Provides a list of features based on filter conditions. More...
#include <qgsfeaturepickermodel.h>
Inheritance diagram for QgsFeaturePickerModel:
Signals | |
| void | featureChanged (const QgsFeature &feature) |
| Emitted when the current feature changes. More... | |
 Signals inherited from QgsFeaturePickerModelBase | |
| void | allowNullChanged () |
| Add a NULL entry to the list. More... | |
| void | beginUpdate () |
| Notification that the model is about to be changed because a job was completed. More... | |
| void | currentFeatureChanged () |
| Emitted when the current feature in the model has changed This emitted both when the extra value changes and when the extra value status changes. More... | |
| void | displayExpressionChanged () |
| The display expression will be used for. More... | |
| void | endUpdate () |
| Notification that the model change is finished. More... | |
| void | extraIdentifierValueChanged () |
| Allows specifying one value that does not need to match the filter criteria but will still be available in the model. More... | |
| void | extraIdentifierValueIndexChanged (int index) |
| The index at which the extra identifier value is available within the model. More... | |
| void | extraValueDoesNotExistChanged () |
| Flag indicating that the extraIdentifierValue does not exist in the data. More... | |
| void | fetchGeometryChanged () |
| Emitted when the fetching of the geometry changes. More... | |
| void | fetchLimitChanged () |
| Emitted when the fetching limit for the feature request changes. More... | |
| void | filterExpressionChanged () |
| An additional filter expression to apply, next to the filterValue. More... | |
| void | filterJobCompleted () |
| Indicates that a filter job has been completed and new data may be available. More... | |
| void | filterValueChanged () |
| This value will be used to filter the features available from this model. More... | |
| void | isLoadingChanged () |
| Indicator if the model is currently performing any feature iteration in the background. More... | |
| void | sourceLayerChanged () |
| The source layer from which features will be fetched. More... | |
Public Member Functions | |
| QgsFeaturePickerModel (QObject *parent=nullptr) | |
| Create a new QgsFeaturePickerModel, optionally specifying a parent. More... | |
| QgsFeature | feature () const |
| Returns the current feature. More... | |
| void | setExtraIdentifierValueToNull () override |
| Allows specifying one value that does not need to match the filter criteria but will still be available in the model as NULL value(s). More... | |
| void | setFeature (const QgsFeatureId &fid) |
| Set the feature to the given feature id. More... | |
| Public Member Functions inherited from QgsFeaturePickerModelBase | |
| QgsFeaturePickerModelBase (QObject *parent=nullptr) | |
| Create a new QgsFeaturePickerModelBase, optionally specifying a parent. More... | |
| ~QgsFeaturePickerModelBase () override | |
| bool | allowNull () const |
| Add a NULL entry to the list. More... | |
| int | columnCount (const QModelIndex &parent) const override |
| QVariant | data (const QModelIndex &index, int role) const override |
| QString | displayExpression () const |
| The display expression will be used for. More... | |
| int | extraIdentifierValueIndex () const |
| The index at which the extra identifier value is available within the model. More... | |
| bool | extraValueDoesNotExist () const |
| Flag indicating that the extraIdentifierValue does not exist in the data. More... | |
| bool | fetchGeometry () const |
| Returns if the geometry is fetched. More... | |
| int | fetchLimit () const |
| Returns the feature request fetch limit. More... | |
| QString | filterExpression () const |
| An additional filter expression to apply, next to the filterValue. More... | |
| QString | filterValue () const |
| This value will be used to filter the features available from this model. More... | |
| QModelIndex | index (int row, int column, const QModelIndex &parent) const override |
| bool | isLoading () const |
| Indicator if the model is currently performing any feature iteration in the background. More... | |
| QModelIndex | parent (const QModelIndex &child) const override |
| int | rowCount (const QModelIndex &parent) const override |
| void | setAllowNull (bool allowNull) |
| Add a NULL entry to the list. More... | |
| void | setDisplayExpression (const QString &displayExpression) |
| The display expression will be used for. More... | |
| virtual void | setExtraIdentifierValueToNull ()=0 |
| Allows specifying one value that does not need to match the filter criteria but will still be available in the model as NULL value(s). More... | |
| void | setFetchGeometry (bool fetchGeometry) |
| Defines if the geometry will be fetched. More... | |
| void | setFetchLimit (int fetchLimit) |
| Defines the feature request fetch limit If set to 0, no limit is applied when fetching. More... | |
| void | setFilterExpression (const QString &filterExpression) |
| An additional filter expression to apply, next to the filterValue. More... | |
| void | setFilterValue (const QString &filterValue) |
| This value will be used to filter the features available from this model. More... | |
| void | setSourceLayer (QgsVectorLayer *sourceLayer) |
| The source layer from which features will be fetched. More... | |
| QgsVectorLayer * | sourceLayer () const |
| The source layer from which features will be fetched. More... | |
Additional Inherited Members | |
| Public Types inherited from QgsFeaturePickerModelBase | |
| enum | Role { IdentifierValueRole = Qt::UserRole , IdentifierValuesRole , ValueRole , FeatureRole , FeatureIdRole } |
| Extra roles that can be used to fetch data from this model. More... | |
| Protected Member Functions inherited from QgsFeaturePickerModelBase | |
| virtual bool | compareEntries (const QgsFeatureExpressionValuesGatherer::Entry &a, const QgsFeatureExpressionValuesGatherer::Entry &b) const =0 |
Returns true if the 2 entries refers to the same feature. More... | |
| virtual QgsFeatureExpressionValuesGatherer::Entry | createEntry (const QVariant &identifier) const =0 |
| Creates an entry with just the identifier so the feature can be retrieved in a next iteration. More... | |
| virtual QgsFeatureExpressionValuesGatherer * | createValuesGatherer (const QgsFeatureRequest &request) const =0 |
| Creates the value gatherer. More... | |
| virtual QVariant | entryIdentifier (const QgsFeatureExpressionValuesGatherer::Entry &entry) const =0 |
| Returns the identifier of the given entry. More... | |
| QVariant | extraIdentifierValue () const |
| Allows specifying one value that does not need to match the filter criteria but will still be available in the model. More... | |
| virtual bool | identifierIsNull (const QVariant &identifier) const =0 |
Returns true if the entry is null The identifier can be either the feature ID or the list of identifier fields. More... | |
| virtual QVariant | nullIdentifier () const =0 |
| Returns a null identifier. More... | |
| virtual QSet< QString > | requestedAttributes () const |
| Returns the attributes to be fetched in the request. More... | |
| virtual void | requestToReloadCurrentFeature (QgsFeatureRequest &request)=0 |
| Update the request to match the current feature to be reloaded. More... | |
| void | setExtraIdentifierValue (const QVariant &extraIdentifierValue) |
| Allows specifying one value that does not need to match the filter criteria but will still be available in the model. More... | |
| void | setExtraIdentifierValueUnguarded (const QVariant &identifierValue) |
| This will set the identifier value to be set in the model even if it doesn't exist currently in the data. More... | |
| Protected Attributes inherited from QgsFeaturePickerModelBase | |
| QVector< QgsFeatureExpressionValuesGatherer::Entry > | mEntries |
| QVariant | mExtraIdentifierValue |
| The current identifier value. More... | |
| int | mExtraValueIndex = -1 |
| The current index. More... | |
| Properties inherited from QgsFeaturePickerModelBase | |
| bool | allowNull |
| QString | displayExpression |
| int | extraIdentifierValueIndex |
| bool | fetchGeometry |
| int | fetchLimit |
| QString | filterExpression |
| QString | filterValue |
| QgsVectorLayer * | sourceLayer |
Detailed Description
Provides a list of features based on filter conditions.
Features are fetched asynchronously.
- Since
- QGIS 3.0
Definition at line 31 of file qgsfeaturepickermodel.h.
Constructor & Destructor Documentation
◆ QgsFeaturePickerModel()
|
explicit |
Create a new QgsFeaturePickerModel, optionally specifying a parent.
Definition at line 24 of file qgsfeaturepickermodel.cpp.
Member Function Documentation
◆ feature()
| QgsFeature QgsFeaturePickerModel::feature | ( | ) | const |
Returns the current feature.
Definition at line 74 of file qgsfeaturepickermodel.cpp.
◆ featureChanged
|
signal |
Emitted when the current feature changes.
◆ setExtraIdentifierValueToNull()
|
overridevirtual |
Allows specifying one value that does not need to match the filter criteria but will still be available in the model as NULL value(s).
- Since
- QGIS 3.10
Implements QgsFeaturePickerModelBase.
Definition at line 64 of file qgsfeaturepickermodel.cpp.
◆ setFeature()
| void QgsFeaturePickerModel::setFeature | ( | const QgsFeatureId & | fid | ) |
Set the feature to the given feature id.
Definition at line 69 of file qgsfeaturepickermodel.cpp.
The documentation for this class was generated from the following files:
- /build/qgis-3.30.0+99sid/src/core/qgsfeaturepickermodel.h
- /build/qgis-3.30.0+99sid/src/core/qgsfeaturepickermodel.cpp
