68 lines
1.7 KiB
C++
Executable File
68 lines
1.7 KiB
C++
Executable File
/**
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* @RDE_HEADER@
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* ExerciseContext
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* $Id$
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* $HeadURL$
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* $Author$
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* Created by Christian Fröbel, SLSE, 2017-11-22
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*/
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#pragma once
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#include "avm_export.h"
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#include <boost/optional.hpp>
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#include <QtGlobal>
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#include <ostream>
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class QString;
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class QByteArray;
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namespace AudioVideoManagement
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{
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/**
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* Small value class in order to handle the exercise context (string) used in AVS.
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* Such a context is associated with an exercise ID used by our system.
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* But AVS also has the notion of a default context named "default"
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* which has no associated ID on our side.
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*
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* @author Christian Fröbel
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*/
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class AVM_COMMON_EXPORT ExerciseContext
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{
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public:
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explicit ExerciseContext(int exerciseId)
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: m_exerciseId(exerciseId)
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{
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//Q_ASSERT(exerciseId > 0);
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}
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static ExerciseContext defaultContext() { return ExerciseContext(); }
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static ExerciseContext fromByteArray(const QByteArray &s);
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static ExerciseContext fromString(const QString &s);
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bool isDefault() const { return !m_exerciseId.is_initialized(); }
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/** May only be called if this is not the "default" context. */
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int id() const { return *m_exerciseId; }
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QString toString() const;
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QByteArray toByteArray() const;
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bool operator==(const ExerciseContext &other) const { return m_exerciseId == other.m_exerciseId; }
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bool operator!=(const ExerciseContext &other) const { return !(*this == other); }
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bool operator<(const ExerciseContext &other) const;
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private:
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/** Create the "default" AVS context. */
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ExerciseContext() = default;
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boost::optional<int> m_exerciseId; //!< not set for "default" context
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};
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AVM_COMMON_EXPORT std::ostream &operator<<(std::ostream &os, const ExerciseContext &ctx);
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} // namespace AudioVideoManagement
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