1 files changed, 67 insertions, 0 deletions
diff --git a/examples/datavisualization/graphgallery/variantbardatamapping.py b/examples/datavisualization/graphgallery/variantbardatamapping.py
new file mode 100644
index 000000000..50bdefa6a
--- /dev/null
+++ b/examples/datavisualization/graphgallery/variantbardatamapping.py
@@ -0,0 +1,67 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import QObject, Signal
+
+
+class VariantBarDataMapping(QObject):
+
+    rowIndexChanged = Signal()
+    columnIndexChanged = Signal()
+    valueIndexChanged = Signal()
+    rowCategoriesChanged = Signal()
+    columnCategoriesChanged = Signal()
+    mappingChanged = Signal()
+
+    def __init__(self, rowIndex, columnIndex, valueIndex,
+                 rowCategories=[], columnCategories=[]):
+        super().__init__(None)
+        self._rowIndex = rowIndex
+        self._columnIndex = columnIndex
+        self._valueIndex = valueIndex
+        self._rowCategories = rowCategories
+        self._columnCategories = columnCategories
+
+    def setRowIndex(self, index):
+        self._rowIndex = index
+        self.mappingChanged.emit()
+
+    def rowIndex(self):
+        return self._rowIndex
+
+    def setColumnIndex(self, index):
+        self._columnIndex = index
+        self.mappingChanged.emit()
+
+    def columnIndex(self):
+        return self._columnIndex
+
+    def setValueIndex(self, index):
+        self._valueIndex = index
+        self.mappingChanged.emit()
+
+    def valueIndex(self):
+        return self._valueIndex
+
+    def setRowCategories(self, categories):
+        self._rowCategories = categories
+        self.mappingChanged.emit()
+
+    def rowCategories(self):
+        return self._rowCategories
+
+    def setColumnCategories(self, categories):
+        self._columnCategories = categories
+        self.mappingChanged.emit()
+
+    def columnCategories(self):
+        return self._columnCategories
+
+    def remap(self, rowIndex, columnIndex, valueIndex,
+              rowCategories=[], columnCategories=[]):
+        self._rowIndex = rowIndex
+        self._columnIndex = columnIndex
+        self._valueIndex = valueIndex
+        self._rowCategories = rowCategories
+        self._columnCategories = columnCategories
+        self.mappingChanged.emit()