qgsvariantutils.h

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/***************************************************************************
    qgsvariantutils.h
    ------------------
    Date                 : January 2022
    Copyright            : (C) 2022 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 QGSVARIANTUTILS_H
#define QGSVARIANTUTILS_H
 
#include "qgis.h"
#include "qgis_core.h"
#include "qgis_sip.h"

class CORE_EXPORT QgsVariantUtils
{
  public:
    static QString typeToDisplayString( QMetaType::Type type, QMetaType::Type subType = QMetaType::Type::UnknownType );

    Q_DECL_DEPRECATED static QString typeToDisplayString( QVariant::Type type, QVariant::Type subType = QVariant::Type::Invalid ) SIP_DEPRECATED;

    static bool isNull( const QVariant &variant, bool silenceNullWarnings SIP_PYARGREMOVE = false );

    static bool isNumericType( QMetaType::Type metaType );

    static QMetaType::Type variantTypeToMetaType( QVariant::Type variantType ) SIP_SKIP;

    static QVariant::Type metaTypeToVariantType( QMetaType::Type metaType ) SIP_SKIP;

    static bool isUnsetAttributeValue( const QVariant &variant ) SIP_SKIP;
 
    // TODO QGIS 5 remove this method

    static QVariant createNullVariant( QMetaType::Type metaType ) SIP_SKIP;

    static QString displayString( const QVariant &variant, int precision = -1 );
};
 
#endif // QGSVARIANTUTILS_H