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39
40#ifndef QSIGNALTRANSITION_H
41#define QSIGNALTRANSITION_H
42
43#include <QtCore/qabstracttransition.h>
44#include <QtCore/qmetaobject.h>
45
46QT_REQUIRE_CONFIG(statemachine);
47
48QT_BEGIN_NAMESPACE
49
50class QSignalTransitionPrivate;
51class Q_CORE_EXPORT QSignalTransition : public QAbstractTransition
52{
53 Q_OBJECT
54 Q_PROPERTY(QObject* senderObject READ senderObject WRITE setSenderObject NOTIFY senderObjectChanged)
55 Q_PROPERTY(QByteArray signal READ signal WRITE setSignal NOTIFY signalChanged)
56
57public:
58 QSignalTransition(QState *sourceState = nullptr);
59 QSignalTransition(const QObject *sender, const char *signal,
60 QState *sourceState = nullptr);
61#ifdef Q_QDOC
62 template<typename PointerToMemberFunction>
63 QSignalTransition(const QObject *object, PointerToMemberFunction signal,
64 QState *sourceState = nullptr);
65#elif defined(Q_COMPILER_DELEGATING_CONSTRUCTORS)
66 template <typename Func>
67 QSignalTransition(const typename QtPrivate::FunctionPointer<Func>::Object *obj,
68 Func sig, QState *srcState = nullptr)
69 : QSignalTransition(obj, QMetaMethod::fromSignal(sig).methodSignature().constData(), srcState)
70 {
71 }
72#endif
73
74 ~QSignalTransition();
75
76 QObject *senderObject() const;
77 void setSenderObject(const QObject *sender);
78
79 QByteArray signal() const;
80 void setSignal(const QByteArray &signal);
81
82protected:
83 bool eventTest(QEvent *event) override;
84 void onTransition(QEvent *event) override;
85
86 bool event(QEvent *e) override;
87
88Q_SIGNALS:
89 void senderObjectChanged(QPrivateSignal);
90 void signalChanged(QPrivateSignal);
91
92private:
93 Q_DISABLE_COPY(QSignalTransition)
94 Q_DECLARE_PRIVATE(QSignalTransition)
95};
96
97QT_END_NAMESPACE
98
99#endif
100

source code of qtbase/src/corelib/statemachine/qsignaltransition.h