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/*
enumvalue.h
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2016 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#ifndef GAMMARAY_ENUMVALUE_H
#define GAMMARAY_ENUMVALUE_H
#include "gammaray_common_export.h"
#include <QDataStream>
#include <QMetaType>
namespace GammaRay {
/*! Unique identifier for EnumDefinition instances. */
typedef int EnumId;
/*! Special value constants for GammaRay::EnumId. */
enum EnumIds
{
InvalidEnumId = -1,
FirstValidEnumId = 0
};
/*! A target-independent representation of an enum or flag value. */
class GAMMARAY_COMMON_EXPORT EnumValue
{
public:
EnumValue() = default;
/*! Create a new enum value for EnumDefinition with @p id and value @p value. */
explicit EnumValue(EnumId id, int value);
/*! The unique identifier of the definition of this enum.
* @see EnumDefinition
*/
EnumId id() const;
/*! Returns the numeric value of this enum value. */
int value() const;
/*! Sets the numeric value of this enum value. */
void setValue(int value);
/*! Returns @c true if this instance refers to a valid EnumDefinition. */
bool isValid() const;
private:
friend GAMMARAY_COMMON_EXPORT QDataStream &operator<<(QDataStream &out, const EnumValue &v);
friend GAMMARAY_COMMON_EXPORT QDataStream &operator>>(QDataStream &in, EnumValue &v);
EnumId m_id = InvalidEnumId;
int m_value = 0;
};
///@cond internal
GAMMARAY_COMMON_EXPORT QDataStream &operator<<(QDataStream &out, const EnumValue &v);
GAMMARAY_COMMON_EXPORT QDataStream &operator>>(QDataStream &in, EnumValue &v);
///@endcond
}
Q_DECLARE_METATYPE(GammaRay::EnumValue)
QT_BEGIN_NAMESPACE
Q_DECLARE_TYPEINFO(GammaRay::EnumValue, Q_MOVABLE_TYPE);
QT_END_NAMESPACE
#endif // GAMMARAY_ENUMVALUE_H
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