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qgsvectorfilewritertask.cpp
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qgsvectorfilewritertask.cpp
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/***************************************************************************
qgsvectorfilewritertask.cpp
---------------------------
begin : Feb 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. *
* *
***************************************************************************/
#include "qgsvectorfilewritertask.h"
QgsVectorFileWriterTask::QgsVectorFileWriterTask( QgsVectorLayer* layer, const QString& fileName, const QgsVectorFileWriter::SaveVectorOptions& options )
: QgsTask( tr( "Saving %1 " ).arg( fileName ), QgsTask::CanCancel )
, mLayer( layer )
, mDestFileName( fileName )
, mOptions( options )
{
if ( !mOptions.feedback )
{
mOwnedFeedback.reset( new QgsFeedback() );
mOptions.feedback = mOwnedFeedback.get();
}
if ( mLayer )
setDependentLayers( QStringList() << mLayer->id() );
}
void QgsVectorFileWriterTask::cancel()
{
mOptions.feedback->cancel();
QgsTask::cancel();
}
bool QgsVectorFileWriterTask::run()
{
if ( !mLayer )
return false;
mError = QgsVectorFileWriter::writeAsVectorFormat(
mLayer, mDestFileName, mOptions, &mNewFilename, &mErrorMessage );
return mError == QgsVectorFileWriter::NoError;
}
void QgsVectorFileWriterTask::finished( bool result )
{
if ( result )
emit writeComplete( mNewFilename );
else
emit errorOccurred( mError, mErrorMessage );
}