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0bfc9bb6e3
This adds a new gui widget QgsFieldValuesLineEdit which includes an autocompleter populated with current field values. The autocompleter is nicely updated in the background so that the gui remains nice and responsive, even if there's millions of records in the associated table. It's now used as a search widget for text fields, so can be seen in the browser window if you set the filter to a text field, or if you launch the form based select/filter by selecting a layer and pressing F3.
60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
/** \class QgsFieldValuesLineEdit
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* \ingroup gui
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* A line edit with an autocompleter which takes unique values from a vector layer's fields.
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* The autocompleter is populated from the vector layer in the background to ensure responsive
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* interaction with the widget.
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* \note added in QGIS 3.0
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*/
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class QgsFieldValuesLineEdit: QgsFilterLineEdit
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{
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%TypeHeaderCode
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#include <qgsfieldvalueslineedit.h>
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%End
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public:
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/** Constructor for QgsFieldValuesLineEdit
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* @param parent parent widget
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*/
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QgsFieldValuesLineEdit( QWidget *parent /TransferThis/ = nullptr );
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virtual ~QgsFieldValuesLineEdit();
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/** Sets the layer containing the field that values will be shown from.
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* @param layer vector layer
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* @see layer()
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* @see setAttributeIndex()
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*/
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void setLayer( QgsVectorLayer* layer );
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/** Returns the layer containing the field that values will be shown from.
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* @see setLayer()
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* @see attributeIndex()
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*/
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QgsVectorLayer* layer() const;
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/** Sets the attribute index for the field containing values to show in the widget.
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* @param index index of attribute
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* @see attributeIndex()
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* @see setLayer()
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*/
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void setAttributeIndex( int index );
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/** Returns the attribute index for the field containing values shown in the widget.
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* @see setAttributeIndex()
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* @see layer()
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*/
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int attributeIndex() const;
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signals:
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/** Emitted when the layer associated with the widget changes.
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* @param layer vector layer
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*/
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void layerChanged( QgsVectorLayer* layer );
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/** Emitted when the field associated with the widget changes.
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* @param index new attribute index for field
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*/
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void attributeIndexChanged( int index );
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};
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