// 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::Accessible;
use crate::AccessibleRole;
use crate::Actionable;
use crate::Align;
use crate::Buildable;
use crate::ConstraintTarget;
use crate::LayoutManager;
use crate::Overflow;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
#[cfg(any(feature = "v4_2", feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
use glib::object::ObjectExt;
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::transmute;

glib::wrapper! {
    /// A [`CheckButton`][crate::CheckButton] places a label next to an indicator.
    ///
    /// ![Example GtkCheckButtons](check-button.png)
    ///
    /// A [`CheckButton`][crate::CheckButton] is created by calling either [`new()`][Self::new()]
    /// or [`with_label()`][Self::with_label()].
    ///
    /// The state of a [`CheckButton`][crate::CheckButton] can be set specifically using
    /// [`CheckButtonExt::set_active()`][crate::prelude::CheckButtonExt::set_active()], and retrieved using
    /// [`CheckButtonExt::is_active()`][crate::prelude::CheckButtonExt::is_active()].
    ///
    /// # Inconsistent state
    ///
    /// In addition to "on" and "off", check buttons can be an
    /// "in between" state that is neither on nor off. This can be used
    /// e.g. when the user has selected a range of elements (such as some
    /// text or spreadsheet cells) that are affected by a check button,
    /// and the current values in that range are inconsistent.
    ///
    /// To set a [`CheckButton`][crate::CheckButton] to inconsistent state, use
    /// [`CheckButtonExt::set_inconsistent()`][crate::prelude::CheckButtonExt::set_inconsistent()].
    ///
    /// # Grouping
    ///
    /// Check buttons can be grouped together, to form mutually exclusive
    /// groups - only one of the buttons can be toggled at a time, and toggling
    /// another one will switch the currently toggled one off.
    ///
    /// Grouped check buttons use a different indicator, and are commonly referred
    /// to as *radio buttons*.
    ///
    /// ![Example GtkCheckButtons](radio-button.png)
    ///
    /// To add a [`CheckButton`][crate::CheckButton] to a group, use [`CheckButtonExt::set_group()`][crate::prelude::CheckButtonExt::set_group()].
    ///
    /// When the code must keep track of the state of a group of radio buttons, it
    /// is recommended to keep track of such state through a stateful
    /// `GAction` with a target for each button. Using the `toggled` signals to keep
    /// track of the group changes and state is discouraged.
    ///
    /// # CSS nodes
    ///
    /// ```text
    /// checkbutton[.text-button]
    /// ├── check
    /// ╰── [label]
    /// ```
    ///
    /// A [`CheckButton`][crate::CheckButton] has a main node with name checkbutton. If the
    /// `property::CheckButton::label` or `property::CheckButton::child`
    /// properties are set, it contains a child widget. The indicator node
    /// is named check when no group is set, and radio if the checkbutton
    /// is grouped together with other checkbuttons.
    ///
    /// # Accessibility
    ///
    /// [`CheckButton`][crate::CheckButton] uses the [`AccessibleRole::Checkbox`][crate::AccessibleRole::Checkbox] role.
    ///
    /// # Implements
    ///
    /// [`CheckButtonExt`][trait@crate::prelude::CheckButtonExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`ActionableExt`][trait@crate::prelude::ActionableExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual], [`ActionableExtManual`][trait@crate::prelude::ActionableExtManual]
    #[doc(alias = "GtkCheckButton")]
    pub struct CheckButton(Object<ffi::GtkCheckButton, ffi::GtkCheckButtonClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, Actionable;

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

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

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

    /// Creates a new [`CheckButton`][crate::CheckButton] with the given text.
    /// ## `label`
    /// the text for the check button.
    ///
    /// # Returns
    ///
    /// a new [`CheckButton`][crate::CheckButton]
    #[doc(alias = "gtk_check_button_new_with_label")]
    #[doc(alias = "new_with_label")]
    pub fn with_label(label: &str) -> CheckButton {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_check_button_new_with_label(label.to_glib_none().0))
                .unsafe_cast()
        }
    }

    /// Creates a new [`CheckButton`][crate::CheckButton] with the given text and a mnemonic.
    /// ## `label`
    /// The text of the button, with an underscore
    ///   in front of the mnemonic character
    ///
    /// # Returns
    ///
    /// a new [`CheckButton`][crate::CheckButton]
    #[doc(alias = "gtk_check_button_new_with_mnemonic")]
    #[doc(alias = "new_with_mnemonic")]
    pub fn with_mnemonic(label: &str) -> CheckButton {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_check_button_new_with_mnemonic(
                label.to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

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

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`CheckButton`] 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 CheckButtonBuilder {
    active: Option<bool>,
    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    child: Option<Widget>,
    group: Option<CheckButton>,
    inconsistent: Option<bool>,
    label: Option<String>,
    use_underline: Option<bool>,
    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>,
    action_name: Option<String>,
    action_target: Option<glib::Variant>,
}

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

    // rustdoc-stripper-ignore-next
    /// Build the [`CheckButton`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> CheckButton {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref active) = self.active {
            properties.push(("active", active));
        }
        #[cfg(any(feature = "v4_8", feature = "dox"))]
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref group) = self.group {
            properties.push(("group", group));
        }
        if let Some(ref inconsistent) = self.inconsistent {
            properties.push(("inconsistent", inconsistent));
        }
        if let Some(ref label) = self.label {
            properties.push(("label", label));
        }
        if let Some(ref use_underline) = self.use_underline {
            properties.push(("use-underline", use_underline));
        }
        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));
        }
        if let Some(ref action_name) = self.action_name {
            properties.push(("action-name", action_name));
        }
        if let Some(ref action_target) = self.action_target {
            properties.push(("action-target", action_target));
        }
        glib::Object::new::<CheckButton>(&properties)
    }

    /// If the check button is active.
    ///
    /// Setting `active` to [`true`] will add the `:checked:` state to both
    /// the check button and the indicator CSS node.
    pub fn active(mut self, active: bool) -> Self {
        self.active = Some(active);
        self
    }

    /// The child widget.
    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    pub fn child(mut self, child: &impl IsA<Widget>) -> Self {
        self.child = Some(child.clone().upcast());
        self
    }

    /// The check button whose group this widget belongs to.
    pub fn group(mut self, group: &impl IsA<CheckButton>) -> Self {
        self.group = Some(group.clone().upcast());
        self
    }

    /// If the check button is in an “in between” state.
    ///
    /// The inconsistent state only affects visual appearance,
    /// not the semantics of the button.
    pub fn inconsistent(mut self, inconsistent: bool) -> Self {
        self.inconsistent = Some(inconsistent);
        self
    }

    /// Text of the label inside the check button, if it contains a label widget.
    pub fn label(mut self, label: &str) -> Self {
        self.label = Some(label.to_string());
        self
    }

    /// If set, an underline in the text indicates that the following
    /// character is to be used as mnemonic.
    pub fn use_underline(mut self, use_underline: bool) -> Self {
        self.use_underline = Some(use_underline);
        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
    }

    pub fn action_name(mut self, action_name: &str) -> Self {
        self.action_name = Some(action_name.to_string());
        self
    }

    pub fn action_target(mut self, action_target: &glib::Variant) -> Self {
        self.action_target = Some(action_target.clone());
        self
    }
}

/// Trait containing all [`struct@CheckButton`] methods.
///
/// # Implementors
///
/// [`CheckButton`][struct@crate::CheckButton]
pub trait CheckButtonExt: 'static {
    /// Returns whether the check button is active.
    ///
    /// # Returns
    ///
    /// whether the check button is active
    #[doc(alias = "gtk_check_button_get_active")]
    #[doc(alias = "get_active")]
    fn is_active(&self) -> bool;

    /// Gets the child widget of @self or `NULL` if `property::CheckButton::label` is set.
    ///
    /// # Returns
    ///
    /// the child widget of @self
    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    #[doc(alias = "gtk_check_button_get_child")]
    #[doc(alias = "get_child")]
    fn child(&self) -> Option<Widget>;

    /// Returns whether the check button is in an inconsistent state.
    ///
    /// # Returns
    ///
    /// [`true`] if @self is currently in an inconsistent state
    #[doc(alias = "gtk_check_button_get_inconsistent")]
    #[doc(alias = "get_inconsistent")]
    fn is_inconsistent(&self) -> bool;

    /// Returns the label of the check button or `NULL` if `property::CheckButton::child` is set.
    ///
    /// # Returns
    ///
    /// The label @self shows next
    ///   to the indicator. If no label is shown, [`None`] will be returned.
    #[doc(alias = "gtk_check_button_get_label")]
    #[doc(alias = "get_label")]
    fn label(&self) -> Option<glib::GString>;

    /// Returns whether underlines in the label indicate mnemonics.
    ///
    /// # Returns
    ///
    /// The value of the `property::CheckButton::use-underline` property.
    ///   See [`set_use_underline()`][Self::set_use_underline()] for details on how to set
    ///   a new value.
    #[doc(alias = "gtk_check_button_get_use_underline")]
    #[doc(alias = "get_use_underline")]
    fn uses_underline(&self) -> bool;

    /// Changes the check buttons active state.
    /// ## `setting`
    /// the new value to set
    #[doc(alias = "gtk_check_button_set_active")]
    fn set_active(&self, setting: bool);

    /// Sets the child widget of @self.
    ///
    /// Note that by using this API, you take full responsibility for setting
    /// up the proper accessibility label and description information for @self.
    /// Most likely, you'll either set the accessibility label or description
    /// for @self explicitly, or you'll set a labelled-by or described-by
    /// relations from @child to @self.
    /// ## `child`
    /// the child widget
    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    #[doc(alias = "gtk_check_button_set_child")]
    fn set_child(&self, child: Option<&impl IsA<Widget>>);

    /// Adds @self to the group of @group.
    ///
    /// In a group of multiple check buttons, only one button can be active
    /// at a time. The behavior of a checkbutton in a group is also commonly
    /// known as a *radio button*.
    ///
    /// Setting the group of a check button also changes the css name of the
    /// indicator widget's CSS node to 'radio'.
    ///
    /// Setting up groups in a cycle leads to undefined behavior.
    ///
    /// Note that the same effect can be achieved via the [`Actionable`][crate::Actionable]
    /// API, by using the same action with parameter type and state type 's'
    /// for all buttons in the group, and giving each button its own target
    /// value.
    /// ## `group`
    /// another [`CheckButton`][crate::CheckButton] to
    ///   form a group with
    #[doc(alias = "gtk_check_button_set_group")]
    fn set_group(&self, group: Option<&impl IsA<CheckButton>>);

    /// Sets the [`CheckButton`][crate::CheckButton] to inconsistent state.
    ///
    /// You should turn off the inconsistent state again if the user checks
    /// the check button. This has to be done manually.
    /// ## `inconsistent`
    /// [`true`] if state is inconsistent
    #[doc(alias = "gtk_check_button_set_inconsistent")]
    fn set_inconsistent(&self, inconsistent: bool);

    /// Sets the text of @self.
    ///
    /// If `property::CheckButton::use-underline` is [`true`], an underscore
    /// in @label is interpreted as mnemonic indicator, see
    /// [`set_use_underline()`][Self::set_use_underline()] for details on this behavior.
    /// ## `label`
    /// The text shown next to the indicator, or [`None`]
    ///   to show no text
    #[doc(alias = "gtk_check_button_set_label")]
    fn set_label(&self, label: Option<&str>);

    /// Sets whether underlines in the label indicate mnemonics.
    ///
    /// If @setting is [`true`], an underscore character in @self's label
    /// indicates a mnemonic accelerator key. This behavior is similar
    /// to `property::Label::use-underline`.
    /// ## `setting`
    /// the new value to set
    #[doc(alias = "gtk_check_button_set_use_underline")]
    fn set_use_underline(&self, setting: bool);

    /// Emitted to when the check button is activated.
    ///
    /// The `::activate` signal on [`CheckButton`][crate::CheckButton] is an action signal and
    /// emitting it causes the button to animate press then release.
    ///
    /// Applications should never connect to this signal, but use the
    /// `signal::CheckButton::toggled` signal.
    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    #[doc(alias = "activate")]
    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    fn emit_activate(&self);

    /// Emitted when the buttons's `property::CheckButton::active`
    /// property changes.
    #[doc(alias = "toggled")]
    fn connect_toggled<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "active")]
    fn connect_active_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    #[doc(alias = "child")]
    fn connect_child_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "group")]
    fn connect_group_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "inconsistent")]
    fn connect_inconsistent_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "label")]
    fn connect_label_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "use-underline")]
    fn connect_use_underline_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<CheckButton>> CheckButtonExt for O {
    fn is_active(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_check_button_get_active(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    fn child(&self) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_check_button_get_child(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_inconsistent(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_check_button_get_inconsistent(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn label(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_check_button_get_label(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn uses_underline(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_check_button_get_use_underline(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn set_active(&self, setting: bool) {
        unsafe {
            ffi::gtk_check_button_set_active(self.as_ref().to_glib_none().0, setting.into_glib());
        }
    }

    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    fn set_child(&self, child: Option<&impl IsA<Widget>>) {
        unsafe {
            ffi::gtk_check_button_set_child(
                self.as_ref().to_glib_none().0,
                child.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_group(&self, group: Option<&impl IsA<CheckButton>>) {
        unsafe {
            ffi::gtk_check_button_set_group(
                self.as_ref().to_glib_none().0,
                group.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_inconsistent(&self, inconsistent: bool) {
        unsafe {
            ffi::gtk_check_button_set_inconsistent(
                self.as_ref().to_glib_none().0,
                inconsistent.into_glib(),
            );
        }
    }

    fn set_label(&self, label: Option<&str>) {
        unsafe {
            ffi::gtk_check_button_set_label(self.as_ref().to_glib_none().0, label.to_glib_none().0);
        }
    }

    fn set_use_underline(&self, setting: bool) {
        unsafe {
            ffi::gtk_check_button_set_use_underline(
                self.as_ref().to_glib_none().0,
                setting.into_glib(),
            );
        }
    }

    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    activate_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(any(feature = "v4_2", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_2")))]
    fn emit_activate(&self) {
        self.emit_by_name::<()>("activate", &[]);
    }

    fn connect_toggled<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn toggled_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"toggled\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    toggled_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_active_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_active_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::active\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_active_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(any(feature = "v4_8", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_8")))]
    fn connect_child_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_child_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::child\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_child_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_group_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_group_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::group\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_group_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_inconsistent_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_inconsistent_trampoline<
            P: IsA<CheckButton>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::inconsistent\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_inconsistent_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_label_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_label_trampoline<P: IsA<CheckButton>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        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::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_use_underline_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_use_underline_trampoline<
            P: IsA<CheckButton>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkCheckButton,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(CheckButton::from_glib_borrow(this).unsafe_cast_ref())
        }
        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::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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