/***************************************************************************
                         qgsprocessingwidgetwrapperimpl.h
                         ---------------------
    begin                : August 2018
    copyright            : (C) 2018 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 QGSPROCESSINGWIDGETWRAPPERIMPL_H
#define QGSPROCESSINGWIDGETWRAPPERIMPL_H

#include "qgshighlightablelineedit.h"
#include "qgsmaptool.h"
#include "qgspointcloudattribute.h"
#include "qgspointcloudlayer.h"
#include "qgsprocessingcontext.h"
#include "qgsprocessingmodelchildparametersource.h"
#include "qgsprocessingparameterdefinitionwidget.h"
#include "qgsprocessingwidgetwrapper.h"
#include "qobjectuniqueptr.h"

#include <QAbstractButton>

#define SIP_NO_FILE

class QCheckBox;
class QComboBox;
class QLineEdit;
class QPlainTextEdit;
class QToolButton;
class QButtonGroup;
class QgsProjectionSelectionWidget;
class QgsSpinBox;
class QgsDoubleSpinBox;
class QgsAuthConfigSelect;
class QgsProcessingMatrixParameterPanel;
class QgsFileWidget;
class QgsFieldExpressionWidget;
class QgsExpressionBuilderWidget;
class QgsExpressionLineEdit;
class QgsProcessingParameterEnum;
class QgsLayoutComboBox;
class QgsLayoutItemComboBox;
class QgsPrintLayout;
class QgsScaleWidget;
class QgsSnapIndicator;
class QgsFilterLineEdit;
class QgsColorButton;
class QgsCoordinateOperationWidget;
class QgsFieldComboBox;
class QgsDateTimeEdit;
class QgsDateEdit;
class QgsTimeEdit;
class QgsProviderConnectionComboBox;
class QgsDatabaseSchemaComboBox;
class QgsDatabaseTableComboBox;
class QgsExtentWidget;
class QgsProcessingEnumModelerWidget;
class QgsProcessingMatrixModelerWidget;
class QgsProcessingMapLayerComboBox;
class QgsRasterBandComboBox;
class QgsPointCloudAttributeComboBox;
class QgsProcessingLayerOutputDestinationWidget;
class QgsCheckableComboBox;
class QgsMapLayerComboBox;
class QgsProcessingPointCloudExpressionLineEdit;
class QgsProcessingRasterCalculatorExpressionLineEdit;
class QgsRubberBand;
class QgsHighlightableLineEdit;
class QgsGeometryWidget;

///@cond PRIVATE

class GUI_EXPORT QgsProcessingBooleanParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingBooleanParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QCheckBox *mDefaultCheckBox = nullptr;
};

class GUI_EXPORT QgsProcessingBooleanWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingBooleanWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QLabel *createLabel() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

  private:
    QCheckBox *mCheckBox = nullptr;
    QComboBox *mComboBox = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingCrsParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingCrsParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsProjectionSelectionWidget *mCrsSelector = nullptr;
};

class GUI_EXPORT QgsProcessingCrsWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingCrsWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsProjectionSelectionWidget *mProjectionSelectionWidget = nullptr;
    QCheckBox *mUseProjectCrsCheckBox = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingStringParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingStringParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QLineEdit *mDefaultLineEdit = nullptr;
    QCheckBox *mMultiLineCheckBox = nullptr;
};

class GUI_EXPORT QgsProcessingStringWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingStringWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

  private:
    QLineEdit *mLineEdit = nullptr;
    QComboBox *mComboBox = nullptr;
    QPlainTextEdit *mPlainTextEdit = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingAuthConfigWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingAuthConfigWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

  private:
    QgsAuthConfigSelect *mAuthConfigSelect = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingNumberParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingNumberParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mTypeComboBox = nullptr;
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
};


class GUI_EXPORT QgsProcessingNumericWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingNumericWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

  protected:
    QgsSpinBox *mSpinBox = nullptr;
    QgsDoubleSpinBox *mDoubleSpinBox = nullptr;

  private:
    static double calculateStep( double minimum, double maximum );

    bool mAllowingNull = false;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingDistanceParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingDistanceParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingDistanceWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingDistanceWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setUnitParameterValue( const QVariant &value, const QgsAbstractProcessingParameterWidgetWrapper *unitParameterWrapper = nullptr );
    void setUnits( Qgis::DistanceUnit unit );

  protected:
    QVariant widgetValue() const override;

  private:
    Qgis::DistanceUnit mBaseUnit = Qgis::DistanceUnit::Unknown;
    QLabel *mLabel = nullptr;
    QWidget *mWarningLabel = nullptr;
    QComboBox *mUnitsCombo = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingAreaParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingAreaParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingAreaWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingAreaWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setUnitParameterValue( const QVariant &value, const QgsAbstractProcessingParameterWidgetWrapper *unitParameterWrapper = nullptr );
    void setUnits( Qgis::AreaUnit unit );

  protected:
    QVariant widgetValue() const override;

  private:
    Qgis::AreaUnit mBaseUnit = Qgis::AreaUnit::Unknown;
    QLabel *mLabel = nullptr;
    QWidget *mWarningLabel = nullptr;
    QComboBox *mUnitsCombo = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingVolumeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingVolumeParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingVolumeWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingVolumeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setUnitParameterValue( const QVariant &value, const QgsAbstractProcessingParameterWidgetWrapper *unitParameterWrapper = nullptr );
    void setUnits( Qgis::VolumeUnit unit );

  protected:
    QVariant widgetValue() const override;

  private:
    Qgis::VolumeUnit mBaseUnit = Qgis::VolumeUnit::Unknown;
    QLabel *mLabel = nullptr;
    QWidget *mWarningLabel = nullptr;
    QComboBox *mUnitsCombo = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingDurationParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingDurationParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
    QComboBox *mUnitsCombo = nullptr;
};

class GUI_EXPORT QgsProcessingDurationWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingDurationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QLabel *createLabel() override SIP_FACTORY;

  protected:
    QVariant widgetValue() const override;
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;

  private:
    Qgis::TemporalUnit mBaseUnit = Qgis::TemporalUnit::Milliseconds;
    QComboBox *mUnitsCombo = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingScaleParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingScaleParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QLineEdit *mDefaultLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingScaleWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingScaleWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;

  protected:
    QVariant widgetValue() const override;
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;

  private:
    QgsScaleWidget *mScaleWidget = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingRangeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingRangeParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mTypeComboBox = nullptr;
    QLineEdit *mMinLineEdit = nullptr;
    QLineEdit *mMaxLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingRangeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingRangeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;
    QString modelerExpressionFormatString() const override;

  protected:
    QgsDoubleSpinBox *mMinSpinBox = nullptr;
    QgsDoubleSpinBox *mMaxSpinBox = nullptr;

  private:
    int mBlockChangedSignal = 0;
    bool mAllowingNull = false;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingMatrixParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingMatrixParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsProcessingMatrixModelerWidget *mMatrixWidget = nullptr;
};

class GUI_EXPORT QgsProcessingMatrixWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingMatrixWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsProcessingMatrixParameterPanel *mMatrixWidget = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingFileParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingFileParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mTypeComboBox = nullptr;
    QComboBox *mFilterComboBox = nullptr;
    QgsFileWidget *mDefaultFileWidget = nullptr;
};

class GUI_EXPORT QgsProcessingFileWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingFileWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsFileWidget *mFileWidget = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingExpressionParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingExpressionParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QgsExpressionLineEdit *mDefaultQgisLineEdit = nullptr;
    QgsProcessingPointCloudExpressionLineEdit *mDefaultPointCloudLineEdit = nullptr;
    QgsProcessingRasterCalculatorExpressionLineEdit *mDefaultRasterCalculatorLineEdit = nullptr;
    QComboBox *mExpressionTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingExpressionWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingExpressionWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;
    void registerProcessingContextGenerator( QgsProcessingContextGenerator *generator ) override;

  public slots:
    void setParentLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;
    const QgsVectorLayer *linkedVectorLayer() const override;

  private:
    QgsFieldExpressionWidget *mFieldExpWidget = nullptr;
    QgsExpressionBuilderWidget *mExpBuilderWidget = nullptr;
    QgsExpressionLineEdit *mExpLineEdit = nullptr;
    QgsProcessingPointCloudExpressionLineEdit *mPointCloudExpLineEdit = nullptr;
    QgsProcessingRasterCalculatorExpressionLineEdit *mRasterCalculatorExpLineEdit = nullptr;
    std::unique_ptr<QgsMapLayer> mParentLayer;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingEnumCheckboxPanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingEnumCheckboxPanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterEnum *param = nullptr, int columns = 2 );
    QVariant value() const;
    void setValue( const QVariant &value );

  signals:

    void changed();

  private slots:

    void showPopupMenu();
    void selectAll();
    void deselectAll();

  private:
    const QgsProcessingParameterEnum *mParam = nullptr;
    QMap<QVariant, QAbstractButton *> mButtons;
    QButtonGroup *mButtonGroup = nullptr;
    int mColumns = 2;
    bool mBlockChangedSignal = false;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingEnumPanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingEnumPanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterEnum *param = nullptr );
    QVariant value() const { return mValue; }
    void setValue( const QVariant &value );

  signals:

    void changed();

  private slots:

    void showDialog();

  private:
    void updateSummaryText();

    const QgsProcessingParameterEnum *mParam = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QToolButton *mToolButton = nullptr;

    QVariantList mValue;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingEnumParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingEnumParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsProcessingEnumModelerWidget *mEnumWidget = nullptr;
};

class GUI_EXPORT QgsProcessingEnumWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingEnumWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QComboBox *mComboBox = nullptr;
    QgsProcessingEnumPanelWidget *mPanel = nullptr;
    QgsProcessingEnumCheckboxPanelWidget *mCheckboxPanel = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingLayoutWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingLayoutWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsLayoutComboBox *mComboBox = nullptr;
    QComboBox *mPlainComboBox = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingLayoutItemParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingLayoutItemParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayoutComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingLayoutItemWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingLayoutItemWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;


  public slots:
    void setLayoutParameterValue( const QVariant &value );
    void setLayout( QgsPrintLayout *layout );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsLayoutItemComboBox *mComboBox = nullptr;
    QLineEdit *mLineEdit = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingPointMapTool : public QgsMapTool
{
    Q_OBJECT
  public:
    QgsProcessingPointMapTool( QgsMapCanvas *canvas );
    ~QgsProcessingPointMapTool() override;
    void deactivate() override;
    void canvasMoveEvent( QgsMapMouseEvent *e ) override;
    void canvasPressEvent( QgsMapMouseEvent *e ) override;
    void keyPressEvent( QKeyEvent *e ) override;

  signals:

    void clicked( const QgsPointXY &point );
    void complete();

  private:
    std::unique_ptr<QgsSnapIndicator> mSnapIndicator;
    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingPointPanel : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingPointPanel( QWidget *parent );
    void setMapCanvas( QgsMapCanvas *canvas );
    void setAllowNull( bool allowNull );
    void setShowPointOnCanvas( bool show );
    void setAllowSelectOnCanvas( bool allow );

    QVariant value() const;
    void clear();
    void setValue( const QgsPointXY &point, const QgsCoordinateReferenceSystem &crs );
    void showEvent( QShowEvent *event ) override;

  signals:

    void toggleDialogVisibility( bool visible );
    void changed();

  private slots:

    void selectOnCanvas();
    void updatePoint( const QgsPointXY &point );
    void pointPicked();
    void textChanged( const QString &text );

  private:
    void updateRubberBand();

    QgsFilterLineEdit *mLineEdit = nullptr;
    bool mShowPointOnCanvas = false;
    bool mFirstShow = true;
    bool mAllowSelectOnCanvas = true;
    QToolButton *mButton = nullptr;
    QgsMapCanvas *mCanvas = nullptr;
    QgsCoordinateReferenceSystem mCrs;
    QPointer<QgsMapTool> mPrevTool;
    std::unique_ptr<QgsProcessingPointMapTool> mTool;
    QgsPointXY mPoint;
    QObjectUniquePtr<QgsRubberBand> mMapPointRubberBand;
    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingPointParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingPointParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QLineEdit *mDefaultLineEdit = nullptr;
};

class GUI_EXPORT QgsProcessingPointWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingPointWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;
    void setDialog( QDialog *dialog ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsProcessingPointPanel *mPanel = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QDialog *mDialog = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingGeometryParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingGeometryParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsGeometryWidget *mGeometryWidget = nullptr;
};

class GUI_EXPORT QgsProcessingGeometryWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingGeometryWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsGeometryWidget *mGeometryWidget = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingExtentParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingExtentParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsExtentWidget *mDefaultWidget = nullptr;
};

class GUI_EXPORT QgsProcessingExtentWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingExtentWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;
    void setDialog( QDialog *dialog ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsExtentWidget *mExtentWidget = nullptr;
    QDialog *mDialog = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingColorParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingColorParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsColorButton *mDefaultColorButton = nullptr;
    QCheckBox *mAllowOpacity = nullptr;
};

class GUI_EXPORT QgsProcessingColorWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingColorWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsColorButton *mColorButton = nullptr;
    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingCoordinateOperationParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingCoordinateOperationParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QLineEdit *mDefaultLineEdit = nullptr;

    QComboBox *mSourceParamComboBox = nullptr;
    QComboBox *mDestParamComboBox = nullptr;

    QgsProjectionSelectionWidget *mStaticSourceWidget = nullptr;
    QgsProjectionSelectionWidget *mStaticDestWidget = nullptr;
};

class GUI_EXPORT QgsProcessingCoordinateOperationWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingCoordinateOperationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    void setSourceCrsParameterValue( const QVariant &value );
    void setDestinationCrsParameterValue( const QVariant &value );

    QgsCoordinateOperationWidget *mOperationWidget = nullptr;
    QgsMapCanvas *mCanvas = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QgsCoordinateReferenceSystem mSourceCrs;
    QgsCoordinateReferenceSystem mDestCrs;
    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingFieldPanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingFieldPanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterField *param = nullptr );

    void setFields( const QgsFields &fields );

    QgsFields fields() const { return mFields; }

    QVariant value() const { return mValue; }
    void setValue( const QVariant &value );

  signals:

    void changed();

  private slots:

    void showDialog();

  private:
    void updateSummaryText();

    QgsFields mFields;

    const QgsProcessingParameterField *mParam = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QToolButton *mToolButton = nullptr;

    QVariantList mValue;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingFieldParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingFieldParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QComboBox *mDataTypeComboBox = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
    QCheckBox *mAllowMultipleCheckBox = nullptr;
    QCheckBox *mDefaultToAllCheckBox = nullptr;
};

class GUI_EXPORT QgsProcessingFieldWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingFieldWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setParentLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;
    const QgsVectorLayer *linkedVectorLayer() const override;

  private:
    QgsFieldComboBox *mComboBox = nullptr;
    QgsProcessingFieldPanelWidget *mPanel = nullptr;
    QLineEdit *mLineEdit = nullptr;

    std::unique_ptr<QgsVectorLayer> mParentLayer;

    QgsFields filterFields( const QgsFields &fields ) const;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingMapThemeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingMapThemeParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mDefaultComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingMapThemeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingMapThemeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QComboBox *mComboBox = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingDateTimeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingDateTimeParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingDateTimeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingDateTimeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsDateTimeEdit *mDateTimeEdit = nullptr;
    QgsDateEdit *mDateEdit = nullptr;
    QgsTimeEdit *mTimeEdit = nullptr;

    friend class TestProcessingGui;
};


//
// QgsProcessingProviderConnectionWidgetWrapper
//

class GUI_EXPORT QgsProcessingProviderConnectionParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingProviderConnectionParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mProviderComboBox = nullptr;
    QLineEdit *mDefaultEdit = nullptr;
};

class GUI_EXPORT QgsProcessingProviderConnectionWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingProviderConnectionWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;


    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsProviderConnectionComboBox *mProviderComboBox = nullptr;
    int mBlockSignals = 0;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingDatabaseSchemaParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingDatabaseSchemaParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mConnectionParamComboBox = nullptr;
    QLineEdit *mDefaultEdit = nullptr;
};

class GUI_EXPORT QgsProcessingDatabaseSchemaWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingDatabaseSchemaWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;


    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  public slots:
    void setParentConnectionWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsDatabaseSchemaComboBox *mSchemaComboBox = nullptr;
    int mBlockSignals = 0;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingDatabaseTableParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingDatabaseTableParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mConnectionParamComboBox = nullptr;
    QComboBox *mSchemaParamComboBox = nullptr;
    QLineEdit *mDefaultEdit = nullptr;
};

class GUI_EXPORT QgsProcessingDatabaseTableWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingDatabaseTableWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;


    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  public slots:
    void setParentConnectionWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );
    void setParentSchemaWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsDatabaseTableComboBox *mTableComboBox = nullptr;
    int mBlockSignals = 0;
    QString mConnection;
    QString mProvider;
    QString mSchema;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingMapLayerParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingMapLayerParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsCheckableComboBox *mLayerTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingMapLayerWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingMapLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;
    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;
    Qgis::ProcessingModelChildParameterSource defaultModelSource( const QgsProcessingParameterDefinition *parameter ) const override;

  private:
    QPointer<QgsProcessingMapLayerComboBox> mComboBox;
    int mBlockSignals = 0;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingRasterLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingRasterLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};


class GUI_EXPORT QgsProcessingVectorLayerParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingVectorLayerParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsCheckableComboBox *mGeometryTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingVectorLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingVectorLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};


class GUI_EXPORT QgsProcessingFeatureSourceParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingFeatureSourceParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QgsCheckableComboBox *mGeometryTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingFeatureSourceWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingFeatureSourceWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};


class GUI_EXPORT QgsProcessingMeshLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingMeshLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};


class GUI_EXPORT QgsProcessingRasterBandPanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingRasterBandPanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterBand *param = nullptr );

    void setBands( const QList<int> &bands );
    void setBandNames( const QHash<int, QString> &names );
    QList<int> bands() const { return mBands; }

    QVariant value() const { return mValue; }
    void setValue( const QVariant &value );

  signals:

    void changed();

  private slots:

    void showDialog();

  private:
    void updateSummaryText();

    QList<int> mBands;
    QHash<int, QString> mBandNames;

    const QgsProcessingParameterBand *mParam = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QToolButton *mToolButton = nullptr;

    QVariantList mValue;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingBandParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingBandParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
    QCheckBox *mAllowMultipleCheckBox = nullptr;
};

class GUI_EXPORT QgsProcessingBandWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingBandWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setParentLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsRasterBandComboBox *mComboBox = nullptr;
    QgsProcessingRasterBandPanelWidget *mPanel = nullptr;
    QLineEdit *mLineEdit = nullptr;

    std::unique_ptr<QgsRasterLayer> mParentLayer;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingMultipleLayerLineEdit : public QgsHighlightableLineEdit
{
    Q_OBJECT

  public:
    QgsProcessingMultipleLayerLineEdit( QWidget *parent = nullptr, const QgsProcessingParameterMultipleLayers *param = nullptr );
    void dragEnterEvent( QDragEnterEvent *event ) override;
    void dragLeaveEvent( QDragLeaveEvent *event ) override;
    void dropEvent( QDropEvent *event ) override;

  signals:

    void layersDropped( const QVariantList &value );

  private:
    const QgsProcessingParameterMultipleLayers *mParam = nullptr;
};

class GUI_EXPORT QgsProcessingMultipleLayerPanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingMultipleLayerPanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterMultipleLayers *param = nullptr );

    QVariant value() const { return mValue; }
    void setValue( const QVariant &value );

    void setProject( QgsProject *project );
    void setModel( QgsProcessingModelAlgorithm *model, const QString &modelChildAlgorithmID );

  signals:

    void changed();

  private slots:

    void showDialog();

  private:
    void updateSummaryText();

    const QgsProcessingParameterMultipleLayers *mParam = nullptr;
    QgsProcessingMultipleLayerLineEdit *mLineEdit = nullptr;
    QToolButton *mToolButton = nullptr;

    QVariantList mValue;
    QList<QgsProcessingModelChildParameterSource> mModelSources;
    QgsProcessingModelAlgorithm *mModel = nullptr;

    QgsProject *mProject = nullptr;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingMultipleLayerParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingMultipleLayerParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mLayerTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingMultipleLayerWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingMultipleLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsProcessingMultipleLayerPanelWidget *mPanel = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingOutputWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingOutputWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;
    QVariantMap customProperties() const override;

  private:
    QgsProcessingLayerOutputDestinationWidget *mOutputWidget = nullptr;
    int mBlockSignals = 0;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingFeatureSinkWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingFeatureSinkWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;

  private:
    QgsProcessingContext mContext;
};

class GUI_EXPORT QgsProcessingVectorDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingVectorDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

class GUI_EXPORT QgsProcessingRasterDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingRasterDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

class GUI_EXPORT QgsProcessingPointCloudDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingPointCloudDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

class GUI_EXPORT QgsProcessingFileDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingFileDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

class GUI_EXPORT QgsProcessingFolderDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingFolderDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

class GUI_EXPORT QgsProcessingPointCloudLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingPointCloudLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};


class GUI_EXPORT QgsProcessingAnnotationLayerWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingAnnotationLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;
    void setWidgetContext( const QgsProcessingParameterWidgetContext &context ) override;

    QWidget *createWidget() override SIP_FACTORY;

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QPointer<QgsMapLayerComboBox> mComboBox;
    int mBlockSignals = 0;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingPointCloudAttributePanelWidget : public QWidget
{
    Q_OBJECT

  public:
    QgsProcessingPointCloudAttributePanelWidget( QWidget *parent = nullptr, const QgsProcessingParameterPointCloudAttribute *param = nullptr );

    void setAttributes( const QgsPointCloudAttributeCollection &attributes );

    QgsPointCloudAttributeCollection attributes() const { return mAttributes; }

    QVariant value() const { return mValue; }
    void setValue( const QVariant &value );

  signals:

    void changed();

  private slots:

    void showDialog();

  private:
    void updateSummaryText();

    QgsPointCloudAttributeCollection mAttributes;

    const QgsProcessingParameterPointCloudAttribute *mParam = nullptr;
    QLineEdit *mLineEdit = nullptr;
    QToolButton *mToolButton = nullptr;

    QVariantList mValue;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingPointCloudAttributeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
{
    Q_OBJECT
  public:
    QgsProcessingPointCloudAttributeParameterDefinitionWidget(
      QgsProcessingContext &context,
      const QgsProcessingParameterWidgetContext &widgetContext,
      const QgsProcessingParameterDefinition *definition = nullptr,
      const QgsProcessingAlgorithm *algorithm = nullptr,
      QWidget *parent SIP_TRANSFERTHIS = nullptr
    );
    QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;

  private:
    QComboBox *mParentLayerComboBox = nullptr;
    QLineEdit *mDefaultLineEdit = nullptr;
    QCheckBox *mAllowMultipleCheckBox = nullptr;
    QCheckBox *mDefaultToAllCheckBox = nullptr;
};

class GUI_EXPORT QgsProcessingPointCloudAttributeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:
    QgsProcessingPointCloudAttributeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
    QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
      QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
    ) override;

    // QgsProcessingParameterWidgetWrapper interface
    QWidget *createWidget() override SIP_FACTORY;
    void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;

  public slots:
    void setParentLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *parentWrapper );

  protected:
    void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
    QVariant widgetValue() const override;

    QString modelerExpressionFormatString() const override;

  private:
    QgsPointCloudAttributeComboBox *mComboBox = nullptr;
    QgsProcessingPointCloudAttributePanelWidget *mPanel = nullptr;
    QLineEdit *mLineEdit = nullptr;

    std::unique_ptr<QgsPointCloudLayer> mParentLayer;

    friend class TestProcessingGui;
};

class GUI_EXPORT QgsProcessingVectorTileDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:
    QgsProcessingVectorTileDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;

  protected:
    QString modelerExpressionFormatString() const override;
};

///@endcond PRIVATE

#endif // QGSPROCESSINGWIDGETWRAPPERIMPL_H
