This offers a combobox with autocompleter that allows selecting features from a layer. More...

#include <qgsfeaturelistcombobox.h>

Inheritance diagram for QgsFeatureListComboBox:

Signals
void	allowNullChanged ()
	Determines if a NULL value should be available in the list. More...

void	displayExpressionChanged ()
	The display expression will be used to display features as well as the the value to match the typed text against. More...

void	filterExpressionChanged ()
	An additional expression to further restrict the available features. More...

void	identifierFieldChanged ()
	Field name that will be used to uniquely identify the current feature. More...

void	identifierValueChanged ()
	The identifier value of the currently selected feature. More...

void	modelUpdated ()
	The underlying model has been updated. More...

void	sourceLayerChanged ()
	The layer from which features should be listed. More...

Public Member Functions
	QgsFeatureListComboBox (QWidget *parent=nullptr)
	Create a new QgsFeatureListComboBox, optionally specifying a parent. More...

bool	allowNull () const
	Determines if a NULL value should be available in the list. More...

QgsFeatureRequest	currentFeatureRequest () const
	Shorthand for getting a feature request to query the currently selected feature. More...

QModelIndex	currentModelIndex () const
	The index of the currently selected item. More...

QString	displayExpression () const
	The display expression will be used to display features as well as the the value to match the typed text against. More...

QString	filterExpression () const
	An additional expression to further restrict the available features. More...

void	focusOutEvent (QFocusEvent *event) override

QString	identifierField () const
	Field name that will be used to uniquely identify the current feature. More...

QVariant	identifierValue () const
	The identifier value of the currently selected feature. More...

void	keyPressEvent (QKeyEvent *event) override

int	nullIndex () const
	Returns the current index of the NULL value, or -1 if NULL values are not allowed. More...

void	setAllowNull (bool allowNull)
	Determines if a NULL value should be available in the list. More...

void	setDisplayExpression (const QString &displayExpression)
	The display expression will be used to display features as well as the the value to match the typed text against. More...

void	setFilterExpression (const QString &filterExpression)
	An additional expression to further restrict the available features. More...

void	setIdentifierField (const QString &identifierField)
	Field name that will be used to uniquely identify the current feature. More...

void	setIdentifierValue (const QVariant &identifierValue)
	The identifier value of the currently selected feature. More...

void	setSourceLayer (QgsVectorLayer *sourceLayer)
	The layer from which features should be listed. More...

QgsVectorLayer *	sourceLayer () const
	The layer from which features should be listed. More...

Properties
bool	allowNull

QString	displayExpression

QString	filterExpression

QString	identifierField

QVariant	identifierValue

QgsVectorLayer	sourceLayer

Detailed Description

This offers a combobox with autocompleter that allows selecting features from a layer.

It will show up to 100 entries at a time. The entries can be chosen based on the displayExpression and whenever text is typed into the combobox, the completer and popup will adjust to features matching the typed text.

Since: QGIS 3.0

Definition at line 39 of file qgsfeaturelistcombobox.h.

Constructor & Destructor Documentation

◆ QgsFeatureListComboBox()

QgsFeatureListComboBox::QgsFeatureListComboBox ( QWidget * parent = nullptr )

Create a new QgsFeatureListComboBox, optionally specifying a parent.

Definition at line 27 of file qgsfeaturelistcombobox.cpp.

Member Function Documentation

◆ allowNull()

bool QgsFeatureListComboBox::allowNull ( ) const

Determines if a NULL value should be available in the list.

◆ allowNullChanged

void QgsFeatureListComboBox::allowNullChanged ( )

signal

Determines if a NULL value should be available in the list.

◆ currentFeatureRequest()

QgsFeatureRequest QgsFeatureListComboBox::currentFeatureRequest ( ) const

Shorthand for getting a feature request to query the currently selected feature.

Definition at line 217 of file qgsfeaturelistcombobox.cpp.

◆ currentModelIndex()

QModelIndex QgsFeatureListComboBox::currentModelIndex ( ) const

The index of the currently selected item.

Definition at line 176 of file qgsfeaturelistcombobox.cpp.

◆ displayExpression()

QString QgsFeatureListComboBox::displayExpression ( ) const

The display expression will be used to display features as well as the the value to match the typed text against.

◆ displayExpressionChanged

void QgsFeatureListComboBox::displayExpressionChanged ( )

signal

The display expression will be used to display features as well as the the value to match the typed text against.

◆ filterExpression()

QString QgsFeatureListComboBox::filterExpression ( ) const

An additional expression to further restrict the available features.

This can be used to integrate additional spatial or other constraints.

◆ filterExpressionChanged

void QgsFeatureListComboBox::filterExpressionChanged ( )

signal

An additional expression to further restrict the available features.

This can be used to integrate additional spatial or other constraints.

◆ focusOutEvent()

void QgsFeatureListComboBox::focusOutEvent ( QFocusEvent * event )

override

Definition at line 181 of file qgsfeaturelistcombobox.cpp.

◆ identifierField()

QString QgsFeatureListComboBox::identifierField ( ) const

Field name that will be used to uniquely identify the current feature.

Normally the primary key of the layer.

◆ identifierFieldChanged

void QgsFeatureListComboBox::identifierFieldChanged ( )

signal

Field name that will be used to uniquely identify the current feature.

Normally the primary key of the layer.

◆ identifierValue()

QVariant QgsFeatureListComboBox::identifierValue ( ) const

The identifier value of the currently selected feature.

A value from the identifierField.

◆ identifierValueChanged

void QgsFeatureListComboBox::identifierValueChanged ( )

signal

The identifier value of the currently selected feature.

A value from the identifierField.

◆ keyPressEvent()

void QgsFeatureListComboBox::keyPressEvent ( QKeyEvent * event )

override

Definition at line 188 of file qgsfeaturelistcombobox.cpp.

◆ modelUpdated

void QgsFeatureListComboBox::modelUpdated ( )

signal

The underlying model has been updated.

Since: QGIS 3.2

◆ nullIndex()

int QgsFeatureListComboBox::nullIndex ( ) const

Returns the current index of the NULL value, or -1 if NULL values are not allowed.

Since: QGIS 3.2

Definition at line 140 of file qgsfeaturelistcombobox.cpp.

◆ setAllowNull()

void QgsFeatureListComboBox::setAllowNull ( bool allowNull )

Determines if a NULL value should be available in the list.

Definition at line 202 of file qgsfeaturelistcombobox.cpp.

◆ setDisplayExpression()

void QgsFeatureListComboBox::setDisplayExpression ( const QString & displayExpression )

The display expression will be used to display features as well as the the value to match the typed text against.

Definition at line 80 of file qgsfeaturelistcombobox.cpp.

◆ setFilterExpression()

void QgsFeatureListComboBox::setFilterExpression ( const QString & filterExpression )

An additional expression to further restrict the available features.

This can be used to integrate additional spatial or other constraints.

TODO!

Definition at line 230 of file qgsfeaturelistcombobox.cpp.

◆ setIdentifierField()

void QgsFeatureListComboBox::setIdentifierField ( const QString & identifierField )

Field name that will be used to uniquely identify the current feature.

Normally the primary key of the layer.

Definition at line 171 of file qgsfeaturelistcombobox.cpp.

◆ setIdentifierValue()

void QgsFeatureListComboBox::setIdentifierValue ( const QVariant & identifierValue )

The identifier value of the currently selected feature.

A value from the identifierField.

Definition at line 212 of file qgsfeaturelistcombobox.cpp.

◆ setSourceLayer()

void QgsFeatureListComboBox::setSourceLayer ( QgsVectorLayer * sourceLayer )

The layer from which features should be listed.

Definition at line 70 of file qgsfeaturelistcombobox.cpp.

◆ sourceLayer()

QgsVectorLayer* QgsFeatureListComboBox::sourceLayer ( ) const

The layer from which features should be listed.

◆ sourceLayerChanged

void QgsFeatureListComboBox::sourceLayerChanged ( )

signal

The layer from which features should be listed.

Property Documentation

◆ allowNull

bool QgsFeatureListComboBox::allowNull

readwrite

Definition at line 48 of file qgsfeaturelistcombobox.h.

◆ displayExpression

QString QgsFeatureListComboBox::displayExpression

readwrite

Definition at line 44 of file qgsfeaturelistcombobox.h.

◆ filterExpression

QString QgsFeatureListComboBox::filterExpression

readwrite

Definition at line 45 of file qgsfeaturelistcombobox.h.

◆ identifierField

QString QgsFeatureListComboBox::identifierField

readwrite

Definition at line 47 of file qgsfeaturelistcombobox.h.

◆ identifierValue

QVariant QgsFeatureListComboBox::identifierValue

readwrite

Definition at line 46 of file qgsfeaturelistcombobox.h.

◆ sourceLayer

QgsVectorLayer * QgsFeatureListComboBox::sourceLayer

readwrite

Definition at line 43 of file qgsfeaturelistcombobox.h.

The documentation for this class was generated from the following files:

/tmp/buildd/qgis-3.2.0+99unstable/src/gui/qgsfeaturelistcombobox.h
/tmp/buildd/qgis-3.2.0+99unstable/src/gui/qgsfeaturelistcombobox.cpp

Signals

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ QgsFeatureListComboBox()

Member Function Documentation

◆ allowNull()

◆ allowNullChanged

◆ currentFeatureRequest()

◆ currentModelIndex()

◆ displayExpression()

◆ displayExpressionChanged

◆ filterExpression()

◆ filterExpressionChanged

◆ focusOutEvent()

◆ identifierField()

◆ identifierFieldChanged

◆ identifierValue()

◆ identifierValueChanged

◆ keyPressEvent()

◆ modelUpdated

◆ nullIndex()

◆ setAllowNull()

◆ setDisplayExpression()

◆ setFilterExpression()

◆ setIdentifierField()

◆ setIdentifierValue()

◆ setSourceLayer()

◆ sourceLayer()

◆ sourceLayerChanged

Property Documentation

◆ allowNull

◆ displayExpression

◆ filterExpression

◆ identifierField

◆ identifierValue

◆ sourceLayer