// 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::Adjustment;
use crate::Align;
use crate::Buildable;
use crate::Container;
use crate::DestDefaults;
use crate::IconSize;
use crate::Orientable;
use crate::Orientation;
use crate::ResizeMode;
use crate::Scrollable;
use crate::ScrollablePolicy;
use crate::SelectionData;
use crate::TargetEntry;
use crate::ToolItem;
use crate::ToolItemGroup;
use crate::ToolPaletteDragTargets;
use crate::ToolbarStyle;
use crate::Widget;
use glib::object::Cast;
use glib::object::IsA;
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 [`ToolPalette`][crate::ToolPalette] allows you to add `GtkToolItems` to a palette-like
    /// container with different categories and drag and drop support.
    ///
    /// A [`ToolPalette`][crate::ToolPalette] is created with a call to [`new()`][Self::new()].
    ///
    /// `GtkToolItems` cannot be added directly to a [`ToolPalette`][crate::ToolPalette] -
    /// instead they are added to a [`ToolItemGroup`][crate::ToolItemGroup] which can than be added
    /// to a [`ToolPalette`][crate::ToolPalette]. To add a [`ToolItemGroup`][crate::ToolItemGroup] to a [`ToolPalette`][crate::ToolPalette],
    /// use [`ContainerExt::add()`][crate::prelude::ContainerExt::add()].
    ///
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// GtkWidget *palette, *group;
    /// GtkToolItem *item;
    ///
    /// palette = gtk_tool_palette_new ();
    /// group = gtk_tool_item_group_new (_("Test Category"));
    /// gtk_container_add (GTK_CONTAINER (palette), group);
    ///
    /// item = gtk_tool_button_new (NULL, _("_Open"));
    /// gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "document-open");
    /// gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
    /// ```
    ///
    /// The easiest way to use drag and drop with [`ToolPalette`][crate::ToolPalette] is to call
    /// [`ToolPaletteExt::add_drag_dest()`][crate::prelude::ToolPaletteExt::add_drag_dest()] with the desired drag source `palette`
    /// and the desired drag target `widget`. Then [`ToolPaletteExt::drag_item()`][crate::prelude::ToolPaletteExt::drag_item()]
    /// can be used to get the dragged item in the `signal::Widget::drag-data-received`
    /// signal handler of the drag target.
    ///
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static void
    /// passive_canvas_drag_data_received (GtkWidget        *widget,
    ///                                    GdkDragContext   *context,
    ///                                    gint              x,
    ///                                    gint              y,
    ///                                    GtkSelectionData *selection,
    ///                                    guint             info,
    ///                                    guint             time,
    ///                                    gpointer          data)
    /// {
    ///   GtkWidget *palette;
    ///   GtkWidget *item;
    ///
    ///   // Get the dragged item
    ///   palette = gtk_widget_get_ancestor (gtk_drag_get_source_widget (context),
    ///                                      GTK_TYPE_TOOL_PALETTE);
    ///   if (palette != NULL)
    ///     item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
    ///                                            selection);
    ///
    ///   // Do something with item
    /// }
    ///
    /// GtkWidget *target, palette;
    ///
    /// palette = gtk_tool_palette_new ();
    /// target = gtk_drawing_area_new ();
    ///
    /// g_signal_connect (G_OBJECT (target), "drag-data-received",
    ///                   G_CALLBACK (passive_canvas_drag_data_received), NULL);
    /// gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette), target,
    ///                                 GTK_DEST_DEFAULT_ALL,
    ///                                 GTK_TOOL_PALETTE_DRAG_ITEMS,
    ///                                 GDK_ACTION_COPY);
    /// ```
    ///
    /// # CSS nodes
    ///
    /// GtkToolPalette has a single CSS node named toolpalette.
    ///
    /// # Implements
    ///
    /// [`ToolPaletteExt`][trait@crate::prelude::ToolPaletteExt], [`ContainerExt`][trait@crate::prelude::ContainerExt], [`WidgetExt`][trait@crate::prelude::WidgetExt], [`trait@glib::ObjectExt`], [`BuildableExt`][trait@crate::prelude::BuildableExt], [`OrientableExt`][trait@crate::prelude::OrientableExt], [`ScrollableExt`][trait@crate::prelude::ScrollableExt], [`WidgetExtManual`][trait@crate::prelude::WidgetExtManual], [`BuildableExtManual`][trait@crate::prelude::BuildableExtManual]
    #[doc(alias = "GtkToolPalette")]
    pub struct ToolPalette(Object<ffi::GtkToolPalette, ffi::GtkToolPaletteClass>) @extends Container, Widget, @implements Buildable, Orientable, Scrollable;

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

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

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

    /// Get the target entry for a dragged [`ToolItemGroup`][crate::ToolItemGroup].
    ///
    /// # Returns
    ///
    /// the [`TargetEntry`][crate::TargetEntry] for a dragged group
    #[doc(alias = "gtk_tool_palette_get_drag_target_group")]
    #[doc(alias = "get_drag_target_group")]
    pub fn drag_target_group() -> Option<TargetEntry> {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ffi::gtk_tool_palette_get_drag_target_group()) }
    }

    /// Gets the target entry for a dragged [`ToolItem`][crate::ToolItem].
    ///
    /// # Returns
    ///
    /// the [`TargetEntry`][crate::TargetEntry] for a dragged item.
    #[doc(alias = "gtk_tool_palette_get_drag_target_item")]
    #[doc(alias = "get_drag_target_item")]
    pub fn drag_target_item() -> Option<TargetEntry> {
        assert_initialized_main_thread!();
        unsafe { from_glib_none(ffi::gtk_tool_palette_get_drag_target_item()) }
    }
}

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

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`ToolPalette`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
pub struct ToolPaletteBuilder {
    icon_size: Option<IconSize>,
    icon_size_set: Option<bool>,
    toolbar_style: Option<ToolbarStyle>,
    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>,
    orientation: Option<Orientation>,
    hadjustment: Option<Adjustment>,
    hscroll_policy: Option<ScrollablePolicy>,
    vadjustment: Option<Adjustment>,
    vscroll_policy: Option<ScrollablePolicy>,
}

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

    // rustdoc-stripper-ignore-next
    /// Build the [`ToolPalette`].
    pub fn build(self) -> ToolPalette {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref icon_size) = self.icon_size {
            properties.push(("icon-size", icon_size));
        }
        if let Some(ref icon_size_set) = self.icon_size_set {
            properties.push(("icon-size-set", icon_size_set));
        }
        if let Some(ref toolbar_style) = self.toolbar_style {
            properties.push(("toolbar-style", toolbar_style));
        }
        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 orientation) = self.orientation {
            properties.push(("orientation", orientation));
        }
        if let Some(ref hadjustment) = self.hadjustment {
            properties.push(("hadjustment", hadjustment));
        }
        if let Some(ref hscroll_policy) = self.hscroll_policy {
            properties.push(("hscroll-policy", hscroll_policy));
        }
        if let Some(ref vadjustment) = self.vadjustment {
            properties.push(("vadjustment", vadjustment));
        }
        if let Some(ref vscroll_policy) = self.vscroll_policy {
            properties.push(("vscroll-policy", vscroll_policy));
        }
        glib::Object::new::<ToolPalette>(&properties)
            .expect("Failed to create an instance of ToolPalette")
    }

    /// The size of the icons in a tool palette. When this property is set,
    /// it overrides the default setting.
    ///
    /// This should only be used for special-purpose tool palettes, normal
    /// application tool palettes should respect the user preferences for the
    /// size of icons.
    pub fn icon_size(mut self, icon_size: IconSize) -> Self {
        self.icon_size = Some(icon_size);
        self
    }

    /// Is [`true`] if the `property::ToolPalette::icon-size` property has been set.
    pub fn icon_size_set(mut self, icon_size_set: bool) -> Self {
        self.icon_size_set = Some(icon_size_set);
        self
    }

    /// The style of items in the tool palette.
    pub fn toolbar_style(mut self, toolbar_style: ToolbarStyle) -> Self {
        self.toolbar_style = Some(toolbar_style);
        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
    }

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

    /// Horizontal [`Adjustment`][crate::Adjustment] of the scrollable widget. This adjustment is
    /// shared between the scrollable widget and its parent.
    pub fn hadjustment<P: IsA<Adjustment>>(mut self, hadjustment: &P) -> Self {
        self.hadjustment = Some(hadjustment.clone().upcast());
        self
    }

    /// Determines whether horizontal scrolling should start once the scrollable
    /// widget is allocated less than its minimum width or less than its natural width.
    pub fn hscroll_policy(mut self, hscroll_policy: ScrollablePolicy) -> Self {
        self.hscroll_policy = Some(hscroll_policy);
        self
    }

    /// Verical [`Adjustment`][crate::Adjustment] of the scrollable widget. This adjustment is shared
    /// between the scrollable widget and its parent.
    pub fn vadjustment<P: IsA<Adjustment>>(mut self, vadjustment: &P) -> Self {
        self.vadjustment = Some(vadjustment.clone().upcast());
        self
    }

    /// Determines whether vertical scrolling should start once the scrollable
    /// widget is allocated less than its minimum height or less than its natural height.
    pub fn vscroll_policy(mut self, vscroll_policy: ScrollablePolicy) -> Self {
        self.vscroll_policy = Some(vscroll_policy);
        self
    }
}

pub const NONE_TOOL_PALETTE: Option<&ToolPalette> = None;

/// Trait containing all [`struct@ToolPalette`] methods.
///
/// # Implementors
///
/// [`ToolPalette`][struct@crate::ToolPalette]
pub trait ToolPaletteExt: 'static {
    /// Sets `self` as drag source (see [`set_drag_source()`][Self::set_drag_source()])
    /// and sets `widget` as a drag destination for drags from `self`.
    /// See [`WidgetExtManual::drag_dest_set()`][crate::prelude::WidgetExtManual::drag_dest_set()].
    /// ## `widget`
    /// a [`Widget`][crate::Widget] which should be a drag destination for `self`
    /// ## `flags`
    /// the flags that specify what actions GTK+ should take for drops
    ///  on that widget
    /// ## `targets`
    /// the [`ToolPaletteDragTargets`][crate::ToolPaletteDragTargets] which the widget
    ///  should support
    /// ## `actions`
    /// the `GdkDragActions` which the widget should suppport
    #[doc(alias = "gtk_tool_palette_add_drag_dest")]
    fn add_drag_dest<P: IsA<Widget>>(
        &self,
        widget: &P,
        flags: DestDefaults,
        targets: ToolPaletteDragTargets,
        actions: gdk::DragAction,
    );

    /// Get the dragged item from the selection.
    /// This could be a [`ToolItem`][crate::ToolItem] or a [`ToolItemGroup`][crate::ToolItemGroup].
    /// ## `selection`
    /// a [`SelectionData`][crate::SelectionData]
    ///
    /// # Returns
    ///
    /// the dragged item in selection
    #[doc(alias = "gtk_tool_palette_get_drag_item")]
    #[doc(alias = "get_drag_item")]
    fn drag_item(&self, selection: &SelectionData) -> Option<Widget>;

    /// Gets the group at position (x, y).
    /// ## `x`
    /// the x position
    /// ## `y`
    /// the y position
    ///
    /// # Returns
    ///
    /// the [`ToolItemGroup`][crate::ToolItemGroup] at position
    /// or [`None`] if there is no such group
    #[doc(alias = "gtk_tool_palette_get_drop_group")]
    #[doc(alias = "get_drop_group")]
    fn drop_group(&self, x: i32, y: i32) -> Option<ToolItemGroup>;

    /// Gets the item at position (x, y).
    /// See [`drop_group()`][Self::drop_group()].
    /// ## `x`
    /// the x position
    /// ## `y`
    /// the y position
    ///
    /// # Returns
    ///
    /// the [`ToolItem`][crate::ToolItem] at position or [`None`] if there is no such item
    #[doc(alias = "gtk_tool_palette_get_drop_item")]
    #[doc(alias = "get_drop_item")]
    fn drop_item(&self, x: i32, y: i32) -> Option<ToolItem>;

    /// Gets whether `group` is exclusive or not.
    /// See [`set_exclusive()`][Self::set_exclusive()].
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup] which is a child of palette
    ///
    /// # Returns
    ///
    /// [`true`] if `group` is exclusive
    #[doc(alias = "gtk_tool_palette_get_exclusive")]
    #[doc(alias = "get_exclusive")]
    fn is_exclusive<P: IsA<ToolItemGroup>>(&self, group: &P) -> bool;

    /// Gets whether group should be given extra space.
    /// See [`set_expand()`][Self::set_expand()].
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup] which is a child of palette
    ///
    /// # Returns
    ///
    /// [`true`] if group should be given extra space, [`false`] otherwise
    #[doc(alias = "gtk_tool_palette_get_expand")]
    #[doc(alias = "get_expand")]
    fn expands<P: IsA<ToolItemGroup>>(&self, group: &P) -> bool;

    /// Gets the position of `group` in `self` as index.
    /// See [`set_group_position()`][Self::set_group_position()].
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup]
    ///
    /// # Returns
    ///
    /// the index of group or -1 if `group` is not a child of `self`
    #[doc(alias = "gtk_tool_palette_get_group_position")]
    #[doc(alias = "get_group_position")]
    fn group_position<P: IsA<ToolItemGroup>>(&self, group: &P) -> i32;

    /// Gets the size of icons in the tool palette.
    /// See [`set_icon_size()`][Self::set_icon_size()].
    ///
    /// # Returns
    ///
    /// the [`IconSize`][crate::IconSize] of icons in the tool palette
    #[doc(alias = "gtk_tool_palette_get_icon_size")]
    #[doc(alias = "get_icon_size")]
    fn icon_size(&self) -> IconSize;

    /// Gets the style (icons, text or both) of items in the tool palette.
    ///
    /// # Returns
    ///
    /// the [`ToolbarStyle`][crate::ToolbarStyle] of items in the tool palette.
    #[doc(alias = "gtk_tool_palette_get_style")]
    #[doc(alias = "get_style")]
    fn style(&self) -> ToolbarStyle;

    /// Sets the tool palette as a drag source.
    /// Enables all groups and items in the tool palette as drag sources
    /// on button 1 and button 3 press with copy and move actions.
    /// See [`WidgetExtManual::drag_source_set()`][crate::prelude::WidgetExtManual::drag_source_set()].
    /// ## `targets`
    /// the [`ToolPaletteDragTargets`][crate::ToolPaletteDragTargets]
    ///  which the widget should support
    #[doc(alias = "gtk_tool_palette_set_drag_source")]
    fn set_drag_source(&self, targets: ToolPaletteDragTargets);

    /// Sets whether the group should be exclusive or not.
    /// If an exclusive group is expanded all other groups are collapsed.
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup] which is a child of palette
    /// ## `exclusive`
    /// whether the group should be exclusive or not
    #[doc(alias = "gtk_tool_palette_set_exclusive")]
    fn set_exclusive<P: IsA<ToolItemGroup>>(&self, group: &P, exclusive: bool);

    /// Sets whether the group should be given extra space.
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup] which is a child of palette
    /// ## `expand`
    /// whether the group should be given extra space
    #[doc(alias = "gtk_tool_palette_set_expand")]
    fn set_expand<P: IsA<ToolItemGroup>>(&self, group: &P, expand: bool);

    /// Sets the position of the group as an index of the tool palette.
    /// If position is 0 the group will become the first child, if position is
    /// -1 it will become the last child.
    /// ## `group`
    /// a [`ToolItemGroup`][crate::ToolItemGroup] which is a child of palette
    /// ## `position`
    /// a new index for group
    #[doc(alias = "gtk_tool_palette_set_group_position")]
    fn set_group_position<P: IsA<ToolItemGroup>>(&self, group: &P, position: i32);

    /// Sets the size of icons in the tool palette.
    /// ## `icon_size`
    /// the [`IconSize`][crate::IconSize] that icons in the tool
    ///  palette shall have
    #[doc(alias = "gtk_tool_palette_set_icon_size")]
    fn set_icon_size(&self, icon_size: IconSize);

    /// Sets the style (text, icons or both) of items in the tool palette.
    /// ## `style`
    /// the [`ToolbarStyle`][crate::ToolbarStyle] that items in the tool palette shall have
    #[doc(alias = "gtk_tool_palette_set_style")]
    fn set_style(&self, style: ToolbarStyle);

    /// Unsets the tool palette icon size set with [`set_icon_size()`][Self::set_icon_size()],
    /// so that user preferences will be used to determine the icon size.
    #[doc(alias = "gtk_tool_palette_unset_icon_size")]
    fn unset_icon_size(&self);

    /// Unsets a toolbar style set with [`set_style()`][Self::set_style()],
    /// so that user preferences will be used to determine the toolbar style.
    #[doc(alias = "gtk_tool_palette_unset_style")]
    fn unset_style(&self);

    /// Is [`true`] if the `property::ToolPalette::icon-size` property has been set.
    #[doc(alias = "icon-size-set")]
    fn is_icon_size_set(&self) -> bool;

    /// Is [`true`] if the `property::ToolPalette::icon-size` property has been set.
    #[doc(alias = "icon-size-set")]
    fn set_icon_size_set(&self, icon_size_set: bool);

    /// The style of items in the tool palette.
    #[doc(alias = "toolbar-style")]
    fn toolbar_style(&self) -> ToolbarStyle;

    /// The style of items in the tool palette.
    #[doc(alias = "toolbar-style")]
    fn set_toolbar_style(&self, toolbar_style: ToolbarStyle);

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

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

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

impl<O: IsA<ToolPalette>> ToolPaletteExt for O {
    fn add_drag_dest<P: IsA<Widget>>(
        &self,
        widget: &P,
        flags: DestDefaults,
        targets: ToolPaletteDragTargets,
        actions: gdk::DragAction,
    ) {
        unsafe {
            ffi::gtk_tool_palette_add_drag_dest(
                self.as_ref().to_glib_none().0,
                widget.as_ref().to_glib_none().0,
                flags.into_glib(),
                targets.into_glib(),
                actions.into_glib(),
            );
        }
    }

    fn drag_item(&self, selection: &SelectionData) -> Option<Widget> {
        unsafe {
            from_glib_none(ffi::gtk_tool_palette_get_drag_item(
                self.as_ref().to_glib_none().0,
                selection.to_glib_none().0,
            ))
        }
    }

    fn drop_group(&self, x: i32, y: i32) -> Option<ToolItemGroup> {
        unsafe {
            from_glib_none(ffi::gtk_tool_palette_get_drop_group(
                self.as_ref().to_glib_none().0,
                x,
                y,
            ))
        }
    }

    fn drop_item(&self, x: i32, y: i32) -> Option<ToolItem> {
        unsafe {
            from_glib_none(ffi::gtk_tool_palette_get_drop_item(
                self.as_ref().to_glib_none().0,
                x,
                y,
            ))
        }
    }

    fn is_exclusive<P: IsA<ToolItemGroup>>(&self, group: &P) -> bool {
        unsafe {
            from_glib(ffi::gtk_tool_palette_get_exclusive(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
            ))
        }
    }

    fn expands<P: IsA<ToolItemGroup>>(&self, group: &P) -> bool {
        unsafe {
            from_glib(ffi::gtk_tool_palette_get_expand(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
            ))
        }
    }

    fn group_position<P: IsA<ToolItemGroup>>(&self, group: &P) -> i32 {
        unsafe {
            ffi::gtk_tool_palette_get_group_position(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
            )
        }
    }

    fn icon_size(&self) -> IconSize {
        unsafe {
            from_glib(ffi::gtk_tool_palette_get_icon_size(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn style(&self) -> ToolbarStyle {
        unsafe {
            from_glib(ffi::gtk_tool_palette_get_style(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn set_drag_source(&self, targets: ToolPaletteDragTargets) {
        unsafe {
            ffi::gtk_tool_palette_set_drag_source(
                self.as_ref().to_glib_none().0,
                targets.into_glib(),
            );
        }
    }

    fn set_exclusive<P: IsA<ToolItemGroup>>(&self, group: &P, exclusive: bool) {
        unsafe {
            ffi::gtk_tool_palette_set_exclusive(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
                exclusive.into_glib(),
            );
        }
    }

    fn set_expand<P: IsA<ToolItemGroup>>(&self, group: &P, expand: bool) {
        unsafe {
            ffi::gtk_tool_palette_set_expand(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
                expand.into_glib(),
            );
        }
    }

    fn set_group_position<P: IsA<ToolItemGroup>>(&self, group: &P, position: i32) {
        unsafe {
            ffi::gtk_tool_palette_set_group_position(
                self.as_ref().to_glib_none().0,
                group.as_ref().to_glib_none().0,
                position,
            );
        }
    }

    fn set_icon_size(&self, icon_size: IconSize) {
        unsafe {
            ffi::gtk_tool_palette_set_icon_size(
                self.as_ref().to_glib_none().0,
                icon_size.into_glib(),
            );
        }
    }

    fn set_style(&self, style: ToolbarStyle) {
        unsafe {
            ffi::gtk_tool_palette_set_style(self.as_ref().to_glib_none().0, style.into_glib());
        }
    }

    fn unset_icon_size(&self) {
        unsafe {
            ffi::gtk_tool_palette_unset_icon_size(self.as_ref().to_glib_none().0);
        }
    }

    fn unset_style(&self) {
        unsafe {
            ffi::gtk_tool_palette_unset_style(self.as_ref().to_glib_none().0);
        }
    }

    fn is_icon_size_set(&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"icon-size-set\0".as_ptr() as *const _,
                value.to_glib_none_mut().0,
            );
            value
                .get()
                .expect("Return Value for property `icon-size-set` getter")
        }
    }

    fn set_icon_size_set(&self, icon_size_set: bool) {
        unsafe {
            glib::gobject_ffi::g_object_set_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"icon-size-set\0".as_ptr() as *const _,
                icon_size_set.to_value().to_glib_none().0,
            );
        }
    }

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

    fn set_toolbar_style(&self, toolbar_style: ToolbarStyle) {
        unsafe {
            glib::gobject_ffi::g_object_set_property(
                self.to_glib_none().0 as *mut glib::gobject_ffi::GObject,
                b"toolbar-style\0".as_ptr() as *const _,
                toolbar_style.to_value().to_glib_none().0,
            );
        }
    }

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

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

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

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