18#ifndef QGSVECTORLAYER_H 
   19#define QGSVECTORLAYER_H 
   59class QgsGeometryVertexIndex;
 
  403    Q_PROPERTY( QString subsetString READ subsetString WRITE setSubsetString NOTIFY subsetStringChanged )
 
  404    Q_PROPERTY( QString displayExpression READ displayExpression WRITE setDisplayExpression NOTIFY displayExpressionChanged )
 
  405    Q_PROPERTY( 
QgsEditFormConfig editFormConfig READ editFormConfig WRITE setEditFormConfig NOTIFY editFormConfigChanged )
 
  406    Q_PROPERTY( 
bool readOnly READ isReadOnly WRITE setReadOnly NOTIFY readOnlyChanged )
 
  407    Q_PROPERTY( 
bool supportsEditing READ supportsEditing NOTIFY supportsEditingChanged )
 
  429                             bool readExtentFromXml = 
false )
 
  430        : loadDefaultStyle( loadDefaultStyle )
 
  431        , readExtentFromXml( readExtentFromXml )
 
 
  439                             bool loadDefaultStyle = 
true,
 
  440                             bool readExtentFromXml = 
false 
  442        : loadDefaultStyle( loadDefaultStyle )
 
  443        , readExtentFromXml( readExtentFromXml )
 
  444        , transformContext( transformContext )
 
 
  448      bool loadDefaultStyle = 
true;
 
  454      bool readExtentFromXml = 
false;
 
  501      bool skipCrsValidation = 
false;
 
  514      bool forceReadOnly = 
false;
 
  528      bool loadAllStoredStyles = 
false;
 
 
  549      QList<QgsVectorLayer *> handledLayers( 
bool includeAuxiliaryLayers = 
true ) 
const;
 
  556      QMap<QgsVectorLayer *, QgsFeatureIds> mHandledFeatures 
SIP_SKIP;
 
 
  574    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() );
 
  606    QString storageType() const;
 
  611    QString capabilitiesString() const;
 
  623    bool isSqlQuery() const;
 
  631    Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const;
 
  637    QString dataComment() const;
 
  646    QString displayField() const;
 
  655    void setDisplayExpression( const QString &displayExpression );
 
  663    QString displayExpression() const;
 
  665    bool hasMapTips() const 
FINAL;
 
  684    void setProviderEncoding( const QString &encoding );
 
  687    void setCoordinateSystem();
 
  700    bool removeJoin( const QString &joinLayerId );
 
  714    const QList<QgsVectorLayerJoinInfo> vectorJoins() 
const;
 
  745    int addExpressionField( const QString &exp, const 
QgsField &fld );
 
  754    void removeExpressionField( 
int index );
 
  765    QString expressionField( 
int index ) const;
 
  776    void updateExpressionField( 
int index, const QString &exp );
 
  798    int selectedFeatureCount() 
const;
 
  849    Q_INVOKABLE 
void invertSelection();
 
  852    Q_INVOKABLE 
void selectAll();
 
  861    Q_INVOKABLE 
void invertSelectionInRectangle( 
QgsRectangle &rect );
 
  913    bool labelsEnabled() 
const;
 
  924    void setLabelsEnabled( 
bool enabled );
 
  931    bool diagramsEnabled() 
const;
 
  985    void removeFeatureRendererGenerator( 
const QString &
id );
 
  994    QList< const QgsFeatureRendererGenerator * > featureRendererGenerators() 
const;
 
 1003    QString sourceName() const 
FINAL;
 
 1018    QString decodedSource( const QString &source, const QString &provider, const 
QgsReadWriteContext &context ) const 
FINAL;
 
 1039    bool loadAuxiliaryLayer( const 
QgsAuxiliaryStorage &storage, const QString &key = QString() );
 
 1066    bool readSymbology( const QDomNode &layerNode, QString &errorMessage,
 
 1068    bool readStyle( const QDomNode &node, QString &errorMessage,
 
 1070    bool writeSymbology( QDomNode &node, QDomDocument &doc, QString &errorMessage,
 
 1072    bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage,
 
 1083    bool writeSld( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props = QVariantMap() ) const;
 
 1085    bool readSld( const QDomNode &node, QString &errorMessage ) 
FINAL;
 
 1092    long long featureCount( const QString &legendKey ) const;
 
 1100    QgsFeatureIds symbolFeatureIds( const QString &legendKey ) const;
 
 1112    FeatureAvailability hasFeatures() const 
FINAL;
 
 1115    QString loadDefaultStyle( 
bool &resultFlag 
SIP_OUT ) 
FINAL;
 
 1139    virtual 
bool setSubsetString( const QString &subset );
 
 1145    virtual QString subsetString() const;
 
 1222    bool updateFeature( 
QgsFeature &feature, 
bool skipDefaultValues = false );
 
 1235    bool insertVertex( 
double x, 
double y, 
QgsFeatureId atFeatureId, 
int beforeVertex );
 
 1260    bool moveVertex( 
double x, 
double y, 
QgsFeatureId atFeatureId, 
int atVertex );
 
 1293    Q_INVOKABLE 
bool deleteSelectedFeatures( 
int *deletedCount = 
nullptr, 
QgsVectorLayer::DeleteContext *context = 
nullptr );
 
 1382#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) 
 1448    Q_INVOKABLE 
int translateFeature( 
QgsFeatureId featureId, 
double dx, 
double dy );
 
 1491    Q_INVOKABLE 
Qgis::GeometryOperationResult splitParts( const 
QgsPointSequence &splitLine, 
bool topologicalEditing = false );
 
 1513    Q_DECL_DEPRECATED 
Qgis::GeometryOperationResult splitFeatures( const QVector<
QgsPointXY> &splitLine, 
bool topologicalEditing = false ) 
SIP_DEPRECATED;
 
 1534    Q_INVOKABLE 
Qgis::GeometryOperationResult splitFeatures( const 
QgsPointSequence &splitLine, 
bool topologicalEditing = false );
 
 1558    Q_INVOKABLE 
Qgis::GeometryOperationResult splitFeatures( const 
QgsCurve *curve, 
QgsPointSequence &topologyTestPoints 
SIP_OUT, 
bool preserveCircular = false, 
bool topologicalEditing = false );
 
 1573    int addTopologicalPoints( const 
QgsGeometry &geom );
 
 1609    int addTopologicalPoints( const 
QgsPoint &p );
 
 1655    bool isSpatial() const 
FINAL;
 
 1658    bool isModified() const override;
 
 1666    bool isAuxiliaryField( 
int index, 
int &srcIndex ) const;
 
 1669    void reload() 
FINAL;
 
 1711    bool setReadOnly( 
bool readonly = true );
 
 1718    bool supportsEditing() const override;
 
 1772    bool changeAttributeValue( 
QgsFeatureId fid, 
int field, const QVariant &newValue, const QVariant &oldValue = QVariant(), 
bool skipDefaultValues = false );
 
 1820    bool addAttribute( const 
QgsField &field );
 
 1827    void setFieldAlias( 
int index, const QString &aliasString );
 
 1834    void removeFieldAlias( 
int index );
 
 1846    bool renameAttribute( 
int index, const QString &newName );
 
 1854    QString attributeAlias( 
int index ) const;
 
 1857    QString attributeDisplayName( 
int index ) const;
 
 1881    if ( a0 < 0 || a0 >= sipCpp->fields().count() )
 
 1883      PyErr_SetString( PyExc_KeyError, QByteArray::number( a0 ) );
 
 1888      sipCpp->setFieldSplitPolicy( a0, a1 );
 
 1897    Q_DECL_DEPRECATED QSet<QString> excludeAttributesWms() const 
SIP_DEPRECATED;
 
 1903    Q_DECL_DEPRECATED 
void setExcludeAttributesWms( const QSet<QString> &att ) 
SIP_DEPRECATED;
 
 1909    Q_DECL_DEPRECATED QSet<QString> excludeAttributesWfs() const 
SIP_DEPRECATED;
 
 1915    Q_DECL_DEPRECATED 
void setExcludeAttributesWfs( const QSet<QString> &att ) 
SIP_DEPRECATED;
 
 1925    virtual 
bool deleteAttribute( 
int attr );
 
 1934    bool deleteAttributes( const QList<
int> &attrs );
 
 1948    bool deleteFeature( 
QgsFeatureId fid, DeleteContext *context = 
nullptr );
 
 1963    bool deleteFeatures( const 
QgsFeatureIds &fids, DeleteContext *context = 
nullptr );
 
 1988    Q_INVOKABLE 
bool commitChanges( 
bool stopEditing = true );
 
 1995    QStringList commitErrors() const;
 
 2006    Q_INVOKABLE 
bool rollBack( 
bool deleteBuffer = true );
 
 2014    QList<
QgsRelation> referencingRelations( 
int idx ) const;
 
 2050    void beginEditCommand( 
const QString &text );
 
 2053    void endEditCommand();
 
 2056    void destroyEditCommand();
 
 2062    Q_DECL_DEPRECATED 
static void drawVertexMarker( 
double x, 
double y, QPainter &p, 
Qgis::VertexMarkerType type, 
int vertexSize );
 
 2072    void updateFields();
 
 2102    void setDefaultValueDefinition( 
int index, 
const QgsDefaultValue &definition );
 
 2123    QgsFieldConstraints::Constraints fieldConstraints( 
int fieldIndex ) 
const;
 
 2130    QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength> fieldConstraintsAndStrength( 
int fieldIndex ) 
const;
 
 2158    QString constraintExpression( 
int index ) 
const;
 
 2167    QString constraintDescription( 
int index ) 
const;
 
 2177    void setConstraintExpression( 
int index, 
const QString &expression, 
const QString &description = QString() );
 
 2184    void setFieldConfigurationFlags( 
int index, Qgis::FieldConfigurationFlags flags );
 
 2197    Qgis::FieldConfigurationFlags fieldConfigurationFlags( 
int index ) 
const;
 
 2238    QStringList uniqueStringsMatching( 
int index, const QString &substring, 
int limit = -1,
 
 2255    QVariant minimumValue( 
int index ) const 
FINAL;
 
 2271    QVariant maximumValue( 
int index ) const 
FINAL;
 
 2293    void minimumAndMaximumValue( 
int index, QVariant &minimum 
SIP_OUT, QVariant &maximum 
SIP_OUT ) const;
 
 2310                        const QString &fieldOrExpression,
 
 2319    void setFeatureBlendMode( QPainter::CompositionMode blendMode );
 
 2321    QPainter::CompositionMode featureBlendMode() const;
 
 2323    QString htmlMetadata() const 
FINAL;
 
 2393    void setReadExtentFromXml( 
bool readExtentFromXml );
 
 2402    bool readExtentFromXml() const;
 
 2409    bool isEditCommandActive()
 const { 
return mEditCommandActive; }
 
 2454    void setAllowCommit( 
bool allowCommit ) 
SIP_SKIP;
 
 2499    Q_INVOKABLE 
void deselect( 
const QgsFeatureIds &featureIds );
 
 2507    Q_INVOKABLE 
void removeSelection();
 
 2527    virtual void updateExtents( 
bool force = 
false );
 
 2543    Q_INVOKABLE 
bool startEditing();
 
 2807    void invalidateSymbolCountedFlag();
 
 2808    void onFeatureCounterCompleted();
 
 2809    void onFeatureCounterTerminated();
 
 2810    void onJoinedFieldsChanged();
 
 2812    void onRelationsLoaded();
 
 2813    void onSymbolsCounted();
 
 2814    void onDirtyTransaction( 
const QString &sql, 
const QString &name );
 
 2815    void emitDataChanged();
 
 2816    void onAfterCommitChangesDependency();
 
 2830    bool isReadOnly() const 
FINAL;
 
 2851    void setDataSourcePrivate( const QString &dataSource, const QString &baseName, const QString &provider, const 
QgsDataProvider::ProviderOptions &options, 
QgsDataProvider::ReadFlags flags ) override;
 
 2854    void readSldLabeling( const QDomNode &node );
 
 2868    void minimumOrMaximumValue( 
int index, QVariant *minimum, QVariant *maximum ) 
const;
 
 2870    void createEditBuffer();
 
 2871    void clearEditBuffer();
 
 2880    QString mDisplayExpression;
 
 2886    bool mDataSourceReadOnly = 
false;
 
 2894    bool mReadOnly = 
false;
 
 2915    QMap<QString, QgsDefaultValue> mDefaultExpressionMap;
 
 2918    QMap< QString, Qgis::FieldDomainSplitPolicy > mAttributeSplitPolicy;
 
 2921    QSet<int> mDefaultValueOnUpdateFields;
 
 2924    QMap< QString, QgsFieldConstraints::Constraints > mFieldConstraints;
 
 2930    QMap< QString, QPair< QString, QString > > mFieldConstraintExpressions;
 
 2932    QMap< QString, Qgis::FieldConfigurationFlags > mFieldConfigurationFlags;
 
 2933    QMap< QString, QgsEditorWidgetSetup > mFieldWidgetSetups;
 
 2951    bool mLabelsEnabled = 
false;
 
 2954    bool mLabelFontNotFoundNotified = 
false;
 
 2957    QPainter::CompositionMode mFeatureBlendMode = QPainter::CompositionMode_SourceOver;
 
 2960    bool mVertexMarkerOnlyForSelection = 
false;
 
 2962    QStringList mCommitErrors;
 
 2982    mutable bool mValidExtent = 
false;
 
 2983    mutable bool mLazyExtent = 
true;
 
 2986    std::unique_ptr<QgsAuxiliaryLayer> mAuxiliaryLayer;
 
 2989    QString mAuxiliaryLayerKey;
 
 2992    bool mSymbolFeatureCounted = 
false;
 
 2995    QHash<QString, long long> mSymbolFeatureCountMap;
 
 2996    QHash<QString, QgsFeatureIds> mSymbolFeatureIdMap;
 
 2999    bool mEditCommandActive = 
false;
 
 3002    bool mCommitChangesActive = 
false;
 
 3004    bool mReadExtentFromXml;
 
 3011    mutable QMutex mFeatureSourceConstructorMutex;
 
 3015    std::unique_ptr<QgsGeometryOptions> mGeometryOptions;
 
 3017    bool mAllowCommit = 
true;
 
 3025    bool mDataChangedFired = 
false;
 
 3027    QList<QgsWeakRelation> mWeakRelations;
 
 3029    bool mSetLegendFromStyle = 
false;
 
 3031    QList< QgsFeatureRendererGenerator * > mRendererGenerators;
 
 3034    QTimer *mRefreshRendererTimer = 
nullptr;
 
 3039    bool mLoadAllStoredStyle = 
false;
 
 
The Qgis class provides global constants for use throughout the application.
 
GeometryOperationResult
Success or failure of a geometry operation.
 
FieldDomainSplitPolicy
Split policy for field domains.
 
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
 
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...
 
SelectBehavior
Specifies how a selection should be applied.
 
@ SetSelection
Set selection, removing any existing selection.
 
Abstract base class for simplify 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 ...
 
This is a container for configuration of the attribute table.
 
Class allowing to manage the auxiliary storage for a vector layer.
 
Class providing some utility methods to manage auxiliary storage.
 
The QgsConditionalLayerStyles class holds conditional style information for a layer.
 
This class 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.
 
The QgsDefaultValue class 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)
 
An interface for objects which generate feature renderers for vector layers.
 
This class 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.
 
SpatialIndexPresence
Enumeration of spatial index presence states.
 
virtual Qgis::WkbType wkbType() const =0
Returns the geometry type for features returned by this 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.
 
virtual SpatialIndexPresence hasSpatialIndex() const
Returns an enum value representing the presence of a valid spatial index on the source,...
 
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.
 
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.
 
The QgsGeometryOptions class contains options to automatically adjust geometries to constraints on a ...
 
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 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.
 
A class to represent a 2D point.
 
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,...
 
The class is used as a container of context for various read/write operations on other objects.
 
A rectangle specified with double values.
 
This class manages a set of relations between layers.
 
Contains information about the context of a rendering operation.
 
A boolean settings entry.
 
A template class for enum and flag settings entry.
 
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.
 
This is the base class for vector data providers.
 
The edit buffer group manages a group of edit buffers.
 
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.
 
Represents a vector layer which manages a vector based data sets.
 
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 allowCommitChanged() 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
QgsVectorLayer cannot be copied.
 
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
QgsVectorLayer cannot be copied.
 
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.
 
QgsFeature getFeature(QgsFeatureId fid) const
Queries the layer for the feature with the given id.
 
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.
 
const QgsDiagramRenderer * diagramRenderer() const
 
This class contains information how to simplify geometries fetched from a vector layer.
 
SimplifyHint
Simplification flags for fast rendering of features.
 
The QgsWeakRelation class 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.