qgsembeddedsymbolrenderer.h

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/***************************************************************************
    qgsembeddedsymbolrenderer.h
    ---------------------
    begin                : March 2021
    copyright            : (C) 2021 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 QGSEMBEDDEDSYMBOLRENDERER_H
#define QGSEMBEDDEDSYMBOLRENDERER_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgsrenderer.h"

class CORE_EXPORT QgsEmbeddedSymbolRenderer : public QgsFeatureRenderer
{
  public:

    QgsEmbeddedSymbolRenderer( QgsSymbol *defaultSymbol SIP_TRANSFER );
    ~QgsEmbeddedSymbolRenderer() override;
 
    QgsSymbol *symbolForFeature( const QgsFeature &feature, QgsRenderContext &context ) const override;
    QgsSymbol *originalSymbolForFeature( const QgsFeature &feature, QgsRenderContext &context ) const override;
    void startRender( QgsRenderContext &context, const QgsFields &fields ) override;
    bool renderFeature( const QgsFeature &feature, QgsRenderContext &context, int layer = -1, bool selected = false, bool drawVertexMarker = false ) SIP_THROW( QgsCsException ) override;
    void stopRender( QgsRenderContext &context ) override;
    QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
    bool usesEmbeddedSymbols() const override;
    QgsEmbeddedSymbolRenderer *clone() const override SIP_FACTORY;
    QgsFeatureRenderer::Capabilities capabilities() override;
    QDomElement save( QDomDocument &doc, const QgsReadWriteContext &context ) override;
    QgsSymbolList symbols( QgsRenderContext &context ) const override;

    QgsSymbol *defaultSymbol() const;

    void setDefaultSymbol( QgsSymbol *symbol SIP_TRANSFER );

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

    static QgsEmbeddedSymbolRenderer *convertFromRenderer( const QgsFeatureRenderer *renderer ) SIP_FACTORY;
 
  private:
#ifdef SIP_RUN
    QgsEmbeddedSymbolRenderer( const QgsEmbeddedSymbolRenderer & );
    QgsEmbeddedSymbolRenderer &operator=( const QgsEmbeddedSymbolRenderer & );
#endif
 
    std::unique_ptr<QgsSymbol> mDefaultSymbol;
 
};
 
 
#endif // QGSEMBEDDEDSYMBOLRENDERER_H