qgspoint3dbillboardmaterial.h

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/***************************************************************************
  qgspoint3dbillboardmaterial.h
  --------------------------------------
  Date                 : Jul 2019
  Copyright            : (C) 2019 by Ismail Sunni
  Email                : imajimatika 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 QGSPOINT3DBILLBOARDMATERIAL_H
#define QGSPOINT3DBILLBOARDMATERIAL_H
 
#include "qgis.h"
#include "qgis_3d.h"
#include "qgsmaterial.h"
 
#include <QObject>
#include <Qt3DRender/QParameter>
#include <Qt3DRender/QTexture>
 
#define SIP_NO_FILE
 
class QgsMarkerSymbol;
class Qgs3DRenderContext;

class _3D_EXPORT QgsPoint3DBillboardMaterial : public QgsMaterial
{
    Q_OBJECT
 
  public:
    enum class ExtraAttribute
    {
      Size = 1 << 1,
      TextureData = 1 << 2,
      PixelOffsets = 1 << 3,
      VerticalOffset = 1 << 4,
    };
    Q_DECLARE_FLAGS( ExtraAttributes, ExtraAttribute )
    Q_FLAG( ExtraAttributes )
 
    
    QgsPoint3DBillboardMaterial( ExtraAttributes attributes = ExtraAttributes(), Qgis::BillboardScaleMode scaleMode = Qgis::BillboardScaleMode::ViewIndependent );
    ~QgsPoint3DBillboardMaterial() override;

    void setSize( const QSizeF size );
    QSizeF size() const;

    void setVerticalOffset( float offset );

    void setViewportSize( const QSizeF size );
    QSizeF windowSize() const;

    void useDefaultSymbol( const Qgs3DRenderContext &context, bool selected = false );

    static QImage renderSymbolToImage( const QgsMarkerSymbol *markerSymbol, const Qgs3DRenderContext &context, bool selected = false );

    void setTexture2DFromSymbol( const QgsMarkerSymbol *markerSymbol, const Qgs3DRenderContext &context, bool selected = false );

    void setTexture2DFromImage( const QImage &image );
 
  private:
    void setTexture2DFromTextureImage( Qt3DRender::QAbstractTextureImage *textureImage );
 
    Qt3DRender::QParameter *mSize = nullptr;
    Qt3DRender::QParameter *mViewportSize = nullptr;
    Qt3DRender::QParameter *mTexture2D = nullptr;
    Qt3DRender::QParameter *mVerticalOffset = nullptr;
 
    Qgis::BillboardScaleMode mScaleMode = Qgis::BillboardScaleMode::ViewIndependent;
};
 
Q_DECLARE_OPERATORS_FOR_FLAGS( QgsPoint3DBillboardMaterial::ExtraAttributes )
 
 
#endif // QGSPOINT3DBILLBOARDMATERIAL_H