Move icons example to manual test

Pick-to: 6.5 6.6
Change-Id: I08f44448f96a61f780c21d628954879c7b28dce3
Reviewed-by: Volker Hilsheimer <[email protected]>

28 files changed, 0 insertions, 1784 deletions

diff --git a/examples/widgets/doc/src/icons.qdoc b/examples/widgets/doc/src/icons.qdoc
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@@ -1,805 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
-
-/*!
-    \example widgets/icons
-    \title Icons Example
-    \ingroup examples-widgets
-    \brief The Icons example shows how QIcon can generate pixmaps reflecting
-    an icon's state, mode and size.
-
-    These pixmaps are generated from the set of pixmaps made available to the
-    icon, and are used by Qt widgets to show an icon representing a particular
-    action.
-
-    \image icons-example.png Screenshot of the Icons example
-
-    Contents:
-
-    \tableofcontents
-
-    \section1 QIcon Overview
-
-    The QIcon class provides scalable icons in different modes and
-    states. An icon's state and mode are depending on the intended use
-    of the icon. Qt currently defines four modes:
-
-    \table
-    \header \li Mode \li Description
-    \row
-    \li QIcon::Normal
-    \li Display the pixmap when the user is not interacting with the
-       icon, but the functionality represented by the icon is
-       available.
-    \row
-    \li QIcon::Active
-    \li Display the pixmap when the functionality represented by the
-       icon is available and the user is interacting with the icon,
-       for example, moving the mouse over it or clicking it.
-    \row
-    \li QIcon::Disabled
-    \li Display the pixmap when the functionality represented by
-       the icon is not available.
-    \row
-    \li QIcon::Selected
-    \li Display the pixmap when the icon is selected.
-    \endtable
-
-    QIcon's states are QIcon::On and QIcon::Off, which will display
-    the pixmap when the widget is in the respective state. The most
-    common usage of QIcon's states are when displaying checkable tool
-    buttons or menu entries (see QAbstractButton::setCheckable() and
-    QAction::setCheckable()). When a tool button or menu entry is
-    checked, the QIcon's state is \l{QIcon::}{On}, otherwise it's
-    \l{QIcon::}{Off}. You can, for example, use the QIcon's states to
-    display differing pixmaps depending on whether the tool button or
-    menu entry is checked or not.
-
-    A QIcon can generate smaller, larger, active, disabled, and
-    selected pixmaps from the set of pixmaps it is given. Such
-    pixmaps are used by Qt widgets to show an icon representing a
-    particular action.
-
-    \section1 Overview of the Icons Application
-
-    With the Icons application you get a preview of an icon's
-    generated pixmaps reflecting its different states, modes and size.
-
-    When an image is loaded into the application, it is converted into
-    a pixmap and becomes a part of the set of pixmaps available to the
-    icon. An image can be excluded from this set by checking off the
-    related checkbox. The application provides a sub directory
-    containing sets of images explicitly designed to illustrate how Qt
-    renders an icon in different modes and states.
-
-    The application allows you to manipulate the icon size with some
-    predefined sizes and a spin box. The predefined sizes are style
-    dependent, but most of the styles have the same values. Only the
-    \macos style differs by using 32 pixels instead of 16 pixels
-    for toolbar buttons. You can navigate between the available styles
-    using the \uicontrol View menu.
-
-    \image icons-view-menu.png Screenshot of the View menu
-
-    The \uicontrol View menu also provide the option to make the application
-    guess the icon state and mode from an image's file name. The \uicontrol
-    File menu provide the options of adding an image and removing all
-    images. These last options are also available through a context
-    menu that appears if you press the right mouse button within the
-    table of image files. In addition, the \uicontrol File menu provide an
-    \uicontrol Exit option, and the \uicontrol Help menu provide information about
-    the example and about Qt.
-
-    \image icons_find_normal.png Screenshot of the Find Files
-
-    The screenshot above shows the application with one image file
-    loaded. The \uicontrol {Guess Image Mode/State} is enabled and the
-    style is Plastique.
-
-    When QIcon is provided with only one available pixmap, that
-    pixmap is used for all the states and modes. In this case the
-    pixmap's icon mode is set to normal, and the generated pixmaps
-    for the normal and active modes will look the same. But in
-    disabled and selected mode, Qt will generate a slightly different
-    pixmap.
-
-    The next screenshot shows the application with an additional file
-    loaded, providing QIcon with two available pixmaps. Note that the
-    new image file's mode is set to disabled. When rendering the \uicontrol
-    Disabled mode pixmaps, Qt will now use the new image. We can see
-    the difference: The generated disabled pixmap in the first
-    screenshot is slightly darker than the pixmap with the originally
-    set disabled mode in the second screenshot.
-
-    \image icons_find_normal_disabled.png Screenshot of the Find Files
-
-    When Qt renders the icon's pixmaps it searches through the set of
-    available pixmaps following a particular algorithm. The algorithm
-    is documented in QIcon, but we will describe some particular cases
-    below.
-
-    \image icons_monkey_active.png Screenshot of the Find Files
-
-    In the screenshot above, we have set \c monkey_on_32x32 to be an
-    Active/On pixmap and \c monkey_off_64x64 to be Normal/Off. To
-    render the other six mode/state combinations, QIcon uses the
-    search algorithm described in the table below:
-
-    \table 100%
-    \header \li{2,1} Requested Pixmap \li {8,1} Preferred Alternatives (mode/state)
-    \header \li Mode \li State \li 1  \li 2 \li 3 \li 4 \li 5 \li 6 \li 7 \li 8
-    \row \li{1,2} Normal \li Off \li \b N0 \li A0 \li N1 \li A1 \li D0 \li S0 \li D1 \li S1
-    \row \li On \li N1 \li \b A1 \li N0 \li A0 \li D1 \li S1 \li D0 \li S0
-    \row \li{1,2} Active \li Off \li A0 \li \b N0 \li A1 \li N1 \li D0 \li S0 \li D1 \li S1
-    \row \li On \li \b A1 \li N1 \li A0 \li N0 \li D1 \li S1 \li D0 \li S0
-    \row \li{1,2} Disabled \li Off \li D0 \li \b {N0'} \li A0' \li D1 \li N1' \li A1' \li S0' \li S1'
-    \row \li On \li D1 \li N1' \li \b {A1'} \li D0 \li N0' \li A0' \li S1' \li S0'
-    \row \li{1,2} Selected \li Off \li S0 \li \b {N0''} \li A0'' \li S1 \li N1'' \li A1'' \li D0'' \li D1''
-    \row \li On \li S1 \li N1'' \li \b {A1''} \li S0 \li N0'' \li A0'' \li D1'' \li D0''
-    \endtable
-
-    In the table, "0" and "1" stand for "Off" and "On", respectively.
-    Single quotes indicates that QIcon generates a disabled ("grayed
-    out") version of the pixmap; similarly, double quuote indicate
-    that QIcon generates a selected ("blued out") version of the
-    pixmap.
-
-    The alternatives used in the screenshot above are shown in bold.
-    For example, the Disabled/Off pixmap is derived by graying out
-    the Normal/Off pixmap (\c monkey_off_64x64).
-
-    In the next screenshots, we loaded the whole set of monkey
-    images. By checking or unchecking file names from the image list,
-    we get different results:
-
-    \table
-    \row
-    \li \inlineimage icons_monkey.png Screenshot of the Monkey Files
-    \li \inlineimage icons_monkey_mess.png Screenshot of the Monkey Files
-    \endtable
-
-    For any given mode/state combination, it is possible to specify
-    several images at different resolutions. When rendering an
-    icon, QIcon will automatically pick the most suitable image
-    and scale it down if necessary. (QIcon never scales up images,
-    because this rarely looks good.)
-
-    The screenshots below shows what happens when we provide QIcon
-    with three images (\c qt_extended_16x16.png, \c qt_extended_32x32.png, \c
-    qt_extended_48x48.png) and try to render the QIcon at various
-    resolutions:
-
-    \table
-    \row
-    \li
-    \li \inlineimage icons_qt_extended_8x8.png Qt Extended icon at 8 x 8
-    \li \inlineimage icons_qt_extended_16x16.png Qt Extended icon at 16 x 16
-    \li \inlineimage icons_qt_extended_17x17.png Qt Extended icon at 17 x 17
-    \row
-    \li
-    \li 8 x 8
-    \li \b {16 x 16}
-    \li 17 x 17
-    \row
-    \li \inlineimage icons_qt_extended_32x32.png Qt Extended icon at 32 x 32
-    \li \inlineimage icons_qt_extended_33x33.png Qt Extended icon at 33 x 33
-    \li \inlineimage icons_qt_extended_48x48.png Qt Extended icon at 48 x 48
-    \li \inlineimage icons_qt_extended_64x64.png Qt Extended icon at 64 x 64
-    \row
-    \li \b {32 x 32}
-    \li 33 x 33
-    \li \b {48 x 48}
-    \li 64 x 64
-    \endtable
-
-    For sizes up to 16 x 16, QIcon uses \c qt_extended_16x16.png and
-    scales it down if necessary. For sizes between 17 x 17 and 32 x
-    32, it uses \c qt_extended_32x32.png. For sizes above 32 x 32, it uses
-    \c qt_extended_48x48.png.
-
-    \section1 Line-by-Line Walkthrough
-
-    The Icons example consists of four classes:
-
-    \list
-    \li \c MainWindow inherits QMainWindow and is the main application
-       window.
-    \li \c IconPreviewArea is a custom widget that displays all
-       combinations of states and modes for a given icon.
-    \li \c IconSizeSpinBox is a subclass of QSpinBox that lets the
-       user enter icon sizes (e.g., "48 x 48").
-    \li \c ImageDelegate is a subclass of QStyledItemDelegate that
-       provides comboboxes for letting the user set the mode and state
-       associated with an image.
-    \endlist
-
-    We will start by reviewing the \c IconPreviewArea class before we
-    take a look at the \c MainWindow class. Finally, we will review the
-    \c IconSizeSpinBox and \c ImageDelegate classes.
-
-    \section2 IconPreviewArea Class Definition
-
-    An \c IconPreviewArea widget consists of a group box containing a grid of
-    QLabel widgets displaying headers and pixmaps.
-
-    \image icons_preview_area.png Screenshot of IconPreviewArea.
-
-    \snippet widgets/icons/iconpreviewarea.h 0
-
-    The \c IconPreviewArea class inherits QWidget. It displays the
-    generated pixmaps corresponding to an icon's possible states and
-    modes at a given size.
-
-    \snippet widgets/icons/iconpreviewarea.cpp 42
-
-    We would like the table columns to  be in the order QIcon::Normal,
-    QIcon::Active, QIcon::Disabled, QIcon::Selected and the rows in the order
-    QIcon::Off, QIcon::On, which does not match the enumeration. The above code
-    provides arrays allowing to map from enumeration value to row/column
-    (by using QList::indexOf()) and back by using the array index and lists
-    of the matching strings. Qt's containers can be easily populated by
-    using C++ 11 initializer lists.
-
-    We need two public functions to set the current icon and the
-    icon's size. In addition the class has three private functions: We
-    use the \c createHeaderLabel() and \c createPixmapLabel()
-    functions when constructing the preview area, and we need the \c
-    updatePixmapLabels() function to update the preview area when
-    the icon or the icon's size has changed.
-
-    The \c NumModes and \c NumStates constants reflect \l{QIcon}'s
-    number of currently defined modes and states.
-
-    \section2 IconPreviewArea Class Implementation
-
-    \snippet widgets/icons/iconpreviewarea.cpp 0
-
-    In the constructor we create the labels displaying the headers and
-    the icon's generated pixmaps, and add them to a grid layout.
-
-    When creating the header labels, we make sure the enums \c
-    NumModes and \c NumStates defined in the \c .h file, correspond
-    with the number of labels that we create. Then if the enums at
-    some point are changed, the \c Q_ASSERT() macro will alert that this
-    part of the \c .cpp file needs to be updated as well.
-
-    If the application is built in debug mode, the \c Q_ASSERT()
-    macro will expand to
-
-    \code
-    if (!condition)
-       qFatal("ASSERT: "condition" in file ...");
-    \endcode
-
-    In release mode, the macro simply disappear. The mode can be set
-    in the application's \c .pro file. One way to do so is to add an
-    option to \c qmake when building the application:
-
-    \code
-    qmake "CONFIG += debug" icons.pro
-    \endcode
-
-    or
-
-    \code
-    qmake "CONFIG += release" icons.pro
-    \endcode
-
-    Another approach is to add this line directly to the \c .pro
-    file.
-
-    \snippet widgets/icons/iconpreviewarea.cpp 1
-    \codeline
-    \snippet widgets/icons/iconpreviewarea.cpp 2
-
-    The public \c setIcon() and \c setSize() functions change the icon
-    or the icon size, and make sure that the generated pixmaps are
-    updated.
-
-    \snippet widgets/icons/iconpreviewarea.cpp 3
-    \codeline
-    \snippet widgets/icons/iconpreviewarea.cpp 4
-
-    We use the \c createHeaderLabel() and \c createPixmapLabel()
-    functions to create the preview area's labels displaying the
-    headers and the icon's generated pixmaps. Both functions return
-    the QLabel that is created.
-
-    \snippet widgets/icons/iconpreviewarea.cpp 5
-
-    We use the private \c updatePixmapLabel() function to update the
-    generated pixmaps displayed in the preview area.
-
-    For each mode, and for each state, we retrieve a pixmap using the
-    QIcon::pixmap() function, which generates a pixmap corresponding
-    to the given state, mode and size. We pass the QWindows instance
-    obtained by calling QWidget::windowHandle() on the top level
-    widget (QWidget::nativeParentWidget()) in order to retrieve
-    the pixmap that matches best.
-    We format a tooltip displaying size, actual size and device pixel
-    ratio.
-
-    \section2 MainWindow Class Definition
-
-    The \c MainWindow widget consists of three main elements: an
-    images group box, an icon size group box and a preview area.
-
-    \image icons-example.png Screenshot of the Icons example
-
-    \snippet widgets/icons/mainwindow.h 0
-
-    The MainWindow class inherits from QMainWindow. We reimplement the
-    constructor, and declare several private slots:
-
-    \list
-    \li The \c about() slot simply provides information about the example.
-    \li The \c changeStyle() slot changes the application's GUI style and
-       adjust the style dependent size options.
-    \li The \c changeSize() slot changes the size of the preview area's icon.
-    \li The \c changeIcon() slot updates the set of pixmaps available to the
-       icon displayed in the preview area.
-    \li The \c addSampleImages() slot allows the user to load a new image
-        from the samples provided  into the application.
-    \li The \c addOtherImages() slot allows the user to load a new image from
-        the directory obtained by calling
-        QStandardPaths::standardLocations(QStandardPaths::PicturesLocation).
-    \li The \c screenChanged() updates the display in the \uicontrol{High DPI}
-        group box to correctly display the parameters of the current screen
-        the window is located on.
-    \endlist
-
-    In addition we declare several private functions to simplify the
-    constructor.
-
-    \section2 MainWindow Class Implementation
-
-    \snippet widgets/icons/mainwindow.cpp 0
-
-    In the constructor we first create the main window's central
-    widget and its child widgets, and put them in a grid layout. Then
-    we create the menus with their associated entries and actions.
-
-    We set the window title and determine the current style for the
-    application. We also enable the icon size spin box by clicking the
-    associated radio button, making the current value of the spin box
-    the icon's initial size.
-
-    \snippet widgets/icons/mainwindow.cpp 1
-
-    The \c about() slot displays a message box using the static
-    QMessageBox::about() function. In this example it displays a
-    simple box with information about the example.
-
-    The \c about() function looks for a suitable icon in four
-    locations: It prefers its parent's icon if that exists. If it
-    doesn't, the function tries the top-level widget containing
-    parent, and if that fails, it tries the active window. As a last
-    resort it uses the QMessageBox's Information icon.
-
-    \snippet widgets/icons/mainwindow.cpp 2
-
-    In the \c changeStyle() slot we first check the slot's
-    parameter. If it is false we immediately return, otherwise we find
-    out which style to change to, i.e. which action that triggered the
-    slot, using the QObject::sender() function.
-
-    This function returns the sender as a QObject pointer. Since we
-    know that the sender is a QAction object, we can safely cast the
-    QObject. We could have used a C-style cast or a C++ \c
-    static_cast(), but as a defensive programming technique we use a
-    \l qobject_cast(). The advantage is that if the object has the
-    wrong type, a null pointer is returned. Crashes due to null
-    pointers are much easier to diagnose than crashes due to unsafe
-    casts.
-
-    \snippet widgets/icons/mainwindow.cpp 3
-    \snippet widgets/icons/mainwindow.cpp 4
-
-    Once we have the action, we extract the style name using
-    QAction::data(). Then we create a QStyle object using the static
-    QStyleFactory::create() function.
-
-    Although we can assume that the style is supported by the
-    QStyleFactory: To be on the safe side, we use the \c Q_ASSERT()
-    macro to check if the created style is valid before we use the
-    QApplication::setStyle() function to set the application's GUI
-    style to the new style. QApplication will automatically delete
-    the style object when a new style is set or when the application
-    exits.
-
-    The predefined icon size options provided in the application are
-    style dependent, so we need to update the labels in the icon size
-    group box and in the end call the \c changeSize() slot to update
-    the icon's size.
-
-    \snippet widgets/icons/mainwindow.cpp 5
-
-    The \c changeSize() slot sets the size for the preview area's
-    icon.
-
-    It is invoked by the QButtonGroup whose members are radio buttons for
-    controlling the icon size.  In \c createIconSizeGroupBox(), each button is
-    assigned a QStyle::PixelMetric value as an id, which is passed as a
-    parameter to the slot.
-
-    The special value \c OtherSize indicates that the spin box is
-    enabled. If it is, we extract the extent of the new size from the
-    box. If it's not, we query the style for the metric. Then we create
-    a QSize object based on the extent, and use that object to set the
-    size of the preview area's icon.
-
-    \snippet widgets/icons/mainwindow.cpp 12
-
-    The function \c addImages() is called by the slot addSampleImages()
-    passing the samples directory, or by the slot addOtherImages()
-    passing the directory obtained by querying
-    QStandardPaths::standardLocations().
-
-    The first thing we do is to show a file dialog to the user.
-    We initialize it to show the filters returned by
-    QImageReader::supportedMimeTypes().
-
-    For each of the files the file dialog returns, we add a row to the
-    table widget. The table widget is listing the images the user has
-    loaded into the application.
-
-    \snippet widgets/icons/mainwindow.cpp 13
-
-    We retrieve the image name using the QFileInfo::baseName()
-    function that returns the base name of the file without the path,
-    and create the first table widget item in the row.
-    We check if a high resolution version of the image exists (identified by
-    the suffix \c @2x on the base name) and display that along with the size
-    in the tooltip.
-
-    We add the file's complete name to the item's data. Since an item can
-    hold several information pieces, we need to assign the file name a role
-    that will distinguish it from other data. This role can be Qt::UserRole
-    or any value above it.
-
-    We also make sure that the item is not editable by removing the
-    Qt::ItemIsEditable flag. Table items are editable by default.
-
-    \snippet widgets/icons/mainwindow.cpp 15
-
-    Then we create the second and third items in the row making the
-    default mode Normal and the default state Off. But if the \uicontrol
-    {Guess Image Mode/State} option is checked, and the file name
-    contains "_act", "_dis", or "_sel", the modes are changed to
-    Active, Disabled, or Selected. And if the file name contains
-    "_on", the state is changed to On. The sample files in the
-    example's \c images subdirectory respect this naming convention.
-
-    \snippet widgets/icons/mainwindow.cpp 18
-
-    In the end we add the items to the associated row, and use the
-    QTableWidget::openPersistentEditor() function to create
-    comboboxes for the mode and state columns of the items.
-
-    Due to the connection between the table widget's \l
-    {QTableWidget::itemChanged()}{itemChanged()} signal and the \c
-    changeIcon() slot, the new image is automatically converted into a
-    pixmap and made part of the set of pixmaps available to the icon
-    in the preview area. So, corresponding to this fact, we need to
-    make sure that the new image's check box is enabled.
-
-    \snippet widgets/icons/mainwindow.cpp 6
-
-    The \c changeIcon() slot is called when the user alters the set
-    of images listed in the QTableWidget, to update the QIcon object
-    rendered by the \c IconPreviewArea.
-
-    We first create a QIcon object, and then we run through the
-    QTableWidget, which lists the images the user has loaded into the
-    application.
-
-    \snippet widgets/icons/mainwindow.cpp 8
-
-    We also extract the image file's name using the
-    QTableWidgetItem::data() function. This function takes a
-    Qt::DataItemRole as an argument to retrieve the right data
-    (remember that an item can hold several pieces of information)
-    and returns it as a QVariant. Then we use the
-    QVariant::toString() function to get the file name as a QString.
-
-    To create a pixmap from the file, we need to first create an
-    image and then convert this image into a pixmap using
-    QPixmap::fromImage(). Once we have the final pixmap, we add it,
-    with its associated mode and state, to the QIcon's set of
-    available pixmaps.
-
-    \snippet widgets/icons/mainwindow.cpp 11
-
-    After running through the entire list of images, we change the
-    icon of the preview area to the one we just created.
-
-    \snippet widgets/icons/mainwindow.cpp 20
-
-    In the \c removeAllImages() slot, we simply set the table widget's
-    row count to zero, automatically removing all the images the user
-    has loaded into the application. Then we update the set of pixmaps
-    available to the preview area's icon using the \c changeIcon()
-    slot.
-
-    \image icons_images_groupbox.png Screenshot of the images group box
-
-    The \c createImagesGroupBox() function is implemented to simplify
-    the constructor. The main purpose of the function is to create a
-    QTableWidget that will keep track of the images the user has
-    loaded into the application.
-
-    \snippet widgets/icons/mainwindow.cpp 21
-
-    First we create a group box that will contain the table widget.
-    Then we create a QTableWidget and customize it to suit our
-    purposes.
-
-    We call QAbstractItemView::setSelectionMode() to prevent the user
-    from selecting items.
-
-    The QAbstractItemView::setItemDelegate() call sets the item
-    delegate for the table widget. We create a \c ImageDelegate that
-    we make the item delegate for our view.
-
-    The QStyledItemDelegate class can be used to provide an editor for an item view
-    class that is subclassed from QAbstractItemView. Using a delegate
-    for this purpose allows the editing mechanism to be customized and
-    developed independently from the model and view.
-
-    In this example we derive \c ImageDelegate from QStyledItemDelegate.
-    QStyledItemDelegate usually provides line editors, while our subclass
-    \c ImageDelegate, provides comboboxes for the mode and state
-    fields.
-
-    \snippet widgets/icons/mainwindow.cpp 22
-
-    Then we customize the QTableWidget's horizontal header, and hide
-    the vertical header.
-
-    \snippet widgets/icons/mainwindow.cpp 24
-
-    At the end, we connect the QTableWidget::itemChanged() signal to
-    the \c changeIcon() slot to ensure that the preview area is in
-    sync with the image table.
-
-    \image icons_size_groupbox.png Screenshot of the icon size group box
-
-    The \c createIconSizeGroupBox() function is called from the
-    constructor. It creates the widgets controlling the size of the
-    preview area's icon.
-
-    \snippet widgets/icons/mainwindow.cpp 26
-
-    First we create a group box that will contain all the widgets;
-    then we create the radio buttons and the spin box. We add the
-    radio buttons to an instance of QButtonGroup, using the value
-    of the QStyle::PixelMetric they represent as an integer id.
-
-    \snippet widgets/icons/mainwindow.cpp 40
-
-    We introduce an enumeration constant \c OtherSize to represent
-    a custom size.
-
-    The spin box is not a regular QSpinBox but an \c IconSizeSpinBox.
-    The \c IconSizeSpinBox class inherits QSpinBox and reimplements
-    two functions: QSpinBox::textFromValue() and
-    QSpinBox::valueFromText(). The \c IconSizeSpinBox is designed to
-    handle icon sizes, e.g., "32 x 32", instead of plain integer
-    values.
-
-    \snippet widgets/icons/mainwindow.cpp 27
-
-    Then we connect all of the radio buttons
-    \l{QRadioButton::toggled()}{toggled()} signals and the spin box's
-    \l {QSpinBox::valueChanged()}{valueChanged()} signal to the \c
-    changeSize() slot to make sure that the size of the preview
-    area's icon is updated whenever the user changes the icon size.
-    In the end we put the widgets in a layout that we install on the
-    group box.
-
-    \snippet widgets/icons/mainwindow.cpp 28
-
-    In the \c createActions() function we create and customize all the
-    actions needed to implement the functionality associated with the
-    menu entries in the application.
-
-    In particular we create the \c styleActionGroup based on the
-    currently available GUI styles using
-    QStyleFactory. QStyleFactory::keys() returns a list of valid keys,
-    typically including "windows" and "fusion". Depending on the platform,
-    "windowsvista" and "macos" may be available.
-
-    We create one action for each key, and adds the action to the
-    action group. Also, for each action, we call QAction::setData()
-    with the style name. We will retrieve it later using
-    QAction::data().
-
-    As we go along, we create the \uicontrol File, \uicontrol View and
-    \uicontrol Help menus and add the actions to them.
-
-    The QMenu class provides a menu widget for use in menu bars,
-    context menus, and other popup menus. We put each menu in the
-    application's menu bar, which we retrieve using
-    QMainWindow::menuBar().
-
-    \snippet widgets/icons/mainwindow.cpp 30
-
-    QWidgets have a \l{QWidget::contextMenuPolicy}{contextMenuPolicy}
-    property that controls how the widget should behave when the user
-    requests a context menu (e.g., by right-clicking). We set the
-    QTableWidget's context menu policy to Qt::ActionsContextMenu,
-    meaning that the \l{QAction}s associated with the widget should
-    appear in its context menu.
-
-    Then we add the \uicontrol{Add Image} and \uicontrol{Remove All Images}
-    actions to the table widget. They will then appear in the table
-    widget's context menu.
-
-    \snippet widgets/icons/mainwindow.cpp 31
-
-    In the \c checkCurrentStyle() function we go through the group of
-    style actions, looking for the current GUI style.
-
-    For each action, we first extract the style name using
-    QAction::data(). Since this is only a QStyleFactory key (e.g.,
-    "macos"), we cannot compare it directly to the current
-    style's class name. We need to create a QStyle object using the
-    static QStyleFactory::create() function and compare the class
-    name of the created QStyle object with that of the current style.
-    As soon as we are done with a QStyle candidate, we delete it.
-
-    For all QObject subclasses that use the \c Q_OBJECT macro, the
-    class name of an object is available through its
-    \l{QObject::metaObject()}{meta-object}.
-
-    We can assume that the style is supported by
-    QStyleFactory, but to be on the safe side we use the \c
-    Q_ASSERT() macro to make sure that QStyleFactory::create()
-    returned a valid pointer.
-
-    \snippet widgets/icons/mainwindow.cpp 44
-
-    We overload the show() function to set up the updating of the
-    current screen in \c screenChanged(). After calling QWidget::show(),
-    the QWindow associated with the QWidget is created and we can
-    connect to its QWindow::screenChanged() signal.
-
-    \section2 IconSizeSpinBox Class Definition
-
-    \snippet widgets/icons/iconsizespinbox.h 0
-
-    The \c IconSizeSpinBox class is a subclass of QSpinBox. A plain
-    QSpinBox can only handle integers. But since we want to display
-    the spin box's values in a more sophisticated way, we need to
-    subclass QSpinBox and reimplement the QSpinBox::textFromValue()
-    and QSpinBox::valueFromText() functions.
-
-    \image icons_size_spinbox.png Screenshot of the icon size spinbox
-
-    \section2 IconSizeSpinBox Class Implementation
-
-    \snippet widgets/icons/iconsizespinbox.cpp 0
-
-    The constructor is trivial.
-
-    \snippet widgets/icons/iconsizespinbox.cpp 2
-
-    QSpinBox::textFromValue() is used by the spin box whenever it
-    needs to display a value. The default implementation returns a
-    base 10 representation of the \c value parameter.
-
-    Our reimplementation returns a QString of the form "32 x 32".
-
-    \snippet widgets/icons/iconsizespinbox.cpp 1
-
-    The QSpinBox::valueFromText() function is used by the spin box
-    whenever it needs to interpret text typed in by the user. Since
-    we reimplement the \c textFromValue() function we also need to
-    reimplement the \c valueFromText() function to interpret the
-    parameter text and return the associated int value.
-
-    We parse the text using a regular expression (a QRegularExpression). We
-    define an expression that matches one or several digits,
-    optionally followed by whitespace, an "x" or the times symbol,
-    whitespace and one or several digits again.
-
-    The first digits of the regular expression are captured using
-    parentheses. This enables us to use the QRegularExpressionMatch::captured()
-    or QRegularExpressionMatch::capturedTexts() functions to extract the matched
-    characters. If the first and second numbers of the spin box value
-    differ (e.g., "16 x 24"), we use the first number.
-
-    When the user presses \uicontrol Enter, QSpinBox first calls
-    QSpinBox::valueFromText() to interpret the text typed by the
-    user, then QSpinBox::textFromValue() to present it in a canonical
-    format (e.g., "16 x 16").
-
-    \section2 ImageDelegate Class Definition
-
-    \snippet widgets/icons/imagedelegate.h 0
-
-    The \c ImageDelegate class is a subclass of QStyledItemDelegate. The
-    QStyledItemDelegate class provides display and editing facilities for
-    data items from a model. A single QStyledItemDelegate object is
-    responsible for all items displayed in a item view (in our case,
-    a QTableWidget).
-
-    A QStyledItemDelegate can be used to provide an editor for an item view
-    class that is subclassed from QAbstractItemView. Using a delegate
-    for this purpose allows the editing mechanism to be customized and
-    developed independently from the model and view.
-
-    \snippet widgets/icons/imagedelegate.h 1
-
-    The default implementation of QStyledItemDelegate creates a QLineEdit.
-    Since we want the editor to be a QComboBox, we need to subclass
-    QStyledItemDelegate and reimplement the QStyledItemDelegate::createEditor(),
-    QStyledItemDelegate::setEditorData() and QStyledItemDelegate::setModelData()
-    functions.
-
-    \snippet widgets/icons/imagedelegate.h 2
-
-    The \c emitCommitData() slot is used to emit the
-    QImageDelegate::commitData() signal with the appropriate
-    argument.
-
-    \section2 ImageDelegate Class Implementation
-
-    \snippet widgets/icons/imagedelegate.cpp 0
-
-    The constructor is trivial.
-
-    \snippet widgets/icons/imagedelegate.cpp 1
-
-    The default QStyledItemDelegate::createEditor() implementation returns
-    the widget used to edit the item specified by the model and item
-    index for editing. The parent widget and style option are used to
-    control the appearance of the editor widget.
-
-    Our reimplementation creates and populates a combobox instead of
-    the default line edit. The contents of the combobox depends on
-    the column in the table for which the editor is requested. Column
-    1 contains the QIcon modes, whereas column 2 contains the QIcon
-    states.
-
-    In addition, we connect the combobox's \l
-    {QComboBox::activated()}{activated()} signal to the \c
-    emitCommitData() slot to emit the
-    QAbstractItemDelegate::commitData() signal whenever the user
-    chooses an item using the combobox. This ensures that the rest of
-    the application notices the change and updates itself.
-
-    \snippet widgets/icons/imagedelegate.cpp 2
-
-    The QStyledItemDelegate::setEditorData() function is used by
-    QTableWidget to transfer data from a QTableWidgetItem to the
-    editor. The data is stored as a string; we use
-    QComboBox::findText() to locate it in the combobox.
-
-    Delegates work in terms of models, not items. This makes it
-    possible to use them with any item view class (e.g., QListView,
-    QListWidget, QTreeView, etc.). The transition between model and
-    items is done implicitly by QTableWidget; we don't need to worry
-    about it.
-
-    \snippet widgets/icons/imagedelegate.cpp 3
-
-    The QStyledItemDelegate::setEditorData() function is used by QTableWidget
-    to transfer data back from the editor to the \l{QTableWidgetItem}.
-
-    \snippet widgets/icons/imagedelegate.cpp 4
-
-    The \c emitCommitData() slot simply emit the
-    QAbstractItemDelegate::commitData() signal for the editor that
-    triggered the slot. This signal must be emitted when the editor
-    widget has completed editing the data, and wants to write it back
-    into the model.
-
-    \section2 The Implementation of the Function main()
-
-    \snippet widgets/icons/main.cpp 45
-
-    We use QCommandLineParser to handle any command line options or parameters
-    passed to the application. Then, we resize the main window according
-    to the available screen geometry and show it.
-*/
diff --git a/examples/widgets/widgets/CMakeLists.txt b/examples/widgets/widgets/CMakeLists.txt
index a8432644f9e..76240d487c4 100644
--- a/examples/widgets/widgets/CMakeLists.txt
+++ b/examples/widgets/widgets/CMakeLists.txt
@@ -5,7 +5,6 @@ qt_internal_add_example(analogclock)
 qt_internal_add_example(calculator)
 qt_internal_add_example(calendarwidget)
 qt_internal_add_example(groupbox)
-qt_internal_add_example(icons)
 qt_internal_add_example(imageviewer)
 qt_internal_add_example(lineedits)
 if(QT_FEATURE_movie)
diff --git a/examples/widgets/widgets/icons/CMakeLists.txt b/examples/widgets/widgets/icons/CMakeLists.txt
deleted file mode 100644
index 4dc3fb09eed..00000000000
--- a/examples/widgets/widgets/icons/CMakeLists.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-cmake_minimum_required(VERSION 3.16)
-project(icons LANGUAGES CXX)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/widgets/icons")
-
-find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
-
-qt_standard_project_setup()
-
-qt_add_executable(icons
-    iconpreviewarea.cpp iconpreviewarea.h
-    iconsizespinbox.cpp iconsizespinbox.h
-    imagedelegate.cpp imagedelegate.h
-    main.cpp
-    mainwindow.cpp mainwindow.h
-)
-
-set_target_properties(icons PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-
-target_compile_definitions(icons PRIVATE
-    SRCDIR="${CMAKE_CURRENT_SOURCE_DIR}"
-)
-
-target_link_libraries(icons PRIVATE
-    Qt6::Core
-    Qt6::Gui
-    Qt6::Widgets
-)
-
-install(TARGETS icons
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/widgets/widgets/icons/iconpreviewarea.cpp b/examples/widgets/widgets/icons/iconpreviewarea.cpp
deleted file mode 100644
index 42a5fa7914a..00000000000
--- a/examples/widgets/widgets/icons/iconpreviewarea.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "iconpreviewarea.h"
-
-#include <QGridLayout>
-#include <QLabel>
-#include <QWindow>
-
-//! [0]
-IconPreviewArea::IconPreviewArea(QWidget *parent)
-    : QWidget(parent)
-{
-    QGridLayout *mainLayout = new QGridLayout(this);
-
-    for (int row = 0; row < NumStates; ++row) {
-        stateLabels[row] = createHeaderLabel(IconPreviewArea::iconStateNames().at(row));
-        mainLayout->addWidget(stateLabels[row], row + 1, 0);
-    }
-    Q_ASSERT(NumStates == 2);
-
-    for (int column = 0; column < NumModes; ++column) {
-        modeLabels[column] = createHeaderLabel(IconPreviewArea::iconModeNames().at(column));
-        mainLayout->addWidget(modeLabels[column], 0, column + 1);
-    }
-    Q_ASSERT(NumModes == 4);
-
-    for (int column = 0; column < NumModes; ++column) {
-        for (int row = 0; row < NumStates; ++row) {
-            pixmapLabels[column][row] = createPixmapLabel();
-            mainLayout->addWidget(pixmapLabels[column][row], row + 1, column + 1);
-        }
-    }
-}
-//! [0]
-
-//! [42]
-QList<QIcon::Mode> IconPreviewArea::iconModes()
-{
-    static const QList<QIcon::Mode> result = { QIcon::Normal, QIcon::Active, QIcon::Disabled,
-                                               QIcon::Selected };
-    return result;
-}
-
-QList<QIcon::State> IconPreviewArea::iconStates()
-{
-    static const QList<QIcon::State> result = { QIcon::Off, QIcon::On };
-    return result;
-}
-
-QStringList IconPreviewArea::iconModeNames()
-{
-    static const QStringList result = {tr("Normal"), tr("Active"), tr("Disabled"), tr("Selected")};
-    return result;
-}
-
-QStringList IconPreviewArea::iconStateNames()
-{
-    static const QStringList result = {tr("Off"), tr("On")};
-    return result;
-}
-//! [42]
-
-//! [1]
-void IconPreviewArea::setIcon(const QIcon &icon)
-{
-    this->icon = icon;
-    updatePixmapLabels();
-}
-//! [1]
-
-//! [2]
-void IconPreviewArea::setSize(const QSize &size)
-{
-    if (size != this->size) {
-        this->size = size;
-        updatePixmapLabels();
-    }
-}
-//! [2]
-
-//! [3]
-QLabel *IconPreviewArea::createHeaderLabel(const QString &text)
-{
-    QLabel *label = new QLabel(tr("<b>%1</b>").arg(text));
-    label->setAlignment(Qt::AlignCenter);
-    return label;
-}
-//! [3]
-
-//! [4]
-QLabel *IconPreviewArea::createPixmapLabel()
-{
-    QLabel *label = new QLabel;
-    label->setEnabled(false);
-    label->setAlignment(Qt::AlignCenter);
-    label->setFrameShape(QFrame::Box);
-    label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
-    label->setBackgroundRole(QPalette::Base);
-    label->setAutoFillBackground(true);
-    label->setMinimumSize(132, 132);
-    return label;
-}
-//! [4]
-
-//! [5]
-void IconPreviewArea::updatePixmapLabels()
-{
-    for (int column = 0; column < NumModes; ++column) {
-        for (int row = 0; row < NumStates; ++row) {
-            const QPixmap pixmap =
-                    icon.pixmap(size, devicePixelRatio(), IconPreviewArea::iconModes().at(column),
-                                IconPreviewArea::iconStates().at(row));
-            QLabel *pixmapLabel = pixmapLabels[column][row];
-            pixmapLabel->setPixmap(pixmap);
-            pixmapLabel->setEnabled(!pixmap.isNull());
-            QString toolTip;
-            if (!pixmap.isNull()) {
-                const QSize actualSize = icon.actualSize(size);
-                toolTip =
-                    tr("Size: %1x%2\nActual size: %3x%4\nDevice pixel ratio: %5")
-                        .arg(size.width()).arg(size.height())
-                        .arg(actualSize.width()).arg(actualSize.height())
-                        .arg(pixmap.devicePixelRatio());
-            }
-            pixmapLabel->setToolTip(toolTip);
-        }
-    }
-}
-//! [5]
diff --git a/examples/widgets/widgets/icons/iconpreviewarea.h b/examples/widgets/widgets/icons/iconpreviewarea.h
deleted file mode 100644
index c59ebc42ba2..00000000000
--- a/examples/widgets/widgets/icons/iconpreviewarea.h
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef ICONPREVIEWAREA_H
-#define ICONPREVIEWAREA_H
-
-#include <QIcon>
-#include <QWidget>
-#include <QStringList>
-#include <QList>
-
-QT_BEGIN_NAMESPACE
-class QLabel;
-QT_END_NAMESPACE
-
-//! [0]
-class IconPreviewArea : public QWidget
-{
-    Q_OBJECT
-
-public:
-    explicit IconPreviewArea(QWidget *parent = nullptr);
-
-    void setIcon(const QIcon &icon);
-    void setSize(const QSize &size);
-
-    static QList<QIcon::Mode> iconModes();
-    static QList<QIcon::State> iconStates();
-    static QStringList iconModeNames();
-    static QStringList iconStateNames();
-
-private:
-    QLabel *createHeaderLabel(const QString &text);
-    QLabel *createPixmapLabel();
-    void updatePixmapLabels();
-
-    enum { NumModes = 4, NumStates = 2 };
-
-    QIcon icon;
-    QSize size;
-    QLabel *stateLabels[NumStates];
-    QLabel *modeLabels[NumModes];
-    QLabel *pixmapLabels[NumModes][NumStates];
-};
-//! [0]
-
-#endif
diff --git a/examples/widgets/widgets/icons/icons.pro b/examples/widgets/widgets/icons/icons.pro
deleted file mode 100644
index 243ce6b0928..00000000000
--- a/examples/widgets/widgets/icons/icons.pro
+++ /dev/null
@@ -1,20 +0,0 @@
-QT += widgets
-requires(qtConfig(combobox))
-
-HEADERS       = iconpreviewarea.h \
-                iconsizespinbox.h \
-                imagedelegate.h \
-                mainwindow.h
-SOURCES       = iconpreviewarea.cpp \
-                iconsizespinbox.cpp \
-                imagedelegate.cpp \
-                main.cpp \
-                mainwindow.cpp
-
-DEFINES += SRCDIR=\\\"$$PWD/\\\"
-
-EXAMPLE_FILES = images/*
-
-# install
-target.path = $$[QT_INSTALL_EXAMPLES]/widgets/widgets/icons
-INSTALLS += target
diff --git a/examples/widgets/widgets/icons/iconsizespinbox.cpp b/examples/widgets/widgets/icons/iconsizespinbox.cpp
deleted file mode 100644
index 16c88f4dd07..00000000000
--- a/examples/widgets/widgets/icons/iconsizespinbox.cpp
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "iconsizespinbox.h"
-
-#include <QRegularExpression>
-
-//! [0]
-IconSizeSpinBox::IconSizeSpinBox(QWidget *parent)
-    : QSpinBox(parent)
-{
-}
-//! [0]
-
-//! [1]
-int IconSizeSpinBox::valueFromText(const QString &text) const
-{
-    static const QRegularExpression regExp(tr("(\\d+)(\\s*[xx]\\s*\\d+)?"));
-    Q_ASSERT(regExp.isValid());
-
-    const QRegularExpressionMatch match = regExp.match(text);
-    if (match.isValid())
-        return match.captured(1).toInt();
-    return 0;
-}
-//! [1]
-
-//! [2]
-QString IconSizeSpinBox::textFromValue(int value) const
-{
-    return tr("%1 x %1").arg(value);
-}
-//! [2]
diff --git a/examples/widgets/widgets/icons/iconsizespinbox.h b/examples/widgets/widgets/icons/iconsizespinbox.h
deleted file mode 100644
index ac304b47941..00000000000
--- a/examples/widgets/widgets/icons/iconsizespinbox.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef ICONSIZESPINBOX_H
-#define ICONSIZESPINBOX_H
-
-#include <QSpinBox>
-
-//! [0]
-class IconSizeSpinBox : public QSpinBox
-{
-    Q_OBJECT
-
-public:
-    explicit IconSizeSpinBox(QWidget *parent = nullptr);
-
-    int valueFromText(const QString &text) const override;
-    QString textFromValue(int value) const override;
-};
-//! [0]
-
-#endif
diff --git a/examples/widgets/widgets/icons/imagedelegate.cpp b/examples/widgets/widgets/icons/imagedelegate.cpp
deleted file mode 100644
index ec3c227c713..00000000000
--- a/examples/widgets/widgets/icons/imagedelegate.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "imagedelegate.h"
-#include "iconpreviewarea.h"
-
-#include <QComboBox>
-
-//! [0]
-ImageDelegate::ImageDelegate(QObject *parent)
-    : QStyledItemDelegate(parent)
-{}
-//! [0]
-
-//! [1]
-QWidget *ImageDelegate::createEditor(QWidget *parent,
-                                     const QStyleOptionViewItem & /* option */,
-                                     const QModelIndex &index) const
-{
-    QComboBox *comboBox = new QComboBox(parent);
-    if (index.column() == 1)
-        comboBox->addItems(IconPreviewArea::iconModeNames());
-    else if (index.column() == 2)
-        comboBox->addItems(IconPreviewArea::iconStateNames());
-
-    connect(comboBox, &QComboBox::activated,
-            this, &ImageDelegate::emitCommitData);
-
-    return comboBox;
-}
-//! [1]
-
-//! [2]
-void ImageDelegate::setEditorData(QWidget *editor,
-                                  const QModelIndex &index) const
-{
-    QComboBox *comboBox = qobject_cast<QComboBox *>(editor);
-    if (!comboBox)
-        return;
-
-    int pos = comboBox->findText(index.model()->data(index).toString(),
-                                 Qt::MatchExactly);
-    comboBox->setCurrentIndex(pos);
-}
-//! [2]
-
-//! [3]
-void ImageDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
-                                 const QModelIndex &index) const
-{
-    QComboBox *comboBox = qobject_cast<QComboBox *>(editor);
-    if (!comboBox)
-        return;
-
-    model->setData(index, comboBox->currentText());
-}
-//! [3]
-
-//! [4]
-void ImageDelegate::emitCommitData()
-{
-    emit commitData(qobject_cast<QWidget *>(sender()));
-}
-//! [4]
diff --git a/examples/widgets/widgets/icons/imagedelegate.h b/examples/widgets/widgets/icons/imagedelegate.h
deleted file mode 100644
index 29707e68c65..00000000000
--- a/examples/widgets/widgets/icons/imagedelegate.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef IMAGEDELEGATE_H
-#define IMAGEDELEGATE_H
-
-#include <QStyledItemDelegate>
-
-//! [0]
-class ImageDelegate : public QStyledItemDelegate
-{
-    Q_OBJECT
-
-public:
-    explicit ImageDelegate(QObject *parent = nullptr);
-//! [0]
-
-//! [1]
-    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
-                          const QModelIndex &index) const override;
-    void setEditorData(QWidget *editor, const QModelIndex &index) const override;
-    void setModelData(QWidget *editor, QAbstractItemModel *model,
-                      const QModelIndex &index) const override;
-
-//! [1] //! [2]
-private slots:
-    void emitCommitData();
-//! [2]
-};
-
-#endif
diff --git a/examples/widgets/widgets/icons/images/designer.png b/examples/widgets/widgets/icons/images/designer.png
deleted file mode 100644
index 9f8578b49e6..00000000000
--- a/examples/widgets/widgets/icons/images/designer.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/find_disabled.png b/examples/widgets/widgets/icons/images/find_disabled.png
deleted file mode 100644
index e85e33fe05a..00000000000
--- a/examples/widgets/widgets/icons/images/find_disabled.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/find_normal.png b/examples/widgets/widgets/icons/images/find_normal.png
deleted file mode 100644
index 728c27f9051..00000000000
--- a/examples/widgets/widgets/icons/images/find_normal.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_off_128x128.png b/examples/widgets/widgets/icons/images/monkey_off_128x128.png
deleted file mode 100644
index f8782672879..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_off_128x128.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_off_16x16.png b/examples/widgets/widgets/icons/images/monkey_off_16x16.png
deleted file mode 100644
index 0ac57d7d4f9..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_off_16x16.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_off_32x32.png b/examples/widgets/widgets/icons/images/monkey_off_32x32.png
deleted file mode 100644
index 1f7fab694c1..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_off_32x32.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_off_64x64.png b/examples/widgets/widgets/icons/images/monkey_off_64x64.png
deleted file mode 100644
index 47d8f6de354..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_off_64x64.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_on_128x128.png b/examples/widgets/widgets/icons/images/monkey_on_128x128.png
deleted file mode 100644
index 8e1c7468bf6..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_on_128x128.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_on_16x16.png b/examples/widgets/widgets/icons/images/monkey_on_16x16.png
deleted file mode 100644
index 082e8527f1b..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_on_16x16.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_on_32x32.png b/examples/widgets/widgets/icons/images/monkey_on_32x32.png
deleted file mode 100644
index bf9acc6caee..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_on_32x32.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/monkey_on_64x64.png b/examples/widgets/widgets/icons/images/monkey_on_64x64.png
deleted file mode 100644
index 990f604d98c..00000000000
--- a/examples/widgets/widgets/icons/images/monkey_on_64x64.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/qt_extended_16x16.png b/examples/widgets/widgets/icons/images/qt_extended_16x16.png
deleted file mode 100644
index 30bcb45ed28..00000000000
--- a/examples/widgets/widgets/icons/images/qt_extended_16x16.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/qt_extended_32x32.png b/examples/widgets/widgets/icons/images/qt_extended_32x32.png
deleted file mode 100644
index d609c1e1e5b..00000000000
--- a/examples/widgets/widgets/icons/images/qt_extended_32x32.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/images/qt_extended_48x48.png b/examples/widgets/widgets/icons/images/qt_extended_48x48.png
deleted file mode 100644
index 0e524fed5fa..00000000000
--- a/examples/widgets/widgets/icons/images/qt_extended_48x48.png
+++ /dev/null
diff --git a/examples/widgets/widgets/icons/main.cpp b/examples/widgets/widgets/icons/main.cpp
deleted file mode 100644
index b7ed18ff94f..00000000000
--- a/examples/widgets/widgets/icons/main.cpp
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include <QApplication>
-#include <QCommandLineParser>
-#include <QScreen>
-
-#include "mainwindow.h"
-
-//! [45]
-int main(int argc, char *argv[])
-{
-    QApplication app(argc, argv);
-    QCoreApplication::setApplicationName(MainWindow::tr("Icons"));
-    QCoreApplication::setApplicationVersion(QT_VERSION_STR);
-    QCommandLineParser commandLineParser;
-    commandLineParser.setSingleDashWordOptionMode(QCommandLineParser::ParseAsLongOptions);
-    commandLineParser.addHelpOption();
-    commandLineParser.addVersionOption();
-        commandLineParser.addPositionalArgument(MainWindow::tr("[file]"), MainWindow::tr("Icon file(s) to open."));
-    commandLineParser.process(QCoreApplication::arguments());
-
-    MainWindow mainWin;
-    if (!commandLineParser.positionalArguments().isEmpty())
-        mainWin.loadImages(commandLineParser.positionalArguments());
-
-    const QRect availableGeometry = mainWin.screen()->availableGeometry();
-    mainWin.resize(availableGeometry.width() / 2, availableGeometry.height() * 2 / 3);
-    mainWin.move((availableGeometry.width() - mainWin.width()) / 2, (availableGeometry.height() - mainWin.height()) / 2);
-
-    mainWin.show();
-    return app.exec();
-}
-//! [45]
diff --git a/examples/widgets/widgets/icons/mainwindow.cpp b/examples/widgets/widgets/icons/mainwindow.cpp
deleted file mode 100644
index f893575f762..00000000000
--- a/examples/widgets/widgets/icons/mainwindow.cpp
+++ /dev/null
@@ -1,478 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "mainwindow.h"
-#include "iconpreviewarea.h"
-#include "iconsizespinbox.h"
-#include "imagedelegate.h"
-
-#include <QActionGroup>
-#include <QApplication>
-#include <QButtonGroup>
-#include <QCheckBox>
-#include <QFileDialog>
-#include <QHeaderView>
-#include <QFormLayout>
-#include <QGridLayout>
-#include <QGroupBox>
-#include <QImageReader>
-#include <QLabel>
-#include <QMenuBar>
-#include <QMessageBox>
-#include <QRadioButton>
-#include <QScreen>
-#include <QStandardPaths>
-#include <QStyleFactory>
-#include <QTableWidget>
-#include <QWindow>
-
-//! [40]
-enum { OtherSize = QStyle::PM_CustomBase };
-//! [40]
-
-//! [0]
-MainWindow::MainWindow(QWidget *parent)
-    : QMainWindow(parent)
-{
-    QWidget *centralWidget = new QWidget(this);
-    setCentralWidget(centralWidget);
-
-    createActions();
-
-    QGridLayout *mainLayout = new QGridLayout(centralWidget);
-
-    QGroupBox *previewGroupBox = new QGroupBox(tr("Preview"));
-    previewArea = new IconPreviewArea(previewGroupBox);
-    QVBoxLayout *previewLayout = new QVBoxLayout(previewGroupBox);
-    previewLayout->addWidget(previewArea);
-
-    mainLayout->addWidget(previewGroupBox, 0, 0, 1, 2);
-    mainLayout->addWidget(createImagesGroupBox(), 1, 0);
-    QVBoxLayout *vBox = new QVBoxLayout;
-    vBox->addWidget(createIconSizeGroupBox());
-    vBox->addWidget(createHighDpiIconSizeGroupBox());
-    vBox->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding));
-    mainLayout->addLayout(vBox, 1, 1);
-    createContextMenu();
-
-    setWindowTitle(tr("Icons"));
-    checkCurrentStyle();
-    sizeButtonGroup->button(OtherSize)->click();
-}
-//! [0]
-
-//! [44]
-void MainWindow::show()
-{
-    QMainWindow::show();
-    connect(windowHandle(), &QWindow::screenChanged, this, &MainWindow::screenChanged);
-    screenChanged();
-}
-//! [44]
-
-//! [1]
-void MainWindow::about()
-{
-    QMessageBox::about(this, tr("About Icons"),
-            tr("The <b>Icons</b> example illustrates how Qt renders an icon in "
-               "different modes (active, normal, disabled, and selected) and "
-               "states (on and off) based on a set of images."));
-}
-//! [1]
-
-//! [2]
-void MainWindow::changeStyle(bool checked)
-{
-    if (!checked)
-        return;
-
-    const QAction *action = qobject_cast<QAction *>(sender());
-//! [2] //! [3]
-    QStyle *style = QStyleFactory::create(action->data().toString());
-//! [3] //! [4]
-    Q_ASSERT(style);
-    QApplication::setStyle(style);
-
-    const QList<QAbstractButton*> buttons = sizeButtonGroup->buttons();
-    for (QAbstractButton *button : buttons) {
-        const QStyle::PixelMetric metric = static_cast<QStyle::PixelMetric>(sizeButtonGroup->id(button));
-        const int value = style->pixelMetric(metric);
-        switch (metric) {
-        case QStyle::PM_SmallIconSize:
-            button->setText(tr("Small (%1 x %1)").arg(value));
-            break;
-        case QStyle::PM_LargeIconSize:
-            button->setText(tr("Large (%1 x %1)").arg(value));
-            break;
-        case QStyle::PM_ToolBarIconSize:
-            button->setText(tr("Toolbars (%1 x %1)").arg(value));
-            break;
-        case QStyle::PM_ListViewIconSize:
-            button->setText(tr("List views (%1 x %1)").arg(value));
-            break;
-        case QStyle::PM_IconViewIconSize:
-            button->setText(tr("Icon views (%1 x %1)").arg(value));
-            break;
-        case QStyle::PM_TabBarIconSize:
-            button->setText(tr("Tab bars (%1 x %1)").arg(value));
-            break;
-        default:
-            break;
-        }
-    }
-
-    triggerChangeSize();
-}
-//! [4]
-
-//! [5]
-void MainWindow::changeSize(QAbstractButton *button, bool checked)
-{
-    if (!checked)
-        return;
-
-    const int index = sizeButtonGroup->id(button);
-    const bool other = index == int(OtherSize);
-    const int extent = other
-        ? otherSpinBox->value()
-        : QApplication::style()->pixelMetric(static_cast<QStyle::PixelMetric>(index));
-
-    previewArea->setSize(QSize(extent, extent));
-    otherSpinBox->setEnabled(other);
-}
-
-void MainWindow::triggerChangeSize()
-{
-    changeSize(sizeButtonGroup->checkedButton(), true);
-}
-//! [5]
-
-//! [6]
-void MainWindow::changeIcon()
-{
-    QIcon icon;
-
-    for (int row = 0; row < imagesTable->rowCount(); ++row) {
-        const QTableWidgetItem *fileItem = imagesTable->item(row, 0);
-        const QTableWidgetItem *modeItem = imagesTable->item(row, 1);
-        const QTableWidgetItem *stateItem = imagesTable->item(row, 2);
-
-        if (fileItem->checkState() == Qt::Checked) {
-            const int modeIndex = IconPreviewArea::iconModeNames().indexOf(modeItem->text());
-            Q_ASSERT(modeIndex >= 0);
-            const int stateIndex = IconPreviewArea::iconStateNames().indexOf(stateItem->text());
-            Q_ASSERT(stateIndex >= 0);
-            const QIcon::Mode mode = IconPreviewArea::iconModes().at(modeIndex);
-            const QIcon::State state = IconPreviewArea::iconStates().at(stateIndex);
-//! [6]
-
-//! [8]
-            const QString fileName = fileItem->data(Qt::UserRole).toString();
-            QImage image(fileName);
-            if (!image.isNull())
-                icon.addPixmap(QPixmap::fromImage(image), mode, state);
-//! [8]
-        }
-    }
-//! [11]
-    previewArea->setIcon(icon);
-//! [11]
-}
-
-void MainWindow::addSampleImages()
-{
-    addImages(QLatin1String(SRCDIR) + QLatin1String("/images"));
-}
-
-void MainWindow::addOtherImages()
-{
-    static bool firstInvocation = true;
-    QString directory;
-    if (firstInvocation) {
-        firstInvocation = false;
-        directory = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation).value(0, QString());
-    }
-    addImages(directory);
-}
-
-//! [12]
-void MainWindow::addImages(const QString &directory)
-{
-    QFileDialog fileDialog(this, tr("Open Images"), directory);
-    QStringList mimeTypeFilters;
-    const QList<QByteArray> mimeTypes = QImageReader::supportedMimeTypes();
-    for (const QByteArray &mimeTypeName : mimeTypes)
-        mimeTypeFilters.append(mimeTypeName);
-    mimeTypeFilters.sort();
-    fileDialog.setMimeTypeFilters(mimeTypeFilters);
-    fileDialog.selectMimeTypeFilter(QLatin1String("image/png"));
-    fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
-    fileDialog.setFileMode(QFileDialog::ExistingFiles);
-    if (!nativeFileDialogAct->isChecked())
-        fileDialog.setOption(QFileDialog::DontUseNativeDialog);
-    if (fileDialog.exec() == QDialog::Accepted)
-        loadImages(fileDialog.selectedFiles());
-//! [12]
-}
-
-void MainWindow::loadImages(const QStringList &fileNames)
-{
-    for (const QString &fileName : fileNames) {
-        const int row = imagesTable->rowCount();
-        imagesTable->setRowCount(row + 1);
-//! [13]
-        const QFileInfo fileInfo(fileName);
-        const QString imageName = fileInfo.baseName();
-        const QString fileName2x = fileInfo.absolutePath()
-            + QLatin1Char('/') + imageName + QLatin1String("@2x.") + fileInfo.suffix();
-        const QFileInfo fileInfo2x(fileName2x);
-        const QImage image(fileName);
-        const QString toolTip =
-            tr("Directory: %1\nFile: %2\nFile@2x: %3\nSize: %4x%5")
-               .arg(QDir::toNativeSeparators(fileInfo.absolutePath()), fileInfo.fileName())
-               .arg(fileInfo2x.exists() ? fileInfo2x.fileName() : tr("<None>"))
-               .arg(image.width()).arg(image.height());
-        QTableWidgetItem *fileItem = new QTableWidgetItem(imageName);
-        fileItem->setData(Qt::UserRole, fileName);
-        fileItem->setIcon(QPixmap::fromImage(image));
-        fileItem->setFlags((fileItem->flags() | Qt::ItemIsUserCheckable) & ~Qt::ItemIsEditable);
-        fileItem->setToolTip(toolTip);
-//! [13]
-
-//! [15]
-        QIcon::Mode mode = QIcon::Normal;
-        QIcon::State state = QIcon::Off;
-        if (guessModeStateAct->isChecked()) {
-            if (imageName.contains(QLatin1String("_act"), Qt::CaseInsensitive))
-                mode = QIcon::Active;
-            else if (imageName.contains(QLatin1String("_dis"), Qt::CaseInsensitive))
-                mode = QIcon::Disabled;
-            else if (imageName.contains(QLatin1String("_sel"), Qt::CaseInsensitive))
-                mode = QIcon::Selected;
-
-            if (imageName.contains(QLatin1String("_on"), Qt::CaseInsensitive))
-                state = QIcon::On;
-//! [15]
-        }
-
-//! [18]
-        imagesTable->setItem(row, 0, fileItem);
-        QTableWidgetItem *modeItem =
-            new QTableWidgetItem(IconPreviewArea::iconModeNames().at(IconPreviewArea::iconModes().indexOf(mode)));
-        modeItem->setToolTip(toolTip);
-        imagesTable->setItem(row, 1, modeItem);
-        QTableWidgetItem *stateItem =
-            new QTableWidgetItem(IconPreviewArea::iconStateNames().at(IconPreviewArea::iconStates().indexOf(state)));
-        stateItem->setToolTip(toolTip);
-        imagesTable->setItem(row, 2, stateItem);
-        imagesTable->openPersistentEditor(modeItem);
-        imagesTable->openPersistentEditor(stateItem);
-
-        fileItem->setCheckState(Qt::Checked);
-//! [18]
-    }
-}
-
-//! [20]
-void MainWindow::removeAllImages()
-{
-    imagesTable->setRowCount(0);
-    changeIcon();
-}
-//! [20]
-
-//! [21]
-QWidget *MainWindow::createImagesGroupBox()
-{
-    QGroupBox *imagesGroupBox = new QGroupBox(tr("Images"));
-
-    imagesTable = new QTableWidget;
-    imagesTable->setSelectionMode(QAbstractItemView::NoSelection);
-    imagesTable->setItemDelegate(new ImageDelegate(this));
-//! [21]
-
-//! [22]
-    const QStringList labels({tr("Image"), tr("Mode"), tr("State")});
-
-    imagesTable->horizontalHeader()->setDefaultSectionSize(90);
-    imagesTable->setColumnCount(3);
-    imagesTable->setHorizontalHeaderLabels(labels);
-    imagesTable->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);
-    imagesTable->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Fixed);
-    imagesTable->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Fixed);
-    imagesTable->verticalHeader()->hide();
-//! [22]
-
-//! [24]
-    connect(imagesTable, &QTableWidget::itemChanged,
-            this, &MainWindow::changeIcon);
-
-    QVBoxLayout *layout = new QVBoxLayout(imagesGroupBox);
-    layout->addWidget(imagesTable);
-    return imagesGroupBox;
-//! [24]
-}
-
-//! [26]
-QWidget *MainWindow::createIconSizeGroupBox()
-{
-    QGroupBox *iconSizeGroupBox = new QGroupBox(tr("Icon Size"));
-
-    sizeButtonGroup = new QButtonGroup(this);
-    sizeButtonGroup->setExclusive(true);
-
-    connect(sizeButtonGroup, &QButtonGroup::buttonToggled,
-            this, &MainWindow::changeSize);
-
-    QRadioButton *smallRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(smallRadioButton, QStyle::PM_SmallIconSize);
-    QRadioButton *largeRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(largeRadioButton, QStyle::PM_LargeIconSize);
-    QRadioButton *toolBarRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(toolBarRadioButton, QStyle::PM_ToolBarIconSize);
-    QRadioButton *listViewRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(listViewRadioButton, QStyle::PM_ListViewIconSize);
-    QRadioButton *iconViewRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(iconViewRadioButton, QStyle::PM_IconViewIconSize);
-    QRadioButton *tabBarRadioButton = new QRadioButton;
-    sizeButtonGroup->addButton(tabBarRadioButton, QStyle::PM_TabBarIconSize);
-    QRadioButton *otherRadioButton = new QRadioButton(tr("Other:"));
-    sizeButtonGroup->addButton(otherRadioButton, OtherSize);
-    otherSpinBox = new IconSizeSpinBox;
-    otherSpinBox->setRange(8, 256);
-    const QString spinBoxToolTip =
-        tr("Enter a custom size within %1..%2")
-           .arg(otherSpinBox->minimum()).arg(otherSpinBox->maximum());
-    otherSpinBox->setValue(64);
-    otherSpinBox->setToolTip(spinBoxToolTip);
-    otherRadioButton->setToolTip(spinBoxToolTip);
-//! [26]
-
-//! [27]
-    connect(otherSpinBox, &QSpinBox::valueChanged,
-            this, &MainWindow::triggerChangeSize);
-
-    QHBoxLayout *otherSizeLayout = new QHBoxLayout;
-    otherSizeLayout->addWidget(otherRadioButton);
-    otherSizeLayout->addWidget(otherSpinBox);
-    otherSizeLayout->addStretch();
-
-    QGridLayout *layout = new QGridLayout(iconSizeGroupBox);
-    layout->addWidget(smallRadioButton, 0, 0);
-    layout->addWidget(largeRadioButton, 1, 0);
-    layout->addWidget(toolBarRadioButton, 2, 0);
-    layout->addWidget(listViewRadioButton, 0, 1);
-    layout->addWidget(iconViewRadioButton, 1, 1);
-    layout->addWidget(tabBarRadioButton, 2, 1);
-    layout->addLayout(otherSizeLayout, 3, 0, 1, 2);
-    layout->setRowStretch(4, 1);
-    return iconSizeGroupBox;
-//! [27]
-}
-
-void MainWindow::screenChanged()
-{
-    devicePixelRatioLabel->setText(QString::number(devicePixelRatio()));
-    if (const QWindow *window = windowHandle()) {
-        const QScreen *screen = window->screen();
-        const QString screenDescription =
-            tr("\"%1\" (%2x%3)").arg(screen->name())
-               .arg(screen->geometry().width()).arg(screen->geometry().height());
-        screenNameLabel->setText(screenDescription);
-    }
-    changeIcon();
-}
-
-QWidget *MainWindow::createHighDpiIconSizeGroupBox()
-{
-    QGroupBox *highDpiGroupBox = new QGroupBox(tr("High DPI Scaling"));
-    QFormLayout *layout = new QFormLayout(highDpiGroupBox);
-    devicePixelRatioLabel = new QLabel(highDpiGroupBox);
-    screenNameLabel = new QLabel(highDpiGroupBox);
-    layout->addRow(tr("Screen:"), screenNameLabel);
-    layout->addRow(tr("Device pixel ratio:"), devicePixelRatioLabel);
-    return highDpiGroupBox;
-}
-
-//! [28]
-void MainWindow::createActions()
-{
-    QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
-
-    addSampleImagesAct = new QAction(tr("Add &Sample Images..."), this);
-    addSampleImagesAct->setShortcut(tr("Ctrl+A"));
-    connect(addSampleImagesAct, &QAction::triggered, this, &MainWindow::addSampleImages);
-    fileMenu->addAction(addSampleImagesAct);
-
-    addOtherImagesAct = new QAction(tr("&Add Images..."), this);
-    addOtherImagesAct->setShortcut(QKeySequence::Open);
-    connect(addOtherImagesAct, &QAction::triggered, this, &MainWindow::addOtherImages);
-    fileMenu->addAction(addOtherImagesAct);
-
-    removeAllImagesAct = new QAction(tr("&Remove All Images"), this);
-    removeAllImagesAct->setShortcut(tr("Ctrl+R"));
-    connect(removeAllImagesAct, &QAction::triggered,
-            this, &MainWindow::removeAllImages);
-    fileMenu->addAction(removeAllImagesAct);
-
-    fileMenu->addSeparator();
-
-    QAction *exitAct = fileMenu->addAction(tr("&Quit"), qApp, &QCoreApplication::quit);
-    exitAct->setShortcuts(QKeySequence::Quit);
-
-    QMenu *viewMenu = menuBar()->addMenu(tr("&View"));
-
-    styleActionGroup = new QActionGroup(this);
-    const QStringList styleKeys = QStyleFactory::keys();
-    for (const QString &styleName : styleKeys) {
-        QAction *action = new QAction(tr("%1 Style").arg(styleName), styleActionGroup);
-        action->setData(styleName);
-        action->setCheckable(true);
-        connect(action, &QAction::triggered, this, &MainWindow::changeStyle);
-        viewMenu->addAction(action);
-    }
-
-    QMenu *settingsMenu = menuBar()->addMenu(tr("&Settings"));
-
-    guessModeStateAct = new QAction(tr("&Guess Image Mode/State"), this);
-    guessModeStateAct->setCheckable(true);
-    guessModeStateAct->setChecked(true);
-    settingsMenu->addAction(guessModeStateAct);
-
-    nativeFileDialogAct = new QAction(tr("&Use Native File Dialog"), this);
-    nativeFileDialogAct->setCheckable(true);
-    nativeFileDialogAct->setChecked(true);
-    settingsMenu->addAction(nativeFileDialogAct);
-
-    QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
-    helpMenu->addAction(tr("&About"), this, &MainWindow::about);
-    helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt);
-}
-//! [28]
-
-//! [30]
-void MainWindow::createContextMenu()
-{
-    imagesTable->setContextMenuPolicy(Qt::ActionsContextMenu);
-    imagesTable->addAction(addSampleImagesAct);
-    imagesTable->addAction(addOtherImagesAct);
-    imagesTable->addAction(removeAllImagesAct);
-}
-//! [30]
-
-//! [31]
-void MainWindow::checkCurrentStyle()
-{
-    const QList<QAction *> actions = styleActionGroup->actions();
-    for (QAction *action : actions) {
-        const QString styleName = action->data().toString();
-        const std::unique_ptr<QStyle> candidate{QStyleFactory::create(styleName)};
-        Q_ASSERT(candidate);
-        if (candidate->metaObject()->className()
-                == QApplication::style()->metaObject()->className()) {
-            action->trigger();
-            return;
-        }
-    }
-}
-//! [31]
diff --git a/examples/widgets/widgets/icons/mainwindow.h b/examples/widgets/widgets/icons/mainwindow.h
deleted file mode 100644
index fb6e0493f74..00000000000
--- a/examples/widgets/widgets/icons/mainwindow.h
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include <QIcon>
-#include <QList>
-#include <QMainWindow>
-#include <QPixmap>
-
-QT_BEGIN_NAMESPACE
-class QAction;
-class QActionGroup;
-class QLabel;
-class QButtonGroup;
-class QTableWidget;
-class QAbstractButton;
-QT_END_NAMESPACE
-class IconPreviewArea;
-class IconSizeSpinBox;
-
-//! [0]
-class MainWindow : public QMainWindow
-{
-    Q_OBJECT
-
-public:
-    MainWindow(QWidget *parent = nullptr);
-
-    void loadImages(const QStringList &fileNames);
-
-    void show();
-
-private slots:
-    void about();
-    void changeStyle(bool checked);
-    void changeSize(QAbstractButton *button, bool);
-    void triggerChangeSize();
-    void changeIcon();
-    void addSampleImages();
-    void addOtherImages();
-    void removeAllImages();
-    void screenChanged();
-
-private:
-    QWidget *createImagesGroupBox();
-    QWidget *createIconSizeGroupBox();
-    QWidget *createHighDpiIconSizeGroupBox();
-    void createActions();
-    void createContextMenu();
-    void checkCurrentStyle();
-    void addImages(const QString &directory);
-
-    IconPreviewArea *previewArea;
-
-    QTableWidget *imagesTable;
-
-    QButtonGroup *sizeButtonGroup;
-    IconSizeSpinBox *otherSpinBox;
-
-    QLabel *devicePixelRatioLabel;
-    QLabel *screenNameLabel;
-
-    QAction *addOtherImagesAct;
-    QAction *addSampleImagesAct;
-    QAction *removeAllImagesAct;
-    QAction *guessModeStateAct;
-    QAction *nativeFileDialogAct;
-    QActionGroup *styleActionGroup;
-};
-//! [0]
-
-#endif
diff --git a/examples/widgets/widgets/widgets.pro b/examples/widgets/widgets/widgets.pro
index f67184ce63e..1d48debfd27 100644
--- a/examples/widgets/widgets/widgets.pro
+++ b/examples/widgets/widgets/widgets.pro
@@ -3,7 +3,6 @@ SUBDIRS       = analogclock \
                 calculator \
                 calendarwidget \
                 groupbox \
-                icons \
                 imageviewer \
                 lineedits \
                 movie \