qgsprocessingmodelchildparametersource.h

Go to the documentation of this file.

/***************************************************************************
                         qgsprocessingmodelchildparametersource.h
                         ----------------------------------------
    begin                : June 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 QGSPROCESSINGMODELCHILDPARAMETERSOURCE_H
#define QGSPROCESSINGMODELCHILDPARAMETERSOURCE_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgsprocessing.h"
 
class QgsProcessingParameterDefinition;
class QgsProcessingModelAlgorithm;


class CORE_EXPORT QgsProcessingModelChildParameterSource
{
  public:
    QgsProcessingModelChildParameterSource() = default;
 
    bool operator==( const QgsProcessingModelChildParameterSource &other ) const;
    bool operator!=( const QgsProcessingModelChildParameterSource &other ) const { return !operator==( other ); }

    static QgsProcessingModelChildParameterSource fromStaticValue( const QVariant &value );

    static QgsProcessingModelChildParameterSource fromModelParameter( const QString &parameterName );

    static QgsProcessingModelChildParameterSource fromChildOutput( const QString &childId, const QString &outputName );

    static QgsProcessingModelChildParameterSource fromExpression( const QString &expression );

    static QgsProcessingModelChildParameterSource fromExpressionText( const QString &text );

    Qgis::ProcessingModelChildParameterSource source() const;

    void setSource( Qgis::ProcessingModelChildParameterSource source );

    QVariant staticValue() const { return mStaticValue; }

    void setStaticValue( const QVariant &value )
    {
      mStaticValue = value;
      mSource = Qgis::ProcessingModelChildParameterSource::StaticValue;
    }

    QString parameterName() const { return mParameterName; }

    void setParameterName( const QString &name )
    {
      mParameterName = name;
      mSource = Qgis::ProcessingModelChildParameterSource::ModelParameter;
    }

    QString outputChildId() const { return mChildId; }

    void setOutputChildId( const QString &id )
    {
      mChildId = id;
      mSource = Qgis::ProcessingModelChildParameterSource::ChildOutput;
    }

    QString outputName() const { return mOutputName; }

    void setOutputName( const QString &name )
    {
      mOutputName = name;
      mSource = Qgis::ProcessingModelChildParameterSource::ChildOutput;
    }

    QString expression() const { return mExpression; }

    void setExpression( const QString &expression )
    {
      mExpression = expression;
      mSource = Qgis::ProcessingModelChildParameterSource::Expression;
    }

    QString expressionText() const { return mExpressionText; }

    void setExpressionText( const QString &text )
    {
      mExpressionText = text;
      mSource = Qgis::ProcessingModelChildParameterSource::ExpressionText;
    }

    QVariant toVariant() const;

    bool loadVariant( const QVariantMap &map );

    QString asPythonCode( QgsProcessing::PythonOutputType outputType, const QgsProcessingParameterDefinition *definition, const QMap< QString, QString > &friendlyChildNames ) const;

    QString asPythonComment( const QgsProcessingParameterDefinition *definition ) const;

    QString friendlyIdentifier( QgsProcessingModelAlgorithm *model ) const;
 
  private:
    Qgis::ProcessingModelChildParameterSource mSource = Qgis::ProcessingModelChildParameterSource::StaticValue;
    QVariant mStaticValue;
    QString mParameterName;
    QString mChildId;
    QString mOutputName;
    QString mExpression;
    QString mExpressionText;
};
 
Q_DECLARE_METATYPE( QgsProcessingModelChildParameterSource );
CORE_EXPORT QDataStream &operator<<( QDataStream &out, const QgsProcessingModelChildParameterSource &source );
CORE_EXPORT QDataStream &operator>>( QDataStream &in, QgsProcessingModelChildParameterSource &source );
 
#ifndef SIP_RUN
typedef QList< QgsProcessingModelChildParameterSource > QgsProcessingModelChildParameterSources;
#endif

 
#endif // QGSPROCESSINGMODELCHILDPARAMETERSOURCE_H