1 files changed, 134 insertions, 0 deletions
diff --git a/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py b/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py
new file mode 100644
index 000000000..c9dfcc730
--- /dev/null
+++ b/examples/widgets/layouts/dynamiclayouts/dynamiclayouts.py
@@ -0,0 +1,134 @@
+# Copyright (C) 2013 Riverbank Computing Limited.
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+"""PySide6 port of the widgets/layouts/dynamiclayouts example from Qt v5.x"""
+
+from PySide6.QtCore import Qt, QSize
+from PySide6.QtWidgets import (QApplication, QDialog, QLayout, QGridLayout,
+                               QMessageBox, QGroupBox, QSpinBox, QSlider,
+                               QProgressBar, QDial, QDialogButtonBox,
+                               QComboBox, QLabel)
+
+
+class Dialog(QDialog):
+    def __init__(self):
+        super().__init__()
+
+        self._rotable_widgets = []
+
+        self.create_rotable_group_box()
+        self.create_options_group_box()
+        self.create_button_box()
+
+        main_layout = QGridLayout()
+        main_layout.addWidget(self._rotable_group_box, 0, 0)
+        main_layout.addWidget(self._options_group_box, 1, 0)
+        main_layout.addWidget(self._button_box, 2, 0)
+        main_layout.setSizeConstraint(QLayout.SetMinimumSize)
+
+        self._main_layout = main_layout
+        self.setLayout(self._main_layout)
+
+        self.setWindowTitle("Dynamic Layouts")
+
+    def rotate_widgets(self):
+        count = len(self._rotable_widgets)
+        if count % 2 == 1:
+            raise AssertionError("Number of widgets must be even")
+
+        for widget in self._rotable_widgets:
+            self._rotable_layout.removeWidget(widget)
+
+        self._rotable_widgets.append(self._rotable_widgets.pop(0))
+
+        for i in range(count // 2):
+            self._rotable_layout.addWidget(self._rotable_widgets[count - i - 1], 0, i)
+            self._rotable_layout.addWidget(self._rotable_widgets[i], 1, i)
+
+    def buttons_orientation_changed(self, index):
+        self._main_layout.setSizeConstraint(QLayout.SetNoConstraint)
+        self.setMinimumSize(0, 0)
+
+        orientation = Qt.Orientation(self._buttons_orientation_combo_box.itemData(index))
+
+        if orientation == self._button_box.orientation():
+            return
+
+        self._main_layout.removeWidget(self._button_box)
+
+        spacing = self._main_layout.spacing()
+
+        old_size_hint = self._button_box.sizeHint() + QSize(spacing, spacing)
+        self._button_box.setOrientation(orientation)
+        new_size_hint = self._button_box.sizeHint() + QSize(spacing, spacing)
+
+        if orientation == Qt.Horizontal:
+            self._main_layout.addWidget(self._button_box, 2, 0)
+            self.resize(self.size() + QSize(-old_size_hint.width(), new_size_hint.height()))
+        else:
+            self._main_layout.addWidget(self._button_box, 0, 3, 2, 1)
+            self.resize(self.size() + QSize(new_size_hint.width(), -old_size_hint.height()))
+
+        self._main_layout.setSizeConstraint(QLayout.SetDefaultConstraint)
+
+    def show_help(self):
+        QMessageBox.information(self, "Dynamic Layouts Help",
+                                "This example shows how to change layouts "
+                                "dynamically.")
+
+    def create_rotable_group_box(self):
+        self._rotable_group_box = QGroupBox("Rotable Widgets")
+
+        self._rotable_widgets.append(QSpinBox())
+        self._rotable_widgets.append(QSlider())
+        self._rotable_widgets.append(QDial())
+        self._rotable_widgets.append(QProgressBar())
+        count = len(self._rotable_widgets)
+        for i in range(count):
+            element = self._rotable_widgets[(i + 1) % count]
+            self._rotable_widgets[i].valueChanged[int].connect(element.setValue)
+
+        self._rotable_layout = QGridLayout()
+        self._rotable_group_box.setLayout(self._rotable_layout)
+
+        self.rotate_widgets()
+
+    def create_options_group_box(self):
+        self._options_group_box = QGroupBox("Options")
+
+        buttons_orientation_label = QLabel("Orientation of buttons:")
+
+        buttons_orientation_combo_box = QComboBox()
+        buttons_orientation_combo_box.addItem("Horizontal", Qt.Horizontal)
+        buttons_orientation_combo_box.addItem("Vertical", Qt.Vertical)
+        buttons_orientation_combo_box.currentIndexChanged[int].connect(
+            self.buttons_orientation_changed)
+
+        self._buttons_orientation_combo_box = buttons_orientation_combo_box
+
+        options_layout = QGridLayout()
+        options_layout.addWidget(buttons_orientation_label, 0, 0)
+        options_layout.addWidget(self._buttons_orientation_combo_box, 0, 1)
+        options_layout.setColumnStretch(2, 1)
+        self._options_group_box.setLayout(options_layout)
+
+    def create_button_box(self):
+        self._button_box = QDialogButtonBox()
+
+        close_button = self._button_box.addButton(QDialogButtonBox.Close)
+        help_button = self._button_box.addButton(QDialogButtonBox.Help)
+        rotate_widgets_button = self._button_box.addButton(
+            "Rotate &Widgets", QDialogButtonBox.ActionRole)
+
+        rotate_widgets_button.clicked.connect(self.rotate_widgets)
+        close_button.clicked.connect(self.close)
+        help_button.clicked.connect(self.show_help)
+
+
+if __name__ == '__main__':
+    import sys
+
+    app = QApplication(sys.argv)
+    dialog = Dialog()
+    dialog.exec()