31 , mCompleter( new QCompleter( mModel ) )
33 mCompleter->setCaseSensitivity( Qt::CaseInsensitive );
34 mCompleter->setFilterMode( Qt::MatchContains );
35 setCompleter( mCompleter );
36 mCompleter->setWidget(
this );
46 connect( mCompleter,
static_cast<void( QCompleter::* )(
const QModelIndex & )
>( &QCompleter::highlighted ),
this, &QgsFeatureListComboBox::onItemSelected );
47 connect( mCompleter,
static_cast<void( QCompleter::* )(
const QModelIndex & )
>( &QCompleter::activated ),
this, &QgsFeatureListComboBox::onActivated );
51 connect( mModel, &QgsFeatureFilterModel::dataChanged,
this, &QgsFeatureListComboBox::onDataChanged );
53 connect(
this,
static_cast<void(
QgsFeatureListComboBox::* )(
int )
>( &QgsFeatureListComboBox::currentIndexChanged ),
this, &QgsFeatureListComboBox::onCurrentIndexChanged );
60 setLineEdit( mLineEdit );
63 connect( mLineEdit, &QgsFilterLineEdit::textEdited,
this, &QgsFeatureListComboBox::onCurrentTextChanged );
65 setToolTip( tr(
"Just start typing what you are looking for." ) );
88 void QgsFeatureListComboBox::onCurrentTextChanged(
const QString &text )
90 mIsCurrentlyEdited =
true;
91 mPopupRequested =
true;
95 void QgsFeatureListComboBox::onFilterUpdateCompleted()
97 if ( mPopupRequested )
98 mCompleter->complete();
100 mPopupRequested =
false;
103 void QgsFeatureListComboBox::onLoadingChanged()
108 void QgsFeatureListComboBox::onItemSelected(
const QModelIndex &index )
110 setCurrentIndex( index.row() );
113 void QgsFeatureListComboBox::onCurrentIndexChanged(
int i )
115 if ( !mHasStoredEditState )
116 mIsCurrentlyEdited =
false;
117 QModelIndex modelIndex = mModel->
index( i, 0, QModelIndex() );
120 mLineEdit->setFont( mModel->
data( modelIndex, Qt::FontRole ).value<QFont>() );
121 QPalette palette = mLineEdit->palette();
122 palette.setBrush( mLineEdit->foregroundRole(), mModel->
data( modelIndex, Qt::ForegroundRole ).value<QBrush>() );
123 mLineEdit->setPalette( palette );
126 void QgsFeatureListComboBox::onActivated( QModelIndex modelIndex )
132 void QgsFeatureListComboBox::storeLineEditState()
134 if ( mIsCurrentlyEdited )
136 mHasStoredEditState =
true;
137 mLineEditState.store( mLineEdit );
141 void QgsFeatureListComboBox::restoreLineEditState()
143 if ( mIsCurrentlyEdited )
145 mHasStoredEditState =
false;
146 mLineEditState.restore( mLineEdit );
162 void QgsFeatureListComboBox::onDataChanged(
const QModelIndex &topLeft,
const QModelIndex &bottomRight,
const QVector<int> &roles )
165 if ( !mIsCurrentlyEdited )
168 if ( currentIndex >= topLeft.row() && currentIndex <= bottomRight.row() )
170 QModelIndex modelIndex = mModel->
index( currentIndex, 0, QModelIndex() );
194 QComboBox::focusOutEvent( event );
200 if ( event->key() == Qt::Key_Escape )
204 QComboBox::keyReleaseEvent( event );
245 void QgsFeatureListComboBox::LineEditState::store( QLineEdit *lineEdit )
247 text = lineEdit->text();
248 selectionStart = lineEdit->selectionStart();
249 selectionLength = lineEdit->selectedText().length();
250 cursorPosition = lineEdit->cursorPosition();
254 void QgsFeatureListComboBox::LineEditState::restore( QLineEdit *lineEdit )
const 256 lineEdit->setText( text );
257 lineEdit->setCursorPosition( cursorPosition );
258 if ( selectionStart > -1 )
259 lineEdit->setSelection( selectionStart, selectionLength );
void setIdentifierValue(const QVariant &identifierValue)
The identifier value of the currently selected feature.
QString identifierField() const
Field name that will be used to uniquely identify the current feature.
Provides a list of features based on filter conditions.
This offers a combobox with autocompleter that allows selecting features from a layer.
QgsFeatureRequest currentFeatureRequest() const
Shorthand for getting a feature request to query the currently selected feature.
QModelIndex currentModelIndex() const
The index of the currently selected item.
QSet< QgsFeatureId > QgsFeatureIds
int nullIndex() const
Returns the current index of the NULL value, or -1 if NULL values are not allowed.
void setSelectOnFocus(bool selectOnFocus)
Will select all text when this widget receives the focus.
static QString quotedColumnRef(QString name)
Returns a quoted column reference (in double quotes)
void beginUpdate()
Notification that the model is about to be changed because a job was completed.
QString displayExpression
Used to retrieve the displayExpression of a feature.
void identifierFieldChanged()
Field name that will be used to uniquely identify the current feature.
void setFilterExpression(const QString &filterExpression)
An additional filter expression to apply, next to the filterValue.
QString filterExpression() const
An additional expression to further restrict the available features.
void setShowSpinner(bool showSpinner)
Show a spinner icon.
void displayExpressionChanged()
The display expression will be used to display features as well as the the value to match the typed t...
void filterJobCompleted()
Indicates that a filter job has been completed and new data may be available.
void extraIdentifierValueIndexChanged(int index)
The index at which the extra identifier value is available within the model.
void setSourceLayer(QgsVectorLayer *sourceLayer)
The layer from which features should be listed.
void filterExpressionChanged()
An additional expression to further restrict the available features.
QgsVectorLayer * sourceLayer() const
The layer from which features should be listed.
QgsFeatureRequest & setFilterExpression(const QString &expression)
Set the filter expression.
void identifierFieldChanged()
The identifier field should be a unique field that can be used to identify individual features...
void setAllowNull(bool allowNull)
Determines if a NULL value should be available in the list.
QString displayExpression() const
The display expression will be used to display features as well as the value to match the typed text ...
QgsFeatureListComboBox(QWidget *parent=nullptr)
Create a new QgsFeatureListComboBox, optionally specifying a parent.
void setFilterValue(const QString &filterValue)
This value will be used to filter the features available from this model.
QModelIndex index(int row, int column, const QModelIndex &parent) const override
QString identifierField
A field of sourceLayer that is unique and should be used to identify features.
This class wraps a request for features to a vector layer (or directly its vector data provider)...
QLineEdit subclass with built in support for clearing the widget's value and handling custom null val...
static QString nullRepresentation()
This string is used to represent the value NULL throughout QGIS.
QVariant extraIdentifierValue
The value that identifies the current feature.
void identifierValueChanged()
The identifier value of the currently selected feature.
void isLoadingChanged()
Indicator if the model is currently performing any feature iteration in the background.
void allowNullChanged()
Add a NULL entry to the list.
void filterExpressionChanged()
An additional filter expression to apply, next to the filterValue.
void endUpdate()
Notification that the model change is finished.
void extraIdentifierValueChanged()
Allows specifying one value that does not need to match the filter criteria but will still be availab...
void setIdentifierField(const QString &identifierField)
The identifier field should be a unique field that can be used to identify individual features...
void setSourceLayer(QgsVectorLayer *sourceLayer)
The source layer from which features will be fetched.
void setFilterExpression(const QString &filterExpression)
An additional expression to further restrict the available features.
void sourceLayerChanged()
The source layer from which features will be fetched.
QgsFeatureRequest & setFilterFids(const QgsFeatureIds &fids)
Sets feature IDs that should be fetched.
void allowNullChanged()
Determines if a NULL value should be available in the list.
int extraIdentifierValueIndex
void keyPressEvent(QKeyEvent *event) override
void setExtraIdentifierValue(const QVariant &extraIdentifierValue)
Allows specifying one value that does not need to match the filter criteria but will still be availab...
void sourceLayerChanged()
The layer from which features should be listed.
void focusOutEvent(QFocusEvent *event) override
QVariant data(const QModelIndex &index, int role) const override
void setAllowNull(bool allowNull)
Add a NULL entry to the list.
QVariant identifierValue() const
The identifier value of the currently selected feature.
static QString quotedValue(const QVariant &value)
Returns a string representation of a literal value, including appropriate quotations where required...
Used to retrieve the identifierValue (primary key) of a feature.
void setDisplayExpression(const QString &displayExpression)
The display expression will be used for.
void setShowClearButton(bool visible)
Sets whether the widget's clear button is visible.
Represents a vector layer which manages a vector based data sets.
void setDisplayExpression(const QString &displayExpression)
The display expression will be used to display features as well as the value to match the typed text ...
QgsVectorLayer sourceLayer
void modelUpdated()
The underlying model has been updated.
void setIdentifierField(const QString &identifierField)
Field name that will be used to uniquely identify the current feature.
bool allowNull() const
Determines if a NULL value should be available in the list.
void displayExpressionChanged()
The display expression will be used for.