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87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/***************************************************************************
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qgsrelationreferencewidgetwrapper.h
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--------------------------------------
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Date : 20.4.2013
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Copyright : (C) 2013 Matthias Kuhn
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Email : matthias at opengis dot ch
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSRELATIONREFERENCEWIDGETWRAPPER_H
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#define QGSRELATIONREFERENCEWIDGETWRAPPER_H
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#include "qgseditorwidgetwrapper.h"
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#include "qgis_sip.h"
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#include "qgis_gui.h"
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#include "qgsvectorlayerref.h"
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class QgsRelationReferenceWidget;
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class QgsMapCanvas;
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class QgsMessageBar;
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/**
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* \ingroup gui
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* Wraps a relation reference widget.
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*
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* Options:
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* <ul>
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* <li><b>ShowForm</b> <i>If TRUE, an embedded form with the referenced feature will be shown.</i></li>
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* <li><b>MapIdentification</b> <i>Will offer a map tool to pick a referenced feature on the map canvas. Only use for layers with geometry.</i></li>
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* <li><b>ReadOnly</b> <i>If TRUE, will represent the referenced widget in a read-only line edit. Can speed up loading.</i></li>
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* <li><b>AllowNULL</b> <i>Will offer NULL as a value.</i></li>
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* <li><b>Relation</b> <i>The ID of the relation that will be used to define this widget.</i></li>
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* ReadOnly
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* </ul>
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*
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*/
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class GUI_EXPORT QgsRelationReferenceWidgetWrapper : public QgsEditorWidgetWrapper
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{
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Q_OBJECT
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public:
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//! Constructor for QgsRelationReferenceWidgetWrapper
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explicit QgsRelationReferenceWidgetWrapper( QgsVectorLayer *vl,
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int fieldIdx,
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QWidget *editor,
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QgsMapCanvas *canvas,
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QgsMessageBar *messageBar,
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QWidget *parent SIP_TRANSFERTHIS = nullptr );
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QWidget *createWidget( QWidget *parent ) override;
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void initWidget( QWidget *editor ) override;
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QVariant value() const override;
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bool valid() const override;
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void showIndeterminateState() override;
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QVariantList additionalFieldValues() const override;
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QStringList additionalFields() const override;
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public slots:
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void setEnabled( bool enabled ) override;
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private slots:
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void foreignKeysChanged( const QVariantList &values );
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protected:
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void updateConstraintWidgetStatus() override;
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private:
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void updateValues( const QVariant &val, const QVariantList &additionalValues = QVariantList() ) override;
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QgsRelationReferenceWidget *mWidget = nullptr;
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QgsMapCanvas *mCanvas = nullptr;
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QgsMessageBar *mMessageBar = nullptr;
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bool mIndeterminateState;
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friend class TestQgsRelationReferenceWidget;
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};
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#endif // QGSRELATIONREFERENCEWIDGETWRAPPER_H
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