qgsvirtuallayertask.h

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/***************************************************************************
                          qgsvirtuallayertask.h  -  description
                             -------------------
    begin                : Jan 19, 2018
    copyright            : (C) 2017 by Paul Blottiere
    email                : blottiere.paul@gmail.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 QGSVIRTUALLAYERTASK_H
#define QGSVIRTUALLAYERTASK_H
 
#include "qgstaskmanager.h"
#include "qgsvectorlayer.h"
#include "qgsvirtuallayerdefinition.h"

class CORE_EXPORT QgsVirtualLayerTask : public QgsTask
{
    Q_OBJECT
 
  public:
    QgsVirtualLayerTask( const QgsVirtualLayerDefinition &definition );

    QgsVectorLayer *layer();

    QgsVectorLayer *takeLayer();

    QgsVirtualLayerDefinition definition() const;

    bool run() override;

    void cancel() override;

    QString exceptionText() const;

    void setExceptionText( const QString &exceptionText );
 
  private:
    QString mExceptionText;
    QgsVirtualLayerDefinition mDefinition;
    std::unique_ptr<QgsVectorLayer> mLayer;
};
 
#endif // QGSVECTORLAYERTASK_H