1 files changed, 136 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/layouts/dynamiclayouts/dialog.cpp b/tests/manual/examples/widgets/layouts/dynamiclayouts/dialog.cpp
new file mode 100644
index 0000000000..28b4fc2f7f
--- /dev/null
+++ b/tests/manual/examples/widgets/layouts/dynamiclayouts/dialog.cpp
@@ -0,0 +1,136 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+
+#include "dialog.h"
+
+Dialog::Dialog(QWidget *parent)
+    : QDialog(parent)
+{
+    createRotatableGroupBox();
+    createOptionsGroupBox();
+    createButtonBox();
+
+    mainLayout = new QGridLayout;
+    mainLayout->addWidget(rotatableGroupBox, 0, 0);
+    mainLayout->addWidget(optionsGroupBox, 1, 0);
+    mainLayout->addWidget(buttonBox, 2, 0);
+    setLayout(mainLayout);
+
+    mainLayout->setSizeConstraint(QLayout::SetMinimumSize);
+
+    setWindowTitle(tr("Dynamic Layouts"));
+}
+
+void Dialog::buttonsOrientationChanged(int index)
+{
+    mainLayout->setSizeConstraint(QLayout::SetNoConstraint);
+    setMinimumSize(0, 0);
+
+    Qt::Orientation orientation = Qt::Orientation(
+            buttonsOrientationComboBox->itemData(index).toInt());
+
+    if (orientation == buttonBox->orientation())
+        return;
+
+    mainLayout->removeWidget(buttonBox);
+
+    int spacing = mainLayout->spacing();
+
+    QSize oldSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
+    buttonBox->setOrientation(orientation);
+    QSize newSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
+
+    if (orientation == Qt::Horizontal) {
+        mainLayout->addWidget(buttonBox, 2, 0);
+        resize(size() + QSize(-oldSizeHint.width(), newSizeHint.height()));
+    } else {
+        mainLayout->addWidget(buttonBox, 0, 3, 2, 1);
+        resize(size() + QSize(newSizeHint.width(), -oldSizeHint.height()));
+    }
+
+    mainLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
+}
+
+void Dialog::rotateWidgets()
+{
+    Q_ASSERT(rotatableWidgets.count() % 2 == 0);
+
+    for (QWidget *widget : std::as_const(rotatableWidgets))
+        rotatableLayout->removeWidget(widget);
+
+    rotatableWidgets.enqueue(rotatableWidgets.dequeue());
+
+    const int n = rotatableWidgets.count();
+    for (int i = 0; i < n / 2; ++i) {
+        rotatableLayout->addWidget(rotatableWidgets[n - i - 1], 0, i);
+        rotatableLayout->addWidget(rotatableWidgets[i], 1, i);
+    }
+}
+
+void Dialog::help()
+{
+    QMessageBox::information(this, tr("Dynamic Layouts Help"),
+                               tr("This example shows how to change layouts "
+                                  "dynamically."));
+}
+
+void Dialog::createRotatableGroupBox()
+{
+    rotatableGroupBox = new QGroupBox(tr("Rotatable Widgets"));
+
+    rotatableWidgets.enqueue(new QSpinBox);
+    rotatableWidgets.enqueue(new QSlider);
+    rotatableWidgets.enqueue(new QDial);
+    rotatableWidgets.enqueue(new QProgressBar);
+
+    int n = rotatableWidgets.count();
+    for (int i = 0; i < n; ++i) {
+        connect(rotatableWidgets[i], SIGNAL(valueChanged(int)),
+                rotatableWidgets[(i + 1) % n], SLOT(setValue(int)));
+    }
+
+    rotatableLayout = new QGridLayout;
+    rotatableGroupBox->setLayout(rotatableLayout);
+
+    rotateWidgets();
+}
+
+void Dialog::createOptionsGroupBox()
+{
+    optionsGroupBox = new QGroupBox(tr("Options"));
+
+    buttonsOrientationLabel = new QLabel(tr("Orientation of buttons:"));
+
+    buttonsOrientationComboBox = new QComboBox;
+    buttonsOrientationComboBox->addItem(tr("Horizontal"), Qt::Horizontal);
+    buttonsOrientationComboBox->addItem(tr("Vertical"), Qt::Vertical);
+
+    connect(buttonsOrientationComboBox,
+            &QComboBox::currentIndexChanged,
+            this,
+            &Dialog::buttonsOrientationChanged);
+
+    optionsLayout = new QGridLayout;
+    optionsLayout->addWidget(buttonsOrientationLabel, 0, 0);
+    optionsLayout->addWidget(buttonsOrientationComboBox, 0, 1);
+    optionsLayout->setColumnStretch(2, 1);
+    optionsGroupBox->setLayout(optionsLayout);
+}
+
+void Dialog::createButtonBox()
+{
+    buttonBox = new QDialogButtonBox;
+
+    closeButton = buttonBox->addButton(QDialogButtonBox::Close);
+    helpButton = buttonBox->addButton(QDialogButtonBox::Help);
+    rotateWidgetsButton = buttonBox->addButton(tr("Rotate &Widgets"),
+                                               QDialogButtonBox::ActionRole);
+
+    connect(rotateWidgetsButton, &QPushButton::clicked, this, &Dialog::rotateWidgets);
+    connect(closeButton, &QPushButton::clicked, this, &Dialog::close);
+    connect(helpButton, &QPushButton::clicked, this, &Dialog::help);
+}
+
+