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tqtinterface/qtinterface/tqt4/Qt/qobject.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOBJECT_H
#define QOBJECT_H
#ifndef QT_NO_QOBJECT
#include <QtCore/qobjectdefs.h>
#include <QtCore/qstring.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qlist.h>
#ifdef QT_INCLUDE_COMPAT
#include <QtCore/qcoreevent.h>
#endif
#include <QtCore/qscopedpointer.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
class QEvent;
class QTimerEvent;
class QChildEvent;
struct QMetaObject;
class QVariant;
class QObjectPrivate;
class QObject;
class QThread;
class QWidget;
#ifndef QT_NO_REGEXP
class QRegExp;
#endif
#ifndef QT_NO_USERDATA
class QObjectUserData;
#endif
typedef QList<QObject*> QObjectList;
#if defined Q_CC_MSVC && _MSC_VER < 1300
template<typename T> inline T qFindChild(const QObject *o, const QString &name = QString(), T = 0);
template<typename T> inline QList<T> qFindChildren(const QObject *o, const QString &name = QString(), T = 0);
# ifndef QT_NO_REGEXP
template<typename T> inline QList<T> qFindChildren(const QObject *o, const QRegExp &re, T = 0);
# endif
#else
template<typename T> inline T qFindChild(const QObject *, const QString & = QString());
template<typename T> inline QList<T> qFindChildren(const QObject *, const QString & = QString());
# ifndef QT_NO_REGEXP
template<typename T> inline QList<T> qFindChildren(const QObject *, const QRegExp &);
# endif
#endif
class
#if defined(__INTEL_COMPILER) && defined(Q_OS_WIN)
Q_CORE_EXPORT
#endif
QObjectData {
public:
virtual ~QObjectData() = 0;
QObject *q_ptr;
QObject *parent;
QObjectList children;
uint isWidget : 1;
uint pendTimer : 1;
uint blockSig : 1;
uint wasDeleted : 1;
uint ownObjectName : 1;
uint sendChildEvents : 1;
uint receiveChildEvents : 1;
uint inEventHandler : 1;
uint inThreadChangeEvent : 1;
uint hasGuards : 1; //true iff there is one or more QPointer attached to this object
uint unused : 22;
int postedEvents;
QMetaObject *metaObject; // assert dynamic
};
class Q_CORE_EXPORT QObject
{
Q_OBJECT
Q_PROPERTY(QString objectName READ objectName WRITE setObjectName)
Q_DECLARE_PRIVATE(QObject)
public:
Q_INVOKABLE explicit QObject(QObject *parent=0);
virtual ~QObject();
virtual bool event(QEvent *);
virtual bool eventFilter(QObject *, QEvent *);
#ifdef qdoc
static QString tr(const char *sourceText, const char *comment = 0, int n = -1);
static QString trUtf8(const char *sourceText, const char *comment = 0, int n = -1);
virtual const QMetaObject *metaObject() const;
static const QMetaObject staticMetaObject;
#endif
#ifdef QT_NO_TRANSLATION
static QString tr(const char *sourceText, const char *, int)
{ return QString::fromLatin1(sourceText); }
static QString tr(const char *sourceText, const char * = 0)
{ return QString::fromLatin1(sourceText); }
#ifndef QT_NO_TEXTCODEC
static QString trUtf8(const char *sourceText, const char *, int)
{ return QString::fromUtf8(sourceText); }
static QString trUtf8(const char *sourceText, const char * = 0)
{ return QString::fromUtf8(sourceText); }
#endif
#endif //QT_NO_TRANSLATION
QString objectName() const;
void setObjectName(const QString &name);
inline bool isWidgetType() const { return d_ptr->isWidget; }
inline bool signalsBlocked() const { return d_ptr->blockSig; }
bool blockSignals(bool b);
QThread *thread() const;
void moveToThread(QThread *thread);
int startTimer(int interval);
void killTimer(int id);
#ifndef QT_NO_MEMBER_TEMPLATES
template<typename T>
inline T findChild(const QString &aName = QString()) const
{ return qFindChild<T>(this, aName); }
template<typename T>
inline QList<T> findChildren(const QString &aName = QString()) const
{ return qFindChildren<T>(this, aName); }
#ifndef QT_NO_REGEXP
template<typename T>
inline QList<T> findChildren(const QRegExp &re) const
{ return qFindChildren<T>(this, re); }
#endif
#endif
#ifdef QT3_SUPPORT
QT3_SUPPORT QObject *child(const char *objName, const char *inheritsClass = 0,
bool recursiveSearch = true) const;
QT3_SUPPORT QObjectList queryList(const char *inheritsClass = 0,
const char *objName = 0,
bool regexpMatch = true,
bool recursiveSearch = true) const;
#endif
inline const QObjectList &children() const { return d_ptr->children; }
const QObjectList *ptrchildren() const;
static const QObjectList *objectTrees();
bool qt_invoke(int slot, QUObject *uo);
void setParent(QObject *);
void installEventFilter(QObject *);
void removeEventFilter(QObject *);
static bool connect(const QObject *sender, const char *signal,
const QObject *receiver, const char *member, Qt::ConnectionType =
#ifdef qdoc
Qt::AutoConnection
#else
#ifdef QT3_SUPPORT
Qt::AutoCompatConnection
#else
Qt::AutoConnection
#endif
#endif
);
inline bool connect(const QObject *sender, const char *signal,
const char *member, Qt::ConnectionType type =
#ifdef qdoc
Qt::AutoConnection
#else
#ifdef QT3_SUPPORT
Qt::AutoCompatConnection
#else
Qt::AutoConnection
#endif
#endif
) const;
static bool disconnect(const QObject *sender, const char *signal,
const QObject *receiver, const char *member);
inline bool disconnect(const char *signal = 0,
const QObject *receiver = 0, const char *member = 0)
{ return disconnect(this, signal, receiver, member); }
inline bool disconnect(const QObject *receiver, const char *member = 0)
{ return disconnect(this, 0, receiver, member); }
void dumpObjectTree();
void dumpObjectInfo();
#ifndef QT_NO_PROPERTIES
bool setProperty(const char *name, const QVariant &value);
QVariant property(const char *name) const;
QList<QByteArray> dynamicPropertyNames() const;
#endif // QT_NO_PROPERTIES
#ifndef QT_NO_USERDATA
static uint registerUserData();
void setUserData(uint id, QObjectUserData* data);
QObjectUserData* userData(uint id) const;
#endif // QT_NO_USERDATA
Q_SIGNALS:
void destroyed(QObject * = 0);
public:
inline QObject *parent() const { return d_ptr->parent; }
inline bool inherits(const char *classname) const
{ return const_cast<QObject *>(this)->qt_metacast(classname) != 0; }
public Q_SLOTS:
void deleteLater();
protected:
QObject *sender() const;
int receivers(const char* signal) const;
virtual void timerEvent(QTimerEvent *);
virtual void childEvent(QChildEvent *);
virtual void customEvent(QEvent *);
virtual void connectNotify(const char *signal);
virtual void disconnectNotify(const char *signal);
#ifdef QT3_SUPPORT
public:
QT3_SUPPORT_CONSTRUCTOR QObject(QObject *parent, const char *name);
inline QT3_SUPPORT void insertChild(QObject *o)
{ if (o) o->setParent(this); }
inline QT3_SUPPORT void removeChild(QObject *o)
{ if (o) o->setParent(0); }
inline QT3_SUPPORT bool isA(const char *classname) const
{ return qstrcmp(classname, metaObject()->className()) == 0; }
inline QT3_SUPPORT const char *className() const { return metaObject()->className(); }
inline QT3_SUPPORT const char *name() const { return objectName().latin1_helper(); }
inline QT3_SUPPORT const char *name(const char *defaultName) const
{ QString s = objectName(); return s.isEmpty()?defaultName:s.latin1_helper(); }
inline QT3_SUPPORT void setName(const char *aName) { setObjectName(QLatin1String(aName)); }
protected:
inline QT3_SUPPORT bool checkConnectArgs(const char *signal,
const QObject *,
const char *member)
{ return QMetaObject::checkConnectArgs(signal, member); }
static inline QT3_SUPPORT QByteArray normalizeSignalSlot(const char *signalSlot)
{ return QMetaObject::normalizedSignature(signalSlot); }
#endif
protected:
QObject(QObjectPrivate &dd, QObject *parent = 0);
public:
QScopedPointer<QObjectData> d_ptr;
protected:
static const QMetaObject staticQtMetaObject;
friend struct QMetaObject;
friend class QApplication;
friend class QApplicationPrivate;
friend class QCoreApplication;
friend class QCoreApplicationPrivate;
friend class QWidget;
friend class QThreadData;
private:
Q_DISABLE_COPY(QObject)
Q_PRIVATE_SLOT(d_func(), void _q_reregisterTimers(void *))
};
inline bool QObject::connect(const QObject *asender, const char *asignal,
const char *amember, Qt::ConnectionType atype) const
{ return connect(asender, asignal, this, amember, atype); }
#ifndef QT_NO_USERDATA
class Q_CORE_EXPORT QObjectUserData {
public:
virtual ~QObjectUserData();
};
#endif
Q_CORE_EXPORT void qt_qFindChildren_helper(const QObject *parent, const QString &name, const QRegExp *re,
const QMetaObject &mo, QList<void *> *list);
Q_CORE_EXPORT QObject *qt_qFindChild_helper(const QObject *parent, const QString &name, const QMetaObject &mo);
#if defined Q_CC_MSVC && _MSC_VER < 1300
template<typename T>
inline T qFindChild(const QObject *o, const QString &name, T)
{ return static_cast<T>(qt_qFindChild_helper(o, name, ((T)0)->staticMetaObject)); }
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QString &name, T)
{
QList<T> list;
union {
QList<T> *typedList;
QList<void *> *voidList;
} u;
u.typedList = &list;
qt_qFindChildren_helper(o, name, 0, ((T)0)->staticMetaObject, u.voidList);
return list;
}
template<typename T>
inline T qFindChild(const QObject *o, const QString &name)
{ return qFindChild<T>(o, name, T(0)); }
template<typename T>
inline T qFindChild(const QObject *o)
{ return qFindChild<T>(o, QString(), T(0)); }
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QString &name)
{ return qFindChildren<T>(o, name, T(0)); }
template<typename T>
inline QList<T> qFindChildren(const QObject *o)
{ return qFindChildren<T>(o, QString(), T(0)); }
#ifndef QT_NO_REGEXP
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QRegExp &re, T)
{
QList<T> list;
union {
QList<T> *typedList;
QList<void *> *voidList;
} u;
u.typedList = &list;
qt_qFindChildren_helper(o, 0, &re, ((T)0)->staticMetaObject, u.voidList);
return list;
}
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QRegExp &re)
{ return qFindChildren<T>(o, re, T(0)); }
#endif
#ifdef Q_MOC_RUN
# define Q_DECLARE_INTERFACE(IFace, IId) Q_DECLARE_INTERFACE(IFace, IId)
#endif // Q_MOC_RUN
template <class T> inline const char * qobject_interface_iid()
{ return 0; }
template <class T> inline T qobject_cast_helper(QObject *object, T)
{ return static_cast<T>(((T)0)->staticMetaObject.cast(object)); }
template <class T> inline T qobject_cast_helper(const QObject *object, T)
{ return static_cast<T>(const_cast<const QObject *>(((T)0)->staticMetaObject.cast(const_cast<QObject *>(object)))); }
template <class T>
inline T qobject_cast(QObject *object)
{ return qobject_cast_helper<T>(object, T(0)); }
template <class T>
inline T qobject_cast(const QObject *object)
{ return qobject_cast_helper<T>(object, T(0)); }
#ifndef Q_MOC_RUN
# define Q_DECLARE_INTERFACE(IFace, IId) \
template <> inline const char *qobject_interface_iid<IFace *>() \
{ return IId; } \
template <> inline IFace *qobject_cast_helper<IFace *>(QObject *object, IFace *) \
{ return (IFace *)(object ? object->qt_metacast(IId) : 0); } \
template <> inline IFace *qobject_cast_helper<IFace *>(const QObject *object, IFace *) \
{ return (IFace *)(object ? const_cast<QObject *>(object)->qt_metacast(IId) : 0); }
#endif // Q_MOC_RUN
#else
template<typename T>
inline T qFindChild(const QObject *o, const QString &name)
{ return static_cast<T>(qt_qFindChild_helper(o, name, reinterpret_cast<T>(0)->staticMetaObject)); }
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QString &name)
{
QList<T> list;
union {
QList<T> *typedList;
QList<void *> *voidList;
} u;
u.typedList = &list;
qt_qFindChildren_helper(o, name, 0, reinterpret_cast<T>(0)->staticMetaObject, u.voidList);
return list;
}
#ifndef QT_NO_REGEXP
template<typename T>
inline QList<T> qFindChildren(const QObject *o, const QRegExp &re)
{
QList<T> list;
union {
QList<T> *typedList;
QList<void *> *voidList;
} u;
u.typedList = &list;
qt_qFindChildren_helper(o, QString(), &re, reinterpret_cast<T>(0)->staticMetaObject, u.voidList);
return list;
}
#endif
template <class T>
inline T qobject_cast(QObject *object)
{
#if !defined(QT_NO_MEMBER_TEMPLATES) && !defined(QT_NO_QOBJECT_CHECK)
reinterpret_cast<T>(0)->qt_check_for_QOBJECT_macro(*reinterpret_cast<T>(object));
#endif
return static_cast<T>(reinterpret_cast<T>(0)->staticMetaObject.cast(object));
}
template <class T>
inline T qobject_cast(const QObject *object)
{
// this will cause a compilation error if T is not const
register T ptr = static_cast<T>(object);
Q_UNUSED(ptr);
#if !defined(QT_NO_MEMBER_TEMPLATES) && !defined(QT_NO_QOBJECT_CHECK)
reinterpret_cast<T>(0)->qt_check_for_QOBJECT_macro(*reinterpret_cast<T>(const_cast<QObject *>(object)));
#endif
return static_cast<T>(const_cast<QObject *>(reinterpret_cast<T>(0)->staticMetaObject.cast(const_cast<QObject *>(object))));
}
template <class T> inline const char * qobject_interface_iid()
{ return 0; }
#ifndef Q_MOC_RUN
# define Q_DECLARE_INTERFACE(IFace, IId) \
template <> inline const char *qobject_interface_iid<IFace *>() \
{ return IId; } \
template <> inline IFace *qobject_cast<IFace *>(QObject *object) \
{ return reinterpret_cast<IFace *>((object ? object->qt_metacast(IId) : 0)); } \
template <> inline IFace *qobject_cast<IFace *>(const QObject *object) \
{ return reinterpret_cast<IFace *>((object ? const_cast<QObject *>(object)->qt_metacast(IId) : 0)); }
#endif // Q_MOC_RUN
#endif
#ifndef QT_NO_DEBUG_STREAM
Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif
#endif // QOBJECT_H