qgspointcloudattributebyramprenderer.h

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/***************************************************************************
                         qgspointcloudattributebyramprenderer.h
                         --------------------
    begin                : October 2020
    copyright            : (C) 2020 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 QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H
#define QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include "qgscolorrampshader.h"
#include "qgspointcloudrenderer.h"
 
#include <QString>
 
using namespace Qt::StringLiterals;
 
#ifndef SIP_RUN

class CORE_EXPORT QgsPointCloudAttributeByRampRendererPreparedData: public QgsPreparedPointCloudRendererData
{
  public:
 
    QSet< QString > usedAttributes() const override;
    bool prepareBlock( const QgsPointCloudBlock *block ) override;
    QColor pointColor( const QgsPointCloudBlock *block, int i, double z ) override SIP_SKIP;
 
    QString attributeName;
    QgsColorRampShader colorRampShader;
    int attributeOffset = 0;
    bool attributeIsX = false;
    bool attributeIsY = false;
    bool attributeIsZ = false;
    QgsPointCloudAttribute::DataType attributeType;
};
#endif
 

class CORE_EXPORT QgsPointCloudAttributeByRampRenderer : public QgsPointCloudRenderer
{
  public:

    QgsPointCloudAttributeByRampRenderer();
 
    QString type() const override;
    QgsPointCloudRenderer *clone() const override;
    void renderBlock( const QgsPointCloudBlock *block, QgsPointCloudRenderContext &context ) override;
    QDomElement save( QDomDocument &doc, const QgsReadWriteContext &context ) const override;
    QSet< QString > usedAttributes( const QgsPointCloudRenderContext &context ) const override;
    QList<QgsLayerTreeModelLegendNode *> createLegendNodes( QgsLayerTreeLayer *nodeLayer ) override SIP_FACTORY;
    std::unique_ptr< QgsPreparedPointCloudRendererData > prepare() override SIP_SKIP;

    static QgsPointCloudRenderer *create( QDomElement &element, const QgsReadWriteContext &context ) SIP_FACTORY;

    QString attribute() const;

    void setAttribute( const QString &attribute );

    QgsColorRampShader colorRampShader() const;

    void setColorRampShader( const QgsColorRampShader &shader );

    double minimum() const;

    void setMinimum( double minimum );

    double maximum() const;

    void setMaximum( double maximum );
 
  private:
 
    double mMin = 0;
    double mMax = 100;
 
    QString mAttribute = u"Intensity"_s;
    QgsColorRampShader mColorRampShader;
 
};
 
#endif // QGSPOINTCLOUDATTRIBUTEBYRAMPRENDERER_H