Qt Designer: Remove worldtimeclock examples

The functionality is sufficiently demonstrated by the existing custom
widget plugin examples.

Task-number: QTBUG-110447
Change-Id: I09198bba46ebe8da03c9e21192588e6010bec541
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
(cherry picked from commit 1f859ca1ac6d337aedde2fe8eed74266416ae0d1)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

20 files changed, 9 insertions, 860 deletions

diff --git a/examples/designer/CMakeLists.txt b/examples/designer/CMakeLists.txt
index 32848c69e..b98f6ea5f 100644
--- a/examples/designer/CMakeLists.txt
+++ b/examples/designer/CMakeLists.txt
@@ -9,11 +9,9 @@ qt_exclude_tool_directories_from_default_target(
 qt_internal_add_example(calculatorform)
 if(QT_BUILD_SHARED_LIBS AND NOT solaris-cc_x_)
     qt_internal_add_example(calculatorbuilder)
-    qt_internal_add_example(worldtimeclockbuilder)
 endif()
 if(QT_BUILD_SHARED_LIBS AND NOT CMAKE_CROSSCOMPILING)
     qt_internal_add_example(containerextension)
     qt_internal_add_example(customwidgetplugin)
     qt_internal_add_example(taskmenuextension)
-    qt_internal_add_example(worldtimeclockplugin)
 endif()
diff --git a/examples/designer/customwidgetplugin/analogclock.h b/examples/designer/customwidgetplugin/analogclock.h
index 073f99e71..c3eabf584 100644
--- a/examples/designer/customwidgetplugin/analogclock.h
+++ b/examples/designer/customwidgetplugin/analogclock.h
@@ -7,15 +7,19 @@
 #include <QWidget>
 #include <QtUiPlugin/QDesignerExportWidget>
 
+//! [0]
 class QDESIGNER_WIDGET_EXPORT AnalogClock : public QWidget
 {
     Q_OBJECT
+//! [0]
 
 public:
     explicit AnalogClock(QWidget *parent = nullptr);
 
 protected:
     void paintEvent(QPaintEvent *event) override;
+//! [1]
 };
+//! [1]
 
 #endif
diff --git a/examples/designer/designer.pro b/examples/designer/designer.pro
index e7a668195..5f9cc2769 100644
--- a/examples/designer/designer.pro
+++ b/examples/designer/designer.pro
@@ -5,9 +5,7 @@ SUBDIRS     = calculatorform
         SUBDIRS += calculatorbuilder \
                    containerextension \
                    customwidgetplugin \
-                   taskmenuextension \
-                   worldtimeclockbuilder \
-                   worldtimeclockplugin
+                   taskmenuextension
 }
 
 # the sun cc compiler has a problem with the include lines for the form.prf
diff --git a/examples/designer/doc/snippets/doc_src_examples_worldtimeclockplugin.pro b/examples/designer/doc/snippets/doc_src_examples_worldtimeclockplugin.pro
deleted file mode 100644
index 903cef948..000000000
--- a/examples/designer/doc/snippets/doc_src_examples_worldtimeclockplugin.pro
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#! [0]
-target.path = $$[QT_INSTALL_PLUGINS]/designer
-INSTALLS += target
-#! [0]
diff --git a/examples/designer/doc/src/worldtimeclockbuilder.qdoc b/examples/designer/doc/src/worldtimeclockbuilder.qdoc
deleted file mode 100644
index b732054b0..000000000
--- a/examples/designer/doc/src/worldtimeclockbuilder.qdoc
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
-
-/*!
-  \example worldtimeclockbuilder
-  \ingroup examples-designer
-  \title World Time Clock Builder Example
-
-  \brief Creating forms with Qt Designer that contain custom widgets that can be
-  dynamically generated at run-time.
-
-  \image worldtimeclockbuilder-example.png
-
-  This example uses a form containing the custom widget plugin described in the
-  \l{worldtimeclockplugin}{World Time Clock Plugin} example, and
-  dynamically generates a user interface using the QUiLoader class, part of
-  the QtUiTools module.
-
-  \section1 Preparation
-
-  As with the \l{calculatorbuilder}{Calculator Builder} example, the
-  project file for this example needs to include the appropriate definitions
-  to ensure that it is built against the required Qt modules.
-
-  \snippet worldtimeclockbuilder/worldtimeclockbuilder.pro 0
-
-  By appending \c form to the \c CONFIG declaration, we instruct \c qmake to
-  generate a dependency on the \c libQtUiTools library containing the QtUiTools
-  classes.
-
-  Note that we do not inform \c qmake about any UI files, and so none will
-  be processed and built into the application. The resource file contains
-  an entry for the particular form that we wish to use:
-
-  \quotefile worldtimeclockbuilder/worldtimeclockbuilder.qrc
-
-  Forms do not need to be included with the application in this way. We only
-  include a form in the application's resources for convenience, and to keep
-  the example short.
-
-  \section1 Loading and Building the Form
-
-  Since this example only loads and displays a pre-prepared form, all of the
-  work can be done in the main() function. We are using a class from the
-  QtUiTools library so, in addition to any other Qt classes that are normally
-  required to write an application, we must include the appropriate header
-  file:
-
-  \snippet worldtimeclockbuilder/main.cpp 0
-
-  The main function initializes the resource system with the Q_INIT_RESOURCE()
-  macro and constructs an QApplication instance in the usual way:
-
-  \snippet worldtimeclockbuilder/main.cpp 1
-
-  We construct a QUiLoader object to handle the form we want to use.
-
-  The form itself is obtained from the resource file system using the path
-  defined in the resource file. We use the form loader to load and construct
-  the form:
-
-  \snippet worldtimeclockbuilder/main.cpp 2
-
-  Once the form has been loaded, the resource file can be closed and the
-  widget is shown.
-
-  \snippet worldtimeclockbuilder/main.cpp 3
-
-  The form loader ensures that all the signal and slot connections between
-  objects in the form are set up correctly when the form is loaded. As a
-  result, the time is updated by the World Time Clock widget, and the time
-  zone spin box can be used to change the position of the hour hand.
-*/
diff --git a/examples/designer/doc/src/worldtimeclockplugin.qdoc b/examples/designer/doc/src/worldtimeclockplugin.qdoc
deleted file mode 100644
index 25198f261..000000000
--- a/examples/designer/doc/src/worldtimeclockplugin.qdoc
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
-
-/*!
-    \example worldtimeclockplugin
-    \ingroup examples-designer
-    \title World Time Clock Plugin Example
-
-    \brief Creating a custom widget plugin for \QD that uses signals and slots.
-
-    \image worldtimeclockplugin-example.png
-
-    In this example, we simply extend the \l
-    {customwidgetplugin}{Custom Widget Plugin} example and
-    its custom widget (based on the \l{widgets/analogclock}{Analog
-    Clock} example), by introducing the concept of signals and slots.
-
-    The World Time Clock Plugin example consists of two classes:
-
-    \list
-    \li \c WorldTimeClock is a custom clock widget with hour and
-       minute hands that is automatically updated every few seconds.
-    \li \c WorldTimeClockPlugin exposes the \c WorldTimeClock class to \QD.
-    \endlist
-
-    First we will take a look at the \c WorldTimeClock class which
-    extends the \l {customwidgetplugin}{Custom Widget Plugin}
-    example's \c AnalogClock class by providing a signal and a
-    slot. Then we will take a quick look at the \c
-    WorldTimeClockPlugin class, but this class is in most parts
-    identical to the \l {customwidgetplugin}{Custom Widget
-    Plugin} example's implementation.
-
-    Finally we take a look at the plugin's project file. The project
-    file for custom widget plugins needs some additional information
-    to ensure that they will work within \QD. This is also covered in
-    the \l {customwidgetplugin}{Custom Widget Plugin} example,
-    but due to its importance (custom widget plugins rely on
-    components supplied with \QD which must be specified in the
-    project file that we use) we will repeat it here.
-
-    \section1 WorldTimeClock Class
-
-    The \c WorldTimeClock class inherits QWidget, and is a custom
-    clock widget with hour and minute hands that is automatically
-    updated every few seconds. What makes this example different from
-    the \l {customwidgetplugin}{Custom Widget Plugin}
-    example, is the introduction of the signal and slot in the custom
-    widget class:
-
-    \snippet worldtimeclockplugin/worldtimeclock.h 1
-
-    Note the use of the QDESIGNER_WIDGET_EXPORT macro. This is needed
-    to ensure that \QD can create instances of the widget on some
-    platforms, but it is a good idea to use it on all platforms.
-
-    We declare the \c setTimeZone() slot with an associated \c
-    timeZoneOffset variable, and we declare an \c updated() signal
-    which takes the current time as argument and is emitted whenever
-    the widget is repainted.
-
-    \image worldtimeclock-connection.png
-
-    In \QD's workspace we can then, for example, connect the \c
-    WorldTimeClock widget's \c updated() signal to a QTimeEdit's \l
-    {QDateTimeEdit::setTime()}{setTime()} slot using \QD's mode
-    for editing signal and slots.
-
-    \image worldtimeclock-signalandslot.png
-
-    We can also connect a QSpinBox's \l
-    {QSpinBox::valueChanged()}{valueChanged()} signal to the \c
-    WorldTimeClock's \c setTimeZone() slot.
-
-    \section1 WorldTimeClockPlugin Class
-
-    The \c WorldTimeClockPlugin class exposes the \c WorldTimeClock
-    class to \QD. Its definition is equivalent to the \l
-    {customwidgetplugin}{Custom Widget Plugin} example's
-    plugin class which is explained in detail. The only part of the
-    class definition that is specific to this particular custom widget
-    is the class name.
-
-    To ensure that Qt recognizes the widget as a plugin, export relevant
-    information about the widget by adding the \c Q_PLUGIN_METADATA() macro:
-
-    \snippet worldtimeclockplugin/worldtimeclockplugin.h 0
-
-    The plugin class provides \QD with basic information about our
-    plugin, such as its class name and its include file. Furthermore
-    it knows how to create instances of the \c WorldTimeClockPlugin
-    widget.  \c WorldTimeClockPlugin also defines the \l
-    {QDesignerCustomWidgetInterface::initialize()}{initialize()}
-    function which is called after the plugin is loaded into \QD. The
-    function's QDesignerFormEditorInterface parameter provides the
-    plugin with a gateway to all of \QD's API's.
-
-    The \c WorldTimeClockPlugin class inherits from both QObject and
-    QDesignerCustomWidgetInterface. It is important to remember, when
-    using multiple inheritance, to ensure that all the interfaces
-    (i.e. the classes that doesn't inherit Q_OBJECT) are made known to
-    the meta object system using the Q_INTERFACES() macro. This
-    enables \QD to use qobject_cast() to query for supported
-    interfaces using nothing but a QObject pointer.
-
-    The implementation of the \c WorldTimeClockPlugin is also
-    equivalent to the plugin interface implementation in the \l
-    {customwidgetplugin}{Custom Widget Plugin} example (only
-    the class name and the implementation of
-    QDesignerCustomWidgetInterface::domXml() differ). The main thing
-    to remember is to use the Q_PLUGIN_METADATA() macro to export the \c
-    WorldTimeClockPlugin class for use with \QD:
-
-    \snippet worldtimeclockplugin/worldtimeclockplugin.h 1
-
-    Without this macro, there is no way for Qt Designer to use the
-    widget.
-
-    \section1 Project files
-    \section2 CMake
-
-    The project files need to state that a plugin linking
-    to the \QD libraries is to be built:
-
-    \snippet worldtimeclockplugin/CMakeLists.txt 0
-    \codeline
-    \snippet worldtimeclockplugin/CMakeLists.txt 2
-
-    The link libraries list specifies \c Qt::UiPlugin. This indicates that
-    the plugin uses the abstract interfaces QDesignerCustomWidgetInterface
-    and QDesignerCustomWidgetCollectionInterface only and has no linkage
-    to the \QD libraries. When accessing other interfaces of \QD that have
-    linkage, \c Designer should be used instead; this ensures that the plugin
-    dynamically links to the \QD libraries and has a run-time dependency on
-    them.
-
-    The header and source files for the widget are declared in the
-    usual way:
-
-    \snippet worldtimeclockplugin/CMakeLists.txt 1
-
-    We provide an implementation of the plugin interface so that \QD
-    can use the custom widget. In this particular example we also
-    provide implementations of the container extension interface and
-    the extension factory.
-
-    It is important to ensure that the plugin is installed in a
-    location that is searched by \QD. We do this by specifying a
-    target path for the project and adding it to the list of items to
-    install:
-
-    \snippet worldtimeclockplugin/CMakeLists.txt 3
-    \snippet worldtimeclockplugin/CMakeLists.txt 4
-
-    The custom widget is created as a library. It will be
-    installed alongside the other \QD plugins when the project is
-    installed (using \c{ninja install} or an equivalent installation
-    procedure).
-
-    For more information about plugins, see the
-    \l {How to Create Qt Plugins} documentation.
-
-    \section2 qmake
-
-    The following example shows how to link a plugin to the \QD libraries:
-
-    \snippet worldtimeclockplugin/worldtimeclockplugin.pro 0
-    \codeline
-    \snippet worldtimeclockplugin/worldtimeclockplugin.pro 1
-
-    The \c QT variable contains the keyword \c uiplugin, which is
-    the equivalent of the \c Qt::UiPlugin library.
-
-    The following example shows how to add the header and source files of the
-    widget:
-
-    \snippet worldtimeclockplugin/worldtimeclockplugin.pro 2
-
-    The following example shows how to install a plugin to the \QD's plugin path:
-
-    \snippet worldtimeclockplugin/worldtimeclockplugin.pro 3
-*/
diff --git a/examples/designer/worldtimeclockbuilder/CMakeLists.txt b/examples/designer/worldtimeclockbuilder/CMakeLists.txt
deleted file mode 100644
index 8016d9505..000000000
--- a/examples/designer/worldtimeclockbuilder/CMakeLists.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-cmake_minimum_required(VERSION 3.16)
-project(worldtimeclockbuilder LANGUAGES CXX)
-
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTOUIC ON)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-    set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/designer/worldtimeclockbuilder")
-
-find_package(Qt6 REQUIRED COMPONENTS Core Gui UiTools Widgets)
-
-qt_add_executable(worldtimeclockbuilder
-    main.cpp
-)
-
-set_target_properties(worldtimeclockbuilder PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-
-target_link_libraries(worldtimeclockbuilder PUBLIC
-    Qt::Core
-    Qt::Gui
-    Qt::UiTools
-    Qt::Widgets
-)
-
-# Resources:
-set(worldtimeclockbuilder_resource_files
-    "form.ui"
-)
-
-qt6_add_resources(worldtimeclockbuilder "worldtimeclockbuilder"
-    PREFIX
-        "/forms"
-    FILES
-        ${worldtimeclockbuilder_resource_files}
-)
-
-install(TARGETS worldtimeclockbuilder
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/designer/worldtimeclockbuilder/form.ui b/examples/designer/worldtimeclockbuilder/form.ui
deleted file mode 100644
index e5be1d911..000000000
--- a/examples/designer/worldtimeclockbuilder/form.ui
+++ /dev/null
@@ -1,162 +0,0 @@
-<ui version="4.0" >
- <author></author>
- <comment></comment>
- <exportmacro></exportmacro>
- <class>WorldTimeForm</class>
- <widget class="QWidget" name="WorldTimeForm" >
-  <property name="geometry" >
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>400</width>
-    <height>300</height>
-   </rect>
-  </property>
-  <property name="windowTitle" >
-   <string>World Time Clock</string>
-  </property>
-  <layout class="QHBoxLayout" >
-   <property name="margin" >
-    <number>9</number>
-   </property>
-   <property name="spacing" >
-    <number>6</number>
-   </property>
-   <item>
-    <widget class="WorldTimeClock" name="worldTimeClock" />
-   </item>
-   <item>
-    <layout class="QVBoxLayout" >
-     <property name="margin" >
-      <number>1</number>
-     </property>
-     <property name="spacing" >
-      <number>6</number>
-     </property>
-     <item>
-      <spacer>
-       <property name="orientation" >
-        <enum>Qt::Vertical</enum>
-       </property>
-       <property name="sizeHint" >
-        <size>
-         <width>20</width>
-         <height>40</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-     <item>
-      <layout class="QHBoxLayout" >
-       <property name="margin" >
-        <number>1</number>
-       </property>
-       <property name="spacing" >
-        <number>6</number>
-       </property>
-       <item>
-        <widget class="QLabel" name="label" >
-         <property name="text" >
-          <string>Current time:</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QTimeEdit" name="timeEdit" >
-         <property name="readOnly" >
-          <bool>true</bool>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </item>
-     <item>
-      <layout class="QHBoxLayout" >
-       <property name="margin" >
-        <number>1</number>
-       </property>
-       <property name="spacing" >
-        <number>6</number>
-       </property>
-       <item>
-        <widget class="QLabel" name="label_2" >
-         <property name="text" >
-          <string>Set time zone:</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QSpinBox" name="spinBox" >
-         <property name="maximum" >
-          <number>12</number>
-         </property>
-         <property name="minimum" >
-          <number>-12</number>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </item>
-     <item>
-      <spacer>
-       <property name="orientation" >
-        <enum>Qt::Vertical</enum>
-       </property>
-       <property name="sizeHint" >
-        <size>
-         <width>20</width>
-         <height>40</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-    </layout>
-   </item>
-  </layout>
- </widget>
- <pixmapfunction></pixmapfunction>
- <customwidgets>
-  <customwidget>
-   <class>WorldTimeClock</class>
-   <extends></extends>
-   <header>worldtimeclock.h</header>
-   <container>0</container>
-   <pixmap></pixmap>
-  </customwidget>
- </customwidgets>
- <resources/>
- <connections>
-  <connection>
-   <sender>spinBox</sender>
-   <signal>valueChanged(int)</signal>
-   <receiver>worldTimeClock</receiver>
-   <slot>setTimeZone(int)</slot>
-   <hints>
-    <hint type="sourcelabel" >
-     <x>339</x>
-     <y>166</y>
-    </hint>
-    <hint type="destinationlabel" >
-     <x>157</x>
-     <y>230</y>
-    </hint>
-   </hints>
-  </connection>
-  <connection>
-   <sender>worldTimeClock</sender>
-   <signal>updated(QTime)</signal>
-   <receiver>timeEdit</receiver>
-   <slot>setTime(QTime)</slot>
-   <hints>
-    <hint type="sourcelabel" >
-     <x>141</x>
-     <y>59</y>
-    </hint>
-    <hint type="destinationlabel" >
-     <x>291</x>
-     <y>133</y>
-    </hint>
-   </hints>
-  </connection>
- </connections>
-</ui>
diff --git a/examples/designer/worldtimeclockbuilder/main.cpp b/examples/designer/worldtimeclockbuilder/main.cpp
deleted file mode 100644
index 18e879052..000000000
--- a/examples/designer/worldtimeclockbuilder/main.cpp
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-//! [0]
-#include <QtUiTools>
-//! [0]
-#include <QApplication>
-#include <QWidget>
-#include <QFile>
-
-using namespace Qt::StringLiterals;
-
-//! [1]
-int main(int argc, char *argv[])
-{
-    Q_INIT_RESOURCE(worldtimeclockbuilder);
-
-    QApplication app(argc, argv);
-
-    QUiLoader loader;
-//! [1]
-
-//! [2]
-    QFile file(u":/forms/form.ui"_s);
-    file.open(QFile::ReadOnly);
-
-    QWidget *widget = loader.load(&file);
-
-    file.close();
-    widget->show();
-//! [2]
-
-//! [3]
-    return app.exec();
-}
-//! [3]
diff --git a/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.pro b/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.pro
deleted file mode 100644
index 1e420aa65..000000000
--- a/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.pro
+++ /dev/null
@@ -1,8 +0,0 @@
-#! [0]
-QT          += widgets uitools
-SOURCES     = main.cpp
-RESOURCES   = worldtimeclockbuilder.qrc
-#! [0]
-
-target.path = $$[QT_INSTALL_EXAMPLES]/designer/worldtimeclockbuilder
-INSTALLS += target
diff --git a/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.qrc b/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.qrc
deleted file mode 100644
index 89d5ac3c2..000000000
--- a/examples/designer/worldtimeclockbuilder/worldtimeclockbuilder.qrc
+++ /dev/null
@@ -1,5 +0,0 @@
-<!DOCTYPE RCC><RCC version="1.0">
-<qresource prefix="/forms">
-   <file>form.ui</file>
-</qresource>
-</RCC>
diff --git a/examples/designer/worldtimeclockplugin/CMakeLists.txt b/examples/designer/worldtimeclockplugin/CMakeLists.txt
deleted file mode 100644
index d532af311..000000000
--- a/examples/designer/worldtimeclockplugin/CMakeLists.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-cmake_minimum_required(VERSION 3.16)
-project(worldtimeclockplugin LANGUAGES CXX)
-
-set(CMAKE_AUTOMOC ON)
-
-#! [0]
-find_package(Qt6 REQUIRED COMPONENTS Core Gui UiPlugin Widgets)
-
-qt_add_plugin(worldtimeclockplugin)
-#! [0]
-
-#! [1]
-target_sources(worldtimeclockplugin PRIVATE
-    worldtimeclock.cpp worldtimeclock.h
-    worldtimeclockplugin.cpp worldtimeclockplugin.h
-)
-#! [1]
-
-set_target_properties(worldtimeclockplugin PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-
-#! [2]
-target_link_libraries(worldtimeclockplugin PUBLIC
-    Qt::Core
-    Qt::Gui
-    Qt::UiPlugin
-    Qt::Widgets
-)
-#! [2]
-
-if(QT6_INSTALL_PREFIX)
-#! [3]
-   set(INSTALL_EXAMPLEDIR "${QT6_INSTALL_PREFIX}/${QT6_INSTALL_PLUGINS}/designer")
-#! [3]
-else()
-   if(NOT DEFINED INSTALL_EXAMPLESDIR)
-       set(INSTALL_EXAMPLESDIR "examples")
-   endif()
-   set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/plugins/designer")
-endif()
-
-#! [4]
-install(TARGETS worldtimeclockplugin
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
-#! [4]
diff --git a/examples/designer/worldtimeclockplugin/worldtimeclock.cpp b/examples/designer/worldtimeclockplugin/worldtimeclock.cpp
deleted file mode 100644
index c3190d275..000000000
--- a/examples/designer/worldtimeclockplugin/worldtimeclock.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "worldtimeclock.h"
-
-#include <QMouseEvent>
-#include <QPainter>
-
-#include <QTimer>
-
-WorldTimeClock::WorldTimeClock(QWidget *parent)
-    : QWidget(parent)
-{
-    QTimer *timer = new QTimer(this);
-    connect(timer, &QTimer::timeout, this, qOverload<>(&QWidget::update));
-    timer->start(1000);
-
-    setWindowTitle(tr("World Time Clock"));
-    resize(200, 200);
-}
-
-void WorldTimeClock::paintEvent(QPaintEvent *)
-{
-    static const QPoint hourHand[3] = {{7, 8}, {-7, 8}, {0, -40}};
-    static const QPoint minuteHand[3] = {{7, 8}, {-7, 8}, {0, -70}};
-
-    QColor hourColor(127, 0, 127);
-    QColor minuteColor(0, 127, 127, 191);
-
-    int side = qMin(width(), height());
-    QTime time = QTime::currentTime();
-    time = time.addSecs(timeZoneOffset);
-
-    QPainter painter(this);
-    painter.setRenderHint(QPainter::Antialiasing);
-    painter.translate(width() / 2, height() / 2);
-    painter.scale(side / 200.0, side / 200.0);
-
-    painter.setPen(Qt::NoPen);
-    painter.setBrush(hourColor);
-
-    painter.save();
-    painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
-    painter.drawConvexPolygon(hourHand, 3);
-    painter.restore();
-
-    painter.setPen(hourColor);
-
-    for (int i = 0; i < 12; ++i) {
-        painter.drawLine(88, 0, 96, 0);
-        painter.rotate(30.0);
-    }
-
-    painter.setPen(Qt::NoPen);
-    painter.setBrush(minuteColor);
-
-    painter.save();
-    painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
-    painter.drawConvexPolygon(minuteHand, 3);
-    painter.restore();
-
-    painter.setPen(minuteColor);
-
-    for (int j = 0; j < 60; ++j) {
-        if ((j % 5) != 0)
-            painter.drawLine(92, 0, 96, 0);
-        painter.rotate(6.0);
-    }
-
-    emit updated(time);
-}
-
-void WorldTimeClock::setTimeZone(int hourOffset)
-{
-    timeZoneOffset = qMin(qMax(-12, hourOffset), 12) * 3600;
-    update();
-}
diff --git a/examples/designer/worldtimeclockplugin/worldtimeclock.h b/examples/designer/worldtimeclockplugin/worldtimeclock.h
deleted file mode 100644
index 10682e8bf..000000000
--- a/examples/designer/worldtimeclockplugin/worldtimeclock.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef WORLDTIMECLOCK_H
-#define WORLDTIMECLOCK_H
-
-#include <QTime>
-#include <QWidget>
-#include <QtUiPlugin/QDesignerExportWidget>
-
-//! [0] //! [1]
-class QDESIGNER_WIDGET_EXPORT WorldTimeClock : public QWidget
-{
-    Q_OBJECT
-//! [0]
-
-public:
-    explicit WorldTimeClock(QWidget *parent = nullptr);
-
-public slots:
-    void setTimeZone(int hourOffset);
-
-signals:
-    void updated(QTime currentTime);
-
-protected:
-    void paintEvent(QPaintEvent *event) override;
-
-private:
-    int timeZoneOffset = 0;
-//! [2]
-};
-//! [1] //! [2]
-
-#endif
diff --git a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.cpp b/examples/designer/worldtimeclockplugin/worldtimeclockplugin.cpp
deleted file mode 100644
index 4a52c3961..000000000
--- a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.cpp
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "worldtimeclock.h"
-#include "worldtimeclockplugin.h"
-
-#include <QtPlugin>
-
-using namespace Qt::StringLiterals;
-
-WorldTimeClockPlugin::WorldTimeClockPlugin(QObject *parent)
-    : QObject(parent)
-{
-}
-
-void WorldTimeClockPlugin::initialize(QDesignerFormEditorInterface * /* core */)
-{
-    if (initialized)
-        return;
-
-    initialized = true;
-}
-
-bool WorldTimeClockPlugin::isInitialized() const
-{
-    return initialized;
-}
-
-QWidget *WorldTimeClockPlugin::createWidget(QWidget *parent)
-{
-    return new WorldTimeClock(parent);
-}
-
-QString WorldTimeClockPlugin::name() const
-{
-    return u"WorldTimeClock"_s;
-}
-
-QString WorldTimeClockPlugin::group() const
-{
-    return u"Display Widgets [Examples]"_s;
-}
-
-QIcon WorldTimeClockPlugin::icon() const
-{
-    return {};
-}
-
-QString WorldTimeClockPlugin::toolTip() const
-{
-    return {};
-}
-
-QString WorldTimeClockPlugin::whatsThis() const
-{
-    return {};
-}
-
-bool WorldTimeClockPlugin::isContainer() const
-{
-    return false;
-}
-
-QString WorldTimeClockPlugin::domXml() const
-{
-    return uR"(
-<ui language="c++">
-  <widget class="WorldTimeClock" name="worldTimeClock">
-    <property name="geometry">
-      <rect>
-        <x>0</x>
-        <y>0</y>
-        <width>100</width>
-        <height>100</height>
-      </rect>
-    </property>
-  </widget>
-</ui>
-)"_s;
-}
-
-QString WorldTimeClockPlugin::includeFile() const
-{
-    return u"worldtimeclock.h"_s;
-}
diff --git a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.h b/examples/designer/worldtimeclockplugin/worldtimeclockplugin.h
deleted file mode 100644
index 3f7b4b80f..000000000
--- a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.h
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#ifndef WORLDTIMECLOCKPLUGIN_H
-#define WORLDTIMECLOCKPLUGIN_H
-
-#include <QtUiPlugin/QDesignerCustomWidgetInterface>
-
-//! [0]
-class WorldTimeClockPlugin : public QObject,
-                             public QDesignerCustomWidgetInterface
-{
-    Q_OBJECT
-//! [1]
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
-//! [1]
-    Q_INTERFACES(QDesignerCustomWidgetInterface)
-
-public:
-    explicit WorldTimeClockPlugin(QObject *parent = nullptr);
-
-    bool isContainer() const override;
-    bool isInitialized() const override;
-    QIcon icon() const override;
-    QString domXml() const override;
-    QString group() const override;
-    QString includeFile() const override;
-    QString name() const override;
-    QString toolTip() const override;
-    QString whatsThis() const override;
-    QWidget *createWidget(QWidget *parent) override;
-    void initialize(QDesignerFormEditorInterface *core) override;
-
-private:
-    bool initialized = false;
-};
-//! [0]
-
-#endif
diff --git a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.pro b/examples/designer/worldtimeclockplugin/worldtimeclockplugin.pro
deleted file mode 100644
index dc9331be4..000000000
--- a/examples/designer/worldtimeclockplugin/worldtimeclockplugin.pro
+++ /dev/null
@@ -1,31 +0,0 @@
-#! [1]
-QT          += widgets uiplugin
-#! [1]
-
-QTDIR_build {
-# This is only for the Qt build. Do not use externally. We mean it.
-PLUGIN_TYPE = designer
-PLUGIN_CLASS_NAME = WorldTimeClockPlugin
-load(qt_plugin)
-CONFIG += install_ok
-} else {
-# Public example:
-
-TARGET      = $$qtLibraryTarget($$TARGET)
-#! [0]
-TEMPLATE    = lib
-CONFIG     += plugin
-#! [0]
-
-#! [3]
-target.path = $$[QT_INSTALL_PLUGINS]/designer
-INSTALLS += target
-#! [3]
-}
-
-#! [2]
-HEADERS     = worldtimeclock.h \
-              worldtimeclockplugin.h
-SOURCES     = worldtimeclock.cpp \
-              worldtimeclockplugin.cpp
-#! [2]
diff --git a/src/designer/src/designer/doc/src/designer-examples.qdoc b/src/designer/src/designer/doc/src/designer-examples.qdoc
index a9771232a..98a597c5c 100644
--- a/src/designer/src/designer/doc/src/designer-examples.qdoc
+++ b/src/designer/src/designer/doc/src/designer-examples.qdoc
@@ -23,8 +23,6 @@
     \li \l{customwidgetplugin}{Custom Widget Plugin}\raisedaster
     \li \l{taskmenuextension}{Task Menu Extension}\raisedaster
     \li \l{containerextension}{Container Extension}\raisedaster
-    \li \l{worldtimeclockbuilder}{World Time Clock Builder}\raisedaster
-    \li \l{worldtimeclockplugin}{World Time Clock Plugin}\raisedaster
     \endlist
 
     Examples marked with an asterisk (*) are fully documented.
diff --git a/src/designer/src/designer/doc/src/designer-manual.qdoc b/src/designer/src/designer/doc/src/designer-manual.qdoc
index f4e884054..10ffa06d8 100644
--- a/src/designer/src/designer/doc/src/designer-manual.qdoc
+++ b/src/designer/src/designer/doc/src/designer-manual.qdoc
@@ -2393,8 +2393,6 @@ pixmap property in the property editor.
 
     \section2 User Defined Custom Widgets
 
-    \image worldtimeclockplugin-example.png
-
     Custom widgets can be adapted for use with \QD, giving designers the
     opportunity to configure the user interface using the actual widgets that
     will be used in an application rather than placeholder widgets. The process
@@ -2425,8 +2423,6 @@ pixmap property in the property editor.
     design process, custom widgets will appear the same as they do when
     previewed.
 
-    \image worldtimeclockplugin-example.png
-
     The \l QtDesigner module provides you with the ability to create custom
     widgets in \QD.
 
@@ -2782,7 +2778,7 @@ pixmap property in the property editor.
 
     For more information on using custom widgets in \QD, refer to the
     \l{customwidgetplugin}{Custom Widget Plugin} and
-    \l{worldtimeclockplugin}{World Time Clock Plugin} examples for more
+    \l{taskmenuextension}{Task Menu Extension Example} examples for more
     information about using custom widgets in \QD. Also, you can use the
     QDesignerCustomWidgetCollectionInterface class to combine several custom
     widgets into a single library.
diff --git a/src/uiplugin/customwidget.qdoc b/src/uiplugin/customwidget.qdoc
index 557e9a454..5127e52ae 100644
--- a/src/uiplugin/customwidget.qdoc
+++ b/src/uiplugin/customwidget.qdoc
@@ -205,12 +205,12 @@
     Using this macro ensures that the symbols are retained on those platforms,
     and has no side effects on other platforms.
 
-    For example, the \l{worldtimeclockplugin}{World Time Clock Plugin}
+    For example, the \l{customwidgetplugin}{Custom Widget Plugin Example}
     example exports a custom widget class with the following declaration:
 
-    \snippet worldtimeclockplugin/worldtimeclock.h 0
+    \snippet customwidgetplugin/analogclock.h 0
     \dots
-    \snippet worldtimeclockplugin/worldtimeclock.h 2
+    \snippet customwidgetplugin/analogclock.h 1
 
     \sa {Creating Custom Widgets for Qt Designer}
 */