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-rw-r--r--examples/qml/tutorials/extending-qml-advanced/binding/birthdayparty.py83
1 files changed, 83 insertions, 0 deletions
diff --git a/examples/qml/tutorials/extending-qml-advanced/binding/birthdayparty.py b/examples/qml/tutorials/extending-qml-advanced/binding/birthdayparty.py
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+++ b/examples/qml/tutorials/extending-qml-advanced/binding/birthdayparty.py
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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import QDate, QObject, ClassInfo, Property, QTime, Signal
+from PySide6.QtQml import QmlAnonymous, QmlAttached, QmlElement, ListProperty
+
+from person import Person
+
+
+# To be used on the @QmlElement decorator
+# (QML_IMPORT_MINOR_VERSION is optional)
+QML_IMPORT_NAME = "People"
+QML_IMPORT_MAJOR_VERSION = 1
+
+
+@QmlAnonymous
+class BirthdayPartyAttached(QObject):
+
+ rsvp_changed = Signal()
+
+ def __init__(self, parent=None):
+ super().__init__(parent)
+ self._rsvp = QDate()
+
+ @Property(QDate, notify=rsvp_changed)
+ def rsvp(self):
+ return self._rsvp
+
+ @rsvp.setter
+ def rsvp(self, d):
+ if self._rsvp != d:
+ self._rsvp = d
+ self.rsvp_changed.emit()
+
+
+@QmlElement
+@ClassInfo(DefaultProperty="guests")
+@QmlAttached(BirthdayPartyAttached)
+class BirthdayParty(QObject):
+
+ partyStarted = Signal(QTime)
+ host_changed = Signal()
+
+ def __init__(self, parent=None):
+ super().__init__(parent)
+ self._host = None
+ self._guests = []
+
+ def startParty(self):
+ self.partyStarted.emit(QTime.currentTime())
+
+ @Property(Person, notify=host_changed)
+ def host(self):
+ return self._host
+
+ @host.setter
+ def host(self, h):
+ if self._host != h:
+ self._host = h
+ self.host_changed.emit()
+
+ @Property(str)
+ def announcement(self):
+ return ""
+
+ @announcement.setter
+ def announcement(self, a):
+ print(a)
+
+ def guest(self, n):
+ return self._guests[n]
+
+ def guestCount(self):
+ return len(self._guests)
+
+ def appendGuest(self, guest):
+ self._guests.append(guest)
+
+ @staticmethod
+ def qmlAttachedProperties(self, o):
+ return BirthdayPartyAttached(o)
+
+ guests = ListProperty(Person, appendGuest)