qgslayoutmeasurementconverter.h

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/***************************************************************************
                         qgslayoutmeasurementconverter.h
                         -------------------------------
    begin                : June 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 QGSLAYOUTMEASUREMENTCONVERTER_H
#define QGSLAYOUTMEASUREMENTCONVERTER_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgslayoutmeasurement.h"
#include "qgslayoutpoint.h"
#include "qgslayoutsize.h"
 
#include <QPointF>
#include <QSizeF>

class CORE_EXPORT QgsLayoutMeasurementConverter
{
  public:
    QgsLayoutMeasurementConverter() = default;

    void setDpi( const double dpi ) { mDpi = dpi; }

    double dpi() const { return mDpi; }

    QgsLayoutMeasurement convert( QgsLayoutMeasurement measurement, Qgis::LayoutUnit targetUnits ) const;

    QgsLayoutSize convert( const QgsLayoutSize &size, Qgis::LayoutUnit targetUnits ) const;

    QgsLayoutPoint convert( const QgsLayoutPoint &point, Qgis::LayoutUnit targetUnits ) const;
 
  private:
    double mDpi = 300.0;
 
    double convertToMillimeters( QgsLayoutMeasurement measurement ) const;
    double convertToCentimeters( QgsLayoutMeasurement measurement ) const;
    double convertToMeters( QgsLayoutMeasurement measurement ) const;
    double convertToInches( QgsLayoutMeasurement measurement ) const;
    double convertToFeet( QgsLayoutMeasurement measurement ) const;
    double convertToPoints( QgsLayoutMeasurement measurement ) const;
    double convertToPicas( QgsLayoutMeasurement measurement ) const;
    double convertToPixels( QgsLayoutMeasurement measurement ) const;
};
 
#endif // QGSLAYOUTMEASUREMENTCONVERTER_H