diff options
Diffstat (limited to 'src/corelib/kernel/qvariant.cpp')
-rw-r--r-- | src/corelib/kernel/qvariant.cpp | 63 |
1 files changed, 49 insertions, 14 deletions
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp index 54b4f67..d5b2d16 100644 --- a/src/corelib/kernel/qvariant.cpp +++ b/src/corelib/kernel/qvariant.cpp @@ -685,6 +685,7 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result, break; case QVariant::Url: *str = v_cast<QUrl>(d)->toString(); + break; default: return false; } @@ -962,10 +963,10 @@ static bool convert(const QVariant::Private *d, QVariant::Type t, void *result, float *f = static_cast<float *>(result); switch (d->type) { case QVariant::String: - *f = float(v_cast<QString>(d)->toDouble(ok)); + *f = v_cast<QString>(d)->toFloat(ok); break; case QVariant::ByteArray: - *f = float(v_cast<QByteArray>(d)->toDouble(ok)); + *f = v_cast<QByteArray>(d)->toFloat(ok); break; case QVariant::Bool: *f = float(d->data.b); @@ -1080,7 +1081,7 @@ static void streamDebug(QDebug dbg, const QVariant &v) dbg.nospace() << v.toULongLong(); break; case QMetaType::Float: - dbg.nospace() << qVariantValue<float>(v); + dbg.nospace() << v.toFloat(); break; case QMetaType::QObjectStar: dbg.nospace() << qVariantValue<QObject *>(v); @@ -1190,9 +1191,8 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler; \brief The QVariant class acts like a union for the most common Qt data types. \ingroup objectmodel - \ingroup misc \ingroup shared - \mainclass + Because C++ forbids unions from including types that have non-default constructors or destructors, most interesting Qt @@ -2357,16 +2357,17 @@ QBitArray QVariant::toBitArray() const } template <typename T> -inline T qNumVariantToHelper(const QVariant::Private &d, QVariant::Type t, +inline T qNumVariantToHelper(const QVariant::Private &d, const QVariant::Handler *handler, bool *ok, const T& val) { + uint t = qMetaTypeId<T>(); if (ok) *ok = true; if (d.type == t) return val; T ret; - if (!handler->convert(&d, t, &ret, ok) && ok) + if (!handler->convert(&d, QVariant::Type(t), &ret, ok) && ok) *ok = false; return ret; } @@ -2388,7 +2389,7 @@ inline T qNumVariantToHelper(const QVariant::Private &d, QVariant::Type t, */ int QVariant::toInt(bool *ok) const { - return qNumVariantToHelper<int>(d, Int, handler, ok, d.data.i); + return qNumVariantToHelper<int>(d, handler, ok, d.data.i); } /*! @@ -2408,7 +2409,7 @@ int QVariant::toInt(bool *ok) const */ uint QVariant::toUInt(bool *ok) const { - return qNumVariantToHelper<uint>(d, UInt, handler, ok, d.data.u); + return qNumVariantToHelper<uint>(d, handler, ok, d.data.u); } /*! @@ -2423,7 +2424,7 @@ uint QVariant::toUInt(bool *ok) const */ qlonglong QVariant::toLongLong(bool *ok) const { - return qNumVariantToHelper<qlonglong>(d, LongLong, handler, ok, d.data.ll); + return qNumVariantToHelper<qlonglong>(d, handler, ok, d.data.ll); } /*! @@ -2439,7 +2440,7 @@ qlonglong QVariant::toLongLong(bool *ok) const */ qulonglong QVariant::toULongLong(bool *ok) const { - return qNumVariantToHelper<qulonglong>(d, ULongLong, handler, ok, d.data.ull); + return qNumVariantToHelper<qulonglong>(d, handler, ok, d.data.ull); } /*! @@ -2466,7 +2467,7 @@ bool QVariant::toBool() const /*! Returns the variant as a double if the variant has type() \l - Double, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l UInt, or \l ULongLong; otherwise returns 0.0. If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be @@ -2476,7 +2477,41 @@ bool QVariant::toBool() const */ double QVariant::toDouble(bool *ok) const { - return qNumVariantToHelper<double>(d, Double, handler, ok, d.data.d); + return qNumVariantToHelper<double>(d, handler, ok, d.data.d); +} + +/*! + Returns the variant as a float if the variant has type() \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + UInt, or \l ULongLong; otherwise returns 0.0. + + \since 4.6 + + If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be + converted to a double; otherwise \c{*}\a{ok} is set to false. + + \sa canConvert(), convert() +*/ +float QVariant::toFloat(bool *ok) const +{ + return qNumVariantToHelper<float>(d, handler, ok, d.data.d); +} + +/*! + Returns the variant as a qreal if the variant has type() \l + Double, \l QMetaType::Float, \l Bool, \l ByteArray, \l Int, \l LongLong, \l String, \l + UInt, or \l ULongLong; otherwise returns 0.0. + + \since 4.6 + + If \a ok is non-null: \c{*}\a{ok} is set to true if the value could be + converted to a double; otherwise \c{*}\a{ok} is set to false. + + \sa canConvert(), convert() +*/ +qreal QVariant::toReal(bool *ok) const +{ + return qNumVariantToHelper<qreal>(d, handler, ok, d.data.d); } /*! @@ -2767,7 +2802,7 @@ bool QVariant::cmp(const QVariant &v) const if (d.type != v2.d.type) { if (qIsNumericType(d.type) && qIsNumericType(v.d.type)) { if (qIsFloatingPoint(d.type) || qIsFloatingPoint(v.d.type)) - return qFuzzyCompare(toDouble(), v.toDouble()); + return qFuzzyCompare(toReal(), v.toReal()); else return toLongLong() == v.toLongLong(); } |