/usr/include/qgis/qgsnullsymbolrenderer.h is in libqgis-dev 2.18.17+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgsnullsymbolrenderer.h
---------------------
begin : November 2014
copyright : (C) 2014 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 QGSNULLSYMBOLRENDERER_H
#define QGSNULLSYMBOLRENDERER_H
#include "qgis.h"
#include "qgsrendererv2.h"
#include "qgssymbolv2.h"
/** \ingroup core
* \class QgsNullSymbolRenderer
* \brief Null symbol renderer. Renderer which draws no symbols for features by default, but allows for labeling
* and diagrams for the layer. Selected features will also be drawn with a default symbol.
* \note Added in version 2.16
*/
class CORE_EXPORT QgsNullSymbolRenderer : public QgsFeatureRendererV2
{
public:
QgsNullSymbolRenderer();
virtual ~QgsNullSymbolRenderer();
virtual QgsSymbolV2* symbolForFeature( QgsFeature& feature, QgsRenderContext& context ) override;
virtual QgsSymbolV2* originalSymbolForFeature( QgsFeature& feature, QgsRenderContext& context ) override;
virtual bool renderFeature( QgsFeature& feature, QgsRenderContext& context, int layer = -1, bool selected = false, bool drawVertexMarker = false ) override;
virtual void startRender( QgsRenderContext& context, const QgsFields& fields ) override;
virtual void stopRender( QgsRenderContext& context ) override;
virtual bool willRenderFeature( QgsFeature& feat, QgsRenderContext& context ) override;
virtual QList<QString> usedAttributes() override;
virtual QString dump() const override;
virtual QgsFeatureRendererV2* clone() const override;
virtual QgsSymbolV2List symbols( QgsRenderContext& context ) override;
/** Creates a null renderer from XML element.
* @param element DOM element
* @returns new null symbol renderer
*/
static QgsFeatureRendererV2* create( QDomElement& element );
virtual QDomElement save( QDomDocument& doc ) override;
/** Creates a QgsNullSymbolRenderer from an existing renderer.
* @param renderer renderer to convert from
* @returns a new renderer if the conversion was possible, otherwise nullptr.
*/
static QgsNullSymbolRenderer* convertFromRenderer( const QgsFeatureRendererV2 *renderer );
private:
//! Symbol to use for rendering selected features
QScopedPointer<QgsSymbolV2> mSymbol;
};
#endif // QGSNULLSYMBOLRENDERER_H
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