qgsprojectelevationproperties.h

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/***************************************************************************
                         qgsprojectelevationproperties.h
                         ---------------
    begin                : 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 QGSPROJECTELEVATIONPROPERTIES_H
#define QGSPROJECTELEVATIONPROPERTIES_H
 
#include <memory>
 
#include "qgis_core.h"
#include "qgsrange.h"
#include "qgsunittypes.h"
 
#include <QObject>
 
class QDomElement;
class QgsReadWriteContext;
class QDomDocument;
class QgsAbstractTerrainProvider;
class QgsProject;

class CORE_EXPORT QgsProjectElevationProperties : public QObject
{
    Q_OBJECT
 
  public:

    QgsProjectElevationProperties( QObject *parent SIP_TRANSFERTHIS = nullptr );
 
    ~QgsProjectElevationProperties() override;

    void reset();

    void resolveReferences( const QgsProject *project );

    bool readXml( const QDomElement &element, const QgsReadWriteContext &context );

    QDomElement writeXml( QDomDocument &document, const QgsReadWriteContext &context ) const;

    QgsAbstractTerrainProvider *terrainProvider();

    void setTerrainProvider( QgsAbstractTerrainProvider *provider SIP_TRANSFER );

    QgsDoubleRange elevationRange() const { return mElevationRange; }

    double elevationFilterRangeSize() const { return mElevationFilterRangeSize; }

    bool invertElevationFilter() const { return mInvertElevationFilter; }
 
  public slots:

    void setElevationRange( const QgsDoubleRange &range );

    void setElevationFilterRangeSize( double size );

    void setInvertElevationFilter( bool invert );
 
  signals:

    void changed();

    void elevationRangeChanged( const QgsDoubleRange &range );
 
  private:
 
    std::unique_ptr< QgsAbstractTerrainProvider > mTerrainProvider;
    QgsDoubleRange mElevationRange;
    double mElevationFilterRangeSize = -1;
    bool mInvertElevationFilter = false;
 
};
 
 
#endif // QGSPROJECTELEVATIONPROPERTIES_H