diff options
Diffstat (limited to 'src/corelib/kernel/qvariant.h')
| -rw-r--r-- | src/corelib/kernel/qvariant.h | 299 |
1 files changed, 291 insertions, 8 deletions
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h index 6f212f5000..3345131c0f 100644 --- a/src/corelib/kernel/qvariant.h +++ b/src/corelib/kernel/qvariant.h @@ -49,6 +49,7 @@ #include <QtCore/qmap.h> #include <QtCore/qhash.h> #include <QtCore/qstring.h> +#include <QtCore/qstringlist.h> #include <QtCore/qobject.h> QT_BEGIN_NAMESPACE @@ -432,6 +433,14 @@ class Q_CORE_EXPORT QVariant { return cmp(v); } inline bool operator!=(const QVariant &v) const { return !cmp(v); } + inline bool operator<(const QVariant &v) const + { return compare(v) < 0; } + inline bool operator<=(const QVariant &v) const + { return compare(v) <= 0; } + inline bool operator>(const QVariant &v) const + { return compare(v) > 0; } + inline bool operator>=(const QVariant &v) const + { return compare(v) >= 0; } protected: friend inline bool operator==(const QVariant &, const QVariantComparisonHelper &); @@ -449,6 +458,7 @@ public: Private d; void create(int type, const void *copy); bool cmp(const QVariant &other) const; + int compare(const QVariant &other) const; bool convert(const int t, void *ptr) const; private: @@ -562,6 +572,173 @@ inline bool operator!=(const QVariant &v1, const QVariantComparisonHelper &v2) } #endif +class QSequentialIterable +{ + QtMetaTypePrivate::QSequentialIterableImpl m_impl; +public: + struct const_iterator + { + private: + QtMetaTypePrivate::QSequentialIterableImpl m_impl; + QAtomicInt *ref; + friend class QSequentialIterable; + inline explicit const_iterator(const QSequentialIterable &iter, QAtomicInt *ref_) + : m_impl(iter.m_impl), ref(ref_) { ref->ref(); } + + inline explicit const_iterator(const QtMetaTypePrivate::QSequentialIterableImpl &impl, QAtomicInt *ref_) + : m_impl(impl), ref(ref_) { ref->ref(); } + + inline void begin() { m_impl.moveToBegin(); } + inline void end() { m_impl.moveToEnd(); } + public: + inline ~const_iterator() { + if (!ref->deref()) { + m_impl.destroyIter(); + } + } + + inline const_iterator(const const_iterator &other) : m_impl(other.m_impl), ref(other.ref) { + ref->ref(); + } + + inline const QVariant operator*() const { + const QtMetaTypePrivate::VariantData d = m_impl.getCurrent(); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return QVariant(d.metaTypeId, d.data, d.flags); + } + inline bool operator==(const const_iterator &o) const { return m_impl.equal(o.m_impl); } + inline bool operator!=(const const_iterator &o) const { return !m_impl.equal(o.m_impl); } + inline const_iterator &operator++() { m_impl.advance(1); return *this; } + inline const_iterator operator++(int) { QtMetaTypePrivate::QSequentialIterableImpl impl = m_impl; m_impl.advance(1); return const_iterator(impl, this->ref); } + inline const_iterator &operator--() { m_impl.advance(-1); return *this; } + inline const_iterator operator--(int) { QtMetaTypePrivate::QSequentialIterableImpl impl = m_impl; m_impl.advance(-1); return const_iterator(impl, this->ref); } + inline const_iterator &operator+=(int j) { m_impl.advance(j); return *this; } + inline const_iterator &operator-=(int j) { m_impl.advance(-j); return *this; } + inline const_iterator operator+(int j) const { QtMetaTypePrivate::QSequentialIterableImpl impl = m_impl; impl.advance(j); return const_iterator(impl, this->ref); } + inline const_iterator operator-(int j) const { QtMetaTypePrivate::QSequentialIterableImpl impl = m_impl; impl.advance(-j); return const_iterator(impl, this->ref); } + }; + + friend struct const_iterator; + + explicit QSequentialIterable(QtMetaTypePrivate::QSequentialIterableImpl impl) + : m_impl(impl) + { + } + + const_iterator begin() const { const_iterator it(*this, new QAtomicInt(0)); it.begin(); return it; } + const_iterator end() const { const_iterator it(*this, new QAtomicInt(0)); it.end(); return it; } + + QVariant at(int idx) const { + const QtMetaTypePrivate::VariantData d = m_impl.at(idx); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return QVariant(d.metaTypeId, d.data, d.flags); + } + int size() const { return m_impl.size(); } + + bool canReverseIterate() const + { return m_impl._iteratorCapabilities & QtMetaTypePrivate::BiDirectionalCapability; } +}; + +class QAssociativeIterable +{ + QtMetaTypePrivate::QAssociativeIterableImpl m_impl; +public: + struct const_iterator + { + private: + QtMetaTypePrivate::QAssociativeIterableImpl m_impl; + QAtomicInt *ref; + friend class QAssociativeIterable; + inline explicit const_iterator(const QAssociativeIterable &iter, QAtomicInt *ref_) + : m_impl(iter.m_impl), ref(ref_) { ref->ref(); } + + inline explicit const_iterator(const QtMetaTypePrivate::QAssociativeIterableImpl &impl, QAtomicInt *ref_) + : m_impl(impl), ref(ref_) { ref->ref(); } + + inline void begin() { m_impl.begin(); } + inline void end() { m_impl.end(); } + public: + inline ~const_iterator() { + if (!ref->deref()) { + m_impl.destroyIter(); + } + } + inline const_iterator(const const_iterator &other) : m_impl(other.m_impl), ref(other.ref) { + ref->ref(); + } + + inline const QVariant key() const { + const QtMetaTypePrivate::VariantData d = m_impl.getCurrentKey(); + QVariant v(d.metaTypeId, d.data, d.flags); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return v; + } + + inline const QVariant value() const { + const QtMetaTypePrivate::VariantData d = m_impl.getCurrentValue(); + QVariant v(d.metaTypeId, d.data, d.flags); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return v; + } + + inline const QVariant operator*() const { + const QtMetaTypePrivate::VariantData d = m_impl.getCurrentValue(); + QVariant v(d.metaTypeId, d.data, d.flags); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return v; + } + inline bool operator==(const const_iterator &o) const { return m_impl.equal(o.m_impl); } + inline bool operator!=(const const_iterator &o) const { return !m_impl.equal(o.m_impl); } + inline const_iterator &operator++() { m_impl.advance(1); return *this; } + inline const_iterator operator++(int) { QtMetaTypePrivate::QAssociativeIterableImpl impl = m_impl; m_impl.advance(1); return const_iterator(impl, this->ref); } + inline const_iterator &operator--() { m_impl.advance(-1); return *this; } + inline const_iterator operator--(int) { QtMetaTypePrivate::QAssociativeIterableImpl impl = m_impl; m_impl.advance(-1); return const_iterator(impl, this->ref); } + inline const_iterator &operator+=(int j) { m_impl.advance(j); return *this; } + inline const_iterator &operator-=(int j) { m_impl.advance(-j); return *this; } + inline const_iterator operator+(int j) const { QtMetaTypePrivate::QAssociativeIterableImpl impl = m_impl; impl.advance(j); return const_iterator(impl, this->ref); } + inline const_iterator operator-(int j) const { QtMetaTypePrivate::QAssociativeIterableImpl impl = m_impl; impl.advance(-j); return const_iterator(impl, this->ref); } + }; + + friend struct const_iterator; + + explicit QAssociativeIterable(QtMetaTypePrivate::QAssociativeIterableImpl impl) + : m_impl(impl) + { + } + + const_iterator begin() const { const_iterator it(*this, new QAtomicInt(0)); it.begin(); return it; } + const_iterator end() const { const_iterator it(*this, new QAtomicInt(0)); it.end(); return it; } + + QVariant value(const QVariant &key) const + { + QVariant key_ = key; + if (!key_.canConvert(m_impl._metaType_id_key)) + return QVariant(); + if (!key_.convert(m_impl._metaType_id_key)) + return QVariant(); + const QtMetaTypePrivate::VariantData dkey(key_.userType(), key_.constData(), 0 /*key.flags()*/); + QtMetaTypePrivate::QAssociativeIterableImpl impl = m_impl; + impl.find(dkey); + QtMetaTypePrivate::QAssociativeIterableImpl endIt = m_impl; + endIt.end(); + if (impl.equal(endIt)) + return QVariant(); + const QtMetaTypePrivate::VariantData d = impl.getCurrentValue(); + QVariant v(d.metaTypeId, d.data, d.flags); + if (d.metaTypeId == qMetaTypeId<QVariant>()) + return *reinterpret_cast<const QVariant*>(d.data); + return v; + } + + int size() const { return m_impl.size(); } +}; + +#ifndef QT_MOC namespace QtPrivate { template<typename T> struct QVariantValueHelper : TreatAsQObjectBeforeMetaType<QVariantValueHelper<T>, T, const QVariant &, T> @@ -571,26 +748,132 @@ namespace QtPrivate { const int vid = qMetaTypeId<T>(); if (vid == v.userType()) return *reinterpret_cast<const T *>(v.constData()); - if (vid < int(QMetaType::User)) { - T t; - if (v.convert(vid, &t)) - return t; - } + T t; + if (v.convert(vid, &t)) + return t; return T(); } #ifndef QT_NO_QOBJECT static T object(const QVariant &v) { - return qobject_cast<T>(QMetaType::typeFlags(v.userType()) & QMetaType::PointerToQObject ? v.d.data.o : 0); + return qobject_cast<T>(QMetaType::typeFlags(v.userType()) & QMetaType::PointerToQObject + ? v.d.data.o + : QVariantValueHelper::metaType(v)); } #endif }; + + template<typename T> + struct QVariantValueHelperInterface : QVariantValueHelper<T> + { + }; + + template<> + struct QVariantValueHelperInterface<QSequentialIterable> + { + static QSequentialIterable invoke(const QVariant &v) + { + if (v.userType() == qMetaTypeId<QVariantList>()) { + return QSequentialIterable(QtMetaTypePrivate::QSequentialIterableImpl(reinterpret_cast<const QVariantList*>(v.constData()))); + } + if (v.userType() == qMetaTypeId<QStringList>()) { + return QSequentialIterable(QtMetaTypePrivate::QSequentialIterableImpl(reinterpret_cast<const QStringList*>(v.constData()))); + } + return QSequentialIterable(v.value<QtMetaTypePrivate::QSequentialIterableImpl>()); + } + }; + template<> + struct QVariantValueHelperInterface<QAssociativeIterable> + { + static QAssociativeIterable invoke(const QVariant &v) + { + if (v.userType() == qMetaTypeId<QVariantMap>()) { + return QAssociativeIterable(QtMetaTypePrivate::QAssociativeIterableImpl(reinterpret_cast<const QVariantMap*>(v.constData()))); + } + if (v.userType() == qMetaTypeId<QVariantHash>()) { + return QAssociativeIterable(QtMetaTypePrivate::QAssociativeIterableImpl(reinterpret_cast<const QVariantHash*>(v.constData()))); + } + return QAssociativeIterable(v.value<QtMetaTypePrivate::QAssociativeIterableImpl>()); + } + }; + template<> + struct QVariantValueHelperInterface<QVariantList> + { + static QVariantList invoke(const QVariant &v) + { + if (v.userType() == qMetaTypeId<QStringList>() || QMetaType::hasRegisteredConverterFunction(v.userType(), qMetaTypeId<QtMetaTypePrivate::QSequentialIterableImpl>())) { + QSequentialIterable iter = QVariantValueHelperInterface<QSequentialIterable>::invoke(v); + QVariantList l; + l.reserve(iter.size()); + for (QSequentialIterable::const_iterator it = iter.begin(), end = iter.end(); it != end; ++it) + l << *it; + return l; + } + return QVariantValueHelper<QVariantList>::invoke(v); + } + }; + template<> + struct QVariantValueHelperInterface<QVariantHash> + { + static QVariantHash invoke(const QVariant &v) + { + if (QMetaType::hasRegisteredConverterFunction(v.userType(), qMetaTypeId<QtMetaTypePrivate::QAssociativeIterableImpl>())) { + QAssociativeIterable iter = QVariantValueHelperInterface<QAssociativeIterable>::invoke(v); + QVariantHash l; + l.reserve(iter.size()); + for (QAssociativeIterable::const_iterator it = iter.begin(), end = iter.end(); it != end; ++it) + l.insert(it.key().toString(), it.value()); + return l; + } + return QVariantValueHelper<QVariantHash>::invoke(v); + } + }; + template<> + struct QVariantValueHelperInterface<QVariantMap> + { + static QVariantMap invoke(const QVariant &v) + { + if (QMetaType::hasRegisteredConverterFunction(v.userType(), qMetaTypeId<QtMetaTypePrivate::QAssociativeIterableImpl>())) { + QAssociativeIterable iter = QVariantValueHelperInterface<QAssociativeIterable>::invoke(v); + QVariantMap l; + for (QAssociativeIterable::const_iterator it = iter.begin(), end = iter.end(); it != end; ++it) + l.insert(it.key().toString(), it.value()); + return l; + } + return QVariantValueHelper<QVariantMap>::invoke(v); + } + }; + template<> + struct QVariantValueHelperInterface<QPair<QVariant, QVariant> > + { + static QPair<QVariant, QVariant> invoke(const QVariant &v) + { + if (v.userType() == qMetaTypeId<QPair<QVariant, QVariant> >()) + return QVariantValueHelper<QPair<QVariant, QVariant> >::invoke(v); + + if (QMetaType::hasRegisteredConverterFunction(v.userType(), qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>())) { + QtMetaTypePrivate::QPairVariantInterfaceImpl pi = v.value<QtMetaTypePrivate::QPairVariantInterfaceImpl>(); + + const QtMetaTypePrivate::VariantData d1 = pi.first(); + QVariant v1(d1.metaTypeId, d1.data, d1.flags); + if (d1.metaTypeId == qMetaTypeId<QVariant>()) + v1 = *reinterpret_cast<const QVariant*>(d1.data); + + const QtMetaTypePrivate::VariantData d2 = pi.second(); + QVariant v2(d2.metaTypeId, d2.data, d2.flags); + if (d2.metaTypeId == qMetaTypeId<QVariant>()) + v2 = *reinterpret_cast<const QVariant*>(d2.data); + + return QPair<QVariant, QVariant>(v1, v2); + } + return QVariantValueHelper<QPair<QVariant, QVariant> >::invoke(v); + } + }; } -#ifndef QT_MOC template<typename T> inline T qvariant_cast(const QVariant &v) { - return QtPrivate::QVariantValueHelper<T>::invoke(v); + return QtPrivate::QVariantValueHelperInterface<T>::invoke(v); } template<> inline QVariant qvariant_cast<QVariant>(const QVariant &v) |