qgsrelationreferencesearchwidgetwrapper.h

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/***************************************************************************
    qgsrelationreferencesearchwidgetwrapper.h
     ----------------------------------------
    Date                 : 2016-05-25
    Copyright            : (C) 2016 Nyall Dawson
    Email                : nyall dot dawson at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSRELATIONREFERENCESEARCHWIDGETWRAPPER_H
#define QGSRELATIONREFERENCESEARCHWIDGETWRAPPER_H
 
#include "qgssearchwidgetwrapper.h"
 
#include <QComboBox>
#include <QListWidget>
#include <QLineEdit>
 
#include "qgis_gui.h"
#include "qgis_sip.h"
 
class QgsRelationReferenceWidgetFactory;
class QgsMapCanvas;
class QgsRelationReferenceWidget;
 
class GUI_EXPORT QgsRelationReferenceSearchWidgetWrapper : public QgsSearchWidgetWrapper
{
    Q_OBJECT
 
  public:
 
    explicit QgsRelationReferenceSearchWidgetWrapper( QgsVectorLayer *vl, int fieldIdx, QgsMapCanvas *canvas, QWidget *parent = nullptr );
 
    QVariant value() const;
 
    bool applyDirectly() override;
    QString expression() const override;
    bool valid() const override;
    QgsSearchWidgetWrapper::FilterFlags supportedFlags() const override;
    QString createExpression( QgsSearchWidgetWrapper::FilterFlags flags ) const override;
 
  public slots:
 
    void clearWidget() override;
    void setEnabled( bool enabled ) override;
 
  protected:
    QWidget *createWidget( QWidget *parent ) override;
    void initWidget( QWidget *editor ) override;
 
  public slots:
 
    Q_DECL_DEPRECATED void onValueChanged( const QVariant &value ) SIP_DEPRECATED;
 
  protected slots:
    void setExpression( const QString &exp ) override;
 
  private:
    void onValuesChanged( const QVariantList &values );
 
    QgsRelationReferenceWidget *mWidget = nullptr;
    QgsVectorLayer *mLayer = nullptr;
    QgsMapCanvas *mCanvas = nullptr;
 
    friend class QgsRelationReferenceWidgetFactory;
};
 
#endif // QGSRELATIONREFERENCESEARCHWIDGETWRAPPER_H