gtk/auto/

about_dialog.rs

// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::{
    Align, Application, Bin, Buildable, Container, Dialog, License, ResizeMode, Widget, Window,
    WindowPosition, WindowType,
};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};

glib::wrapper! {
    /// The GtkAboutDialog offers a simple way to display information about
    /// a program like its logo, name, copyright, website and license. It is
    /// also possible to give credits to the authors, documenters, translators
    /// and artists who have worked on the program. An about dialog is typically
    /// opened when the user selects the `About` option from the `Help` menu.
    /// All parts of the dialog are optional.
    ///
    /// About dialogs often contain links and email addresses. GtkAboutDialog
    /// displays these as clickable links. By default, it calls [`show_uri_on_window()`][crate::show_uri_on_window()]
    /// when a user clicks one. The behaviour can be overridden with the
    /// [`activate-link`][struct@crate::AboutDialog#activate-link] signal.
    ///
    /// To specify a person with an email address, use a string like
    /// "Edgar Allan Poe <edgar\`poe`>". To specify a website with a title,
    /// use a string like "GTK+ team http://www.gtk.org".
    ///
    /// To make constructing a GtkAboutDialog as convenient as possible, you can
    /// use the function `gtk_show_about_dialog()` which constructs and shows a dialog
    /// and keeps it around so that it can be shown again.
    ///
    /// Note that GTK+ sets a default title of `_("About `s`")` on the dialog
    /// window (where \`s` is replaced by the name of the application, but in
    /// order to ensure proper translation of the title, applications should
    /// set the title property explicitly when constructing a GtkAboutDialog,
    /// as shown in the following example:
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// GdkPixbuf *example_logo = gdk_pixbuf_new_from_file ("./logo.png", NULL);
    /// gtk_show_about_dialog (NULL,
    ///                        "program-name", "ExampleCode",
    ///                        "logo", example_logo,
    ///                        "title", _("About ExampleCode"),
    ///                        NULL);
    /// ```
    ///
    /// It is also possible to show a [`AboutDialog`][crate::AboutDialog] like any other [`Dialog`][crate::Dialog],
    /// e.g. using [`DialogExt::run()`][crate::prelude::DialogExt::run()]. In this case, you might need to know that
    /// the “Close” button returns the [`ResponseType::Cancel`][crate::ResponseType::Cancel] response id.
    ///
    /// ## Properties
    ///
    ///
    /// #### `artists`
    ///  The people who contributed artwork to the program, as a [`None`]-terminated
    /// array of strings. Each string may contain email addresses and URLs, which
    /// will be displayed as links, see the introduction for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `authors`
    ///  The authors of the program, as a [`None`]-terminated array of strings.
    /// Each string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `comments`
    ///  Comments about the program. This string is displayed in a label
    /// in the main dialog, thus it should be a short explanation of
    /// the main purpose of the program, not a detailed list of features.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `copyright`
    ///  Copyright information for the program.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `documenters`
    ///  The people documenting the program, as a [`None`]-terminated array of strings.
    /// Each string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `license`
    ///  The license of the program. This string is displayed in a
    /// text view in a secondary dialog, therefore it is fine to use
    /// a long multi-paragraph text. Note that the text is only wrapped
    /// in the text view if the "wrap-license" property is set to [`true`];
    /// otherwise the text itself must contain the intended linebreaks.
    /// When setting this property to a non-[`None`] value, the
    /// [`license-type`][struct@crate::AboutDialog#license-type] property is set to [`License::Custom`][crate::License::Custom]
    /// as a side effect.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `license-type`
    ///  The license of the program, as a value of the [`License`][crate::License] enumeration.
    ///
    /// The [`AboutDialog`][crate::AboutDialog] will automatically fill out a standard disclaimer
    /// and link the user to the appropriate online resource for the license
    /// text.
    ///
    /// If [`License::Unknown`][crate::License::Unknown] is used, the link used will be the same
    /// specified in the [`website`][struct@crate::AboutDialog#website] property.
    ///
    /// If [`License::Custom`][crate::License::Custom] is used, the current contents of the
    /// [`license`][struct@crate::AboutDialog#license] property are used.
    ///
    /// For any other [`License`][crate::License] value, the contents of the
    /// [`license`][struct@crate::AboutDialog#license] property are also set by this property as
    /// a side effect.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `logo`
    ///  A logo for the about box. If it is [`None`], the default window icon
    /// set with [`Window::set_default_icon()`][crate::Window::set_default_icon()] will be used.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `logo-icon-name`
    ///  A named icon to use as the logo for the about box. This property
    /// overrides the [`logo`][struct@crate::AboutDialog#logo] property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `program-name`
    ///  The name of the program.
    /// If this is not set, it defaults to `g_get_application_name()`.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `translator-credits`
    ///  Credits to the translators. This string should be marked as translatable.
    /// The string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `version`
    ///  The version of the program.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `website`
    ///  The URL for the link to the website of the program.
    /// This should be a string starting with "http://.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `website-label`
    ///  The label for the link to the website of the program.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `wrap-license`
    ///  Whether to wrap the text in the license dialog.
    ///
    /// Readable | Writeable
    /// <details><summary><h4>Dialog</h4></summary>
    ///
    ///
    /// #### `use-header-bar`
    ///  [`true`] if the dialog uses a [`HeaderBar`][crate::HeaderBar] for action buttons
    /// instead of the action-area.
    ///
    /// For technical reasons, this property is declared as an integer
    /// property, but you should only set it to [`true`] or [`false`].
    ///
    /// Readable | Writeable | Construct Only
    /// </details>
    /// <details><summary><h4>Window</h4></summary>
    ///
    ///
    /// #### `accept-focus`
    ///  Whether the window should receive the input focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `application`
    ///  The [`Application`][crate::Application] associated with the window.
    ///
    /// The application will be kept alive for at least as long as it
    /// has any windows associated with it (see [`ApplicationExtManual::hold()`][crate::gio::prelude::ApplicationExtManual::hold()]
    /// for a way to keep it alive without windows).
    ///
    /// Normally, the connection between the application and the window
    /// will remain until the window is destroyed, but you can explicitly
    /// remove it by setting the :application property to [`None`].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `attached-to`
    ///  The widget to which this window is attached.
    /// See [`GtkWindowExt::set_attached_to()`][crate::prelude::GtkWindowExt::set_attached_to()].
    ///
    /// Examples of places where specifying this relation is useful are
    /// for instance a [`Menu`][crate::Menu] created by a [`ComboBox`][crate::ComboBox], a completion
    /// popup window created by [`Entry`][crate::Entry] or a typeahead search entry
    /// created by [`TreeView`][crate::TreeView].
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `decorated`
    ///  Whether the window should be decorated by the window manager.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `default-height`
    ///  Readable | Writeable
    ///
    ///
    /// #### `default-width`
    ///  Readable | Writeable
    ///
    ///
    /// #### `deletable`
    ///  Whether the window frame should have a close button.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `destroy-with-parent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `focus-on-map`
    ///  Whether the window should receive the input focus when mapped.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-visible`
    ///  Whether 'focus rectangles' are currently visible in this window.
    ///
    /// This property is maintained by GTK+ based on user input
    /// and should not be set by applications.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `gravity`
    ///  The window gravity of the window. See [`GtkWindowExt::move_()`][crate::prelude::GtkWindowExt::move_()] and [`gdk::Gravity`][crate::gdk::Gravity] for
    /// more details about window gravity.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-resize-grip`
    ///  Whether the window has a corner resize grip.
    ///
    /// Note that the resize grip is only shown if the window is
    /// actually resizable and not maximized. Use
    /// [`resize-grip-visible`][struct@crate::Window#resize-grip-visible] to find out if the resize
    /// grip is currently shown.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-toplevel-focus`
    ///  Readable
    ///
    ///
    /// #### `hide-titlebar-when-maximized`
    ///  Whether the titlebar should be hidden during maximization.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `icon`
    ///  Readable | Writeable
    ///
    ///
    /// #### `icon-name`
    ///  The :icon-name property specifies the name of the themed icon to
    /// use as the window icon. See [`IconTheme`][crate::IconTheme] for more details.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-active`
    ///  Readable
    ///
    ///
    /// #### `is-maximized`
    ///  Readable
    ///
    ///
    /// #### `mnemonics-visible`
    ///  Whether mnemonics are currently visible in this window.
    ///
    /// This property is maintained by GTK+ based on user input,
    /// and should not be set by applications.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `modal`
    ///  Readable | Writeable
    ///
    ///
    /// #### `resizable`
    ///  Readable | Writeable
    ///
    ///
    /// #### `resize-grip-visible`
    ///  Whether a corner resize grip is currently shown.
    ///
    /// Readable
    ///
    ///
    /// #### `role`
    ///  Readable | Writeable
    ///
    ///
    /// #### `screen`
    ///  Readable | Writeable
    ///
    ///
    /// #### `skip-pager-hint`
    ///  Readable | Writeable
    ///
    ///
    /// #### `skip-taskbar-hint`
    ///  Readable | Writeable
    ///
    ///
    /// #### `startup-id`
    ///  The :startup-id is a write-only property for setting window's
    /// startup notification identifier. See [`GtkWindowExt::set_startup_id()`][crate::prelude::GtkWindowExt::set_startup_id()]
    /// for more details.
    ///
    /// Writeable
    ///
    ///
    /// #### `title`
    ///  Readable | Writeable
    ///
    ///
    /// #### `transient-for`
    ///  The transient parent of the window. See [`GtkWindowExt::set_transient_for()`][crate::prelude::GtkWindowExt::set_transient_for()] for
    /// more details about transient windows.
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `type`
    ///  Readable | Writeable | Construct Only
    ///
    ///
    /// #### `type-hint`
    ///  Readable | Writeable
    ///
    ///
    /// #### `urgency-hint`
    ///  Readable | Writeable
    ///
    ///
    /// #### `window-position`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `border-width`
    ///  Readable | Writeable
    ///
    ///
    /// #### `child`
    ///  Writeable
    ///
    ///
    /// #### `resize-mode`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `app-paintable`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `composite-child`
    ///  Readable
    ///
    ///
    /// #### `double-buffered`
    ///  Whether the widget is double buffered.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `events`
    ///  Readable | Writeable
    ///
    ///
    /// #### `expand`
    ///  Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-on-click`
    ///  Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
    /// whether it will provide a tooltip or not.
    ///
    /// Note that setting this property to [`true`] for the first time will change
    /// the event masks of the GdkWindows of this widget to include leave-notify
    /// and motion-notify events. This cannot and will not be undone when the
    /// property is set to [`false`] again.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `margin`
    ///  Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-bottom`
    ///  Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-end`
    ///  Margin on end of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-left`
    ///  Margin on left side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-right`
    ///  Margin on right side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-start`
    ///  Margin on start of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-top`
    ///  Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  Readable | Writeable
    ///
    ///
    /// #### `no-show-all`
    ///  Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `receives-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget. See [`WidgetExt::scale_factor()`][crate::prelude::WidgetExt::scale_factor()] for
    /// more details about widget scaling.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Readable | Writeable
    ///
    ///
    /// #### `style`
    ///  The style of the widget, which contains information about how it will look (colors, etc).
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-markup`
    ///  Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-text`
    ///  Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `window`
    ///  The widget's window if it is realized, [`None`] otherwise.
    ///
    /// Readable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `activate-link`
    ///  The signal which gets emitted to activate a URI.
    /// Applications may connect to it to override the default behaviour,
    /// which is to call [`show_uri_on_window()`][crate::show_uri_on_window()].
    ///
    ///
    /// <details><summary><h4>Dialog</h4></summary>
    ///
    ///
    /// #### `close`
    ///  The ::close signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user uses a keybinding to close
    /// the dialog.
    ///
    /// The default binding for this signal is the Escape key.
    ///
    /// Action
    ///
    ///
    /// #### `response`
    ///  Emitted when an action widget is clicked, the dialog receives a
    /// delete event, or the application programmer calls [`DialogExt::response()`][crate::prelude::DialogExt::response()].
    /// On a delete event, the response ID is [`ResponseType::DeleteEvent`][crate::ResponseType::DeleteEvent].
    /// Otherwise, it depends on which action widget was clicked.
    ///
    ///
    /// </details>
    /// <details><summary><h4>Window</h4></summary>
    ///
    ///
    /// #### `activate-default`
    ///  The ::activate-default signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user activates the default widget
    /// of `window`.
    ///
    /// Action
    ///
    ///
    /// #### `activate-focus`
    ///  The ::activate-focus signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user activates the currently
    /// focused widget of `window`.
    ///
    /// Action
    ///
    ///
    /// #### `enable-debugging`
    ///  The ::enable-debugging signal is a [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user enables or disables interactive
    /// debugging. When `toggle` is [`true`], interactive debugging is toggled
    /// on or off, when it is [`false`], the debugger will be pointed at the
    /// widget under the pointer.
    ///
    /// The default bindings for this signal are Ctrl-Shift-I
    /// and Ctrl-Shift-D.
    ///
    /// Action
    ///
    ///
    /// #### `keys-changed`
    ///  The ::keys-changed signal gets emitted when the set of accelerators
    /// or mnemonics that are associated with `window` changes.
    ///
    ///
    ///
    ///
    /// #### `set-focus`
    ///  This signal is emitted whenever the currently focused widget in
    /// this window changes.
    ///
    ///
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `add`
    ///
    ///
    ///
    /// #### `check-resize`
    ///
    ///
    ///
    /// #### `remove`
    ///
    ///
    ///
    /// #### `set-focus-child`
    ///
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `accel-closures-changed`
    ///
    ///
    ///
    /// #### `button-press-event`
    ///  The ::button-press-event signal will be emitted when a button
    /// (typically from a mouse) is pressed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_PRESS_MASK`][crate::gdk::EventMask::BUTTON_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `button-release-event`
    ///  The ::button-release-event signal will be emitted when a button
    /// (typically from a mouse) is released.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_RELEASE_MASK`][crate::gdk::EventMask::BUTTON_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `can-activate-accel`
    ///  Determines whether an accelerator that activates the signal
    /// identified by `signal_id` can currently be activated.
    /// This signal is present to allow applications and derived
    /// widgets to override the default [`Widget`][crate::Widget] handling
    /// for determining whether an accelerator can be activated.
    ///
    ///
    ///
    ///
    /// #### `child-notify`
    ///  The ::child-notify signal is emitted for each
    /// [child property][child-properties] that has
    /// changed on an object. The signal's detail holds the property name.
    ///
    /// Detailed
    ///
    ///
    /// #### `composited-changed`
    ///  The ::composited-changed signal is emitted when the composited
    /// status of `widgets` screen changes.
    /// See [`Screen::is_composited()`][crate::gdk::Screen::is_composited()].
    ///
    /// Action
    ///
    ///
    /// #### `configure-event`
    ///  The ::configure-event signal will be emitted when the size, position or
    /// stacking of the `widget`'s window has changed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `damage-event`
    ///  Emitted when a redirected window belonging to `widget` gets drawn into.
    /// The region/area members of the event shows what area of the redirected
    /// drawable was drawn into.
    ///
    ///
    ///
    ///
    /// #### `delete-event`
    ///  The ::delete-event signal is emitted if a user requests that
    /// a toplevel window is closed. The default handler for this signal
    /// destroys the window. Connecting [`WidgetExtManual::hide_on_delete()`][crate::prelude::WidgetExtManual::hide_on_delete()] to
    /// this signal will cause the window to be hidden instead, so that
    /// it can later be shown again without reconstructing it.
    ///
    ///
    ///
    ///
    /// #### `destroy`
    ///  Signals that all holders of a reference to the widget should release
    /// the reference that they hold. May result in finalization of the widget
    /// if all references are released.
    ///
    /// This signal is not suitable for saving widget state.
    ///
    ///
    ///
    ///
    /// #### `destroy-event`
    ///  The ::destroy-event signal is emitted when a [`gdk::Window`][crate::gdk::Window] is destroyed.
    /// You rarely get this signal, because most widgets disconnect themselves
    /// from their window before they destroy it, so no widget owns the
    /// window at destroy time.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `direction-changed`
    ///  The ::direction-changed signal is emitted when the text direction
    /// of a widget changes.
    ///
    ///
    ///
    ///
    /// #### `drag-begin`
    ///  The ::drag-begin signal is emitted on the drag source when a drag is
    /// started. A typical reason to connect to this signal is to set up a
    /// custom drag icon with e.g. [`WidgetExt::drag_source_set_icon_pixbuf()`][crate::prelude::WidgetExt::drag_source_set_icon_pixbuf()].
    ///
    /// Note that some widgets set up a drag icon in the default handler of
    /// this signal, so you may have to use `g_signal_connect_after()` to
    /// override what the default handler did.
    ///
    ///
    ///
    ///
    /// #### `drag-data-delete`
    ///  The ::drag-data-delete signal is emitted on the drag source when a drag
    /// with the action [`gdk::DragAction::MOVE`][crate::gdk::DragAction::MOVE] is successfully completed. The signal
    /// handler is responsible for deleting the data that has been dropped. What
    /// "delete" means depends on the context of the drag operation.
    ///
    ///
    ///
    ///
    /// #### `drag-data-get`
    ///  The ::drag-data-get signal is emitted on the drag source when the drop
    /// site requests the data which is dragged. It is the responsibility of
    /// the signal handler to fill `data` with the data in the format which
    /// is indicated by `info`. See [`SelectionData::set()`][crate::SelectionData::set()] and
    /// [`SelectionData::set_text()`][crate::SelectionData::set_text()].
    ///
    ///
    ///
    ///
    /// #### `drag-data-received`
    ///  The ::drag-data-received signal is emitted on the drop site when the
    /// dragged data has been received. If the data was received in order to
    /// determine whether the drop will be accepted, the handler is expected
    /// to call `gdk_drag_status()` and not finish the drag.
    /// If the data was received in response to a [`drag-drop`][struct@crate::Widget#drag-drop] signal
    /// (and this is the last target to be received), the handler for this
    /// signal is expected to process the received data and then call
    /// `gtk_drag_finish()`, setting the `success` parameter depending on
    /// whether the data was processed successfully.
    ///
    /// Applications must create some means to determine why the signal was emitted
    /// and therefore whether to call `gdk_drag_status()` or `gtk_drag_finish()`.
    ///
    /// The handler may inspect the selected action with
    /// [`DragContext::selected_action()`][crate::gdk::DragContext::selected_action()] before calling
    /// `gtk_drag_finish()`, e.g. to implement [`gdk::DragAction::ASK`][crate::gdk::DragAction::ASK] as
    /// shown in the following example:
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// void
    /// drag_data_received (GtkWidget          *widget,
    ///                     GdkDragContext     *context,
    ///                     gint                x,
    ///                     gint                y,
    ///                     GtkSelectionData   *data,
    ///                     guint               info,
    ///                     guint               time)
    /// {
    ///   if ((data->length >= 0) && (data->format == 8))
    ///     {
    ///       GdkDragAction action;
    ///
    ///       // handle data here
    ///
    ///       action = gdk_drag_context_get_selected_action (context);
    ///       if (action == GDK_ACTION_ASK)
    ///         {
    ///           GtkWidget *dialog;
    ///           gint response;
    ///
    ///           dialog = gtk_message_dialog_new (NULL,
    ///                                            GTK_DIALOG_MODAL |
    ///                                            GTK_DIALOG_DESTROY_WITH_PARENT,
    ///                                            GTK_MESSAGE_INFO,
    ///                                            GTK_BUTTONS_YES_NO,
    ///                                            "Move the data ?\n");
    ///           response = gtk_dialog_run (GTK_DIALOG (dialog));
    ///           gtk_widget_destroy (dialog);
    ///
    ///           if (response == GTK_RESPONSE_YES)
    ///             action = GDK_ACTION_MOVE;
    ///           else
    ///             action = GDK_ACTION_COPY;
    ///          }
    ///
    ///       gtk_drag_finish (context, TRUE, action == GDK_ACTION_MOVE, time);
    ///     }
    ///   else
    ///     gtk_drag_finish (context, FALSE, FALSE, time);
    ///  }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `drag-drop`
    ///  The ::drag-drop signal is emitted on the drop site when the user drops
    /// the data onto the widget. The signal handler must determine whether
    /// the cursor position is in a drop zone or not. If it is not in a drop
    /// zone, it returns [`false`] and no further processing is necessary.
    /// Otherwise, the handler returns [`true`]. In this case, the handler must
    /// ensure that `gtk_drag_finish()` is called to let the source know that
    /// the drop is done. The call to `gtk_drag_finish()` can be done either
    /// directly or in a [`drag-data-received`][struct@crate::Widget#drag-data-received] handler which gets
    /// triggered by calling [`WidgetExt::drag_get_data()`][crate::prelude::WidgetExt::drag_get_data()] to receive the data for one
    /// or more of the supported targets.
    ///
    ///
    ///
    ///
    /// #### `drag-end`
    ///  The ::drag-end signal is emitted on the drag source when a drag is
    /// finished. A typical reason to connect to this signal is to undo
    /// things done in [`drag-begin`][struct@crate::Widget#drag-begin].
    ///
    ///
    ///
    ///
    /// #### `drag-failed`
    ///  The ::drag-failed signal is emitted on the drag source when a drag has
    /// failed. The signal handler may hook custom code to handle a failed DnD
    /// operation based on the type of error, it returns [`true`] is the failure has
    /// been already handled (not showing the default "drag operation failed"
    /// animation), otherwise it returns [`false`].
    ///
    ///
    ///
    ///
    /// #### `drag-leave`
    ///  The ::drag-leave signal is emitted on the drop site when the cursor
    /// leaves the widget. A typical reason to connect to this signal is to
    /// undo things done in [`drag-motion`][struct@crate::Widget#drag-motion], e.g. undo highlighting
    /// with [`WidgetExt::drag_unhighlight()`][crate::prelude::WidgetExt::drag_unhighlight()].
    ///
    ///
    /// Likewise, the [`drag-leave`][struct@crate::Widget#drag-leave] signal is also emitted before the
    /// ::drag-drop signal, for instance to allow cleaning up of a preview item
    /// created in the [`drag-motion`][struct@crate::Widget#drag-motion] signal handler.
    ///
    ///
    ///
    ///
    /// #### `drag-motion`
    ///  The ::drag-motion signal is emitted on the drop site when the user
    /// moves the cursor over the widget during a drag. The signal handler
    /// must determine whether the cursor position is in a drop zone or not.
    /// If it is not in a drop zone, it returns [`false`] and no further processing
    /// is necessary. Otherwise, the handler returns [`true`]. In this case, the
    /// handler is responsible for providing the necessary information for
    /// displaying feedback to the user, by calling `gdk_drag_status()`.
    ///
    /// If the decision whether the drop will be accepted or rejected can't be
    /// made based solely on the cursor position and the type of the data, the
    /// handler may inspect the dragged data by calling [`WidgetExt::drag_get_data()`][crate::prelude::WidgetExt::drag_get_data()] and
    /// defer the `gdk_drag_status()` call to the [`drag-data-received`][struct@crate::Widget#drag-data-received]
    /// handler. Note that you must pass [`DestDefaults::DROP`][crate::DestDefaults::DROP],
    /// [`DestDefaults::MOTION`][crate::DestDefaults::MOTION] or [`DestDefaults::ALL`][crate::DestDefaults::ALL] to [`WidgetExtManual::drag_dest_set()`][crate::prelude::WidgetExtManual::drag_dest_set()]
    /// when using the drag-motion signal that way.
    ///
    /// Also note that there is no drag-enter signal. The drag receiver has to
    /// keep track of whether he has received any drag-motion signals since the
    /// last [`drag-leave`][struct@crate::Widget#drag-leave] and if not, treat the drag-motion signal as
    /// an "enter" signal. Upon an "enter", the handler will typically highlight
    /// the drop site with [`WidgetExt::drag_highlight()`][crate::prelude::WidgetExt::drag_highlight()].
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static void
    /// drag_motion (GtkWidget      *widget,
    ///              GdkDragContext *context,
    ///              gint            x,
    ///              gint            y,
    ///              guint           time)
    /// {
    ///   GdkAtom target;
    ///
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (!private_data->drag_highlight)
    ///    {
    ///      private_data->drag_highlight = 1;
    ///      gtk_drag_highlight (widget);
    ///    }
    ///
    ///   target = gtk_drag_dest_find_target (widget, context, NULL);
    ///   if (target == GDK_NONE)
    ///     gdk_drag_status (context, 0, time);
    ///   else
    ///    {
    ///      private_data->pending_status
    ///         = gdk_drag_context_get_suggested_action (context);
    ///      gtk_drag_get_data (widget, context, target, time);
    ///    }
    ///
    ///   return TRUE;
    /// }
    ///
    /// static void
    /// drag_data_received (GtkWidget        *widget,
    ///                     GdkDragContext   *context,
    ///                     gint              x,
    ///                     gint              y,
    ///                     GtkSelectionData *selection_data,
    ///                     guint             info,
    ///                     guint             time)
    /// {
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (private_data->suggested_action)
    ///    {
    ///      private_data->suggested_action = 0;
    ///
    ///      // We are getting this data due to a request in drag_motion,
    ///      // rather than due to a request in drag_drop, so we are just
    ///      // supposed to call gdk_drag_status(), not actually paste in
    ///      // the data.
    ///
    ///      str = gtk_selection_data_get_text (selection_data);
    ///      if (!data_is_acceptable (str))
    ///        gdk_drag_status (context, 0, time);
    ///      else
    ///        gdk_drag_status (context,
    ///                         private_data->suggested_action,
    ///                         time);
    ///    }
    ///   else
    ///    {
    ///      // accept the drop
    ///    }
    /// }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `draw`
    ///  This signal is emitted when a widget is supposed to render itself.
    /// The `widget`'s top left corner must be painted at the origin of
    /// the passed in context and be sized to the values returned by
    /// [`WidgetExt::allocated_width()`][crate::prelude::WidgetExt::allocated_width()] and
    /// [`WidgetExt::allocated_height()`][crate::prelude::WidgetExt::allocated_height()].
    ///
    /// Signal handlers connected to this signal can modify the cairo
    /// context passed as `cr` in any way they like and don't need to
    /// restore it. The signal emission takes care of calling `cairo_save()`
    /// before and `cairo_restore()` after invoking the handler.
    ///
    /// The signal handler will get a `cr` with a clip region already set to the
    /// widget's dirty region, i.e. to the area that needs repainting. Complicated
    /// widgets that want to avoid redrawing themselves completely can get the full
    /// extents of the clip region with `gdk_cairo_get_clip_rectangle()`, or they can
    /// get a finer-grained representation of the dirty region with
    /// `cairo_copy_clip_rectangle_list()`.
    ///
    ///
    ///
    ///
    /// #### `enter-notify-event`
    ///  The ::enter-notify-event will be emitted when the pointer enters
    /// the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::ENTER_NOTIFY_MASK`][crate::gdk::EventMask::ENTER_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `event`
    ///  The GTK+ main loop will emit three signals for each GDK event delivered
    /// to a widget: one generic ::event signal, another, more specific,
    /// signal that matches the type of event delivered (e.g.
    /// [`key-press-event`][struct@crate::Widget#key-press-event]) and finally a generic
    /// [`event-after`][struct@crate::Widget#event-after] signal.
    ///
    ///
    ///
    ///
    /// #### `event-after`
    ///  After the emission of the [`event`][struct@crate::Widget#event] signal and (optionally)
    /// the second more specific signal, ::event-after will be emitted
    /// regardless of the previous two signals handlers return values.
    ///
    ///
    ///
    ///
    /// #### `focus`
    ///
    ///
    ///
    /// #### `focus-in-event`
    ///  The ::focus-in-event signal will be emitted when the keyboard focus
    /// enters the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `focus-out-event`
    ///  The ::focus-out-event signal will be emitted when the keyboard focus
    /// leaves the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `grab-broken-event`
    ///  Emitted when a pointer or keyboard grab on a window belonging
    /// to `widget` gets broken.
    ///
    /// On X11, this happens when the grab window becomes unviewable
    /// (i.e. it or one of its ancestors is unmapped), or if the same
    /// application grabs the pointer or keyboard again.
    ///
    ///
    ///
    ///
    /// #### `grab-focus`
    ///  Action
    ///
    ///
    /// #### `grab-notify`
    ///  The ::grab-notify signal is emitted when a widget becomes
    /// shadowed by a GTK+ grab (not a pointer or keyboard grab) on
    /// another widget, or when it becomes unshadowed due to a grab
    /// being removed.
    ///
    /// A widget is shadowed by a [`WidgetExt::grab_add()`][crate::prelude::WidgetExt::grab_add()] when the topmost
    /// grab widget in the grab stack of its window group is not
    /// its ancestor.
    ///
    ///
    ///
    ///
    /// #### `hide`
    ///  The ::hide signal is emitted when `widget` is hidden, for example with
    /// [`WidgetExt::hide()`][crate::prelude::WidgetExt::hide()].
    ///
    ///
    ///
    ///
    /// #### `hierarchy-changed`
    ///  The ::hierarchy-changed signal is emitted when the
    /// anchored state of a widget changes. A widget is
    /// “anchored” when its toplevel
    /// ancestor is a [`Window`][crate::Window]. This signal is emitted when
    /// a widget changes from un-anchored to anchored or vice-versa.
    ///
    ///
    ///
    ///
    /// #### `key-press-event`
    ///  The ::key-press-event signal is emitted when a key is pressed. The signal
    /// emission will reoccur at the key-repeat rate when the key is kept pressed.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_PRESS_MASK`][crate::gdk::EventMask::KEY_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `key-release-event`
    ///  The ::key-release-event signal is emitted when a key is released.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_RELEASE_MASK`][crate::gdk::EventMask::KEY_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `keynav-failed`
    ///  Gets emitted if keyboard navigation fails.
    /// See [`WidgetExt::keynav_failed()`][crate::prelude::WidgetExt::keynav_failed()] for details.
    ///
    ///
    ///
    ///
    /// #### `leave-notify-event`
    ///  The ::leave-notify-event will be emitted when the pointer leaves
    /// the `widget`'s window.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::LEAVE_NOTIFY_MASK`][crate::gdk::EventMask::LEAVE_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `map`
    ///  The ::map signal is emitted when `widget` is going to be mapped, that is
    /// when the widget is visible (which is controlled with
    /// [`WidgetExt::set_visible()`][crate::prelude::WidgetExt::set_visible()]) and all its parents up to the toplevel widget
    /// are also visible. Once the map has occurred, [`map-event`][struct@crate::Widget#map-event] will
    /// be emitted.
    ///
    /// The ::map signal can be used to determine whether a widget will be drawn,
    /// for instance it can resume an animation that was stopped during the
    /// emission of [`unmap`][struct@crate::Widget#unmap].
    ///
    ///
    ///
    ///
    /// #### `map-event`
    ///  The ::map-event signal will be emitted when the `widget`'s window is
    /// mapped. A window is mapped when it becomes visible on the screen.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `mnemonic-activate`
    ///  The default handler for this signal activates `widget` if `group_cycling`
    /// is [`false`], or just makes `widget` grab focus if `group_cycling` is [`true`].
    ///
    ///
    ///
    ///
    /// #### `motion-notify-event`
    ///  The ::motion-notify-event signal is emitted when the pointer moves
    /// over the widget's [`gdk::Window`][crate::gdk::Window].
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget
    /// needs to enable the [`gdk::EventMask::POINTER_MOTION_MASK`][crate::gdk::EventMask::POINTER_MOTION_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `move-focus`
    ///  Action
    ///
    ///
    /// #### `parent-set`
    ///  The ::parent-set signal is emitted when a new parent
    /// has been set on a widget.
    ///
    ///
    ///
    ///
    /// #### `popup-menu`
    ///  This signal gets emitted whenever a widget should pop up a context
    /// menu. This usually happens through the standard key binding mechanism;
    /// by pressing a certain key while a widget is focused, the user can cause
    /// the widget to pop up a menu. For example, the [`Entry`][crate::Entry] widget creates
    /// a menu with clipboard commands. See the
    /// [Popup Menu Migration Checklist][checklist-popup-menu]
    /// for an example of how to use this signal.
    ///
    /// Action
    ///
    ///
    /// #### `property-notify-event`
    ///  The ::property-notify-event signal will be emitted when a property on
    /// the `widget`'s window has been changed or deleted.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROPERTY_CHANGE_MASK`][crate::gdk::EventMask::PROPERTY_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `proximity-in-event`
    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_IN_MASK`][crate::gdk::EventMask::PROXIMITY_IN_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `proximity-out-event`
    ///  To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_OUT_MASK`][crate::gdk::EventMask::PROXIMITY_OUT_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `query-tooltip`
    ///  Emitted when [`has-tooltip`][struct@crate::Widget#has-tooltip] is [`true`] and the hover timeout
    /// has expired with the cursor hovering "above" `widget`; or emitted when `widget` got
    /// focus in keyboard mode.
    ///
    /// Using the given coordinates, the signal handler should determine
    /// whether a tooltip should be shown for `widget`. If this is the case
    /// [`true`] should be returned, [`false`] otherwise. Note that if
    /// `keyboard_mode` is [`true`], the values of `x` and `y` are undefined and
    /// should not be used.
    ///
    /// The signal handler is free to manipulate `tooltip` with the therefore
    /// destined function calls.
    ///
    ///
    ///
    ///
    /// #### `realize`
    ///  The ::realize signal is emitted when `widget` is associated with a
    /// [`gdk::Window`][crate::gdk::Window], which means that [`WidgetExt::realize()`][crate::prelude::WidgetExt::realize()] has been called or the
    /// widget has been mapped (that is, it is going to be drawn).
    ///
    ///
    ///
    ///
    /// #### `screen-changed`
    ///  The ::screen-changed signal gets emitted when the
    /// screen of a widget has changed.
    ///
    ///
    ///
    ///
    /// #### `scroll-event`
    ///  The ::scroll-event signal is emitted when a button in the 4 to 7
    /// range is pressed. Wheel mice are usually configured to generate
    /// button press events for buttons 4 and 5 when the wheel is turned.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::SCROLL_MASK`][crate::gdk::EventMask::SCROLL_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `selection-clear-event`
    ///  The ::selection-clear-event signal will be emitted when the
    /// the `widget`'s window has lost ownership of a selection.
    ///
    ///
    ///
    ///
    /// #### `selection-get`
    ///
    ///
    ///
    /// #### `selection-notify-event`
    ///
    ///
    ///
    /// #### `selection-received`
    ///
    ///
    ///
    /// #### `selection-request-event`
    ///  The ::selection-request-event signal will be emitted when
    /// another client requests ownership of the selection owned by
    /// the `widget`'s window.
    ///
    ///
    ///
    ///
    /// #### `show`
    ///  The ::show signal is emitted when `widget` is shown, for example with
    /// [`WidgetExt::show()`][crate::prelude::WidgetExt::show()].
    ///
    ///
    ///
    ///
    /// #### `show-help`
    ///  Action
    ///
    ///
    /// #### `size-allocate`
    ///
    ///
    ///
    /// #### `state-changed`
    ///  The ::state-changed signal is emitted when the widget state changes.
    /// See `gtk_widget_get_state()`.
    ///
    ///
    ///
    ///
    /// #### `state-flags-changed`
    ///  The ::state-flags-changed signal is emitted when the widget state
    /// changes, see [`WidgetExt::state_flags()`][crate::prelude::WidgetExt::state_flags()].
    ///
    ///
    ///
    ///
    /// #### `style-set`
    ///  The ::style-set signal is emitted when a new style has been set
    /// on a widget. Note that style-modifying functions like
    /// `gtk_widget_modify_base()` also cause this signal to be emitted.
    ///
    /// Note that this signal is emitted for changes to the deprecated
    /// `GtkStyle`. To track changes to the [`StyleContext`][crate::StyleContext] associated
    /// with a widget, use the [`style-updated`][struct@crate::Widget#style-updated] signal.
    ///
    ///
    ///
    ///
    /// #### `style-updated`
    ///  The ::style-updated signal is a convenience signal that is emitted when the
    /// [`changed`][struct@crate::StyleContext#changed] signal is emitted on the `widget`'s associated
    /// [`StyleContext`][crate::StyleContext] as returned by [`WidgetExt::style_context()`][crate::prelude::WidgetExt::style_context()].
    ///
    /// Note that style-modifying functions like `gtk_widget_override_color()` also
    /// cause this signal to be emitted.
    ///
    ///
    ///
    ///
    /// #### `touch-event`
    ///
    ///
    ///
    /// #### `unmap`
    ///  The ::unmap signal is emitted when `widget` is going to be unmapped, which
    /// means that either it or any of its parents up to the toplevel widget have
    /// been set as hidden.
    ///
    /// As ::unmap indicates that a widget will not be shown any longer, it can be
    /// used to, for example, stop an animation on the widget.
    ///
    ///
    ///
    ///
    /// #### `unmap-event`
    ///  The ::unmap-event signal will be emitted when the `widget`'s window is
    /// unmapped. A window is unmapped when it becomes invisible on the screen.
    ///
    /// To receive this signal, the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `unrealize`
    ///  The ::unrealize signal is emitted when the [`gdk::Window`][crate::gdk::Window] associated with
    /// `widget` is destroyed, which means that [`WidgetExt::unrealize()`][crate::prelude::WidgetExt::unrealize()] has been
    /// called or the widget has been unmapped (that is, it is going to be
    /// hidden).
    ///
    ///
    ///
    ///
    /// #### `visibility-notify-event`
    ///  The ::visibility-notify-event will be emitted when the `widget`'s
    /// window is obscured or unobscured.
    ///
    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget needs
    /// to enable the [`gdk::EventMask::VISIBILITY_NOTIFY_MASK`][crate::gdk::EventMask::VISIBILITY_NOTIFY_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `window-state-event`
    ///  The ::window-state-event will be emitted when the state of the
    /// toplevel window associated to the `widget` changes.
    ///
    /// To receive this signal the [`gdk::Window`][crate::gdk::Window] associated to the widget
    /// needs to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable
    /// this mask automatically for all new windows.
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`AboutDialogExt`][trait@crate::prelude::AboutDialogExt], [`DialogExt`][trait@crate::prelude::DialogExt], [`GtkWindowExt`][trait@crate::prelude::GtkWindowExt], [`BinExt`][trait@crate::prelude::BinExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`DialogExtManual`][trait@crate::prelude::DialogExtManual], [`GtkWindowExtManual`][trait@crate::prelude::GtkWindowExtManual], [`ContainerExtManual`][trait@crate::prelude::ContainerExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkAboutDialog")]
    pub struct AboutDialog(Object<ffi::GtkAboutDialog, ffi::GtkAboutDialogClass>) @extends Dialog, Window, Bin, Container, Widget, @implements Buildable;

    match fn {
        type_ => || ffi::gtk_about_dialog_get_type(),
    }
}

impl AboutDialog {
    pub const NONE: Option<&'static AboutDialog> = None;

    /// Creates a new [`AboutDialog`][crate::AboutDialog].
    ///
    /// # Returns
    ///
    /// a newly created [`AboutDialog`][crate::AboutDialog]
    #[doc(alias = "gtk_about_dialog_new")]
    pub fn new() -> AboutDialog {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_about_dialog_new()).unsafe_cast() }
    }

    // rustdoc-stripper-ignore-next
    /// Creates a new builder-pattern struct instance to construct [`AboutDialog`] objects.
    ///
    /// This method returns an instance of [`AboutDialogBuilder`](crate::builders::AboutDialogBuilder) which can be used to create [`AboutDialog`] objects.
    pub fn builder() -> AboutDialogBuilder {
        AboutDialogBuilder::new()
    }
}

impl Default for AboutDialog {
    fn default() -> Self {
        Self::new()
    }
}

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`AboutDialog`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
#[must_use = "The builder must be built to be used"]
pub struct AboutDialogBuilder {
    builder: glib::object::ObjectBuilder<'static, AboutDialog>,
}

impl AboutDialogBuilder {
    fn new() -> Self {
        Self {
            builder: glib::object::Object::builder(),
        }
    }

    /// The people who contributed artwork to the program, as a [`None`]-terminated
    /// array of strings. Each string may contain email addresses and URLs, which
    /// will be displayed as links, see the introduction for more details.
    pub fn artists(self, artists: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("artists", artists.into()),
        }
    }

    /// The authors of the program, as a [`None`]-terminated array of strings.
    /// Each string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    pub fn authors(self, authors: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("authors", authors.into()),
        }
    }

    /// Comments about the program. This string is displayed in a label
    /// in the main dialog, thus it should be a short explanation of
    /// the main purpose of the program, not a detailed list of features.
    pub fn comments(self, comments: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("comments", comments.into()),
        }
    }

    /// Copyright information for the program.
    pub fn copyright(self, copyright: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("copyright", copyright.into()),
        }
    }

    /// The people documenting the program, as a [`None`]-terminated array of strings.
    /// Each string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    pub fn documenters(self, documenters: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("documenters", documenters.into()),
        }
    }

    /// The license of the program. This string is displayed in a
    /// text view in a secondary dialog, therefore it is fine to use
    /// a long multi-paragraph text. Note that the text is only wrapped
    /// in the text view if the "wrap-license" property is set to [`true`];
    /// otherwise the text itself must contain the intended linebreaks.
    /// When setting this property to a non-[`None`] value, the
    /// [`license-type`][struct@crate::AboutDialog#license-type] property is set to [`License::Custom`][crate::License::Custom]
    /// as a side effect.
    pub fn license(self, license: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("license", license.into()),
        }
    }

    /// The license of the program, as a value of the [`License`][crate::License] enumeration.
    ///
    /// The [`AboutDialog`][crate::AboutDialog] will automatically fill out a standard disclaimer
    /// and link the user to the appropriate online resource for the license
    /// text.
    ///
    /// If [`License::Unknown`][crate::License::Unknown] is used, the link used will be the same
    /// specified in the [`website`][struct@crate::AboutDialog#website] property.
    ///
    /// If [`License::Custom`][crate::License::Custom] is used, the current contents of the
    /// [`license`][struct@crate::AboutDialog#license] property are used.
    ///
    /// For any other [`License`][crate::License] value, the contents of the
    /// [`license`][struct@crate::AboutDialog#license] property are also set by this property as
    /// a side effect.
    pub fn license_type(self, license_type: License) -> Self {
        Self {
            builder: self.builder.property("license-type", license_type),
        }
    }

    /// A logo for the about box. If it is [`None`], the default window icon
    /// set with [`Window::set_default_icon()`][crate::Window::set_default_icon()] will be used.
    pub fn logo(self, logo: &gdk_pixbuf::Pixbuf) -> Self {
        Self {
            builder: self.builder.property("logo", logo.clone()),
        }
    }

    /// A named icon to use as the logo for the about box. This property
    /// overrides the [`logo`][struct@crate::AboutDialog#logo] property.
    pub fn logo_icon_name(self, logo_icon_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("logo-icon-name", logo_icon_name.into()),
        }
    }

    /// The name of the program.
    /// If this is not set, it defaults to `g_get_application_name()`.
    pub fn program_name(self, program_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("program-name", program_name.into()),
        }
    }

    /// Credits to the translators. This string should be marked as translatable.
    /// The string may contain email addresses and URLs, which will be displayed
    /// as links, see the introduction for more details.
    pub fn translator_credits(self, translator_credits: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("translator-credits", translator_credits.into()),
        }
    }

    /// The version of the program.
    pub fn version(self, version: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("version", version.into()),
        }
    }

    /// The URL for the link to the website of the program.
    /// This should be a string starting with "http://.
    pub fn website(self, website: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("website", website.into()),
        }
    }

    /// The label for the link to the website of the program.
    pub fn website_label(self, website_label: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("website-label", website_label.into()),
        }
    }

    /// Whether to wrap the text in the license dialog.
    pub fn wrap_license(self, wrap_license: bool) -> Self {
        Self {
            builder: self.builder.property("wrap-license", wrap_license),
        }
    }

    /// [`true`] if the dialog uses a [`HeaderBar`][crate::HeaderBar] for action buttons
    /// instead of the action-area.
    ///
    /// For technical reasons, this property is declared as an integer
    /// property, but you should only set it to [`true`] or [`false`].
    pub fn use_header_bar(self, use_header_bar: i32) -> Self {
        Self {
            builder: self.builder.property("use-header-bar", use_header_bar),
        }
    }

    /// Whether the window should receive the input focus.
    pub fn accept_focus(self, accept_focus: bool) -> Self {
        Self {
            builder: self.builder.property("accept-focus", accept_focus),
        }
    }

    /// The [`Application`][crate::Application] associated with the window.
    ///
    /// The application will be kept alive for at least as long as it
    /// has any windows associated with it (see [`ApplicationExtManual::hold()`][crate::gio::prelude::ApplicationExtManual::hold()]
    /// for a way to keep it alive without windows).
    ///
    /// Normally, the connection between the application and the window
    /// will remain until the window is destroyed, but you can explicitly
    /// remove it by setting the :application property to [`None`].
    pub fn application(self, application: &impl IsA<Application>) -> Self {
        Self {
            builder: self
                .builder
                .property("application", application.clone().upcast()),
        }
    }

    /// The widget to which this window is attached.
    /// See [`GtkWindowExt::set_attached_to()`][crate::prelude::GtkWindowExt::set_attached_to()].
    ///
    /// Examples of places where specifying this relation is useful are
    /// for instance a [`Menu`][crate::Menu] created by a [`ComboBox`][crate::ComboBox], a completion
    /// popup window created by [`Entry`][crate::Entry] or a typeahead search entry
    /// created by [`TreeView`][crate::TreeView].
    pub fn attached_to(self, attached_to: &impl IsA<Widget>) -> Self {
        Self {
            builder: self
                .builder
                .property("attached-to", attached_to.clone().upcast()),
        }
    }

    /// Whether the window should be decorated by the window manager.
    pub fn decorated(self, decorated: bool) -> Self {
        Self {
            builder: self.builder.property("decorated", decorated),
        }
    }

    pub fn default_height(self, default_height: i32) -> Self {
        Self {
            builder: self.builder.property("default-height", default_height),
        }
    }

    pub fn default_width(self, default_width: i32) -> Self {
        Self {
            builder: self.builder.property("default-width", default_width),
        }
    }

    /// Whether the window frame should have a close button.
    pub fn deletable(self, deletable: bool) -> Self {
        Self {
            builder: self.builder.property("deletable", deletable),
        }
    }

    pub fn destroy_with_parent(self, destroy_with_parent: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("destroy-with-parent", destroy_with_parent),
        }
    }

    /// Whether the window should receive the input focus when mapped.
    pub fn focus_on_map(self, focus_on_map: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-map", focus_on_map),
        }
    }

    /// Whether 'focus rectangles' are currently visible in this window.
    ///
    /// This property is maintained by GTK+ based on user input
    /// and should not be set by applications.
    pub fn focus_visible(self, focus_visible: bool) -> Self {
        Self {
            builder: self.builder.property("focus-visible", focus_visible),
        }
    }

    /// The window gravity of the window. See [`GtkWindowExt::move_()`][crate::prelude::GtkWindowExt::move_()] and [`gdk::Gravity`][crate::gdk::Gravity] for
    /// more details about window gravity.
    pub fn gravity(self, gravity: gdk::Gravity) -> Self {
        Self {
            builder: self.builder.property("gravity", gravity),
        }
    }

    /// Whether the titlebar should be hidden during maximization.
    pub fn hide_titlebar_when_maximized(self, hide_titlebar_when_maximized: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("hide-titlebar-when-maximized", hide_titlebar_when_maximized),
        }
    }

    pub fn icon(self, icon: &gdk_pixbuf::Pixbuf) -> Self {
        Self {
            builder: self.builder.property("icon", icon.clone()),
        }
    }

    /// The :icon-name property specifies the name of the themed icon to
    /// use as the window icon. See [`IconTheme`][crate::IconTheme] for more details.
    pub fn icon_name(self, icon_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("icon-name", icon_name.into()),
        }
    }

    /// Whether mnemonics are currently visible in this window.
    ///
    /// This property is maintained by GTK+ based on user input,
    /// and should not be set by applications.
    pub fn mnemonics_visible(self, mnemonics_visible: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("mnemonics-visible", mnemonics_visible),
        }
    }

    pub fn modal(self, modal: bool) -> Self {
        Self {
            builder: self.builder.property("modal", modal),
        }
    }

    pub fn resizable(self, resizable: bool) -> Self {
        Self {
            builder: self.builder.property("resizable", resizable),
        }
    }

    pub fn role(self, role: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("role", role.into()),
        }
    }

    pub fn screen(self, screen: &gdk::Screen) -> Self {
        Self {
            builder: self.builder.property("screen", screen.clone()),
        }
    }

    pub fn skip_pager_hint(self, skip_pager_hint: bool) -> Self {
        Self {
            builder: self.builder.property("skip-pager-hint", skip_pager_hint),
        }
    }

    pub fn skip_taskbar_hint(self, skip_taskbar_hint: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("skip-taskbar-hint", skip_taskbar_hint),
        }
    }

    /// The :startup-id is a write-only property for setting window's
    /// startup notification identifier. See [`GtkWindowExt::set_startup_id()`][crate::prelude::GtkWindowExt::set_startup_id()]
    /// for more details.
    pub fn startup_id(self, startup_id: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("startup-id", startup_id.into()),
        }
    }

    pub fn title(self, title: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("title", title.into()),
        }
    }

    /// The transient parent of the window. See [`GtkWindowExt::set_transient_for()`][crate::prelude::GtkWindowExt::set_transient_for()] for
    /// more details about transient windows.
    pub fn transient_for(self, transient_for: &impl IsA<Window>) -> Self {
        Self {
            builder: self
                .builder
                .property("transient-for", transient_for.clone().upcast()),
        }
    }

    pub fn type_(self, type_: WindowType) -> Self {
        Self {
            builder: self.builder.property("type", type_),
        }
    }

    pub fn type_hint(self, type_hint: gdk::WindowTypeHint) -> Self {
        Self {
            builder: self.builder.property("type-hint", type_hint),
        }
    }

    pub fn urgency_hint(self, urgency_hint: bool) -> Self {
        Self {
            builder: self.builder.property("urgency-hint", urgency_hint),
        }
    }

    pub fn window_position(self, window_position: WindowPosition) -> Self {
        Self {
            builder: self.builder.property("window-position", window_position),
        }
    }

    pub fn border_width(self, border_width: u32) -> Self {
        Self {
            builder: self.builder.property("border-width", border_width),
        }
    }

    pub fn child(self, child: &impl IsA<Widget>) -> Self {
        Self {
            builder: self.builder.property("child", child.clone().upcast()),
        }
    }

    pub fn resize_mode(self, resize_mode: ResizeMode) -> Self {
        Self {
            builder: self.builder.property("resize-mode", resize_mode),
        }
    }

    pub fn app_paintable(self, app_paintable: bool) -> Self {
        Self {
            builder: self.builder.property("app-paintable", app_paintable),
        }
    }

    pub fn can_default(self, can_default: bool) -> Self {
        Self {
            builder: self.builder.property("can-default", can_default),
        }
    }

    pub fn can_focus(self, can_focus: bool) -> Self {
        Self {
            builder: self.builder.property("can-focus", can_focus),
        }
    }

    pub fn events(self, events: gdk::EventMask) -> Self {
        Self {
            builder: self.builder.property("events", events),
        }
    }

    /// Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::Widget#hexpand] and [`vexpand`][struct@crate::Widget#vexpand]
    pub fn expand(self, expand: bool) -> Self {
        Self {
            builder: self.builder.property("expand", expand),
        }
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    pub fn focus_on_click(self, focus_on_click: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-click", focus_on_click),
        }
    }

    /// How to distribute horizontal space if widget gets extra space, see [`Align`][crate::Align]
    pub fn halign(self, halign: Align) -> Self {
        Self {
            builder: self.builder.property("halign", halign),
        }
    }

    pub fn has_default(self, has_default: bool) -> Self {
        Self {
            builder: self.builder.property("has-default", has_default),
        }
    }

    pub fn has_focus(self, has_focus: bool) -> Self {
        Self {
            builder: self.builder.property("has-focus", has_focus),
        }
    }

    /// Enables or disables the emission of [`query-tooltip`][struct@crate::Widget#query-tooltip] on `widget`.
    /// A value of [`true`] indicates that `widget` can have a tooltip, in this case
    /// the widget will be queried using [`query-tooltip`][struct@crate::Widget#query-tooltip] to determine
    /// whether it will provide a tooltip or not.
    ///
    /// Note that setting this property to [`true`] for the first time will change
    /// the event masks of the GdkWindows of this widget to include leave-notify
    /// and motion-notify events. This cannot and will not be undone when the
    /// property is set to [`false`] again.
    pub fn has_tooltip(self, has_tooltip: bool) -> Self {
        Self {
            builder: self.builder.property("has-tooltip", has_tooltip),
        }
    }

    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally. See [`WidgetExt::set_hexpand()`][crate::prelude::WidgetExt::set_hexpand()].
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the [`hexpand`][struct@crate::Widget#hexpand] property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    pub fn is_focus(self, is_focus: bool) -> Self {
        Self {
            builder: self.builder.property("is-focus", is_focus),
        }
    }

    /// Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    pub fn margin(self, margin: i32) -> Self {
        Self {
            builder: self.builder.property("margin", margin),
        }
    }

    /// Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_bottom(self, margin_bottom: i32) -> Self {
        Self {
            builder: self.builder.property("margin-bottom", margin_bottom),
        }
    }

    /// Margin on end of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_end(self, margin_end: i32) -> Self {
        Self {
            builder: self.builder.property("margin-end", margin_end),
        }
    }

    /// Margin on start of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_start(self, margin_start: i32) -> Self {
        Self {
            builder: self.builder.property("margin-start", margin_start),
        }
    }

    /// Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_top(self, margin_top: i32) -> Self {
        Self {
            builder: self.builder.property("margin-top", margin_top),
        }
    }

    pub fn name(self, name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("name", name.into()),
        }
    }

    pub fn no_show_all(self, no_show_all: bool) -> Self {
        Self {
            builder: self.builder.property("no-show-all", no_show_all),
        }
    }

    /// The requested opacity of the widget. See [`WidgetExt::set_opacity()`][crate::prelude::WidgetExt::set_opacity()] for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    pub fn opacity(self, opacity: f64) -> Self {
        Self {
            builder: self.builder.property("opacity", opacity),
        }
    }

    pub fn parent(self, parent: &impl IsA<Container>) -> Self {
        Self {
            builder: self.builder.property("parent", parent.clone().upcast()),
        }
    }

    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("tooltip-markup", tooltip_markup.into()),
        }
    }

    /// Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: [`has-tooltip`][struct@crate::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::Widget#tooltip-markup]
    /// are set, the last one wins.
    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("tooltip-text", tooltip_text.into()),
        }
    }

    /// How to distribute vertical space if widget gets extra space, see [`Align`][crate::Align]
    pub fn valign(self, valign: Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically. See [`WidgetExt::set_vexpand()`][crate::prelude::WidgetExt::set_vexpand()].
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the [`vexpand`][struct@crate::Widget#vexpand] property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`AboutDialog`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> AboutDialog {
        self.builder.build()
    }
}

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::AboutDialog>> Sealed for T {}
}

/// Trait containing all [`struct@AboutDialog`] methods.
///
/// # Implementors
///
/// [`AboutDialog`][struct@crate::AboutDialog]
pub trait AboutDialogExt: IsA<AboutDialog> + sealed::Sealed + 'static {
    /// Creates a new section in the Credits page.
    /// ## `section_name`
    /// The name of the section
    /// ## `people`
    /// The people who belong to that section
    #[doc(alias = "gtk_about_dialog_add_credit_section")]
    fn add_credit_section(&self, section_name: &str, people: &[&str]) {
        unsafe {
            ffi::gtk_about_dialog_add_credit_section(
                self.as_ref().to_glib_none().0,
                section_name.to_glib_none().0,
                people.to_glib_none().0,
            );
        }
    }

    /// Returns the string which are displayed in the artists tab
    /// of the secondary credits dialog.
    ///
    /// # Returns
    ///
    /// A
    ///  [`None`]-terminated string array containing the artists. The array is
    ///  owned by the about dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_artists")]
    #[doc(alias = "get_artists")]
    fn artists(&self) -> Vec<glib::GString> {
        unsafe {
            FromGlibPtrContainer::from_glib_none(ffi::gtk_about_dialog_get_artists(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the string which are displayed in the authors tab
    /// of the secondary credits dialog.
    ///
    /// # Returns
    ///
    /// A
    ///  [`None`]-terminated string array containing the authors. The array is
    ///  owned by the about dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_authors")]
    #[doc(alias = "get_authors")]
    fn authors(&self) -> Vec<glib::GString> {
        unsafe {
            FromGlibPtrContainer::from_glib_none(ffi::gtk_about_dialog_get_authors(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the comments string.
    ///
    /// # Returns
    ///
    /// The comments. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_comments")]
    #[doc(alias = "get_comments")]
    fn comments(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_comments(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the copyright string.
    ///
    /// # Returns
    ///
    /// The copyright string. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_copyright")]
    #[doc(alias = "get_copyright")]
    fn copyright(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_copyright(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the string which are displayed in the documenters
    /// tab of the secondary credits dialog.
    ///
    /// # Returns
    ///
    /// A
    ///  [`None`]-terminated string array containing the documenters. The
    ///  array is owned by the about dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_documenters")]
    #[doc(alias = "get_documenters")]
    fn documenters(&self) -> Vec<glib::GString> {
        unsafe {
            FromGlibPtrContainer::from_glib_none(ffi::gtk_about_dialog_get_documenters(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the license information.
    ///
    /// # Returns
    ///
    /// The license information. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_license")]
    #[doc(alias = "get_license")]
    fn license(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_license(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the license set using [`set_license_type()`][Self::set_license_type()]
    ///
    /// # Returns
    ///
    /// a [`License`][crate::License] value
    #[doc(alias = "gtk_about_dialog_get_license_type")]
    #[doc(alias = "get_license_type")]
    fn license_type(&self) -> License {
        unsafe {
            from_glib(ffi::gtk_about_dialog_get_license_type(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the pixbuf displayed as logo in the about dialog.
    ///
    /// # Returns
    ///
    /// the pixbuf displayed as logo. The
    ///  pixbuf is owned by the about dialog. If you want to keep a
    ///  reference to it, you have to call `g_object_ref()` on it.
    #[doc(alias = "gtk_about_dialog_get_logo")]
    #[doc(alias = "get_logo")]
    fn logo(&self) -> Option<gdk_pixbuf::Pixbuf> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_logo(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the icon name displayed as logo in the about dialog.
    ///
    /// # Returns
    ///
    /// the icon name displayed as logo. The string is
    ///  owned by the dialog. If you want to keep a reference
    ///  to it, you have to call `g_strdup()` on it.
    #[doc(alias = "gtk_about_dialog_get_logo_icon_name")]
    #[doc(alias = "get_logo_icon_name")]
    fn logo_icon_name(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_logo_icon_name(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the program name displayed in the about dialog.
    ///
    /// # Returns
    ///
    /// The program name. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_program_name")]
    #[doc(alias = "get_program_name")]
    fn program_name(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_program_name(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the translator credits string which is displayed
    /// in the translators tab of the secondary credits dialog.
    ///
    /// # Returns
    ///
    /// The translator credits string. The string is
    ///  owned by the about dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_translator_credits")]
    #[doc(alias = "get_translator_credits")]
    fn translator_credits(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_translator_credits(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the version string.
    ///
    /// # Returns
    ///
    /// The version string. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_version")]
    #[doc(alias = "get_version")]
    fn version(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_version(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the website URL.
    ///
    /// # Returns
    ///
    /// The website URL. The string is owned by the about
    ///  dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_website")]
    #[doc(alias = "get_website")]
    fn website(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_website(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the label used for the website link.
    ///
    /// # Returns
    ///
    /// The label used for the website link. The string is
    ///  owned by the about dialog and must not be modified.
    #[doc(alias = "gtk_about_dialog_get_website_label")]
    #[doc(alias = "get_website_label")]
    fn website_label(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_about_dialog_get_website_label(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns whether the license text in `self` is
    /// automatically wrapped.
    ///
    /// # Returns
    ///
    /// [`true`] if the license text is wrapped
    #[doc(alias = "gtk_about_dialog_get_wrap_license")]
    #[doc(alias = "get_wrap_license")]
    fn wraps_license(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_about_dialog_get_wrap_license(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Sets the strings which are displayed in the artists tab
    /// of the secondary credits dialog.
    /// ## `artists`
    /// a [`None`]-terminated array of strings
    #[doc(alias = "gtk_about_dialog_set_artists")]
    fn set_artists(&self, artists: &[&str]) {
        unsafe {
            ffi::gtk_about_dialog_set_artists(
                self.as_ref().to_glib_none().0,
                artists.to_glib_none().0,
            );
        }
    }

    /// Sets the strings which are displayed in the authors tab
    /// of the secondary credits dialog.
    /// ## `authors`
    /// a [`None`]-terminated array of strings
    #[doc(alias = "gtk_about_dialog_set_authors")]
    fn set_authors(&self, authors: &[&str]) {
        unsafe {
            ffi::gtk_about_dialog_set_authors(
                self.as_ref().to_glib_none().0,
                authors.to_glib_none().0,
            );
        }
    }

    /// Sets the comments string to display in the about dialog.
    /// This should be a short string of one or two lines.
    /// ## `comments`
    /// a comments string
    #[doc(alias = "gtk_about_dialog_set_comments")]
    fn set_comments(&self, comments: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_comments(
                self.as_ref().to_glib_none().0,
                comments.to_glib_none().0,
            );
        }
    }

    /// Sets the copyright string to display in the about dialog.
    /// This should be a short string of one or two lines.
    /// ## `copyright`
    /// the copyright string
    #[doc(alias = "gtk_about_dialog_set_copyright")]
    fn set_copyright(&self, copyright: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_copyright(
                self.as_ref().to_glib_none().0,
                copyright.to_glib_none().0,
            );
        }
    }

    /// Sets the strings which are displayed in the documenters tab
    /// of the secondary credits dialog.
    /// ## `documenters`
    /// a [`None`]-terminated array of strings
    #[doc(alias = "gtk_about_dialog_set_documenters")]
    fn set_documenters(&self, documenters: &[&str]) {
        unsafe {
            ffi::gtk_about_dialog_set_documenters(
                self.as_ref().to_glib_none().0,
                documenters.to_glib_none().0,
            );
        }
    }

    /// Sets the license information to be displayed in the secondary
    /// license dialog. If `license` is [`None`], the license button is
    /// hidden.
    /// ## `license`
    /// the license information or [`None`]
    #[doc(alias = "gtk_about_dialog_set_license")]
    fn set_license(&self, license: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_license(
                self.as_ref().to_glib_none().0,
                license.to_glib_none().0,
            );
        }
    }

    /// Sets the license of the application showing the `self` dialog from a
    /// list of known licenses.
    ///
    /// This function overrides the license set using
    /// [`set_license()`][Self::set_license()].
    /// ## `license_type`
    /// the type of license
    #[doc(alias = "gtk_about_dialog_set_license_type")]
    fn set_license_type(&self, license_type: License) {
        unsafe {
            ffi::gtk_about_dialog_set_license_type(
                self.as_ref().to_glib_none().0,
                license_type.into_glib(),
            );
        }
    }

    /// Sets the pixbuf to be displayed as logo in the about dialog.
    /// If it is [`None`], the default window icon set with
    /// [`Window::set_default_icon()`][crate::Window::set_default_icon()] will be used.
    /// ## `logo`
    /// a [`gdk_pixbuf::Pixbuf`][crate::gdk_pixbuf::Pixbuf], or [`None`]
    #[doc(alias = "gtk_about_dialog_set_logo")]
    fn set_logo(&self, logo: Option<&gdk_pixbuf::Pixbuf>) {
        unsafe {
            ffi::gtk_about_dialog_set_logo(self.as_ref().to_glib_none().0, logo.to_glib_none().0);
        }
    }

    /// Sets the pixbuf to be displayed as logo in the about dialog.
    /// If it is [`None`], the default window icon set with
    /// [`Window::set_default_icon()`][crate::Window::set_default_icon()] will be used.
    /// ## `icon_name`
    /// an icon name, or [`None`]
    #[doc(alias = "gtk_about_dialog_set_logo_icon_name")]
    fn set_logo_icon_name(&self, icon_name: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_logo_icon_name(
                self.as_ref().to_glib_none().0,
                icon_name.to_glib_none().0,
            );
        }
    }

    /// Sets the name to display in the about dialog.
    /// If this is not set, it defaults to `g_get_application_name()`.
    /// ## `name`
    /// the program name
    #[doc(alias = "gtk_about_dialog_set_program_name")]
    fn set_program_name(&self, name: &str) {
        unsafe {
            ffi::gtk_about_dialog_set_program_name(
                self.as_ref().to_glib_none().0,
                name.to_glib_none().0,
            );
        }
    }

    /// Sets the translator credits string which is displayed in
    /// the translators tab of the secondary credits dialog.
    ///
    /// The intended use for this string is to display the translator
    /// of the language which is currently used in the user interface.
    /// Using `gettext()`, a simple way to achieve that is to mark the
    /// string for translation:
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// GtkWidget *about = gtk_about_dialog_new ();
    /// gtk_about_dialog_set_translator_credits (GTK_ABOUT_DIALOG (about),
    ///                                          _("translator-credits"));
    /// ```
    /// It is a good idea to use the customary msgid “translator-credits” for this
    /// purpose, since translators will already know the purpose of that msgid, and
    /// since [`AboutDialog`][crate::AboutDialog] will detect if “translator-credits” is untranslated
    /// and hide the tab.
    /// ## `translator_credits`
    /// the translator credits
    #[doc(alias = "gtk_about_dialog_set_translator_credits")]
    fn set_translator_credits(&self, translator_credits: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_translator_credits(
                self.as_ref().to_glib_none().0,
                translator_credits.to_glib_none().0,
            );
        }
    }

    /// Sets the version string to display in the about dialog.
    /// ## `version`
    /// the version string
    #[doc(alias = "gtk_about_dialog_set_version")]
    fn set_version(&self, version: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_version(
                self.as_ref().to_glib_none().0,
                version.to_glib_none().0,
            );
        }
    }

    /// Sets the URL to use for the website link.
    /// ## `website`
    /// a URL string starting with "http://"
    #[doc(alias = "gtk_about_dialog_set_website")]
    fn set_website(&self, website: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_website(
                self.as_ref().to_glib_none().0,
                website.to_glib_none().0,
            );
        }
    }

    /// Sets the label to be used for the website link.
    /// ## `website_label`
    /// the label used for the website link
    #[doc(alias = "gtk_about_dialog_set_website_label")]
    fn set_website_label(&self, website_label: Option<&str>) {
        unsafe {
            ffi::gtk_about_dialog_set_website_label(
                self.as_ref().to_glib_none().0,
                website_label.to_glib_none().0,
            );
        }
    }

    /// Sets whether the license text in `self` is
    /// automatically wrapped.
    /// ## `wrap_license`
    /// whether to wrap the license
    #[doc(alias = "gtk_about_dialog_set_wrap_license")]
    fn set_wrap_license(&self, wrap_license: bool) {
        unsafe {
            ffi::gtk_about_dialog_set_wrap_license(
                self.as_ref().to_glib_none().0,
                wrap_license.into_glib(),
            );
        }
    }

    /// The signal which gets emitted to activate a URI.
    /// Applications may connect to it to override the default behaviour,
    /// which is to call [`show_uri_on_window()`][crate::show_uri_on_window()].
    /// ## `uri`
    /// the URI that is activated
    ///
    /// # Returns
    ///
    /// [`true`] if the link has been activated
    #[doc(alias = "activate-link")]
    fn connect_activate_link<F: Fn(&Self, &str) -> glib::Propagation + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn activate_link_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P, &str) -> glib::Propagation + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            uri: *mut libc::c_char,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(
                AboutDialog::from_glib_borrow(this).unsafe_cast_ref(),
                &glib::GString::from_glib_borrow(uri),
            )
            .into_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate-link\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    activate_link_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "artists")]
    fn connect_artists_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_artists_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::artists\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_artists_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "authors")]
    fn connect_authors_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_authors_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::authors\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_authors_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "comments")]
    fn connect_comments_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_comments_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::comments\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_comments_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "copyright")]
    fn connect_copyright_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_copyright_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::copyright\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_copyright_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "documenters")]
    fn connect_documenters_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_documenters_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::documenters\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_documenters_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "license")]
    fn connect_license_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_license_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::license\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_license_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "license-type")]
    fn connect_license_type_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_license_type_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::license-type\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_license_type_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "logo")]
    fn connect_logo_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_logo_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::logo\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_logo_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "logo-icon-name")]
    fn connect_logo_icon_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_logo_icon_name_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::logo-icon-name\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_logo_icon_name_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "program-name")]
    fn connect_program_name_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_program_name_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::program-name\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_program_name_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "translator-credits")]
    fn connect_translator_credits_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_translator_credits_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::translator-credits\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_translator_credits_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "version")]
    fn connect_version_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_version_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::version\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_version_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "website")]
    fn connect_website_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_website_trampoline<P: IsA<AboutDialog>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::website\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_website_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "website-label")]
    fn connect_website_label_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_website_label_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::website-label\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_website_label_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "wrap-license")]
    fn connect_wrap_license_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_wrap_license_trampoline<
            P: IsA<AboutDialog>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkAboutDialog,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(AboutDialog::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::wrap-license\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_wrap_license_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<AboutDialog>> AboutDialogExt for O {}

impl fmt::Display for AboutDialog {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("AboutDialog")
    }
}