Initial import from the monolithic Qt.

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 305 insertions, 0 deletions

diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QOBJECT_P_H
+#define QOBJECT_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
+// file may change from version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "QtCore/qobject.h"
+#include "QtCore/qpointer.h"
+#include "QtCore/qsharedpointer.h"
+#include "QtCore/qcoreevent.h"
+#include "QtCore/qlist.h"
+#include "QtCore/qvector.h"
+#include "QtCore/qreadwritelock.h"
+#include "QtCore/qvariant.h"
+
+QT_BEGIN_NAMESPACE
+
+class QVariant;
+class QThreadData;
+class QObjectConnectionListVector;
+namespace QtSharedPointer { struct ExternalRefCountData; }
+
+/* mirrored in QtTestLib, DON'T CHANGE without prior warning */
+struct QSignalSpyCallbackSet
+{
+    typedef void (*BeginCallback)(QObject *caller, int method_index, void **argv);
+    typedef void (*EndCallback)(QObject *caller, int method_index);
+    BeginCallback signal_begin_callback,
+                    slot_begin_callback;
+    EndCallback signal_end_callback,
+                slot_end_callback;
+};
+void Q_CORE_EXPORT qt_register_signal_spy_callbacks(const QSignalSpyCallbackSet &callback_set);
+
+extern QSignalSpyCallbackSet Q_CORE_EXPORT qt_signal_spy_callback_set;
+
+enum { QObjectPrivateVersion = QT_VERSION };
+
+class Q_CORE_EXPORT QAbstractDeclarativeData
+{
+public:
+    static void (*destroyed)(QAbstractDeclarativeData *, QObject *);
+    static void (*parentChanged)(QAbstractDeclarativeData *, QObject *, QObject *);
+    static void (*objectNameChanged)(QAbstractDeclarativeData *, QObject *);
+};
+
+class Q_CORE_EXPORT QObjectPrivate : public QObjectData
+{
+    Q_DECLARE_PUBLIC(QObject)
+
+public:
+    struct ExtraData
+    {
+        ExtraData() {}
+#ifndef QT_NO_USERDATA
+        QVector<QObjectUserData *> userData;
+#endif
+        QList<QByteArray> propertyNames;
+        QList<QVariant> propertyValues;
+    };
+
+    typedef void (*StaticMetaCallFunction)(QObject *, QMetaObject::Call, int, void **);
+    struct Connection
+    {
+        QObject *sender;
+        QObject *receiver;
+        StaticMetaCallFunction callFunction;
+        // The next pointer for the singly-linked ConnectionList
+        Connection *nextConnectionList;
+        //senders linked list
+        Connection *next;
+        Connection **prev;
+        QBasicAtomicPointer<int> argumentTypes;
+        ushort method_offset;
+        ushort method_relative;
+        ushort connectionType : 3; // 0 == auto, 1 == direct, 2 == queued, 4 == blocking
+        ~Connection();
+        int method() const { return method_offset + method_relative; }
+    };
+    // ConnectionList is a singly-linked list
+    struct ConnectionList {
+        ConnectionList() : first(0), last(0) {}
+        Connection *first;
+        Connection *last;
+    };
+
+    struct Sender
+    {
+        QObject *sender;
+        int signal;
+        int ref;
+    };
+
+
+    QObjectPrivate(int version = QObjectPrivateVersion);
+    virtual ~QObjectPrivate();
+    void deleteChildren();
+
+    void setParent_helper(QObject *);
+    void moveToThread_helper();
+    void setThreadData_helper(QThreadData *currentData, QThreadData *targetData);
+    void _q_reregisterTimers(void *pointer);
+
+    bool isSender(const QObject *receiver, const char *signal) const;
+    QObjectList receiverList(const char *signal) const;
+    QObjectList senderList() const;
+
+    void addConnection(int signal, Connection *c);
+    void cleanConnectionLists();
+
+#ifdef QT3_SUPPORT
+    void sendPendingChildInsertedEvents();
+#endif
+
+    static inline Sender *setCurrentSender(QObject *receiver,
+                                    Sender *sender);
+    static inline void resetCurrentSender(QObject *receiver,
+                                   Sender *currentSender,
+                                   Sender *previousSender);
+#ifdef QT_JAMBI_BUILD
+    static int *setDeleteWatch(QObjectPrivate *d, int *newWatch);
+    static void resetDeleteWatch(QObjectPrivate *d, int *oldWatch, int deleteWatch);
+#endif
+    static void clearGuards(QObject *);
+
+    static QObjectPrivate *get(QObject *o) {
+        return o->d_func();
+    }
+
+    int signalIndex(const char *signalName) const;
+    inline bool isSignalConnected(uint signalIdx) const;
+
+public:
+    QString objectName;
+    ExtraData *extraData;    // extra data set by the user
+    QThreadData *threadData; // id of the thread that owns the object
+
+    QObjectConnectionListVector *connectionLists;
+
+    Connection *senders;     // linked list of connections connected to this object
+    Sender *currentSender;   // object currently activating the object
+    mutable quint32 connectedSignals[2];
+
+#ifdef QT3_SUPPORT
+    QVector< QWeakPointer<QObject> > pendingChildInsertedEvents;
+#else
+    // preserve binary compatibility with code compiled without Qt 3 support
+    // keeping the binary layout stable helps the Qt Creator debugger
+    void *unused;
+#endif
+
+    QList<QPointer<QObject> > eventFilters;
+    union {
+        QObject *currentChildBeingDeleted;
+        QAbstractDeclarativeData *declarativeData; //extra data used by the declarative module
+    };
+
+    // these objects are all used to indicate that a QObject was deleted
+    // plus QPointer, which keeps a separate list
+    QAtomicPointer<QtSharedPointer::ExternalRefCountData> sharedRefcount;
+#ifdef QT_JAMBI_BUILD
+    int *deleteWatch;
+#endif
+};
+
+
+/*! \internal
+
+  Returns true if the signal with index \a signal_index from object \a sender is connected.
+  Signals with indices above a certain range are always considered connected (see connectedSignals
+  in QObjectPrivate). If a signal spy is installed, all signals are considered connected.
+
+  \a signal_index must be the index returned by QObjectPrivate::signalIndex;
+*/
+inline bool QObjectPrivate::isSignalConnected(uint signal_index) const
+{
+    return signal_index >= sizeof(connectedSignals) * 8
+        || (connectedSignals[signal_index >> 5] & (1 << (signal_index & 0x1f))
+        || qt_signal_spy_callback_set.signal_begin_callback
+        || qt_signal_spy_callback_set.signal_end_callback);
+}
+
+inline QObjectPrivate::Sender *QObjectPrivate::setCurrentSender(QObject *receiver,
+                                                         Sender *sender)
+{
+    Sender *previousSender = receiver->d_func()->currentSender;
+    receiver->d_func()->currentSender = sender;
+    return previousSender;
+}
+
+inline void QObjectPrivate::resetCurrentSender(QObject *receiver,
+                                        Sender *currentSender,
+                                        Sender *previousSender)
+{
+    // ref is set to zero when this object is deleted during the metacall
+    if (currentSender->ref == 1)
+        receiver->d_func()->currentSender = previousSender;
+    // if we've recursed, we need to tell the caller about the objects deletion
+    if (previousSender)
+        previousSender->ref = currentSender->ref;
+}
+
+
+Q_DECLARE_TYPEINFO(QObjectPrivate::Connection, Q_MOVABLE_TYPE);
+Q_DECLARE_TYPEINFO(QObjectPrivate::Sender, Q_MOVABLE_TYPE);
+
+class QSemaphore;
+class Q_CORE_EXPORT QMetaCallEvent : public QEvent
+{
+public:
+    QMetaCallEvent(ushort method_offset, ushort method_relative, QObjectPrivate::StaticMetaCallFunction callFunction , const QObject *sender, int signalId,
+                   int nargs = 0, int *types = 0, void **args = 0, QSemaphore *semaphore = 0);
+    ~QMetaCallEvent();
+
+    inline int id() const { return method_offset_ + method_relative_; }
+    inline const QObject *sender() const { return sender_; }
+    inline int signalId() const { return signalId_; }
+    inline void **args() const { return args_; }
+
+    virtual void placeMetaCall(QObject *object);
+
+private:
+    const QObject *sender_;
+    int signalId_;
+    int nargs_;
+    int *types_;
+    void **args_;
+    QSemaphore *semaphore_;
+    QObjectPrivate::StaticMetaCallFunction callFunction_;
+    ushort method_offset_;
+    ushort method_relative_;
+};
+
+class QBoolBlocker
+{
+public:
+    inline QBoolBlocker(bool &b, bool value=true):block(b), reset(b){block = value;}
+    inline ~QBoolBlocker(){block = reset; }
+private:
+    bool &block;
+    bool reset;
+};
+
+void Q_CORE_EXPORT qDeleteInEventHandler(QObject *o);
+
+
+struct Q_CORE_EXPORT QAbstractDynamicMetaObject : public QMetaObject
+{
+    virtual ~QAbstractDynamicMetaObject() {}
+    virtual int metaCall(QMetaObject::Call, int _id, void **) { return _id; }
+    virtual int createProperty(const char *, const char *) { return -1; }
+};
+
+QT_END_NAMESPACE
+
+#endif // QOBJECT_P_H