qgspointlightsettings.h

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/***************************************************************************
  qgspointlightsettings.h
  --------------------------------------
  Date                 : November 2018
  Copyright            : (C) 2018 by Martin Dobias
  Email                : wonder dot sk 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 QGSPOINTLIGHTSETTINGS_H
#define QGSPOINTLIGHTSETTINGS_H
 
#include "qgis_3d.h"
#include "qgslightsource.h"
#include "qgsvector3d.h"
 
#include <QColor>
 
class QDomDocument;
class QDomElement;

class _3D_EXPORT QgsPointLightSettings : public QgsLightSource
{
  public:
    QgsPointLightSettings() = default;
 
    Qgis::LightSourceType type() const override;
    QgsPointLightSettings *clone() const override SIP_FACTORY;
    Qt3DCore::QEntity *createEntity( const Qgs3DMapSettings &map, Qt3DCore::QEntity *parent ) const override SIP_SKIP;
    QDomElement writeXml( QDomDocument &doc, const QgsReadWriteContext &context = QgsReadWriteContext() ) const override;
    void readXml( const QDomElement &elem, const QgsReadWriteContext &context = QgsReadWriteContext() ) override;

    QgsVector3D position() const { return mPosition; }
    void setPosition( const QgsVector3D &pos ) { mPosition = pos; }

    QColor color() const { return mColor; }
    void setColor( const QColor &color ) { mColor = color; }

    float intensity() const { return mIntensity; }
    void setIntensity( float intensity ) { mIntensity = intensity; }

    float constantAttenuation() const { return mConstantAttenuation; }
    void setConstantAttenuation( float value ) { mConstantAttenuation = value; }

    float linearAttenuation() const { return mLinearAttenuation; }
    void setLinearAttenuation( float value ) { mLinearAttenuation = value; }

    float quadraticAttenuation() const { return mQuadraticAttenuation; }
    void setQuadraticAttenuation( float value ) { mQuadraticAttenuation = value; }
 
    // TODO c++20 - replace with = default
    bool operator==( const QgsPointLightSettings &other ) const;
 
  private:
    QgsVector3D mPosition { 0, 0, 0 };
    QColor mColor = Qt::white;
    float mIntensity = 1.0;
    float mConstantAttenuation = 1.0f;
    float mLinearAttenuation = 0.0f;
    float mQuadraticAttenuation = 0.0f;
};
 
#endif // QGSPOINTLIGHTSETTINGS_H