qgsrasterfilewritertask.h

Go to the documentation of this file.

/***************************************************************************
                          qgsrasterfilewritertask.h
                          -------------------------
    begin                : April 2017
    copyright            : (C) 2017 by 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 QGSRASTERFILEWRITERTASK_H
#define QGSRASTERFILEWRITERTASK_H
 
#include "qgis_core.h"
#include "qgstaskmanager.h"
#include "qgsrasterfilewriter.h"
#include "qgscoordinatetransformcontext.h"
#include "qgsrasterinterface.h"
#include "qgsrasterpipe.h"
 
class CORE_EXPORT QgsRasterFileWriterTask : public QgsTask
{
    Q_OBJECT
 
  public:
 
    Q_DECL_DEPRECATED QgsRasterFileWriterTask( const QgsRasterFileWriter &writer, QgsRasterPipe *pipe SIP_TRANSFER,
        int columns, int rows,
        const QgsRectangle &outputExtent,
        const QgsCoordinateReferenceSystem &crs ) SIP_DEPRECATED;
 
 
    QgsRasterFileWriterTask( const QgsRasterFileWriter &writer, QgsRasterPipe *pipe SIP_TRANSFER,
                             int columns, int rows,
                             const QgsRectangle &outputExtent,
                             const QgsCoordinateReferenceSystem &crs,
                             const QgsCoordinateTransformContext &transformContext
                           );
 
    void cancel() override;
 
  signals:
 
    void writeComplete( const QString &outputUrl );
 
    void errorOccurred( int error );
 
    void errorOccurred( int error, const QString &errorMessage );
 
  protected:
 
    bool run() override;
    void finished( bool result ) override;
 
  private:
 
    QgsRasterFileWriter mWriter;
    int mRows = 0;
    int mColumns = 0;
    QgsRectangle mExtent;
    QgsCoordinateReferenceSystem mCrs;
    std::unique_ptr< QgsRasterPipe > mPipe;
 
    QString mDestFileName;
 
    std::unique_ptr< QgsRasterBlockFeedback > mFeedback;
 
    QgsRasterFileWriter::WriterError mError = QgsRasterFileWriter::NoError;
 
    QgsCoordinateTransformContext mTransformContext;
};
 
#endif //QGSRASTERFILEWRITERTASK_H