1 files changed, 137 insertions, 0 deletions
diff --git a/sources/pyside6/doc/tutorials/modelviewprogramming/qlistview-dnd.py b/sources/pyside6/doc/tutorials/modelviewprogramming/qlistview-dnd.py
new file mode 100644
index 000000000..3a37cc0f3
--- /dev/null
+++ b/sources/pyside6/doc/tutorials/modelviewprogramming/qlistview-dnd.py
@@ -0,0 +1,137 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+import sys
+
+from PySide6.QtWidgets import (QAbstractItemView, QApplication, QMainWindow,
+                               QListView)
+from PySide6.QtCore import (QByteArray, QDataStream, QIODevice, QMimeData,
+                            QModelIndex, QStringListModel, Qt)
+
+
+class DragDropListModel(QStringListModel):
+    """A simple model that uses a QStringList as its data source."""
+
+    def __init__(self, strings, parent=None):
+          super().__init__(strings, parent)
+
+#! [0]
+
+    def canDropMimeData(self, data, action, row, column, parent):
+        if not data.hasFormat("application/vnd.text.list"):
+            return False
+
+        if column > 0:
+            return False
+
+        return True
+#! [0]
+#! [1]
+    def dropMimeData(self, data, action, row, column, parent):
+        if not self.canDropMimeData(data, action, row, column, parent):
+            return False
+
+        if action == Qt.IgnoreAction:
+            return True
+#! [1]
+
+#! [2]
+        begin_row = 0
+
+        if row != -1:
+            begin_row = row
+#! [2] #! [3]
+        elif parent.isValid():
+            begin_row = parent.row()
+#! [3] #! [4]
+        else:
+            begin_row = self.rowCount(QModelIndex())
+#! [4]
+
+#! [5]
+        encoded_data = data.data("application/vnd.text.list")
+        stream = QDataStream(encoded_data, QIODevice.ReadOnly)
+        new_items = []
+        while not stream.atEnd():
+            new_items.append(stream.readQString())
+#! [5]
+
+#! [6]
+        self.insertRows(begin_row, len(new_items), QModelIndex())
+        for text in new_items:
+            idx = self.index(begin_row, 0, QModelIndex())
+            self.setData(idx, text)
+            begin_row += 1
+
+        return True
+#! [6]
+
+#! [7]
+    def flags(self, index):
+        default_flags = super().flags(index)
+        if index.isValid():
+            return Qt.ItemIsDragEnabled | Qt.ItemIsDropEnabled | default_flags
+        return Qt.ItemIsDropEnabled | default_flags
+#! [7]
+
+#! [8]
+    def mimeData(self, indexes):
+        mime_data = QMimeData()
+        encoded_data = QByteArray()
+        stream = QDataStream(encoded_data, QIODevice.WriteOnly)
+        for index in indexes:
+            if index.isValid():
+                text = self.data(index, Qt.DisplayRole)
+                stream.writeQString(text)
+
+        mime_data.setData("application/vnd.text.list", encoded_data)
+        return mime_data
+#! [8]
+
+#! [9]
+    def mimeTypes(self):
+        return ["application/vnd.text.list"]
+#! [9]
+
+#! [10]
+    def supportedDropActions(self):
+        return Qt.CopyAction | Qt.MoveAction
+#! [10]
+
+
+class MainWindow(QMainWindow):
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        file_menu = self.menuBar().addMenu("&File")
+        quit_action = file_menu.addAction("E&xit")
+        quit_action.setShortcut("Ctrl+Q")
+
+#! [mainwindow0]
+        self._list_view = QListView(self)
+        self._list_view.setSelectionMode(QAbstractItemView.ExtendedSelection)
+        self._list_view.setDragEnabled(True)
+        self._list_view.setAcceptDrops(True)
+        self._list_view.setDropIndicatorShown(True)
+#! [mainwindow0]
+
+        quit_action.triggered.connect(self.close)
+
+        self.setup_list_items()
+
+        self.setCentralWidget(self._list_view)
+        self.setWindowTitle("List View")
+
+    def setup_list_items(self):
+        items = ["Oak", "Fir", "Pine", "Birch", "Hazel", "Redwood", "Sycamore",
+                 "Chestnut", "Mahogany"]
+        model = DragDropListModel(items, self)
+        self._list_view.setModel(model)
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    window = MainWindow()
+    window.show()
+    sys.exit(app.exec())