1 files changed, 110 insertions, 0 deletions
diff --git a/examples/opengl/hellogl2/window.py b/examples/opengl/hellogl2/window.py
new file mode 100644
index 000000000..ad61d2f97
--- /dev/null
+++ b/examples/opengl/hellogl2/window.py
@@ -0,0 +1,110 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# Copyright (C) 2013 Riverbank Computing Limited.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import Slot, Qt
+from PySide6.QtWidgets import (QHBoxLayout, QMainWindow,
+                               QMessageBox, QPushButton, QSlider,
+                               QVBoxLayout, QWidget)
+
+from glwidget import GLWidget
+
+
+def _main_window():
+    for t in qApp.topLevelWidgets():  # noqa: F821
+        if isinstance(t, QMainWindow):
+            return t
+    return None
+
+
+class Window(QWidget):
+    instances = []  # Keep references when undocked
+
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.instances.append(self)
+
+        self._gl_widget = GLWidget()
+
+        self._x_slider = self.create_slider()
+        self._x_slider.valueChanged.connect(self._gl_widget.set_xrotation)
+        self._gl_widget.x_rotation_changed.connect(self._x_slider.setValue)
+
+        self._y_slider = self.create_slider()
+        self._y_slider.valueChanged.connect(self._gl_widget.set_yrotation)
+        self._gl_widget.y_rotation_changed.connect(self._y_slider.setValue)
+
+        self._z_slider = self.create_slider()
+        self._z_slider.valueChanged.connect(self._gl_widget.set_zrotation)
+        self._gl_widget.z_rotation_changed.connect(self._z_slider.setValue)
+
+        mainLayout = QVBoxLayout(self)
+        w = QWidget()
+        container = QHBoxLayout(w)
+        container.addWidget(self._gl_widget)
+        container.addWidget(self._x_slider)
+        container.addWidget(self._y_slider)
+        container.addWidget(self._z_slider)
+
+        mainLayout.addWidget(w)
+        self._dock_btn = QPushButton("Undock")
+        self._dock_btn.clicked.connect(self.dock_undock)
+        mainLayout.addWidget(self._dock_btn)
+
+        self._x_slider.setValue(15 * 16)
+        self._y_slider.setValue(345 * 16)
+        self._z_slider.setValue(0 * 16)
+
+        self.setWindowTitle(self.tr("Hello GL"))
+
+    def create_slider(self):
+        slider = QSlider(Qt.Vertical)
+
+        slider.setRange(0, 360 * 16)
+        slider.setSingleStep(16)
+        slider.setPageStep(15 * 16)
+        slider.setTickInterval(15 * 16)
+        slider.setTickPosition(QSlider.TicksRight)
+        return slider
+
+    def closeEvent(self, event):
+        self.instances.remove(self)
+        event.accept()
+
+    def keyPressEvent(self, event):
+        if self.isWindow() and event.key() == Qt.Key_Escape:
+            self.close()
+        else:
+            super().keyPressEvent(event)
+
+    @Slot()
+    def dock_undock(self):
+        if self.parent():
+            self.undock()
+        else:
+            self.dock()
+
+    def dock(self):
+        mainWindow = _main_window()
+        if not mainWindow or not mainWindow.isVisible():
+            QMessageBox.information(self, "Cannot Dock",
+                                    "Main window already closed")
+            return
+        if mainWindow.centralWidget():
+            QMessageBox.information(self, "Cannot Dock",
+                                    "Main window already occupied")
+            return
+
+        self.setAttribute(Qt.WA_DeleteOnClose, False)
+        self._dock_btn.setText("Undock")
+        mainWindow.setCentralWidget(self)
+
+    def undock(self):
+        self.setParent(None)
+        self.setAttribute(Qt.WA_DeleteOnClose)
+        geometry = self.screen().availableGeometry()
+        x = geometry.x() + (geometry.width() - self.width()) / 2
+        y = geometry.y() + (geometry.height() - self.height()) / 2
+        self.move(x, y)
+        self._dock_btn.setText("Dock")
+        self.show()