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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 QTimer, Property, Signal, Slot
from PySide6.QtQml import QmlElement, QPyQmlPropertyValueSource
# To be used on the @QmlElement decorator
# (QML_IMPORT_MINOR_VERSION is optional)
QML_IMPORT_NAME = "People"
QML_IMPORT_MAJOR_VERSION = 1
@QmlElement
class HappyBirthdaySong(QPyQmlPropertyValueSource):
name_changed = Signal()
def __init__(self, parent=None):
super().__init__(parent)
self.m_target = None
self.m_name = ""
self.m_line = -1
self.m_lyrics = []
self.m_timer = QTimer(self)
self.m_timer.timeout.connect(self.advance)
self.m_timer.start(1000)
def setTarget(self, property):
self.m_target = property
@Property(str, notify=name_changed, final=True)
def name(self):
return self.m_name
@name.setter
def name(self, n):
if self.m_name != n:
self.m_name = n
self.m_lyrics = ["Happy birthday to you,",
"Happy birthday to you,",
f"Happy birthday dear {self.m_name},",
"Happy birthday to you!",
""]
@Slot()
def advance(self):
self.m_line = (self.m_line + 1) % len(self.m_lyrics)
self.m_target.write(self.m_lyrics[self.m_line])
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