qgsgcppoint.h

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/***************************************************************************
     qgsgcppoint.h
     --------------------------------------
    Date                 : February 2022
    Copyright            : (C) 2022 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 QGSGCPPOINT_H
#define QGSGCPPOINT_H
 
#include "qgis_analysis.h"
#include "qgscoordinatereferencesystem.h"
 
class QgsCoordinateTransformContext;

class ANALYSIS_EXPORT QgsGcpPoint
{
  public:
    enum class PointType
    {
      Source,      
      Destination, 
    };

    QgsGcpPoint( const QgsPointXY &sourcePoint, const QgsPointXY &destinationPoint, const QgsCoordinateReferenceSystem &destinationPointCrs, bool enabled = true );

    QgsPointXY sourcePoint() const { return mSourcePoint; }

    void setSourcePoint( QgsPointXY point ) { mSourcePoint = point; }

    QgsPointXY destinationPoint() const { return mDestinationPoint; }

    void setDestinationPoint( QgsPointXY point ) { mDestinationPoint = point; }

    QgsCoordinateReferenceSystem destinationPointCrs() const;

    void setDestinationPointCrs( const QgsCoordinateReferenceSystem &crs );

    QgsPointXY transformedDestinationPoint( const QgsCoordinateReferenceSystem &targetCrs, const QgsCoordinateTransformContext &context ) const;

    bool isEnabled() const { return mEnabled; }

    void setEnabled( bool enabled ) { mEnabled = enabled; }
 
    // TODO c++20 - replace with = default
    bool operator==( const QgsGcpPoint &other ) const
    {
      return mEnabled == other.mEnabled && mSourcePoint == other.mSourcePoint && mDestinationPoint == other.mDestinationPoint && mDestinationCrs == other.mDestinationCrs;
    }
 
    bool operator!=( const QgsGcpPoint &other ) const { return !( *this == other ); }
 
  private:
    QgsPointXY mSourcePoint;
    QgsPointXY mDestinationPoint;
    QgsCoordinateReferenceSystem mDestinationCrs;
    bool mEnabled = true;
};
 
#endif //QGSGCPPOINT_H