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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \module QtDesigner
+    \title QtDesigner Module
+    \contentspage Qt's Modules
+    \previouspage Qt3Support
+    \nextpage QtUiTools
+    \ingroup modules
+
+    \brief The QtDesigner module provides classes that allow you to
+    create your own custom widget plugins for Qt Designer, and classes
+    that enable you to access Qt Designer's components.
+
+    In addition, the QFormBuilder class provides the possibility of
+    constructing user interfaces from \c .ui files at run-time.
+
+    To include the definitions of the module's classes, use the
+    following directive:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 0
+
+    To link against the module, add this line to your \c qmake .pro
+    file:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 1
+
+    \note These classes are part of the \l{Open Source Versions of Qt} and
+    \l{Qt Commercial Editions}{Qt Full Framework Edition} for commercial
+    users.
+
+    \tableofcontents
+
+    \section1 Creating Custom Widget Plugins
+
+    When implementing a custom widget plugin for \QD, you must
+    subclass QDesignerCustomWidgetInterface to expose your custom
+    widget to \QD. A single custom widget plugin is built as a
+    separate library. If you want to include several custom widget
+    plugins in the same library, you must in addition subclass
+    QDesignerCustomWidgetCollectionInterface.
+
+    To provide your custom widget plugin with the expected behavior
+    and functionality within \QD's workspace you can subclass the
+    associated extension classes:
+
+    The QDesignerContainerExtension class allows you to add pages to a
+    custom multi-page container. The QDesignerTaskMenuExtension class
+    allows you to add custom menu entries to \QD's task menu. The
+    QDesignerMemberSheetExtension class allows you to manipulate a
+    widget's member functions which is displayed when configuring
+    connections using \QD's mode for editing signals and slots. And
+    finally, the QDesignerPropertySheetExtension class allows you to
+    manipulate a widget's properties which is displayed in \QD's
+    property editor.
+
+    \image qtdesignerextensions.png
+
+    In \QD the extensions are not created until they are required. For
+    that reason, when implementing extensions, you must also subclass
+    QExtensionFactory, i.e create a class that is able to make
+    instances of your extensions. In addition, you must make \QD's
+    extension manager register your factory; the extension manager
+    controls the construction of extensions as they are required, and
+    you can access it through QDesignerFormEditorInterface and
+    QExtensionManager.
+
+    For a complete example creating a custom widget plugin with an
+    extension, see the \l {designer/taskmenuextension}{Task Menu
+    Extension} or \l {designer/containerextension}{Container
+    Extension} examples.
+
+    \section1 Retrieving Access to \QD Components
+
+    The purpose of the classes mentioned in this section is to provide
+    access to \QD's components, managers and workspace, and they are
+    not intended to be instantiated directly.
+
+    \QD is composed by several components. It has an action editor, a
+    property editor, widget box and object inspector which you can
+    view in its workspace.
+
+    \image qtdesignerscreenshot.png
+
+    \QD also has an object that works behind the scene; it contains
+    the logic that integrates all of \QD's components into a coherent
+    application. You can access this object, using the
+    QDesignerFormEditorInterface, to retrieve interfaces to \QD's
+    components:
+
+    \list
+    \o QDesignerActionEditorInterface
+    \o QDesignerObjectInspectorInterface
+    \o QDesignerPropertyEditorInterface
+    \o QDesignerWidgetBoxInterface
+    \endlist
+
+    In addition, you can use QDesignerFormEditorInterface to retrieve
+    interfaces to \QD's extension manager (QExtensionManager) and form
+    window manager (QDesignerFormWindowManagerInterface). The
+    extension manager controls the construction of extensions as they
+    are required, while the form window manager controls the form
+    windows appearing in \QD's workspace.
+
+    Once you have an interface to \QD's form window manager
+    (QDesignerFormWindowManagerInterface), you also have access to all
+    the form windows currently appearing in \QD's workspace: The
+    QDesignerFormWindowInterface class allows you to query and
+    manipulate the form windows, and it provides an interface to the
+    form windows' cursors. QDesignerFormWindowCursorInterface is a
+    convenience class allowing you to query and modify a given form
+    window's widget selection, and in addition modify the properties
+    of all the form's widgets.
+
+    \section1 Creating User Interfaces at Run-Time
+
+    The \c QtDesigner module contains the QFormBuilder class that
+    provides a mechanism for dynamically creating user interfaces at
+    run-time, based on \c .ui files created with \QD. This class is
+    typically used by custom components and applications that embed
+    \QD. Standalone applications that need to dynamically generate
+    user interfaces at run-time use the QUiLoader class, found in
+    the QtUiTools module.
+
+    For a complete example using QUiLoader, see
+    the \l {designer/calculatorbuilder}{Calculator Builder example}.
+
+    \sa {Qt Designer Manual}, {QtUiTools Module}
+*/
+
+/*!
+    \class QDesignerMemberSheetExtension
+
+    \brief The QDesignerMemberSheetExtension class allows you to
+    manipulate a widget's member functions which is displayed when
+    configuring connections using Qt Designer's mode for editing
+    signals and slots.
+
+    \inmodule QtDesigner
+
+    QDesignerMemberSheetExtension is a collection of functions that is
+    typically used to query a widget's member functions, and to
+    manipulate the member functions' appearance in \QD's signals and
+    slots editing mode. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 2
+
+    When implementing a custom widget plugin, a pointer to \QD's
+    current QDesignerFormEditorInterface object (\c formEditor in the
+    example above) is provided by the
+    QDesignerCustomWidgetInterface::initialize() function's parameter.
+
+    The member sheet (and any other extension), can be retrieved by
+    querying \QD's extension manager using the qt_extension()
+    function. When you want to release the extension, you only need to
+    delete the pointer.
+
+    All widgets have a default member sheet used in \QD's signals and
+    slots editing mode with the widget's member functions. But
+    QDesignerMemberSheetExtension also provides an interface for
+    creating custom member sheet extensions.
+
+    \warning \QD uses the QDesignerMemberSheetExtension to facilitate
+    the signal and slot editing mode. Whenever a connection between
+    two widgets is requested, \QD will query for the widgets' member
+    sheet extensions. If a widget has an implemented member sheet
+    extension, this extension will override the default member sheet.
+
+    To create a member sheet extension, your extension class must
+    inherit from both QObject and QDesignerMemberSheetExtension. Then,
+    since we are implementing an interface, we must ensure that it's
+    made known to the meta object system using the Q_INTERFACES()
+    macro:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 3
+
+    This enables \QD to use qobject_cast() to query for
+    supported interfaces using nothing but a QObject pointer.
+
+    In \QD the extensions are not created until they are
+    required. For that reason, when implementing a member sheet
+    extension, you must also create a QExtensionFactory, i.e a class
+    that is able to make an instance of your extension, and register
+    it using \QD's \l {QExtensionManager}{extension manager}.
+
+    When a widget's member sheet extension is required, \QD's \l
+    {QExtensionManager}{extension manager} will run through all its
+    registered factories calling QExtensionFactory::createExtension()
+    for each until the first one that is able to create a member sheet
+    extension for that widget, is found. This factory will then make
+    an instance of the extension. If no such factory is found, \QD
+    will use the default member sheet.
+
+    There are four available types of extensions in \QD:
+    QDesignerContainerExtension, QDesignerMemberSheetExtension,
+    QDesignerPropertySheetExtension and
+    QDesignerTaskMenuExtension. \QD's behavior is the same whether the
+    requested extension is associated with a multi page container, a
+    member sheet, a property sheet or a task menu.
+
+    The QExtensionFactory class provides a standard extension
+    factory, and can also be used as an interface for custom
+    extension factories. You can either create a new
+    QExtensionFactory and reimplement the
+    QExtensionFactory::createExtension() function. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 4
+
+    Or you can use an existing factory, expanding the
+    QExtensionFactory::createExtension() function to make the factory
+    able to create a member sheet extension as well. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 5
+
+    For a complete example using an extension class, see \l
+    {designer/taskmenuextension}{Task Menu Extension example}. The
+    example shows how to create a custom widget plugin for Qt
+    Designer, and how to to use the QDesignerTaskMenuExtension class
+    to add custom items to \QD's task menu.
+
+    \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
+    Extensions}
+*/
+
+/*!
+    \fn QDesignerMemberSheetExtension::~QDesignerMemberSheetExtension()
+
+    Destroys the member sheet extension.
+*/
+
+/*!
+    \fn int QDesignerMemberSheetExtension::count() const
+
+    Returns the extension's number of member functions.
+*/
+
+/*!
+    \fn int QDesignerMemberSheetExtension::indexOf(const QString &name) const
+
+    Returns the index of the member function specified by the given \a
+    name.
+
+    \sa memberName()
+*/
+
+/*!
+    \fn QString QDesignerMemberSheetExtension::memberName(int index) const
+
+    Returns the name of the member function with the given \a index.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn QString QDesignerMemberSheetExtension::memberGroup(int index) const
+
+    Returns the name of the member group specified for the function
+    with the given \a index.
+
+    \sa indexOf(), setMemberGroup()
+*/
+
+/*!
+    \fn void QDesignerMemberSheetExtension::setMemberGroup(int index, const QString &group)
+
+    Sets the member group of the member function with the given \a
+    index, to \a group.
+
+    \sa indexOf(), memberGroup()
+*/
+
+/*!
+    \fn bool QDesignerMemberSheetExtension::isVisible(int index) const
+
+    Returns true if the member function with the given \a index is
+    visible in \QD's signal and slot editor, otherwise false.
+
+    \sa indexOf(), setVisible()
+*/
+
+/*!
+    \fn void QDesignerMemberSheetExtension::setVisible(int index, bool visible)
+
+    If \a visible is true, the member function with the given \a index
+    is visible in \QD's signals and slots editing mode; otherwise the
+    member function is hidden.
+
+    \sa indexOf(), isVisible()
+*/
+
+/*!
+    \fn virtual bool QDesignerMemberSheetExtension::isSignal(int index) const
+
+    Returns true if the member function with the given \a index is a
+    signal, otherwise false.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn bool QDesignerMemberSheetExtension::isSlot(int index) const
+
+    Returns true if the member function with the given \a index is a
+    slot, otherwise false.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn bool QDesignerMemberSheetExtension::inheritedFromWidget(int index) const
+
+    Returns true if the member function with the given \a index is
+    inherited from QWidget, otherwise false.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn QString QDesignerMemberSheetExtension::declaredInClass(int index) const
+
+    Returns the name of the class in which the member function with
+    the given \a index is declared.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn QString QDesignerMemberSheetExtension::signature(int index) const
+
+    Returns the signature of the member function with the given \a
+    index.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn QList<QByteArray> QDesignerMemberSheetExtension::parameterTypes(int index) const
+
+    Returns the parameter types of the member function with the given
+    \a index, as a QByteArray list.
+
+    \sa indexOf(), parameterNames()
+*/
+
+/*!
+    \fn QList<QByteArray> QDesignerMemberSheetExtension::parameterNames(int index) const
+
+    Returns the parameter names of the member function with the given
+    \a index, as a QByteArray list.
+
+    \sa indexOf(), parameterTypes()
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerLayoutDecorationExtension
+    \brief The QDesignerLayoutDecorationExtension class provides an extension to a layout in \QD.
+    \inmodule QtDesigner
+    \internal
+*/
+
+/*!
+    \enum QDesignerLayoutDecorationExtension::InsertMode
+
+    This enum describes the modes that are used to insert items into a layout.
+
+    \value InsertWidgetMode Widgets are inserted into empty cells in a layout.
+    \value InsertRowMode    Whole rows are inserted into a vertical or grid layout.
+    \value InsertColumnMode Whole columns are inserted into a horizontal or grid layout.
+*/
+
+/*!
+    \fn virtual QDesignerLayoutDecorationExtension::~QDesignerLayoutDecorationExtension()
+
+    Destroys the extension.
+*/
+
+/*!
+    \fn virtual QList<QWidget*> QDesignerLayoutDecorationExtension::widgets(QLayout *layout) const
+
+    Returns the widgets that are managed by the given \a layout.
+
+    \sa insertWidget(), removeWidget()
+*/
+
+/*!
+    \fn QRect QDesignerLayoutDecorationExtension::itemInfo(int index) const
+
+    Returns the rectangle covered by the item at the given \a index in the layout.
+*/
+
+/*!
+    \fn int QDesignerLayoutDecorationExtension::indexOf(QWidget *widget) const
+
+    Returns the index of the specified \a widget in the layout.
+*/
+
+/*!
+    \fn int QDesignerLayoutDecorationExtension::indexOf(QLayoutItem *item) const
+
+    Returns the index of the specified layout \a item.
+*/
+
+/*!
+    \fn QDesignerLayoutDecorationExtension::InsertMode QDesignerLayoutDecorationExtension::currentInsertMode() const
+
+    Returns the current insertion mode.
+*/
+
+/*!
+    \fn int QDesignerLayoutDecorationExtension::currentIndex() const
+
+    Returns the current index in the layout.
+*/
+
+/*!
+    \fn QPair<int, int> QDesignerLayoutDecorationExtension::currentCell() const
+
+    Returns a pair containing the row and column of the current cell in the layout.
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::insertWidget(QWidget *widget, const QPair<int, int> &cell)
+
+    Inserts the given \a widget into the specified \a cell in the layout.
+
+    \sa removeWidget()
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::removeWidget(QWidget *widget)
+
+    Removes the specified \a widget from the layout.
+
+    \sa insertWidget()
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::insertRow(int row)
+
+    Inserts a new row into the form at the position specified by \a row.
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::insertColumn(int column)
+
+    Inserts a new column into the form at the position specified by \a column.
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::simplify()
+
+    Simplifies the layout by removing unnecessary empty rows and columns, and by changing the
+    number of rows or columns spanned by widgets.
+*/
+
+/*!
+    \fn int QDesignerLayoutDecorationExtension::findItemAt(const QPoint &position) const
+
+    Returns the index of the item in the layout that covers the given \a position.
+*/
+
+/*!
+    \fn int QDesignerLayoutDecorationExtension::findItemAt(int row, int column) const
+
+    Returns the item in the layout that occupies the specified \a row and \a column in the layout.
+
+    Currently, this only applies to grid layouts.
+*/
+
+/*!
+    \fn void QDesignerLayoutDecorationExtension::adjustIndicator(const QPoint &position, int index)
+
+    Adjusts the indicator for the item specified by \a index so that
+    it lies at the given \a position on the form.
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerContainerExtension
+    \brief The QDesignerContainerExtension class allows you to add pages to
+    a custom multi-page container in Qt Designer's workspace.
+    \inmodule QtDesigner
+
+    QDesignerContainerExtension provide an interface for creating
+    custom container extensions. A container extension consists of a
+    collection of functions that \QD needs to manage a multi-page
+    container plugin, and a list of the container's pages.
+
+    \image containerextension-example.png
+
+    \warning This is \e not an extension for container plugins in
+    general, only custom \e multi-page containers.
+
+    To create a container extension, your extension class must inherit
+    from both QObject and QDesignerContainerExtension. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 6
+
+    Since we are implementing an interface, we must ensure that it's
+    made known to the meta object system using the Q_INTERFACES()
+    macro. This enables \QD to use the qobject_cast() function to
+    query for supported interfaces using nothing but a QObject
+    pointer.
+
+    You must reimplement several functions to enable \QD to manage a
+    custom multi-page container widget: \QD uses count() to keep track
+    of the number pages in your container, widget() to return the page
+    at a given index in the list of the container's pages, and
+    currentIndex() to return the list index of the selected page. \QD
+    uses the addWidget() function to add a given page to the
+    container, expecting it to be appended to the list of pages, while
+    it expects the insertWidget() function to add a given page to the
+    container by inserting it at a given index.
+
+    In \QD the extensions are not created until they are
+    required. For that reason you must also create a
+    QExtensionFactory, i.e a class that is able to make an instance of
+    your extension, and register it using \QD's \l
+    {QExtensionManager}{extension manager}.
+
+    When a container extension is required, \QD's \l
+    {QExtensionManager}{extension manager} will run through all its
+    registered factories calling QExtensionFactory::createExtension()
+    for each until the first one that is able to create a container
+    extension, is found. This factory will then create the extension
+    for the plugin.
+
+    There are four available types of extensions in \QD:
+    QDesignerContainerExtension , QDesignerMemberSheetExtension,
+    QDesignerPropertySheetExtension and QDesignerTaskMenuExtension.
+    \QD's behavior is the same whether the requested extension is
+    associated with a multi page container, a member sheet, a property
+    sheet or a task menu.
+
+    The QExtensionFactory class provides a standard extension factory,
+    and can also be used as an interface for custom extension
+    factories. You can either create a new QExtensionFactory and
+    reimplement the QExtensionFactory::createExtension() function. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 7
+
+    Or you can use an existing factory, expanding the
+    QExtensionFactory::createExtension() function to make the factory
+    able to create a container extension as well. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 8
+
+    For a complete example using the QDesignerContainerExtension
+    class, see the \l {designer/containerextension}{Container
+    Extension example}. The example shows how to create a custom
+    multi-page plugin for \QD.
+
+    \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
+    Extensions}
+*/
+
+/*!
+    \fn QDesignerContainerExtension::~QDesignerContainerExtension()
+
+    Destroys the extension.
+*/
+
+/*!
+    \fn int QDesignerContainerExtension::count() const
+
+    Returns the number of pages in the container.
+*/
+
+/*!
+    \fn QWidget *QDesignerContainerExtension::widget(int index) const
+
+    Returns the page at the given \a index in the extension's list of
+    pages.
+
+    \sa addWidget(), insertWidget()
+*/
+
+/*!
+    \fn int QDesignerContainerExtension::currentIndex() const
+
+    Returns the index of the currently selected page in the
+    container.
+
+    \sa setCurrentIndex()
+*/
+
+/*!
+    \fn void QDesignerContainerExtension::setCurrentIndex(int index)
+
+    Sets the the currently selected page in the container to be the
+    page at the given \a index in the extension's list of pages.
+
+    \sa currentIndex()
+*/
+
+/*!
+    \fn void QDesignerContainerExtension::addWidget(QWidget *page)
+
+    Adds the given \a page to the container by appending it to the
+    extension's list of pages.
+
+    \sa insertWidget(), remove(), widget()
+*/
+
+/*!
+    \fn void QDesignerContainerExtension::insertWidget(int index, QWidget *page)
+
+    Adds the given \a page to the container by inserting it at the
+    given \a index in the extension's list of pages.
+
+    \sa addWidget(), remove(), widget()
+*/
+
+/*!
+    \fn void QDesignerContainerExtension::remove(int index)
+
+    Removes the page at the given \a index from the extension's list
+    of pages.
+
+    \sa addWidget(), insertWidget()
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerTaskMenuExtension
+    \brief The QDesignerTaskMenuExtension class allows you to add custom
+    menu entries to Qt Designer's task menu.
+    \inmodule QtDesigner
+
+    QDesignerTaskMenuExtension provides an interface for creating
+    custom task menu extensions. It is typically used to create task
+    menu entries that are specific to a plugin in \QD.
+
+    \QD uses the QDesignerTaskMenuExtension to feed its task
+    menu. Whenever a task menu is requested, \QD will query
+    for the selected widget's task menu extension.
+
+    \image taskmenuextension-example-faded.png
+
+    A task menu extension is a collection of QActions. The actions
+    appear as entries in the task menu when the plugin with the
+    specified extension is selected. The image above shows the custom
+    \gui {Edit State...} action which appears in addition to \QD's
+    default task menu entries: \gui Cut, \gui Copy, \gui Paste etc.
+
+    To create a custom task menu extension, your extension class must
+    inherit from both QObject and QDesignerTaskMenuExtension. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 9
+
+    Since we are implementing an interface, we must ensure that it
+    is made known to the meta-object system using the Q_INTERFACES()
+    macro. This enables \QD to use the qobject_cast() function to
+    query for supported interfaces using nothing but a QObject
+    pointer.
+
+    You must reimplement the taskActions() function to return a list
+    of actions that will be included in \QD task menu. Optionally, you
+    can reimplement the preferredEditAction() function to set the
+    action that is invoked when selecting your plugin and pressing
+    \key F2. The preferred edit action must be one of the actions
+    returned by taskActions() and, if it's not defined, pressing the
+    \key F2 key will simply be ignored.
+
+    In \QD, extensions are not created until they are required. A
+    task menu extension, for example, is created when you click the
+    right mouse button over a widget in \QD's workspace. For that
+    reason you must also construct an extension factory, using either
+    QExtensionFactory or a subclass, and register it using \QD's
+    \l {QExtensionManager}{extension manager}.
+
+    When a task menu extension is required, \QD's \l
+    {QExtensionManager}{extension manager} will run through all its
+    registered factories calling QExtensionFactory::createExtension()
+    for each until it finds one that is able to create a task menu
+    extension for the selected widget. This factory will then make an
+    instance of the extension.
+
+    There are four available types of extensions in \QD:
+    QDesignerContainerExtension, QDesignerMemberSheetExtension,
+    QDesignerPropertySheetExtension, and QDesignerTaskMenuExtension.
+    \QD's behavior is the same whether the requested extension is
+    associated with a container, a member sheet, a property sheet or a
+    task menu.
+
+    The QExtensionFactory class provides a standard extension factory,
+    and can also be used as an interface for custom extension
+    factories. You can either create a new QExtensionFactory and
+    reimplement the QExtensionFactory::createExtension() function. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 10
+
+    Or you can use an existing factory, expanding the
+    QExtensionFactory::createExtension() function to make the factory
+    able to create a task menu extension as well. For example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 11
+
+    For a complete example using the QDesignerTaskMenuExtension class,
+    see the \l {designer/taskmenuextension}{Task Menu Extension
+    example}. The example shows how to create a custom widget plugin
+    for \QD, and how to to use the QDesignerTaskMenuExtension
+    class to add custom items to \QD's task menu.
+
+    \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
+    Extensions}
+*/
+
+/*!
+    \fn QDesignerTaskMenuExtension::~QDesignerTaskMenuExtension()
+
+    Destroys the task menu extension.
+*/
+
+/*!
+    \fn QAction *QDesignerTaskMenuExtension::preferredEditAction() const
+
+    Returns the action that is invoked when selecting a plugin with
+    the specified extension and pressing \key F2.
+
+    The action must be one of the actions returned by taskActions().
+*/
+
+/*!
+    \fn QList<QAction*> QDesignerTaskMenuExtension::taskActions() const
+
+    Returns the task menu extension as a list of actions which will be
+    included in \QD's task menu when a plugin with the specified
+    extension is selected.
+
+    The function must be reimplemented to add actions to the list.
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerCustomWidgetCollectionInterface
+
+    \brief The QDesignerCustomWidgetCollectionInterface class allows
+    you to include several custom widgets in one single library.
+
+    \inmodule QtDesigner
+
+    When implementing a custom widget plugin, you build it as a
+    separate library. If you want to include several custom widget
+    plugins in the same library, you must in addition subclass
+    QDesignerCustomWidgetCollectionInterface.
+
+    QDesignerCustomWidgetCollectionInterface contains one single
+    function returning a list of the collection's
+    QDesignerCustomWidgetInterface objects. For example, if you have
+    several custom widgets \c CustomWidgetOne, \c CustomWidgetTwo and
+    \c CustomWidgetThree, the class definition may look like this:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 12
+
+    In the class constructor you add the interfaces to your custom
+    widgets to the list which you return in the customWidgets()
+    function:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 13
+
+    Note that instead of exporting each custom widget plugin using the
+    Q_EXPORT_PLUGIN2() macro, you export the entire collection. The
+    Q_EXPORT_PLUGIN2() macro ensures that \QD can access and construct
+    the custom widgets. Without this macro, there is no way for \QD to
+    use them.
+
+    \sa QDesignerCustomWidgetInterface, {Creating Custom Widgets for
+    Qt Designer}
+*/
+
+/*!
+    \fn QDesignerCustomWidgetCollectionInterface::~QDesignerCustomWidgetCollectionInterface() {
+
+    Destroys the custom widget collection interface.
+*/
+
+/*!
+    \fn QList<QDesignerCustomWidgetInterface*> QDesignerCustomWidgetCollectionInterface::customWidgets() const
+
+    Returns a list of interfaces to the collection's custom widgets.
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerCustomWidgetInterface
+
+    \brief The QDesignerCustomWidgetInterface class enables Qt Designer
+    to access and construct custom widgets.
+
+    \inmodule QtDesigner
+
+    QDesignerCustomWidgetInterface provides a custom widget with an
+    interface. The class contains a set of functions that must be subclassed
+    to return basic information about the widget, such as its class name and
+    the name of its header file. Other functions must be implemented to
+    initialize the plugin when it is loaded, and to construct instances of
+    the custom widget for \QD to use.
+
+    When implementing a custom widget you must subclass
+    QDesignerCustomWidgetInterface to expose your widget to \QD. For
+    example, this is the declaration for the plugin used in the
+    \l{Custom Widget Plugin Example}{Custom Widget Plugin example} that
+    enables an analog clock custom widget to be used by \QD:
+
+    \snippet examples/designer/customwidgetplugin/customwidgetplugin.h 0
+
+    Note that the only part of the class definition that is specific
+    to this particular custom widget is the class name. In addition,
+    since we are implementing an interface, we must ensure that it's
+    made known to the meta object system using the Q_INTERFACES()
+    macro. This enables \QD to use the qobject_cast() function to
+    query for supported interfaces using nothing but a QObject
+    pointer.
+
+    After \QD loads a custom widget plugin, it calls the interface's
+    initialize() function to enable it to set up any resources that it
+    may need. This function is called with a QDesignerFormEditorInterface
+    parameter that provides the plugin with a gateway to all of \QD's API.
+
+    \QD constructs instances of the custom widget by calling the plugin's
+    createWidget() function with a suitable parent widget. Plugins must
+    construct and return an instance of a custom widget with the specified
+    parent widget. 
+
+    In the implementation of the class you must remember to export
+    your custom widget plugin to \QD using the Q_EXPORT_PLUGIN2()
+    macro. For example, if a library called \c libcustomwidgetplugin.so
+    (on Unix) or \c libcustomwidget.dll (on Windows) contains a widget
+    class called \c MyCustomWidget, we can export it by adding the
+    following line to the file containing the plugin implementation:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 14
+
+    This macro ensures that \QD can access and construct the custom widget.
+    Without this macro, there is no way for \QD to use it.
+
+    When implementing a custom widget plugin, you build it as a
+    separate library. If you want to include several custom widget
+    plugins in the same library, you must in addition subclass
+    QDesignerCustomWidgetCollectionInterface.
+
+    \warning If your custom widget plugin contains QVariant
+    properties, be aware that only the following \l
+    {QVariant::Type}{types} are supported:
+
+    \list
+    \o QVariant::ByteArray
+    \o QVariant::Bool
+    \o QVariant::Color
+    \o QVariant::Cursor
+    \o QVariant::Date
+    \o QVariant::DateTime
+    \o QVariant::Double
+    \o QVariant::Int
+    \o QVariant::Point
+    \o QVariant::Rect
+    \o QVariant::Size
+    \o QVariant::SizePolicy
+    \o QVariant::String
+    \o QVariant::Time
+    \o QVariant::UInt
+    \endlist
+
+    For a complete example using the QDesignerCustomWidgetInterface
+    class, see the \l {designer/customwidgetplugin}{Custom Widget
+    Example}. The example shows how to create a custom widget plugin
+    for \QD.
+
+    \sa QDesignerCustomWidgetCollectionInterface {Creating Custom
+    Widgets for Qt Designer}
+*/
+
+/*!
+    \fn QDesignerCustomWidgetInterface::~QDesignerCustomWidgetInterface()
+
+    Destroys the custom widget interface.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::name() const
+
+    Returns the class name of the custom widget supplied by the interface.
+
+    The name returned \e must be identical to the class name used for the
+    custom widget.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::group() const
+
+    Returns the name of the group to which the custom widget belongs.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::toolTip() const
+
+    Returns a short description of the widget that can be used by \QD
+    in a tool tip.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::whatsThis() const
+
+    Returns a description of the widget that can be used by \QD in
+    "What's This?" help for the widget.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::includeFile() const
+
+    Returns the path to the include file that \l uic uses when
+    creating code for the custom widget.
+*/
+
+/*!
+    \fn QIcon QDesignerCustomWidgetInterface::icon() const
+
+    Returns the icon used to represent the custom widget in \QD's
+    widget box.
+*/
+
+/*!
+    \fn bool QDesignerCustomWidgetInterface::isContainer() const
+
+    Returns true if the custom widget is intended to be used as a
+    container; otherwise returns false.
+
+    Most custom widgets are not used to hold other widgets, so their
+    implementations of this function will return false, but custom
+    containers will return true to ensure that they behave correctly
+    in \QD.
+*/
+
+/*!
+    \fn QWidget *QDesignerCustomWidgetInterface::createWidget(QWidget *parent)
+
+    Returns a new instance of the custom widget, with the given \a
+    parent.
+*/
+
+/*!
+    \fn bool QDesignerCustomWidgetInterface::isInitialized() const
+
+    Returns true if the widget has been initialized; otherwise returns
+    false.
+
+    \sa initialize()
+*/
+
+/*!
+    \fn void QDesignerCustomWidgetInterface::initialize(QDesignerFormEditorInterface *formEditor)
+
+    Initializes the widget for use with the specified \a formEditor
+    interface.
+
+    \sa isInitialized()
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::domXml() const
+
+    Returns the XML that is used to describe the custom widget's
+    properties to \QD.
+*/
+
+/*!
+    \fn QString QDesignerCustomWidgetInterface::codeTemplate() const
+
+    This function is reserved for future use by \QD.
+
+    \omit
+    Returns the code template that \QD includes in forms that contain
+    the custom widget when they are saved.
+    \endomit
+*/
+
+/*!
+    \macro QDESIGNER_WIDGET_EXPORT
+    \relates QDesignerCustomWidgetInterface
+    \since 4.1
+
+    This macro is used when defining custom widgets to ensure that they are
+    correctly exported from plugins for use with \QD.
+
+    On some platforms, the symbols required by \QD to create new widgets
+    are removed from plugins by the build system, making them unusable.
+    Using this macro ensures that the symbols are retained on those platforms,
+    and has no side effects on other platforms.
+
+    For example, the \l{designer/worldtimeclockplugin}{World Time Clock Plugin}
+    example exports a custom widget class with the following declaration:
+
+    \snippet examples/designer/worldtimeclockplugin/worldtimeclock.h 0
+    \dots
+    \snippet examples/designer/worldtimeclockplugin/worldtimeclock.h 2
+
+    \sa {Creating Custom Widgets for Qt Designer}
+*/
+
+
+// Doc: Abstract class
+
+/*!
+    \class QDesignerDnDItemInterface
+    \brief The QDesignerDnDItemInterface class provides an interface that is used to manage items
+    during a drag and drop operation.
+    \inmodule QtDesigner
+    \internal
+*/
+
+/*!
+    \enum QDesignerDnDItemInterface::DropType
+
+    This enum describes the result of a drag and drop operation.
+
+    \value MoveDrop The item was moved.
+    \value CopyDrop The item was copied.
+*/
+
+/*!
+    \fn QDesignerDnDItemInterface::QDesignerDnDItemInterface()
+
+    Constructs a new interface to a drag and drop item.
+*/
+
+/*!
+    \fn QDesignerDnDItemInterface::~QDesignerDnDItemInterface()
+
+    Destroys the interface to the item.
+*/
+
+/*!
+    \fn DomUI *QDesignerDnDItemInterface::domUi() const
+
+    Returns a user interface object for the item.
+*/
+
+/*!
+    \fn QWidget *QDesignerDnDItemInterface::widget() const
+
+    Returns the widget being copied or moved in the drag and drop operation.
+
+    \sa source()
+*/
+
+/*!
+    \fn QWidget *QDesignerDnDItemInterface::decoration() const
+
+    Returns the widget used to represent the item.
+*/
+
+/*!
+    \fn QPoint QDesignerDnDItemInterface::hotSpot() const
+
+    Returns the cursor's hotspot.
+
+    \sa QDrag::hotSpot()
+*/
+
+/*!
+    \fn DropType QDesignerDnDItemInterface::type() const
+
+    Returns the type of drag and drop operation in progress.
+*/
+
+/*!
+    \fn QWidget *QDesignerDnDItemInterface::source() const
+
+    Returns the widget that is the source of the drag and drop operation; i.e. the original
+    container of the widget being dragged.
+
+    \sa widget()
+*/
+
+
+// Doc: Abstract class
+
+/*!
+    \class QDesignerIconCacheInterface
+    \brief The QDesignerIconCacheInterface class provides an interface to \QD's icon cache.
+    \inmodule QtDesigner
+    \internal
+*/
+
+/*!
+    \fn QDesignerIconCacheInterface::QDesignerIconCacheInterface(QObject *parent)
+
+    Constructs a new interface with the given \a parent.
+*/
+
+/*!
+    \fn QIcon QDesignerIconCacheInterface::nameToIcon(const QString &filePath, const QString &qrcPath)
+
+    Returns the icon associated with the name specified by \a filePath in the resource
+    file specified by \a qrcPath.
+
+    If \a qrcPath refers to a valid resource file, the name used for the file path is a path
+    within those resources; otherwise the file path refers to a local file.
+
+    \sa {The Qt Resource System}, nameToPixmap()
+*/
+
+/*!
+    \fn QPixmap QDesignerIconCacheInterface::nameToPixmap(const QString &filePath, const QString &qrcPath)
+
+    Returns the pixmap associated with the name specified by \a filePath in the resource
+    file specified by \a qrcPath.
+
+    If \a qrcPath refers to a valid resource file, the name used for the file path is a path
+    within those resources; otherwise the file path refers to a local file.
+
+    \sa {The Qt Resource System}, nameToIcon()
+*/
+
+/*!
+    \fn QString QDesignerIconCacheInterface::iconToFilePath(const QIcon &icon) const
+
+    Returns the file path associated with the given \a icon. The file path is a path within
+    an application resources.
+*/
+
+/*!
+    \fn QString QDesignerIconCacheInterface::iconToQrcPath(const QIcon &icon) const
+
+    Returns the path to the resource file that refers to the specified \a icon. The resource
+    path refers to a local file.
+*/
+
+/*!
+    \fn QString QDesignerIconCacheInterface::pixmapToFilePath(const QPixmap &pixmap) const
+
+    Returns the file path associated with the given \a pixmap. The file path is a path within
+    an application resources.
+*/
+
+/*!
+    \fn QString QDesignerIconCacheInterface::pixmapToQrcPath(const QPixmap &pixmap) const
+
+    Returns the path to the resource file that refers to the specified \a pixmap. The resource
+    path refers to a local file.
+*/
+
+/*!
+    \fn QList<QPixmap> QDesignerIconCacheInterface::pixmapList() const
+
+    Returns a list of pixmaps for the icons provided by the icon cache.
+*/
+
+/*!
+    \fn QList<QIcon> QDesignerIconCacheInterface::iconList() const
+
+    Returns a list of icons provided by the icon cache.
+*/
+
+/*!
+    \fn QString QDesignerIconCacheInterface::resolveQrcPath(const QString &filePath, const QString &qrcPath, const QString &workingDirectory) const
+
+    Returns a path to a resource specified by the \a filePath within
+    the resource file located at \a qrcPath. If \a workingDirectory is
+    a valid path to a directory, the path returned will be relative to
+    that directory; otherwise an absolute path is returned.
+
+    \omit
+    ### Needs checking
+    \endomit
+*/
+
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerPropertySheetExtension
+
+    \brief The QDesignerPropertySheetExtension class allows you to
+    manipulate a widget's properties which is displayed in Qt
+    Designer's property editor.
+
+    \sa QDesignerDynamicPropertySheetExtension
+
+    \inmodule QtDesigner
+
+    QDesignerPropertySheetExtension provides a collection of functions that
+    are typically used to query a widget's properties, and to
+    manipulate the properties' appearance in the property editor. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 15
+
+    Note that if you change the value of a property using the
+    QDesignerPropertySheetExtension::setProperty() function, the undo
+    stack is not updated. To ensure that a property's value can be
+    reverted using the undo stack, you must use the
+    QDesignerFormWindowCursorInterface::setProperty() function, or its
+    buddy \l
+    {QDesignerFormWindowCursorInterface::setWidgetProperty()}{setWidgetProperty()},
+    instead.
+
+    When implementing a custom widget plugin, a pointer to \QD's
+    current QDesignerFormEditorInterface object (\c formEditor in the
+    example above) is provided by the
+    QDesignerCustomWidgetInterface::initialize() function's parameter.
+
+    The property sheet, or any other extension, can be retrieved by
+    querying \QD's extension manager using the qt_extension()
+    function. When you want to release the extension, you only need to
+    delete the pointer.
+
+    All widgets have a default property sheet which populates \QD's
+    property editor with the widget's properties (i.e the ones defined
+    with the Q_PROPERTY() macro). But QDesignerPropertySheetExtension
+    also provides an interface for creating custom property sheet
+    extensions.
+
+    \warning \QD uses the QDesignerPropertySheetExtension to feed its
+    property editor. Whenever a widget is selected in its workspace,
+    \QD will query for the widget's property sheet extension. If the
+    selected widget has an implemented property sheet extension, this
+    extension will override the default property sheet.
+
+    To create a property sheet extension, your extension class must
+    inherit from both QObject and
+    QDesignerPropertySheetExtension. Then, since we are implementing
+    an interface, we must ensure that it's made known to the meta
+    object system using the Q_INTERFACES() macro:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 16
+
+    This enables \QD to use qobject_cast() to query for supported
+    interfaces using nothing but a QObject pointer.
+
+    In \QD the extensions are not created until they are
+    required. For that reason, when implementing a property sheet
+    extension, you must also create a QExtensionFactory, i.e a class
+    that is able to make an instance of your extension, and register
+    it using \QD's \l {QExtensionManager}{extension manager}.
+
+    When a property sheet extension is required, \QD's \l
+    {QExtensionManager}{extension manager} will run through all its
+    registered factories calling QExtensionFactory::createExtension()
+    for each until the first one that is able to create a property
+    sheet extension for the selected widget, is found. This factory
+    will then make an instance of the extension. If no such factory
+    can be found, \QD will use the default property sheet.
+
+    There are four available types of extensions in \QD:
+    QDesignerContainerExtension, QDesignerMemberSheetExtension,
+    QDesignerPropertySheetExtension and QDesignerTaskMenuExtension. Qt
+    Designer's behavior is the same whether the requested extension is
+    associated with a multi page container, a member sheet, a property
+    sheet or a task menu.
+
+    The QExtensionFactory class provides a standard extension factory,
+    and can also be used as an interface for custom extension
+    factories. You can either create a new QExtensionFactory and
+    reimplement the QExtensionFactory::createExtension() function. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 17
+
+    Or you can use an existing factory, expanding the
+    QExtensionFactory::createExtension() function to make the factory
+    able to create a property sheet extension extension as well. For
+    example:
+
+    \snippet doc/src/snippets/code/doc_src_qtdesigner.qdoc 18
+
+    For a complete example using an extension class, see the \l
+    {designer/taskmenuextension}{Task Menu Extension example}. The
+    example shows how to create a custom widget plugin for Qt
+    Designer, and how to to use the QDesignerTaskMenuExtension class
+    to add custom items to \QD's task menu.
+
+    \sa QExtensionFactory, QExtensionManager, {Creating Custom Widget
+    Extensions}
+*/
+
+/*!
+    \fn QDesignerPropertySheetExtension::~QDesignerPropertySheetExtension()
+
+    Destroys the property sheet extension.
+*/
+
+/*!
+    \fn int QDesignerPropertySheetExtension::count() const
+
+    Returns the selected widget's number of properties.
+*/
+
+/*!
+    \fn int QDesignerPropertySheetExtension::indexOf(const QString &name) const
+
+    Returns the index for a given property \a name.
+
+    \sa propertyName()
+*/
+
+/*!
+    \fn QString QDesignerPropertySheetExtension::propertyName(int index) const
+
+    Returns the name of the property at the given \a index.
+
+    \sa indexOf()
+*/
+
+/*!
+    \fn QString QDesignerPropertySheetExtension::propertyGroup(int index) const
+
+    Returns the property group for the property at the given \a index.
+
+    \QD's property editor supports property groups, i.e. sections of
+    related properties. A property can be related to a group using the
+    setPropertyGroup() function. The default group of any property is
+    the name of the class that defines it. For example, the
+    QObject::objectName property appears within the QObject property
+    group.
+
+    \sa indexOf(), setPropertyGroup()
+*/
+
+/*!
+    \fn void QDesignerPropertySheetExtension::setPropertyGroup(int index, const QString &group)
+
+    Sets the property group for the property at the given \a index to
+    \a group.
+
+    Relating a property to a group makes it appear within that group's
+    section in the property editor. The default property group of any
+    property is the name of the class that defines it. For example,
+    the QObject::objectName property appears within the QObject
+    property group.
+
+    \sa indexOf(), property(), propertyGroup()
+*/
+
+/*!
+    \fn bool QDesignerPropertySheetExtension::hasReset(int index) const
+
+    Returns true if the property at the given \a index has a reset
+    button in \QD's property editor, otherwise false.
+
+    \sa indexOf(), reset()
+*/
+
+/*!
+    \fn bool QDesignerPropertySheetExtension::reset(int index)
+
+    Resets the value of the property at the given \a index, to the
+    default value. Returns true if a default value could be found, otherwise false.
+
+    \sa indexOf(), hasReset(), isChanged()
+*/
+
+/*!
+    \fn bool QDesignerPropertySheetExtension::isVisible(int index) const
+
+    Returns true if the property at the given \a index is visible in
+    \QD's property editor, otherwise false.
+
+    \sa indexOf(), setVisible()
+*/
+
+/*!
+    \fn void QDesignerPropertySheetExtension::setVisible(int index, bool visible)
+
+    If \a visible is true, the property at the given \a index is
+    visible in \QD's property editor; otherwise the property is
+    hidden.
+
+    \sa indexOf(), isVisible()
+*/
+
+/*!
+    \fn bool QDesignerPropertySheetExtension::isAttribute(int index) const
+
+    Returns true if the property at the given \a index is an attribute,
+    which will be \e excluded from the .ui file, otherwise false.
+
+    \sa indexOf(), setAttribute()
+*/
+
+/*!
+    \fn void QDesignerPropertySheetExtension::setAttribute(int index, bool attribute)
+
+    If \a attribute is true, the property at the given \a index is
+    made an attribute which will be \e excluded from the .ui file;
+    otherwise it will be included.
+
+    \sa indexOf(), isAttribute()
+*/
+
+/*!
+    \fn QVariant QDesignerPropertySheetExtension::property(int index) const
+
+    Returns the value of the property at the given \a index.
+
+    \sa indexOf(), setProperty(), propertyGroup()
+*/
+
+/*!
+    \fn void QDesignerPropertySheetExtension::setProperty(int index, const QVariant &value)
+
+    Sets the \a value of the property at the given \a index.
+
+    \warning If you change the value of a property using this
+    function, the undo stack is not updated. To ensure that a
+    property's value can be reverted using the undo stack, you must
+    use the QDesignerFormWindowCursorInterface::setProperty()
+    function, or its buddy \l
+    {QDesignerFormWindowCursorInterface::setWidgetProperty()}{setWidgetProperty()},
+    instead.
+
+    \sa indexOf(), property(), propertyGroup()
+*/
+
+/*!
+    \fn bool QDesignerPropertySheetExtension::isChanged(int index) const
+
+    Returns true if the value of the property at the given \a index
+    differs from the property's default value, otherwise false.
+
+    \sa indexOf(), setChanged(), reset()
+*/
+
+/*!
+    \fn void QDesignerPropertySheetExtension::setChanged(int index, bool changed)
+
+    Sets whether the property at the given \a index is different from
+    its default value, or not, depending on the \a changed parameter.
+
+    \sa indexOf(), isChanged()
+*/
+
+// Doc: Interface only
+
+/*!
+    \class QDesignerDynamicPropertySheetExtension
+
+    \brief The QDesignerDynamicPropertySheetExtension class allows you to
+    manipulate a widget's dynamic properties in Qt Designer's property editor.
+
+    \sa QDesignerPropertySheetExtension, {QObject#Dynamic Properties}{Dynamic Properties}
+
+    \inmodule QtDesigner
+    \since 4.3
+*/
+
+/*!
+    \fn QDesignerDynamicPropertySheetExtension::~QDesignerDynamicPropertySheetExtension()
+
+    Destroys the dynamic property sheet extension.
+*/
+
+/*!
+    \fn bool QDesignerDynamicPropertySheetExtension::dynamicPropertiesAllowed() const
+
+    Returns true if the widget supports dynamic properties; otherwise returns false.
+*/
+
+/*!
+    \fn int QDesignerDynamicPropertySheetExtension::addDynamicProperty(const QString &propertyName, const QVariant &value)
+
+    Adds a dynamic property named \a propertyName and sets its value to \a value.
+    Returns the index of the property if it was added successfully; otherwise returns -1 to
+    indicate failure.
+*/
+
+/*!
+    \fn bool QDesignerDynamicPropertySheetExtension::removeDynamicProperty(int index)
+
+    Removes the dynamic property at the given \a index.
+    Returns true if the operation succeeds; otherwise returns false.
+*/
+
+/*!
+    \fn bool QDesignerDynamicPropertySheetExtension::isDynamicProperty(int index) const
+
+    Returns true if the property at the given \a index is a dynamic property; otherwise
+    returns false.
+*/
+
+/*!
+    \fn bool QDesignerDynamicPropertySheetExtension::canAddDynamicProperty(const QString &propertyName) const
+
+    Returns true if \a propertyName is a valid, unique name for a dynamic
+    property; otherwise returns false.
+
+*/