// 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::Align;
use crate::Bin;
use crate::Buildable;
use crate::CellArea;
use crate::CellEditable;
use crate::CellLayout;
use crate::Container;
use crate::ResizeMode;
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! {
    /// A GtkComboBox is a widget that allows the user to choose from a list of
    /// valid choices. The GtkComboBox displays the selected choice. When
    /// activated, the GtkComboBox displays a popup which allows the user to
    /// make a new choice. The style in which the selected value is displayed,
    /// and the style of the popup is determined by the current theme. It may
    /// be similar to a Windows-style combo box.
    ///
    /// The GtkComboBox 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 GtkComboBox 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 “has-entry”
    /// property allows the GtkComboBox to contain a [`Entry`][crate::Entry]. This entry
    /// can be accessed by calling [`BinExt::child()`][crate::prelude::BinExt::child()] on the combo box.
    ///
    /// For a simple list of textual choices, the model-view API of GtkComboBox
    /// can be a bit overwhelming. In this case, [`ComboBoxText`][crate::ComboBoxText] offers a
    /// simple alternative. Both GtkComboBox and [`ComboBoxText`][crate::ComboBoxText] can contain
    /// an entry.
    ///
    /// # CSS nodes
    ///
    ///
    ///
    /// **⚠️ The following code is in plain ⚠️**
    ///
    /// ```plain
    /// 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.
    ///
    ///
    ///
    /// **⚠️ The following code is in plain ⚠️**
    ///
    /// ```plain
    /// combobox
    /// ├── box.linked
    /// │   ├── entry.combo
    /// │   ╰── button.combo
    /// │       ╰── box
    /// │           ╰── arrow
    /// ╰── window.popup
    /// ```
    ///
    /// A GtkComboBox 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.
    ///
    /// # Implements
    ///
    /// [`ComboBoxExt`][trait@crate::prelude::ComboBoxExt], [`BinExt`][trait@crate::prelude::BinExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`CellEditableExt`][trait@crate::prelude::CellEditableExt], [`CellLayoutExt`][trait@crate::prelude::CellLayoutExt], [`ComboBoxExtManual`][trait@crate::prelude::ComboBoxExtManual], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkComboBox")]
    pub struct ComboBox(Object<ffi::GtkComboBox, ffi::GtkComboBoxClass>) @extends Bin, Container, Widget, @implements Buildable, CellEditable, CellLayout;

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

impl ComboBox {
    /// Creates a new empty [`ComboBox`][crate::ComboBox].
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox].
    #[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] using `area` to layout cells.
    /// ## `area`
    /// the [`CellArea`][crate::CellArea] to use to layout cell renderers
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox].
    #[doc(alias = "gtk_combo_box_new_with_area")]
    #[doc(alias = "new_with_area")]
    pub fn with_area<P: IsA<CellArea>>(area: &P) -> ComboBox {
        skip_assert_initialized!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_combo_box_new_with_area(
                area.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new empty [`ComboBox`][crate::ComboBox] with an entry.
    ///
    /// The new combo box will use `area` to layout cells.
    /// ## `area`
    /// the [`CellArea`][crate::CellArea] to use to layout cell renderers
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox].
    #[doc(alias = "gtk_combo_box_new_with_area_and_entry")]
    #[doc(alias = "new_with_area_and_entry")]
    pub fn with_area_and_entry<P: IsA<CellArea>>(area: &P) -> ComboBox {
        skip_assert_initialized!();
        unsafe {
            Widget::from_glib_none(ffi::gtk_combo_box_new_with_area_and_entry(
                area.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

    /// Creates a new empty [`ComboBox`][crate::ComboBox] with an entry.
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox].
    #[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 the model initialized to `model`.
    /// ## `model`
    /// A [`TreeModel`][crate::TreeModel].
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox].
    #[doc(alias = "gtk_combo_box_new_with_model")]
    #[doc(alias = "new_with_model")]
    pub fn with_model<P: IsA<TreeModel>>(model: &P) -> 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 with the model initialized to `model`.
    /// ## `model`
    /// A [`TreeModel`][crate::TreeModel]
    ///
    /// # Returns
    ///
    /// A new [`ComboBox`][crate::ComboBox]
    #[doc(alias = "gtk_combo_box_new_with_model_and_entry")]
    #[doc(alias = "new_with_model_and_entry")]
    pub fn with_model_and_entry<P: IsA<TreeModel>>(model: &P) -> 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`] 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
pub struct ComboBoxBuilder {
    active: Option<i32>,
    active_id: Option<String>,
    button_sensitivity: Option<SensitivityType>,
    cell_area: Option<CellArea>,
    column_span_column: Option<i32>,
    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>,
    row_span_column: Option<i32>,
    wrap_width: Option<i32>,
    border_width: Option<u32>,
    child: Option<Widget>,
    resize_mode: Option<ResizeMode>,
    app_paintable: Option<bool>,
    can_default: Option<bool>,
    can_focus: Option<bool>,
    events: Option<gdk::EventMask>,
    expand: Option<bool>,
    #[cfg(any(feature = "v3_20", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v3_20")))]
    focus_on_click: Option<bool>,
    halign: Option<Align>,
    has_default: Option<bool>,
    has_focus: Option<bool>,
    has_tooltip: Option<bool>,
    height_request: Option<i32>,
    hexpand: Option<bool>,
    hexpand_set: Option<bool>,
    is_focus: Option<bool>,
    margin: Option<i32>,
    margin_bottom: Option<i32>,
    margin_end: Option<i32>,
    margin_start: Option<i32>,
    margin_top: Option<i32>,
    name: Option<String>,
    no_show_all: Option<bool>,
    opacity: Option<f64>,
    parent: Option<Container>,
    receives_default: Option<bool>,
    sensitive: Option<bool>,
    tooltip_markup: Option<String>,
    tooltip_text: Option<String>,
    valign: Option<Align>,
    vexpand: Option<bool>,
    vexpand_set: Option<bool>,
    visible: Option<bool>,
    width_request: Option<i32>,
    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`].
    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 cell_area) = self.cell_area {
            properties.push(("cell-area", cell_area));
        }
        if let Some(ref column_span_column) = self.column_span_column {
            properties.push(("column-span-column", column_span_column));
        }
        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 row_span_column) = self.row_span_column {
            properties.push(("row-span-column", row_span_column));
        }
        if let Some(ref wrap_width) = self.wrap_width {
            properties.push(("wrap-width", wrap_width));
        }
        if let Some(ref border_width) = self.border_width {
            properties.push(("border-width", border_width));
        }
        if let Some(ref child) = self.child {
            properties.push(("child", child));
        }
        if let Some(ref resize_mode) = self.resize_mode {
            properties.push(("resize-mode", resize_mode));
        }
        if let Some(ref app_paintable) = self.app_paintable {
            properties.push(("app-paintable", app_paintable));
        }
        if let Some(ref can_default) = self.can_default {
            properties.push(("can-default", can_default));
        }
        if let Some(ref can_focus) = self.can_focus {
            properties.push(("can-focus", can_focus));
        }
        if let Some(ref events) = self.events {
            properties.push(("events", events));
        }
        if let Some(ref expand) = self.expand {
            properties.push(("expand", expand));
        }
        #[cfg(any(feature = "v3_20", feature = "dox"))]
        if let Some(ref focus_on_click) = self.focus_on_click {
            properties.push(("focus-on-click", focus_on_click));
        }
        if let Some(ref halign) = self.halign {
            properties.push(("halign", halign));
        }
        if let Some(ref has_default) = self.has_default {
            properties.push(("has-default", has_default));
        }
        if let Some(ref has_focus) = self.has_focus {
            properties.push(("has-focus", has_focus));
        }
        if let Some(ref has_tooltip) = self.has_tooltip {
            properties.push(("has-tooltip", has_tooltip));
        }
        if let Some(ref height_request) = self.height_request {
            properties.push(("height-request", height_request));
        }
        if let Some(ref hexpand) = self.hexpand {
            properties.push(("hexpand", hexpand));
        }
        if let Some(ref hexpand_set) = self.hexpand_set {
            properties.push(("hexpand-set", hexpand_set));
        }
        if let Some(ref is_focus) = self.is_focus {
            properties.push(("is-focus", is_focus));
        }
        if let Some(ref margin) = self.margin {
            properties.push(("margin", margin));
        }
        if let Some(ref margin_bottom) = self.margin_bottom {
            properties.push(("margin-bottom", margin_bottom));
        }
        if let Some(ref margin_end) = self.margin_end {
            properties.push(("margin-end", margin_end));
        }
        if let Some(ref margin_start) = self.margin_start {
            properties.push(("margin-start", margin_start));
        }
        if let Some(ref margin_top) = self.margin_top {
            properties.push(("margin-top", margin_top));
        }
        if let Some(ref name) = self.name {
            properties.push(("name", name));
        }
        if let Some(ref no_show_all) = self.no_show_all {
            properties.push(("no-show-all", no_show_all));
        }
        if let Some(ref opacity) = self.opacity {
            properties.push(("opacity", opacity));
        }
        if let Some(ref parent) = self.parent {
            properties.push(("parent", parent));
        }
        if let Some(ref receives_default) = self.receives_default {
            properties.push(("receives-default", receives_default));
        }
        if let Some(ref sensitive) = self.sensitive {
            properties.push(("sensitive", sensitive));
        }
        if let Some(ref tooltip_markup) = self.tooltip_markup {
            properties.push(("tooltip-markup", tooltip_markup));
        }
        if let Some(ref tooltip_text) = self.tooltip_text {
            properties.push(("tooltip-text", tooltip_text));
        }
        if let Some(ref valign) = self.valign {
            properties.push(("valign", valign));
        }
        if let Some(ref vexpand) = self.vexpand {
            properties.push(("vexpand", vexpand));
        }
        if let Some(ref vexpand_set) = self.vexpand_set {
            properties.push(("vexpand-set", vexpand_set));
        }
        if let Some(ref visible) = self.visible {
            properties.push(("visible", visible));
        }
        if let Some(ref width_request) = self.width_request {
            properties.push(("width-request", width_request));
        }
        if let Some(ref editing_canceled) = self.editing_canceled {
            properties.push(("editing-canceled", editing_canceled));
        }
        glib::Object::new::<ComboBox>(&properties)
            .expect("Failed to create an instance of ComboBox")
    }

    /// 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 [`CellArea`][crate::CellArea] used to layout cell renderers for this combo box.
    ///
    /// If no area is specified when creating the combo box with [`ComboBox::with_area()`][crate::ComboBox::with_area()]
    /// a horizontally oriented [`CellAreaBox`][crate::CellAreaBox] will be used.
    pub fn cell_area<P: IsA<CellArea>>(mut self, cell_area: &P) -> Self {
        self.cell_area = Some(cell_area.clone().upcast());
        self
    }

    /// If this is set to a non-negative value, it must be the index of a column
    /// of type `G_TYPE_INT` in the model. The value in that column for each item
    /// will determine how many columns that item will span in the popup.
    /// Therefore, values in this column must be greater than zero, and the sum of
    /// an item’s column position + span should not exceed `property::ComboBox::wrap-width`.
    pub fn column_span_column(mut self, column_span_column: i32) -> Self {
        self.column_span_column = Some(column_span_column);
        self
    }

    /// The column in the combo box's model to associate with strings from the entry
    /// if the combo was created with `property::ComboBox::has-entry` = [`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 column in the combo box's model 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 the values shown
    /// in the list.
    pub fn model<P: IsA<TreeModel>>(mut self, model: &P) -> 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
    }

    /// If this is set to a non-negative value, it must be the index of a column
    /// of type `G_TYPE_INT` in the model. The value in that column for each item
    /// will determine how many rows that item will span in the popup. Therefore,
    /// values in this column must be greater than zero.
    pub fn row_span_column(mut self, row_span_column: i32) -> Self {
        self.row_span_column = Some(row_span_column);
        self
    }

    /// If wrap-width is set to a positive value, items in the popup will be laid
    /// out along multiple columns, starting a new row on reaching the wrap width.
    pub fn wrap_width(mut self, wrap_width: i32) -> Self {
        self.wrap_width = Some(wrap_width);
        self
    }

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

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

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

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

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

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

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

    /// Whether to expand in both directions. Setting this sets both `property::Widget::hexpand` and `property::Widget::vexpand`
    pub fn expand(mut self, expand: bool) -> Self {
        self.expand = Some(expand);
        self
    }

    /// Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    #[cfg(any(feature = "v3_20", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v3_20")))]
    pub fn focus_on_click(mut self, focus_on_click: bool) -> Self {
        self.focus_on_click = Some(focus_on_click);
        self
    }

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

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

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

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

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

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

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

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

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

    /// Margin on bottom side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_bottom(mut self, margin_bottom: i32) -> Self {
        self.margin_bottom = Some(margin_bottom);
        self
    }

    /// Margin on end of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_end(mut self, margin_end: i32) -> Self {
        self.margin_end = Some(margin_end);
        self
    }

    /// Margin on start of widget, horizontally. This property supports
    /// left-to-right and right-to-left text directions.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_start(mut self, margin_start: i32) -> Self {
        self.margin_start = Some(margin_start);
        self
    }

    /// Margin on top side of widget.
    ///
    /// This property adds margin outside of the widget's normal size
    /// request, the margin will be added in addition to the size from
    /// [`WidgetExt::set_size_request()`][crate::prelude::WidgetExt::set_size_request()] for example.
    pub fn margin_top(mut self, margin_top: i32) -> Self {
        self.margin_top = Some(margin_top);
        self
    }

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

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

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

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

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

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

    /// Sets the text of tooltip to be the given string, which is marked up
    /// with the [Pango text markup language][PangoMarkupFormat].
    /// Also see [`Tooltip::set_markup()`][crate::Tooltip::set_markup()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: `property::Widget::has-tooltip`
    /// will automatically be set to [`true`] and there will be taken care of
    /// `signal::Widget::query-tooltip` in the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and `property::Widget::tooltip-markup`
    /// are set, the last one wins.
    pub fn tooltip_markup(mut self, tooltip_markup: &str) -> Self {
        self.tooltip_markup = Some(tooltip_markup.to_string());
        self
    }

    /// Sets the text of tooltip to be the given string.
    ///
    /// Also see [`Tooltip::set_text()`][crate::Tooltip::set_text()].
    ///
    /// This is a convenience property which will take care of getting the
    /// tooltip shown if the given string is not [`None`]: `property::Widget::has-tooltip`
    /// will automatically be set to [`true`] and there will be taken care of
    /// `signal::Widget::query-tooltip` in the default signal handler.
    ///
    /// Note that if both `property::Widget::tooltip-text` and `property::Widget::tooltip-markup`
    /// are set, the last one wins.
    pub fn tooltip_text(mut self, tooltip_text: &str) -> Self {
        self.tooltip_text = Some(tooltip_text.to_string());
        self
    }

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

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

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

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

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

    /// 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
    }
}

pub const NONE_COMBO_BOX: Option<&ComboBox> = None;

/// Trait containing all [`struct@ComboBox`] methods.
///
/// # Implementors
///
/// [`AppChooserButton`][struct@crate::AppChooserButton], [`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.
    ///
    /// # Returns
    ///
    /// the ID of the active row, or [`None`]
    #[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 any item is active.
    /// Otherwise, `iter` is left unchanged.
    ///
    /// # Returns
    ///
    /// [`true`] if `iter` was set, [`false`] otherwise
    ///
    /// ## `iter`
    /// A [`TreeIter`][crate::TreeIter]
    #[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.
    ///
    /// # 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.
    #[doc(alias = "gtk_combo_box_get_button_sensitivity")]
    #[doc(alias = "get_button_sensitivity")]
    fn button_sensitivity(&self) -> SensitivityType;

    /// Returns the column with column span information for `self`.
    ///
    /// # Returns
    ///
    /// the column span column.
    #[doc(alias = "gtk_combo_box_get_column_span_column")]
    #[doc(alias = "get_column_span_column")]
    fn column_span_column(&self) -> i32;

    /// Returns the column which `self` is using to get the strings
    /// from to display in the internal entry.
    ///
    /// # Returns
    ///
    /// A column in the data source model of `self`.
    #[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 grabs focus when it is clicked
    /// with the mouse. See [`set_focus_on_click()`][Self::set_focus_on_click()].
    ///
    /// # Deprecated since 3.20
    ///
    /// Use [`WidgetExt::gets_focus_on_click()`][crate::prelude::WidgetExt::gets_focus_on_click()] instead
    ///
    /// # Returns
    ///
    /// [`true`] if the combo box grabs focus when it is
    ///  clicked with the mouse.
    #[cfg_attr(feature = "v3_20", deprecated = "Since 3.20")]
    #[cfg(any(not(feature = "v3_20"), feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(not(feature = "v3_20"))))]
    #[doc(alias = "gtk_combo_box_get_focus_on_click")]
    #[doc(alias = "get_focus_on_click")]
    fn gets_focus_on_click(&self) -> bool;

    /// Returns whether the combo box has an entry.
    ///
    /// # Returns
    ///
    /// whether there is an entry in `self`.
    #[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.
    ///
    /// # Returns
    ///
    /// A column in the data source model of `self`.
    #[doc(alias = "gtk_combo_box_get_id_column")]
    #[doc(alias = "get_id_column")]
    fn id_column(&self) -> i32;

    /// Returns the [`TreeModel`][crate::TreeModel] which is acting as data source for `self`.
    ///
    /// # Returns
    ///
    /// A [`TreeModel`][crate::TreeModel] which was passed
    ///  during construction.
    #[doc(alias = "gtk_combo_box_get_model")]
    #[doc(alias = "get_model")]
    fn model(&self) -> Option<TreeModel>;

    /// Gets the accessible object corresponding to the combo box’s popup.
    ///
    /// This function is mostly intended for use by accessibility technologies;
    /// applications should have little use for it.
    ///
    /// # Returns
    ///
    /// the accessible object corresponding
    ///  to the combo box’s popup.
    #[doc(alias = "gtk_combo_box_get_popup_accessible")]
    #[doc(alias = "get_popup_accessible")]
    fn popup_accessible(&self) -> Option<atk::Object>;

    /// Gets whether the popup uses a fixed width matching
    /// the allocated width of the combo box.
    ///
    /// # Returns
    ///
    /// [`true`] if the popup uses a fixed width
    #[doc(alias = "gtk_combo_box_get_popup_fixed_width")]
    #[doc(alias = "get_popup_fixed_width")]
    fn is_popup_fixed_width(&self) -> bool;

    //#[doc(alias = "gtk_combo_box_get_row_separator_func")]
    //#[doc(alias = "get_row_separator_func")]
    //fn row_separator_func(&self) -> Option<Box_<dyn Fn(&TreeModel, &TreeIter) -> bool + 'static>>;

    /// Returns the column with row span information for `self`.
    ///
    /// # Returns
    ///
    /// the row span column.
    #[doc(alias = "gtk_combo_box_get_row_span_column")]
    #[doc(alias = "get_row_span_column")]
    fn row_span_column(&self) -> i32;

    /// Returns the wrap width which is used to determine the number of columns
    /// for the popup menu. If the wrap width is larger than 1, the combo box
    /// is in table mode.
    ///
    /// # Returns
    ///
    /// the wrap width.
    #[doc(alias = "gtk_combo_box_get_wrap_width")]
    #[doc(alias = "get_wrap_width")]
    fn wrap_width(&self) -> i32;

    /// 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.
    #[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.
    #[doc(alias = "gtk_combo_box_popup")]
    fn popup(&self);

    /// Pops up the menu or dropdown list of `self`, the popup window
    /// will be grabbed so only `device` and its associated pointer/keyboard
    /// are the only `GdkDevices` able to send events to it.
    /// ## `device`
    /// a [`gdk::Device`][crate::gdk::Device]
    #[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`, or unsets the active row if `active_id` is [`None`]. 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`].
    /// ## `active_id`
    /// the ID of the row to select, or [`None`]
    ///
    /// # 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`].
    #[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`, or
    /// unsets the active item if `iter` is [`None`].
    /// ## `iter`
    /// The [`TreeIter`][crate::TreeIter], or [`None`]
    #[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 be
    /// always sensitive ([`SensitivityType::On`][crate::SensitivityType::On]), never sensitive ([`SensitivityType::Off`][crate::SensitivityType::Off])
    /// or only if there is at least one item to display ([`SensitivityType::Auto`][crate::SensitivityType::Auto]).
    /// ## `sensitivity`
    /// specify the sensitivity of the dropdown button
    #[doc(alias = "gtk_combo_box_set_button_sensitivity")]
    fn set_button_sensitivity(&self, sensitivity: SensitivityType);

    /// Sets the column with column span information for `self` to be
    /// `column_span`. The column span column contains integers which indicate
    /// how many columns an item should span.
    /// ## `column_span`
    /// A column in the model passed during construction
    #[doc(alias = "gtk_combo_box_set_column_span_column")]
    fn set_column_span_column(&self, column_span: i32);

    /// Sets the model column which `self` should use to get strings from
    /// to be `text_column`. 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`].
    /// ## `text_column`
    /// A column in `model` to get the strings from for
    ///  the internal entry
    #[doc(alias = "gtk_combo_box_set_entry_text_column")]
    fn set_entry_text_column(&self, text_column: i32);

    /// Sets whether the combo box will grab focus when it is clicked with
    /// the mouse. Making mouse clicks not grab focus is useful in places
    /// like toolbars where you don’t want the keyboard focus removed from
    /// the main area of the application.
    ///
    /// # Deprecated since 3.20
    ///
    /// Use [`WidgetExt::set_focus_on_click()`][crate::prelude::WidgetExt::set_focus_on_click()] instead
    /// ## `focus_on_click`
    /// whether the combo box grabs focus when clicked
    ///  with the mouse
    #[cfg_attr(feature = "v3_20", deprecated = "Since 3.20")]
    #[cfg(any(not(feature = "v3_20"), feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(not(feature = "v3_20"))))]
    #[doc(alias = "gtk_combo_box_set_focus_on_click")]
    fn set_focus_on_click(&self, focus_on_click: bool);

    /// 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`.
    /// ## `id_column`
    /// A column in `model` to get string IDs for values from
    #[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.
    /// ## `model`
    /// A [`TreeModel`][crate::TreeModel]
    #[doc(alias = "gtk_combo_box_set_model")]
    fn set_model<P: IsA<TreeModel>>(&self, model: Option<&P>);

    /// Specifies whether the popup’s width should be a fixed width
    /// matching the allocated width of the combo box.
    /// ## `fixed`
    /// whether to use a fixed popup width
    #[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.
    /// ## `func`
    /// a `GtkTreeViewRowSeparatorFunc`
    #[doc(alias = "gtk_combo_box_set_row_separator_func")]
    fn set_row_separator_func<P: Fn(&TreeModel, &TreeIter) -> bool + 'static>(&self, func: P);

    /// Sets the column with row span information for `self` to be `row_span`.
    /// The row span column contains integers which indicate how many rows
    /// an item should span.
    /// ## `row_span`
    /// A column in the model passed during construction.
    #[doc(alias = "gtk_combo_box_set_row_span_column")]
    fn set_row_span_column(&self, row_span: i32);

    /// Sets the wrap width of `self` to be `width`. The wrap width is basically
    /// the preferred number of columns when you want the popup to be layed out
    /// in a table.
    /// ## `width`
    /// Preferred number of columns
    #[doc(alias = "gtk_combo_box_set_wrap_width")]
    fn set_wrap_width(&self, width: i32);

    /// The [`CellArea`][crate::CellArea] used to layout cell renderers for this combo box.
    ///
    /// If no area is specified when creating the combo box with [`ComboBox::with_area()`][crate::ComboBox::with_area()]
    /// a horizontally oriented [`CellAreaBox`][crate::CellAreaBox] will be used.
    #[doc(alias = "cell-area")]
    fn cell_area(&self) -> Option<CellArea>;

    /// 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;

    /// The changed signal is 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;

    /// For combo boxes that are created with an entry (See GtkComboBox:has-entry).
    ///
    /// A signal which allows you to change how the text displayed in a combo box's
    /// entry is displayed.
    ///
    /// 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 GtkComboBox::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 gchar*
    /// format_entry_text_callback (GtkComboBox *combo,
    ///                             const gchar *path,
    ///                             gpointer     user_data)
    /// {
    ///   GtkTreeIter iter;
    ///   GtkTreeModel model;
    ///   gdouble      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 GtkTreePath string from the combo box's current model to format text for
    ///
    /// # Returns
    ///
    /// a newly allocated string representing `path`
    /// for the current GtkComboBox model.
    #[doc(alias = "format-entry-text")]
    fn connect_format_entry_text<F: Fn(&Self, &str) -> String + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// The ::move-active signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to move the active selection.
    /// ## `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);

    /// The ::popdown signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to popdown the combo box list.
    ///
    /// 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;

    /// The ::popup signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to popup the combo box list.
    ///
    /// 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 = "column-span-column")]
    fn connect_column_span_column_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;

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

    #[doc(alias = "wrap-width")]
    fn connect_wrap_width_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 column_span_column(&self) -> i32 {
        unsafe { ffi::gtk_combo_box_get_column_span_column(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) }
    }

    #[cfg(any(not(feature = "v3_20"), feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(not(feature = "v3_20"))))]
    fn gets_focus_on_click(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_combo_box_get_focus_on_click(
                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 popup_accessible(&self) -> Option<atk::Object> {
        unsafe {
            from_glib_none(ffi::gtk_combo_box_get_popup_accessible(
                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 row_separator_func(&self) -> Option<Box_<dyn Fn(&TreeModel, &TreeIter) -> bool + 'static>> {
    //    unsafe { TODO: call ffi:gtk_combo_box_get_row_separator_func() }
    //}

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

    fn wrap_width(&self) -> i32 {
        unsafe { ffi::gtk_combo_box_get_wrap_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_column_span_column(&self, column_span: i32) {
        unsafe {
            ffi::gtk_combo_box_set_column_span_column(self.as_ref().to_glib_none().0, column_span);
        }
    }

    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);
        }
    }

    #[cfg(any(not(feature = "v3_20"), feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(not(feature = "v3_20"))))]
    fn set_focus_on_click(&self, focus_on_click: bool) {
        unsafe {
            ffi::gtk_combo_box_set_focus_on_click(
                self.as_ref().to_glib_none().0,
                focus_on_click.into_glib(),
            );
        }
    }

    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<P: IsA<TreeModel>>(&self, model: Option<&P>) {
        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 set_row_span_column(&self, row_span: i32) {
        unsafe {
            ffi::gtk_combo_box_set_row_span_column(self.as_ref().to_glib_none().0, row_span);
        }
    }

    fn set_wrap_width(&self, width: i32) {
        unsafe {
            ffi::gtk_combo_box_set_wrap_width(self.as_ref().to_glib_none().0, width);
        }
    }

    fn cell_area(&self) -> Option<CellArea> {
        unsafe {
            let mut value = glib::Value::from_type(<CellArea as StaticType>::static_type());
            glib::gobject_ffi::g_object_get_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"cell-area\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `cell-area` getter")
        }
    }

    fn has_frame(&self) -> bool {
        unsafe {
            let mut value = glib::Value::from_type(<bool as StaticType>::static_type());
            glib::gobject_ffi::g_object_get_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"has-frame\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `has-frame` getter")
        }
    }

    fn set_has_frame(&self, has_frame: bool) {
        unsafe {
            glib::gobject_ffi::g_object_set_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"has-frame\0".as_ptr() as *const _,
                has_frame.to_value().to_glib_none().0,
            );
        }
    }

    fn is_popup_shown(&self) -> bool {
        unsafe {
            let mut value = glib::Value::from_type(<bool as StaticType>::static_type());
            glib::gobject_ffi::g_object_get_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"popup-shown\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `popup-shown` getter")
        }
    }

    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) {
        let _ = unsafe {
            glib::Object::from_glib_borrow(self.as_ptr() as *mut glib::gobject_ffi::GObject)
                .emit_by_name("move-active", &[&scroll_type])
                .unwrap()
        };
    }

    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 {
        let res = unsafe {
            glib::Object::from_glib_borrow(self.as_ptr() as *mut glib::gobject_ffi::GObject)
                .emit_by_name("popdown", &[])
                .unwrap()
        };
        res.unwrap().get().expect("Return Value for `emit_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) {
        let _ = unsafe {
            glib::Object::from_glib_borrow(self.as_ptr() as *mut glib::gobject_ffi::GObject)
                .emit_by_name("popup", &[])
                .unwrap()
        };
    }

    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_column_span_column_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_column_span_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::column-span-column\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_column_span_column_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),
            )
        }
    }

    fn connect_row_span_column_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_row_span_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::row-span-column\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_row_span_column_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_wrap_width_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_wrap_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::wrap-width\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_wrap_width_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")
    }
}