68 lines
1.4 KiB
C++
Executable File
68 lines
1.4 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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#include "exercise_context.h"
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#include <QString>
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namespace
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{
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QString EX_PREFIX() { return QStringLiteral("ex_"); }
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QString DEFAULT_CONTEXT() { return QStringLiteral("Default"); } // case sensitive
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} // anonymous namespace
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namespace AudioVideoManagement
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{
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ExerciseContext ExerciseContext::fromByteArray(const QByteArray &s)
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{
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return fromString(QString::fromLatin1(s));
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}
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ExerciseContext ExerciseContext::fromString(const QString &s)
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{
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if (s == DEFAULT_CONTEXT())
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return ExerciseContext::defaultContext();
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Q_ASSERT(s.size() > EX_PREFIX().size());
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Q_ASSERT(s.startsWith(EX_PREFIX()));
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bool couldConvert = false;
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int exerciseId = s.midRef(EX_PREFIX().size()).toInt(&couldConvert);
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Q_ASSERT(couldConvert);
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return ExerciseContext(exerciseId);
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}
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QString ExerciseContext::toString() const
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{
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if (isDefault())
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return DEFAULT_CONTEXT();
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else
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return EX_PREFIX() + QString::number(*m_exerciseId);
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}
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QByteArray ExerciseContext::toByteArray() const
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{
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return toString().toLatin1();
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}
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bool ExerciseContext::operator<(const ExerciseContext &other) const
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{
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return m_exerciseId.get_value_or(0) < other.m_exerciseId.get_value_or(0);
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}
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std::ostream &operator<<(std::ostream &os, const ExerciseContext &ctx)
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{
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return os << ctx.toByteArray().constData();
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}
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} // namespace AudioVideoManagement
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