| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QABSTRACTTRANSITION_H |
| 5 | #define QABSTRACTTRANSITION_H |
| 6 | |
| 7 | #include <QtCore/qlist.h> |
| 8 | #include <QtCore/qobject.h> |
| 9 | |
| 10 | #include <QtStateMachine/qstatemachineglobal.h> |
| 11 | |
| 12 | QT_BEGIN_NAMESPACE |
| 13 | |
| 14 | class QEvent; |
| 15 | class QAbstractState; |
| 16 | class QState; |
| 17 | class QStateMachine; |
| 18 | |
| 19 | #if QT_CONFIG(animation) |
| 20 | class QAbstractAnimation; |
| 21 | #endif |
| 22 | |
| 23 | class QAbstractTransitionPrivate; |
| 24 | class Q_STATEMACHINE_EXPORT QAbstractTransition : public QObject |
| 25 | { |
| 26 | Q_OBJECT |
| 27 | Q_PROPERTY(QState* sourceState READ sourceState) |
| 28 | Q_PROPERTY(QAbstractState* targetState READ targetState WRITE setTargetState NOTIFY targetStateChanged) |
| 29 | Q_PROPERTY(QList<QAbstractState*> targetStates READ targetStates WRITE setTargetStates NOTIFY targetStatesChanged) |
| 30 | Q_PROPERTY(TransitionType transitionType READ transitionType WRITE setTransitionType |
| 31 | BINDABLE bindableTransitionType REVISION(1, 1)) |
| 32 | public: |
| 33 | enum TransitionType { |
| 34 | ExternalTransition, |
| 35 | InternalTransition |
| 36 | }; |
| 37 | Q_ENUM(TransitionType) |
| 38 | |
| 39 | QAbstractTransition(QState *sourceState = nullptr); |
| 40 | virtual ~QAbstractTransition(); |
| 41 | |
| 42 | QState *sourceState() const; |
| 43 | QAbstractState *targetState() const; |
| 44 | void setTargetState(QAbstractState* target); |
| 45 | QList<QAbstractState*> targetStates() const; |
| 46 | void setTargetStates(const QList<QAbstractState*> &targets); |
| 47 | |
| 48 | TransitionType transitionType() const; |
| 49 | void setTransitionType(TransitionType type); |
| 50 | QBindable<QAbstractTransition::TransitionType> bindableTransitionType(); |
| 51 | |
| 52 | QStateMachine *machine() const; |
| 53 | |
| 54 | #if QT_CONFIG(animation) |
| 55 | void addAnimation(QAbstractAnimation *animation); |
| 56 | void removeAnimation(QAbstractAnimation *animation); |
| 57 | QList<QAbstractAnimation*> animations() const; |
| 58 | #endif |
| 59 | |
| 60 | Q_SIGNALS: |
| 61 | void triggered(QPrivateSignal); |
| 62 | void targetStateChanged(QPrivateSignal); |
| 63 | void targetStatesChanged(QPrivateSignal); |
| 64 | |
| 65 | protected: |
| 66 | virtual bool eventTest(QEvent *event) = 0; |
| 67 | |
| 68 | virtual void onTransition(QEvent *event) = 0; |
| 69 | |
| 70 | bool event(QEvent *e) override; |
| 71 | |
| 72 | protected: |
| 73 | QAbstractTransition(QAbstractTransitionPrivate &dd, QState *parent); |
| 74 | |
| 75 | private: |
| 76 | Q_DISABLE_COPY(QAbstractTransition) |
| 77 | Q_DECLARE_PRIVATE(QAbstractTransition) |
| 78 | }; |
| 79 | |
| 80 | QT_END_NAMESPACE |
| 81 | |
| 82 | #endif |
| 83 |