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

use crate::Accessible;
use crate::AccessibleRole;
use crate::Align;
use crate::Buildable;
use crate::ConstraintTarget;
use crate::Justification;
use crate::LayoutManager;
use crate::MovementStep;
#[cfg(any(feature = "v4_6", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
use crate::NaturalWrapMode;
use crate::Overflow;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
use glib::object::ObjectExt;
use glib::object::ObjectType as ObjectType_;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem;
use std::mem::transmute;

glib::wrapper! {
    /// The [`Label`][crate::Label] widget displays a small amount of text.
    ///
    /// As the name implies, most labels are used to label another widget
    /// such as a [`Button`][crate::Button].
    ///
    /// ![An example GtkLabel](label.png)
    ///
    /// # CSS nodes
    ///
    /// ```text
    /// label
    /// ├── [selection]
    /// ├── [link]
    /// ┊
    /// ╰── [link]
    /// ```
    ///
    /// [`Label`][crate::Label] has a single CSS node with the name label. A wide variety
    /// of style classes may be applied to labels, such as .title, .subtitle,
    /// .dim-label, etc. In the [`ShortcutsWindow`][crate::ShortcutsWindow], labels are used with the
    /// .keycap style class.
    ///
    /// If the label has a selection, it gets a subnode with name selection.
    ///
    /// If the label has links, there is one subnode per link. These subnodes
    /// carry the link or visited state depending on whether they have been
    /// visited. In this case, label node also gets a .link style class.
    ///
    /// # GtkLabel as GtkBuildable
    ///
    /// The GtkLabel implementation of the GtkBuildable interface supports a
    /// custom <attributes> element, which supports any number of <attribute>
    /// elements. The <attribute> element has attributes named “name“, “value“,
    /// “start“ and “end“ and allows you to specify `Pango::Attribute`
    /// values for this label.
    ///
    /// An example of a UI definition fragment specifying Pango attributes:
    /// ```xml
    /// <object class="GtkLabel">
    ///   <attributes>
    ///     <attribute name="weight" value="PANGO_WEIGHT_BOLD"/>
    ///     <attribute name="background" value="red" start="5" end="10"/>
    ///   </attributes>
    /// </object>
    /// ```
    ///
    /// The start and end attributes specify the range of characters to which the
    /// Pango attribute applies. If start and end are not specified, the attribute is
    /// applied to the whole text. Note that specifying ranges does not make much
    /// sense with translatable attributes. Use markup embedded in the translatable
    /// content instead.
    ///
    /// # Accessibility
    ///
    /// [`Label`][crate::Label] uses the [`AccessibleRole::Label`][crate::AccessibleRole::Label] role.
    ///
    /// # Mnemonics
    ///
    /// Labels may contain “mnemonics”. Mnemonics are underlined characters in the
    /// label, used for keyboard navigation. Mnemonics are created by providing a
    /// string with an underscore before the mnemonic character, such as `"_File"`,
    /// to the functions [`with_mnemonic()`][Self::with_mnemonic()] or
    /// [`set_text_with_mnemonic()`][Self::set_text_with_mnemonic()].
    ///
    /// Mnemonics automatically activate any activatable widget the label is
    /// inside, such as a [`Button`][crate::Button]; if the label is not inside the
    /// mnemonic’s target widget, you have to tell the label about the target
    /// using [class@Gtk.Label.set_mnemonic_widget]. Here’s a simple example where
    /// the label is inside a button:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// // Pressing Alt+H will activate this button
    /// GtkWidget *button = gtk_button_new ();
    /// GtkWidget *label = gtk_label_new_with_mnemonic ("_Hello");
    /// gtk_button_set_child (GTK_BUTTON (button), label);
    /// ```
    ///
    /// There’s a convenience function to create buttons with a mnemonic label
    /// already inside:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// // Pressing Alt+H will activate this button
    /// GtkWidget *button = gtk_button_new_with_mnemonic ("_Hello");
    /// ```
    ///
    /// To create a mnemonic for a widget alongside the label, such as a
    /// [`Entry`][crate::Entry], you have to point the label at the entry with
    /// [`set_mnemonic_widget()`][Self::set_mnemonic_widget()]:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// // Pressing Alt+H will focus the entry
    /// GtkWidget *entry = gtk_entry_new ();
    /// GtkWidget *label = gtk_label_new_with_mnemonic ("_Hello");
    /// gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry);
    /// ```
    ///
    /// # Markup (styled text)
    ///
    /// To make it easy to format text in a label (changing colors,
    /// fonts, etc.), label text can be provided in a simple
    /// markup format:
    ///
    /// Here’s how to create a label with a small font:
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// GtkWidget *label = gtk_label_new (NULL);
    /// gtk_label_set_markup (GTK_LABEL (label), "<small>Small text</small>");
    /// ```
    ///
    /// (See the Pango manual for complete documentation] of available
    /// tags, `parse_markup()`)
    ///
    /// The markup passed to gtk_label_set_markup() must be valid; for example,
    /// literal <, > and & characters must be escaped as &lt;, &gt;, and &amp;.
    /// If you pass text obtained from the user, file, or a network to
    /// [`set_markup()`][Self::set_markup()], you’ll want to escape it with
    /// g_markup_escape_text() or g_markup_printf_escaped().
    ///
    /// Markup strings are just a convenient way to set the [`pango::AttrList`][crate::pango::AttrList]
    /// on a label; [`set_attributes()`][Self::set_attributes()] may be a simpler way to set
    /// attributes in some cases. Be careful though; [`pango::AttrList`][crate::pango::AttrList] tends
    /// to cause internationalization problems, unless you’re applying attributes
    /// to the entire string (i.e. unless you set the range of each attribute
    /// to [0, `G_MAXINT`)). The reason is that specifying the start_index and
    /// end_index for a `Pango::Attribute` requires knowledge of the exact
    /// string being displayed, so translations will cause problems.
    ///
    /// # Selectable labels
    ///
    /// Labels can be made selectable with [`set_selectable()`][Self::set_selectable()].
    /// Selectable labels allow the user to copy the label contents to
    /// the clipboard. Only labels that contain useful-to-copy information
    /// — such as error messages — should be made selectable.
    ///
    /// # Text layout
    ///
    /// A label can contain any number of paragraphs, but will have
    /// performance problems if it contains more than a small number.
    /// Paragraphs are separated by newlines or other paragraph separators
    /// understood by Pango.
    ///
    /// Labels can automatically wrap text if you call [`set_wrap()`][Self::set_wrap()].
    ///
    /// [`set_justify()`][Self::set_justify()] sets how the lines in a label align
    /// with one another. If you want to set how the label as a whole aligns
    /// in its available space, see the `property::Widget::halign` and
    /// `property::Widget::valign` properties.
    ///
    /// The `property::Label::width-chars` and `property::Label::max-width-chars`
    /// properties can be used to control the size allocation of ellipsized or
    /// wrapped labels. For ellipsizing labels, if either is specified (and less
    /// than the actual text size), it is used as the minimum width, and the actual
    /// text size is used as the natural width of the label. For wrapping labels,
    /// width-chars is used as the minimum width, if specified, and max-width-chars
    /// is used as the natural width. Even if max-width-chars specified, wrapping
    /// labels will be rewrapped to use all of the available width.
    ///
    /// # Links
    ///
    /// GTK supports markup for clickable hyperlinks in addition to regular Pango
    /// markup. The markup for links is borrowed from HTML, using the `<a>` with
    /// “href“, “title“ and “class“ attributes. GTK renders links similar to the
    /// way they appear in web browsers, with colored, underlined text. The “title“
    /// attribute is displayed as a tooltip on the link. The “class“ attribute is
    /// used as style class on the CSS node for the link.
    ///
    /// An example looks like this:
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// const char *text =
    /// "Go to the"
    /// "<a href=\"http://www.gtk.org title=\"&lt;i&gt;Our&lt;/i&gt; website\">"
    /// "GTK website</a> for more...";
    /// GtkWidget *label = gtk_label_new (NULL);
    /// gtk_label_set_markup (GTK_LABEL (label), text);
    /// ```
    ///
    /// It is possible to implement custom handling for links and their tooltips
    /// with the `signal::Label::activate-link` signal and the
    /// [`current_uri()`][Self::current_uri()] function.
    ///
    /// # Implements
    ///
    /// [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkLabel")]
    pub struct Label(Object<ffi::GtkLabel>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget;

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

impl Label {
    /// Creates a new label with the given text inside it.
    ///
    /// You can pass [`None`] to get an empty label widget.
    /// ## `str`
    /// The text of the label
    ///
    /// # Returns
    ///
    /// the new [`Label`][crate::Label]
    #[doc(alias = "gtk_label_new")]
    pub fn new(str: Option<&str>) -> Label {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_label_new(str.to_glib_none().0)).unsafe_cast() }
    }

    /// Creates a new [`Label`][crate::Label], containing the text in @str.
    ///
    /// If characters in @str are preceded by an underscore, they are
    /// underlined. If you need a literal underscore character in a label, use
    /// '__' (two underscores). The first underlined character represents a
    /// keyboard accelerator called a mnemonic. The mnemonic key can be used
    /// to activate another widget, chosen automatically, or explicitly using
    /// [`set_mnemonic_widget()`][Self::set_mnemonic_widget()].
    ///
    /// If [`set_mnemonic_widget()`][Self::set_mnemonic_widget()] is not called, then the first
    /// activatable ancestor of the [`Label`][crate::Label] will be chosen as the mnemonic
    /// widget. For instance, if the label is inside a button or menu item,
    /// the button or menu item will automatically become the mnemonic widget
    /// and be activated by the mnemonic.
    /// ## `str`
    /// The text of the label, with an underscore in front of the
    ///   mnemonic character
    ///
    /// # Returns
    ///
    /// the new [`Label`][crate::Label]
    #[doc(alias = "gtk_label_new_with_mnemonic")]
    #[doc(alias = "new_with_mnemonic")]
    pub fn with_mnemonic(str: &str) -> Label {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_label_new_with_mnemonic(str.to_glib_none().0))
                .unsafe_cast()
        }
    }

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

    /// Gets the labels attribute list.
    ///
    /// This is the [`pango::AttrList`][crate::pango::AttrList] that was set on the label using
    /// [`set_attributes()`][Self::set_attributes()], if any. This function does not
    /// reflect attributes that come from the labels markup (see
    /// [`set_markup()`][Self::set_markup()]). If you want to get the effective
    /// attributes for the label, use
    /// `pango_layout_get_attribute (gtk_label_get_layout (self))`.
    ///
    /// # Returns
    ///
    /// the attribute list
    #[doc(alias = "gtk_label_get_attributes")]
    #[doc(alias = "get_attributes")]
    pub fn attributes(&self) -> Option<pango::AttrList> {
        unsafe { from_glib_none(ffi::gtk_label_get_attributes(self.to_glib_none().0)) }
    }

    /// Returns the URI for the currently active link in the label.
    ///
    /// The active link is the one under the mouse pointer or, in a
    /// selectable label, the link in which the text cursor is currently
    /// positioned.
    ///
    /// This function is intended for use in a `signal::Label::activate-link`
    /// handler or for use in a `signal::Widget::query-tooltip` handler.
    ///
    /// # Returns
    ///
    /// the currently active URI
    #[doc(alias = "gtk_label_get_current_uri")]
    #[doc(alias = "get_current_uri")]
    pub fn current_uri(&self) -> Option<glib::GString> {
        unsafe { from_glib_none(ffi::gtk_label_get_current_uri(self.to_glib_none().0)) }
    }

    /// Returns the ellipsizing position of the label.
    ///
    /// See [`set_ellipsize()`][Self::set_ellipsize()].
    ///
    /// # Returns
    ///
    /// [`pango::EllipsizeMode`][crate::pango::EllipsizeMode]
    #[doc(alias = "gtk_label_get_ellipsize")]
    #[doc(alias = "get_ellipsize")]
    pub fn ellipsize(&self) -> pango::EllipsizeMode {
        unsafe { from_glib(ffi::gtk_label_get_ellipsize(self.to_glib_none().0)) }
    }

    /// Gets the extra menu model of @label.
    ///
    /// See [`set_extra_menu()`][Self::set_extra_menu()].
    ///
    /// # Returns
    ///
    /// the menu model
    #[doc(alias = "gtk_label_get_extra_menu")]
    #[doc(alias = "get_extra_menu")]
    pub fn extra_menu(&self) -> Option<gio::MenuModel> {
        unsafe { from_glib_none(ffi::gtk_label_get_extra_menu(self.to_glib_none().0)) }
    }

    /// Returns the justification of the label.
    ///
    /// See [`set_justify()`][Self::set_justify()].
    ///
    /// # Returns
    ///
    /// [`Justification`][crate::Justification]
    #[doc(alias = "gtk_label_get_justify")]
    #[doc(alias = "get_justify")]
    pub fn justify(&self) -> Justification {
        unsafe { from_glib(ffi::gtk_label_get_justify(self.to_glib_none().0)) }
    }

    /// Fetches the text from a label.
    ///
    /// The returned text includes any embedded underlines indicating
    /// mnemonics and Pango markup. (See [`text()`][Self::text()]).
    ///
    /// # Returns
    ///
    /// the text of the label widget. This string is
    ///   owned by the widget and must not be modified or freed.
    #[doc(alias = "gtk_label_get_label")]
    #[doc(alias = "get_label")]
    pub fn label(&self) -> glib::GString {
        unsafe { from_glib_none(ffi::gtk_label_get_label(self.to_glib_none().0)) }
    }

    /// Gets the [`pango::Layout`][crate::pango::Layout] used to display the label.
    ///
    /// The layout is useful to e.g. convert text positions to pixel
    /// positions, in combination with [`layout_offsets()`][Self::layout_offsets()].
    /// The returned layout is owned by the @label so need not be
    /// freed by the caller. The @label is free to recreate its layout
    /// at any time, so it should be considered read-only.
    ///
    /// # Returns
    ///
    /// the [`pango::Layout`][crate::pango::Layout] for this label
    #[doc(alias = "gtk_label_get_layout")]
    #[doc(alias = "get_layout")]
    pub fn layout(&self) -> pango::Layout {
        unsafe { from_glib_none(ffi::gtk_label_get_layout(self.to_glib_none().0)) }
    }

    /// Obtains the coordinates where the label will draw its [`pango::Layout`][crate::pango::Layout].
    ///
    /// The coordinates are useful to convert mouse events into coordinates
    /// inside the [`pango::Layout`][crate::pango::Layout], e.g. to take some action if some part
    /// of the label is clicked. Remember when using the [`pango::Layout`][crate::pango::Layout]
    /// functions you need to convert to and from pixels using PANGO_PIXELS()
    /// or `Pango::SCALE`.
    ///
    /// # Returns
    ///
    ///
    /// ## `x`
    /// location to store X offset of layout
    ///
    /// ## `y`
    /// location to store Y offset of layout
    #[doc(alias = "gtk_label_get_layout_offsets")]
    #[doc(alias = "get_layout_offsets")]
    pub fn layout_offsets(&self) -> (i32, i32) {
        unsafe {
            let mut x = mem::MaybeUninit::uninit();
            let mut y = mem::MaybeUninit::uninit();
            ffi::gtk_label_get_layout_offsets(
                self.to_glib_none().0,
                x.as_mut_ptr(),
                y.as_mut_ptr(),
            );
            (x.assume_init(), y.assume_init())
        }
    }

    /// Gets the number of lines to which an ellipsized, wrapping
    /// label should be limited.
    ///
    /// See [`set_lines()`][Self::set_lines()].
    ///
    /// # Returns
    ///
    /// The number of lines
    #[doc(alias = "gtk_label_get_lines")]
    #[doc(alias = "get_lines")]
    pub fn lines(&self) -> i32 {
        unsafe { ffi::gtk_label_get_lines(self.to_glib_none().0) }
    }

    /// Retrieves the desired maximum width of @label, in characters.
    ///
    /// See [`set_width_chars()`][Self::set_width_chars()].
    ///
    /// # Returns
    ///
    /// the maximum width of the label in characters.
    #[doc(alias = "gtk_label_get_max_width_chars")]
    #[doc(alias = "get_max_width_chars")]
    pub fn max_width_chars(&self) -> i32 {
        unsafe { ffi::gtk_label_get_max_width_chars(self.to_glib_none().0) }
    }

    /// Retrieves the target of the mnemonic (keyboard shortcut) of this
    /// label.
    ///
    /// See [`set_mnemonic_widget()`][Self::set_mnemonic_widget()].
    ///
    /// # Returns
    ///
    /// the target of the label’s mnemonic,
    ///   or [`None`] if none has been set and the default algorithm will be used.
    #[doc(alias = "gtk_label_get_mnemonic_widget")]
    #[doc(alias = "get_mnemonic_widget")]
    pub fn mnemonic_widget(&self) -> Option<Widget> {
        unsafe { from_glib_none(ffi::gtk_label_get_mnemonic_widget(self.to_glib_none().0)) }
    }

    /// Returns line wrap mode used by the label.
    ///
    /// See [`set_natural_wrap_mode()`][Self::set_natural_wrap_mode()].
    ///
    /// # Returns
    ///
    /// the natural line wrap mode
    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    #[doc(alias = "gtk_label_get_natural_wrap_mode")]
    #[doc(alias = "get_natural_wrap_mode")]
    pub fn natural_wrap_mode(&self) -> NaturalWrapMode {
        unsafe { from_glib(ffi::gtk_label_get_natural_wrap_mode(self.to_glib_none().0)) }
    }

    /// Returns whether the label is selectable.
    ///
    /// # Returns
    ///
    /// [`true`] if the user can copy text from the label
    #[doc(alias = "gtk_label_get_selectable")]
    #[doc(alias = "get_selectable")]
    pub fn is_selectable(&self) -> bool {
        unsafe { from_glib(ffi::gtk_label_get_selectable(self.to_glib_none().0)) }
    }

    /// Gets the selected range of characters in the label.
    ///
    /// # Returns
    ///
    /// [`true`] if selection is non-empty
    ///
    /// ## `start`
    /// return location for start of selection, as a character offset
    ///
    /// ## `end`
    /// return location for end of selection, as a character offset
    #[doc(alias = "gtk_label_get_selection_bounds")]
    #[doc(alias = "get_selection_bounds")]
    pub fn selection_bounds(&self) -> Option<(i32, i32)> {
        unsafe {
            let mut start = mem::MaybeUninit::uninit();
            let mut end = mem::MaybeUninit::uninit();
            let ret = from_glib(ffi::gtk_label_get_selection_bounds(
                self.to_glib_none().0,
                start.as_mut_ptr(),
                end.as_mut_ptr(),
            ));
            if ret {
                Some((start.assume_init(), end.assume_init()))
            } else {
                None
            }
        }
    }

    /// Returns whether the label is in single line mode.
    ///
    /// # Returns
    ///
    /// [`true`] when the label is in single line mode.
    #[doc(alias = "gtk_label_get_single_line_mode")]
    #[doc(alias = "get_single_line_mode")]
    pub fn is_single_line_mode(&self) -> bool {
        unsafe { from_glib(ffi::gtk_label_get_single_line_mode(self.to_glib_none().0)) }
    }

    /// Fetches the text from a label.
    ///
    /// The returned text is as it appears on screen. This does not include
    /// any embedded underlines indicating mnemonics or Pango markup. (See
    /// [`label()`][Self::label()])
    ///
    /// # Returns
    ///
    /// the text in the label widget. This is the internal
    ///   string used by the label, and must not be modified.
    #[doc(alias = "gtk_label_get_text")]
    #[doc(alias = "get_text")]
    pub fn text(&self) -> glib::GString {
        unsafe { from_glib_none(ffi::gtk_label_get_text(self.to_glib_none().0)) }
    }

    /// Returns whether the label’s text is interpreted as Pango markup.
    ///
    /// See [`set_use_markup()`][Self::set_use_markup()].
    ///
    /// # Returns
    ///
    /// [`true`] if the label’s text will be parsed for markup.
    #[doc(alias = "gtk_label_get_use_markup")]
    #[doc(alias = "get_use_markup")]
    pub fn uses_markup(&self) -> bool {
        unsafe { from_glib(ffi::gtk_label_get_use_markup(self.to_glib_none().0)) }
    }

    /// Returns whether an embedded underlines in the label indicate mnemonics.
    ///
    /// See [`set_use_underline()`][Self::set_use_underline()].
    ///
    /// # Returns
    ///
    /// [`true`] whether an embedded underline in the label indicates
    ///   the mnemonic accelerator keys.
    #[doc(alias = "gtk_label_get_use_underline")]
    #[doc(alias = "get_use_underline")]
    pub fn uses_underline(&self) -> bool {
        unsafe { from_glib(ffi::gtk_label_get_use_underline(self.to_glib_none().0)) }
    }

    /// Retrieves the desired width of @label, in characters.
    ///
    /// See [`set_width_chars()`][Self::set_width_chars()].
    ///
    /// # Returns
    ///
    /// the width of the label in characters.
    #[doc(alias = "gtk_label_get_width_chars")]
    #[doc(alias = "get_width_chars")]
    pub fn width_chars(&self) -> i32 {
        unsafe { ffi::gtk_label_get_width_chars(self.to_glib_none().0) }
    }

    /// Returns whether lines in the label are automatically wrapped.
    ///
    /// See [`set_wrap()`][Self::set_wrap()].
    ///
    /// # Returns
    ///
    /// [`true`] if the lines of the label are automatically wrapped.
    #[doc(alias = "gtk_label_get_wrap")]
    #[doc(alias = "get_wrap")]
    pub fn wraps(&self) -> bool {
        unsafe { from_glib(ffi::gtk_label_get_wrap(self.to_glib_none().0)) }
    }

    /// Returns line wrap mode used by the label.
    ///
    /// See [`set_wrap_mode()`][Self::set_wrap_mode()].
    ///
    /// # Returns
    ///
    /// the line wrap mode
    #[doc(alias = "gtk_label_get_wrap_mode")]
    #[doc(alias = "get_wrap_mode")]
    pub fn wrap_mode(&self) -> pango::WrapMode {
        unsafe { from_glib(ffi::gtk_label_get_wrap_mode(self.to_glib_none().0)) }
    }

    /// Gets the `xalign` of the label.
    ///
    /// See the `property::Label::xalign` property.
    ///
    /// # Returns
    ///
    /// the xalign property
    #[doc(alias = "gtk_label_get_xalign")]
    #[doc(alias = "get_xalign")]
    pub fn xalign(&self) -> f32 {
        unsafe { ffi::gtk_label_get_xalign(self.to_glib_none().0) }
    }

    /// Gets the `yalign` of the label.
    ///
    /// See the `property::Label::yalign` property.
    ///
    /// # Returns
    ///
    /// the yalign property
    #[doc(alias = "gtk_label_get_yalign")]
    #[doc(alias = "get_yalign")]
    pub fn yalign(&self) -> f32 {
        unsafe { ffi::gtk_label_get_yalign(self.to_glib_none().0) }
    }

    /// Selects a range of characters in the label, if the label is selectable.
    ///
    /// See [`set_selectable()`][Self::set_selectable()]. If the label is not selectable,
    /// this function has no effect. If @start_offset or
    /// @end_offset are -1, then the end of the label will be substituted.
    /// ## `start_offset`
    /// start offset (in characters not bytes)
    /// ## `end_offset`
    /// end offset (in characters not bytes)
    #[doc(alias = "gtk_label_select_region")]
    pub fn select_region(&self, start_offset: i32, end_offset: i32) {
        unsafe {
            ffi::gtk_label_select_region(self.to_glib_none().0, start_offset, end_offset);
        }
    }

    /// Apply attributes to the label text.
    ///
    /// The attributes set with this function will be applied and merged with
    /// any other attributes previously effected by way of the
    /// `property::Label::use-underline` or `property::Label::use-markup`
    /// properties. While it is not recommended to mix markup strings with
    /// manually set attributes, if you must; know that the attributes will
    /// be applied to the label after the markup string is parsed.
    /// ## `attrs`
    /// a [`pango::AttrList`][crate::pango::AttrList]
    #[doc(alias = "gtk_label_set_attributes")]
    pub fn set_attributes(&self, attrs: Option<&pango::AttrList>) {
        unsafe {
            ffi::gtk_label_set_attributes(self.to_glib_none().0, attrs.to_glib_none().0);
        }
    }

    /// Sets the mode used to ellipsizei the text.
    ///
    /// The text will be ellipsized if there is not enough space
    /// to render the entire string.
    /// ## `mode`
    /// a [`pango::EllipsizeMode`][crate::pango::EllipsizeMode]
    #[doc(alias = "gtk_label_set_ellipsize")]
    pub fn set_ellipsize(&self, mode: pango::EllipsizeMode) {
        unsafe {
            ffi::gtk_label_set_ellipsize(self.to_glib_none().0, mode.into_glib());
        }
    }

    /// Sets a menu model to add when constructing
    /// the context menu for @label.
    /// ## `model`
    /// a `GMenuModel`
    #[doc(alias = "gtk_label_set_extra_menu")]
    pub fn set_extra_menu(&self, model: Option<&impl IsA<gio::MenuModel>>) {
        unsafe {
            ffi::gtk_label_set_extra_menu(
                self.to_glib_none().0,
                model.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Sets the alignment of the lines in the text of the label relative to
    /// each other.
    ///
    /// [`Justification::Left`][crate::Justification::Left] is the default value when the widget is first created
    /// with [`new()`][Self::new()]. If you instead want to set the alignment of
    /// the label as a whole, use [`WidgetExt::set_halign()`][crate::prelude::WidgetExt::set_halign()] instead.
    /// [`set_justify()`][Self::set_justify()] has no effect on labels containing
    /// only a single line.
    /// ## `jtype`
    /// a [`Justification`][crate::Justification]
    #[doc(alias = "gtk_label_set_justify")]
    pub fn set_justify(&self, jtype: Justification) {
        unsafe {
            ffi::gtk_label_set_justify(self.to_glib_none().0, jtype.into_glib());
        }
    }

    /// Sets the text of the label.
    ///
    /// The label is interpreted as including embedded underlines and/or Pango
    /// markup depending on the values of the `property::Label::use-underline`
    /// and `property::Label::use-markup` properties.
    /// ## `str`
    /// the new text to set for the label
    #[doc(alias = "gtk_label_set_label")]
    pub fn set_label(&self, str: &str) {
        unsafe {
            ffi::gtk_label_set_label(self.to_glib_none().0, str.to_glib_none().0);
        }
    }

    /// Sets the number of lines to which an ellipsized, wrapping label
    /// should be limited.
    ///
    /// This has no effect if the label is not wrapping or ellipsized.
    /// Set this to -1 if you don’t want to limit the number of lines.
    /// ## `lines`
    /// the desired number of lines, or -1
    #[doc(alias = "gtk_label_set_lines")]
    pub fn set_lines(&self, lines: i32) {
        unsafe {
            ffi::gtk_label_set_lines(self.to_glib_none().0, lines);
        }
    }

    /// Sets the labels text and attributes from markup.
    ///
    /// The string must be marked up with Pango markup
    /// (see `parse_markup()`).
    ///
    /// If the @str is external data, you may need to escape it
    /// with g_markup_escape_text() or g_markup_printf_escaped():
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// GtkWidget *self = gtk_label_new (NULL);
    /// const char *str = "...";
    /// const char *format = "<span style=\"italic\">\%s</span>";
    /// char *markup;
    ///
    /// markup = g_markup_printf_escaped (format, str);
    /// gtk_label_set_markup (GTK_LABEL (self), markup);
    /// g_free (markup);
    /// ```
    ///
    /// This function will set the `property::Label::use-markup` property
    /// to [`true`] as a side effect.
    ///
    /// If you set the label contents using the `property::Label::label`
    /// property you should also ensure that you set the
    /// `property::Label::use-markup` property accordingly.
    ///
    /// See also: [`set_text()`][Self::set_text()]
    /// ## `str`
    /// a markup string
    #[doc(alias = "gtk_label_set_markup")]
    pub fn set_markup(&self, str: &str) {
        unsafe {
            ffi::gtk_label_set_markup(self.to_glib_none().0, str.to_glib_none().0);
        }
    }

    /// Sets the labels text, attributes and mnemonic from markup.
    ///
    /// Parses @str which is marked up with Pango markup (see `parse_markup()`),
    /// setting the label’s text and attribute list based on the parse results.
    /// If characters in @str are preceded by an underscore, they are underlined
    /// indicating that they represent a keyboard accelerator called a mnemonic.
    ///
    /// The mnemonic key can be used to activate another widget, chosen
    /// automatically, or explicitly using [`set_mnemonic_widget()`][Self::set_mnemonic_widget()].
    /// ## `str`
    /// a markup string
    #[doc(alias = "gtk_label_set_markup_with_mnemonic")]
    pub fn set_markup_with_mnemonic(&self, str: &str) {
        unsafe {
            ffi::gtk_label_set_markup_with_mnemonic(self.to_glib_none().0, str.to_glib_none().0);
        }
    }

    /// Sets the desired maximum width in characters of @label to @n_chars.
    /// ## `n_chars`
    /// the new desired maximum width, in characters.
    #[doc(alias = "gtk_label_set_max_width_chars")]
    pub fn set_max_width_chars(&self, n_chars: i32) {
        unsafe {
            ffi::gtk_label_set_max_width_chars(self.to_glib_none().0, n_chars);
        }
    }

    /// Associate the label with its mnemonic target.
    ///
    /// If the label has been set so that it has a mnemonic key (using
    /// i.e. [`set_markup_with_mnemonic()`][Self::set_markup_with_mnemonic()],
    /// [`set_text_with_mnemonic()`][Self::set_text_with_mnemonic()],
    /// [`with_mnemonic()`][Self::with_mnemonic()]
    /// or the `property::Label::use_underline` property) the label can be
    /// associated with a widget that is the target of the mnemonic. When the
    /// label is inside a widget (like a [`Button`][crate::Button] or a
    /// [`Notebook`][crate::Notebook] tab) it is automatically associated with the correct
    /// widget, but sometimes (i.e. when the target is a [`Entry`][crate::Entry] next to
    /// the label) you need to set it explicitly using this function.
    ///
    /// The target widget will be accelerated by emitting the
    /// `signal::GtkWidget::mnemonic-activate` signal on it. The default handler for
    /// this signal will activate the widget if there are no mnemonic collisions
    /// and toggle focus between the colliding widgets otherwise.
    /// ## `widget`
    /// the target [`Widget`][crate::Widget], or [`None`] to unset
    #[doc(alias = "gtk_label_set_mnemonic_widget")]
    pub fn set_mnemonic_widget(&self, widget: Option<&impl IsA<Widget>>) {
        unsafe {
            ffi::gtk_label_set_mnemonic_widget(
                self.to_glib_none().0,
                widget.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    /// Select the line wrapping for the natural size request.
    ///
    /// This only affects the natural size requested, for the actual wrapping used,
    /// see the `property::Label::wrap-mode` property.
    /// ## `wrap_mode`
    /// the line wrapping mode
    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    #[doc(alias = "gtk_label_set_natural_wrap_mode")]
    pub fn set_natural_wrap_mode(&self, wrap_mode: NaturalWrapMode) {
        unsafe {
            ffi::gtk_label_set_natural_wrap_mode(self.to_glib_none().0, wrap_mode.into_glib());
        }
    }

    /// Makes text in the label selectable.
    ///
    /// Selectable labels allow the user to select text from the label,
    /// for copy-and-paste.
    /// ## `setting`
    /// [`true`] to allow selecting text in the label
    #[doc(alias = "gtk_label_set_selectable")]
    pub fn set_selectable(&self, setting: bool) {
        unsafe {
            ffi::gtk_label_set_selectable(self.to_glib_none().0, setting.into_glib());
        }
    }

    /// Sets whether the label is in single line mode.
    /// ## `single_line_mode`
    /// [`true`] if the label should be in single line mode
    #[doc(alias = "gtk_label_set_single_line_mode")]
    pub fn set_single_line_mode(&self, single_line_mode: bool) {
        unsafe {
            ffi::gtk_label_set_single_line_mode(
                self.to_glib_none().0,
                single_line_mode.into_glib(),
            );
        }
    }

    /// Sets the text within the [`Label`][crate::Label] widget.
    ///
    /// It overwrites any text that was there before.
    ///
    /// This function will clear any previously set mnemonic accelerators,
    /// and set the `property::Label::use-underline` property] to [`false`] as
    /// a side effect.
    ///
    /// This function will set the `property::Label::use-markup` property
    /// to [`false`] as a side effect.
    ///
    /// See also: [`set_markup()`][Self::set_markup()]
    /// ## `str`
    /// The text you want to set
    #[doc(alias = "gtk_label_set_text")]
    pub fn set_text(&self, str: &str) {
        unsafe {
            ffi::gtk_label_set_text(self.to_glib_none().0, str.to_glib_none().0);
        }
    }

    /// Sets the label’s text from the string @str.
    ///
    /// If characters in @str are preceded by an underscore, they are underlined
    /// indicating that they represent a keyboard accelerator called a mnemonic.
    /// The mnemonic key can be used to activate another widget, chosen
    /// automatically, or explicitly using [`set_mnemonic_widget()`][Self::set_mnemonic_widget()].
    /// ## `str`
    /// a string
    #[doc(alias = "gtk_label_set_text_with_mnemonic")]
    pub fn set_text_with_mnemonic(&self, str: &str) {
        unsafe {
            ffi::gtk_label_set_text_with_mnemonic(self.to_glib_none().0, str.to_glib_none().0);
        }
    }

    /// Sets whether the text of the label contains markup.
    ///
    /// See [`set_markup()`][Self::set_markup()].
    /// ## `setting`
    /// [`true`] if the label’s text should be parsed for markup.
    #[doc(alias = "gtk_label_set_use_markup")]
    pub fn set_use_markup(&self, setting: bool) {
        unsafe {
            ffi::gtk_label_set_use_markup(self.to_glib_none().0, setting.into_glib());
        }
    }

    /// Sets whether underlines in the text indicate mnemonics.
    /// ## `setting`
    /// [`true`] if underlines in the text indicate mnemonics
    #[doc(alias = "gtk_label_set_use_underline")]
    pub fn set_use_underline(&self, setting: bool) {
        unsafe {
            ffi::gtk_label_set_use_underline(self.to_glib_none().0, setting.into_glib());
        }
    }

    /// Sets the desired width in characters of @label to @n_chars.
    /// ## `n_chars`
    /// the new desired width, in characters.
    #[doc(alias = "gtk_label_set_width_chars")]
    pub fn set_width_chars(&self, n_chars: i32) {
        unsafe {
            ffi::gtk_label_set_width_chars(self.to_glib_none().0, n_chars);
        }
    }

    /// Toggles line wrapping within the [`Label`][crate::Label] widget.
    ///
    /// [`true`] makes it break lines if text exceeds the widget’s size.
    /// [`false`] lets the text get cut off by the edge of the widget if
    /// it exceeds the widget size.
    ///
    /// Note that setting line wrapping to [`true`] does not make the label
    /// wrap at its parent container’s width, because GTK widgets
    /// conceptually can’t make their requisition depend on the parent
    /// container’s size. For a label that wraps at a specific position,
    /// set the label’s width using [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()].
    /// ## `wrap`
    /// the setting
    #[doc(alias = "gtk_label_set_wrap")]
    pub fn set_wrap(&self, wrap: bool) {
        unsafe {
            ffi::gtk_label_set_wrap(self.to_glib_none().0, wrap.into_glib());
        }
    }

    /// Controls how line wrapping is done.
    ///
    /// This only affects the label if line wrapping is on. (See
    /// [`set_wrap()`][Self::set_wrap()]) The default is [`pango::WrapMode::Word`][crate::pango::WrapMode::Word]
    /// which means wrap on word boundaries.
    ///
    /// For sizing behavior, also consider the `property::Label::natural-wrap-mode`
    /// property.
    /// ## `wrap_mode`
    /// the line wrapping mode
    #[doc(alias = "gtk_label_set_wrap_mode")]
    pub fn set_wrap_mode(&self, wrap_mode: pango::WrapMode) {
        unsafe {
            ffi::gtk_label_set_wrap_mode(self.to_glib_none().0, wrap_mode.into_glib());
        }
    }

    /// Sets the `xalign` of the label.
    ///
    /// See the `property::Label::xalign` property.
    /// ## `xalign`
    /// the new xalign value, between 0 and 1
    #[doc(alias = "gtk_label_set_xalign")]
    pub fn set_xalign(&self, xalign: f32) {
        unsafe {
            ffi::gtk_label_set_xalign(self.to_glib_none().0, xalign);
        }
    }

    /// Sets the `yalign` of the label.
    ///
    /// See the `property::Label::yalign` property.
    /// ## `yalign`
    /// the new yalign value, between 0 and 1
    #[doc(alias = "gtk_label_set_yalign")]
    pub fn set_yalign(&self, yalign: f32) {
        unsafe {
            ffi::gtk_label_set_yalign(self.to_glib_none().0, yalign);
        }
    }

    /// Gets emitted when the user activates a link in the label.
    ///
    /// The ::activate-current-link is a [keybinding signal](class.SignalAction.html).
    ///
    /// Applications may also emit the signal with g_signal_emit_by_name()
    /// if they need to control activation of URIs programmatically.
    ///
    /// The default bindings for this signal are all forms of the Enter key.
    #[doc(alias = "activate-current-link")]
    pub fn connect_activate_current_link<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_current_link_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate-current-link\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    activate_current_link_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_activate_current_link(&self) {
        self.emit_by_name::<()>("activate-current-link", &[]);
    }

    /// Gets emitted to activate a URI.
    ///
    /// Applications may connect to it to override the default behaviour,
    /// which is to call gtk_show_uri().
    /// ## `uri`
    /// the URI that is activated
    ///
    /// # Returns
    ///
    /// [`true`] if the link has been activated
    #[doc(alias = "activate-link")]
    pub fn connect_activate_link<F: Fn(&Self, &str) -> glib::signal::Inhibit + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn activate_link_trampoline<
            F: Fn(&Label, &str) -> glib::signal::Inhibit + 'static,
        >(
            this: *mut ffi::GtkLabel,
            uri: *mut libc::c_char,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(
                &from_glib_borrow(this),
                &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::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Gets emitted to copy the slection to the clipboard.
    ///
    /// The ::copy-clipboard signal is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default binding for this signal is Ctrl-c.
    #[doc(alias = "copy-clipboard")]
    pub fn connect_copy_clipboard<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn copy_clipboard_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"copy-clipboard\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    copy_clipboard_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_copy_clipboard(&self) {
        self.emit_by_name::<()>("copy-clipboard", &[]);
    }

    /// Gets emitted when the user initiates a cursor movement.
    ///
    /// The ::move-cursor signal is a [keybinding signal](class.SignalAction.html).
    /// If the cursor is not visible in @entry, this signal causes the viewport to
    /// be moved instead.
    ///
    /// Applications should not connect to it, but may emit it with
    /// g_signal_emit_by_name() if they need to control the cursor
    /// programmatically.
    ///
    /// The default bindings for this signal come in two variants,
    /// the variant with the Shift modifier extends the selection,
    /// the variant without the Shift modifier does not.
    /// There are too many key combinations to list them all here.
    /// - Arrow keys move by individual characters/lines
    /// - Ctrl-arrow key combinations move by words/paragraphs
    /// - Home/End keys move to the ends of the buffer
    /// ## `step`
    /// the granularity of the move, as a [`MovementStep`][crate::MovementStep]
    /// ## `count`
    /// the number of @step units to move
    /// ## `extend_selection`
    /// [`true`] if the move should extend the selection
    #[doc(alias = "move-cursor")]
    pub fn connect_move_cursor<F: Fn(&Self, MovementStep, i32, bool) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn move_cursor_trampoline<
            F: Fn(&Label, MovementStep, i32, bool) + 'static,
        >(
            this: *mut ffi::GtkLabel,
            step: ffi::GtkMovementStep,
            count: libc::c_int,
            extend_selection: glib::ffi::gboolean,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                &from_glib_borrow(this),
                from_glib(step),
                count,
                from_glib(extend_selection),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-cursor\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_cursor_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_move_cursor(&self, step: MovementStep, count: i32, extend_selection: bool) {
        self.emit_by_name::<()>("move-cursor", &[&step, &count, &extend_selection]);
    }

    #[doc(alias = "attributes")]
    pub fn connect_attributes_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_attributes_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::attributes\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_attributes_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "ellipsize")]
    pub fn connect_ellipsize_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_ellipsize_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::ellipsize\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_ellipsize_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "extra-menu")]
    pub fn connect_extra_menu_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_extra_menu_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::extra-menu\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_extra_menu_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "justify")]
    pub fn connect_justify_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_justify_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::justify\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_justify_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

    #[doc(alias = "lines")]
    pub fn connect_lines_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_lines_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::lines\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_lines_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-width-chars")]
    pub fn connect_max_width_chars_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_width_chars_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-width-chars\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_max_width_chars_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "mnemonic-keyval")]
    pub fn connect_mnemonic_keyval_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_mnemonic_keyval_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::mnemonic-keyval\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_mnemonic_keyval_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "mnemonic-widget")]
    pub fn connect_mnemonic_widget_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_mnemonic_widget_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::mnemonic-widget\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_mnemonic_widget_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    #[doc(alias = "natural-wrap-mode")]
    pub fn connect_natural_wrap_mode_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_natural_wrap_mode_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::natural-wrap-mode\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_natural_wrap_mode_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "selectable")]
    pub fn connect_selectable_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_selectable_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::selectable\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_selectable_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "single-line-mode")]
    pub fn connect_single_line_mode_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_single_line_mode_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::single-line-mode\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_single_line_mode_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "use-markup")]
    pub fn connect_use_markup_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_use_markup_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::use-markup\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_use_markup_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "use-underline")]
    pub fn connect_use_underline_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_use_underline_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::use-underline\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_use_underline_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "width-chars")]
    pub fn connect_width_chars_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_width_chars_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::width-chars\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_width_chars_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

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

    #[doc(alias = "xalign")]
    pub fn connect_xalign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_xalign_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::xalign\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_xalign_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "yalign")]
    pub fn connect_yalign_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_yalign_trampoline<F: Fn(&Label) + 'static>(
            this: *mut ffi::GtkLabel,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::yalign\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_yalign_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl Default for Label {
    fn default() -> Self {
        glib::object::Object::new::<Self>(&[])
            .expect("Can't construct Label object with default parameters")
    }
}

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`Label`] 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 LabelBuilder {
    attributes: Option<pango::AttrList>,
    ellipsize: Option<pango::EllipsizeMode>,
    extra_menu: Option<gio::MenuModel>,
    justify: Option<Justification>,
    label: Option<String>,
    lines: Option<i32>,
    max_width_chars: Option<i32>,
    mnemonic_widget: Option<Widget>,
    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    natural_wrap_mode: Option<NaturalWrapMode>,
    selectable: Option<bool>,
    single_line_mode: Option<bool>,
    use_markup: Option<bool>,
    use_underline: Option<bool>,
    width_chars: Option<i32>,
    wrap: Option<bool>,
    wrap_mode: Option<pango::WrapMode>,
    xalign: Option<f32>,
    yalign: Option<f32>,
    can_focus: Option<bool>,
    can_target: Option<bool>,
    css_classes: Option<Vec<String>>,
    css_name: Option<String>,
    cursor: Option<gdk::Cursor>,
    focus_on_click: Option<bool>,
    focusable: Option<bool>,
    halign: Option<Align>,
    has_tooltip: Option<bool>,
    height_request: Option<i32>,
    hexpand: Option<bool>,
    hexpand_set: Option<bool>,
    layout_manager: Option<LayoutManager>,
    margin_bottom: Option<i32>,
    margin_end: Option<i32>,
    margin_start: Option<i32>,
    margin_top: Option<i32>,
    name: Option<String>,
    opacity: Option<f64>,
    overflow: Option<Overflow>,
    receives_default: Option<bool>,
    sensitive: Option<bool>,
    tooltip_markup: Option<String>,
    tooltip_text: Option<String>,
    valign: Option<Align>,
    vexpand: Option<bool>,
    vexpand_set: Option<bool>,
    visible: Option<bool>,
    width_request: Option<i32>,
    accessible_role: Option<AccessibleRole>,
}

impl LabelBuilder {
    // rustdoc-stripper-ignore-next
    /// Create a new [`LabelBuilder`].
    pub fn new() -> Self {
        Self::default()
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`Label`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> Label {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref attributes) = self.attributes {
            properties.push(("attributes", attributes));
        }
        if let Some(ref ellipsize) = self.ellipsize {
            properties.push(("ellipsize", ellipsize));
        }
        if let Some(ref extra_menu) = self.extra_menu {
            properties.push(("extra-menu", extra_menu));
        }
        if let Some(ref justify) = self.justify {
            properties.push(("justify", justify));
        }
        if let Some(ref label) = self.label {
            properties.push(("label", label));
        }
        if let Some(ref lines) = self.lines {
            properties.push(("lines", lines));
        }
        if let Some(ref max_width_chars) = self.max_width_chars {
            properties.push(("max-width-chars", max_width_chars));
        }
        if let Some(ref mnemonic_widget) = self.mnemonic_widget {
            properties.push(("mnemonic-widget", mnemonic_widget));
        }
        #[cfg(any(feature = "v4_6", feature = "dox"))]
        if let Some(ref natural_wrap_mode) = self.natural_wrap_mode {
            properties.push(("natural-wrap-mode", natural_wrap_mode));
        }
        if let Some(ref selectable) = self.selectable {
            properties.push(("selectable", selectable));
        }
        if let Some(ref single_line_mode) = self.single_line_mode {
            properties.push(("single-line-mode", single_line_mode));
        }
        if let Some(ref use_markup) = self.use_markup {
            properties.push(("use-markup", use_markup));
        }
        if let Some(ref use_underline) = self.use_underline {
            properties.push(("use-underline", use_underline));
        }
        if let Some(ref width_chars) = self.width_chars {
            properties.push(("width-chars", width_chars));
        }
        if let Some(ref wrap) = self.wrap {
            properties.push(("wrap", wrap));
        }
        if let Some(ref wrap_mode) = self.wrap_mode {
            properties.push(("wrap-mode", wrap_mode));
        }
        if let Some(ref xalign) = self.xalign {
            properties.push(("xalign", xalign));
        }
        if let Some(ref yalign) = self.yalign {
            properties.push(("yalign", yalign));
        }
        if let Some(ref can_focus) = self.can_focus {
            properties.push(("can-focus", can_focus));
        }
        if let Some(ref can_target) = self.can_target {
            properties.push(("can-target", can_target));
        }
        if let Some(ref css_classes) = self.css_classes {
            properties.push(("css-classes", css_classes));
        }
        if let Some(ref css_name) = self.css_name {
            properties.push(("css-name", css_name));
        }
        if let Some(ref cursor) = self.cursor {
            properties.push(("cursor", cursor));
        }
        if let Some(ref focus_on_click) = self.focus_on_click {
            properties.push(("focus-on-click", focus_on_click));
        }
        if let Some(ref focusable) = self.focusable {
            properties.push(("focusable", focusable));
        }
        if let Some(ref halign) = self.halign {
            properties.push(("halign", halign));
        }
        if let Some(ref has_tooltip) = self.has_tooltip {
            properties.push(("has-tooltip", has_tooltip));
        }
        if let Some(ref height_request) = self.height_request {
            properties.push(("height-request", height_request));
        }
        if let Some(ref hexpand) = self.hexpand {
            properties.push(("hexpand", hexpand));
        }
        if let Some(ref hexpand_set) = self.hexpand_set {
            properties.push(("hexpand-set", hexpand_set));
        }
        if let Some(ref layout_manager) = self.layout_manager {
            properties.push(("layout-manager", layout_manager));
        }
        if let Some(ref margin_bottom) = self.margin_bottom {
            properties.push(("margin-bottom", margin_bottom));
        }
        if let Some(ref margin_end) = self.margin_end {
            properties.push(("margin-end", margin_end));
        }
        if let Some(ref margin_start) = self.margin_start {
            properties.push(("margin-start", margin_start));
        }
        if let Some(ref margin_top) = self.margin_top {
            properties.push(("margin-top", margin_top));
        }
        if let Some(ref name) = self.name {
            properties.push(("name", name));
        }
        if let Some(ref opacity) = self.opacity {
            properties.push(("opacity", opacity));
        }
        if let Some(ref overflow) = self.overflow {
            properties.push(("overflow", overflow));
        }
        if let Some(ref receives_default) = self.receives_default {
            properties.push(("receives-default", receives_default));
        }
        if let Some(ref sensitive) = self.sensitive {
            properties.push(("sensitive", sensitive));
        }
        if let Some(ref tooltip_markup) = self.tooltip_markup {
            properties.push(("tooltip-markup", tooltip_markup));
        }
        if let Some(ref tooltip_text) = self.tooltip_text {
            properties.push(("tooltip-text", tooltip_text));
        }
        if let Some(ref valign) = self.valign {
            properties.push(("valign", valign));
        }
        if let Some(ref vexpand) = self.vexpand {
            properties.push(("vexpand", vexpand));
        }
        if let Some(ref vexpand_set) = self.vexpand_set {
            properties.push(("vexpand-set", vexpand_set));
        }
        if let Some(ref visible) = self.visible {
            properties.push(("visible", visible));
        }
        if let Some(ref width_request) = self.width_request {
            properties.push(("width-request", width_request));
        }
        if let Some(ref accessible_role) = self.accessible_role {
            properties.push(("accessible-role", accessible_role));
        }
        glib::Object::new::<Label>(&properties).expect("Failed to create an instance of Label")
    }

    /// A list of style attributes to apply to the text of the label.
    pub fn attributes(mut self, attributes: &pango::AttrList) -> Self {
        self.attributes = Some(attributes.clone());
        self
    }

    /// The preferred place to ellipsize the string, if the label does
    /// not have enough room to display the entire string.
    ///
    /// Note that setting this property to a value other than
    /// [`pango::EllipsizeMode::None`][crate::pango::EllipsizeMode::None] has the side-effect that the label requests
    /// only enough space to display the ellipsis "...". In particular, this
    /// means that ellipsizing labels do not work well in notebook tabs, unless
    /// the `property::NotebookPage::tab-expand` child property is set to [`true`].
    /// Other ways to set a label's width are [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()]
    /// and [`Label::set_width_chars()`][crate::Label::set_width_chars()].
    pub fn ellipsize(mut self, ellipsize: pango::EllipsizeMode) -> Self {
        self.ellipsize = Some(ellipsize);
        self
    }

    /// A menu model whose contents will be appended to the context menu.
    pub fn extra_menu(mut self, extra_menu: &impl IsA<gio::MenuModel>) -> Self {
        self.extra_menu = Some(extra_menu.clone().upcast());
        self
    }

    /// The alignment of the lines in the text of the label, relative to each other.
    ///
    /// This does *not* affect the alignment of the label within its allocation.
    /// See `property::Label::xalign` for that.
    pub fn justify(mut self, justify: Justification) -> Self {
        self.justify = Some(justify);
        self
    }

    /// The contents of the label.
    ///
    /// If the string contains Pango markup (see `parse_markup()`),
    /// you will have to set the `property::Label::use-markup` property to
    /// [`true`] in order for the label to display the markup attributes. See also
    /// [`Label::set_markup()`][crate::Label::set_markup()] for a convenience function that sets both
    /// this property and the `property::Label::use-markup` property at the
    /// same time.
    ///
    /// If the string contains underlines acting as mnemonics, you will have to
    /// set the `property::Label::use-underline` property to [`true`] in order
    /// for the label to display them.
    pub fn label(mut self, label: &str) -> Self {
        self.label = Some(label.to_string());
        self
    }

    /// The number of lines to which an ellipsized, wrapping label
    /// should be limited.
    ///
    /// This property has no effect if the label is not wrapping or ellipsized.
    /// Set this property to -1 if you don't want to limit the number of lines.
    pub fn lines(mut self, lines: i32) -> Self {
        self.lines = Some(lines);
        self
    }

    /// The desired maximum width of the label, in characters.
    ///
    /// If this property is set to -1, the width will be calculated automatically.
    ///
    /// See the section on [text layout](class.Label.html#text-layout) for details of how
    /// `property::Label::width-chars` and `property::Label::max-width-chars`
    /// determine the width of ellipsized and wrapped labels.
    pub fn max_width_chars(mut self, max_width_chars: i32) -> Self {
        self.max_width_chars = Some(max_width_chars);
        self
    }

    /// The widget to be activated when the labels mnemonic key is pressed.
    pub fn mnemonic_widget(mut self, mnemonic_widget: &impl IsA<Widget>) -> Self {
        self.mnemonic_widget = Some(mnemonic_widget.clone().upcast());
        self
    }

    /// Select the line wrapping for the natural size request.
    ///
    /// This only affects the natural size requested. For the actual wrapping used,
    /// see the `property::Label::wrap-mode` property.
    ///
    /// The default is [`NaturalWrapMode::Inherit`][crate::NaturalWrapMode::Inherit], which inherits the behavior of the
    /// `property::Label::wrap-mode` property.
    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    pub fn natural_wrap_mode(mut self, natural_wrap_mode: NaturalWrapMode) -> Self {
        self.natural_wrap_mode = Some(natural_wrap_mode);
        self
    }

    /// Whether the label text can be selected with the mouse.
    pub fn selectable(mut self, selectable: bool) -> Self {
        self.selectable = Some(selectable);
        self
    }

    /// Whether the label is in single line mode.
    ///
    /// In single line mode, the height of the label does not depend on the
    /// actual text, it is always set to ascent + descent of the font. This
    /// can be an advantage in situations where resizing the label because
    /// of text changes would be distracting, e.g. in a statusbar.
    pub fn single_line_mode(mut self, single_line_mode: bool) -> Self {
        self.single_line_mode = Some(single_line_mode);
        self
    }

    /// [`true`] if the text of the label includes Pango markup.
    ///
    /// See `parse_markup()`.
    pub fn use_markup(mut self, use_markup: bool) -> Self {
        self.use_markup = Some(use_markup);
        self
    }

    /// [`true`] if the text of the label indicates a mnemonic with _.
    pub fn use_underline(mut self, use_underline: bool) -> Self {
        self.use_underline = Some(use_underline);
        self
    }

    /// The desired width of the label, in characters.
    ///
    /// If this property is set to -1, the width will be calculated automatically.
    ///
    /// See the section on [text layout](class.Label.html#text-layout) for details of how
    /// `property::Label::width-chars` and `property::Label::max-width-chars`
    /// determine the width of ellipsized and wrapped labels.
    pub fn width_chars(mut self, width_chars: i32) -> Self {
        self.width_chars = Some(width_chars);
        self
    }

    /// [`true`] if the label text will wrap if it gets too wide.
    pub fn wrap(mut self, wrap: bool) -> Self {
        self.wrap = Some(wrap);
        self
    }

    /// Controls how the line wrapping is done.
    ///
    /// This only affects the formatting if line wrapping is on (see the
    /// `property::Label::wrap` property). The default is [`pango::WrapMode::Word`][crate::pango::WrapMode::Word],
    /// which means wrap on word boundaries.
    ///
    /// For sizing behavior, also consider the `property::Label::natural-wrap-mode`
    /// property.
    pub fn wrap_mode(mut self, wrap_mode: pango::WrapMode) -> Self {
        self.wrap_mode = Some(wrap_mode);
        self
    }

    /// The horizontal alignment of the label text inside its size allocation.
    ///
    /// Compare this to `property::Widget::halign`, which determines how the
    /// labels size allocation is positioned in the space available for the label.
    pub fn xalign(mut self, xalign: f32) -> Self {
        self.xalign = Some(xalign);
        self
    }

    /// The vertical alignment of the label text inside its size allocation.
    ///
    /// Compare this to `property::Widget::valign`, which determines how the
    /// labels size allocation is positioned in the space available for the label.
    pub fn yalign(mut self, yalign: f32) -> Self {
        self.yalign = Some(yalign);
        self
    }

    /// Whether the widget or any of its descendents can accept
    /// the input focus.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn can_focus(mut self, can_focus: bool) -> Self {
        self.can_focus = Some(can_focus);
        self
    }

    /// Whether the widget can receive pointer events.
    pub fn can_target(mut self, can_target: bool) -> Self {
        self.can_target = Some(can_target);
        self
    }

    /// A list of css classes applied to this widget.
    pub fn css_classes(mut self, css_classes: Vec<String>) -> Self {
        self.css_classes = Some(css_classes);
        self
    }

    /// The name of this widget in the CSS tree.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn css_name(mut self, css_name: &str) -> Self {
        self.css_name = Some(css_name.to_string());
        self
    }

    /// The cursor used by @widget.
    pub fn cursor(mut self, cursor: &gdk::Cursor) -> Self {
        self.cursor = Some(cursor.clone());
        self
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    pub fn focus_on_click(mut self, focus_on_click: bool) -> Self {
        self.focus_on_click = Some(focus_on_click);
        self
    }

    /// Whether this widget itself will accept the input focus.
    pub fn focusable(mut self, focusable: bool) -> Self {
        self.focusable = Some(focusable);
        self
    }

    /// How to distribute horizontal space if widget gets extra space.
    pub fn halign(mut self, halign: Align) -> Self {
        self.halign = Some(halign);
        self
    }

    /// Enables or disables the emission of the ::query-tooltip signal on @widget.
    ///
    /// A value of [`true`] indicates that @widget can have a tooltip, in this case
    /// the widget will be queried using `signal::Widget::query-tooltip` to
    /// determine whether it will provide a tooltip or not.
    pub fn has_tooltip(mut self, has_tooltip: bool) -> Self {
        self.has_tooltip = Some(has_tooltip);
        self
    }

    /// Override for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn height_request(mut self, height_request: i32) -> Self {
        self.height_request = Some(height_request);
        self
    }

    /// Whether to expand horizontally.
    pub fn hexpand(mut self, hexpand: bool) -> Self {
        self.hexpand = Some(hexpand);
        self
    }

    /// Whether to use the `hexpand` property.
    pub fn hexpand_set(mut self, hexpand_set: bool) -> Self {
        self.hexpand_set = Some(hexpand_set);
        self
    }

    /// The [`LayoutManager`][crate::LayoutManager] instance to use to compute the preferred size
    /// of the widget, and allocate its children.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn layout_manager(mut self, layout_manager: &impl IsA<LayoutManager>) -> Self {
        self.layout_manager = Some(layout_manager.clone().upcast());
        self
    }

    /// 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(mut self, margin_bottom: i32) -> Self {
        self.margin_bottom = Some(margin_bottom);
        self
    }

    /// 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(mut self, margin_end: i32) -> Self {
        self.margin_end = Some(margin_end);
        self
    }

    /// 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(mut self, margin_start: i32) -> Self {
        self.margin_start = Some(margin_start);
        self
    }

    /// 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(mut self, margin_top: i32) -> Self {
        self.margin_top = Some(margin_top);
        self
    }

    /// The name of the widget.
    pub fn name(mut self, name: &str) -> Self {
        self.name = Some(name.to_string());
        self
    }

    /// The requested opacity of the widget.
    pub fn opacity(mut self, opacity: f64) -> Self {
        self.opacity = Some(opacity);
        self
    }

    /// How content outside the widget's content area is treated.
    ///
    /// This property is meant to be set by widget implementations,
    /// typically in their instance init function.
    pub fn overflow(mut self, overflow: Overflow) -> Self {
        self.overflow = Some(overflow);
        self
    }

    /// Whether the widget will receive the default action when it is focused.
    pub fn receives_default(mut self, receives_default: bool) -> Self {
        self.receives_default = Some(receives_default);
        self
    }

    /// Whether the widget responds to input.
    pub fn sensitive(mut self, sensitive: bool) -> Self {
        self.sensitive = Some(sensitive);
        self
    }

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with Pango markup.
    ///
    /// 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`]:
    /// `property::Widget::has-tooltip` will automatically be set to [`true`]
    /// and there will be taken care of `signal::Widget::query-tooltip` in
    /// the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and
    /// `property::Widget::tooltip-markup` are set, the last one wins.
    pub fn tooltip_markup(mut self, tooltip_markup: &str) -> Self {
        self.tooltip_markup = Some(tooltip_markup.to_string());
        self
    }

    /// 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`]:
    /// `property::Widget::has-tooltip` will automatically be set to [`true`]
    /// and there will be taken care of `signal::Widget::query-tooltip` in
    /// the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and
    /// `property::Widget::tooltip-markup` are set, the last one wins.
    pub fn tooltip_text(mut self, tooltip_text: &str) -> Self {
        self.tooltip_text = Some(tooltip_text.to_string());
        self
    }

    /// How to distribute vertical space if widget gets extra space.
    pub fn valign(mut self, valign: Align) -> Self {
        self.valign = Some(valign);
        self
    }

    /// Whether to expand vertically.
    pub fn vexpand(mut self, vexpand: bool) -> Self {
        self.vexpand = Some(vexpand);
        self
    }

    /// Whether to use the `vexpand` property.
    pub fn vexpand_set(mut self, vexpand_set: bool) -> Self {
        self.vexpand_set = Some(vexpand_set);
        self
    }

    /// Whether the widget is visible.
    pub fn visible(mut self, visible: bool) -> Self {
        self.visible = Some(visible);
        self
    }

    /// Override for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn width_request(mut self, width_request: i32) -> Self {
        self.width_request = Some(width_request);
        self
    }

    /// The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    pub fn accessible_role(mut self, accessible_role: AccessibleRole) -> Self {
        self.accessible_role = Some(accessible_role);
        self
    }
}

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