File indexing completed on 2025-01-18 10:07:17
0001
0002
0003
0004 #ifndef QBINDINGSTORAGE_H
0005 #define QBINDINGSTORAGE_H
0006
0007 #include <QtCore/qglobal.h>
0008 #include <QtCore/qnamespace.h>
0009
0010 QT_BEGIN_NAMESPACE
0011
0012 template <typename Class, typename T, auto Offset, auto Setter, auto Signal, auto Getter>
0013 class QObjectCompatProperty;
0014 struct QPropertyDelayedNotifications;
0015 class QUntypedPropertyData;
0016
0017 namespace QtPrivate {
0018
0019 class QPropertyBindingData;
0020 struct BindingEvaluationState;
0021 struct CompatPropertySafePoint;
0022 }
0023
0024 struct QBindingStatus
0025 {
0026 QtPrivate::BindingEvaluationState *currentlyEvaluatingBinding = nullptr;
0027 QtPrivate::CompatPropertySafePoint *currentCompatProperty = nullptr;
0028 Qt::HANDLE threadId = nullptr;
0029 QPropertyDelayedNotifications *groupUpdateData = nullptr;
0030 };
0031
0032 namespace QtPrivate {
0033 struct QBindingStatusAccessToken;
0034 Q_AUTOTEST_EXPORT QBindingStatus *getBindingStatus(QBindingStatusAccessToken);
0035 }
0036
0037
0038 struct QBindingStorageData;
0039 class Q_CORE_EXPORT QBindingStorage
0040 {
0041 mutable QBindingStorageData *d = nullptr;
0042 QBindingStatus *bindingStatus = nullptr;
0043
0044 template<typename Class, typename T, auto Offset, auto Setter, auto Signal, auto Getter>
0045 friend class QObjectCompatProperty;
0046 friend class QObjectPrivate;
0047 friend class QtPrivate::QPropertyBindingData;
0048 public:
0049 QBindingStorage();
0050 ~QBindingStorage();
0051
0052 bool isEmpty() { return !d; }
0053 bool isValid() const noexcept { return bindingStatus; }
0054
0055 const QBindingStatus *status(QtPrivate::QBindingStatusAccessToken) const;
0056
0057 void registerDependency(const QUntypedPropertyData *data) const
0058 {
0059 if (!bindingStatus || !bindingStatus->currentlyEvaluatingBinding)
0060 return;
0061 registerDependency_helper(data);
0062 }
0063 QtPrivate::QPropertyBindingData *bindingData(const QUntypedPropertyData *data) const
0064 {
0065 if (!d)
0066 return nullptr;
0067 return bindingData_helper(data);
0068 }
0069
0070 #if QT_CORE_REMOVED_SINCE(6, 2)
0071 void maybeUpdateBindingAndRegister(const QUntypedPropertyData *data) const { registerDependency(data); }
0072 #endif
0073
0074 QtPrivate::QPropertyBindingData *bindingData(QUntypedPropertyData *data, bool create)
0075 {
0076 if (!d && !create)
0077 return nullptr;
0078 return bindingData_helper(data, create);
0079 }
0080 private:
0081 void reinitAfterThreadMove();
0082 void clear();
0083 void registerDependency_helper(const QUntypedPropertyData *data) const;
0084 #if QT_CORE_REMOVED_SINCE(6, 2)
0085
0086 void maybeUpdateBindingAndRegister_helper(const QUntypedPropertyData *data) const;
0087 #endif
0088 QtPrivate::QPropertyBindingData *bindingData_helper(const QUntypedPropertyData *data) const;
0089 QtPrivate::QPropertyBindingData *bindingData_helper(QUntypedPropertyData *data, bool create);
0090 };
0091
0092 QT_END_NAMESPACE
0093
0094 #endif