QFinalState Class
QFinalState 类提供了一种最终状态。更多
| Header： | #include <QFinalState> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS StateMachine)target_link_libraries(mytarget PRIVATE Qt6::StateMachine) |
| qmake： | QT += statemachine |
| 继承： | QAbstractState |
公共函数
| QFinalState(QState *parent = nullptr) | |
| virtual | ~QFinalState() |
重实现的保护函数
| virtual bool | event(QEvent *e) override |
| virtual void | onEntry(QEvent *event) override |
| virtual void | onExit(QEvent *event) override |
详细说明
最终状态用于告知QStateMachine （部分）工作已经完成。当进入最终顶层状态时，状态机的finished() 信号就会发出。一般来说，当进入最终子状态（QState 的子状态）时，父状态的finished() 信号就会发出。QFinalState 是Qt State Machine Framework 的一部分。
要使用最终状态，需要创建一个 QFinalState 对象，并从另一个状态向其添加过渡。举例说明
QPushButton button; QStateMachine machine; QState *s1 = new QState(); QFinalState *s2 = new QFinalState(); s1->addTransition(&button, SIGNAL(clicked()), s2); machine.addState(s1); machine.addState(s2); QObject::connect(&machine, SIGNAL(finished()), QApplication::instance(), SLOT(quit())); machine.setInitialState(s1); machine.start();
另请参阅 QState::finished().
成员函数文档
QFinalState::QFinalState(QState *parent = nullptr)
用给定的parent 状态构造一个新的 QFinalState 对象。
[virtual noexcept] QFinalState::~QFinalState()
摧毁最终状态。
[override virtual protected] bool QFinalState::event(QEvent *e)
重实现：QAbstractState::event(QEvent *e)。
[override virtual protected] void QFinalState::onEntry(QEvent *event)
重实现：QAbstractState::onEntry(QEvent *event).
[override virtual protected] void QFinalState::onExit(QEvent *event)
重实现：QAbstractState::onExit(QEvent *event).
© 2025 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.
