1 files changed, 84 insertions, 0 deletions
diff --git a/examples/declarative/referenceexamples/valuesource/happybirthdaysong.py b/examples/declarative/referenceexamples/valuesource/happybirthdaysong.py
new file mode 100644
index 000000000..bf9c99ca8
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+++ b/examples/declarative/referenceexamples/valuesource/happybirthdaysong.py
@@ -0,0 +1,84 @@
+#############################################################################
+##
+## Copyright (C) 2022 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the Qt for Python examples of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## You may use this file under the terms of the BSD license as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+##   * Redistributions of source code must retain the above copyright
+##     notice, this list of conditions and the following disclaimer.
+##   * Redistributions in binary form must reproduce the above copyright
+##     notice, this list of conditions and the following disclaimer in
+##     the documentation and/or other materials provided with the
+##     distribution.
+##   * Neither the name of The Qt Company Ltd nor the names of its
+##     contributors may be used to endorse or promote products derived
+##     from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+from PySide6.QtCore import QObject, QTimer, Property, Slot
+from PySide6.QtQml import QmlElement, QPyQmlPropertyValueSource
+
+# To be used on the @QmlElement decorator
+# (QML_IMPORT_MINOR_VERSION is optional)
+QML_IMPORT_NAME = "examples.valuesource.people"
+QML_IMPORT_MAJOR_VERSION = 1
+
+
+@QmlElement
+class HappyBirthdaySong(QPyQmlPropertyValueSource):
+
+    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)
+    def name(self):
+        return self.m_name
+
+    @name.setter
+    def name(self, 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])