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

1 files changed, 191 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativedata_p.h b/src/declarative/qml/qdeclarativedata_p.h
new file mode 100644
index 0000000000..33458dc2f4
--- /dev/null
+++ b/src/declarative/qml/qdeclarativedata_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 QtDeclarative 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 QDECLARATIVEDATA_P_H
+#define QDECLARATIVEDATA_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtScript/qscriptvalue.h>
+#include <private/qobject_p.h>
+#include "private/qdeclarativeguard_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeCompiledData;
+class QDeclarativeAbstractBinding;
+class QDeclarativeContext;
+class QDeclarativePropertyCache;
+class QDeclarativeContextData;
+class QDeclarativeNotifier;
+class QDeclarativeDataExtended;
+// This class is structured in such a way, that simply zero'ing it is the
+// default state for elemental object allocations.  This is crucial in the
+// workings of the QDeclarativeInstruction::CreateSimpleObject instruction.
+// Don't change anything here without first considering that case!
+class Q_AUTOTEST_EXPORT QDeclarativeData : public QAbstractDeclarativeData
+{
+public:
+    QDeclarativeData()
+        : ownMemory(true), ownContext(false), indestructible(true), explicitIndestructibleSet(false), 
+          context(0), outerContext(0), bindings(0), nextContextObject(0), prevContextObject(0), bindingBitsSize(0), 
+          bindingBits(0), lineNumber(0), columnNumber(0), deferredComponent(0), deferredIdx(0), 
+          scriptValue(0), objectDataRefCount(0), propertyCache(0), guards(0), extendedData(0) {
+          init(); 
+      }
+
+    static inline void init() {
+        QAbstractDeclarativeData::destroyed = destroyed;
+        QAbstractDeclarativeData::parentChanged = parentChanged;
+        QAbstractDeclarativeData::objectNameChanged = objectNameChanged;
+    }
+
+    static void destroyed(QAbstractDeclarativeData *, QObject *);
+    static void parentChanged(QAbstractDeclarativeData *, QObject *, QObject *);
+    static void objectNameChanged(QAbstractDeclarativeData *, QObject *);
+
+    void destroyed(QObject *);
+    void parentChanged(QObject *, QObject *);
+    void objectNameChanged(QObject *);
+
+    void setImplicitDestructible() {
+        if (!explicitIndestructibleSet) indestructible = false;
+    }
+
+    quint32 ownMemory:1;
+    quint32 ownContext:1;
+    quint32 indestructible:1;
+    quint32 explicitIndestructibleSet:1;
+    quint32 dummy:28;
+
+    // The context that created the C++ object
+    QDeclarativeContextData *context; 
+    // The outermost context in which this object lives
+    QDeclarativeContextData *outerContext;
+
+    QDeclarativeAbstractBinding *bindings;
+
+    // Linked list for QDeclarativeContext::contextObjects
+    QDeclarativeData *nextContextObject;
+    QDeclarativeData**prevContextObject;
+
+    int bindingBitsSize;
+    quint32 *bindingBits; 
+    bool hasBindingBit(int) const;
+    void clearBindingBit(int);
+    void setBindingBit(QObject *obj, int);
+
+    ushort lineNumber;
+    ushort columnNumber;
+
+    QDeclarativeCompiledData *deferredComponent; // Can't this be found from the context?
+    unsigned int deferredIdx;
+
+    // ### Can we make this QScriptValuePrivate so we incur no additional allocation
+    // cost?
+    QScriptValue *scriptValue;
+    quint32 objectDataRefCount;
+    QDeclarativePropertyCache *propertyCache;
+
+    QDeclarativeGuard<QObject> *guards;
+
+    static QDeclarativeData *get(const QObject *object, bool create = false) {
+        QObjectPrivate *priv = QObjectPrivate::get(const_cast<QObject *>(object));
+        if (priv->wasDeleted) {
+            Q_ASSERT(!create);
+            return 0;
+        } else if (priv->declarativeData) {
+            return static_cast<QDeclarativeData *>(priv->declarativeData);
+        } else if (create) {
+            priv->declarativeData = new QDeclarativeData;
+            return static_cast<QDeclarativeData *>(priv->declarativeData);
+        } else {
+            return 0;
+        }
+    }
+
+    bool hasExtendedData() const { return extendedData != 0; }
+    QDeclarativeNotifier *objectNameNotifier() const;
+    QHash<int, QObject *> *attachedProperties() const;
+
+private:
+    // For objectNameNotifier and attachedProperties
+    mutable QDeclarativeDataExtended *extendedData;
+};
+
+template<class T>
+void QDeclarativeGuard<T>::addGuard()
+{
+    Q_ASSERT(!prev);
+
+    if (QObjectPrivate::get(o)->wasDeleted) 
+        return;
+
+    QDeclarativeData *data = QDeclarativeData::get(o, true);
+    next = data->guards;
+    if (next) reinterpret_cast<QDeclarativeGuard<T> *>(next)->prev = &next;
+    data->guards = reinterpret_cast<QDeclarativeGuard<QObject> *>(this);
+    prev = &data->guards;
+}
+
+template<class T>
+void QDeclarativeGuard<T>::remGuard()
+{
+    Q_ASSERT(prev);
+
+    if (next) reinterpret_cast<QDeclarativeGuard<T> *>(next)->prev = prev;
+    *prev = next;
+    next = 0;
+    prev = 0;
+}
+
+QT_END_NAMESPACE
+
+#endif // QDECLARATIVEDATA_P_H