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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::LayoutManager;
use crate::LevelBarMode;
use crate::Orientable;
use crate::Orientation;
use crate::Overflow;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
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! {
    /// [`LevelBar`][crate::LevelBar] is a widget that can be used as a level indicator.
    ///
    /// Typical use cases are displaying the strength of a password, or
    /// showing the charge level of a battery.
    ///
    /// ![An example GtkLevelBar](levelbar.png)
    ///
    /// Use [``set_value()``][`Self::set_value()`] to set the current value, and
    /// [``add_offset_value()``][`Self::add_offset_value()`] to set the value offsets at which
    /// the bar will be considered in a different state. GTK will add a few
    /// offsets by default on the level bar: [`LEVEL_BAR_OFFSET_LOW`][crate::LEVEL_BAR_OFFSET_LOW],
    /// [`LEVEL_BAR_OFFSET_HIGH`][crate::LEVEL_BAR_OFFSET_HIGH] and [`LEVEL_BAR_OFFSET_FULL`][crate::LEVEL_BAR_OFFSET_FULL], with
    /// values 0.25, 0.75 and 1.0 respectively.
    ///
    /// Note that it is your responsibility to update preexisting offsets
    /// when changing the minimum or maximum value. GTK will simply clamp
    /// them to the new range.
    ///
    /// ## Adding a custom offset on the bar
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// static GtkWidget *
    /// create_level_bar (void)
    /// {
    ///   GtkWidget *widget;
    ///   GtkLevelBar *bar;
    ///
    ///   widget = gtk_level_bar_new ();
    ///   bar = GTK_LEVEL_BAR (widget);
    ///
    ///   // This changes the value of the default low offset
    ///
    ///   gtk_level_bar_add_offset_value (bar,
    ///                                   GTK_LEVEL_BAR_OFFSET_LOW,
    ///                                   0.10);
    ///
    ///   // This adds a new offset to the bar; the application will
    ///   // be able to change its color CSS like this:
    ///   //
    ///   // levelbar block.my-offset {
    ///   //   background-color: magenta;
    ///   //   border-style: solid;
    ///   //   border-color: black;
    ///   //   border-style: 1px;
    ///   // }
    ///
    ///   gtk_level_bar_add_offset_value (bar, "my-offset", 0.60);
    ///
    ///   return widget;
    /// }
    /// ```
    ///
    /// The default interval of values is between zero and one, but it’s possible
    /// to modify the interval using [``set_min_value()``][`Self::set_min_value()`] and
    /// [``set_max_value()``][`Self::set_max_value()`]. The value will be always drawn in
    /// proportion to the admissible interval, i.e. a value of 15 with a specified
    /// interval between 10 and 20 is equivalent to a value of 0.5 with an interval
    /// between 0 and 1. When [`LevelBarMode::Discrete`][crate::LevelBarMode::Discrete] is used, the bar level
    /// is rendered as a finite number of separated blocks instead of a single one.
    /// The number of blocks that will be rendered is equal to the number of units
    /// specified by the admissible interval.
    ///
    /// For instance, to build a bar rendered with five blocks, it’s sufficient to
    /// set the minimum value to 0 and the maximum value to 5 after changing the
    /// indicator mode to discrete.
    ///
    /// # GtkLevelBar as GtkBuildable
    ///
    /// The [`LevelBar`][crate::LevelBar] implementation of the [`Buildable`][crate::Buildable] interface supports a
    /// custom `<offsets>` element, which can contain any number of `<offset>` elements,
    /// each of which must have name and value attributes.
    ///
    /// # CSS nodes
    ///
    /// ```text
    /// levelbar[.discrete]
    /// ╰── trough
    ///     ├── block.filled.level-name
    ///     ┊
    ///     ├── block.empty
    ///     ┊
    /// ```
    ///
    /// [`LevelBar`][crate::LevelBar] has a main CSS node with name levelbar and one of the style
    /// classes .discrete or .continuous and a subnode with name trough. Below the
    /// trough node are a number of nodes with name block and style class .filled
    /// or .empty. In continuous mode, there is exactly one node of each, in discrete
    /// mode, the number of filled and unfilled nodes corresponds to blocks that are
    /// drawn. The block.filled nodes also get a style class .level-name corresponding
    /// to the level for the current value.
    ///
    /// In horizontal orientation, the nodes are always arranged from left to right,
    /// regardless of text direction.
    ///
    /// # Accessibility
    ///
    /// [`LevelBar`][crate::LevelBar] uses the [`AccessibleRole::Meter`][crate::AccessibleRole::Meter] role.
    ///
    /// # Implements
    ///
    /// [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkLevelBar")]
    pub struct LevelBar(Object<ffi::GtkLevelBar>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, Orientable;

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

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

    /// Creates a new [`LevelBar`][crate::LevelBar] for the specified interval.
    /// ## `min_value`
    /// a positive value
    /// ## `max_value`
    /// a positive value
    ///
    /// # Returns
    ///
    /// a [`LevelBar`][crate::LevelBar]
    #[doc(alias = "gtk_level_bar_new_for_interval")]
    #[doc(alias = "new_for_interval")]
    pub fn for_interval(min_value: f64, max_value: f64) -> LevelBar {
        assert_initialized_main_thread!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_level_bar_new_for_interval(min_value, max_value))
                .unsafe_cast()
        }
    }

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

    /// Adds a new offset marker on `self` at the position specified by `value`.
    ///
    /// When the bar value is in the interval topped by `value` (or between `value`
    /// and `property::LevelBar::max-value` in case the offset is the last one
    /// on the bar) a style class named `level-``name` will be applied
    /// when rendering the level bar fill.
    ///
    /// If another offset marker named `name` exists, its value will be
    /// replaced by `value`.
    /// ## `name`
    /// the name of the new offset
    /// ## `value`
    /// the value for the new offset
    #[doc(alias = "gtk_level_bar_add_offset_value")]
    pub fn add_offset_value(&self, name: &str, value: f64) {
        unsafe {
            ffi::gtk_level_bar_add_offset_value(
                self.to_glib_none().0,
                name.to_glib_none().0,
                value,
            );
        }
    }

    /// Returns whether the levelbar is inverted.
    ///
    /// # Returns
    ///
    /// [`true`] if the level bar is inverted
    #[doc(alias = "gtk_level_bar_get_inverted")]
    #[doc(alias = "get_inverted")]
    pub fn is_inverted(&self) -> bool {
        unsafe { from_glib(ffi::gtk_level_bar_get_inverted(self.to_glib_none().0)) }
    }

    /// Returns the `max-value` of the [`LevelBar`][crate::LevelBar].
    ///
    /// # Returns
    ///
    /// a positive value
    #[doc(alias = "gtk_level_bar_get_max_value")]
    #[doc(alias = "get_max_value")]
    pub fn max_value(&self) -> f64 {
        unsafe { ffi::gtk_level_bar_get_max_value(self.to_glib_none().0) }
    }

    /// Returns the `min-value of the [`LevelBar`][crate::LevelBar].
    ///
    /// # Returns
    ///
    /// a positive value
    #[doc(alias = "gtk_level_bar_get_min_value")]
    #[doc(alias = "get_min_value")]
    pub fn min_value(&self) -> f64 {
        unsafe { ffi::gtk_level_bar_get_min_value(self.to_glib_none().0) }
    }

    /// Returns the `mode` of the [`LevelBar`][crate::LevelBar].
    ///
    /// # Returns
    ///
    /// a [`LevelBarMode`][crate::LevelBarMode]
    #[doc(alias = "gtk_level_bar_get_mode")]
    #[doc(alias = "get_mode")]
    pub fn mode(&self) -> LevelBarMode {
        unsafe { from_glib(ffi::gtk_level_bar_get_mode(self.to_glib_none().0)) }
    }

    /// Fetches the value specified for the offset marker `name` in `self`.
    /// ## `name`
    /// the name of an offset in the bar
    ///
    /// # Returns
    ///
    /// [`true`] if the specified offset is found
    ///
    /// ## `value`
    /// location where to store the value
    #[doc(alias = "gtk_level_bar_get_offset_value")]
    #[doc(alias = "get_offset_value")]
    pub fn offset_value(&self, name: Option<&str>) -> Option<f64> {
        unsafe {
            let mut value = mem::MaybeUninit::uninit();
            let ret = from_glib(ffi::gtk_level_bar_get_offset_value(
                self.to_glib_none().0,
                name.to_glib_none().0,
                value.as_mut_ptr(),
            ));
            let value = value.assume_init();
            if ret {
                Some(value)
            } else {
                None
            }
        }
    }

    /// Returns the `value` of the [`LevelBar`][crate::LevelBar].
    ///
    /// # Returns
    ///
    /// a value in the interval between
    ///  `property::LevelBar::min-value`[ and `property::LevelBar::max-value`
    #[doc(alias = "gtk_level_bar_get_value")]
    #[doc(alias = "get_value")]
    pub fn value(&self) -> f64 {
        unsafe { ffi::gtk_level_bar_get_value(self.to_glib_none().0) }
    }

    /// Removes an offset marker from a [`LevelBar`][crate::LevelBar].
    ///
    /// The marker must have been previously added with
    /// [``add_offset_value()``][`Self::add_offset_value()`].
    /// ## `name`
    /// the name of an offset in the bar
    #[doc(alias = "gtk_level_bar_remove_offset_value")]
    pub fn remove_offset_value(&self, name: Option<&str>) {
        unsafe {
            ffi::gtk_level_bar_remove_offset_value(self.to_glib_none().0, name.to_glib_none().0);
        }
    }

    /// Sets whether the [`LevelBar`][crate::LevelBar] is inverted.
    /// ## `inverted`
    /// [`true`] to invert the level bar
    #[doc(alias = "gtk_level_bar_set_inverted")]
    pub fn set_inverted(&self, inverted: bool) {
        unsafe {
            ffi::gtk_level_bar_set_inverted(self.to_glib_none().0, inverted.into_glib());
        }
    }

    /// Sets the `max-value` of the [`LevelBar`][crate::LevelBar].
    ///
    /// You probably want to update preexisting level offsets after calling
    /// this function.
    /// ## `value`
    /// a positive value
    #[doc(alias = "gtk_level_bar_set_max_value")]
    pub fn set_max_value(&self, value: f64) {
        unsafe {
            ffi::gtk_level_bar_set_max_value(self.to_glib_none().0, value);
        }
    }

    /// Sets the `min-value` of the [`LevelBar`][crate::LevelBar].
    ///
    /// You probably want to update preexisting level offsets after calling
    /// this function.
    /// ## `value`
    /// a positive value
    #[doc(alias = "gtk_level_bar_set_min_value")]
    pub fn set_min_value(&self, value: f64) {
        unsafe {
            ffi::gtk_level_bar_set_min_value(self.to_glib_none().0, value);
        }
    }

    /// Sets the `mode` of the [`LevelBar`][crate::LevelBar].
    /// ## `mode`
    /// a [`LevelBarMode`][crate::LevelBarMode]
    #[doc(alias = "gtk_level_bar_set_mode")]
    pub fn set_mode(&self, mode: LevelBarMode) {
        unsafe {
            ffi::gtk_level_bar_set_mode(self.to_glib_none().0, mode.into_glib());
        }
    }

    /// Sets the value of the [`LevelBar`][crate::LevelBar].
    /// ## `value`
    /// a value in the interval between
    ///  `property::LevelBar::min-value` and `property::LevelBar::max-value`
    #[doc(alias = "gtk_level_bar_set_value")]
    pub fn set_value(&self, value: f64) {
        unsafe {
            ffi::gtk_level_bar_set_value(self.to_glib_none().0, value);
        }
    }

    /// Emitted when an offset specified on the bar changes value.
    ///
    /// This typically is the result of a [``add_offset_value()``][`Self::add_offset_value()`]
    /// call.
    ///
    /// The signal supports detailed connections; you can connect to the
    /// detailed signal "changed::x" in order to only receive callbacks when
    /// the value of offset "x" changes.
    /// ## `name`
    /// the name of the offset that changed value
    #[doc(alias = "offset-changed")]
    pub fn connect_offset_changed<F: Fn(&Self, &str) + 'static>(
        &self,
        detail: Option<&str>,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn offset_changed_trampoline<F: Fn(&LevelBar, &str) + 'static>(
            this: *mut ffi::GtkLevelBar,
            name: *mut libc::c_char,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                &from_glib_borrow(this),
                &glib::GString::from_glib_borrow(name),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            let detailed_signal_name = detail.map(|name| format!("offset-changed::{}\0", name));
            let signal_name: &[u8] = detailed_signal_name
                .as_ref()
                .map_or(&b"offset-changed\0"[..], |n| n.as_bytes());
            connect_raw(
                self.as_ptr() as *mut _,
                signal_name.as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    offset_changed_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "inverted")]
    pub fn connect_inverted_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_inverted_trampoline<F: Fn(&LevelBar) + 'static>(
            this: *mut ffi::GtkLevelBar,
            _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::inverted\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_inverted_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-value")]
    pub fn connect_max_value_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_value_trampoline<F: Fn(&LevelBar) + 'static>(
            this: *mut ffi::GtkLevelBar,
            _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-value\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_max_value_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "min-value")]
    pub fn connect_min_value_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_min_value_trampoline<F: Fn(&LevelBar) + 'static>(
            this: *mut ffi::GtkLevelBar,
            _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::min-value\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_min_value_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "mode")]
    pub fn connect_mode_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_mode_trampoline<F: Fn(&LevelBar) + 'static>(
            this: *mut ffi::GtkLevelBar,
            _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::mode\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_mode_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "value")]
    pub fn connect_value_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_value_trampoline<F: Fn(&LevelBar) + 'static>(
            this: *mut ffi::GtkLevelBar,
            _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::value\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_value_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`LevelBar`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
pub struct LevelBarBuilder {
    inverted: Option<bool>,
    max_value: Option<f64>,
    min_value: Option<f64>,
    mode: Option<LevelBarMode>,
    value: Option<f64>,
    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>,
    orientation: Option<Orientation>,
}

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

    // rustdoc-stripper-ignore-next
    /// Build the [`LevelBar`].
    pub fn build(self) -> LevelBar {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref inverted) = self.inverted {
            properties.push(("inverted", inverted));
        }
        if let Some(ref max_value) = self.max_value {
            properties.push(("max-value", max_value));
        }
        if let Some(ref min_value) = self.min_value {
            properties.push(("min-value", min_value));
        }
        if let Some(ref mode) = self.mode {
            properties.push(("mode", mode));
        }
        if let Some(ref value) = self.value {
            properties.push(("value", value));
        }
        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 orientation) = self.orientation {
            properties.push(("orientation", orientation));
        }
        glib::Object::new::<LevelBar>(&properties)
            .expect("Failed to create an instance of LevelBar")
    }

    /// Whether the `GtkLeveBar` is inverted.
    ///
    /// Level bars normally grow from top to bottom or left to right.
    /// Inverted level bars grow in the opposite direction.
    pub fn inverted(mut self, inverted: bool) -> Self {
        self.inverted = Some(inverted);
        self
    }

    /// Determines the maximum value of the interval that can be displayed by the bar.
    pub fn max_value(mut self, max_value: f64) -> Self {
        self.max_value = Some(max_value);
        self
    }

    /// Determines the minimum value of the interval that can be displayed by the bar.
    pub fn min_value(mut self, min_value: f64) -> Self {
        self.min_value = Some(min_value);
        self
    }

    /// Determines the way [`LevelBar`][crate::LevelBar] interprets the value properties to draw the
    /// level fill area.
    ///
    /// Specifically, when the value is [`LevelBarMode::Continuous`][crate::LevelBarMode::Continuous],
    /// [`LevelBar`][crate::LevelBar] will draw a single block representing the current value in
    /// that area; when the value is [`LevelBarMode::Discrete`][crate::LevelBarMode::Discrete],
    /// the widget will draw a succession of separate blocks filling the
    /// draw area, with the number of blocks being equal to the units separating
    /// the integral roundings of `property::LevelBar::min-value` and
    /// `property::LevelBar::max-value`.
    pub fn mode(mut self, mode: LevelBarMode) -> Self {
        self.mode = Some(mode);
        self
    }

    /// Determines the currently filled value of the level bar.
    pub fn value(mut self, value: f64) -> Self {
        self.value = Some(value);
        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
    }

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

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