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#include "qmetaobject.h"

#include "qmetatype.h"

#include "qobject.h"

#include <qcoreapplication.h>

#include <qcoreevent.h>

#include <qdatastream.h>

#include <qstringlist.h>

#include <qthread.h>

#include <qvarlengtharray.h>

#include <qvariant.h>

#include <qhash.h>

#include <qdebug.h>

#include <qsemaphore.h>

#include "private/qobject_p.h"

#include "private/qmetaobject_p.h"

#include <ctype.h>

QT_BEGIN_NAMESPACE

/*!

    \class QMetaObject

    \brief The QMetaObject class contains meta-information about Qt

    objects.

    \ingroup objectmodel

    The Qt \l{Meta-Object System} in Qt is responsible for the

    signals and slots inter-object communication mechanism, runtime

    type information, and the Qt property system. A single

    QMetaObject instance is created for each QObject subclass that is

    used in an application, and this instance stores all the

    meta-information for the QObject subclass. This object is

    available as QObject::metaObject().

    This class is not normally required for application programming,

    but it is useful if you write meta-applications, such as scripting

    engines or GUI builders.

    The functions you are most likely to find useful are these:

    \list

    \o className() returns the name of a class.

    \o superClass() returns the superclass's meta-object.

    \o method() and methodCount() provide information

       about a class's meta-methods (signals, slots and other

       \l{Q_INVOKABLE}{invokable} member functions).

    \o enumerator() and enumeratorCount() and provide information about

       a class's enumerators.

    \o propertyCount() and property() provide information about a

       class's properties.

    \o constructor() and constructorCount() provide information

       about a class's meta-constructors.

    \endlist

    The index functions indexOfConstructor(), indexOfMethod(),

    indexOfEnumerator(), and indexOfProperty() map names of constructors,

    member functions, enumerators, or properties to indexes in the

    meta-object. For example, Qt uses indexOfMethod() internally when you

    connect a signal to a slot.

    Classes can also have a list of \e{name}--\e{value} pairs of

    additional class information, stored in QMetaClassInfo objects.

    The number of pairs is returned by classInfoCount(), single pairs

    are returned by classInfo(), and you can search for pairs with

    indexOfClassInfo().

    \sa QMetaClassInfo, QMetaEnum, QMetaMethod, QMetaProperty, QMetaType,

        {Meta-Object System}

*/

/*!

    \enum QMetaObject::Call

    \internal

    \value InvokeSlot

    \value EmitSignal

    \value ReadProperty

    \value WriteProperty

    \value ResetProperty

    \value QueryPropertyDesignable

    \value QueryPropertyScriptable

    \value QueryPropertyStored

    \value QueryPropertyEditable

    \value QueryPropertyUser

    \value CreateInstance

*/

/*!

    \enum QMetaMethod::Access

    This enum describes the access level of a method, following the conventions used in C++.

    \value Private

    \value Protected

    \value Public

*/

static inline const QMetaObjectPrivate *priv(const uint* data)

{ return reinterpret_cast<const QMetaObjectPrivate*>(data); }

/*!

    \since 4.5

    Constructs a new instance of this class. You can pass up to ten arguments

    (\a val0, \a val1, \a val2, \a val3, \a val4, \a val5, \a val6, \a val7,

    \a val8, and \a val9) to the constructor. Returns the new object, or 0 if

    no suitable constructor is available.

    Note that only constructors that are declared with the Q_INVOKABLE

    modifier are made available through the meta-object system.

    \sa Q_ARG(), constructor()

*/

QObject *QMetaObject::newInstance(QGenericArgument val0,

                                  QGenericArgument val1,

                                  QGenericArgument val2,

                                  QGenericArgument val3,

                                  QGenericArgument val4,

                                  QGenericArgument val5,

                                  QGenericArgument val6,

                                  QGenericArgument val7,

                                  QGenericArgument val8,

                                  QGenericArgument val9) const

{

    QByteArray constructorName = className();

    {

        int idx = constructorName.lastIndexOf(':');

        if (idx != -1)

            constructorName.remove(0, idx+1); // remove qualified part

    }

    QVarLengthArray<char, 512> sig;

    sig.append(constructorName.constData(), constructorName.length());

    sig.append('(');

    enum { MaximumParamCount = 10 };

    const char *typeNames[] = {val0.name(), val1.name(), val2.name(), val3.name(), val4.name(),

                               val5.name(), val6.name(), val7.name(), val8.name(), val9.name()};

    int paramCount;

    for (paramCount = 0; paramCount < MaximumParamCount; ++paramCount) {

        int len = qstrlen(typeNames[paramCount]);

        if (len <= 0)

            break;

        sig.append(typeNames[paramCount], len);

        sig.append(',');

    }

    if (paramCount == 0)

        sig.append(')'); // no parameters

    else

        sig[sig.size() - 1] = ')';

    sig.append('\0');

    int idx = indexOfConstructor(sig.constData());

    if (idx < 0) {

        QByteArray norm = QMetaObject::normalizedSignature(sig.constData());

        idx = indexOfConstructor(norm.constData());

    }

    if (idx < 0)

        return 0;

    QVariant ret(QMetaType::QObjectStar, (void*)0);

    void *param[] = {ret.data(), val0.data(), val1.data(), val2.data(), val3.data(), val4.data(),

                     val5.data(), val6.data(), val7.data(), val8.data(), val9.data()};

    if (static_metacall(CreateInstance, idx, param) >= 0)

        return 0;

    return *reinterpret_cast<QObject**>(param[0]);

}

/*!

    \internal

*/

int QMetaObject::static_metacall(Call cl, int idx, void **argv) const

{

    if (priv(d.data)->revision < 2)

        return 0;

    const QMetaObjectExtraData *extra = (const QMetaObjectExtraData*)(d.extradata);

    if (!extra || !extra->static_metacall)

        return 0;

    return extra->static_metacall(cl, idx, argv);

}

/*!

    \internal

*/

int QMetaObject::metacall(QObject *object, Call cl, int idx, void **argv)

{

    if (QMetaObject *mo = object->d_ptr->metaObject)

        return static_cast<QAbstractDynamicMetaObject*>(mo)->metaCall(cl, idx, argv);

    else

        return object->qt_metacall(cl, idx, argv);

}

/*!

    \fn const char *QMetaObject::className() const

    Returns the class name.

    \sa superClass()

*/

/*!

    \fn QMetaObject *QMetaObject::superClass() const

    Returns the meta-object of the superclass, or 0 if there is no

    such object.

    \sa className()

*/

/*!

    \internal

    Returns \a obj if object \a obj inherits from this

    meta-object; otherwise returns 0.

*/

QObject *QMetaObject::cast(QObject *obj) const

{

    if (obj) {

        const QMetaObject *m = obj->metaObject();

        do {

            if (m == this)

                return const_cast<QObject*>(obj);

        } while ((m = m->d.superdata));

    }

    return 0;

}

#ifndef QT_NO_TRANSLATION

/*!

    \internal

*/

QString QMetaObject::tr(const char *s, const char *c) const

{

    return QCoreApplication::translate(d.stringdata, s, c, QCoreApplication::CodecForTr);

}

/*!

    \internal

*/

QString QMetaObject::tr(const char *s, const char *c, int n) const

{

    return QCoreApplication::translate(d.stringdata, s, c, QCoreApplication::CodecForTr, n);

}

/*!

    \internal

*/

QString QMetaObject::trUtf8(const char *s, const char *c) const

{

    return QCoreApplication::translate(d.stringdata, s, c, QCoreApplication::UnicodeUTF8);

}

/*!

    \internal

*/

QString QMetaObject::trUtf8(const char *s, const char *c, int n) const

{

    return QCoreApplication::translate(d.stringdata, s, c, QCoreApplication::UnicodeUTF8, n);

}

#endif // QT_NO_TRANSLATION

/*!

    Returns the method offset for this class; i.e. the index position

    of this class's first member function.

    The offset is the sum of all the methods in the class's

    superclasses (which is always positive since QObject has the

    deleteLater() slot and a destroyed() signal).

    \sa method(), methodCount(), indexOfMethod()

*/

int QMetaObject::methodOffset() const

{

    int offset = 0;

    const QMetaObject *m = d.superdata;

    while (m) {

        offset += priv(m->d.data)->methodCount;

        m = m->d.superdata;

    }

    return offset;

}

/*!

    Returns the enumerator offset for this class; i.e. the index

    position of this class's first enumerator.

    If the class has no superclasses with enumerators, the offset is

    0; otherwise the offset is the sum of all the enumerators in the

    class's superclasses.

    \sa enumerator(), enumeratorCount(), indexOfEnumerator()

*/

int QMetaObject::enumeratorOffset() const

{

    int offset = 0;

    const QMetaObject *m = d.superdata;

    while (m) {

        offset += priv(m->d.data)->enumeratorCount;

        m = m->d.superdata;

    }

    return offset;

}

/*!

    Returns the property offset for this class; i.e. the index

    position of this class's first property.

    The offset is the sum of all the properties in the class's

    superclasses (which is always positive since QObject has the

    name() property).

    \sa property(), propertyCount(), indexOfProperty()

*/

int QMetaObject::propertyOffset() const

{

    int offset = 0;

    const QMetaObject *m = d.superdata;

    while (m) {

        offset += priv(m->d.data)->propertyCount;

        m = m->d.superdata;

    }

    return offset;

}

/*!

    Returns the class information offset for this class; i.e. the

    index position of this class's first class information item.

    If the class has no superclasses with class information, the

    offset is 0; otherwise the offset is the sum of all the class

    information items in the class's superclasses.

    \sa classInfo(), classInfoCount(), indexOfClassInfo()

*/

int QMetaObject::classInfoOffset() const

{

    int offset = 0;

    const QMetaObject *m = d.superdata;

    while (m) {

        offset += priv(m->d.data)->classInfoCount;

        m = m->d.superdata;

    }

    return offset;

}

/*!

    \since 4.5

    Returns the number of constructors in this class.

    \sa constructor(), indexOfConstructor()

*/

int QMetaObject::constructorCount() const

{

    if (priv(d.data)->revision < 2)

        return 0;

    return priv(d.data)->constructorCount;

}

/*!

    Returns the number of methods in this class, including the number of

    properties provided by each base class. These include signals and slots

    as well as normal member functions.

    Use code like the following to obtain a QStringList containing the methods

    specific to a given class:

    \snippet doc/src/snippets/code/src_corelib_kernel_qmetaobject.cpp methodCount

    \sa method(), methodOffset(), indexOfMethod()

*/

int QMetaObject::methodCount() const

{

    int n = priv(d.data)->methodCount;

    const QMetaObject *m = d.superdata;

    while (m) {

        n += priv(m->d.data)->methodCount;

        m = m->d.superdata;

    }

    return n;

}

/*!

    Returns the number of enumerators in this class.

    \sa enumerator(), enumeratorOffset(), indexOfEnumerator()

*/

int QMetaObject::enumeratorCount() const

{

    int n = priv(d.data)->enumeratorCount;

    const QMetaObject *m = d.superdata;

    while (m) {

        n += priv(m->d.data)->enumeratorCount;

        m = m->d.superdata;

    }

    return n;

}

/*!

    Returns the number of properties in this class, including the number of

    properties provided by each base class.

    Use code like the following to obtain a QStringList containing the properties

    specific to a given class:

    \snippet doc/src/snippets/code/src_corelib_kernel_qmetaobject.cpp propertyCount

    \sa property(), propertyOffset(), indexOfProperty()

*/

int QMetaObject::propertyCount() const

{

    int n = priv(d.data)->propertyCount;

    const QMetaObject *m = d.superdata;

    while (m) {

        n += priv(m->d.data)->propertyCount;

        m = m->d.superdata;

    }

    return n;

}

/*!

    Returns the number of items of class information in this class.

    \sa classInfo(), classInfoOffset(), indexOfClassInfo()

*/

int QMetaObject::classInfoCount() const

{

    int n = priv(d.data)->classInfoCount;

    const QMetaObject *m = d.superdata;

    while (m) {

        n += priv(m->d.data)->classInfoCount;

        m = m->d.superdata;

    }

    return n;

}

/** \internal

* helper function for indexOf{Method,Slot,Signal}, returns the relative index of the method within

* the baseObject

* \a MethodType might be MethodSignal or MethodSlot, or 0 to match everything.

* \a normalizeStringData set to true if we should do a second pass for old moc generated files normalizing all the symbols.

*/

template<int MethodType>

static inline int indexOfMethodRelative(const QMetaObject **baseObject,

                                        const char *method,

                                        bool normalizeStringData)

{

    for (const QMetaObject *m = *baseObject; m; m = m->d.superdata) {

        int i = (MethodType == MethodSignal && priv(m->d.data)->revision >= 4)

                ? (priv(m->d.data)->signalCount - 1) : (priv(m->d.data)->methodCount - 1);

        const int end = (MethodType == MethodSlot && priv(m->d.data)->revision >= 4)

                        ? (priv(m->d.data)->signalCount) : 0;

        if (!normalizeStringData) {

            for (; i >= end; --i) {

                const char *stringdata = m->d.stringdata + m->d.data[priv(m->d.data)->methodData + 5*i];

                if (method[0] == stringdata[0] && strcmp(method + 1, stringdata + 1) == 0) {

                    *baseObject = m;

                    return i;

                }

            }

        } else if (priv(m->d.data)->revision < 5) {

            for (; i >= end; --i) {

                const char *stringdata = (m->d.stringdata + m->d.data[priv(m->d.data)->methodData + 5 * i]);

                const QByteArray normalizedSignature = QMetaObject::normalizedSignature(stringdata);

                if (normalizedSignature == method) {

                    *baseObject = m;

                    return i;

                }

            }

        }

    }

    return -1;

}

/*!

    \since 4.5