qgsfieldcombobox.h

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/***************************************************************************
   qgsfieldcombobox.h
    --------------------------------------
   Date                 : 01.04.2014
   Copyright            : (C) 2014 Denis Rouzaud
   Email                : [email protected]
***************************************************************************
*                                                                         *
*   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 QGSFIELDCOMBOBOX_H
#define QGSFIELDCOMBOBOX_H
 
#include "qgis_gui.h"
#include "qgis_sip.h"
#include "qgsfieldproxymodel.h"
 
#include <QComboBox>
 
class QgsMapLayer;
class QgsVectorLayer;
class QgsFields;

class GUI_EXPORT QgsFieldComboBox : public QComboBox
{
    Q_OBJECT
    Q_PROPERTY( QgsFieldProxyModel::Filters filters READ filters WRITE setFilters )
    Q_PROPERTY( bool allowEmptyFieldName READ allowEmptyFieldName WRITE setAllowEmptyFieldName )
 
  public:

    explicit QgsFieldComboBox( QWidget *parent SIP_TRANSFERTHIS = nullptr );

    void setFilters( QgsFieldProxyModel::Filters filters );

    QgsFieldProxyModel::Filters filters() const { return mFieldProxyModel->filters(); }

    void setAllowEmptyFieldName( bool allowEmpty );

    bool allowEmptyFieldName() const;

    QString currentField() const;

    QgsVectorLayer *layer() const;

    void setFields( const QgsFields &fields );

    QgsFields fields() const;
 
  signals:
    void fieldChanged( const QString &fieldName );
 
  public slots:

    void setLayer( QgsMapLayer *layer );

    void setField( const QString &fieldName );
 
  protected slots:
    void indexChanged( int i );
 
  private:
    QgsFieldProxyModel *mFieldProxyModel = nullptr;
};
 
#endif // QGSFIELDCOMBOBOX_H