qgsunittypes.h

Go to the documentation of this file.

/***************************************************************************
                         qgsunittypes.h
                         --------------
    begin                : February 2016
    copyright            : (C) 2016 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 QGSUNITTYPES_H
#define QGSUNITTYPES_H
 
#include "qgis_core.h"
#include "qgis_sip.h"
#include <QObject>
 
/***************************************************************************
 * This class is considered CRITICAL and any change MUST be accompanied with
 * full unit tests in test_qgsunittypes.py.
 * See details in QEP #17
 ****************************************************************************/
 
class CORE_EXPORT QgsUnitTypes
{
    Q_GADGET
 
  public:
    enum SystemOfMeasurement
    {
      UnknownSystem = 0, 
      MetricSystem, 
      ImperialSystem, 
      USCSSystem 
    };
    Q_ENUM( SystemOfMeasurement )
 
    
    enum UnitType
    {
      TypeDistance = 0, 
      TypeArea, 
      TypeVolume, 
      TypeUnknown, 
      TypeTemporal, 
    };
 
    enum DistanceUnit
    {
      DistanceMeters = 0, 
      DistanceKilometers, 
      DistanceFeet, 
      DistanceNauticalMiles, 
      DistanceYards, 
      DistanceMiles, 
      DistanceDegrees, 
      DistanceCentimeters, 
      DistanceMillimeters, 
      DistanceUnknownUnit, 
    };
    Q_ENUM( DistanceUnit )
 
    
    enum DistanceUnitType
    {
      Standard = 0, 
      Geographic,   
      UnknownType,  
    };
 
    enum AreaUnit
    {
      AreaSquareMeters = 0, 
      AreaSquareKilometers, 
      AreaSquareFeet, 
      AreaSquareYards, 
      AreaSquareMiles, 
      AreaHectares, 
      AreaAcres, 
      AreaSquareNauticalMiles, 
      AreaSquareDegrees, 
      AreaSquareCentimeters, 
      AreaSquareMillimeters, 
      AreaUnknownUnit, 
    };
    Q_ENUM( AreaUnit )
 
    
    enum VolumeUnit
    {
      VolumeCubicMeters = 0, 
      VolumeCubicFeet, 
      VolumeCubicYards, 
      VolumeBarrel, 
      VolumeCubicDecimeter, 
      VolumeLiters, 
      VolumeGallonUS, 
      VolumeCubicInch, 
      VolumeCubicCentimeter, 
      VolumeCubicDegrees, 
      VolumeUnknownUnit, 
    };
    Q_ENUM( VolumeUnit )
 
    
    enum AngleUnit
    {
      AngleDegrees = 0, 
      AngleRadians, 
      AngleGon, 
      AngleMinutesOfArc, 
      AngleSecondsOfArc, 
      AngleTurn, 
      AngleMilliradiansSI, 
      AngleMilNATO, 
      AngleUnknownUnit, 
    };
    Q_ENUM( AngleUnit )
 
    
    enum TemporalUnit
    {
      TemporalMilliseconds, 
      TemporalSeconds, 
      TemporalMinutes, 
      TemporalHours, 
      TemporalDays, 
      TemporalWeeks, 
      TemporalMonths,  
      TemporalYears, 
      TemporalDecades, 
      TemporalCenturies, 
      TemporalUnknownUnit 
    };
    Q_ENUM( TemporalUnit )
 
    
    enum RenderUnit
    {
      RenderMillimeters = 0, 
      RenderMapUnits, 
      RenderPixels, 
      RenderPercentage, 
      RenderPoints, 
      RenderInches, 
      RenderUnknownUnit, 
      RenderMetersInMapUnits, 
    };
    Q_ENUM( RenderUnit )
 
    
    enum LayoutUnit
    {
      LayoutMillimeters = 0, 
      LayoutCentimeters, 
      LayoutMeters, 
      LayoutInches, 
      LayoutFeet, 
      LayoutPoints, 
      LayoutPicas, 
      LayoutPixels 
    };
    Q_ENUM( LayoutUnit )
 
    
    enum LayoutUnitType
    {
      LayoutPaperUnits = 0, 
      LayoutScreenUnits 
    };
 
    struct DistanceValue
    {
 
      double value;
 
      QgsUnitTypes::DistanceUnit unit;
    };
 
    struct AreaValue
    {
 
      double value;
 
      QgsUnitTypes::AreaUnit unit;
    };
 
    typedef QList<QgsUnitTypes::RenderUnit> RenderUnitList;
 
    Q_INVOKABLE static QString encodeUnitType( QgsUnitTypes::UnitType type );
 
    Q_INVOKABLE static QgsUnitTypes::UnitType decodeUnitType( const QString &string, bool *ok SIP_OUT = nullptr );
 
 
    // DISTANCE UNITS
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnitType unitType( QgsUnitTypes::DistanceUnit unit );
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::DistanceUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnit decodeDistanceUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static QString toString( QgsUnitTypes::DistanceUnit unit );
 
    Q_INVOKABLE static QString toAbbreviatedString( QgsUnitTypes::DistanceUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnit stringToDistanceUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static double fromUnitToUnitFactor( QgsUnitTypes::DistanceUnit fromUnit, QgsUnitTypes::DistanceUnit toUnit );
 
    // AREAL UNITS
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnitType unitType( QgsUnitTypes::AreaUnit unit );
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::AreaUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::AreaUnit decodeAreaUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    static QString toString( QgsUnitTypes::AreaUnit unit );
 
    static QString toAbbreviatedString( QgsUnitTypes::AreaUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::AreaUnit stringToAreaUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static double fromUnitToUnitFactor( QgsUnitTypes::AreaUnit fromUnit, QgsUnitTypes::AreaUnit toUnit );
 
    Q_INVOKABLE static QgsUnitTypes::AreaUnit distanceToAreaUnit( QgsUnitTypes::DistanceUnit distanceUnit );
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnit areaToDistanceUnit( QgsUnitTypes::AreaUnit areaUnit );
 
    // TEMPORAL UNITS
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::TemporalUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::TemporalUnit decodeTemporalUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    static QString toString( QgsUnitTypes::TemporalUnit unit );
 
    static QString toAbbreviatedString( QgsUnitTypes::TemporalUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::TemporalUnit stringToTemporalUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static double fromUnitToUnitFactor( QgsUnitTypes::TemporalUnit fromUnit, QgsUnitTypes::TemporalUnit toUnit );
 
    // VOLUME UNITS
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnitType unitType( QgsUnitTypes::VolumeUnit unit );
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::VolumeUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::VolumeUnit decodeVolumeUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    static QString toString( QgsUnitTypes::VolumeUnit unit );
 
    static QString toAbbreviatedString( QgsUnitTypes::VolumeUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::VolumeUnit stringToVolumeUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static double fromUnitToUnitFactor( QgsUnitTypes::VolumeUnit fromUnit, QgsUnitTypes::VolumeUnit toUnit );
 
    Q_INVOKABLE static QgsUnitTypes::VolumeUnit distanceToVolumeUnit( QgsUnitTypes::DistanceUnit distanceUnit );
 
    Q_INVOKABLE static QgsUnitTypes::DistanceUnit volumeToDistanceUnit( QgsUnitTypes::VolumeUnit volumeUnit );
 
    // ANGULAR UNITS
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::AngleUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::AngleUnit decodeAngleUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    static QString toString( QgsUnitTypes::AngleUnit unit );
 
    Q_INVOKABLE static double fromUnitToUnitFactor( QgsUnitTypes::AngleUnit fromUnit, QgsUnitTypes::AngleUnit toUnit );
 
    Q_INVOKABLE static QString formatAngle( double angle, int decimals, QgsUnitTypes::AngleUnit unit );
 
 
    Q_INVOKABLE static QgsUnitTypes::DistanceValue scaledDistance( double distance, QgsUnitTypes::DistanceUnit unit, int decimals, bool keepBaseUnit = false );
 
    Q_INVOKABLE static QgsUnitTypes::AreaValue scaledArea( double area, QgsUnitTypes::AreaUnit unit, int decimals, bool keepBaseUnit = false );
 
    Q_INVOKABLE static QString formatDistance( double distance, int decimals, QgsUnitTypes::DistanceUnit unit, bool keepBaseUnit = false );
 
    Q_INVOKABLE static QString formatArea( double area, int decimals, QgsUnitTypes::AreaUnit unit, bool keepBaseUnit = false );
 
    // RENDER UNITS
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::RenderUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::RenderUnit decodeRenderUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
 
    static QString toString( QgsUnitTypes::RenderUnit unit );
 
    static QString toAbbreviatedString( QgsUnitTypes::RenderUnit unit );
 
 
    // LAYOUT UNITS
 
    Q_INVOKABLE static QString encodeUnit( QgsUnitTypes::LayoutUnit unit );
 
    Q_INVOKABLE static QgsUnitTypes::LayoutUnit decodeLayoutUnit( const QString &string, bool *ok SIP_OUT = nullptr );
 
    Q_INVOKABLE static QgsUnitTypes::LayoutUnitType unitType( QgsUnitTypes::LayoutUnit units );
 
    static QString toAbbreviatedString( QgsUnitTypes::LayoutUnit unit );
 
    static QString toString( QgsUnitTypes::LayoutUnit unit );
 
};
 
#endif // QGSUNITTYPES_H