qgsalgorithmrasterlogicalop.h

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/***************************************************************************
                         qgsalgorithmrasterlogicalop.h
                         ---------------------
    begin                : March 2019
    copyright            : (C) 2019 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 QGSALGORITHMRASTERLOGICALOP_H
#define QGSALGORITHMRASTERLOGICALOP_H
 
 
#include "qgis_sip.h"
#include "qgsprocessingalgorithm.h"
#include "qgsrasteranalysisutils.h"
#include "qgsrasterprojector.h"
 
#define SIP_NO_FILE


class ANALYSIS_EXPORT QgsRasterBooleanLogicAlgorithmBase : public QgsProcessingAlgorithm
{
  public:
    QgsRasterBooleanLogicAlgorithmBase() = default;
 
    void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
    QStringList tags() const override;
    QString group() const override;
    QString groupId() const override;
 
  protected:
    bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
    QVariantMap processAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
 
    std::function<void( const std::vector<std::unique_ptr<QgsRasterBlock>> &, bool &, bool &, int, int, bool )> mExtractValFunc;
 
  private:
    std::vector<QgsRasterAnalysisUtils::RasterLogicInput> mInputs;
    Qgis::DataType mDataType = Qgis::DataType::Float32;
    double mNoDataValue = -9999;
    int mLayerWidth = 0;
    int mLayerHeight = 0;
    QgsRectangle mExtent;
    QgsCoordinateReferenceSystem mCrs;
    double mRasterUnitsPerPixelX = 0;
    double mRasterUnitsPerPixelY = 0;
    bool mTreatNodataAsFalse = false;
    friend class TestQgsProcessingAlgsPt1;
};

class ANALYSIS_EXPORT QgsRasterLogicalOrAlgorithm : public QgsRasterBooleanLogicAlgorithmBase
{
  public:
    QgsRasterLogicalOrAlgorithm();
 
    QString name() const override;
    QString displayName() const override;
    QString shortHelpString() const override;
    QString shortDescription() const override;
    QgsRasterLogicalOrAlgorithm *createInstance() const override SIP_FACTORY;
};

class ANALYSIS_EXPORT QgsRasterLogicalAndAlgorithm : public QgsRasterBooleanLogicAlgorithmBase
{
  public:
    QgsRasterLogicalAndAlgorithm();
 
    QString name() const override;
    QString displayName() const override;
    QString shortHelpString() const override;
    QString shortDescription() const override;
    QgsRasterLogicalAndAlgorithm *createInstance() const override SIP_FACTORY;
};

 
#endif // QGSALGORITHMRASTERLOGICALOP_H