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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)
// DO NOT EDIT

use crate::Actionable;
use crate::Adjustment;
use crate::Align;
use crate::Bin;
use crate::Buildable;
use crate::Button;
use crate::Container;
use crate::IconSize;
use crate::Orientable;
use crate::Orientation;
use crate::PositionType;
use crate::ReliefStyle;
use crate::ResizeMode;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
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! {
    /// [`ScaleButton`][crate::ScaleButton] provides a button which pops up a scale widget.
    /// This kind of widget is commonly used for volume controls in multimedia
    /// applications, and GTK+ provides a [`VolumeButton`][crate::VolumeButton] subclass that
    /// is tailored for this use case.
    ///
    /// # CSS nodes
    ///
    /// GtkScaleButton has a single CSS node with name button. To differentiate
    /// it from a plain [`Button`][crate::Button], it gets the .scale style class.
    ///
    /// The popup widget that contains the scale has a .scale-popup style class.
    ///
    /// # Implements
    ///
    /// [`ScaleButtonExt`][trait@crate::prelude::ScaleButtonExt], [`ButtonExt`][trait@crate::prelude::ButtonExt], [`BinExt`][trait@crate::prelude::BinExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ActionableExt`][trait@crate::prelude::ActionableExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`ContainerExtManual`][trait@crate::prelude::ContainerExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkScaleButton")]
    pub struct ScaleButton(Object<ffi::GtkScaleButton, ffi::GtkScaleButtonClass>) @extends Button, Bin, Container, Widget, @implements Buildable, Actionable, Orientable;

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

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

    /// Creates a [`ScaleButton`][crate::ScaleButton], with a range between `min` and `max`, with
    /// a stepping of `step`.
    /// ## `size`
    /// a stock icon size ([`IconSize`][crate::IconSize])
    /// ## `min`
    /// the minimum value of the scale (usually 0)
    /// ## `max`
    /// the maximum value of the scale (usually 100)
    /// ## `step`
    /// the stepping of value when a scroll-wheel event,
    ///  or up/down arrow event occurs (usually 2)
    /// ## `icons`
    /// a [`None`]-terminated
    ///  array of icon names, or [`None`] if you want to set the list
    ///  later with [`ScaleButtonExt::set_icons()`][crate::prelude::ScaleButtonExt::set_icons()]
    ///
    /// # Returns
    ///
    /// a new [`ScaleButton`][crate::ScaleButton]
    #[doc(alias = "gtk_scale_button_new")]
    pub fn new(size: IconSize, min: f64, max: f64, step: f64, icons: &[&str]) -> ScaleButton {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_scale_button_new(
                size.into_glib(),
                min,
                max,
                step,
                icons.to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

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

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`ScaleButton`] 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 ScaleButtonBuilder {
    adjustment: Option<Adjustment>,
    icons: Option<Vec<String>>,
    size: Option<IconSize>,
    value: Option<f64>,
    always_show_image: Option<bool>,
    image: Option<Widget>,
    image_position: Option<PositionType>,
    label: Option<String>,
    relief: Option<ReliefStyle>,
    use_underline: Option<bool>,
    border_width: Option<u32>,
    child: Option<Widget>,
    resize_mode: Option<ResizeMode>,
    app_paintable: Option<bool>,
    can_default: Option<bool>,
    can_focus: Option<bool>,
    events: Option<gdk::EventMask>,
    expand: Option<bool>,
    #[cfg(any(feature = "v3_20", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v3_20")))]
    focus_on_click: Option<bool>,
    halign: Option<Align>,
    has_default: Option<bool>,
    has_focus: Option<bool>,
    has_tooltip: Option<bool>,
    height_request: Option<i32>,
    hexpand: Option<bool>,
    hexpand_set: Option<bool>,
    is_focus: Option<bool>,
    margin: Option<i32>,
    margin_bottom: Option<i32>,
    margin_end: Option<i32>,
    margin_start: Option<i32>,
    margin_top: Option<i32>,
    name: Option<String>,
    no_show_all: Option<bool>,
    opacity: Option<f64>,
    parent: Option<Container>,
    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>,
    action_name: Option<String>,
    action_target: Option<glib::Variant>,
    orientation: Option<Orientation>,
}

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

    // rustdoc-stripper-ignore-next
    /// Build the [`ScaleButton`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> ScaleButton {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref adjustment) = self.adjustment {
            properties.push(("adjustment", adjustment));
        }
        if let Some(ref icons) = self.icons {
            properties.push(("icons", icons));
        }
        if let Some(ref size) = self.size {
            properties.push(("size", size));
        }
        if let Some(ref value) = self.value {
            properties.push(("value", value));
        }
        if let Some(ref always_show_image) = self.always_show_image {
            properties.push(("always-show-image", always_show_image));
        }
        if let Some(ref image) = self.image {
            properties.push(("image", image));
        }
        if let Some(ref image_position) = self.image_position {
            properties.push(("image-position", image_position));
        }
        if let Some(ref label) = self.label {
            properties.push(("label", label));
        }
        if let Some(ref relief) = self.relief {
            properties.push(("relief", relief));
        }
        if let Some(ref use_underline) = self.use_underline {
            properties.push(("use-underline", use_underline));
        }
        if let Some(ref border_width) = self.border_width {
            properties.push(("border-width", border_width));
        }
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref resize_mode) = self.resize_mode {
            properties.push(("resize-mode", resize_mode));
        }
        if let Some(ref app_paintable) = self.app_paintable {
            properties.push(("app-paintable", app_paintable));
        }
        if let Some(ref can_default) = self.can_default {
            properties.push(("can-default", can_default));
        }
        if let Some(ref can_focus) = self.can_focus {
            properties.push(("can-focus", can_focus));
        }
        if let Some(ref events) = self.events {
            properties.push(("events", events));
        }
        if let Some(ref expand) = self.expand {
            properties.push(("expand", expand));
        }
        #[cfg(any(feature = "v3_20", feature = "dox"))]
        if let Some(ref focus_on_click) = self.focus_on_click {
            properties.push(("focus-on-click", focus_on_click));
        }
        if let Some(ref halign) = self.halign {
            properties.push(("halign", halign));
        }
        if let Some(ref has_default) = self.has_default {
            properties.push(("has-default", has_default));
        }
        if let Some(ref has_focus) = self.has_focus {
            properties.push(("has-focus", has_focus));
        }
        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 is_focus) = self.is_focus {
            properties.push(("is-focus", is_focus));
        }
        if let Some(ref margin) = self.margin {
            properties.push(("margin", margin));
        }
        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 no_show_all) = self.no_show_all {
            properties.push(("no-show-all", no_show_all));
        }
        if let Some(ref opacity) = self.opacity {
            properties.push(("opacity", opacity));
        }
        if let Some(ref parent) = self.parent {
            properties.push(("parent", parent));
        }
        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 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));
        }
        if let Some(ref orientation) = self.orientation {
            properties.push(("orientation", orientation));
        }
        glib::Object::new::<ScaleButton>(&properties)
            .expect("Failed to create an instance of ScaleButton")
    }

    pub fn adjustment(mut self, adjustment: &impl IsA<Adjustment>) -> Self {
        self.adjustment = Some(adjustment.clone().upcast());
        self
    }

    /// The names of the icons to be used by the scale button.
    /// The first item in the array will be used in the button
    /// when the current value is the lowest value, the second
    /// item for the highest value. All the subsequent icons will
    /// be used for all the other values, spread evenly over the
    /// range of values.
    ///
    /// If there's only one icon name in the `icons` array, it will
    /// be used for all the values. If only two icon names are in
    /// the `icons` array, the first one will be used for the bottom
    /// 50% of the scale, and the second one for the top 50%.
    ///
    /// It is recommended to use at least 3 icons so that the
    /// [`ScaleButton`][crate::ScaleButton] reflects the current value of the scale
    /// better for the users.
    pub fn icons(mut self, icons: Vec<String>) -> Self {
        self.icons = Some(icons);
        self
    }

    pub fn size(mut self, size: IconSize) -> Self {
        self.size = Some(size);
        self
    }

    pub fn value(mut self, value: f64) -> Self {
        self.value = Some(value);
        self
    }

    /// If [`true`], the button will ignore the `property::Settings::gtk-button-images`
    /// setting and always show the image, if available.
    ///
    /// Use this property if the button would be useless or hard to use
    /// without the image.
    pub fn always_show_image(mut self, always_show_image: bool) -> Self {
        self.always_show_image = Some(always_show_image);
        self
    }

    /// The child widget to appear next to the button text.
    pub fn image(mut self, image: &impl IsA<Widget>) -> Self {
        self.image = Some(image.clone().upcast());
        self
    }

    /// The position of the image relative to the text inside the button.
    pub fn image_position(mut self, image_position: PositionType) -> Self {
        self.image_position = Some(image_position);
        self
    }

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

    pub fn relief(mut self, relief: ReliefStyle) -> Self {
        self.relief = Some(relief);
        self
    }

    pub fn use_underline(mut self, use_underline: bool) -> Self {
        self.use_underline = Some(use_underline);
        self
    }

    pub fn border_width(mut self, border_width: u32) -> Self {
        self.border_width = Some(border_width);
        self
    }

    pub fn child(mut self, child: &impl IsA<Widget>) -> Self {
        self.child = Some(child.clone().upcast());
        self
    }

    pub fn resize_mode(mut self, resize_mode: ResizeMode) -> Self {
        self.resize_mode = Some(resize_mode);
        self
    }

    pub fn app_paintable(mut self, app_paintable: bool) -> Self {
        self.app_paintable = Some(app_paintable);
        self
    }

    pub fn can_default(mut self, can_default: bool) -> Self {
        self.can_default = Some(can_default);
        self
    }

    pub fn can_focus(mut self, can_focus: bool) -> Self {
        self.can_focus = Some(can_focus);
        self
    }

    pub fn events(mut self, events: gdk::EventMask) -> Self {
        self.events = Some(events);
        self
    }

    /// Whether to expand in both directions. Setting this sets both `property::Widget::hexpand` and `property::Widget::vexpand`
    pub fn expand(mut self, expand: bool) -> Self {
        self.expand = Some(expand);
        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.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    #[cfg(any(feature = "v3_20", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v3_20")))]
    pub fn focus_on_click(mut self, focus_on_click: bool) -> Self {
        self.focus_on_click = Some(focus_on_click);
        self
    }

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

    pub fn has_default(mut self, has_default: bool) -> Self {
        self.has_default = Some(has_default);
        self
    }

    pub fn has_focus(mut self, has_focus: bool) -> Self {
        self.has_focus = Some(has_focus);
        self
    }

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

    pub fn height_request(mut self, height_request: i32) -> Self {
        self.height_request = Some(height_request);
        self
    }

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

    /// Whether to use the `property::Widget::hexpand` property. See [`WidgetExt::is_hexpand_set()`][crate::prelude::WidgetExt::is_hexpand_set()].
    pub fn hexpand_set(mut self, hexpand_set: bool) -> Self {
        self.hexpand_set = Some(hexpand_set);
        self
    }

    pub fn is_focus(mut self, is_focus: bool) -> Self {
        self.is_focus = Some(is_focus);
        self
    }

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

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

    pub fn no_show_all(mut self, no_show_all: bool) -> Self {
        self.no_show_all = Some(no_show_all);
        self
    }

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

    pub fn parent(mut self, parent: &impl IsA<Container>) -> Self {
        self.parent = Some(parent.clone().upcast());
        self
    }

    pub fn receives_default(mut self, receives_default: bool) -> Self {
        self.receives_default = Some(receives_default);
        self
    }

    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 the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: `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, see [`Align`][crate::Align]
    pub fn valign(mut self, valign: Align) -> Self {
        self.valign = Some(valign);
        self
    }

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

    /// Whether to use the `property::Widget::vexpand` property. See [`WidgetExt::is_vexpand_set()`][crate::prelude::WidgetExt::is_vexpand_set()].
    pub fn vexpand_set(mut self, vexpand_set: bool) -> Self {
        self.vexpand_set = Some(vexpand_set);
        self
    }

    pub fn visible(mut self, visible: bool) -> Self {
        self.visible = Some(visible);
        self
    }

    pub fn width_request(mut self, width_request: i32) -> Self {
        self.width_request = Some(width_request);
        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
    }

    /// The orientation of the orientable.
    pub fn orientation(mut self, orientation: Orientation) -> Self {
        self.orientation = Some(orientation);
        self
    }
}

/// Trait containing all [`struct@ScaleButton`] methods.
///
/// # Implementors
///
/// [`ScaleButton`][struct@crate::ScaleButton], [`VolumeButton`][struct@crate::VolumeButton]
pub trait ScaleButtonExt: 'static {
    /// Gets the [`Adjustment`][crate::Adjustment] associated with the [`ScaleButton`][crate::ScaleButton]’s scale.
    /// See [`RangeExt::adjustment()`][crate::prelude::RangeExt::adjustment()] for details.
    ///
    /// # Returns
    ///
    /// the adjustment associated with the scale
    #[doc(alias = "gtk_scale_button_get_adjustment")]
    #[doc(alias = "get_adjustment")]
    fn adjustment(&self) -> Adjustment;

    /// Retrieves the minus button of the [`ScaleButton`][crate::ScaleButton].
    ///
    /// # Returns
    ///
    /// the minus button of the [`ScaleButton`][crate::ScaleButton] as a [`Button`][crate::Button]
    #[doc(alias = "gtk_scale_button_get_minus_button")]
    #[doc(alias = "get_minus_button")]
    fn minus_button(&self) -> Option<Button>;

    /// Retrieves the plus button of the [`ScaleButton`][crate::ScaleButton].
    ///
    /// # Returns
    ///
    /// the plus button of the [`ScaleButton`][crate::ScaleButton] as a [`Button`][crate::Button]
    #[doc(alias = "gtk_scale_button_get_plus_button")]
    #[doc(alias = "get_plus_button")]
    fn plus_button(&self) -> Option<Button>;

    /// Retrieves the popup of the [`ScaleButton`][crate::ScaleButton].
    ///
    /// # Returns
    ///
    /// the popup of the [`ScaleButton`][crate::ScaleButton]
    #[doc(alias = "gtk_scale_button_get_popup")]
    #[doc(alias = "get_popup")]
    fn popup(&self) -> Option<Widget>;

    /// Gets the current value of the scale button.
    ///
    /// # Returns
    ///
    /// current value of the scale button
    #[doc(alias = "gtk_scale_button_get_value")]
    #[doc(alias = "get_value")]
    fn value(&self) -> f64;

    /// Sets the [`Adjustment`][crate::Adjustment] to be used as a model
    /// for the [`ScaleButton`][crate::ScaleButton]’s scale.
    /// See [`RangeExt::set_adjustment()`][crate::prelude::RangeExt::set_adjustment()] for details.
    /// ## `adjustment`
    /// a [`Adjustment`][crate::Adjustment]
    #[doc(alias = "gtk_scale_button_set_adjustment")]
    fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>);

    /// Sets the icons to be used by the scale button.
    /// For details, see the `property::ScaleButton::icons` property.
    /// ## `icons`
    /// a [`None`]-terminated array of icon names
    #[doc(alias = "gtk_scale_button_set_icons")]
    fn set_icons(&self, icons: &[&str]);

    /// Sets the current value of the scale; if the value is outside
    /// the minimum or maximum range values, it will be clamped to fit
    /// inside them. The scale button emits the `signal::ScaleButton::value-changed`
    /// signal if the value changes.
    /// ## `value`
    /// new value of the scale button
    #[doc(alias = "gtk_scale_button_set_value")]
    fn set_value(&self, value: f64);

    /// The names of the icons to be used by the scale button.
    /// The first item in the array will be used in the button
    /// when the current value is the lowest value, the second
    /// item for the highest value. All the subsequent icons will
    /// be used for all the other values, spread evenly over the
    /// range of values.
    ///
    /// If there's only one icon name in the `icons` array, it will
    /// be used for all the values. If only two icon names are in
    /// the `icons` array, the first one will be used for the bottom
    /// 50% of the scale, and the second one for the top 50%.
    ///
    /// It is recommended to use at least 3 icons so that the
    /// [`ScaleButton`][crate::ScaleButton] reflects the current value of the scale
    /// better for the users.
    fn icons(&self) -> Vec<glib::GString>;

    fn size(&self) -> IconSize;

    fn set_size(&self, size: IconSize);

    /// The ::popdown signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to popdown the scale widget.
    ///
    /// The default binding for this signal is Escape.
    #[doc(alias = "popdown")]
    fn connect_popdown<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_popdown(&self);

    /// The ::popup signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to popup the scale widget.
    ///
    /// The default bindings for this signal are Space, Enter and Return.
    #[doc(alias = "popup")]
    fn connect_popup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_popup(&self);

    /// The ::value-changed signal is emitted when the value field has
    /// changed.
    /// ## `value`
    /// the new value
    #[doc(alias = "value-changed")]
    fn connect_value_changed<F: Fn(&Self, f64) + 'static>(&self, f: F) -> SignalHandlerId;

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

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

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

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

impl<O: IsA<ScaleButton>> ScaleButtonExt for O {
    fn adjustment(&self) -> Adjustment {
        unsafe {
            from_glib_none(ffi::gtk_scale_button_get_adjustment(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn minus_button(&self) -> Option<Button> {
        unsafe {
            from_glib_none(ffi::gtk_scale_button_get_minus_button(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn plus_button(&self) -> Option<Button> {
        unsafe {
            from_glib_none(ffi::gtk_scale_button_get_plus_button(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn popup(&self) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_scale_button_get_popup(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn value(&self) -> f64 {
        unsafe { ffi::gtk_scale_button_get_value(self.as_ref().to_glib_none().0) }
    }

    fn set_adjustment(&self, adjustment: &impl IsA<Adjustment>) {
        unsafe {
            ffi::gtk_scale_button_set_adjustment(
                self.as_ref().to_glib_none().0,
                adjustment.as_ref().to_glib_none().0,
            );
        }
    }

    fn set_icons(&self, icons: &[&str]) {
        unsafe {
            ffi::gtk_scale_button_set_icons(self.as_ref().to_glib_none().0, icons.to_glib_none().0);
        }
    }

    fn set_value(&self, value: f64) {
        unsafe {
            ffi::gtk_scale_button_set_value(self.as_ref().to_glib_none().0, value);
        }
    }

    fn icons(&self) -> Vec<glib::GString> {
        glib::ObjectExt::property(self.as_ref(), "icons")
    }

    fn size(&self) -> IconSize {
        glib::ObjectExt::property(self.as_ref(), "size")
    }

    fn set_size(&self, size: IconSize) {
        glib::ObjectExt::set_property(self.as_ref(), "size", &size)
    }

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

    fn emit_popdown(&self) {
        self.emit_by_name::<()>("popdown", &[]);
    }

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

    fn emit_popup(&self) {
        self.emit_by_name::<()>("popup", &[]);
    }

    fn connect_value_changed<F: Fn(&Self, f64) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn value_changed_trampoline<
            P: IsA<ScaleButton>,
            F: Fn(&P, f64) + 'static,
        >(
            this: *mut ffi::GtkScaleButton,
            value: libc::c_double,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ScaleButton::from_glib_borrow(this).unsafe_cast_ref(), value)
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"value-changed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    value_changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

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

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

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

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