diff options
Diffstat (limited to 'src/corelib/kernel/qobject_p.h')
-rw-r--r-- | src/corelib/kernel/qobject_p.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h index e4b4ce8b42..e849ec1599 100644 --- a/src/corelib/kernel/qobject_p.h +++ b/src/corelib/kernel/qobject_p.h @@ -1,6 +1,7 @@ /**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Copyright (C) 2013 Olivier Goffart <ogoffart@woboq.com> ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtCore module of the Qt Toolkit. @@ -198,6 +199,14 @@ public: inline void connectNotify(const QMetaMethod &signal); inline void disconnectNotify(const QMetaMethod &signal); + template <typename Func1, typename Func2> + static inline QMetaObject::Connection connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, + const typename QtPrivate::FunctionPointer<Func2>::Object *receiverPrivate, Func2 slot, + Qt::ConnectionType type = Qt::AutoConnection); + + template <typename Func1, typename Func2> + static inline bool disconnect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, + const typename QtPrivate::FunctionPointer<Func2>::Object *receiverPrivate, Func2 slot); public: ExtraData *extraData; // extra data set by the user QThreadData *threadData; // id of the thread that owns the object @@ -267,6 +276,74 @@ inline void QObjectPrivate::disconnectNotify(const QMetaMethod &signal) q_ptr->disconnectNotify(signal); } +namespace QtPrivate { +template<typename Func, typename Args, typename R> class QPrivateSlotObject : public QSlotObjectBase +{ + typedef QtPrivate::FunctionPointer<Func> FuncType; + Func function; + static void impl(int which, QSlotObjectBase *this_, QObject *r, void **a, bool *ret) + { + switch (which) { + case Destroy: + delete static_cast<QPrivateSlotObject*>(this_); + break; + case Call: + FuncType::template call<Args, R>(static_cast<QPrivateSlotObject*>(this_)->function, + static_cast<typename FuncType::Object *>(QObjectPrivate::get(r)), a); + break; + case Compare: + *ret = *reinterpret_cast<Func *>(a) == static_cast<QPrivateSlotObject*>(this_)->function; + break; + case NumOperations: ; + } + } +public: + explicit QPrivateSlotObject(Func f) : QSlotObjectBase(&impl), function(f) {} +}; +} //namespace QtPrivate + +template <typename Func1, typename Func2> +inline QMetaObject::Connection QObjectPrivate::connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, + const typename QtPrivate::FunctionPointer<Func2>::Object *receiverPrivate, Func2 slot, + Qt::ConnectionType type) +{ + typedef QtPrivate::FunctionPointer<Func1> SignalType; + typedef QtPrivate::FunctionPointer<Func2> SlotType; + reinterpret_cast<typename SignalType::Object *>(0)->qt_check_for_QOBJECT_macro(*reinterpret_cast<typename SignalType::Object *>(0)); + + //compilation error if the arguments does not match. + Q_STATIC_ASSERT_X(int(SignalType::ArgumentCount) >= int(SlotType::ArgumentCount), + "The slot requires more arguments than the signal provides."); + Q_STATIC_ASSERT_X((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, typename SlotType::Arguments>::value), + "Signal and slot arguments are not compatible."); + Q_STATIC_ASSERT_X((QtPrivate::AreArgumentsCompatible<typename SlotType::ReturnType, typename SignalType::ReturnType>::value), + "Return type of the slot is not compatible with the return type of the signal."); + + const int *types = 0; + if (type == Qt::QueuedConnection || type == Qt::BlockingQueuedConnection) + types = QtPrivate::ConnectionTypes<typename SignalType::Arguments>::types(); + + return QObject::connectImpl(sender, reinterpret_cast<void **>(&signal), + receiverPrivate->q_func(), reinterpret_cast<void **>(&slot), + new QtPrivate::QPrivateSlotObject<Func2, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotType::ArgumentCount>::Value, + typename SignalType::ReturnType>(slot), + type, types, &SignalType::Object::staticMetaObject); +} + +template <typename Func1, typename Func2> +bool QObjectPrivate::disconnect(const typename QtPrivate::FunctionPointer< Func1 >::Object* sender, Func1 signal, + const typename QtPrivate::FunctionPointer< Func2 >::Object* receiverPrivate, Func2 slot) +{ + typedef QtPrivate::FunctionPointer<Func1> SignalType; + typedef QtPrivate::FunctionPointer<Func2> SlotType; + reinterpret_cast<typename SignalType::Object *>(0)->qt_check_for_QOBJECT_macro(*reinterpret_cast<typename SignalType::Object *>(0)); + //compilation error if the arguments does not match. + Q_STATIC_ASSERT_X((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, typename SlotType::Arguments>::value), + "Signal and slot arguments are not compatible."); + return QObject::disconnectImpl(sender, reinterpret_cast<void **>(&signal), + receiverPrivate->q_func(), reinterpret_cast<void **>(&slot), + &SignalType::Object::staticMetaObject); +} Q_DECLARE_TYPEINFO(QObjectPrivate::Connection, Q_MOVABLE_TYPE); Q_DECLARE_TYPEINFO(QObjectPrivate::Sender, Q_MOVABLE_TYPE); |