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39 | |
40 | #ifndef QHISTORYSTATE_H |
41 | #define QHISTORYSTATE_H |
42 | |
43 | #include <QtCore/qabstractstate.h> |
44 | |
45 | QT_REQUIRE_CONFIG(statemachine); |
46 | |
47 | QT_BEGIN_NAMESPACE |
48 | |
49 | class QAbstractTransition; |
50 | class QHistoryStatePrivate; |
51 | class Q_CORE_EXPORT QHistoryState : public QAbstractState |
52 | { |
53 | Q_OBJECT |
54 | Q_PROPERTY(QAbstractState* defaultState READ defaultState WRITE setDefaultState NOTIFY defaultStateChanged) |
55 | Q_PROPERTY(QAbstractTransition* defaultTransition READ defaultTransition WRITE setDefaultTransition NOTIFY defaultTransitionChanged) |
56 | Q_PROPERTY(HistoryType historyType READ historyType WRITE setHistoryType NOTIFY historyTypeChanged) |
57 | public: |
58 | enum HistoryType { |
59 | ShallowHistory, |
60 | DeepHistory |
61 | }; |
62 | Q_ENUM(HistoryType) |
63 | |
64 | QHistoryState(QState *parent = nullptr); |
65 | QHistoryState(HistoryType type, QState *parent = nullptr); |
66 | ~QHistoryState(); |
67 | |
68 | QAbstractTransition *defaultTransition() const; |
69 | void setDefaultTransition(QAbstractTransition *transition); |
70 | |
71 | QAbstractState *defaultState() const; |
72 | void setDefaultState(QAbstractState *state); |
73 | |
74 | HistoryType historyType() const; |
75 | void setHistoryType(HistoryType type); |
76 | |
77 | Q_SIGNALS: |
78 | void defaultTransitionChanged(QPrivateSignal); |
79 | void defaultStateChanged(QPrivateSignal); |
80 | void historyTypeChanged(QPrivateSignal); |
81 | |
82 | protected: |
83 | void onEntry(QEvent *event) override; |
84 | void onExit(QEvent *event) override; |
85 | |
86 | bool event(QEvent *e) override; |
87 | |
88 | private: |
89 | Q_DISABLE_COPY(QHistoryState) |
90 | Q_DECLARE_PRIVATE(QHistoryState) |
91 | }; |
92 | |
93 | QT_END_NAMESPACE |
94 | |
95 | #endif |
96 | |