1 files changed, 100 insertions, 0 deletions
diff --git a/examples/charts/nesteddonuts/nesteddonuts.py b/examples/charts/nesteddonuts/nesteddonuts.py
new file mode 100644
index 000000000..49173c33a
--- /dev/null
+++ b/examples/charts/nesteddonuts/nesteddonuts.py
@@ -0,0 +1,100 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+"""PySide6 port of the Nested Donuts example from Qt v5.x"""
+
+import sys
+
+from PySide6.QtCore import Qt, QTimer, Slot
+from PySide6.QtGui import QPainter
+from PySide6.QtWidgets import QApplication, QGridLayout, QWidget
+from PySide6.QtCharts import QChart, QChartView, QPieSeries, QPieSlice
+
+
+from random import randrange
+from functools import partial
+
+
+class Widget(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.setMinimumSize(800, 600)
+        self.donuts = []
+        self.chart_view = QChartView()
+        self.chart_view.setRenderHint(QPainter.Antialiasing)
+        self.chart = self.chart_view.chart()
+        self.chart.legend().setVisible(False)
+        self.chart.setTitle("Nested donuts demo")
+        self.chart.setAnimationOptions(QChart.AllAnimations)
+
+        self.min_size = 0.1
+        self.max_size = 0.9
+        self.donut_count = 5
+
+        self.setup_donuts()
+
+        # create main layout
+        self.main_layout = QGridLayout(self)
+        self.main_layout.addWidget(self.chart_view, 1, 1)
+        self.setLayout(self.main_layout)
+
+        self.update_timer = QTimer(self)
+        self.update_timer.timeout.connect(self.update_rotation)
+        self.update_timer.start(1250)
+
+    def setup_donuts(self):
+        for i in range(self.donut_count):
+            donut = QPieSeries()
+            slccount = randrange(3, 6)
+            for j in range(slccount):
+                value = randrange(100, 200)
+
+                slc = QPieSlice(str(value), value)
+                slc.setLabelVisible(True)
+                slc.setLabelColor(Qt.white)
+                slc.setLabelPosition(QPieSlice.LabelInsideTangential)
+
+                # Connection using an extra parameter for the slot
+                slc.hovered[bool].connect(partial(self.explode_slice, slc=slc))
+
+                donut.append(slc)
+                size = (self.max_size - self.min_size) / self.donut_count
+                donut.setHoleSize(self.min_size + i * size)
+                donut.setPieSize(self.min_size + (i + 1) * size)
+
+            self.donuts.append(donut)
+            self.chart_view.chart().addSeries(donut)
+
+    @Slot()
+    def update_rotation(self):
+        for donut in self.donuts:
+            phase_shift = randrange(-50, 100)
+            donut.setPieStartAngle(donut.pieStartAngle() + phase_shift)
+            donut.setPieEndAngle(donut.pieEndAngle() + phase_shift)
+
+    def explode_slice(self, exploded, slc):
+        if exploded:
+            self.update_timer.stop()
+            slice_startangle = slc.startAngle()
+            slice_endangle = slc.startAngle() + slc.angleSpan()
+
+            donut = slc.series()
+            idx = self.donuts.index(donut)
+            for i in range(idx + 1, len(self.donuts)):
+                self.donuts[i].setPieStartAngle(slice_endangle)
+                self.donuts[i].setPieEndAngle(360 + slice_startangle)
+        else:
+            for donut in self.donuts:
+                donut.setPieStartAngle(0)
+                donut.setPieEndAngle(360)
+
+            self.update_timer.start()
+
+        slc.setExploded(exploded)
+
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    w = Widget()
+    w.show()
+    sys.exit(app.exec())