def set_up_machine(self):
self.machine = QStateMachine(self)
self.welcome = self._make_welcome()
self.machine.setInitialState(self.welcome)
dead = QFinalState(self.machine)
death = QEventTransition(self, QEvent.Close)
death.setTargetState(dead)
self.machine.addTransition(death)
def setup(self):
self.machine = QStateMachine(self)
self.run = QState(self.machine)
abort = self._make_abort()
transition = QEventTransition(self, QEvent.Close)
transition.setTargetState(abort)
self.run.addTransition(transition)
welcome = self._make_welcome()
welcome.entered.connect(self._handle_welcome_entered)
self.machine.setInitialState(self.run)
self.run.setInitialState(welcome)
self.machine.start()
def testBasic(self):
'''QStateMachine.configuration converting QSet to python set'''
machine = QStateMachine()
s1 = QState()
machine.addState(s1)
machine.setInitialState(s1)
machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
configuration = machine.configuration()
self.assertTrue(isinstance(configuration, set))
self.assertTrue(s1 in configuration)
def testBasic(self):
self.machine = QStateMachine()
s1 = QState()
s2 = QState()
s3 = QFinalState()
QObject.connect(self.machine, SIGNAL("started()"), self.cb)
self.anim = QParallelAnimationGroup()
self.machine.addState(s1)
self.machine.addState(s2)
self.machine.addState(s3)
self.machine.setInitialState(s1)
self.machine.addDefaultAnimation(self.anim)
self.machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
def testBasic(self):
'''QStateMachine.configuration converting QSet to python set'''
machine = QStateMachine()
s1 = QState()
machine.addState(s1)
machine.setInitialState(s1)
machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
configuration = machine.configuration()
self.assert_(isinstance(configuration, set))
self.assert_(s1 in configuration)
class QStateMachineTest(UsesQCoreApplication):
def cb(self, *args):
self.assertEqual(self.machine.defaultAnimations(), [self.anim])
def testBasic(self):
self.machine = QStateMachine()
s1 = QState()
s2 = QState()
s3 = QFinalState()
QObject.connect(self.machine, SIGNAL("started()"), self.cb)
self.anim = QParallelAnimationGroup()
self.machine.addState(s1)
self.machine.addState(s2)
self.machine.addState(s3)
self.machine.setInitialState(s1)
self.machine.addDefaultAnimation(self.anim)
self.machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
class QStateMachineTest(UsesQCoreApplication):
def cb(self, *args):
self.assertEqual(self.machine.defaultAnimations(), [self.anim])
def testBasic(self):
self.machine = QStateMachine()
s1 = QState()
s2 = QState()
s3 = QFinalState()
QObject.connect(self.machine, SIGNAL("started()"), self.cb)
self.anim = QParallelAnimationGroup()
self.machine.addState(s1)
self.machine.addState(s2)
self.machine.addState(s3)
self.machine.setInitialState(s1)
self.machine.addDefaultAnimation(self.anim)
self.machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
def testBasic(self):
self.machine = QStateMachine()
s1 = QState()
s2 = QState()
s3 = QFinalState()
QObject.connect(self.machine, SIGNAL("started()"), self.cb)
self.anim = QParallelAnimationGroup()
self.machine.addState(s1)
self.machine.addState(s2)
self.machine.addState(s3)
self.machine.setInitialState(s1)
self.machine.addDefaultAnimation(self.anim)
self.machine.start()
QTimer.singleShot(100, self.app.quit)
self.app.exec_()
def testCase(self):
check = QCheckBox()
check.setTristate(True)
s1 = QState()
s2 = QState()
t1 = CheckedTransition(check)
t1.setTargetState(s2)
s1.addTransition(t1)
machine = QStateMachine()
machine.addState(s1)
machine.addState(s2)
machine.setInitialState(s1)
machine.start()
check.stateChanged[int].emit(1)
check.show()
self.app.exec_()
self.assertTrue(t1.eventTested)
def testCase(self):
check = QCheckBox()
check.setTristate(True)
s1 = QState()
s2 = QState()
t1 = CheckedTransition(check)
t1.setTargetState(s2)
s1.addTransition(t1)
machine = QStateMachine()
machine.addState(s1)
machine.addState(s2)
machine.setInitialState(s1)
machine.start()
check.stateChanged[int].emit(1)
check.show()
self.app.exec_()
self.assert_(t1.eventTested)
from PySide2.QtCore import QStateMachine, QState mach = QStateMachine() state = QState(mach) print(state.machine())
class StateMachineWidget(QDockWidget):
"""A widget with a state machine."""
def __init__(self, window_title, parent):
"""Initializes class.
Args:
window_title (str)
parent (QMainWindow)
"""
super().__init__(window_title, parent)
self.setObjectName(window_title)
self.label_msg = QLabel(self)
self.label_msg.setFont(QFont("arial,helvetica", 12))
self.label_msg.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
self.label_msg.setWordWrap(True)
self.button_left = QPushButton(self)
self.button_right = QPushButton(self)
self.label_loader = QLabel(self)
self.label_loader.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
movie = QMovie(":/animated_gifs/ajax-loader.gif")
movie.start()
self.label_loader.setMovie(movie)
button_container = QWidget(self)
button_layout = QHBoxLayout(button_container)
button_layout.addStretch()
button_layout.addWidget(self.button_left)
button_layout.addWidget(self.button_right)
button_layout.addStretch()
widget = QWidget(self)
layout = QVBoxLayout(widget)
layout.addStretch()
layout.addWidget(self.label_msg)
layout.addStretch()
layout.addWidget(self.label_loader)
layout.addStretch()
layout.addWidget(button_container)
self.setWidget(widget)
self.machine = None
self.welcome = None
self._welcome_text = "<html><p>Welcome!</p></html>"
self._current_state = None
self.setAttribute(Qt.WA_DeleteOnClose)
def is_running(self):
return self.machine and self.machine.isRunning()
def show(self):
self.setFloating(False)
self.parent().addDockWidget(Qt.TopDockWidgetArea, self)
if not self.isVisible():
self.set_up_machine()
self.machine.start()
super().show()
def _make_state(self, name):
s = QState(self.machine)
s.assignProperty(self, "current_state", name)
return s
def _make_welcome(self):
welcome = self._make_state("welcome")
begin = QState(welcome)
finalize = QFinalState(welcome)
welcome.setInitialState(begin)
begin.assignProperty(self.label_msg, "text", self._welcome_text)
begin.assignProperty(self.button_right, "text", "Start")
begin.assignProperty(self.button_right, "visible", True)
begin.assignProperty(self.label_loader, "visible", False)
begin.assignProperty(self.button_left, "visible", False)
begin.addTransition(self.button_right.clicked, finalize)
return welcome
def set_up_machine(self):
self.machine = QStateMachine(self)
self.welcome = self._make_welcome()
self.machine.setInitialState(self.welcome)
dead = QFinalState(self.machine)
death = QEventTransition(self, QEvent.Close)
death.setTargetState(dead)
self.machine.addTransition(death)
def get_current_state(self):
return self._current_state
def set_current_state(self, state):
self._current_state = state
current_state = Property(str, get_current_state, set_current_state)
class LiveDemo(QDockWidget):
"""A widget for showing live demonstrations."""
_overlay_color = QColor(255, 140, 0, 128)
_tutorial_data_path = os.path.join(APPLICATION_PATH, "../tutorial")
def __init__(self, window_title, parent):
"""Initializes class.
Args:
window_title (str)
parent (QMainWindow)
"""
super().__init__(window_title, parent)
self.setObjectName(window_title)
self.label_msg = QLabel(self)
self.label_msg.setFont(QFont("arial,helvetica", 12))
self.label_msg.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
self.label_msg.setWordWrap(True)
self.button_left = QPushButton(self)
self.button_right = QPushButton(self)
button_container = QWidget(self)
button_layout = QHBoxLayout(button_container)
button_layout.addStretch()
button_layout.addWidget(self.button_left)
button_layout.addWidget(self.button_right)
button_layout.addStretch()
widget = QWidget(self)
layout = QVBoxLayout(widget)
layout.addStretch()
layout.addWidget(self.label_msg)
layout.addStretch()
layout.addWidget(button_container)
self.setWidget(widget)
self.hide()
self.machine = None
self.run = None
def is_running(self):
return self.machine and self.machine.isRunning()
def show(self):
self.setFloating(False)
self.parent().addDockWidget(Qt.TopDockWidgetArea, self)
self.setup()
super().show()
def _make_welcome(self):
welcome = QState(self.run)
begin = QState(welcome)
finalize = QFinalState(welcome)
welcome.setInitialState(begin)
begin.assignProperty(self.label_msg, "text", "Welcome!")
begin.assignProperty(self.button_right, "text", "Start")
begin.assignProperty(self.button_right, "visible", True)
begin.assignProperty(self.button_left, "visible", False)
begin.addTransition(self.button_right.clicked, finalize)
return welcome
def _make_abort(self):
abort = QState(self.run)
dead = QFinalState(self.machine)
abort.addTransition(dead)
return abort
def setup(self):
self.machine = QStateMachine(self)
self.run = QState(self.machine)
abort = self._make_abort()
transition = QEventTransition(self, QEvent.Close)
transition.setTargetState(abort)
self.run.addTransition(transition)
welcome = self._make_welcome()
welcome.entered.connect(self._handle_welcome_entered)
self.machine.setInitialState(self.run)
self.run.setInitialState(welcome)
self.machine.start()
def _handle_welcome_entered(self):
raise NotImplementedError()