptions> mGeometryOptions;
3046 bool mAllowCommit =
true;
3054 bool mDataChangedFired =
false;
3056 QList<QgsWeakRelation> mWeakRelations;
3058 bool mSetLegendFromStyle =
false;
3060 QList< QgsFeatureRendererGenerator * > mRendererGenerators;
3063 QTimer *mRefreshRendererTimer =
nullptr;
3068 bool mLoadAllStoredStyle =
false;
Provides global constants and enumerations for use throughout the application.
GeometryOperationResult
Success or failure of a geometry operation.
SpatialIndexPresence
Enumeration of spatial index presence states.
VectorRenderingSimplificationFlag
Simplification flags for vector feature rendering.
FieldDomainMergePolicy
Merge policy for field domains.
FieldDomainSplitPolicy
Split policy for field domains.
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
FieldDuplicatePolicy
Duplicate policy for fields.
VertexMarkerType
Editing vertex markers, used for showing vertices during a edit operation.
WkbType
The WKB type describes the number of dimensions a geometry has.
FieldConfigurationFlag
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
QFlags< FieldConfigurationFlag > FieldConfigurationFlags
Configuration flags for fields These flags are meant to be user-configurable and are not describing a...
SelectBehavior
Specifies how a selection should be applied.
@ SetSelection
Set selection, removing any existing selection.
Abstract base class for simplifying geometries using a specific algorithm.
Abstract base class for objects which generate elevation profiles.
Interface for classes which can generate elevation profiles.
Abstract base class - its implementations define different approaches to the labeling of a vector lay...
Storage and management of actions associated with a layer.
Utility class for calculating aggregates for a field (or expression) over the features from a vector ...
A container for configuration of the attribute table.
Allows managing the auxiliary storage for a vector layer.
Providing some utility methods to manage auxiliary storage.
A 3-dimensional box composed of x, y, z coordinates.
Holds conditional style information for a layer.
Represents a coordinate reference system (CRS).
Contains information about the context in which a coordinate transform is executed.
Abstract base class for curved geometry type.
Abstract base class for spatial data provider implementations.
Provides a container for managing client side default values for fields.
Stores the settings for rendering of all diagrams for a layer.
Evaluates and returns the diagram settings relating to a diagram for a specific feature.
Abstract interface for generating an expression context.
virtual QgsExpressionContext createExpressionContext() const =0
This method needs to be reimplemented in all classes which implement this interface and return an exp...
Abstract interface for generating an expression context scope.
Single scope for storing variables and functions for use within a QgsExpressionContext.
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Buffers information about expression fields for a vector layer.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
An interface for objects which generate feature renderers for vector layers.
Abstract base class for all 2D vector feature renderers.
Wraps a request for features to a vector layer (or directly its vector data provider).
An interface for objects which accept features via addFeature(s) methods.
virtual bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
Adds a single feature to the sink.
An interface for objects which provide features via a getFeatures method.
virtual QSet< QVariant > uniqueValues(int fieldIndex, int limit=-1) const
Returns the set of unique values contained within the specified fieldIndex from this source.
virtual Qgis::WkbType wkbType() const =0
Returns the geometry type for features returned by this source.
virtual Qgis::SpatialIndexPresence hasSpatialIndex() const
Returns an enum value representing the presence of a valid spatial index on the source,...
virtual QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const =0
Returns an iterator for the features in the source.
virtual long long featureCount() const =0
Returns the number of features contained in the source, or -1 if the feature count is unknown.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Base class for feedback objects to be used for cancellation of something running in a worker thread.
ConstraintStrength
Strength of constraints.
@ ConstraintStrengthHard
Constraint must be honored before feature can be accepted.
Constraint
Constraints which may be present on a field.
QFlags< Constraint > Constraints
Encapsulate a field in an attribute table or data source.
Container of fields for a vector layer.
QgsAttributeList allAttributesList() const
Utility function to get list of attribute indexes.
Contains options to automatically adjust geometries to constraints on a layer.
A geometry is the spatial representation of a feature.
Base class for storage of map layer elevation properties.
Base class for utility classes that encapsulate information necessary for rendering of map layers.
Base class for storage of map layer selection properties.
Base class for storage of map layer temporal properties.
Base class for all map layer types.
virtual bool accept(QgsStyleEntityVisitorInterface *visitor) const
Accepts the specified symbology visitor, causing it to visit all symbols associated with the layer.
virtual bool setDependencies(const QSet< QgsMapLayerDependency > &layers)
Sets the list of dependencies.
virtual void setExtent3D(const QgsBox3D &box)
Sets the extent.
virtual QSet< QgsMapLayerDependency > dependencies() const
Gets the list of dependencies.
friend class QgsVectorLayer
virtual bool isEditable() const
Returns true if the layer can be edited.
virtual QgsMapLayer * clone() const =0
Returns a new instance equivalent to this one except for the id which is still unique.
virtual void setExtent(const QgsRectangle &rect)
Sets the extent.
virtual void setTransformContext(const QgsCoordinateTransformContext &transformContext)=0
Sets the coordinate transform context to transformContext.
Perform transforms between map coordinates and device coordinates.
Contains settings for how a map layer will be labeled.
Point geometry type, with support for z-dimension and m-values.
Encapsulates properties and constraints relating to fetching elevation profiles from different source...
Encapsulates a QGIS project, including sets of map layers and their styles, layouts,...
A container for the context for various read/write operations on objects.
A rectangle specified with double values.
Manages a set of relations between layers.
Represents a relationship between two vector layers.
Contains information about the context of a rendering operation.
A boolean settings entry.
A template class for enum and flag settings entry.
A feature renderer which renders all features with the same symbol.
Manages stored expressions regarding creation, modification and storing in the project.
An interface for classes which can visit style entity (e.g.
Abstract base class for all rendered symbols.
Base class for vector data providers.
The edit buffer group manages a group of edit buffers.
Stores queued vector layer edit operations prior to committing changes to the layer's data provider.
An edit buffer which directly passes commands through, used when a layer is within a transaction.
Vector layer specific subclass of QgsMapLayerElevationProperties.
Counts the features in a QgsVectorLayer in task.
Partial snapshot of vector layer's state (only the members necessary for access to features).
Manages joined fields for a vector layer.
Defines left outer join from our vector layer to some other vector layer.
Implementation of layer selection properties for vector layers.
Implementation of map layer temporal properties for vector layers.
Contains settings which reflect the context in which vector layer tool operations should be considere...
Represents a vector layer which manages a vector based dataset.
void committedFeaturesAdded(const QString &layerId, const QgsFeatureList &addedFeatures)
Emitted when features are added to the provider if not in transaction mode.
void labelingFontNotFound(QgsVectorLayer *layer, const QString &fontfamily)
Emitted when the font family defined for labeling layer is not found on system.
void featureBlendModeChanged(QPainter::CompositionMode blendMode)
Signal emitted when setFeatureBlendMode() is called.
void beforeRemovingExpressionField(int idx)
Will be emitted, when an expression field is going to be deleted from this vector layer.
void committedGeometriesChanges(const QString &layerId, const QgsGeometryMap &changedGeometries)
Emitted when geometry changes are saved to the provider if not in transaction mode.
void beforeCommitChanges(bool stopEditing)
Emitted before changes are committed to the data provider.
void attributeAdded(int idx)
Will be emitted, when a new attribute has been added to this vector layer.
QgsAbstractVectorLayerLabeling * labeling()
Access to labeling configuration.
void allowCommitChanged()
Emitted whenever the allowCommit() property of this layer changes.
void editCommandStarted(const QString &text)
Signal emitted when a new edit command has been started.
const QgsDiagramLayerSettings * diagramLayerSettings() const
const QgsVectorLayerJoinBuffer * joinBuffer() const
Returns a const pointer on join buffer object.
void editCommandDestroyed()
Signal emitted, when an edit command is destroyed.
QgsVectorLayer(const QgsVectorLayer &rhs)=delete
void featuresDeleted(const QgsFeatureIds &fids)
Emitted when features have been deleted.
void subsetStringChanged()
Emitted when the layer's subset string has changed.
void committedFeaturesRemoved(const QString &layerId, const QgsFeatureIds &deletedFeatureIds)
Emitted when features are deleted from the provider if not in transaction mode.
void symbolFeatureCountMapChanged()
Emitted when the feature count for symbols on this layer has been recalculated.
void writeCustomSymbology(QDomElement &element, QDomDocument &doc, QString &errorMessage) const
Signal emitted whenever the symbology (QML-file) for this layer is being written.
void attributeDeleted(int idx)
Will be emitted, when an attribute has been deleted from this vector layer.
QgsVectorLayer & operator=(QgsVectorLayer const &rhs)=delete
QgsFeatureRenderer * renderer()
Returns the feature renderer used for rendering the features in the layer in 2D map views.
void beforeEditingStarted()
Emitted before editing on this layer is started.
void committedAttributeValuesChanges(const QString &layerId, const QgsChangedAttributesMap &changedAttributesValues)
Emitted when attribute value changes are saved to the provider if not in transaction mode.
void committedAttributesAdded(const QString &layerId, const QList< QgsField > &addedAttributes)
Emitted when attributes are added to the provider if not in transaction mode.
void committedAttributesDeleted(const QString &layerId, const QgsAttributeList &deletedAttributes)
Emitted when attributes are deleted from the provider if not in transaction mode.
void displayExpressionChanged()
Emitted when the display expression changes.
const QgsActionManager * actions() const
Returns all layer actions defined on this layer.
void editFormConfigChanged()
Will be emitted whenever the edit form configuration of this layer changes.
void afterCommitChanges()
Emitted after changes are committed to the data provider.
void raiseError(const QString &msg)
Signals an error related to this vector layer.
void editCommandEnded()
Signal emitted, when an edit command successfully ended.
void supportsEditingChanged()
Emitted when the read only state or the data provider of this layer is changed.
void readOnlyChanged()
Emitted when the read only state of this layer is changed.
void attributeValueChanged(QgsFeatureId fid, int idx, const QVariant &value)
Emitted whenever an attribute value change is done in the edit buffer.
QgsFeatureIterator getFeatures(const QgsFeatureIds &fids)
Queries the layer for the features with the given ids.
void afterRollBack()
Emitted after changes are rolled back.
const QgsVectorSimplifyMethod & simplifyMethod() const
Returns the simplification settings for fast rendering of features.
void selectionChanged(const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect)
Emitted when selection was changed.
void beforeAddingExpressionField(const QString &fieldName)
Will be emitted, when an expression field is going to be added to this vector layer.
void updatedFields()
Emitted whenever the fields available from this layer have been changed.
void featureAdded(QgsFeatureId fid)
Emitted when a new feature has been added to the layer.
void featureDeleted(QgsFeatureId fid)
Emitted when a feature has been deleted.
void readCustomSymbology(const QDomElement &element, QString &errorMessage)
Signal emitted whenever the symbology (QML-file) for this layer is being read.
const QgsVectorLayerEditBuffer * editBuffer() const
Buffer with uncommitted editing operations.
void beforeRollBack()
Emitted before changes are rolled back.
void geometryChanged(QgsFeatureId fid, const QgsGeometry &geometry)
Emitted whenever a geometry change is done in the edit buffer.
QgsFeatureIterator getFeatures(const QgsRectangle &rectangle)
Queries the layer for the features which intersect the specified rectangle.
const QgsFeatureRenderer * renderer() const
Returns the feature renderer used for rendering the features in the layer in 2D map views.
void beforeModifiedCheck() const
Emitted when the layer is checked for modifications. Use for last-minute additions.
Q_INVOKABLE QgsFeature getFeature(QgsFeatureId fid) const
Queries the layer for the feature with the given id.
const QgsDiagramRenderer * diagramRenderer() const
Contains settings for simplifying geometries fetched from a vector layer.
Represent a QgsRelation with possibly unresolved layers or unmatched fields.
QMap< QString, QString > QgsStringMap
QVector< QgsPoint > QgsPointSequence
QMap< int, QVariant > QgsAttributeMap
QMap< QgsFeatureId, QgsGeometry > QgsGeometryMap
QMap< QgsFeatureId, QgsAttributeMap > QgsChangedAttributesMap
QList< QgsFeature > QgsFeatureList
QSet< QgsFeatureId > QgsFeatureIds
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features
QList< int > QgsAttributeList
QList< int > QgsAttributeList
QSet< int > QgsAttributeIds
Context for cascade delete features.
DeleteContext(bool cascade=false, QgsProject *project=nullptr)
Constructor for DeleteContext.
Setting options for loading vector layers.
LayerOptions(bool loadDefaultStyle=true, bool readExtentFromXml=false)
Constructor for LayerOptions.
LayerOptions(const QgsCoordinateTransformContext &transformContext, bool loadDefaultStyle=true, bool readExtentFromXml=false)
Constructor for LayerOptions.
QgsCoordinateReferenceSystem fallbackCrs
Fallback layer coordinate reference system.