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1 | /**************************************************************************** | - | ||||||||||||
2 | ** | - | ||||||||||||
3 | ** Copyright (C) 2016 The Qt Company Ltd. | - | ||||||||||||
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25 | ** GNU General Public License Usage | - | ||||||||||||
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36 | ** $QT_END_LICENSE$ | - | ||||||||||||
37 | ** | - | ||||||||||||
38 | ****************************************************************************/ | - | ||||||||||||
39 | - | |||||||||||||
40 | #ifndef QQMLABSTRACTBINDING_P_H | - | ||||||||||||
41 | #define QQMLABSTRACTBINDING_P_H | - | ||||||||||||
42 | - | |||||||||||||
43 | // | - | ||||||||||||
44 | // W A R N I N G | - | ||||||||||||
45 | // ------------- | - | ||||||||||||
46 | // | - | ||||||||||||
47 | // This file is not part of the Qt API. It exists purely as an | - | ||||||||||||
48 | // implementation detail. This header file may change from version to | - | ||||||||||||
49 | // version without notice, or even be removed. | - | ||||||||||||
50 | // | - | ||||||||||||
51 | // We mean it. | - | ||||||||||||
52 | // | - | ||||||||||||
53 | - | |||||||||||||
54 | #include <QtCore/qsharedpointer.h> | - | ||||||||||||
55 | #include <QtCore/qshareddata.h> | - | ||||||||||||
56 | #include <private/qtqmlglobal_p.h> | - | ||||||||||||
57 | #include <private/qqmlproperty_p.h> | - | ||||||||||||
58 | - | |||||||||||||
59 | QT_BEGIN_NAMESPACE | - | ||||||||||||
60 | - | |||||||||||||
61 | class QQmlObjectCreator; | - | ||||||||||||
62 | - | |||||||||||||
63 | class Q_QML_PRIVATE_EXPORT QQmlAbstractBinding | - | ||||||||||||
64 | { | - | ||||||||||||
65 | protected: | - | ||||||||||||
66 | QQmlAbstractBinding(); | - | ||||||||||||
67 | public: | - | ||||||||||||
68 | virtual ~QQmlAbstractBinding(); | - | ||||||||||||
69 | - | |||||||||||||
70 | typedef QExplicitlySharedDataPointer<QQmlAbstractBinding> Ptr; | - | ||||||||||||
71 | - | |||||||||||||
72 | virtual QString expression() const; | - | ||||||||||||
73 | - | |||||||||||||
74 | virtual bool isValueTypeProxy() const; | - | ||||||||||||
75 | - | |||||||||||||
76 | // Should return the encoded property index for the binding. Should return this value | - | ||||||||||||
77 | // even if the binding is not enabled or added to an object. | - | ||||||||||||
78 | // Encoding is: coreIndex | (valueTypeIndex << 16) | - | ||||||||||||
79 | QQmlPropertyIndex targetPropertyIndex() const { return m_targetIndex; } executed 1690160 times by 122 tests: return m_targetIndex; Executed by:
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80 | - | |||||||||||||
81 | // Should return the object for the binding. Should return this object even if the | - | ||||||||||||
82 | // binding is not enabled or added to the object. | - | ||||||||||||
83 | QObject *targetObject() const { return m_target.data(); } executed 4003999 times by 122 tests: return m_target.data(); Executed by:
| 4003999 | ||||||||||||
84 | - | |||||||||||||
85 | virtual void setEnabled(bool e, QQmlPropertyData::WriteFlags f = QQmlPropertyData::DontRemoveBinding) = 0; | - | ||||||||||||
86 | - | |||||||||||||
87 | void addToObject(); | - | ||||||||||||
88 | void removeFromObject(); | - | ||||||||||||
89 | - | |||||||||||||
90 | static void printBindingLoopError(QQmlProperty &prop); | - | ||||||||||||
91 | - | |||||||||||||
92 | inline QQmlAbstractBinding *nextBinding() const; | - | ||||||||||||
93 | - | |||||||||||||
94 | inline bool canUseAccessor() const | - | ||||||||||||
95 | { return m_nextBinding.flag2(); } executed 891426 times by 122 tests: return m_nextBinding.flag2(); Executed by:
| 891426 | ||||||||||||
96 | - | |||||||||||||
97 | struct RefCount { | - | ||||||||||||
98 | RefCount() {} | - | ||||||||||||
99 | int refCount = 0; | - | ||||||||||||
100 | void ref() { ++refCount; } executed 3462353 times by 122 tests: end of block Executed by:
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101 | int deref() { return --refCount; } executed 3036170 times by 122 tests: return --refCount; Executed by:
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102 | operator int() const { return refCount; } executed 514924 times by 121 tests: return refCount; Executed by:
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103 | }; | - | ||||||||||||
104 | RefCount ref; | - | ||||||||||||
105 | - | |||||||||||||
106 | protected: | - | ||||||||||||
107 | friend class QQmlData; | - | ||||||||||||
108 | friend class QQmlValueTypeProxyBinding; | - | ||||||||||||
109 | friend class QQmlObjectCreator; | - | ||||||||||||
110 | - | |||||||||||||
111 | inline void setAddedToObject(bool v); | - | ||||||||||||
112 | inline bool isAddedToObject() const; | - | ||||||||||||
113 | - | |||||||||||||
114 | inline void setNextBinding(QQmlAbstractBinding *); | - | ||||||||||||
115 | - | |||||||||||||
116 | QQmlPropertyIndex m_targetIndex; | - | ||||||||||||
117 | - | |||||||||||||
118 | // Pointer is the target object to which the binding binds | - | ||||||||||||
119 | // flag1 is the updating flag | - | ||||||||||||
120 | // flag2 is the enabled flag | - | ||||||||||||
121 | QFlagPointer<QObject> m_target; | - | ||||||||||||
122 | - | |||||||||||||
123 | // Pointer to the next binding in the linked list of bindings. | - | ||||||||||||
124 | // flag1 is used for addedToObject | - | ||||||||||||
125 | // flag2 indicates if an accessor is can be used (i.e. there is no interceptor on the target) | - | ||||||||||||
126 | QFlagPointer<QQmlAbstractBinding> m_nextBinding; | - | ||||||||||||
127 | }; | - | ||||||||||||
128 | - | |||||||||||||
129 | void QQmlAbstractBinding::setAddedToObject(bool v) | - | ||||||||||||
130 | { | - | ||||||||||||
131 | m_nextBinding.setFlagValue(v); | - | ||||||||||||
132 | } executed 566203 times by 122 tests: end of block Executed by:
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133 | - | |||||||||||||
134 | bool QQmlAbstractBinding::isAddedToObject() const | - | ||||||||||||
135 | { | - | ||||||||||||
136 | return m_nextBinding.flag(); executed 3079131 times by 122 tests: return m_nextBinding.flag(); Executed by:
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137 | } | - | ||||||||||||
138 | - | |||||||||||||
139 | QQmlAbstractBinding *QQmlAbstractBinding::nextBinding() const | - | ||||||||||||
140 | { | - | ||||||||||||
141 | return m_nextBinding.data(); executed 569886 times by 122 tests: return m_nextBinding.data(); Executed by:
| 569886 | ||||||||||||
142 | } | - | ||||||||||||
143 | - | |||||||||||||
144 | void QQmlAbstractBinding::setNextBinding(QQmlAbstractBinding *b) | - | ||||||||||||
145 | { | - | ||||||||||||
146 | if (b)
| 125523-439415 | ||||||||||||
147 | b->ref.ref(); executed 125523 times by 69 tests: b->ref.ref(); Executed by:
| 125523 | ||||||||||||
148 | if (m_nextBinding.data() && !m_nextBinding->ref.deref())
| 0-559317 | ||||||||||||
149 | delete m_nextBinding.data(); never executed: delete m_nextBinding.data(); | 0 | ||||||||||||
150 | m_nextBinding = b; | - | ||||||||||||
151 | } executed 564938 times by 122 tests: end of block Executed by:
| 564938 | ||||||||||||
152 | - | |||||||||||||
153 | QT_END_NAMESPACE | - | ||||||||||||
154 | - | |||||||||||||
155 | #endif // QQMLABSTRACTBINDING_P_H | - | ||||||||||||
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