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 )
428 bool readExtentFromXml =
false )
429 : loadDefaultStyle( loadDefaultStyle )
430 , readExtentFromXml( readExtentFromXml )
438 bool loadDefaultStyle =
true,
439 bool readExtentFromXml =
false
441 : loadDefaultStyle( loadDefaultStyle )
442 , readExtentFromXml( readExtentFromXml )
443 , transformContext( transformContext )
447 bool loadDefaultStyle =
true;
453 bool readExtentFromXml =
false;
500 bool skipCrsValidation =
false;
513 bool forceReadOnly =
false;
527 bool loadAllStoredStyles =
false;
548 QList<QgsVectorLayer *> handledLayers(
bool includeAuxiliaryLayers =
true )
const;
555 QMap<QgsVectorLayer *, QgsFeatureIds> mHandledFeatures
SIP_SKIP;
573 explicit QgsVectorLayer(
const QString &path = QString(),
const QString &baseName = QString(),
584 SIP_PYOBJECT __repr__();
586 QString
str = QStringLiteral(
"<QgsVectorLayer: '%1' (%2)>" ).arg( sipCpp->name(), sipCpp->dataProvider() ? sipCpp->dataProvider()->name() : QStringLiteral(
"Invalid" ) );
587 sipRes = PyUnicode_FromString(
str.toUtf8().constData() );
604 QString storageType() const;
609 QString capabilitiesString() const;
621 bool isSqlQuery() const;
629 Qgis::VectorLayerTypeFlags vectorLayerTypeFlags() const;
635 QString dataComment() const;
644 QString displayField() const;
653 void setDisplayExpression( const QString &displayExpression );
661 QString displayExpression() const;
663 bool hasMapTips() const
FINAL;
682 void setProviderEncoding( const QString &encoding );
685 void setCoordinateSystem();
698 bool removeJoin( const QString &joinLayerId );
711 const QList<QgsVectorLayerJoinInfo> vectorJoins()
const;
739 int addExpressionField( const QString &exp, const
QgsField &fld );
747 void removeExpressionField(
int index );
757 QString expressionField(
int index ) const;
767 void updateExpressionField(
int index, const QString &exp );
789 int selectedFeatureCount()
const;
838 Q_INVOKABLE
void invertSelection();
841 Q_INVOKABLE
void selectAll();
850 Q_INVOKABLE
void invertSelectionInRectangle(
QgsRectangle &rect );
901 bool labelsEnabled()
const;
912 void setLabelsEnabled(
bool enabled );
918 bool diagramsEnabled()
const;
972 void removeFeatureRendererGenerator(
const QString &
id );
981 QList< const QgsFeatureRendererGenerator * > featureRendererGenerators()
const;
990 QString sourceName() const
FINAL;
1005 QString decodedSource( const QString &source, const QString &provider, const
QgsReadWriteContext &context ) const
FINAL;
1024 bool loadAuxiliaryLayer( const
QgsAuxiliaryStorage &storage, const QString &key = QString() );
1048 bool readSymbology( const QDomNode &layerNode, QString &errorMessage,
1050 bool readStyle( const QDomNode &node, QString &errorMessage,
1052 bool writeSymbology( QDomNode &node, QDomDocument &doc, QString &errorMessage,
1054 bool writeStyle( QDomNode &node, QDomDocument &doc, QString &errorMessage,
1065 bool writeSld( QDomNode &node, QDomDocument &doc, QString &errorMessage, const QVariantMap &props = QVariantMap() ) const;
1067 bool readSld( const QDomNode &node, QString &errorMessage )
FINAL;
1074 long long featureCount( const QString &legendKey ) const;
1082 QgsFeatureIds symbolFeatureIds( const QString &legendKey ) const;
1094 Qgis::FeatureAvailability hasFeatures() const
FINAL;
1096 QString loadDefaultStyle(
bool &resultFlag
SIP_OUT )
FINAL;
1119 virtual
bool setSubsetString( const QString &subset );
1125 virtual QString subsetString() const;
1202 bool updateFeature(
QgsFeature &feature,
bool skipDefaultValues = false );
1215 bool insertVertex(
double x,
double y,
QgsFeatureId atFeatureId,
int beforeVertex );
1240 bool moveVertex(
double x,
double y,
QgsFeatureId atFeatureId,
int atVertex );
1272 Q_INVOKABLE
bool deleteSelectedFeatures(
int *deletedCount =
nullptr,
QgsVectorLayer::DeleteContext *context =
nullptr );
1361#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
1427 Q_INVOKABLE
int translateFeature(
QgsFeatureId featureId,
double dx,
double dy );
1470 Q_INVOKABLE
Qgis::GeometryOperationResult splitParts( const
QgsPointSequence &splitLine,
bool topologicalEditing = false );
1492 Q_DECL_DEPRECATED
Qgis::GeometryOperationResult splitFeatures( const QVector<
QgsPointXY> &splitLine,
bool topologicalEditing = false )
SIP_DEPRECATED;
1513 Q_INVOKABLE
Qgis::GeometryOperationResult splitFeatures( const
QgsPointSequence &splitLine,
bool topologicalEditing = false );
1537 Q_INVOKABLE
Qgis::GeometryOperationResult splitFeatures( const
QgsCurve *curve,
QgsPointSequence &topologyTestPoints
SIP_OUT,
bool preserveCircular = false,
bool topologicalEditing = false );
1552 int addTopologicalPoints( const
QgsGeometry &geom );
1588 int addTopologicalPoints( const
QgsPoint &p );
1631 bool isSpatial() const
FINAL;
1634 bool isModified() const override;
1641 bool isAuxiliaryField(
int index,
int &srcIndex ) const;
1644 void reload()
FINAL;
1688 bool setReadOnly(
bool readonly = true );
1695 bool supportsEditing() const override;
1749 bool changeAttributeValue(
QgsFeatureId fid,
int field, const QVariant &newValue, const QVariant &oldValue = QVariant(),
bool skipDefaultValues = false );
1796 bool addAttribute( const
QgsField &field );
1802 void setFieldAlias(
int index, const QString &aliasString );
1808 void removeFieldAlias(
int index );
1819 bool renameAttribute(
int index, const QString &newName );
1827 QString attributeAlias(
int index ) const;
1830 QString attributeDisplayName(
int index ) const;
1854 if ( a0 < 0 || a0 >= sipCpp->fields().count() )
1856 PyErr_SetString( PyExc_KeyError, QByteArray::number( a0 ) );
1861 sipCpp->setFieldSplitPolicy( a0, a1 );
1870 Q_DECL_DEPRECATED QSet<QString> excludeAttributesWms() const
SIP_DEPRECATED;
1876 Q_DECL_DEPRECATED
void setExcludeAttributesWms( const QSet<QString> &att )
SIP_DEPRECATED;
1882 Q_DECL_DEPRECATED QSet<QString> excludeAttributesWfs() const
SIP_DEPRECATED;
1888 Q_DECL_DEPRECATED
void setExcludeAttributesWfs( const QSet<QString> &att )
SIP_DEPRECATED;
1898 virtual
bool deleteAttribute(
int attr );
1907 bool deleteAttributes( const QList<
int> &attrs );
1921 bool deleteFeature(
QgsFeatureId fid, DeleteContext *context =
nullptr );
1936 bool deleteFeatures( const
QgsFeatureIds &fids, DeleteContext *context =
nullptr );
1961 Q_INVOKABLE
bool commitChanges(
bool stopEditing = true );
1968 QStringList commitErrors() const;
1979 Q_INVOKABLE
bool rollBack(
bool deleteBuffer = true );
1987 QList<
QgsRelation> referencingRelations(
int idx ) const;
2023 void beginEditCommand(
const QString &text );
2026 void endEditCommand();
2029 void destroyEditCommand();
2035 Q_DECL_DEPRECATED
static void drawVertexMarker(
double x,
double y, QPainter &p,
Qgis::VertexMarkerType type,
int vertexSize );
2045 void updateFields();
2073 void setDefaultValueDefinition(
int index,
const QgsDefaultValue &definition );
2092 QgsFieldConstraints::Constraints fieldConstraints(
int fieldIndex )
const;
2098 QMap< QgsFieldConstraints::Constraint, QgsFieldConstraints::ConstraintStrength> fieldConstraintsAndStrength(
int fieldIndex )
const;
2123 QString constraintExpression(
int index )
const;
2131 QString constraintDescription(
int index )
const;
2140 void setConstraintExpression(
int index,
const QString &expression,
const QString &description = QString() );
2147 void setFieldConfigurationFlags(
int index, Qgis::FieldConfigurationFlags flags );
2160 Qgis::FieldConfigurationFlags fieldConfigurationFlags(
int index )
const;
2200 QStringList uniqueStringsMatching(
int index, const QString &substring,
int limit = -1,
2217 QVariant minimumValue(
int index ) const
FINAL;
2233 QVariant maximumValue(
int index ) const
FINAL;
2255 void minimumAndMaximumValue(
int index, QVariant &minimum
SIP_OUT, QVariant &maximum
SIP_OUT ) const;
2270 QVariant aggregate(
Qgis::Aggregate aggregate,
2271 const QString &fieldOrExpression,
2280 void setFeatureBlendMode( QPainter::CompositionMode blendMode );
2282 QPainter::CompositionMode featureBlendMode() const;
2284 QString htmlMetadata() const
FINAL;
2347 void setReadExtentFromXml(
bool readExtentFromXml );
2355 bool readExtentFromXml() const;
2361 bool isEditCommandActive()
const {
return mEditCommandActive; }
2406 void setAllowCommit(
bool allowCommit )
SIP_SKIP;
2451 Q_INVOKABLE
void deselect(
const QgsFeatureIds &featureIds );
2459 Q_INVOKABLE
void removeSelection();
2479 virtual void updateExtents(
bool force =
false );
2495 Q_INVOKABLE
bool startEditing();
2757 void invalidateSymbolCountedFlag();
2758 void onFeatureCounterCompleted();
2759 void onFeatureCounterTerminated();
2760 void onJoinedFieldsChanged();
2762 void onRelationsLoaded();
2763 void onSymbolsCounted();
2764 void onDirtyTransaction(
const QString &sql,
const QString &name );
2765 void emitDataChanged();
2766 void onAfterCommitChangesDependency();
2780 bool isReadOnly() const
FINAL;
2801 void setDataSourcePrivate( const QString &dataSource, const QString &baseName, const QString &provider, const
QgsDataProvider::ProviderOptions &options,
QgsDataProvider::ReadFlags flags ) override;
2804 void readSldLabeling( const QDomNode &node );
2818 void minimumOrMaximumValue(
int index, QVariant *minimum, QVariant *maximum )
const;
2820 void createEditBuffer();
2821 void clearEditBuffer();
2830 QString mDisplayExpression;
2836 bool mDataSourceReadOnly =
false;
2844 bool mReadOnly =
false;
2865 QMap<QString, QgsDefaultValue> mDefaultExpressionMap;
2868 QMap< QString, Qgis::FieldDomainSplitPolicy > mAttributeSplitPolicy;
2871 QSet<int> mDefaultValueOnUpdateFields;
2874 QMap< QString, QgsFieldConstraints::Constraints > mFieldConstraints;
2880 QMap< QString, QPair< QString, QString > > mFieldConstraintExpressions;
2882 QMap< QString, Qgis::FieldConfigurationFlags > mFieldConfigurationFlags;
2883 QMap< QString, QgsEditorWidgetSetup > mFieldWidgetSetups;
2901 bool mLabelsEnabled =
false;
2904 bool mLabelFontNotFoundNotified =
false;
2907 QPainter::CompositionMode mFeatureBlendMode = QPainter::CompositionMode_SourceOver;
2910 bool mVertexMarkerOnlyForSelection =
false;
2912 QStringList mCommitErrors;
2932 mutable bool mValidExtent2D =
false;
2933 mutable bool mLazyExtent2D =
true;
2934 mutable bool mValidExtent3D =
false;
2935 mutable bool mLazyExtent3D =
true;
2938 std::unique_ptr<QgsAuxiliaryLayer> mAuxiliaryLayer;
2941 QString mAuxiliaryLayerKey;
2944 bool mSymbolFeatureCounted =
false;
2947 QHash<QString, long long> mSymbolFeatureCountMap;
2948 QHash<QString, QgsFeatureIds> mSymbolFeatureIdMap;
2951 bool mEditCommandActive =
false;
2954 bool mCommitChangesActive =
false;
2956 bool mReadExtentFromXml;
2964 mutable QMutex mFeatureSourceConstructorMutex;
2968 std::unique_ptr<QgsGeometryOptions> mGeometryOptions;
2970 bool mAllowCommit =
true;
2978 bool mDataChangedFired =
false;
2980 QList<QgsWeakRelation> mWeakRelations;
2982 bool mSetLegendFromStyle =
false;
2984 QList< QgsFeatureRendererGenerator * > mRendererGenerators;
2987 QTimer *mRefreshRendererTimer =
nullptr;
2992 bool mLoadAllStoredStyle =
false;
The Qgis class provides global constants for use throughout the application.
GeometryOperationResult
Success or failure of a geometry operation.
SpatialIndexPresence
Enumeration of spatial index presence states.
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.
A 3-dimensional box composed of x, y, z coordinates.
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)
Fetch next feature and stores in f, returns true on success.
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.
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.
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 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.
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.