qgsproviderconnectioncombobox.h

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/***************************************************************************
   qgsproviderconnectioncombobox.h
    --------------------------------
   Date                 : March 2020
   Copyright            : (C) 2020 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 QGSPROVIDERCONNECTIONCOMBOBOX_H
#define QGSPROVIDERCONNECTIONCOMBOBOX_H
 
#include "qgis_gui.h"
#include "qgis_sip.h"
 
#include <QComboBox>
#include <QSortFilterProxyModel>
 
class QgsProviderConnectionModel;

#ifndef SIP_RUN
class GUI_EXPORT QgsProviderConnectionComboBoxSortModel : public QSortFilterProxyModel
{
    Q_OBJECT
  public:
    explicit QgsProviderConnectionComboBoxSortModel( QObject *parent = nullptr );
 
  protected:
    bool lessThan( const QModelIndex &source_left, const QModelIndex &source_right ) const override;
};
#endif

class GUI_EXPORT QgsProviderConnectionComboBox : public QComboBox
{
    Q_OBJECT
 
  public:

    explicit QgsProviderConnectionComboBox( const QString &provider, QWidget *parent SIP_TRANSFERTHIS = nullptr );

    explicit QgsProviderConnectionComboBox( QWidget *parent = nullptr ) SIP_SKIP;

    void setProvider( const QString &provider );

    void setAllowEmptyConnection( bool allowEmpty );

    bool allowEmptyConnection() const;

    QString currentConnection() const;

    QString currentConnectionUri() const;
 
  public slots:

    void setConnection( const QString &connection );
 
  signals:
    void connectionChanged( const QString &connection );
 
  private slots:
    void indexChanged( int i );
    void rowsChanged();
    void rowsAboutToBeRemoved();
    void rowsRemoved();
 
  private:
    QgsProviderConnectionModel *mModel = nullptr;
    QSortFilterProxyModel *mSortModel = nullptr;
    QString mPreviousConnection;
};
 
#endif // QGSPROVIDERCONNECTIONCOMBOBOX_H