qgscolorramptexture.h

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/***************************************************************************
                         qgscolorramptexture.h
                         -------------------------
    begin                : january 2020
    copyright            : (C) 2020 by Vincent Cloarec
    email                : vcloarec 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 QGSCOLORRAMPTEXTURE_H
#define QGSCOLORRAMPTEXTURE_H

 
#include "qgscolorrampshader.h"
 
#include <QByteArray>
#include <QUrl>
#include <QVector2D>
#include <QVector3D>
#include <QVector4D>
#include <Qt3DRender/QEffect>
#include <Qt3DRender/QGraphicsApiFilter>
#include <Qt3DRender/QParameter>
#include <Qt3DRender/QTexture>
 
#define SIP_NO_FILE
 
class QgsColorRampTextureGenerator : public Qt3DRender::QTextureImageDataGenerator
{
  public:
    QgsColorRampTextureGenerator( const QgsColorRampShader &colorRampShader, double verticalScale = 1 );
 
  public:
    Qt3DRender::QTextureImageDataPtr operator()() override;
 
    qintptr id() const override
    {
      return reinterpret_cast<qintptr>( &Qt3DCore::FunctorType<QgsColorRampTextureGenerator>::id );
    }
 
    bool operator==( const Qt3DRender::QTextureImageDataGenerator &other ) const override;
 
  private:
    QgsColorRampShader mColorRampShader;
    double mVerticalScale = 1;
};
 
 
class QgsColorRampTexture : public Qt3DRender::QAbstractTextureImage
{
    Q_OBJECT
 
  public:
    QgsColorRampTexture( const QgsColorRampShader &colorRampShader, double verticalScale = 1, Qt3DCore::QNode *parent = nullptr );
    // QAbstractTextureImage interface
  protected:
    Qt3DRender::QTextureImageDataGeneratorPtr dataGenerator() const override;
 
  private:
    QgsColorRampShader mColorRampShader;
    double mVerticalScale = 1;
};

 
#endif // QGSCOLORRAMPTEXTURE_H