You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

---

### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


/***************************************************************************
                         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

#define SIP_NO_FILE
#include "qgsprocessingwidgetwrapper.h"
#include "qgsprocessingparameterdefinitionwidget.h"
#include "qgsmaptool.h"
#include "qgsprocessingcontext.h"
#include "processing/models/qgsprocessingmodelchildparametersource.h"

#include <QAbstractButton>

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 QgsProcessingLayerOutputDestinationWidget;
class QgsCheckableComboBox;

///@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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QCheckBox *mDefaultCheckBox = nullptr;

};

class GUI_EXPORT QgsProcessingBooleanWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingBooleanWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                       QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsProjectionSelectionWidget *mCrsSelector = nullptr;
};

class GUI_EXPORT QgsProcessingCrsWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingCrsWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                   QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;
    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                      QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;
  private:

    QLineEdit *mLineEdit = nullptr;
    QPlainTextEdit *mPlainTextEdit = nullptr;

    friend class TestProcessingGui;
};


class GUI_EXPORT QgsProcessingAuthConfigWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingAuthConfigWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                          QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

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

  protected:

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

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                       QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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 );
    void setUnits( QgsUnitTypes::DistanceUnit unit );

  protected:

    QVariant widgetValue() const override;

  private:

    QgsUnitTypes::DistanceUnit mBaseUnit = QgsUnitTypes::DistanceUnknownUnit;
    QLabel *mLabel = nullptr;
    QWidget *mWarningLabel = nullptr;
    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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QLineEdit *mDefaultLineEdit = nullptr;

};

class GUI_EXPORT QgsProcessingScaleWidgetWrapper : public QgsProcessingNumericWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingScaleWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                     QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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, QgsProcessingParameterDefinition::Flags 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,
                                     QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;
    QStringList compatibleParameterTypes() const override;
    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsProcessingMatrixModelerWidget *mMatrixWidget = nullptr;

};

class GUI_EXPORT QgsProcessingMatrixWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingMatrixWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                      QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;
    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                    QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QComboBox *mParentLayerComboBox = nullptr;
    QgsExpressionLineEdit *mDefaultLineEdit = nullptr;

};

class GUI_EXPORT QgsProcessingExpressionWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingExpressionWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                          QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;

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

    QgsFieldExpressionWidget *mFieldExpWidget = nullptr;
    QgsExpressionBuilderWidget *mExpBuilderWidget = nullptr;
    QgsExpressionLineEdit *mExpLineEdit = nullptr;
    std::unique_ptr< QgsVectorLayer > 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsProcessingEnumModelerWidget *mEnumWidget = nullptr;

};

class GUI_EXPORT QgsProcessingEnumWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingEnumWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                    QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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,
                                      QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QComboBox *mParentLayoutComboBox = nullptr;

};

class GUI_EXPORT QgsProcessingLayoutItemWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingLayoutItemWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                          QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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 );

    QVariant value() const;
    void clear();
    void setValue( const QgsPointXY &point, const QgsCoordinateReferenceSystem &crs );

  signals:

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

  private slots:

    void selectOnCanvas();
    void updatePoint( const QgsPointXY &point );
    void pointPicked();

  private:

    QgsFilterLineEdit *mLineEdit = nullptr;
    QToolButton *mButton = nullptr;
    QgsMapCanvas *mCanvas = nullptr;
    QgsCoordinateReferenceSystem mCrs;
    QPointer< QgsMapTool > mPrevTool;
    std::unique_ptr< QgsProcessingPointMapTool > mTool;
    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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QLineEdit *mDefaultLineEdit = nullptr;

};

class GUI_EXPORT QgsProcessingPointWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingPointWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                     QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QLineEdit *mDefaultLineEdit = nullptr;

};

class GUI_EXPORT QgsProcessingGeometryWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingGeometryWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;
    QString modelerExpressionFormatString() const override;
  private:

    QLineEdit *mLineEdit = 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsExtentWidget *mDefaultWidget = nullptr;

};

class GUI_EXPORT QgsProcessingExtentWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingExtentWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                      QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                     QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
                                     QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QComboBox *mDefaultComboBox = nullptr;

};

class GUI_EXPORT QgsProcessingMapThemeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingMapThemeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QComboBox *mTypeComboBox = nullptr;

};

class GUI_EXPORT QgsProcessingDateTimeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingDateTimeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags 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,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsCheckableComboBox *mLayerTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingMapLayerWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingMapLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;
    QString modelerExpressionFormatString() 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,
                                           QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;

    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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsCheckableComboBox *mGeometryTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingVectorLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingVectorLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                           QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;

    QString modelerExpressionFormatString() const override;
    QList< int > compatibleDataTypes( const QgsProcessingParameterDefinition *parameter ) 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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QgsCheckableComboBox *mGeometryTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingFeatureSourceWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingFeatureSourceWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;

    QString modelerExpressionFormatString() const override;
    QList< int > compatibleDataTypes( const QgsProcessingParameterDefinition *parameter ) const override;
};


class GUI_EXPORT QgsProcessingMeshLayerWidgetWrapper : public QgsProcessingMapLayerWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingMeshLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
                                         QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() const override;

    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, QgsProcessingParameterDefinition::Flags 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,
                                    QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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 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;
    QLineEdit *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, QgsProcessingParameterDefinition::Flags flags ) const override;

  private:

    QComboBox *mLayerTypeComboBox = nullptr;
};

class GUI_EXPORT QgsProcessingMultipleLayerWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
{
    Q_OBJECT

  public:

    QgsProcessingMultipleLayerWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

    // QgsProcessingParameterWidgetFactoryInterface
    QString parameterType() const override;
    QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType 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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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,
                                      QgsProcessingGui::WidgetType type = QgsProcessingGui::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;

    QStringList compatibleParameterTypes() const override;

    QStringList compatibleOutputTypes() 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,
                                           QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QString modelerExpressionFormatString() const override;

  private:
    QgsProcessingContext mContext;

};

class GUI_EXPORT QgsProcessingVectorDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingVectorDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QString modelerExpressionFormatString() const override;

};

class GUI_EXPORT QgsProcessingRasterDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingRasterDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QString modelerExpressionFormatString() const override;

};

class GUI_EXPORT QgsProcessingFileDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingFileDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QString modelerExpressionFormatString() const override;

};

class GUI_EXPORT QgsProcessingFolderDestinationWidgetWrapper : public QgsProcessingOutputWidgetWrapper
{
    Q_OBJECT

  public:

    QgsProcessingFolderDestinationWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
        QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );

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

  protected:
    QString modelerExpressionFormatString() const override;

};

///@endcond PRIVATE

#endif // QGSPROCESSINGWIDGETWRAPPERIMPL_H