qgslayoutreportcontext.h

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/***************************************************************************
                             qgslayoutreportcontext.h
                             -------------------
    begin                : July 2017
    copyright            : (C) 2017 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 QGSLAYOUTREPORTCONTEXT_H
#define QGSLAYOUTREPORTCONTEXT_H

#include "qgis_core.h"
#include "qgsfeature.h"
#include "qgsvectorlayer.h"
#include <QtGlobal>

class CORE_EXPORT QgsLayoutReportContext : public QObject
{

    Q_OBJECT

  public:

    QgsLayoutReportContext( QgsLayout *layout SIP_TRANSFERTHIS );

    void setFeature( const QgsFeature &feature );

    QgsFeature feature() const { return mFeature; }

    QgsGeometry currentGeometry( const QgsCoordinateReferenceSystem &crs = QgsCoordinateReferenceSystem() ) const;

    QgsVectorLayer *layer() const;

    void setLayer( QgsVectorLayer *layer );

    void setPredefinedScales( const QVector<qreal> &scales );

    QVector<qreal> predefinedScales() const { return mPredefinedScales; }

  signals:

    void layerChanged( QgsVectorLayer *layer );

    void changed();

  private:

    QgsLayout *mLayout = nullptr;

    QgsFeature mFeature;
    QPointer< QgsVectorLayer > mLayer;

    // projected geometry cache
    mutable QMap<long, QgsGeometry> mGeometryCache;

    //list of predefined scales
    QVector<qreal> mPredefinedScales;

    friend class QgsLayoutExporter;
    friend class TestQgsLayout;

};

#endif //QGSLAYOUTREPORTCONTEXT_H