C++ (Cpp) QStringList::constLast Examples

Example #1

File: qgsprocessingmodelchildalgorithm.cpp Project: tomkralidis/QGIS

QStringList QgsProcessingModelChildAlgorithm::asPythonCode( const QgsProcessing::PythonOutputType outputType, const QgsStringMap &extraParameters, int currentIndent, int indentSize ) const
{
  QStringList lines;
  const QString baseIndent = QString( ' ' ).repeated( currentIndent );
  const QString lineIndent = QString( ' ' ).repeated( indentSize );

  if ( !algorithm() )
    return QStringList();

  QStringList paramParts;
  for ( auto paramIt = mParams.constBegin(); paramIt != mParams.constEnd(); ++paramIt )
  {
    QStringList sourceParts;
    const QgsProcessingParameterDefinition *def = algorithm() ? algorithm()->parameterDefinition( paramIt.key() ) : nullptr;
    const auto parts = paramIt.value();
    for ( const QgsProcessingModelChildParameterSource &source : parts )
    {
      QString part = source.asPythonCode( outputType, def );
      if ( !part.isEmpty() )
        sourceParts << part;
    }
    if ( sourceParts.count() == 1 )
      paramParts << QStringLiteral( "'%1': %2" ).arg( paramIt.key(), sourceParts.at( 0 ) );
    else
      paramParts << QStringLiteral( "'%1': [%2]" ).arg( paramIt.key(), sourceParts.join( ',' ) );
  }

  lines << baseIndent + QStringLiteral( "alg_params = {" );
  lines.reserve( lines.size() + paramParts.size() );
  for ( const QString &p : qgis::as_const( paramParts ) )
  {
    lines << baseIndent + lineIndent + p + ',';
  }
  for ( auto it = extraParameters.constBegin(); it != extraParameters.constEnd(); ++it )
  {
    lines << baseIndent + lineIndent + QStringLiteral( "%1: %2," ).arg( QgsProcessingUtils::stringToPythonLiteral( it.key() ), it.value() );
  }
  if ( lines.constLast().endsWith( ',' ) )
  {
    lines[ lines.count() - 1 ].truncate( lines.constLast().length() - 1 );
  }
  lines << baseIndent + QStringLiteral( "}" );

  lines << baseIndent + QStringLiteral( "outputs['%1'] = processing.run('%2', alg_params, context=context, feedback=feedback, is_child_algorithm=True)" ).arg( mId, mAlgorithmId );

  for ( auto outputIt = mModelOutputs.constBegin(); outputIt != mModelOutputs.constEnd(); ++outputIt )
  {
    lines << baseIndent + QStringLiteral( "results['%1:%2'] = outputs['%1']['%3']" ).arg( mId, outputIt.key(), outputIt.value().childOutputName() );
  }

  return lines;
}