mirror of
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313 lines
12 KiB
C++
313 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2014 Olivier Goffart <ogoffart@woboq.com>
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QMETAOBJECT_H
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#define QMETAOBJECT_H
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#include <QtCore/qobjectdefs.h>
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#include <QtCore/qvariant.h>
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QT_BEGIN_NAMESPACE
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template <typename T> class QList;
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#define Q_METAMETHOD_INVOKE_MAX_ARGS 10
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class Q_CORE_EXPORT QMetaMethod
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{
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public:
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Q_DECL_CONSTEXPR inline QMetaMethod() : mobj(Q_NULLPTR), handle(0) {}
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QByteArray methodSignature() const;
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QByteArray name() const;
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const char *typeName() const;
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int returnType() const;
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int parameterCount() const;
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int parameterType(int index) const;
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void getParameterTypes(int *types) const;
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QList<QByteArray> parameterTypes() const;
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QList<QByteArray> parameterNames() const;
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const char *tag() const;
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enum Access { Private, Protected, Public };
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Access access() const;
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enum MethodType { Method, Signal, Slot, Constructor };
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MethodType methodType() const;
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enum Attributes { Compatibility = 0x1, Cloned = 0x2, Scriptable = 0x4 };
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int attributes() const;
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int methodIndex() const;
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int revision() const;
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inline const QMetaObject *enclosingMetaObject() const { return mobj; }
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bool invoke(QObject *object,
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Qt::ConnectionType connectionType,
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QGenericReturnArgument returnValue,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const;
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inline bool invoke(QObject *object,
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QGenericReturnArgument returnValue,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const
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{
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return invoke(object, Qt::AutoConnection, returnValue,
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val0, val1, val2, val3, val4, val5, val6, val7, val8, val9);
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}
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inline bool invoke(QObject *object,
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Qt::ConnectionType connectionType,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const
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{
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return invoke(object, connectionType, QGenericReturnArgument(),
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val0, val1, val2, val3, val4, val5, val6, val7, val8, val9);
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}
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inline bool invoke(QObject *object,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const
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{
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return invoke(object, Qt::AutoConnection, QGenericReturnArgument(),
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val0, val1, val2, val3, val4, val5, val6, val7, val8, val9);
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}
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bool invokeOnGadget(void *gadget,
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QGenericReturnArgument returnValue,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const;
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inline bool invokeOnGadget(void *gadget,
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QGenericArgument val0 = QGenericArgument(Q_NULLPTR),
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QGenericArgument val1 = QGenericArgument(),
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QGenericArgument val2 = QGenericArgument(),
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QGenericArgument val3 = QGenericArgument(),
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QGenericArgument val4 = QGenericArgument(),
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QGenericArgument val5 = QGenericArgument(),
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QGenericArgument val6 = QGenericArgument(),
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QGenericArgument val7 = QGenericArgument(),
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QGenericArgument val8 = QGenericArgument(),
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QGenericArgument val9 = QGenericArgument()) const
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{
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return invokeOnGadget(gadget, QGenericReturnArgument(),
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val0, val1, val2, val3, val4, val5, val6, val7, val8, val9);
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}
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inline bool isValid() const { return mobj != Q_NULLPTR; }
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#ifdef Q_QDOC
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static QMetaMethod fromSignal(PointerToMemberFunction signal);
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#else
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template <typename Func>
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static inline QMetaMethod fromSignal(Func signal)
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{
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typedef QtPrivate::FunctionPointer<Func> SignalType;
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Q_STATIC_ASSERT_X(QtPrivate::HasQ_OBJECT_Macro<typename SignalType::Object>::Value,
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"No Q_OBJECT in the class with the signal");
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return fromSignalImpl(&SignalType::Object::staticMetaObject,
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reinterpret_cast<void **>(&signal));
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}
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#endif
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private:
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#if QT_DEPRECATED_SINCE(5,0)
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// signature() has been renamed to methodSignature() in Qt 5.
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// Warning, that function returns a QByteArray; check the life time if
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// you convert to char*.
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char *signature(struct renamedInQt5_warning_checkTheLifeTime * = 0) Q_DECL_EQ_DELETE;
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#endif
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static QMetaMethod fromSignalImpl(const QMetaObject *, void **);
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const QMetaObject *mobj;
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uint handle;
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friend class QMetaMethodPrivate;
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friend struct QMetaObject;
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friend struct QMetaObjectPrivate;
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friend class QObject;
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friend bool operator==(const QMetaMethod &m1, const QMetaMethod &m2);
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friend bool operator!=(const QMetaMethod &m1, const QMetaMethod &m2);
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};
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Q_DECLARE_TYPEINFO(QMetaMethod, Q_MOVABLE_TYPE);
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inline bool operator==(const QMetaMethod &m1, const QMetaMethod &m2)
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{ return m1.mobj == m2.mobj && m1.handle == m2.handle; }
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inline bool operator!=(const QMetaMethod &m1, const QMetaMethod &m2)
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{ return !(m1 == m2); }
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class Q_CORE_EXPORT QMetaEnum
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{
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public:
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Q_DECL_CONSTEXPR inline QMetaEnum() : mobj(Q_NULLPTR), handle(0) {}
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const char *name() const;
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bool isFlag() const;
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int keyCount() const;
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const char *key(int index) const;
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int value(int index) const;
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const char *scope() const;
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int keyToValue(const char *key, bool *ok = Q_NULLPTR) const;
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const char* valueToKey(int value) const;
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int keysToValue(const char * keys, bool *ok = Q_NULLPTR) const;
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QByteArray valueToKeys(int value) const;
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inline const QMetaObject *enclosingMetaObject() const { return mobj; }
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inline bool isValid() const { return name() != Q_NULLPTR; }
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template<typename T> static QMetaEnum fromType() {
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Q_STATIC_ASSERT_X(QtPrivate::IsQEnumHelper<T>::Value,
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"QMetaEnum::fromType only works with enums declared as Q_ENUM or Q_FLAG");
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const QMetaObject *metaObject = qt_getEnumMetaObject(T());
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const char *name = qt_getEnumName(T());
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return metaObject->enumerator(metaObject->indexOfEnumerator(name));
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}
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private:
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const QMetaObject *mobj;
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uint handle;
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friend struct QMetaObject;
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};
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Q_DECLARE_TYPEINFO(QMetaEnum, Q_MOVABLE_TYPE);
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class Q_CORE_EXPORT QMetaProperty
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{
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public:
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QMetaProperty();
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const char *name() const;
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const char *typeName() const;
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QVariant::Type type() const;
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int userType() const;
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int propertyIndex() const;
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bool isReadable() const;
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bool isWritable() const;
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bool isResettable() const;
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bool isDesignable(const QObject *obj = Q_NULLPTR) const;
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bool isScriptable(const QObject *obj = Q_NULLPTR) const;
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bool isStored(const QObject *obj = Q_NULLPTR) const;
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bool isEditable(const QObject *obj = Q_NULLPTR) const;
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bool isUser(const QObject *obj = Q_NULLPTR) const;
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bool isConstant() const;
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bool isFinal() const;
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bool isFlagType() const;
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bool isEnumType() const;
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QMetaEnum enumerator() const;
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bool hasNotifySignal() const;
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QMetaMethod notifySignal() const;
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int notifySignalIndex() const;
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int revision() const;
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QVariant read(const QObject *obj) const;
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bool write(QObject *obj, const QVariant &value) const;
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bool reset(QObject *obj) const;
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QVariant readOnGadget(const void *gadget) const;
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bool writeOnGadget(void *gadget, const QVariant &value) const;
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bool resetOnGadget(void *gadget) const;
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bool hasStdCppSet() const;
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inline bool isValid() const { return isReadable(); }
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inline const QMetaObject *enclosingMetaObject() const { return mobj; }
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private:
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int registerPropertyType() const;
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const QMetaObject *mobj;
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uint handle;
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int idx;
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QMetaEnum menum;
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friend struct QMetaObject;
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friend struct QMetaObjectPrivate;
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};
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class Q_CORE_EXPORT QMetaClassInfo
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{
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public:
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Q_DECL_CONSTEXPR inline QMetaClassInfo() : mobj(Q_NULLPTR), handle(0) {}
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const char *name() const;
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const char *value() const;
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inline const QMetaObject *enclosingMetaObject() const { return mobj; }
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private:
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const QMetaObject *mobj;
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uint handle;
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friend struct QMetaObject;
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};
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Q_DECLARE_TYPEINFO(QMetaClassInfo, Q_MOVABLE_TYPE);
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QT_END_NAMESPACE
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#endif // QMETAOBJECT_H
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