1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtQuick1 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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>
QT_BEGIN_NAMESPACE
class QDeclarativeGuardImpl;
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 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;
QDeclarativeGuardImpl *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;
};
QT_END_NAMESPACE
#endif // QDECLARATIVEDATA_P_H
|
