// 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::Align;
use crate::Buildable;
use crate::CellEditable;
use crate::CellLayout;
use crate::ConstraintTarget;
use crate::LayoutManager;
use crate::Overflow;
use crate::ScrollType;
use crate::SensitivityType;
use crate::TreeIter;
use crate::TreeModel;
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! {
    /// Use [`DropDown`][crate::DropDown] instead
    /// A [`ComboBox`][crate::ComboBox] is a widget that allows the user to choose from a list of
    /// valid choices.
    ///
    /// ![An example GtkComboBox](combo-box.png)
    ///
    /// The [`ComboBox`][crate::ComboBox] displays the selected choice; when activated, the
    /// [`ComboBox`][crate::ComboBox] displays a popup which allows the user to make a new choice.
    ///
    /// The [`ComboBox`][crate::ComboBox] uses the model-view pattern; the list of valid choices
    /// is specified in the form of a tree model, and the display of the choices
    /// can be adapted to the data in the model by using cell renderers, as you
    /// would in a tree view. This is possible since [`ComboBox`][crate::ComboBox] implements the
    /// [`CellLayout`][crate::CellLayout] interface. The tree model holding the valid
    /// choices is not restricted to a flat list, it can be a real tree, and the
    /// popup will reflect the tree structure.
    ///
    /// To allow the user to enter values not in the model, the
    /// `property::ComboBox::has-entry` property allows the [`ComboBox`][crate::ComboBox] to
    /// contain a [`Entry`][crate::Entry]. This entry can be accessed by calling
    /// [`ComboBoxExt::child()`][crate::prelude::ComboBoxExt::child()] on the combo box.
    ///
    /// For a simple list of textual choices, the model-view API of [`ComboBox`][crate::ComboBox]
    /// can be a bit overwhelming. In this case, [`ComboBoxText`][crate::ComboBoxText] offers
    /// a simple alternative. Both [`ComboBox`][crate::ComboBox] and [`ComboBoxText`][crate::ComboBoxText] can contain
    /// an entry.
    ///
    /// ## CSS nodes
    ///
    /// ```text
    /// combobox
    /// ├── box.linked
    /// │   ╰── button.combo
    /// │       ╰── box
    /// │           ├── cellview
    /// │           ╰── arrow
    /// ╰── window.popup
    /// ```
    ///
    /// A normal combobox contains a box with the .linked class, a button
    /// with the .combo class and inside those buttons, there are a cellview and
    /// an arrow.
    ///
    /// ```text
    /// combobox
    /// ├── box.linked
    /// │   ├── entry.combo
    /// │   ╰── button.combo
    /// │       ╰── box
    /// │           ╰── arrow
    /// ╰── window.popup
    /// ```
    ///
    /// A [`ComboBox`][crate::ComboBox] with an entry has a single CSS node with name combobox.
    /// It contains a box with the .linked class. That box contains an entry and
    /// a button, both with the .combo class added. The button also contains another
    /// node with name arrow.
    ///
    /// ## Accessibility
    ///
    /// [`ComboBox`][crate::ComboBox] uses the [`AccessibleRole::ComboBox`][crate::AccessibleRole::ComboBox] role.
    ///
    /// # Implements
    ///
    /// [`ComboBoxExt`][trait@crate::prelude::ComboBoxExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`CellEditableExt`][trait@crate::prelude::CellEditableExt], [`CellLayoutExt`][trait@crate::prelude::CellLayoutExt], [`ComboBoxExtManual`][trait@crate::prelude::ComboBoxExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual], [`CellLayoutExtManual`][trait@crate::prelude::CellLayoutExtManual]
    #[doc(alias = "GtkComboBox")]
    pub struct ComboBox(Object<ffi::GtkComboBox, ffi::GtkComboBoxClass>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, CellEditable, CellLayout;

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

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

    /// Creates a new empty [`ComboBox`][crate::ComboBox].
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_new")]
    pub fn new() -> ComboBox {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_combo_box_new()).unsafe_cast() }
    }

    /// Creates a new empty [`ComboBox`][crate::ComboBox] with an entry.
    ///
    /// In order to use a combo box with entry, you need to tell it
    /// which column of the model contains the text for the entry
    /// by calling [`ComboBoxExt::set_entry_text_column()`][crate::prelude::ComboBoxExt::set_entry_text_column()].
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_new_with_entry")]
    #[doc(alias = "new_with_entry")]
    pub fn with_entry() -> ComboBox {
        assert_initialized_main_thread!();
        unsafe { Widget::from_glib_none(ffi::gtk_combo_box_new_with_entry()).unsafe_cast() }
    }

    /// Creates a new [`ComboBox`][crate::ComboBox] with a model.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `model`
    /// a [`TreeModel`][crate::TreeModel]
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_new_with_model")]
    #[doc(alias = "new_with_model")]
    pub fn with_model(model: &impl IsA<TreeModel>) -> ComboBox {
        skip_assert_initialized!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_combo_box_new_with_model(
                model.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new empty [`ComboBox`][crate::ComboBox] with an entry and a model.
    ///
    /// See also [`with_entry()`][Self::with_entry()].
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `model`
    /// A [`TreeModel`][crate::TreeModel]
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_new_with_model_and_entry")]
    #[doc(alias = "new_with_model_and_entry")]
    pub fn with_model_and_entry(model: &impl IsA<TreeModel>) -> ComboBox {
        skip_assert_initialized!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_combo_box_new_with_model_and_entry(
                model.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

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

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`ComboBox`] 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 ComboBoxBuilder {
    active: Option<i32>,
    active_id: Option<String>,
    button_sensitivity: Option<SensitivityType>,
    child: Option<Widget>,
    entry_text_column: Option<i32>,
    has_entry: Option<bool>,
    has_frame: Option<bool>,
    id_column: Option<i32>,
    model: Option<TreeModel>,
    popup_fixed_width: 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>,
    editing_canceled: Option<bool>,
}

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

    // rustdoc-stripper-ignore-next
    /// Build the [`ComboBox`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> ComboBox {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref active) = self.active {
            properties.push(("active", active));
        }
        if let Some(ref active_id) = self.active_id {
            properties.push(("active-id", active_id));
        }
        if let Some(ref button_sensitivity) = self.button_sensitivity {
            properties.push(("button-sensitivity", button_sensitivity));
        }
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref entry_text_column) = self.entry_text_column {
            properties.push(("entry-text-column", entry_text_column));
        }
        if let Some(ref has_entry) = self.has_entry {
            properties.push(("has-entry", has_entry));
        }
        if let Some(ref has_frame) = self.has_frame {
            properties.push(("has-frame", has_frame));
        }
        if let Some(ref id_column) = self.id_column {
            properties.push(("id-column", id_column));
        }
        if let Some(ref model) = self.model {
            properties.push(("model", model));
        }
        if let Some(ref popup_fixed_width) = self.popup_fixed_width {
            properties.push(("popup-fixed-width", popup_fixed_width));
        }
        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 editing_canceled) = self.editing_canceled {
            properties.push(("editing-canceled", editing_canceled));
        }
        glib::Object::new::<ComboBox>(&properties)
    }

    /// The item which is currently active.
    ///
    /// If the model is a non-flat treemodel, and the active item is not an
    /// immediate child of the root of the tree, this property has the value
    /// `gtk_tree_path_get_indices (path)[0]`, where `path` is the
    /// [`TreePath`][crate::TreePath] of the active item.
    pub fn active(mut self, active: i32) -> Self {
        self.active = Some(active);
        self
    }

    /// The value of the ID column of the active row.
    pub fn active_id(mut self, active_id: &str) -> Self {
        self.active_id = Some(active_id.to_string());
        self
    }

    /// Whether the dropdown button is sensitive when
    /// the model is empty.
    pub fn button_sensitivity(mut self, button_sensitivity: SensitivityType) -> Self {
        self.button_sensitivity = Some(button_sensitivity);
        self
    }

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

    /// The model column to associate with strings from the entry.
    ///
    /// This is property only relevant if the combo was created with
    /// `property::ComboBox::has-entry` is [`true`].
    pub fn entry_text_column(mut self, entry_text_column: i32) -> Self {
        self.entry_text_column = Some(entry_text_column);
        self
    }

    /// Whether the combo box has an entry.
    pub fn has_entry(mut self, has_entry: bool) -> Self {
        self.has_entry = Some(has_entry);
        self
    }

    /// The `has-frame` property controls whether a frame is drawn around the entry.
    pub fn has_frame(mut self, has_frame: bool) -> Self {
        self.has_frame = Some(has_frame);
        self
    }

    /// The model column that provides string IDs for the values
    /// in the model, if != -1.
    pub fn id_column(mut self, id_column: i32) -> Self {
        self.id_column = Some(id_column);
        self
    }

    /// The model from which the combo box takes its values.
    pub fn model(mut self, model: &impl IsA<TreeModel>) -> Self {
        self.model = Some(model.clone().upcast());
        self
    }

    /// Whether the popup's width should be a fixed width matching the
    /// allocated width of the combo box.
    pub fn popup_fixed_width(mut self, popup_fixed_width: bool) -> Self {
        self.popup_fixed_width = Some(popup_fixed_width);
        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
    }

    /// Indicates whether editing on the cell has been canceled.
    pub fn editing_canceled(mut self, editing_canceled: bool) -> Self {
        self.editing_canceled = Some(editing_canceled);
        self
    }
}

/// Trait containing all [`struct@ComboBox`] methods.
///
/// # Implementors
///
/// [`ComboBoxText`][struct@crate::ComboBoxText], [`ComboBox`][struct@crate::ComboBox]
pub trait ComboBoxExt: 'static {
    /// Returns the ID of the active row of @self.
    ///
    /// This value is taken from the active row and the column specified
    /// by the `property::ComboBox::id-column` property of @self
    /// (see [`set_id_column()`][Self::set_id_column()]).
    ///
    /// The returned value is an interned string which means that you can
    /// compare the pointer by value to other interned strings and that you
    /// must not free it.
    ///
    /// If the `property::ComboBox::id-column` property of @self is
    /// not set, or if no row is active, or if the active row has a [`None`]
    /// ID value, then [`None`] is returned.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// the ID of the active row
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_active_id")]
    #[doc(alias = "get_active_id")]
    fn active_id(&self) -> Option<glib::GString>;

    /// Sets @iter to point to the currently active item.
    ///
    /// If no item is active, @iter is left unchanged.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// [`true`] if @iter was set, [`false`] otherwise
    ///
    /// ## `iter`
    /// A [`TreeIter`][crate::TreeIter]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_active_iter")]
    #[doc(alias = "get_active_iter")]
    fn active_iter(&self) -> Option<TreeIter>;

    /// Returns whether the combo box sets the dropdown button
    /// sensitive or not when there are no items in the model.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// [`SensitivityType::On`][crate::SensitivityType::On] if the dropdown button
    ///   is sensitive when the model is empty, [`SensitivityType::Off`][crate::SensitivityType::Off]
    ///   if the button is always insensitive or [`SensitivityType::Auto`][crate::SensitivityType::Auto]
    ///   if it is only sensitive as long as the model has one item to
    ///   be selected.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_button_sensitivity")]
    #[doc(alias = "get_button_sensitivity")]
    fn button_sensitivity(&self) -> SensitivityType;

    /// Gets the child widget of @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// the child widget of @self
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_child")]
    #[doc(alias = "get_child")]
    fn child(&self) -> Option<Widget>;

    /// Returns the column which @self is using to get the strings
    /// from to display in the internal entry.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// A column in the data source model of @self.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_entry_text_column")]
    #[doc(alias = "get_entry_text_column")]
    fn entry_text_column(&self) -> i32;

    /// Returns whether the combo box has an entry.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// whether there is an entry in @self.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_has_entry")]
    #[doc(alias = "get_has_entry")]
    fn has_entry(&self) -> bool;

    /// Returns the column which @self is using to get string IDs
    /// for values from.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// A column in the data source model of @self.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_id_column")]
    #[doc(alias = "get_id_column")]
    fn id_column(&self) -> i32;

    /// Returns the [`TreeModel`][crate::TreeModel] of @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// A [`TreeModel`][crate::TreeModel] which was passed
    ///   during construction.
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_model")]
    #[doc(alias = "get_model")]
    fn model(&self) -> Option<TreeModel>;

    /// Gets whether the popup uses a fixed width.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    ///
    /// # Returns
    ///
    /// [`true`] if the popup uses a fixed width
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_get_popup_fixed_width")]
    #[doc(alias = "get_popup_fixed_width")]
    fn is_popup_fixed_width(&self) -> bool;

    /// Hides the menu or dropdown list of @self.
    ///
    /// This function is mostly intended for use by accessibility technologies;
    /// applications should have little use for it.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_popdown")]
    fn popdown(&self);

    /// Pops up the menu or dropdown list of @self.
    ///
    /// This function is mostly intended for use by accessibility technologies;
    /// applications should have little use for it.
    ///
    /// Before calling this, @self must be mapped, or nothing will happen.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_popup")]
    fn popup(&self);

    /// Pops up the menu of @self.
    ///
    /// Note that currently this does not do anything with the device, as it was
    /// previously only used for list-mode combo boxes, and those were removed
    /// in GTK 4. However, it is retained in case similar functionality is added
    /// back later.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `device`
    /// a [`gdk::Device`][crate::gdk::Device]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_popup_for_device")]
    fn popup_for_device(&self, device: &gdk::Device);

    /// Changes the active row of @self to the one that has an ID equal to
    /// @active_id.
    ///
    /// If @active_id is [`None`], the active row is unset. Rows having
    /// a [`None`] ID string cannot be made active by this function.
    ///
    /// If the `property::ComboBox::id-column` property of @self is
    /// unset or if no row has the given ID then the function does nothing
    /// and returns [`false`].
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `active_id`
    /// the ID of the row to select
    ///
    /// # Returns
    ///
    /// [`true`] if a row with a matching ID was found. If a [`None`]
    ///   @active_id was given to unset the active row, the function
    ///   always returns [`true`].
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_active_id")]
    fn set_active_id(&self, active_id: Option<&str>) -> bool;

    /// Sets the current active item to be the one referenced by @iter.
    ///
    /// If @iter is [`None`], the active item is unset.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `iter`
    /// The [`TreeIter`][crate::TreeIter]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_active_iter")]
    fn set_active_iter(&self, iter: Option<&TreeIter>);

    /// Sets whether the dropdown button of the combo box should update
    /// its sensitivity depending on the model contents.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `sensitivity`
    /// specify the sensitivity of the dropdown button
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_button_sensitivity")]
    fn set_button_sensitivity(&self, sensitivity: SensitivityType);

    /// Sets the child widget of @self.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `child`
    /// the child widget
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_child")]
    fn set_child(&self, child: Option<&impl IsA<Widget>>);

    /// Sets the model column which @self should use to get strings
    /// from to be @text_column.
    ///
    /// For this column no separate
    /// [`CellRenderer`][crate::CellRenderer] is needed.
    ///
    /// The column @text_column in the model of @self must be of
    /// type `G_TYPE_STRING`.
    ///
    /// This is only relevant if @self has been created with
    /// `property::ComboBox::has-entry` as [`true`].
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `text_column`
    /// A column in @model to get the strings from for
    ///   the internal entry
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_entry_text_column")]
    fn set_entry_text_column(&self, text_column: i32);

    /// Sets the model column which @self should use to get string IDs
    /// for values from.
    ///
    /// The column @id_column in the model of @self must be of type
    /// `G_TYPE_STRING`.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `id_column`
    /// A column in @model to get string IDs for values from
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_id_column")]
    fn set_id_column(&self, id_column: i32);

    /// Sets the model used by @self to be @model.
    ///
    /// Will unset a previously set model (if applicable). If model is [`None`],
    /// then it will unset the model.
    ///
    /// Note that this function does not clear the cell renderers, you have to
    /// call [`CellLayoutExt::clear()`][crate::prelude::CellLayoutExt::clear()] yourself if you need to set up different
    /// cell renderers for the new model.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `model`
    /// A [`TreeModel`][crate::TreeModel]
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_model")]
    fn set_model(&self, model: Option<&impl IsA<TreeModel>>);

    /// Specifies whether the popup’s width should be a fixed width.
    ///
    /// If @fixed is [`true`], the popup's width is set to match the
    /// allocated width of the combo box.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `fixed`
    /// whether to use a fixed popup width
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_popup_fixed_width")]
    fn set_popup_fixed_width(&self, fixed: bool);

    /// Sets the row separator function, which is used to determine
    /// whether a row should be drawn as a separator.
    ///
    /// If the row separator function is [`None`], no separators are drawn.
    /// This is the default value.
    ///
    /// # Deprecated since 4.10
    ///
    /// Use [`DropDown`][crate::DropDown]
    /// ## `func`
    /// a `GtkTreeViewRowSeparatorFunc`
    #[cfg_attr(feature = "v4_10", deprecated = "Since 4.10")]
    #[doc(alias = "gtk_combo_box_set_row_separator_func")]
    fn set_row_separator_func<P: Fn(&TreeModel, &TreeIter) -> bool + 'static>(&self, func: P);

    /// The `has-frame` property controls whether a frame is drawn around the entry.
    #[doc(alias = "has-frame")]
    fn has_frame(&self) -> bool;

    /// The `has-frame` property controls whether a frame is drawn around the entry.
    #[doc(alias = "has-frame")]
    fn set_has_frame(&self, has_frame: bool);

    /// Whether the combo boxes dropdown is popped up.
    ///
    /// Note that this property is mainly useful, because
    /// it allows you to connect to notify::popup-shown.
    #[doc(alias = "popup-shown")]
    fn is_popup_shown(&self) -> bool;

    /// Emitted to when the combo box is activated.
    ///
    /// The `::activate` signal on [`ComboBox`][crate::ComboBox] is an action signal and
    /// emitting it causes the combo box to pop up its dropdown.
    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    #[doc(alias = "activate")]
    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    fn emit_activate(&self);

    /// Emitted when the active item is changed.
    ///
    /// The can be due to the user selecting a different item from the list,
    /// or due to a call to [`set_active_iter()`][Self::set_active_iter()]. It will
    /// also be emitted while typing into the entry of a combo box with an entry.
    #[doc(alias = "changed")]
    fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// Emitted to allow changing how the text in a combo box's entry is displayed.
    ///
    /// See `property::ComboBox::has-entry`.
    ///
    /// Connect a signal handler which returns an allocated string representing
    /// @path. That string will then be used to set the text in the combo box's
    /// entry. The default signal handler uses the text from the
    /// `property::ComboBox::entry-text-column` model column.
    ///
    /// Here's an example signal handler which fetches data from the model and
    /// displays it in the entry.
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    /// static char *
    /// format_entry_text_callback (GtkComboBox *combo,
    ///                             const char *path,
    ///                             gpointer     user_data)
    /// {
    ///   GtkTreeIter iter;
    ///   GtkTreeModel model;
    ///   double       value;
    ///
    ///   model = gtk_combo_box_get_model (combo);
    ///
    ///   gtk_tree_model_get_iter_from_string (model, &iter, path);
    ///   gtk_tree_model_get (model, &iter,
    ///                       THE_DOUBLE_VALUE_COLUMN, &value,
    ///                       -1);
    ///
    ///   return g_strdup_printf ("%g", value);
    /// }
    /// ```
    /// ## `path`
    /// the [`TreePath`][crate::TreePath] string from the combo box's current model
    ///   to format text for
    ///
    /// # Returns
    ///
    /// a newly allocated string representing @path
    ///   for the current [`ComboBox`][crate::ComboBox] model.
    #[doc(alias = "format-entry-text")]
    fn connect_format_entry_text<F: Fn(&Self, &str) -> String + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// Emitted to move the active selection.
    ///
    /// This is an [keybinding signal](class.SignalAction.html).
    /// ## `scroll_type`
    /// a [`ScrollType`][crate::ScrollType]
    #[doc(alias = "move-active")]
    fn connect_move_active<F: Fn(&Self, ScrollType) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_move_active(&self, scroll_type: ScrollType);

    /// Emitted to popdown the combo box list.
    ///
    /// This is an [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal are Alt+Up and Escape.
    #[doc(alias = "popdown")]
    fn connect_popdown<F: Fn(&Self) -> bool + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_popdown(&self) -> bool;

    /// Emitted to popup the combo box list.
    ///
    /// This is an [keybinding signal](class.SignalAction.html).
    ///
    /// The default binding for this signal is Alt+Down.
    #[doc(alias = "popup")]
    fn connect_popup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn emit_popup(&self);

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

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

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

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

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

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

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

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

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

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

impl<O: IsA<ComboBox>> ComboBoxExt for O {
    fn active_id(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gtk_combo_box_get_active_id(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn active_iter(&self) -> Option<TreeIter> {
        unsafe {
            let mut iter = TreeIter::uninitialized();
            let ret = from_glib(ffi::gtk_combo_box_get_active_iter(
                self.as_ref().to_glib_none().0,
                iter.to_glib_none_mut().0,
            ));
            if ret {
                Some(iter)
            } else {
                None
            }
        }
    }

    fn button_sensitivity(&self) -> SensitivityType {
        unsafe {
            from_glib(ffi::gtk_combo_box_get_button_sensitivity(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

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

    fn entry_text_column(&self) -> i32 {
        unsafe { ffi::gtk_combo_box_get_entry_text_column(self.as_ref().to_glib_none().0) }
    }

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

    fn id_column(&self) -> i32 {
        unsafe { ffi::gtk_combo_box_get_id_column(self.as_ref().to_glib_none().0) }
    }

    fn model(&self) -> Option<TreeModel> {
        unsafe { from_glib_none(ffi::gtk_combo_box_get_model(self.as_ref().to_glib_none().0)) }
    }

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

    fn popdown(&self) {
        unsafe {
            ffi::gtk_combo_box_popdown(self.as_ref().to_glib_none().0);
        }
    }

    fn popup(&self) {
        unsafe {
            ffi::gtk_combo_box_popup(self.as_ref().to_glib_none().0);
        }
    }

    fn popup_for_device(&self, device: &gdk::Device) {
        unsafe {
            ffi::gtk_combo_box_popup_for_device(
                self.as_ref().to_glib_none().0,
                device.to_glib_none().0,
            );
        }
    }

    fn set_active_id(&self, active_id: Option<&str>) -> bool {
        unsafe {
            from_glib(ffi::gtk_combo_box_set_active_id(
                self.as_ref().to_glib_none().0,
                active_id.to_glib_none().0,
            ))
        }
    }

    fn set_active_iter(&self, iter: Option<&TreeIter>) {
        unsafe {
            ffi::gtk_combo_box_set_active_iter(
                self.as_ref().to_glib_none().0,
                mut_override(iter.to_glib_none().0),
            );
        }
    }

    fn set_button_sensitivity(&self, sensitivity: SensitivityType) {
        unsafe {
            ffi::gtk_combo_box_set_button_sensitivity(
                self.as_ref().to_glib_none().0,
                sensitivity.into_glib(),
            );
        }
    }

    fn set_child(&self, child: Option<&impl IsA<Widget>>) {
        unsafe {
            ffi::gtk_combo_box_set_child(
                self.as_ref().to_glib_none().0,
                child.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_entry_text_column(&self, text_column: i32) {
        unsafe {
            ffi::gtk_combo_box_set_entry_text_column(self.as_ref().to_glib_none().0, text_column);
        }
    }

    fn set_id_column(&self, id_column: i32) {
        unsafe {
            ffi::gtk_combo_box_set_id_column(self.as_ref().to_glib_none().0, id_column);
        }
    }

    fn set_model(&self, model: Option<&impl IsA<TreeModel>>) {
        unsafe {
            ffi::gtk_combo_box_set_model(
                self.as_ref().to_glib_none().0,
                model.map(|p| p.as_ref()).to_glib_none().0,
            );
        }
    }

    fn set_popup_fixed_width(&self, fixed: bool) {
        unsafe {
            ffi::gtk_combo_box_set_popup_fixed_width(
                self.as_ref().to_glib_none().0,
                fixed.into_glib(),
            );
        }
    }

    fn set_row_separator_func<P: Fn(&TreeModel, &TreeIter) -> bool + 'static>(&self, func: P) {
        let func_data: Box_<P> = Box_::new(func);
        unsafe extern "C" fn func_func<P: Fn(&TreeModel, &TreeIter) -> bool + 'static>(
            model: *mut ffi::GtkTreeModel,
            iter: *mut ffi::GtkTreeIter,
            data: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let model = from_glib_borrow(model);
            let iter = from_glib_borrow(iter);
            let callback: &P = &*(data as *mut _);
            let res = (*callback)(&model, &iter);
            res.into_glib()
        }
        let func = Some(func_func::<P> as _);
        unsafe extern "C" fn destroy_func<P: Fn(&TreeModel, &TreeIter) -> bool + 'static>(
            data: glib::ffi::gpointer,
        ) {
            let _callback: Box_<P> = Box_::from_raw(data as *mut _);
        }
        let destroy_call3 = Some(destroy_func::<P> as _);
        let super_callback0: Box_<P> = func_data;
        unsafe {
            ffi::gtk_combo_box_set_row_separator_func(
                self.as_ref().to_glib_none().0,
                func,
                Box_::into_raw(super_callback0) as *mut _,
                destroy_call3,
            );
        }
    }

    fn has_frame(&self) -> bool {
        glib::ObjectExt::property(self.as_ref(), "has-frame")
    }

    fn set_has_frame(&self, has_frame: bool) {
        glib::ObjectExt::set_property(self.as_ref(), "has-frame", &has_frame)
    }

    fn is_popup_shown(&self) -> bool {
        glib::ObjectExt::property(self.as_ref(), "popup-shown")
    }

    #[cfg(any(feature = "v4_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_trampoline<P: IsA<ComboBox>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkComboBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::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_6", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v4_6")))]
    fn emit_activate(&self) {
        self.emit_by_name::<()>("activate", &[]);
    }

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

    fn connect_format_entry_text<F: Fn(&Self, &str) -> String + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn format_entry_text_trampoline<
            P: IsA<ComboBox>,
            F: Fn(&P, &str) -> String + 'static,
        >(
            this: *mut ffi::GtkComboBox,
            path: *mut libc::c_char,
            f: glib::ffi::gpointer,
        ) -> *mut libc::c_char {
            let f: &F = &*(f as *const F);
            f(
                ComboBox::from_glib_borrow(this).unsafe_cast_ref(),
                &glib::GString::from_glib_borrow(path),
            )
            .to_glib_full()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"format-entry-text\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    format_entry_text_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_move_active<F: Fn(&Self, ScrollType) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn move_active_trampoline<
            P: IsA<ComboBox>,
            F: Fn(&P, ScrollType) + 'static,
        >(
            this: *mut ffi::GtkComboBox,
            scroll_type: ffi::GtkScrollType,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                ComboBox::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(scroll_type),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-active\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_active_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_active(&self, scroll_type: ScrollType) {
        self.emit_by_name::<()>("move-active", &[&scroll_type]);
    }

    fn connect_popdown<F: Fn(&Self) -> bool + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn popdown_trampoline<P: IsA<ComboBox>, F: Fn(&P) -> bool + 'static>(
            this: *mut ffi::GtkComboBox,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(ComboBox::from_glib_borrow(this).unsafe_cast_ref()).into_glib()
        }
        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) -> bool {
        self.emit_by_name("popdown", &[])
    }

    fn connect_popup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn popup_trampoline<P: IsA<ComboBox>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkComboBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::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_active_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_active_trampoline<P: IsA<ComboBox>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkComboBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::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),
            )
        }
    }

    fn connect_active_id_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_active_id_trampoline<P: IsA<ComboBox>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkComboBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::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-id\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_active_id_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

    fn connect_child_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_child_trampoline<P: IsA<ComboBox>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkComboBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::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_entry_text_column_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_entry_text_column_trampoline<
            P: IsA<ComboBox>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkComboBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(ComboBox::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::entry-text-column\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_entry_text_column_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

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

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

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

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

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

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