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// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::{
    Accessible, AccessibleRole, Adjustment, Align, Buildable, ConstraintTarget, FlowBoxChild,
    LayoutManager, MovementStep, Orientable, Orientation, Overflow, SelectionMode, Widget,
};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::boxed::Box as Box_;

glib::wrapper! {
    /// A [`FlowBox`][crate::FlowBox] puts child widgets in reflowing grid.
    ///
    /// For instance, with the horizontal orientation, the widgets will be
    /// arranged from left to right, starting a new row under the previous
    /// row when necessary. Reducing the width in this case will require more
    /// rows, so a larger height will be requested.
    ///
    /// Likewise, with the vertical orientation, the widgets will be arranged
    /// from top to bottom, starting a new column to the right when necessary.
    /// Reducing the height will require more columns, so a larger width will
    /// be requested.
    ///
    /// The size request of a [`FlowBox`][crate::FlowBox] alone may not be what you expect;
    /// if you need to be able to shrink it along both axes and dynamically
    /// reflow its children, you may have to wrap it in a [`ScrolledWindow`][crate::ScrolledWindow]
    /// to enable that.
    ///
    /// The children of a [`FlowBox`][crate::FlowBox] can be dynamically sorted and filtered.
    ///
    /// Although a [`FlowBox`][crate::FlowBox] must have only [`FlowBoxChild`][crate::FlowBoxChild] children, you
    /// can add any kind of widget to it via [`insert()`][Self::insert()], and a
    /// [`FlowBoxChild`][crate::FlowBoxChild] widget will automatically be inserted between the box
    /// and the widget.
    ///
    /// Also see [`ListBox`][crate::ListBox].
    ///
    /// # CSS nodes
    ///
    /// ```text
    /// flowbox
    /// ├── flowboxchild
    /// │   ╰── <child>
    /// ├── flowboxchild
    /// │   ╰── <child>
    /// ┊
    /// ╰── [rubberband]
    /// ```
    ///
    /// [`FlowBox`][crate::FlowBox] uses a single CSS node with name flowbox. [`FlowBoxChild`][crate::FlowBoxChild]
    /// uses a single CSS node with name flowboxchild. For rubberband selection,
    /// a subnode with name rubberband is used.
    ///
    /// # Accessibility
    ///
    /// [`FlowBox`][crate::FlowBox] uses the [`AccessibleRole::Grid`][crate::AccessibleRole::Grid] role, and [`FlowBoxChild`][crate::FlowBoxChild]
    /// uses the [`AccessibleRole::GridCell`][crate::AccessibleRole::GridCell] role.
    ///
    /// ## Properties
    ///
    ///
    /// #### `accept-unpaired-release`
    ///  Readable | Writeable
    ///
    ///
    /// #### `activate-on-single-click`
    ///  Determines whether children can be activated with a single
    /// click, or require a double-click.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `column-spacing`
    ///  The amount of horizontal space between two children.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `homogeneous`
    ///  Determines whether all children should be allocated the
    /// same size.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `max-children-per-line`
    ///  The maximum amount of children to request space for consecutively
    /// in the given orientation.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `min-children-per-line`
    ///  The minimum number of children to allocate consecutively
    /// in the given orientation.
    ///
    /// Setting the minimum children per line ensures
    /// that a reasonably small height will be requested
    /// for the overall minimum width of the box.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `row-spacing`
    ///  The amount of vertical space between two children.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `selection-mode`
    ///  The selection mode used by the flow box.
    ///
    /// Readable | Writeable
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `can-focus`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `can-target`
    ///  Whether the widget can receive pointer events.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-classes`
    ///  A list of css classes applied to this widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `css-name`
    ///  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.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `cursor`
    ///  The cursor used by @widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focus-on-click`
    ///  Whether the widget should grab focus when it is clicked with the mouse.
    ///
    /// This property is only relevant for widgets that can take focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `focusable`
    ///  Whether this widget itself will accept the input focus.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Whether the widget is the default widget.
    ///
    /// Readable
    ///
    ///
    /// #### `has-focus`
    ///  Whether the widget has the input focus.
    ///
    /// Readable
    ///
    ///
    /// #### `has-tooltip`
    ///  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 [`query-tooltip`][struct@crate::Widget#query-tooltip] to
    /// determine whether it will provide a tooltip or not.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Override for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the `hexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `layout-manager`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-bottom`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-end`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-start`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-top`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  The name of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `overflow`
    ///  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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  The parent widget of this widget.
    ///
    /// Readable
    ///
    ///
    /// #### `receives-default`
    ///  Whether the widget will receive the default action when it is focused.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `root`
    ///  The [`Root`][crate::Root] widget of the widget tree containing this widget.
    ///
    /// This will be [`None`] if the widget is not contained in a root widget.
    ///
    /// Readable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Whether the widget responds to input.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-markup`
    ///  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`]:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to [`true`]
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-text`
    ///  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`]:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to [`true`]
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the `vexpand` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Whether the widget is visible.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Override for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    ///
    /// Readable | Writeable
    /// </details>
    /// <details><summary><h4>Accessible</h4></summary>
    ///
    ///
    /// #### `accessible-role`
    ///  The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    ///
    /// Readable | Writeable
    /// </details>
    /// <details><summary><h4>Orientable</h4></summary>
    ///
    ///
    /// #### `orientation`
    ///  The orientation of the orientable.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `activate-cursor-child`
    ///  Emitted when the user activates the @box_.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// Action
    ///
    ///
    /// #### `child-activated`
    ///  Emitted when a child has been activated by the user.
    ///
    ///
    ///
    ///
    /// #### `move-cursor`
    ///  Emitted when the user initiates a cursor movement.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    /// Applications should not connect to it, but may emit it with
    /// g_signal_emit_by_name() if they need to control the cursor
    /// programmatically.
    ///
    /// The default bindings for this signal come in two variants,
    /// the variant with the Shift modifier extends the selection,
    /// the variant without the Shift modifier does not.
    /// There are too many key combinations to list them all here.
    ///
    /// - <kbd>←</kbd>, <kbd>→</kbd>, <kbd>↑</kbd>, <kbd>↓</kbd>
    ///   move by individual children
    /// - <kbd>Home</kbd>, <kbd>End</kbd> move to the ends of the box
    /// - <kbd>PgUp</kbd>, <kbd>PgDn</kbd> move vertically by pages
    ///
    /// Action
    ///
    ///
    /// #### `select-all`
    ///  Emitted to select all children of the box,
    /// if the selection mode permits it.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal is <kbd>Ctrl</kbd>-<kbd>a</kbd>.
    ///
    /// Action
    ///
    ///
    /// #### `selected-children-changed`
    ///  Emitted when the set of selected children changes.
    ///
    /// Use [`FlowBox::selected_foreach()`][crate::FlowBox::selected_foreach()] or
    /// [`FlowBox::selected_children()`][crate::FlowBox::selected_children()] to obtain the
    /// selected children.
    ///
    ///
    ///
    ///
    /// #### `toggle-cursor-child`
    ///  Emitted to toggle the selection of the child that has the focus.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default binding for this signal is <kbd>Ctrl</kbd>-<kbd>Space</kbd>.
    ///
    /// Action
    ///
    ///
    /// #### `unselect-all`
    ///  Emitted to unselect all children of the box,
    /// if the selection mode permits it.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal is <kbd>Ctrl</kbd>-<kbd>Shift</kbd>-<kbd>a</kbd>.
    ///
    /// Action
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `destroy`
    ///  Signals that all holders of a reference to the widget should release
    /// the reference that they hold.
    ///
    /// May result in finalization of the widget if all references are released.
    ///
    /// This signal is not suitable for saving widget state.
    ///
    ///
    ///
    ///
    /// #### `direction-changed`
    ///  Emitted when the text direction of a widget changes.
    ///
    ///
    ///
    ///
    /// #### `hide`
    ///  Emitted when @widget is hidden.
    ///
    ///
    ///
    ///
    /// #### `keynav-failed`
    ///  Emitted if keyboard navigation fails.
    ///
    /// See [`WidgetExt::keynav_failed()`][crate::prelude::WidgetExt::keynav_failed()] for details.
    ///
    ///
    ///
    ///
    /// #### `map`
    ///  Emitted when @widget is going to be mapped.
    ///
    /// A widget is mapped when the widget is visible (which is controlled with
    /// [`visible`][struct@crate::Widget#visible]) and all its parents up to the toplevel widget
    /// are also visible.
    ///
    /// The ::map signal can be used to determine whether a widget will be drawn,
    /// for instance it can resume an animation that was stopped during the
    /// emission of [`unmap`][struct@crate::Widget#unmap].
    ///
    ///
    ///
    ///
    /// #### `mnemonic-activate`
    ///  Emitted when a widget is activated via a mnemonic.
    ///
    /// The default handler for this signal activates @widget if @group_cycling
    /// is [`false`], or just makes @widget grab focus if @group_cycling is [`true`].
    ///
    ///
    ///
    ///
    /// #### `move-focus`
    ///  Emitted when the focus is moved.
    ///
    /// The ::move-focus signal is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal are <kbd>Tab</kbd> to move forward,
    /// and <kbd>Shift</kbd>+<kbd>Tab</kbd> to move backward.
    ///
    /// Action
    ///
    ///
    /// #### `query-tooltip`
    ///  Emitted when the widget’s tooltip is about to be shown.
    ///
    /// This happens when the [`has-tooltip`][struct@crate::Widget#has-tooltip] property
    /// is [`true`] and the hover timeout has expired with the cursor hovering
    /// "above" @widget; or emitted when @widget got focus in keyboard mode.
    ///
    /// Using the given coordinates, the signal handler should determine
    /// whether a tooltip should be shown for @widget. If this is the case
    /// [`true`] should be returned, [`false`] otherwise.  Note that if
    /// @keyboard_mode is [`true`], the values of @x and @y are undefined and
    /// should not be used.
    ///
    /// The signal handler is free to manipulate @tooltip with the therefore
    /// destined function calls.
    ///
    ///
    ///
    ///
    /// #### `realize`
    ///  Emitted when @widget is associated with a [`gdk::Surface`][crate::gdk::Surface].
    ///
    /// This means that [`WidgetExt::realize()`][crate::prelude::WidgetExt::realize()] has been called
    /// or the widget has been mapped (that is, it is going to be drawn).
    ///
    ///
    ///
    ///
    /// #### `show`
    ///  Emitted when @widget is shown.
    ///
    ///
    ///
    ///
    /// #### `state-flags-changed`
    ///  Emitted when the widget state changes.
    ///
    /// See [`WidgetExt::state_flags()`][crate::prelude::WidgetExt::state_flags()].
    ///
    ///
    ///
    ///
    /// #### `unmap`
    ///  Emitted when @widget is going to be unmapped.
    ///
    /// A widget is unmapped when either it or any of its parents up to the
    /// toplevel widget have been set as hidden.
    ///
    /// As ::unmap indicates that a widget will not be shown any longer,
    /// it can be used to, for example, stop an animation on the widget.
    ///
    ///
    ///
    ///
    /// #### `unrealize`
    ///  Emitted when the [`gdk::Surface`][crate::gdk::Surface] associated with @widget is destroyed.
    ///
    /// This means that [`WidgetExt::unrealize()`][crate::prelude::WidgetExt::unrealize()] has been called
    /// or the widget has been unmapped (that is, it is going to be hidden).
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`AccessibleExt`][trait@crate::prelude::AccessibleExt], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`ConstraintTargetExt`][trait@crate::prelude::ConstraintTargetExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`AccessibleExtManual`][trait@crate::prelude::AccessibleExtManual]
    #[doc(alias = "GtkFlowBox")]
    pub struct FlowBox(Object<ffi::GtkFlowBox>) @extends Widget, @implements Accessible, Buildable, ConstraintTarget, Orientable;

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

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

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

    /// Adds @child to the end of @self.
    ///
    /// If a sort function is set, the widget will
    /// actually be inserted at the calculated position.
    ///
    /// See also: [`insert()`][Self::insert()].
    /// ## `child`
    /// the [`Widget`][crate::Widget] to add
    #[cfg(feature = "v4_6")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_6")))]
    #[doc(alias = "gtk_flow_box_append")]
    pub fn append(&self, child: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_flow_box_append(self.to_glib_none().0, child.as_ref().to_glib_none().0);
        }
    }

    /// Binds @model to @self.
    ///
    /// If @self was already bound to a model, that previous binding is
    /// destroyed.
    ///
    /// The contents of @self are cleared and then filled with widgets that
    /// represent items from @model. @self is updated whenever @model changes.
    /// If @model is [`None`], @self is left empty.
    ///
    /// It is undefined to add or remove widgets directly (for example, with
    /// [`insert()`][Self::insert()]) while @self is bound to a model.
    ///
    /// Note that using a model is incompatible with the filtering and sorting
    /// functionality in [`FlowBox`][crate::FlowBox]. When using a model, filtering and sorting
    /// should be implemented by the model.
    /// ## `model`
    /// the `GListModel` to be bound to @self
    /// ## `create_widget_func`
    /// a function that creates widgets for items
    #[doc(alias = "gtk_flow_box_bind_model")]
    pub fn bind_model<P: Fn(&glib::Object) -> Widget + 'static>(
        &self,
        model: Option<&impl IsA<gio::ListModel>>,
        create_widget_func: P,
    ) {
        let create_widget_func_data: Box_<P> = Box_::new(create_widget_func);
        unsafe extern "C" fn create_widget_func_func<P: Fn(&glib::Object) -> Widget + 'static>(
            item: *mut glib::gobject_ffi::GObject,
            user_data: glib::ffi::gpointer,
        ) -> *mut ffi::GtkWidget {
            let item = from_glib_borrow(item);
            let callback = &*(user_data as *mut P);
            (*callback)(&item).to_glib_full()
        }
        let create_widget_func = Some(create_widget_func_func::<P> as _);
        unsafe extern "C" fn user_data_free_func_func<P: Fn(&glib::Object) -> Widget + 'static>(
            data: glib::ffi::gpointer,
        ) {
            let _callback = Box_::from_raw(data as *mut P);
        }
        let destroy_call4 = Some(user_data_free_func_func::<P> as _);
        let super_callback0: Box_<P> = create_widget_func_data;
        unsafe {
            ffi::gtk_flow_box_bind_model(
                self.to_glib_none().0,
                model.map(|p| p.as_ref()).to_glib_none().0,
                create_widget_func,
                Box_::into_raw(super_callback0) as *mut _,
                destroy_call4,
            );
        }
    }

    /// Returns whether children activate on single clicks.
    ///
    /// # Returns
    ///
    /// [`true`] if children are activated on single click,
    ///   [`false`] otherwise
    #[doc(alias = "gtk_flow_box_get_activate_on_single_click")]
    #[doc(alias = "get_activate_on_single_click")]
    pub fn activates_on_single_click(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_flow_box_get_activate_on_single_click(
                self.to_glib_none().0,
            ))
        }
    }

    /// Gets the nth child in the @self.
    /// ## `idx`
    /// the position of the child
    ///
    /// # Returns
    ///
    /// the child widget, which will
    ///   always be a [`FlowBoxChild`][crate::FlowBoxChild] or [`None`] in case no child widget
    ///   with the given index exists.
    #[doc(alias = "gtk_flow_box_get_child_at_index")]
    #[doc(alias = "get_child_at_index")]
    pub fn child_at_index(&self, idx: i32) -> Option<FlowBoxChild> {
        unsafe {
            from_glib_none(ffi::gtk_flow_box_get_child_at_index(
                self.to_glib_none().0,
                idx,
            ))
        }
    }

    /// Gets the child in the (@x, @y) position.
    ///
    /// Both @x and @y are assumed to be relative to the origin of @self.
    /// ## `x`
    /// the x coordinate of the child
    /// ## `y`
    /// the y coordinate of the child
    ///
    /// # Returns
    ///
    /// the child widget, which will
    ///   always be a [`FlowBoxChild`][crate::FlowBoxChild] or [`None`] in case no child widget
    ///   exists for the given x and y coordinates.
    #[doc(alias = "gtk_flow_box_get_child_at_pos")]
    #[doc(alias = "get_child_at_pos")]
    pub fn child_at_pos(&self, x: i32, y: i32) -> Option<FlowBoxChild> {
        unsafe {
            from_glib_none(ffi::gtk_flow_box_get_child_at_pos(
                self.to_glib_none().0,
                x,
                y,
            ))
        }
    }

    /// Gets the horizontal spacing.
    ///
    /// # Returns
    ///
    /// the horizontal spacing
    #[doc(alias = "gtk_flow_box_get_column_spacing")]
    #[doc(alias = "get_column_spacing")]
    pub fn column_spacing(&self) -> u32 {
        unsafe { ffi::gtk_flow_box_get_column_spacing(self.to_glib_none().0) }
    }

    /// Returns whether the box is homogeneous.
    ///
    /// # Returns
    ///
    /// [`true`] if the box is homogeneous.
    #[doc(alias = "gtk_flow_box_get_homogeneous")]
    #[doc(alias = "get_homogeneous")]
    pub fn is_homogeneous(&self) -> bool {
        unsafe { from_glib(ffi::gtk_flow_box_get_homogeneous(self.to_glib_none().0)) }
    }

    /// Gets the maximum number of children per line.
    ///
    /// # Returns
    ///
    /// the maximum number of children per line
    #[doc(alias = "gtk_flow_box_get_max_children_per_line")]
    #[doc(alias = "get_max_children_per_line")]
    pub fn max_children_per_line(&self) -> u32 {
        unsafe { ffi::gtk_flow_box_get_max_children_per_line(self.to_glib_none().0) }
    }

    /// Gets the minimum number of children per line.
    ///
    /// # Returns
    ///
    /// the minimum number of children per line
    #[doc(alias = "gtk_flow_box_get_min_children_per_line")]
    #[doc(alias = "get_min_children_per_line")]
    pub fn min_children_per_line(&self) -> u32 {
        unsafe { ffi::gtk_flow_box_get_min_children_per_line(self.to_glib_none().0) }
    }

    /// Gets the vertical spacing.
    ///
    /// # Returns
    ///
    /// the vertical spacing
    #[doc(alias = "gtk_flow_box_get_row_spacing")]
    #[doc(alias = "get_row_spacing")]
    pub fn row_spacing(&self) -> u32 {
        unsafe { ffi::gtk_flow_box_get_row_spacing(self.to_glib_none().0) }
    }

    /// Creates a list of all selected children.
    ///
    /// # Returns
    ///
    ///
    ///   A `GList` containing the [`Widget`][crate::Widget] for each selected child.
    ///   Free with g_list_free() when done.
    #[doc(alias = "gtk_flow_box_get_selected_children")]
    #[doc(alias = "get_selected_children")]
    pub fn selected_children(&self) -> Vec<FlowBoxChild> {
        unsafe {
            FromGlibPtrContainer::from_glib_container(ffi::gtk_flow_box_get_selected_children(
                self.to_glib_none().0,
            ))
        }
    }

    /// Gets the selection mode of @self.
    ///
    /// # Returns
    ///
    /// the [`SelectionMode`][crate::SelectionMode]
    #[doc(alias = "gtk_flow_box_get_selection_mode")]
    #[doc(alias = "get_selection_mode")]
    pub fn selection_mode(&self) -> SelectionMode {
        unsafe { from_glib(ffi::gtk_flow_box_get_selection_mode(self.to_glib_none().0)) }
    }

    /// Inserts the @widget into @self at @position.
    ///
    /// If a sort function is set, the widget will actually be inserted
    /// at the calculated position.
    ///
    /// If @position is -1, or larger than the total number of children
    /// in the @self, then the @widget will be appended to the end.
    /// ## `widget`
    /// the [`Widget`][crate::Widget] to add
    /// ## `position`
    /// the position to insert @child in
    #[doc(alias = "gtk_flow_box_insert")]
    pub fn insert(&self, widget: &impl IsA<Widget>, position: i32) {
        unsafe {
            ffi::gtk_flow_box_insert(
                self.to_glib_none().0,
                widget.as_ref().to_glib_none().0,
                position,
            );
        }
    }

    /// Updates the filtering for all children.
    ///
    /// Call this function when the result of the filter
    /// function on the @self is changed due to an external
    /// factor. For instance, this would be used if the
    /// filter function just looked for a specific search
    /// term, and the entry with the string has changed.
    #[doc(alias = "gtk_flow_box_invalidate_filter")]
    pub fn invalidate_filter(&self) {
        unsafe {
            ffi::gtk_flow_box_invalidate_filter(self.to_glib_none().0);
        }
    }

    /// Updates the sorting for all children.
    ///
    /// Call this when the result of the sort function on
    /// @self is changed due to an external factor.
    #[doc(alias = "gtk_flow_box_invalidate_sort")]
    pub fn invalidate_sort(&self) {
        unsafe {
            ffi::gtk_flow_box_invalidate_sort(self.to_glib_none().0);
        }
    }

    /// Adds @child to the start of @self.
    ///
    /// If a sort function is set, the widget will
    /// actually be inserted at the calculated position.
    ///
    /// See also: [`insert()`][Self::insert()].
    /// ## `child`
    /// the [`Widget`][crate::Widget] to add
    #[cfg(feature = "v4_6")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_6")))]
    #[doc(alias = "gtk_flow_box_prepend")]
    pub fn prepend(&self, child: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_flow_box_prepend(self.to_glib_none().0, child.as_ref().to_glib_none().0);
        }
    }

    /// Removes a child from @self.
    /// ## `widget`
    /// the child widget to remove
    #[doc(alias = "gtk_flow_box_remove")]
    pub fn remove(&self, widget: &impl IsA<Widget>) {
        unsafe {
            ffi::gtk_flow_box_remove(self.to_glib_none().0, widget.as_ref().to_glib_none().0);
        }
    }

    /// Removes all children from @self.
    ///
    /// This function does nothing if @self is backed by a model.
    #[cfg(feature = "v4_12")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_12")))]
    #[doc(alias = "gtk_flow_box_remove_all")]
    pub fn remove_all(&self) {
        unsafe {
            ffi::gtk_flow_box_remove_all(self.to_glib_none().0);
        }
    }

    /// Select all children of @self, if the selection
    /// mode allows it.
    #[doc(alias = "gtk_flow_box_select_all")]
    pub fn select_all(&self) {
        unsafe {
            ffi::gtk_flow_box_select_all(self.to_glib_none().0);
        }
    }

    /// Selects a single child of @self, if the selection
    /// mode allows it.
    /// ## `child`
    /// a child of @self
    #[doc(alias = "gtk_flow_box_select_child")]
    pub fn select_child(&self, child: &impl IsA<FlowBoxChild>) {
        unsafe {
            ffi::gtk_flow_box_select_child(self.to_glib_none().0, child.as_ref().to_glib_none().0);
        }
    }

    /// Calls a function for each selected child.
    ///
    /// Note that the selection cannot be modified from within
    /// this function.
    /// ## `func`
    /// the function to call for each selected child
    #[doc(alias = "gtk_flow_box_selected_foreach")]
    pub fn selected_foreach<P: FnMut(&FlowBox, &FlowBoxChild)>(&self, func: P) {
        let func_data: P = func;
        unsafe extern "C" fn func_func<P: FnMut(&FlowBox, &FlowBoxChild)>(
            box_: *mut ffi::GtkFlowBox,
            child: *mut ffi::GtkFlowBoxChild,
            user_data: glib::ffi::gpointer,
        ) {
            let box_ = from_glib_borrow(box_);
            let child = from_glib_borrow(child);
            let callback = user_data as *mut P;
            (*callback)(&box_, &child)
        }
        let func = Some(func_func::<P> as _);
        let super_callback0: &P = &func_data;
        unsafe {
            ffi::gtk_flow_box_selected_foreach(
                self.to_glib_none().0,
                func,
                super_callback0 as *const _ as *mut _,
            );
        }
    }

    /// If @single is [`true`], children will be activated when you click
    /// on them, otherwise you need to double-click.
    /// ## `single`
    /// [`true`] to emit child-activated on a single click
    #[doc(alias = "gtk_flow_box_set_activate_on_single_click")]
    pub fn set_activate_on_single_click(&self, single: bool) {
        unsafe {
            ffi::gtk_flow_box_set_activate_on_single_click(
                self.to_glib_none().0,
                single.into_glib(),
            );
        }
    }

    /// Sets the horizontal space to add between children.
    /// ## `spacing`
    /// the spacing to use
    #[doc(alias = "gtk_flow_box_set_column_spacing")]
    pub fn set_column_spacing(&self, spacing: u32) {
        unsafe {
            ffi::gtk_flow_box_set_column_spacing(self.to_glib_none().0, spacing);
        }
    }

    /// By setting a filter function on the @self one can decide dynamically
    /// which of the children to show.
    ///
    /// For instance, to implement a search function that only shows the
    /// children matching the search terms.
    ///
    /// The @filter_func will be called for each child after the call, and
    /// it will continue to be called each time a child changes (via
    /// [`FlowBoxChildExt::changed()`][crate::prelude::FlowBoxChildExt::changed()]) or when
    /// [`invalidate_filter()`][Self::invalidate_filter()] is called.
    ///
    /// Note that using a filter function is incompatible with using a model
    /// (see [`bind_model()`][Self::bind_model()]).
    /// ## `filter_func`
    /// callback that
    ///   lets you filter which children to show
    #[doc(alias = "gtk_flow_box_set_filter_func")]
    pub fn set_filter_func<P: Fn(&FlowBoxChild) -> bool + 'static>(&self, filter_func: P) {
        let filter_func_data: Box_<P> = Box_::new(filter_func);
        unsafe extern "C" fn filter_func_func<P: Fn(&FlowBoxChild) -> bool + 'static>(
            child: *mut ffi::GtkFlowBoxChild,
            user_data: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let child = from_glib_borrow(child);
            let callback = &*(user_data as *mut P);
            (*callback)(&child).into_glib()
        }
        let filter_func = Some(filter_func_func::<P> as _);
        unsafe extern "C" fn destroy_func<P: Fn(&FlowBoxChild) -> bool + 'static>(
            data: glib::ffi::gpointer,
        ) {
            let _callback = Box_::from_raw(data as *mut P);
        }
        let destroy_call3 = Some(destroy_func::<P> as _);
        let super_callback0: Box_<P> = filter_func_data;
        unsafe {
            ffi::gtk_flow_box_set_filter_func(
                self.to_glib_none().0,
                filter_func,
                Box_::into_raw(super_callback0) as *mut _,
                destroy_call3,
            );
        }
    }

    /// Hooks up an adjustment to focus handling in @self.
    ///
    /// The adjustment is also used for autoscrolling during
    /// rubberband selection. See [`ScrolledWindow::hadjustment()`][crate::ScrolledWindow::hadjustment()]
    /// for a typical way of obtaining the adjustment, and
    /// [`set_vadjustment()`][Self::set_vadjustment()] for setting the vertical
    /// adjustment.
    ///
    /// The adjustments have to be in pixel units and in the same
    /// coordinate system as the allocation for immediate children
    /// of the box.
    /// ## `adjustment`
    /// an adjustment which should be adjusted
    ///    when the focus is moved among the descendents of @container
    #[doc(alias = "gtk_flow_box_set_hadjustment")]
    pub fn set_hadjustment(&self, adjustment: &impl IsA<Adjustment>) {
        unsafe {
            ffi::gtk_flow_box_set_hadjustment(
                self.to_glib_none().0,
                adjustment.as_ref().to_glib_none().0,
            );
        }
    }

    /// Sets whether or not all children of @self are given
    /// equal space in the box.
    /// ## `homogeneous`
    /// [`true`] to create equal allotments,
    ///   [`false`] for variable allotments
    #[doc(alias = "gtk_flow_box_set_homogeneous")]
    pub fn set_homogeneous(&self, homogeneous: bool) {
        unsafe {
            ffi::gtk_flow_box_set_homogeneous(self.to_glib_none().0, homogeneous.into_glib());
        }
    }

    /// Sets the maximum number of children to request and
    /// allocate space for in @self’s orientation.
    ///
    /// Setting the maximum number of children per line
    /// limits the overall natural size request to be no more
    /// than @n_children children long in the given orientation.
    /// ## `n_children`
    /// the maximum number of children per line
    #[doc(alias = "gtk_flow_box_set_max_children_per_line")]
    pub fn set_max_children_per_line(&self, n_children: u32) {
        unsafe {
            ffi::gtk_flow_box_set_max_children_per_line(self.to_glib_none().0, n_children);
        }
    }

    /// Sets the minimum number of children to line up
    /// in @self’s orientation before flowing.
    /// ## `n_children`
    /// the minimum number of children per line
    #[doc(alias = "gtk_flow_box_set_min_children_per_line")]
    pub fn set_min_children_per_line(&self, n_children: u32) {
        unsafe {
            ffi::gtk_flow_box_set_min_children_per_line(self.to_glib_none().0, n_children);
        }
    }

    /// Sets the vertical space to add between children.
    /// ## `spacing`
    /// the spacing to use
    #[doc(alias = "gtk_flow_box_set_row_spacing")]
    pub fn set_row_spacing(&self, spacing: u32) {
        unsafe {
            ffi::gtk_flow_box_set_row_spacing(self.to_glib_none().0, spacing);
        }
    }

    /// Sets how selection works in @self.
    /// ## `mode`
    /// the new selection mode
    #[doc(alias = "gtk_flow_box_set_selection_mode")]
    pub fn set_selection_mode(&self, mode: SelectionMode) {
        unsafe {
            ffi::gtk_flow_box_set_selection_mode(self.to_glib_none().0, mode.into_glib());
        }
    }

    /// Hooks up an adjustment to focus handling in @self.
    ///
    /// The adjustment is also used for autoscrolling during
    /// rubberband selection. See [`ScrolledWindow::vadjustment()`][crate::ScrolledWindow::vadjustment()]
    /// for a typical way of obtaining the adjustment, and
    /// [`set_hadjustment()`][Self::set_hadjustment()] for setting the horizontal
    /// adjustment.
    ///
    /// The adjustments have to be in pixel units and in the same
    /// coordinate system as the allocation for immediate children
    /// of the box.
    /// ## `adjustment`
    /// an adjustment which should be adjusted
    ///    when the focus is moved among the descendents of @container
    #[doc(alias = "gtk_flow_box_set_vadjustment")]
    pub fn set_vadjustment(&self, adjustment: &impl IsA<Adjustment>) {
        unsafe {
            ffi::gtk_flow_box_set_vadjustment(
                self.to_glib_none().0,
                adjustment.as_ref().to_glib_none().0,
            );
        }
    }

    /// Unselect all children of @self, if the selection
    /// mode allows it.
    #[doc(alias = "gtk_flow_box_unselect_all")]
    pub fn unselect_all(&self) {
        unsafe {
            ffi::gtk_flow_box_unselect_all(self.to_glib_none().0);
        }
    }

    /// Unselects a single child of @self, if the selection
    /// mode allows it.
    /// ## `child`
    /// a child of @self
    #[doc(alias = "gtk_flow_box_unselect_child")]
    pub fn unselect_child(&self, child: &impl IsA<FlowBoxChild>) {
        unsafe {
            ffi::gtk_flow_box_unselect_child(
                self.to_glib_none().0,
                child.as_ref().to_glib_none().0,
            );
        }
    }

    #[doc(alias = "accept-unpaired-release")]
    pub fn accepts_unpaired_release(&self) -> bool {
        ObjectExt::property(self, "accept-unpaired-release")
    }

    #[doc(alias = "accept-unpaired-release")]
    pub fn set_accept_unpaired_release(&self, accept_unpaired_release: bool) {
        ObjectExt::set_property(self, "accept-unpaired-release", accept_unpaired_release)
    }

    /// Emitted when the user activates the @box_.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    #[doc(alias = "activate-cursor-child")]
    pub fn connect_activate_cursor_child<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_cursor_child_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate-cursor-child\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    activate_cursor_child_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_activate_cursor_child(&self) {
        self.emit_by_name::<()>("activate-cursor-child", &[]);
    }

    /// Emitted when a child has been activated by the user.
    /// ## `child`
    /// the child that is activated
    #[doc(alias = "child-activated")]
    pub fn connect_child_activated<F: Fn(&Self, &FlowBoxChild) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn child_activated_trampoline<
            F: Fn(&FlowBox, &FlowBoxChild) + 'static,
        >(
            this: *mut ffi::GtkFlowBox,
            child: *mut ffi::GtkFlowBoxChild,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this), &from_glib_borrow(child))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"child-activated\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    child_activated_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted when the user initiates a cursor movement.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    /// Applications should not connect to it, but may emit it with
    /// g_signal_emit_by_name() if they need to control the cursor
    /// programmatically.
    ///
    /// The default bindings for this signal come in two variants,
    /// the variant with the Shift modifier extends the selection,
    /// the variant without the Shift modifier does not.
    /// There are too many key combinations to list them all here.
    ///
    /// - <kbd>←</kbd>, <kbd>→</kbd>, <kbd>↑</kbd>, <kbd>↓</kbd>
    ///   move by individual children
    /// - <kbd>Home</kbd>, <kbd>End</kbd> move to the ends of the box
    /// - <kbd>PgUp</kbd>, <kbd>PgDn</kbd> move vertically by pages
    /// ## `step`
    /// the granularity of the move, as a [`MovementStep`][crate::MovementStep]
    /// ## `count`
    /// the number of @step units to move
    /// ## `extend`
    /// whether to extend the selection
    /// ## `modify`
    /// whether to modify the selection
    ///
    /// # Returns
    ///
    /// [`true`] to stop other handlers from being invoked for the event.
    /// [`false`] to propagate the event further.
    #[doc(alias = "move-cursor")]
    pub fn connect_move_cursor<F: Fn(&Self, MovementStep, i32, bool, bool) -> bool + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn move_cursor_trampoline<
            F: Fn(&FlowBox, MovementStep, i32, bool, bool) -> bool + 'static,
        >(
            this: *mut ffi::GtkFlowBox,
            step: ffi::GtkMovementStep,
            count: libc::c_int,
            extend: glib::ffi::gboolean,
            modify: glib::ffi::gboolean,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(
                &from_glib_borrow(this),
                from_glib(step),
                count,
                from_glib(extend),
                from_glib(modify),
            )
            .into_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-cursor\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    move_cursor_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_move_cursor(
        &self,
        step: MovementStep,
        count: i32,
        extend: bool,
        modify: bool,
    ) -> bool {
        self.emit_by_name("move-cursor", &[&step, &count, &extend, &modify])
    }

    /// Emitted to select all children of the box,
    /// if the selection mode permits it.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal is <kbd>Ctrl</kbd>-<kbd>a</kbd>.
    #[doc(alias = "select-all")]
    pub fn connect_select_all<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn select_all_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"select-all\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    select_all_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_select_all(&self) {
        self.emit_by_name::<()>("select-all", &[]);
    }

    /// Emitted when the set of selected children changes.
    ///
    /// Use [`selected_foreach()`][Self::selected_foreach()] or
    /// [`selected_children()`][Self::selected_children()] to obtain the
    /// selected children.
    #[doc(alias = "selected-children-changed")]
    pub fn connect_selected_children_changed<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn selected_children_changed_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"selected-children-changed\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    selected_children_changed_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// Emitted to toggle the selection of the child that has the focus.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default binding for this signal is <kbd>Ctrl</kbd>-<kbd>Space</kbd>.
    #[doc(alias = "toggle-cursor-child")]
    pub fn connect_toggle_cursor_child<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn toggle_cursor_child_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"toggle-cursor-child\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    toggle_cursor_child_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_toggle_cursor_child(&self) {
        self.emit_by_name::<()>("toggle-cursor-child", &[]);
    }

    /// Emitted to unselect all children of the box,
    /// if the selection mode permits it.
    ///
    /// This is a [keybinding signal](class.SignalAction.html).
    ///
    /// The default bindings for this signal is <kbd>Ctrl</kbd>-<kbd>Shift</kbd>-<kbd>a</kbd>.
    #[doc(alias = "unselect-all")]
    pub fn connect_unselect_all<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn unselect_all_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"unselect-all\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    unselect_all_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    pub fn emit_unselect_all(&self) {
        self.emit_by_name::<()>("unselect-all", &[]);
    }

    #[doc(alias = "accept-unpaired-release")]
    pub fn connect_accept_unpaired_release_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_accept_unpaired_release_trampoline<
            F: Fn(&FlowBox) + 'static,
        >(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::accept-unpaired-release\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_accept_unpaired_release_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "activate-on-single-click")]
    pub fn connect_activate_on_single_click_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_activate_on_single_click_trampoline<
            F: Fn(&FlowBox) + 'static,
        >(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::activate-on-single-click\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_activate_on_single_click_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "column-spacing")]
    pub fn connect_column_spacing_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_column_spacing_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::column-spacing\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_column_spacing_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "homogeneous")]
    pub fn connect_homogeneous_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_homogeneous_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::homogeneous\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_homogeneous_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "max-children-per-line")]
    pub fn connect_max_children_per_line_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_max_children_per_line_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::max-children-per-line\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_max_children_per_line_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "min-children-per-line")]
    pub fn connect_min_children_per_line_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_min_children_per_line_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::min-children-per-line\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_min_children_per_line_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "row-spacing")]
    pub fn connect_row_spacing_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_row_spacing_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::row-spacing\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_row_spacing_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "selection-mode")]
    pub fn connect_selection_mode_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_selection_mode_trampoline<F: Fn(&FlowBox) + 'static>(
            this: *mut ffi::GtkFlowBox,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::selection-mode\0".as_ptr() as *const _,
                Some(std::mem::transmute::<_, unsafe extern "C" fn()>(
                    notify_selection_mode_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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

// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`FlowBox`] 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 FlowBoxBuilder {
    builder: glib::object::ObjectBuilder<'static, FlowBox>,
}

impl FlowBoxBuilder {
    fn new() -> Self {
        Self {
            builder: glib::object::Object::builder(),
        }
    }

    pub fn accept_unpaired_release(self, accept_unpaired_release: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("accept-unpaired-release", accept_unpaired_release),
        }
    }

    /// Determines whether children can be activated with a single
    /// click, or require a double-click.
    pub fn activate_on_single_click(self, activate_on_single_click: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("activate-on-single-click", activate_on_single_click),
        }
    }

    /// The amount of horizontal space between two children.
    pub fn column_spacing(self, column_spacing: u32) -> Self {
        Self {
            builder: self.builder.property("column-spacing", column_spacing),
        }
    }

    /// Determines whether all children should be allocated the
    /// same size.
    pub fn homogeneous(self, homogeneous: bool) -> Self {
        Self {
            builder: self.builder.property("homogeneous", homogeneous),
        }
    }

    /// The maximum amount of children to request space for consecutively
    /// in the given orientation.
    pub fn max_children_per_line(self, max_children_per_line: u32) -> Self {
        Self {
            builder: self
                .builder
                .property("max-children-per-line", max_children_per_line),
        }
    }

    /// The minimum number of children to allocate consecutively
    /// in the given orientation.
    ///
    /// Setting the minimum children per line ensures
    /// that a reasonably small height will be requested
    /// for the overall minimum width of the box.
    pub fn min_children_per_line(self, min_children_per_line: u32) -> Self {
        Self {
            builder: self
                .builder
                .property("min-children-per-line", min_children_per_line),
        }
    }

    /// The amount of vertical space between two children.
    pub fn row_spacing(self, row_spacing: u32) -> Self {
        Self {
            builder: self.builder.property("row-spacing", row_spacing),
        }
    }

    /// The selection mode used by the flow box.
    pub fn selection_mode(self, selection_mode: SelectionMode) -> Self {
        Self {
            builder: self.builder.property("selection-mode", selection_mode),
        }
    }

    /// 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(self, can_focus: bool) -> Self {
        Self {
            builder: self.builder.property("can-focus", can_focus),
        }
    }

    /// Whether the widget can receive pointer events.
    pub fn can_target(self, can_target: bool) -> Self {
        Self {
            builder: self.builder.property("can-target", can_target),
        }
    }

    /// A list of css classes applied to this widget.
    pub fn css_classes(self, css_classes: impl Into<glib::StrV>) -> Self {
        Self {
            builder: self.builder.property("css-classes", css_classes.into()),
        }
    }

    /// 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(self, css_name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("css-name", css_name.into()),
        }
    }

    /// The cursor used by @widget.
    pub fn cursor(self, cursor: &gdk::Cursor) -> Self {
        Self {
            builder: self.builder.property("cursor", cursor.clone()),
        }
    }

    /// 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(self, focus_on_click: bool) -> Self {
        Self {
            builder: self.builder.property("focus-on-click", focus_on_click),
        }
    }

    /// Whether this widget itself will accept the input focus.
    pub fn focusable(self, focusable: bool) -> Self {
        Self {
            builder: self.builder.property("focusable", focusable),
        }
    }

    /// How to distribute horizontal space if widget gets extra space.
    pub fn halign(self, halign: Align) -> Self {
        Self {
            builder: self.builder.property("halign", halign),
        }
    }

    /// 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 [`query-tooltip`][struct@crate::Widget#query-tooltip] to
    /// determine whether it will provide a tooltip or not.
    pub fn has_tooltip(self, has_tooltip: bool) -> Self {
        Self {
            builder: self.builder.property("has-tooltip", has_tooltip),
        }
    }

    /// Override for height request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally.
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the `hexpand` property.
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    /// 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(self, layout_manager: &impl IsA<LayoutManager>) -> Self {
        Self {
            builder: self
                .builder
                .property("layout-manager", layout_manager.clone().upcast()),
        }
    }

    /// 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(self, margin_bottom: i32) -> Self {
        Self {
            builder: self.builder.property("margin-bottom", margin_bottom),
        }
    }

    /// 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(self, margin_end: i32) -> Self {
        Self {
            builder: self.builder.property("margin-end", margin_end),
        }
    }

    /// 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(self, margin_start: i32) -> Self {
        Self {
            builder: self.builder.property("margin-start", margin_start),
        }
    }

    /// 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(self, margin_top: i32) -> Self {
        Self {
            builder: self.builder.property("margin-top", margin_top),
        }
    }

    /// The name of the widget.
    pub fn name(self, name: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("name", name.into()),
        }
    }

    /// The requested opacity of the widget.
    pub fn opacity(self, opacity: f64) -> Self {
        Self {
            builder: self.builder.property("opacity", opacity),
        }
    }

    /// 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(self, overflow: Overflow) -> Self {
        Self {
            builder: self.builder.property("overflow", overflow),
        }
    }

    /// Whether the widget will receive the default action when it is focused.
    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    /// Whether the widget responds to input.
    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    /// 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`]:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to [`true`]
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_markup(self, tooltip_markup: impl Into<glib::GString>) -> Self {
        Self {
            builder: self
                .builder
                .property("tooltip-markup", tooltip_markup.into()),
        }
    }

    /// 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`]:
    /// [`has-tooltip`][struct@crate::Widget#has-tooltip] will automatically be set to [`true`]
    /// and there will be taken care of [`query-tooltip`][struct@crate::Widget#query-tooltip] in
    /// the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::Widget#tooltip-text] and
    /// [`tooltip-markup`][struct@crate::Widget#tooltip-markup] are set, the last one wins.
    pub fn tooltip_text(self, tooltip_text: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("tooltip-text", tooltip_text.into()),
        }
    }

    /// How to distribute vertical space if widget gets extra space.
    pub fn valign(self, valign: Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically.
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the `vexpand` property.
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    /// Whether the widget is visible.
    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    /// Override for width request of the widget.
    ///
    /// If this is -1, the natural request will be used.
    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

    /// The accessible role of the given [`Accessible`][crate::Accessible] implementation.
    ///
    /// The accessible role cannot be changed once set.
    pub fn accessible_role(self, accessible_role: AccessibleRole) -> Self {
        Self {
            builder: self.builder.property("accessible-role", accessible_role),
        }
    }

    /// The orientation of the orientable.
    pub fn orientation(self, orientation: Orientation) -> Self {
        Self {
            builder: self.builder.property("orientation", orientation),
        }
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`FlowBox`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> FlowBox {
        self.builder.build()
    }
}