qgsfillsymbollayer.h

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/***************************************************************************
 qgsfillsymbollayer.h
 ---------------------
 begin                : November 2009
 copyright            : (C) 2009 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 QGSFILLSYMBOLLAYER_H
#define QGSFILLSYMBOLLAYER_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgssymbollayer.h"
 
#define DEFAULT_SIMPLEFILL_COLOR QColor( 0, 0, 255 )
#define DEFAULT_SIMPLEFILL_STYLE Qt::SolidPattern
#define DEFAULT_SIMPLEFILL_BORDERCOLOR QColor( 35, 35, 35 )
#define DEFAULT_SIMPLEFILL_BORDERSTYLE Qt::SolidLine
#define DEFAULT_SIMPLEFILL_BORDERWIDTH Qgis::DEFAULT_LINE_WIDTH
#define DEFAULT_SIMPLEFILL_JOINSTYLE Qt::BevelJoin
 
#define INF 1E20
 
#include <QPen>
#include <QBrush>
 
class QgsMarkerSymbol;
class QgsLineSymbol;
class QgsPathResolver;

class CORE_EXPORT QgsSimpleFillSymbolLayer : public QgsFillSymbolLayer
{
  public:
    QgsSimpleFillSymbolLayer(
      const QColor &color = DEFAULT_SIMPLEFILL_COLOR,
      Qt::BrushStyle style = DEFAULT_SIMPLEFILL_STYLE,
      const QColor &strokeColor = DEFAULT_SIMPLEFILL_BORDERCOLOR,
      Qt::PenStyle strokeStyle = DEFAULT_SIMPLEFILL_BORDERSTYLE,
      double strokeWidth = DEFAULT_SIMPLEFILL_BORDERWIDTH,
      Qt::PenJoinStyle penJoinStyle = DEFAULT_SIMPLEFILL_JOINSTYLE
    );
 
    ~QgsSimpleFillSymbolLayer() override;
 
    // static stuff

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;
 
    // implemented from base classes
 
    QString layerType() const override;
    Qgis::SymbolLayerFlags flags() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsSimpleFillSymbolLayer *clone() const override SIP_FACTORY;
    Q_DECL_DEPRECATED void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const override SIP_DEPRECATED;
    bool toSld( QDomDocument &doc, QDomElement &element, QgsSldExportContext &context ) const override;
    QString ogrFeatureStyle( double mmScaleFactor, double mapUnitScaleFactor ) const override;
 
    Qt::BrushStyle brushStyle() const { return mBrushStyle; }
    void setBrushStyle( Qt::BrushStyle style ) { mBrushStyle = style; }
 
    QColor strokeColor() const override { return mStrokeColor; }
    void setStrokeColor( const QColor &strokeColor ) override { mStrokeColor = strokeColor; }
    QColor fillColor() const override { return color(); }
    void setFillColor( const QColor &color ) override { setColor( color ); }
 
    Qt::PenStyle strokeStyle() const { return mStrokeStyle; }
    void setStrokeStyle( Qt::PenStyle strokeStyle ) { mStrokeStyle = strokeStyle; }
 
    double strokeWidth() const { return mStrokeWidth; }
    void setStrokeWidth( double strokeWidth ) { mStrokeWidth = strokeWidth; }
 
    Qt::PenJoinStyle penJoinStyle() const { return mPenJoinStyle; }
    void setPenJoinStyle( Qt::PenJoinStyle style ) { mPenJoinStyle = style; }

    void setOffset( QPointF offset ) { mOffset = offset; }

    QPointF offset() const { return mOffset; }

    void setStrokeWidthUnit( Qgis::RenderUnit unit ) { mStrokeWidthUnit = unit; }

    Qgis::RenderUnit strokeWidthUnit() const { return mStrokeWidthUnit; }
 
    void setStrokeWidthMapUnitScale( const QgsMapUnitScale &scale ) { mStrokeWidthMapUnitScale = scale; }
    const QgsMapUnitScale &strokeWidthMapUnitScale() const { return mStrokeWidthMapUnitScale; }

    void setOffsetUnit( Qgis::RenderUnit unit ) { mOffsetUnit = unit; }

    Qgis::RenderUnit offsetUnit() const { return mOffsetUnit; }

    void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }

    const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
 
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
 
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
 
    double dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const override;
    QColor dxfColor( QgsSymbolRenderContext &context ) const override;
    double dxfAngle( QgsSymbolRenderContext &context ) const override;
 
    Qt::PenStyle dxfPenStyle() const override;
    QColor dxfBrushColor( QgsSymbolRenderContext &context ) const override;
    Qt::BrushStyle dxfBrushStyle() const override;
    QImage toTiledPatternImage() const override;
 
  protected:
    QBrush mBrush;
    QBrush mSelBrush;
    Qt::BrushStyle mBrushStyle;
    QColor mStrokeColor;
    Qt::PenStyle mStrokeStyle;
    double mStrokeWidth;
    Qgis::RenderUnit mStrokeWidthUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mStrokeWidthMapUnitScale;
    Qt::PenJoinStyle mPenJoinStyle;
    QPen mPen;
    QPen mSelPen;
 
    QPointF mOffset;
    Qgis::RenderUnit mOffsetUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetMapUnitScale;
 
  private:
    //helper functions for data defined symbology
    void applyDataDefinedSymbology( QgsSymbolRenderContext &context, QBrush &brush, QPen &pen, QPen &selPen );
};
 
class QgsColorRamp;

class CORE_EXPORT QgsGradientFillSymbolLayer : public QgsFillSymbolLayer
{
  public:
    QgsGradientFillSymbolLayer(
      const QColor &color = DEFAULT_SIMPLEFILL_COLOR,
      const QColor &color2 = Qt::white,
      Qgis::GradientColorSource gradientColorType = Qgis::GradientColorSource::SimpleTwoColor,
      Qgis::GradientType gradientType = Qgis::GradientType::Linear,
      Qgis::SymbolCoordinateReference coordinateMode = Qgis::SymbolCoordinateReference::Feature,
      Qgis::GradientSpread gradientSpread = Qgis::GradientSpread::Pad
    );
 
    ~QgsGradientFillSymbolLayer() override;
 
    // static stuff

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
 
    // implemented from base classes
 
    Qgis::SymbolLayerFlags flags() const override;
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsGradientFillSymbolLayer *clone() const override SIP_FACTORY;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
    bool canCauseArtifactsBetweenAdjacentTiles() const override;

    Qgis::GradientType gradientType() const { return mGradientType; }

    void setGradientType( Qgis::GradientType gradientType ) { mGradientType = gradientType; }

    Qgis::GradientColorSource gradientColorType() const { return mGradientColorType; }

    void setGradientColorType( Qgis::GradientColorSource gradientColorType ) { mGradientColorType = gradientColorType; }

    QgsColorRamp *colorRamp() { return mGradientRamp.get(); }

    void setColorRamp( QgsColorRamp *ramp SIP_TRANSFER );

    QColor color2() const { return mColor2; }

    void setColor2( const QColor &color2 ) { mColor2 = color2; }

    Qgis::SymbolCoordinateReference coordinateMode() const { return mCoordinateMode; }

    void setCoordinateMode( Qgis::SymbolCoordinateReference coordinateMode ) { mCoordinateMode = coordinateMode; }

    Qgis::GradientSpread gradientSpread() const { return mGradientSpread; }

    void setGradientSpread( Qgis::GradientSpread gradientSpread ) { mGradientSpread = gradientSpread; }

    void setReferencePoint1( QPointF referencePoint ) { mReferencePoint1 = referencePoint; }

    QPointF referencePoint1() const { return mReferencePoint1; }

    void setReferencePoint1IsCentroid( bool isCentroid ) { mReferencePoint1IsCentroid = isCentroid; }

    bool referencePoint1IsCentroid() const { return mReferencePoint1IsCentroid; }

    void setReferencePoint2( QPointF referencePoint ) { mReferencePoint2 = referencePoint; }

    QPointF referencePoint2() const { return mReferencePoint2; }

    void setReferencePoint2IsCentroid( bool isCentroid ) { mReferencePoint2IsCentroid = isCentroid; }
 

    bool referencePoint2IsCentroid() const { return mReferencePoint2IsCentroid; }

    void setOffset( QPointF offset ) { mOffset = offset; }

    QPointF offset() const { return mOffset; }

    void setOffsetUnit( Qgis::RenderUnit unit ) { mOffsetUnit = unit; }

    Qgis::RenderUnit offsetUnit() const { return mOffsetUnit; }

    void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }

    const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
 
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
 
  protected:
    QBrush mBrush;
    QBrush mSelBrush;
 
    Qgis::GradientColorSource mGradientColorType;
    QColor mColor2;
    std::unique_ptr<QgsColorRamp> mGradientRamp;
    Qgis::GradientType mGradientType;
    Qgis::SymbolCoordinateReference mCoordinateMode;
    Qgis::GradientSpread mGradientSpread;
 
    QPointF mReferencePoint1;
    bool mReferencePoint1IsCentroid = false;
    QPointF mReferencePoint2;
    bool mReferencePoint2IsCentroid = false;
 
    QPointF mOffset;
    Qgis::RenderUnit mOffsetUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetMapUnitScale;
 
  private:
    //helper functions for data defined symbology
    void applyDataDefinedSymbology( QgsSymbolRenderContext &context, const QPolygonF &points );

    void applyGradient(
      const QgsSymbolRenderContext &context,
      QBrush &brush,
      const QColor &color,
      const QColor &color2,
      Qgis::GradientColorSource gradientColorType,
      QgsColorRamp *gradientRamp,
      Qgis::GradientType gradientType,
      Qgis::SymbolCoordinateReference coordinateMode,
      Qgis::GradientSpread gradientSpread,
      QPointF referencePoint1,
      QPointF referencePoint2,
      double angle
    );

    QPointF rotateReferencePoint( QPointF refPoint, double angle );
};

class CORE_EXPORT QgsShapeburstFillSymbolLayer : public QgsFillSymbolLayer
{
  public:
    QgsShapeburstFillSymbolLayer(
      const QColor &color = DEFAULT_SIMPLEFILL_COLOR,
      const QColor &color2 = Qt::white,
      Qgis::GradientColorSource colorType = Qgis::GradientColorSource::SimpleTwoColor,
      int blurRadius = 0,
      bool useWholeShape = true,
      double maxDistance = 5
    );
 
    ~QgsShapeburstFillSymbolLayer() override;

    QgsShapeburstFillSymbolLayer( const QgsShapeburstFillSymbolLayer &other ) = delete;

    QgsShapeburstFillSymbolLayer &operator=( const QgsShapeburstFillSymbolLayer &other ) = delete;
 
    // static stuff

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
 
    // implemented from base classes
 
    QString layerType() const override;
    Qgis::SymbolLayerFlags flags() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsShapeburstFillSymbolLayer *clone() const override SIP_FACTORY;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
    bool canCauseArtifactsBetweenAdjacentTiles() const override;

    void setBlurRadius( int blurRadius ) { mBlurRadius = blurRadius; }

    int blurRadius() const { return mBlurRadius; }

    void setUseWholeShape( bool useWholeShape ) { mUseWholeShape = useWholeShape; }

    bool useWholeShape() const { return mUseWholeShape; }

    void setMaxDistance( double maxDistance ) { mMaxDistance = maxDistance; }

    double maxDistance() const { return mMaxDistance; }

    void setDistanceUnit( Qgis::RenderUnit unit ) { mDistanceUnit = unit; }

    Qgis::RenderUnit distanceUnit() const { return mDistanceUnit; }
 
    void setDistanceMapUnitScale( const QgsMapUnitScale &scale ) { mDistanceMapUnitScale = scale; }
    const QgsMapUnitScale &distanceMapUnitScale() const { return mDistanceMapUnitScale; }

    void setColorType( Qgis::GradientColorSource colorType ) { mColorType = colorType; }

    Qgis::GradientColorSource colorType() const { return mColorType; }

    void setColorRamp( QgsColorRamp *ramp SIP_TRANSFER );

    QgsColorRamp *colorRamp() { return mGradientRamp.get(); }

    void setColor2( const QColor &color2 ) { mColor2 = color2; }

    QColor color2() const { return mColor2; }

    void setIgnoreRings( bool ignoreRings ) { mIgnoreRings = ignoreRings; }

    bool ignoreRings() const { return mIgnoreRings; }

    void setOffset( QPointF offset ) { mOffset = offset; }

    QPointF offset() const { return mOffset; }

    void setOffsetUnit( Qgis::RenderUnit unit ) { mOffsetUnit = unit; }

    Qgis::RenderUnit offsetUnit() const { return mOffsetUnit; }
 
    void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }
    const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
 
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
 
  private:
    QBrush mBrush;
    QBrush mSelBrush;
 
    int mBlurRadius = 0;
 
    bool mUseWholeShape = true;
    double mMaxDistance = 5.0;
    Qgis::RenderUnit mDistanceUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDistanceMapUnitScale;
 
    Qgis::GradientColorSource mColorType = Qgis::GradientColorSource::SimpleTwoColor;
    QColor mColor2;
 
    bool mIgnoreRings = false;
 
    QPointF mOffset;
    Qgis::RenderUnit mOffsetUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetMapUnitScale;
 
    std::unique_ptr< QgsColorRamp > mGradientRamp;
 
    //helper functions for data defined symbology
    void applyDataDefinedSymbology( QgsSymbolRenderContext &context, QColor &color, QColor &color2, int &blurRadius, bool &useWholeShape, double &maxDistance, bool &ignoreRings );
 
    /* distance transform of a 1d function using squared distance */
    void distanceTransform1d( double *f, int n, int *v, double *z, double *d );
    /* distance transform of 2d function using squared distance */
    void distanceTransform2d( double *im, int width, int height, QgsRenderContext &context );
    /* distance transform of a binary QImage */
    double *distanceTransform( QImage *im, QgsRenderContext &context );
 
    /* fills a QImage with values from an array of doubles containing squared distance transform values */
    void dtArrayToQImage( double *array, QImage *im, QgsColorRamp *ramp, QgsRenderContext &context, bool useWholeShape = true, int maxPixelDistance = 0 );
 
#ifdef SIP_RUN
    QgsShapeburstFillSymbolLayer( const QgsShapeburstFillSymbolLayer &other );
#endif
};

class CORE_EXPORT QgsImageFillSymbolLayer : public QgsFillSymbolLayer SIP_ABSTRACT
{
  public:
    QgsImageFillSymbolLayer();
    ~QgsImageFillSymbolLayer() override;
 
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;

    void setStrokeWidthUnit( Qgis::RenderUnit unit ) { mStrokeWidthUnit = unit; }

    Qgis::RenderUnit strokeWidthUnit() const { return mStrokeWidthUnit; }

    void setStrokeWidthMapUnitScale( const QgsMapUnitScale &scale ) { mStrokeWidthMapUnitScale = scale; }

    const QgsMapUnitScale &strokeWidthMapUnitScale() const { return mStrokeWidthMapUnitScale; }

    void setCoordinateReference( Qgis::SymbolCoordinateReference coordinateReference ) { mCoordinateReference = coordinateReference; }

    Qgis::SymbolCoordinateReference coordinateReference() const { return mCoordinateReference; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
    double dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const override;
    Qt::PenStyle dxfPenStyle() const override;
    QVariantMap properties() const override;
 
  protected:
    QBrush mBrush;
    Qgis::SymbolCoordinateReference mCoordinateReference = Qgis::SymbolCoordinateReference::Feature;
    double mNextAngle = 0.0; // mAngle / data defined angle

    double mStrokeWidth = 0.0;
    Qgis::RenderUnit mStrokeWidthUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mStrokeWidthMapUnitScale;

    virtual void applyDataDefinedSettings( QgsSymbolRenderContext &context ) { Q_UNUSED( context ) }

    virtual bool applyBrushTransformFromContext( QgsSymbolRenderContext *context = nullptr ) const;
 
  private:
#ifdef SIP_RUN
    QgsImageFillSymbolLayer( const QgsImageFillSymbolLayer &other );
#endif
};

class CORE_EXPORT QgsRasterFillSymbolLayer : public QgsImageFillSymbolLayer
{
  public:
    QgsRasterFillSymbolLayer( const QString &imageFilePath = QString() );
 
    ~QgsRasterFillSymbolLayer() override;

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;

    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;

    static void resolvePaths( QVariantMap &properties, const QgsPathResolver &pathResolver, bool saving );
 
    // implemented from base classes
    QString layerType() const override;
    Qgis::SymbolLayerFlags flags() const override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsRasterFillSymbolLayer *clone() const override SIP_FACTORY;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
    bool usesMapUnits() const override;
    QColor color() const override;
    void setOutputUnit( Qgis::RenderUnit unit ) override;
 
    //override QgsImageFillSymbolLayer's support for sub symbols
    QgsSymbol *subSymbol() override { return nullptr; }
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;

    void setImageFilePath( const QString &imagePath );

    QString imageFilePath() const { return mImageFilePath; }

    void setCoordinateMode( Qgis::SymbolCoordinateReference mode );

    Qgis::SymbolCoordinateReference coordinateMode() const { return mCoordinateMode; }

    void setOpacity( double opacity );

    double opacity() const { return mOpacity; }

    void setOffset( QPointF offset ) { mOffset = offset; }

    QPointF offset() const { return mOffset; }

    void setOffsetUnit( const Qgis::RenderUnit unit ) { mOffsetUnit = unit; }

    Qgis::RenderUnit offsetUnit() const { return mOffsetUnit; }

    void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }

    const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }

    void setWidth( double width ) { mWidth = width; }

    double width() const { return mWidth; }

    void setHeight( double height ) { mHeight = height; }

    double height() const { return mHeight; }

    Q_DECL_DEPRECATED void setWidthUnit( Qgis::RenderUnit unit ) SIP_DEPRECATED { mSizeUnit = unit; }

    void setSizeUnit( Qgis::RenderUnit unit ) { mSizeUnit = unit; }

    Q_DECL_DEPRECATED Qgis::RenderUnit widthUnit() const SIP_DEPRECATED { return mSizeUnit; }

    Qgis::RenderUnit sizeUnit() const { return mSizeUnit; }

    Q_DECL_DEPRECATED void setWidthMapUnitScale( const QgsMapUnitScale &scale ) SIP_DEPRECATED { mSizeMapUnitScale = scale; }

    void setSizeMapUnitScale( const QgsMapUnitScale &scale ) { mSizeMapUnitScale = scale; }

    Q_DECL_DEPRECATED const QgsMapUnitScale &widthMapUnitScale() const SIP_DEPRECATED { return mSizeMapUnitScale; }

    const QgsMapUnitScale &sizeMapUnitScale() const { return mSizeMapUnitScale; }
 
  protected:
    void applyDataDefinedSettings( QgsSymbolRenderContext &context ) override;
    bool applyBrushTransformFromContext( QgsSymbolRenderContext *context = nullptr ) const override;
 
  private:
    QString mImageFilePath;
    Qgis::SymbolCoordinateReference mCoordinateMode = Qgis::SymbolCoordinateReference::Feature;
    double mOpacity = 1.0;
 
    QPointF mOffset;
    Qgis::RenderUnit mOffsetUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetMapUnitScale;
 
    double mWidth = 0.0;
    Qgis::RenderUnit mSizeUnit = Qgis::RenderUnit::Pixels;
    QgsMapUnitScale mSizeMapUnitScale;
 
    double mHeight = 0.0;

    void applyPattern( QBrush &brush, const QString &imageFilePath, double width, double height, double opacity, const QgsSymbolRenderContext &context );
};

class CORE_EXPORT QgsSVGFillSymbolLayer : public QgsImageFillSymbolLayer
{
  public:
    QgsSVGFillSymbolLayer( const QString &svgFilePath, double width = 20, double rotation = 0.0 );

    QgsSVGFillSymbolLayer( const QByteArray &svgData, double width = 20, double rotation = 0.0 );
 
    ~QgsSVGFillSymbolLayer() override;

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;

    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;

    static void resolvePaths( QVariantMap &properties, const QgsPathResolver &pathResolver, bool saving );
 
    // implemented from base classes
 
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsSVGFillSymbolLayer *clone() const override SIP_FACTORY;
    Q_DECL_DEPRECATED void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const override SIP_DEPRECATED;
    bool toSld( QDomDocument &doc, QDomElement &element, QgsSldExportContext &context ) const override;
    bool usesMapUnits() const override;
    QgsSymbol *subSymbol() override;
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
    QColor dxfColor( QgsSymbolRenderContext &context ) const override;
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool hasDataDefinedProperties() const override;

    void setSvgFilePath( const QString &svgPath );

    QString svgFilePath() const { return mSvgFilePath; }

    void setPatternWidth( double width ) { mPatternWidth = width; }

    double patternWidth() const { return mPatternWidth; }

    void setSvgFillColor( const QColor &c ) { setColor( c ); }

    QColor svgFillColor() const { return color(); }

    void setSvgStrokeColor( const QColor &c ) { mSvgStrokeColor = c; }

    QColor svgStrokeColor() const { return mSvgStrokeColor; }

    void setSvgStrokeWidth( double w ) { mSvgStrokeWidth = w; }

    double svgStrokeWidth() const { return mSvgStrokeWidth; }

    void setPatternWidthUnit( Qgis::RenderUnit unit ) { mPatternWidthUnit = unit; }

    Qgis::RenderUnit patternWidthUnit() const { return mPatternWidthUnit; }

    void setPatternWidthMapUnitScale( const QgsMapUnitScale &scale ) { mPatternWidthMapUnitScale = scale; }

    const QgsMapUnitScale &patternWidthMapUnitScale() const { return mPatternWidthMapUnitScale; }

    void setSvgStrokeWidthUnit( Qgis::RenderUnit unit ) { mSvgStrokeWidthUnit = unit; }

    Qgis::RenderUnit svgStrokeWidthUnit() const { return mSvgStrokeWidthUnit; }

    void setSvgStrokeWidthMapUnitScale( const QgsMapUnitScale &scale ) { mSvgStrokeWidthMapUnitScale = scale; }

    const QgsMapUnitScale &svgStrokeWidthMapUnitScale() const { return mSvgStrokeWidthMapUnitScale; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
 
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;

    QMap<QString, QgsProperty> parameters() const { return mParameters; }

    void setParameters( const QMap<QString, QgsProperty> &parameters );
 
  protected:
    void applyDataDefinedSettings( QgsSymbolRenderContext &context ) override;
 
  private:
    double mPatternWidth = 20;
    Qgis::RenderUnit mPatternWidthUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mPatternWidthMapUnitScale;
    QMap<QString, QgsProperty> mParameters;

    QByteArray mSvgData;
    QString mSvgFilePath;
    QRectF mSvgViewBox;
 
    //param(fill), param(stroke), param(stroke-width) are going
    //to be replaced in memory
    QColor mSvgStrokeColor = QColor( 35, 35, 35 );
    double mSvgStrokeWidth = 0.2;
    Qgis::RenderUnit mSvgStrokeWidthUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mSvgStrokeWidthMapUnitScale;

    std::unique_ptr< QgsLineSymbol > mStroke;

    void storeViewBox();
    void setDefaultSvgParams(); //fills mSvgFillColor, mSvgStrokeColor, mSvgStrokeWidth with default values for mSvgFilePath

    void applyPattern(
      QBrush &brush,
      const QString &svgFilePath,
      double patternWidth,
      Qgis::RenderUnit patternWidthUnit,
      const QColor &svgFillColor,
      const QColor &svgStrokeColor,
      double svgStrokeWidth,
      Qgis::RenderUnit svgStrokeWidthUnit,
      const QgsSymbolRenderContext &context,
      const QgsMapUnitScale &patternWidthMapUnitScale,
      const QgsMapUnitScale &svgStrokeWidthMapUnitScale,
      const QgsStringMap svgParameters
    );
};

class CORE_EXPORT QgsLinePatternFillSymbolLayer : public QgsImageFillSymbolLayer
{
  public:
    QgsLinePatternFillSymbolLayer();
    ~QgsLinePatternFillSymbolLayer() override;

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;

    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;
 
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsLinePatternFillSymbolLayer *clone() const override SIP_FACTORY;
    Q_DECL_DEPRECATED void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const override SIP_DEPRECATED;
    bool toSld( QDomDocument &doc, QDomElement &element, QgsSldExportContext &context ) const override;
    QImage toTiledPatternImage() const override;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
 
    QString ogrFeatureStyleWidth( double widthScaleFactor ) const;

    void setLineAngle( double a ) { mLineAngle = a; }

    double lineAngle() const { return mLineAngle; }

    void setDistance( double d ) { mDistance = d; }

    double distance() const { return mDistance; }

    void setLineWidth( double w );

    double lineWidth() const { return mLineWidth; }
 
    void setColor( const QColor &c ) override;
    QColor color() const override;

    void setOffset( double offset ) { mOffset = offset; }

    double offset() const { return mOffset; }

    void setDistanceUnit( Qgis::RenderUnit unit ) { mDistanceUnit = unit; }

    Qgis::RenderUnit distanceUnit() const { return mDistanceUnit; }

    void setDistanceMapUnitScale( const QgsMapUnitScale &scale ) { mDistanceMapUnitScale = scale; }

    const QgsMapUnitScale &distanceMapUnitScale() const { return mDistanceMapUnitScale; }

    void setLineWidthUnit( Qgis::RenderUnit unit ) { mLineWidthUnit = unit; }

    Qgis::RenderUnit lineWidthUnit() const { return mLineWidthUnit; }

    void setLineWidthMapUnitScale( const QgsMapUnitScale &scale ) { mLineWidthMapUnitScale = scale; }

    const QgsMapUnitScale &lineWidthMapUnitScale() const { return mLineWidthMapUnitScale; }

    void setOffsetUnit( Qgis::RenderUnit unit ) { mOffsetUnit = unit; }

    Qgis::RenderUnit offsetUnit() const { return mOffsetUnit; }

    void setOffsetMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetMapUnitScale = scale; }

    const QgsMapUnitScale &offsetMapUnitScale() const { return mOffsetMapUnitScale; }

    Qgis::LineClipMode clipMode() const { return mClipMode; }

    void setClipMode( Qgis::LineClipMode mode ) { mClipMode = mode; }
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
    QgsSymbol *subSymbol() override;
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool hasDataDefinedProperties() const override;
    void startFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
    void stopFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
 
  protected:
    void applyDataDefinedSettings( QgsSymbolRenderContext &context ) override;
 
  private:
    double mDistance = 5.0;
    Qgis::RenderUnit mDistanceUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDistanceMapUnitScale;
    double mLineWidth = 0;
    Qgis::RenderUnit mLineWidthUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mLineWidthMapUnitScale;
    double mLineAngle = 45.0;
    double mOffset = 0.0;
    Qgis::RenderUnit mOffsetUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetMapUnitScale;
 
    bool mRenderUsingLines = false;
 
#ifdef SIP_RUN
    QgsLinePatternFillSymbolLayer( const QgsLinePatternFillSymbolLayer &other );
#endif

    bool applyPattern( const QgsSymbolRenderContext &context, QBrush &brush, double lineAngle, double distance );

    std::unique_ptr< QgsLineSymbol > mFillLineSymbol;
    bool mFillLineSymbolRenderStarted = false;
 
    Qgis::LineClipMode mClipMode = Qgis::LineClipMode::ClipPainterOnly;
};

class CORE_EXPORT QgsPointPatternFillSymbolLayer : public QgsImageFillSymbolLayer
{
  public:
    QgsPointPatternFillSymbolLayer();
    ~QgsPointPatternFillSymbolLayer() override;

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;
 
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void startFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
    void stopFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsPointPatternFillSymbolLayer *clone() const override SIP_FACTORY;
    Q_DECL_DEPRECATED void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const override SIP_DEPRECATED;
    bool toSld( QDomDocument &doc, QDomElement &element, QgsSldExportContext &context ) const override;
    QImage toTiledPatternImage() const override;
    double estimateMaxBleed( const QgsRenderContext &context ) const override;
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
    QgsSymbol *subSymbol() override;
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool hasDataDefinedProperties() const override;
    void setColor( const QColor &c ) override;
    QColor color() const override;

    double distanceX() const { return mDistanceX; }

    void setDistanceX( double d ) { mDistanceX = d; }

    void setDistanceXUnit( Qgis::RenderUnit unit ) { mDistanceXUnit = unit; }

    Qgis::RenderUnit distanceXUnit() const { return mDistanceXUnit; }

    void setDistanceXMapUnitScale( const QgsMapUnitScale &scale ) { mDistanceXMapUnitScale = scale; }

    const QgsMapUnitScale &distanceXMapUnitScale() const { return mDistanceXMapUnitScale; }

    double distanceY() const { return mDistanceY; }

    void setDistanceY( double d ) { mDistanceY = d; }

    void setDistanceYUnit( Qgis::RenderUnit unit ) { mDistanceYUnit = unit; }

    Qgis::RenderUnit distanceYUnit() const { return mDistanceYUnit; }

    void setDistanceYMapUnitScale( const QgsMapUnitScale &scale ) { mDistanceYMapUnitScale = scale; }

    const QgsMapUnitScale &distanceYMapUnitScale() const { return mDistanceYMapUnitScale; }

    double displacementX() const { return mDisplacementX; }

    void setDisplacementX( double d ) { mDisplacementX = d; }

    void setDisplacementXUnit( Qgis::RenderUnit unit ) { mDisplacementXUnit = unit; }

    Qgis::RenderUnit displacementXUnit() const { return mDisplacementXUnit; }

    void setDisplacementXMapUnitScale( const QgsMapUnitScale &scale ) { mDisplacementXMapUnitScale = scale; }

    const QgsMapUnitScale &displacementXMapUnitScale() const { return mDisplacementXMapUnitScale; }

    double displacementY() const { return mDisplacementY; }

    void setDisplacementY( double d ) { mDisplacementY = d; }

    void setDisplacementYUnit( Qgis::RenderUnit unit ) { mDisplacementYUnit = unit; }

    Qgis::RenderUnit displacementYUnit() const { return mDisplacementYUnit; }

    void setDisplacementYMapUnitScale( const QgsMapUnitScale &scale ) { mDisplacementYMapUnitScale = scale; }

    const QgsMapUnitScale &displacementYMapUnitScale() const { return mDisplacementYMapUnitScale; }

    void setOffsetX( double offset ) { mOffsetX = offset; }

    double offsetX() const { return mOffsetX; }

    void setOffsetY( double offset ) { mOffsetY = offset; }

    double offsetY() const { return mOffsetY; }

    void setOffsetXUnit( Qgis::RenderUnit unit ) { mOffsetXUnit = unit; }

    Qgis::RenderUnit offsetXUnit() const { return mOffsetXUnit; }

    void setOffsetXMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetXMapUnitScale = scale; }

    const QgsMapUnitScale &offsetXMapUnitScale() const { return mOffsetXMapUnitScale; }

    void setOffsetYUnit( Qgis::RenderUnit unit ) { mOffsetYUnit = unit; }

    Qgis::RenderUnit offsetYUnit() const { return mOffsetYUnit; }

    void setOffsetYMapUnitScale( const QgsMapUnitScale &scale ) { mOffsetYMapUnitScale = scale; }

    const QgsMapUnitScale &offsetYMapUnitScale() const { return mOffsetYMapUnitScale; }

    Qgis::MarkerClipMode clipMode() const { return mClipMode; }

    void setClipMode( Qgis::MarkerClipMode mode ) { mClipMode = mode; }

    void setMaximumRandomDeviationX( double deviation ) { mRandomDeviationX = deviation; }

    double maximumRandomDeviationX() const { return mRandomDeviationX; }

    void setMaximumRandomDeviationY( double deviation ) { mRandomDeviationY = deviation; }

    double maximumRandomDeviationY() const { return mRandomDeviationY; }

    void setRandomDeviationXUnit( Qgis::RenderUnit unit ) { mRandomDeviationXUnit = unit; }

    Qgis::RenderUnit randomDeviationXUnit() const { return mRandomDeviationXUnit; }

    void setRandomDeviationYUnit( Qgis::RenderUnit unit ) { mRandomDeviationYUnit = unit; }

    Qgis::RenderUnit randomDeviationYUnit() const { return mRandomDeviationYUnit; }

    const QgsMapUnitScale &randomDeviationXMapUnitScale() const { return mRandomDeviationXMapUnitScale; }

    const QgsMapUnitScale &randomDeviationYMapUnitScale() const { return mRandomDeviationYMapUnitScale; }

    void setRandomDeviationXMapUnitScale( const QgsMapUnitScale &scale ) { mRandomDeviationXMapUnitScale = scale; }

    void setRandomDeviationYMapUnitScale( const QgsMapUnitScale &scale ) { mRandomDeviationYMapUnitScale = scale; }

    unsigned long seed() const { return mSeed; }

    void setSeed( unsigned long seed ) { mSeed = seed; }
 
  protected:
    std::unique_ptr< QgsMarkerSymbol > mMarkerSymbol;
    bool mMarkerSymbolRenderStarted = false;
    double mDistanceX = 15;
    Qgis::RenderUnit mDistanceXUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDistanceXMapUnitScale;
    double mDistanceY = 15;
    Qgis::RenderUnit mDistanceYUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDistanceYMapUnitScale;
    double mDisplacementX = 0;
    Qgis::RenderUnit mDisplacementXUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDisplacementXMapUnitScale;
    double mDisplacementY = 0;
    Qgis::RenderUnit mDisplacementYUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDisplacementYMapUnitScale;
    double mOffsetX = 0;
    Qgis::RenderUnit mOffsetXUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetXMapUnitScale;
    double mOffsetY = 0;
    Qgis::RenderUnit mOffsetYUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mOffsetYMapUnitScale;
 
    double mRandomDeviationX = 0;
    Qgis::RenderUnit mRandomDeviationXUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mRandomDeviationXMapUnitScale;
    double mRandomDeviationY = 0;
    Qgis::RenderUnit mRandomDeviationYUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mRandomDeviationYMapUnitScale;
    unsigned long mSeed = 0;
 
    void applyDataDefinedSettings( QgsSymbolRenderContext &context ) override;
 
  private:
#ifdef SIP_RUN
    QgsPointPatternFillSymbolLayer( const QgsPointPatternFillSymbolLayer &other );
#endif
 
    bool applyPattern( const QgsSymbolRenderContext &context, QBrush &brush, double distanceX, double distanceY, double displacementX, double displacementY, double offsetX, double offsetY );
 
    Qgis::MarkerClipMode mClipMode = Qgis::MarkerClipMode::Shape;
 
    bool mRenderUsingMarkers = false;
};

class CORE_EXPORT QgsRandomMarkerFillSymbolLayer : public QgsFillSymbolLayer
{
  public:
    QgsRandomMarkerFillSymbolLayer( int pointCount = 10, Qgis::PointCountMethod method = Qgis::PointCountMethod::Absolute, double densityArea = 250.0, unsigned long seed = 0 );
 
    ~QgsRandomMarkerFillSymbolLayer() override;

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
 
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsRandomMarkerFillSymbolLayer *clone() const override SIP_FACTORY;
    bool canCauseArtifactsBetweenAdjacentTiles() const override;
    bool rendersIdenticallyTo( const QgsSymbolLayer *other ) const override;
 
    void setColor( const QColor &color ) override;
    QColor color() const override;
 
    QgsSymbol *subSymbol() override;
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) final;
 
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
 
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
 
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool hasDataDefinedProperties() const override;

    int pointCount() const;

    void setPointCount( int count );

    unsigned long seed() const;

    void setSeed( unsigned long seed );

    bool clipPoints() const;

    void setClipPoints( bool clipped );

    Qgis::PointCountMethod countMethod() const;

    void setCountMethod( Qgis::PointCountMethod method );

    double densityArea() const;

    void setDensityArea( double area );

    void setDensityAreaUnit( Qgis::RenderUnit unit ) { mDensityAreaUnit = unit; }

    Qgis::RenderUnit densityAreaUnit() const { return mDensityAreaUnit; }

    void setDensityAreaUnitScale( const QgsMapUnitScale &scale ) { mDensityAreaUnitScale = scale; }

    const QgsMapUnitScale &densityAreaUnitScale() const { return mDensityAreaUnitScale; }
 
    void startFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
    void stopFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
 
  private:
#ifdef SIP_RUN
    QgsRandomMarkerFillSymbolLayer( const QgsRandomMarkerFillSymbolLayer &other );
#endif
 
    struct Part
    {
        QPolygonF exterior;
        QVector<QPolygonF> rings;
    };
 
    QVector< Part > mCurrentParts;
 
    void render( QgsRenderContext &context, const QVector< Part > &parts, const QgsFeature &feature, bool selected );
 
    std::unique_ptr< QgsMarkerSymbol > mMarker;
    Qgis::PointCountMethod mCountMethod = Qgis::PointCountMethod::Absolute;
    int mPointCount = 10;
    double mDensityArea = 250.0;
    Qgis::RenderUnit mDensityAreaUnit = Qgis::RenderUnit::Millimeters;
    QgsMapUnitScale mDensityAreaUnitScale;
    unsigned long mSeed = 0;
    bool mClipPoints = false;
 
    bool mRenderingFeature = false;
    double mFeatureSymbolOpacity = 1;
};
 

class CORE_EXPORT QgsCentroidFillSymbolLayer : public QgsFillSymbolLayer
{
  public:
    QgsCentroidFillSymbolLayer();
    ~QgsCentroidFillSymbolLayer() override;
 
    // static stuff

    static QgsSymbolLayer *create( const QVariantMap &properties = QVariantMap() ) SIP_FACTORY;
    static QgsSymbolLayer *createFromSld( QDomElement &element ) SIP_FACTORY;
 
    // implemented from base classes
 
    QString layerType() const override;
    void startRender( QgsSymbolRenderContext &context ) override;
    void stopRender( QgsSymbolRenderContext &context ) override;
    void renderPolygon( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context ) override;
    QVariantMap properties() const override;
    QgsCentroidFillSymbolLayer *clone() const override SIP_FACTORY;
    Q_DECL_DEPRECATED void toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const override SIP_DEPRECATED;
    bool toSld( QDomDocument &doc, QDomElement &element, QgsSldExportContext &context ) const override;
    void setColor( const QColor &color ) override;
    QColor color() const override;
    QgsSymbol *subSymbol() override;
    bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) final;
    void setOutputUnit( Qgis::RenderUnit unit ) override;
    Qgis::RenderUnit outputUnit() const override;
    bool usesMapUnits() const override;
    void setMapUnitScale( const QgsMapUnitScale &scale ) override;
    QgsMapUnitScale mapUnitScale() const override;
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool hasDataDefinedProperties() const override;
    bool canCauseArtifactsBetweenAdjacentTiles() const override;
 
    void setPointOnSurface( bool pointOnSurface ) { mPointOnSurface = pointOnSurface; }
    bool pointOnSurface() const { return mPointOnSurface; }

    void setPointOnAllParts( bool pointOnAllParts ) { mPointOnAllParts = pointOnAllParts; }

    bool pointOnAllParts() const { return mPointOnAllParts; }

    bool clipPoints() const { return mClipPoints; }

    void setClipPoints( bool clipPoints ) { mClipPoints = clipPoints; }

    bool clipOnCurrentPartOnly() const { return mClipOnCurrentPartOnly; }

    void setClipOnCurrentPartOnly( bool clipOnCurrentPartOnly ) { mClipOnCurrentPartOnly = clipOnCurrentPartOnly; }
 
    void startFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
    void stopFeatureRender( const QgsFeature &feature, QgsRenderContext &context ) override;
 
  protected:
    std::unique_ptr< QgsMarkerSymbol > mMarker;
    bool mPointOnSurface = false;
    bool mPointOnAllParts = true;
    bool mClipPoints = false;
    bool mClipOnCurrentPartOnly = false;
 
    bool mRenderingFeature = false;
    double mFeatureSymbolOpacity = 1;
    bool mUseSelectedColor = false;
 
  private:
#ifdef SIP_RUN
    QgsCentroidFillSymbolLayer( const QgsCentroidFillSymbolLayer &other );
#endif
    struct Part
    {
        QPolygonF exterior;
        QVector<QPolygonF> rings;
    };
 
    void render( QgsRenderContext &context, const QVector<Part> &parts, const QgsFeature &feature, bool selected );
    QVector<Part> mCurrentParts;
};
 
#endif