diff options
Diffstat (limited to 'examples/qml/tutorials/extending-qml-advanced/advanced6-Property-value-source/birthdayparty.py')
-rw-r--r-- | examples/qml/tutorials/extending-qml-advanced/advanced6-Property-value-source/birthdayparty.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/examples/qml/tutorials/extending-qml-advanced/advanced6-Property-value-source/birthdayparty.py b/examples/qml/tutorials/extending-qml-advanced/advanced6-Property-value-source/birthdayparty.py new file mode 100644 index 000000000..eacb5201d --- /dev/null +++ b/examples/qml/tutorials/extending-qml-advanced/advanced6-Property-value-source/birthdayparty.py @@ -0,0 +1,89 @@ +# 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, final=True) + 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): + + announcement_changed = Signal() + host_changed = Signal() + guests_changed = Signal() + partyStarted = Signal(QTime) + + def __init__(self, parent=None): + super().__init__(parent) + self._announcement = "" + self._host = None + self._guests = [] + + def startParty(self): + self.partyStarted.emit(QTime.currentTime()) + + @Property(Person, notify=host_changed, final=True) + 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, notify=announcement_changed, final=True) + def announcement(self): + return self._announcement + + @announcement.setter + def announcement(self, a): + if self._announcement != a: + self._announcement = a + self.announcement_changed.emit() + 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) + self.guests_changed.emit() + + @staticmethod + def qmlAttachedProperties(self, o): + return BirthdayPartyAttached(o) + + guests = ListProperty(Person, appendGuest, notify=guests_changed, final=True) |