qgsalgorithmdissolve.h

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/***************************************************************************
                         qgsalgorithmdissolve.h
                         ---------------------
    begin                : April 2017
    copyright            : (C) 2017 by Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef QGSALGORITHMDISSOLVE_H
#define QGSALGORITHMDISSOLVE_H

#define SIP_NO_FILE

#include "qgis.h"
#include "qgsprocessingalgorithm.h"


class QgsCollectorAlgorithm : public QgsProcessingAlgorithm
{
  protected:

    QVariantMap processCollection( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback,
                                   const std::function<QgsGeometry( const QVector<QgsGeometry>& )> &collector, int maxQueueLength = 0 );
};

class QgsDissolveAlgorithm : public QgsCollectorAlgorithm
{

  public:

    QgsDissolveAlgorithm() = default;
    void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
    QString name() const override;
    QString displayName() const override;
    QStringList tags() const override;
    QString group() const override;
    QString groupId() const override;
    QString shortHelpString() const override;
    QgsDissolveAlgorithm *createInstance() const override SIP_FACTORY;

  protected:

    QVariantMap processAlgorithm( const QVariantMap &parameters,
                                  QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;

};

class QgsCollectAlgorithm : public QgsCollectorAlgorithm
{

  public:

    QgsCollectAlgorithm() = default;
    void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
    QString name() const override;
    QString displayName() const override;
    QStringList tags() const override;
    QString group() const override;
    QString groupId() const override;
    QString shortHelpString() const override;
    QgsCollectAlgorithm *createInstance() const override SIP_FACTORY;

  protected:

    QVariantMap processAlgorithm( const QVariantMap &parameters,
                                  QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;

};


#endif // QGSALGORITHMDISSOLVE_H