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

use crate::{
    BackgroundPatternType, Buffer, ChangeCaseType, Completion, Gutter, MarkAttributes,
    SmartHomeEndType, SpaceDrawer,
};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem::transmute};

glib::wrapper! {
    ///
    ///
    /// ## Properties
    ///
    ///
    /// #### `auto-indent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `background-pattern`
    ///  Draw a specific background pattern on the view.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `completion`
    ///  The completion object associated with the view
    ///
    /// Readable
    ///
    ///
    /// #### `highlight-current-line`
    ///  Readable | Writeable
    ///
    ///
    /// #### `indent-on-tab`
    ///  Readable | Writeable
    ///
    ///
    /// #### `indent-width`
    ///  Width of an indentation step expressed in number of spaces.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `insert-spaces-instead-of-tabs`
    ///  Readable | Writeable
    ///
    ///
    /// #### `right-margin-position`
    ///  Position of the right margin.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `show-line-marks`
    ///  Whether to display line mark pixbufs
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `show-line-numbers`
    ///  Whether to display line numbers
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `show-right-margin`
    ///  Whether to display the right margin.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `smart-backspace`
    ///  Whether smart Backspace should be used.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `smart-home-end`
    ///  Set the behavior of the HOME and END keys.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `space-drawer`
    ///  The [`SpaceDrawer`][crate::SpaceDrawer] object associated with the view.
    ///
    /// Readable
    ///
    ///
    /// #### `tab-width`
    ///  Width of a tab character expressed in number of spaces.
    ///
    /// Readable | Writeable
    /// <details><summary><h4>TextView</h4></summary>
    ///
    ///
    /// #### `accepts-tab`
    ///  Readable | Writeable
    ///
    ///
    /// #### `bottom-margin`
    ///  The bottom margin for text in the text view.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-bottom`][struct@crate::gtk::Widget#margin-bottom].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `buffer`
    ///  Readable | Writeable
    ///
    ///
    /// #### `cursor-visible`
    ///  Readable | Writeable
    ///
    ///
    /// #### `editable`
    ///  Readable | Writeable
    ///
    ///
    /// #### `im-module`
    ///  Which IM (input method) module should be used for this text_view.
    /// See `GtkIMContext`.
    ///
    /// Setting this to a non-[`None`] value overrides the
    /// system-wide IM module setting. See the GtkSettings
    /// `GtkSettings:gtk-im-module` property.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `indent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `input-hints`
    ///  Additional hints (beyond [`input-purpose`][struct@crate::gtk::TextView#input-purpose]) that
    /// allow input methods to fine-tune their behaviour.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `input-purpose`
    ///  The purpose of this text field.
    ///
    /// This property can be used by on-screen keyboards and other input
    /// methods to adjust their behaviour.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `justification`
    ///  Readable | Writeable
    ///
    ///
    /// #### `left-margin`
    ///  The default left margin for text in the text view.
    /// Tags in the buffer may override the default.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-left`][struct@crate::gtk::Widget#margin-left].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `monospace`
    ///  Readable | Writeable
    ///
    ///
    /// #### `overwrite`
    ///  Readable | Writeable
    ///
    ///
    /// #### `pixels-above-lines`
    ///  Readable | Writeable
    ///
    ///
    /// #### `pixels-below-lines`
    ///  Readable | Writeable
    ///
    ///
    /// #### `pixels-inside-wrap`
    ///  Readable | Writeable
    ///
    ///
    /// #### `populate-all`
    ///  If :populate-all is [`true`], the [`populate-popup`][struct@crate::gtk::TextView#populate-popup]
    /// signal is also emitted for touch popups.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `right-margin`
    ///  The default right margin for text in the text view.
    /// Tags in the buffer may override the default.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-right`][struct@crate::gtk::Widget#margin-right].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tabs`
    ///  Readable | Writeable
    ///
    ///
    /// #### `top-margin`
    ///  The top margin for text in the text view.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-top`][struct@crate::gtk::Widget#margin-top].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `wrap-mode`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `border-width`
    ///  Readable | Writeable
    ///
    ///
    /// #### `child`
    ///  Writeable
    ///
    ///
    /// #### `resize-mode`
    ///  Readable | Writeable
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `app-paintable`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `can-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `composite-child`
    ///  Readable
    ///
    ///
    /// #### `double-buffered`
    ///  Whether the widget is double buffered.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `events`
    ///  Readable | Writeable
    ///
    ///
    /// #### `expand`
    ///  Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::gtk::Widget#hexpand] and [`vexpand`][struct@crate::gtk::Widget#vexpand]
    ///
    /// 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.
    ///
    /// Before 3.20, several widgets (GtkButton, GtkFileChooserButton,
    /// GtkComboBox) implemented this property individually.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `halign`
    ///  How to distribute horizontal space if widget gets extra space, see [`gtk::Align`][crate::gtk::Align]
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `has-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `has-tooltip`
    ///  Enables or disables the emission of [`query-tooltip`][struct@crate::gtk::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 [`query-tooltip`][struct@crate::gtk::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.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `height-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `hexpand`
    ///  Whether to expand horizontally. See [`WidgetExtManual::set_hexpand()`][crate::gtk::prelude::WidgetExtManual::set_hexpand()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `hexpand-set`
    ///  Whether to use the [`hexpand`][struct@crate::gtk::Widget#hexpand] property. See [`WidgetExtManual::is_hexpand_set()`][crate::gtk::prelude::WidgetExtManual::is_hexpand_set()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `is-focus`
    ///  Readable | Writeable
    ///
    ///
    /// #### `margin`
    ///  Sets all four sides' margin at once. If read, returns max
    /// margin on any side.
    ///
    /// 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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-left`
    ///  Margin on left 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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `margin-right`
    ///  Margin on right 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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `name`
    ///  Readable | Writeable
    ///
    ///
    /// #### `no-show-all`
    ///  Readable | Writeable
    ///
    ///
    /// #### `opacity`
    ///  The requested opacity of the widget. See [`WidgetExtManual::set_opacity()`][crate::gtk::prelude::WidgetExtManual::set_opacity()] for
    /// more details about window opacity.
    ///
    /// Before 3.8 this was only available in GtkWindow
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `parent`
    ///  Readable | Writeable
    ///
    ///
    /// #### `receives-default`
    ///  Readable | Writeable
    ///
    ///
    /// #### `scale-factor`
    ///  The scale factor of the widget. See [`WidgetExtManual::scale_factor()`][crate::gtk::prelude::WidgetExtManual::scale_factor()] for
    /// more details about widget scaling.
    ///
    /// Readable
    ///
    ///
    /// #### `sensitive`
    ///  Readable | Writeable
    ///
    ///
    /// #### `style`
    ///  The style of the widget, which contains information about how it will look (colors, etc).
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `tooltip-markup`
    ///  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::gtk::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::gtk::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::gtk::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::gtk::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::gtk::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::gtk::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::gtk::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::gtk::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::gtk::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::gtk::Widget#tooltip-markup]
    /// are set, the last one wins.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `valign`
    ///  How to distribute vertical space if widget gets extra space, see [`gtk::Align`][crate::gtk::Align]
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand`
    ///  Whether to expand vertically. See [`WidgetExtManual::set_vexpand()`][crate::gtk::prelude::WidgetExtManual::set_vexpand()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vexpand-set`
    ///  Whether to use the [`vexpand`][struct@crate::gtk::Widget#vexpand] property. See [`WidgetExtManual::is_vexpand_set()`][crate::gtk::prelude::WidgetExtManual::is_vexpand_set()].
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `visible`
    ///  Readable | Writeable
    ///
    ///
    /// #### `width-request`
    ///  Readable | Writeable
    ///
    ///
    /// #### `window`
    ///  The widget's window if it is realized, [`None`] otherwise.
    ///
    /// Readable
    /// </details>
    /// <details><summary><h4>Scrollable</h4></summary>
    ///
    ///
    /// #### `hadjustment`
    ///  Horizontal [`gtk::Adjustment`][crate::gtk::Adjustment] of the scrollable widget. This adjustment is
    /// shared between the scrollable widget and its parent.
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `hscroll-policy`
    ///  Determines whether horizontal scrolling should start once the scrollable
    /// widget is allocated less than its minimum width or less than its natural width.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `vadjustment`
    ///  Verical [`gtk::Adjustment`][crate::gtk::Adjustment] of the scrollable widget. This adjustment is shared
    /// between the scrollable widget and its parent.
    ///
    /// Readable | Writeable | Construct
    ///
    ///
    /// #### `vscroll-policy`
    ///  Determines whether vertical scrolling should start once the scrollable
    /// widget is allocated less than its minimum height or less than its natural height.
    ///
    /// Readable | Writeable
    /// </details>
    ///
    /// ## Signals
    ///
    ///
    /// #### `change-case`
    ///  Keybinding signal to change case of the text at the current cursor position.
    ///
    /// Action
    ///
    ///
    /// #### `change-number`
    ///  Keybinding signal to edit a number at the current cursor position.
    ///
    /// Action
    ///
    ///
    /// #### `join-lines`
    ///  Keybinding signal to join the lines currently selected.
    ///
    /// Action
    ///
    ///
    /// #### `line-mark-activated`
    ///  Emitted when a line mark has been activated (for instance when there
    /// was a button press in the line marks gutter). You can use `iter` to
    /// determine on which line the activation took place.
    ///
    ///
    ///
    ///
    /// #### `move-lines`
    ///  The ::move-lines signal is a keybinding which gets emitted
    /// when the user initiates moving a line. The default binding key
    /// is Alt+Up/Down arrow. And moves the currently selected lines,
    /// or the current line up or down by one line.
    ///
    /// Action
    ///
    ///
    /// #### `move-to-matching-bracket`
    ///  Keybinding signal to move the cursor to the matching bracket.
    ///
    /// Action
    ///
    ///
    /// #### `move-words`
    ///  The ::move-words signal is a keybinding which gets emitted
    /// when the user initiates moving a word. The default binding key
    /// is Alt+Left/Right Arrow and moves the current selection, or the current
    /// word by one word.
    ///
    /// Action
    ///
    ///
    /// #### `redo`
    ///  Action
    ///
    ///
    /// #### `show-completion`
    ///  The ::show-completion signal is a key binding signal which gets
    /// emitted when the user requests a completion, by pressing
    /// `<keycombo>``<keycap>`Control`</keycap>``<keycap>`space`</keycap>``</keycombo>`.
    ///
    /// This will create a [`CompletionContext`][crate::CompletionContext] with the activation
    /// type as [`CompletionActivation::USER_REQUESTED`][crate::CompletionActivation::USER_REQUESTED].
    ///
    /// Applications should not connect to it, but may emit it with
    /// `g_signal_emit_by_name()` if they need to activate the completion by
    /// another means, for example with another key binding or a menu entry.
    ///
    /// Action
    ///
    ///
    /// #### `smart-home-end`
    ///  Emitted when a the cursor was moved according to the smart home
    /// end setting. The signal is emitted after the cursor is moved, but
    /// during the GtkTextView::move-cursor action. This can be used to find
    /// out whether the cursor was moved by a normal home/end or by a smart
    /// home/end.
    ///
    ///
    ///
    ///
    /// #### `undo`
    ///  Action
    /// <details><summary><h4>TextView</h4></summary>
    ///
    ///
    /// #### `backspace`
    ///  The ::backspace signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user asks for it.
    ///
    /// The default bindings for this signal are
    /// Backspace and Shift-Backspace.
    ///
    /// Action
    ///
    ///
    /// #### `copy-clipboard`
    ///  The ::copy-clipboard signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to copy the selection to the clipboard.
    ///
    /// The default bindings for this signal are
    /// Ctrl-c and Ctrl-Insert.
    ///
    /// Action
    ///
    ///
    /// #### `cut-clipboard`
    ///  The ::cut-clipboard signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to cut the selection to the clipboard.
    ///
    /// The default bindings for this signal are
    /// Ctrl-x and Shift-Delete.
    ///
    /// Action
    ///
    ///
    /// #### `delete-from-cursor`
    ///  The ::delete-from-cursor signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user initiates a text deletion.
    ///
    /// If the `type_` is `GTK_DELETE_CHARS`, GTK+ deletes the selection
    /// if there is one, otherwise it deletes the requested number
    /// of characters.
    ///
    /// The default bindings for this signal are
    /// Delete for deleting a character, Ctrl-Delete for
    /// deleting a word and Ctrl-Backspace for deleting a word
    /// backwords.
    ///
    /// Action
    ///
    ///
    /// #### `extend-selection`
    ///  The ::extend-selection signal is emitted when the selection needs to be
    /// extended at `location`.
    ///
    ///
    ///
    ///
    /// #### `insert-at-cursor`
    ///  The ::insert-at-cursor signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user initiates the insertion of a
    /// fixed string at the cursor.
    ///
    /// This signal has no default bindings.
    ///
    /// Action
    ///
    ///
    /// #### `insert-emoji`
    ///  The ::insert-emoji signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to present the Emoji chooser for the `text_view`.
    ///
    /// The default bindings for this signal are Ctrl-. and Ctrl-;
    ///
    /// Action
    ///
    ///
    /// #### `move-cursor`
    ///  The ::move-cursor signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user initiates a cursor movement.
    /// If the cursor is not visible in `text_view`, this signal causes
    /// the viewport to be moved instead.
    ///
    /// 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 modifer does not.
    /// There are too many key combinations to list them all here.
    /// - Arrow keys move by individual characters/lines
    /// - Ctrl-arrow key combinations move by words/paragraphs
    /// - Home/End keys move to the ends of the buffer
    /// - PageUp/PageDown keys move vertically by pages
    /// - Ctrl-PageUp/PageDown keys move horizontally by pages
    ///
    /// Action
    ///
    ///
    /// #### `move-viewport`
    ///  The ::move-viewport signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which can be bound to key combinations to allow the user
    /// to move the viewport, i.e. change what part of the text view
    /// is visible in a containing scrolled window.
    ///
    /// There are no default bindings for this signal.
    ///
    /// Action
    ///
    ///
    /// #### `paste-clipboard`
    ///  The ::paste-clipboard signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to paste the contents of the clipboard
    /// into the text view.
    ///
    /// The default bindings for this signal are
    /// Ctrl-v and Shift-Insert.
    ///
    /// Action
    ///
    ///
    /// #### `populate-popup`
    ///  The ::populate-popup signal gets emitted before showing the
    /// context menu of the text view.
    ///
    /// If you need to add items to the context menu, connect
    /// to this signal and append your items to the `popup`, which
    /// will be a `GtkMenu` in this case.
    ///
    /// If [`populate-all`][struct@crate::gtk::TextView#populate-all] is [`true`], this signal will
    /// also be emitted to populate touch popups. In this case,
    /// `popup` will be a different container, e.g. a `GtkToolbar`.
    ///
    /// The signal handler should not make assumptions about the
    /// type of `widget`, but check whether `popup` is a `GtkMenu`
    /// or `GtkToolbar` or another kind of container.
    ///
    ///
    ///
    ///
    /// #### `preedit-changed`
    ///  If an input method is used, the typed text will not immediately
    /// be committed to the buffer. So if you are interested in the text,
    /// connect to this signal.
    ///
    /// This signal is only emitted if the text at the given position
    /// is actually editable.
    ///
    /// Action
    ///
    ///
    /// #### `select-all`
    ///  The ::select-all signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to select or unselect the complete
    /// contents of the text view.
    ///
    /// The default bindings for this signal are Ctrl-a and Ctrl-/
    /// for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.
    ///
    /// Action
    ///
    ///
    /// #### `set-anchor`
    ///  The ::set-anchor signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted when the user initiates setting the "anchor"
    /// mark. The "anchor" mark gets placed at the same position as the
    /// "insert" mark.
    ///
    /// This signal has no default bindings.
    ///
    /// Action
    ///
    ///
    /// #### `toggle-cursor-visible`
    ///  The ::toggle-cursor-visible signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to toggle the [`cursor-visible`][struct@crate::gtk::TextView#cursor-visible]
    /// property.
    ///
    /// The default binding for this signal is F7.
    ///
    /// Action
    ///
    ///
    /// #### `toggle-overwrite`
    ///  The ::toggle-overwrite signal is a
    /// [keybinding signal][GtkBindingSignal]
    /// which gets emitted to toggle the overwrite mode of the text view.
    ///
    /// The default bindings for this signal is Insert.
    ///
    /// Action
    /// </details>
    /// <details><summary><h4>Container</h4></summary>
    ///
    ///
    /// #### `add`
    ///
    ///
    ///
    /// #### `check-resize`
    ///
    ///
    ///
    /// #### `remove`
    ///
    ///
    ///
    /// #### `set-focus-child`
    ///
    /// </details>
    /// <details><summary><h4>Widget</h4></summary>
    ///
    ///
    /// #### `accel-closures-changed`
    ///
    ///
    ///
    /// #### `button-press-event`
    ///  The ::button-press-event signal will be emitted when a button
    /// (typically from a mouse) is pressed.
    ///
    /// To receive this signal, the `GdkWindow` associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_PRESS_MASK`][crate::gdk::EventMask::BUTTON_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `button-release-event`
    ///  The ::button-release-event signal will be emitted when a button
    /// (typically from a mouse) is released.
    ///
    /// To receive this signal, the `GdkWindow` associated to the
    /// widget needs to enable the [`gdk::EventMask::BUTTON_RELEASE_MASK`][crate::gdk::EventMask::BUTTON_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `can-activate-accel`
    ///  Determines whether an accelerator that activates the signal
    /// identified by `signal_id` can currently be activated.
    /// This signal is present to allow applications and derived
    /// widgets to override the default [`gtk::Widget`][crate::gtk::Widget] handling
    /// for determining whether an accelerator can be activated.
    ///
    ///
    ///
    ///
    /// #### `child-notify`
    ///  The ::child-notify signal is emitted for each
    /// [child property][child-properties] that has
    /// changed on an object. The signal's detail holds the property name.
    ///
    /// Detailed
    ///
    ///
    /// #### `composited-changed`
    ///  The ::composited-changed signal is emitted when the composited
    /// status of `widgets` screen changes.
    /// See `gdk_screen_is_composited()`.
    ///
    /// Action
    ///
    ///
    /// #### `configure-event`
    ///  The ::configure-event signal will be emitted when the size, position or
    /// stacking of the `widget`'s window has changed.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `damage-event`
    ///  Emitted when a redirected window belonging to `widget` gets drawn into.
    /// The region/area members of the event shows what area of the redirected
    /// drawable was drawn into.
    ///
    ///
    ///
    ///
    /// #### `delete-event`
    ///  The ::delete-event signal is emitted if a user requests that
    /// a toplevel window is closed. The default handler for this signal
    /// destroys the window. Connecting [`WidgetExtManual::hide_on_delete()`][crate::gtk::prelude::WidgetExtManual::hide_on_delete()] to
    /// this signal will cause the window to be hidden instead, so that
    /// it can later be shown again without reconstructing it.
    ///
    ///
    ///
    ///
    /// #### `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.
    ///
    ///
    ///
    ///
    /// #### `destroy-event`
    ///  The ::destroy-event signal is emitted when a `GdkWindow` is destroyed.
    /// You rarely get this signal, because most widgets disconnect themselves
    /// from their window before they destroy it, so no widget owns the
    /// window at destroy time.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `direction-changed`
    ///  The ::direction-changed signal is emitted when the text direction
    /// of a widget changes.
    ///
    ///
    ///
    ///
    /// #### `drag-begin`
    ///  The ::drag-begin signal is emitted on the drag source when a drag is
    /// started. A typical reason to connect to this signal is to set up a
    /// custom drag icon with e.g. [`WidgetExtManual::drag_source_set_icon_pixbuf()`][crate::gtk::prelude::WidgetExtManual::drag_source_set_icon_pixbuf()].
    ///
    /// Note that some widgets set up a drag icon in the default handler of
    /// this signal, so you may have to use `g_signal_connect_after()` to
    /// override what the default handler did.
    ///
    ///
    ///
    ///
    /// #### `drag-data-delete`
    ///  The ::drag-data-delete signal is emitted on the drag source when a drag
    /// with the action `GDK_ACTION_MOVE` is successfully completed. The signal
    /// handler is responsible for deleting the data that has been dropped. What
    /// "delete" means depends on the context of the drag operation.
    ///
    ///
    ///
    ///
    /// #### `drag-data-get`
    ///  The ::drag-data-get signal is emitted on the drag source when the drop
    /// site requests the data which is dragged. It is the responsibility of
    /// the signal handler to fill `data` with the data in the format which
    /// is indicated by `info`. See `gtk_selection_data_set()` and
    /// `gtk_selection_data_set_text()`.
    ///
    ///
    ///
    ///
    /// #### `drag-data-received`
    ///  The ::drag-data-received signal is emitted on the drop site when the
    /// dragged data has been received. If the data was received in order to
    /// determine whether the drop will be accepted, the handler is expected
    /// to call `gdk_drag_status()` and not finish the drag.
    /// If the data was received in response to a [`drag-drop`][struct@crate::gtk::Widget#drag-drop] signal
    /// (and this is the last target to be received), the handler for this
    /// signal is expected to process the received data and then call
    /// `gtk_drag_finish()`, setting the `success` parameter depending on
    /// whether the data was processed successfully.
    ///
    /// Applications must create some means to determine why the signal was emitted
    /// and therefore whether to call `gdk_drag_status()` or `gtk_drag_finish()`.
    ///
    /// The handler may inspect the selected action with
    /// `gdk_drag_context_get_selected_action()` before calling
    /// `gtk_drag_finish()`, e.g. to implement `GDK_ACTION_ASK` as
    /// shown in the following example:
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// void
    /// drag_data_received (GtkWidget          *widget,
    ///                     GdkDragContext     *context,
    ///                     gint                x,
    ///                     gint                y,
    ///                     GtkSelectionData   *data,
    ///                     guint               info,
    ///                     guint               time)
    /// {
    ///   if ((data->length >= 0) && (data->format == 8))
    ///     {
    ///       GdkDragAction action;
    ///
    ///       // handle data here
    ///
    ///       action = gdk_drag_context_get_selected_action (context);
    ///       if (action == GDK_ACTION_ASK)
    ///         {
    ///           GtkWidget *dialog;
    ///           gint response;
    ///
    ///           dialog = gtk_message_dialog_new (NULL,
    ///                                            GTK_DIALOG_MODAL |
    ///                                            GTK_DIALOG_DESTROY_WITH_PARENT,
    ///                                            GTK_MESSAGE_INFO,
    ///                                            GTK_BUTTONS_YES_NO,
    ///                                            "Move the data ?\n");
    ///           response = gtk_dialog_run (GTK_DIALOG (dialog));
    ///           gtk_widget_destroy (dialog);
    ///
    ///           if (response == GTK_RESPONSE_YES)
    ///             action = GDK_ACTION_MOVE;
    ///           else
    ///             action = GDK_ACTION_COPY;
    ///          }
    ///
    ///       gtk_drag_finish (context, TRUE, action == GDK_ACTION_MOVE, time);
    ///     }
    ///   else
    ///     gtk_drag_finish (context, FALSE, FALSE, time);
    ///  }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `drag-drop`
    ///  The ::drag-drop signal is emitted on the drop site when the user drops
    /// the data onto the widget. The signal handler must determine whether
    /// the cursor position is in a drop zone or not. If it is not in a drop
    /// zone, it returns [`false`] and no further processing is necessary.
    /// Otherwise, the handler returns [`true`]. In this case, the handler must
    /// ensure that `gtk_drag_finish()` is called to let the source know that
    /// the drop is done. The call to `gtk_drag_finish()` can be done either
    /// directly or in a [`drag-data-received`][struct@crate::gtk::Widget#drag-data-received] handler which gets
    /// triggered by calling [`WidgetExtManual::drag_get_data()`][crate::gtk::prelude::WidgetExtManual::drag_get_data()] to receive the data for one
    /// or more of the supported targets.
    ///
    ///
    ///
    ///
    /// #### `drag-end`
    ///  The ::drag-end signal is emitted on the drag source when a drag is
    /// finished. A typical reason to connect to this signal is to undo
    /// things done in [`drag-begin`][struct@crate::gtk::Widget#drag-begin].
    ///
    ///
    ///
    ///
    /// #### `drag-failed`
    ///  The ::drag-failed signal is emitted on the drag source when a drag has
    /// failed. The signal handler may hook custom code to handle a failed DnD
    /// operation based on the type of error, it returns [`true`] is the failure has
    /// been already handled (not showing the default "drag operation failed"
    /// animation), otherwise it returns [`false`].
    ///
    ///
    ///
    ///
    /// #### `drag-leave`
    ///  The ::drag-leave signal is emitted on the drop site when the cursor
    /// leaves the widget. A typical reason to connect to this signal is to
    /// undo things done in [`drag-motion`][struct@crate::gtk::Widget#drag-motion], e.g. undo highlighting
    /// with [`WidgetExtManual::drag_unhighlight()`][crate::gtk::prelude::WidgetExtManual::drag_unhighlight()].
    ///
    ///
    /// Likewise, the [`drag-leave`][struct@crate::gtk::Widget#drag-leave] signal is also emitted before the
    /// ::drag-drop signal, for instance to allow cleaning up of a preview item
    /// created in the [`drag-motion`][struct@crate::gtk::Widget#drag-motion] signal handler.
    ///
    ///
    ///
    ///
    /// #### `drag-motion`
    ///  The ::drag-motion signal is emitted on the drop site when the user
    /// moves the cursor over the widget during a drag. The signal handler
    /// must determine whether the cursor position is in a drop zone or not.
    /// If it is not in a drop zone, it returns [`false`] and no further processing
    /// is necessary. Otherwise, the handler returns [`true`]. In this case, the
    /// handler is responsible for providing the necessary information for
    /// displaying feedback to the user, by calling `gdk_drag_status()`.
    ///
    /// If the decision whether the drop will be accepted or rejected can't be
    /// made based solely on the cursor position and the type of the data, the
    /// handler may inspect the dragged data by calling [`WidgetExtManual::drag_get_data()`][crate::gtk::prelude::WidgetExtManual::drag_get_data()] and
    /// defer the `gdk_drag_status()` call to the [`drag-data-received`][struct@crate::gtk::Widget#drag-data-received]
    /// handler. Note that you must pass `GTK_DEST_DEFAULT_DROP`,
    /// `GTK_DEST_DEFAULT_MOTION` or `GTK_DEST_DEFAULT_ALL` to [`WidgetExtManual::drag_dest_set()`][crate::gtk::prelude::WidgetExtManual::drag_dest_set()]
    /// when using the drag-motion signal that way.
    ///
    /// Also note that there is no drag-enter signal. The drag receiver has to
    /// keep track of whether he has received any drag-motion signals since the
    /// last [`drag-leave`][struct@crate::gtk::Widget#drag-leave] and if not, treat the drag-motion signal as
    /// an "enter" signal. Upon an "enter", the handler will typically highlight
    /// the drop site with [`WidgetExtManual::drag_highlight()`][crate::gtk::prelude::WidgetExtManual::drag_highlight()].
    ///
    ///
    /// **⚠️ The following code is in C ⚠️**
    ///
    /// ```C
    /// static void
    /// drag_motion (GtkWidget      *widget,
    ///              GdkDragContext *context,
    ///              gint            x,
    ///              gint            y,
    ///              guint           time)
    /// {
    ///   GdkAtom target;
    ///
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (!private_data->drag_highlight)
    ///    {
    ///      private_data->drag_highlight = 1;
    ///      gtk_drag_highlight (widget);
    ///    }
    ///
    ///   target = gtk_drag_dest_find_target (widget, context, NULL);
    ///   if (target == GDK_NONE)
    ///     gdk_drag_status (context, 0, time);
    ///   else
    ///    {
    ///      private_data->pending_status
    ///         = gdk_drag_context_get_suggested_action (context);
    ///      gtk_drag_get_data (widget, context, target, time);
    ///    }
    ///
    ///   return TRUE;
    /// }
    ///
    /// static void
    /// drag_data_received (GtkWidget        *widget,
    ///                     GdkDragContext   *context,
    ///                     gint              x,
    ///                     gint              y,
    ///                     GtkSelectionData *selection_data,
    ///                     guint             info,
    ///                     guint             time)
    /// {
    ///   PrivateData *private_data = GET_PRIVATE_DATA (widget);
    ///
    ///   if (private_data->suggested_action)
    ///    {
    ///      private_data->suggested_action = 0;
    ///
    ///      // We are getting this data due to a request in drag_motion,
    ///      // rather than due to a request in drag_drop, so we are just
    ///      // supposed to call gdk_drag_status(), not actually paste in
    ///      // the data.
    ///
    ///      str = gtk_selection_data_get_text (selection_data);
    ///      if (!data_is_acceptable (str))
    ///        gdk_drag_status (context, 0, time);
    ///      else
    ///        gdk_drag_status (context,
    ///                         private_data->suggested_action,
    ///                         time);
    ///    }
    ///   else
    ///    {
    ///      // accept the drop
    ///    }
    /// }
    /// ```
    ///
    ///
    ///
    ///
    /// #### `draw`
    ///  This signal is emitted when a widget is supposed to render itself.
    /// The `widget`'s top left corner must be painted at the origin of
    /// the passed in context and be sized to the values returned by
    /// [`WidgetExtManual::allocated_width()`][crate::gtk::prelude::WidgetExtManual::allocated_width()] and
    /// [`WidgetExtManual::allocated_height()`][crate::gtk::prelude::WidgetExtManual::allocated_height()].
    ///
    /// Signal handlers connected to this signal can modify the cairo
    /// context passed as `cr` in any way they like and don't need to
    /// restore it. The signal emission takes care of calling `cairo_save()`
    /// before and `cairo_restore()` after invoking the handler.
    ///
    /// The signal handler will get a `cr` with a clip region already set to the
    /// widget's dirty region, i.e. to the area that needs repainting. Complicated
    /// widgets that want to avoid redrawing themselves completely can get the full
    /// extents of the clip region with `gdk_cairo_get_clip_rectangle()`, or they can
    /// get a finer-grained representation of the dirty region with
    /// `cairo_copy_clip_rectangle_list()`.
    ///
    ///
    ///
    ///
    /// #### `enter-notify-event`
    ///  The ::enter-notify-event will be emitted when the pointer enters
    /// the `widget`'s window.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::ENTER_NOTIFY_MASK`][crate::gdk::EventMask::ENTER_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `event`
    ///  The GTK+ main loop will emit three signals for each GDK event delivered
    /// to a widget: one generic ::event signal, another, more specific,
    /// signal that matches the type of event delivered (e.g.
    /// [`key-press-event`][struct@crate::gtk::Widget#key-press-event]) and finally a generic
    /// [`event-after`][struct@crate::gtk::Widget#event-after] signal.
    ///
    ///
    ///
    ///
    /// #### `event-after`
    ///  After the emission of the [`event`][struct@crate::gtk::Widget#event] signal and (optionally)
    /// the second more specific signal, ::event-after will be emitted
    /// regardless of the previous two signals handlers return values.
    ///
    ///
    ///
    ///
    /// #### `focus`
    ///
    ///
    ///
    /// #### `focus-in-event`
    ///  The ::focus-in-event signal will be emitted when the keyboard focus
    /// enters the `widget`'s window.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `focus-out-event`
    ///  The ::focus-out-event signal will be emitted when the keyboard focus
    /// leaves the `widget`'s window.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::FOCUS_CHANGE_MASK`][crate::gdk::EventMask::FOCUS_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `grab-broken-event`
    ///  Emitted when a pointer or keyboard grab on a window belonging
    /// to `widget` gets broken.
    ///
    /// On X11, this happens when the grab window becomes unviewable
    /// (i.e. it or one of its ancestors is unmapped), or if the same
    /// application grabs the pointer or keyboard again.
    ///
    ///
    ///
    ///
    /// #### `grab-focus`
    ///  Action
    ///
    ///
    /// #### `grab-notify`
    ///  The ::grab-notify signal is emitted when a widget becomes
    /// shadowed by a GTK+ grab (not a pointer or keyboard grab) on
    /// another widget, or when it becomes unshadowed due to a grab
    /// being removed.
    ///
    /// A widget is shadowed by a [`WidgetExtManual::grab_add()`][crate::gtk::prelude::WidgetExtManual::grab_add()] when the topmost
    /// grab widget in the grab stack of its window group is not
    /// its ancestor.
    ///
    ///
    ///
    ///
    /// #### `hide`
    ///  The ::hide signal is emitted when `widget` is hidden, for example with
    /// [`WidgetExtManual::hide()`][crate::gtk::prelude::WidgetExtManual::hide()].
    ///
    ///
    ///
    ///
    /// #### `hierarchy-changed`
    ///  The ::hierarchy-changed signal is emitted when the
    /// anchored state of a widget changes. A widget is
    /// “anchored” when its toplevel
    /// ancestor is a [`gtk::Window`][crate::gtk::Window]. This signal is emitted when
    /// a widget changes from un-anchored to anchored or vice-versa.
    ///
    ///
    ///
    ///
    /// #### `key-press-event`
    ///  The ::key-press-event signal is emitted when a key is pressed. The signal
    /// emission will reoccur at the key-repeat rate when the key is kept pressed.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_PRESS_MASK`][crate::gdk::EventMask::KEY_PRESS_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `key-release-event`
    ///  The ::key-release-event signal is emitted when a key is released.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::KEY_RELEASE_MASK`][crate::gdk::EventMask::KEY_RELEASE_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `keynav-failed`
    ///  Gets emitted if keyboard navigation fails.
    /// See [`WidgetExtManual::keynav_failed()`][crate::gtk::prelude::WidgetExtManual::keynav_failed()] for details.
    ///
    ///
    ///
    ///
    /// #### `leave-notify-event`
    ///  The ::leave-notify-event will be emitted when the pointer leaves
    /// the `widget`'s window.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::LEAVE_NOTIFY_MASK`][crate::gdk::EventMask::LEAVE_NOTIFY_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `map`
    ///  The ::map signal is emitted when `widget` is going to be mapped, that is
    /// when the widget is visible (which is controlled with
    /// [`WidgetExtManual::set_visible()`][crate::gtk::prelude::WidgetExtManual::set_visible()]) and all its parents up to the toplevel widget
    /// are also visible. Once the map has occurred, [`map-event`][struct@crate::gtk::Widget#map-event] will
    /// be emitted.
    ///
    /// 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::gtk::Widget#unmap].
    ///
    ///
    ///
    ///
    /// #### `map-event`
    ///  The ::map-event signal will be emitted when the `widget`'s window is
    /// mapped. A window is mapped when it becomes visible on the screen.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `mnemonic-activate`
    ///  The default handler for this signal activates `widget` if `group_cycling`
    /// is [`false`], or just makes `widget` grab focus if `group_cycling` is [`true`].
    ///
    ///
    ///
    ///
    /// #### `motion-notify-event`
    ///  The ::motion-notify-event signal is emitted when the pointer moves
    /// over the widget's `GdkWindow`.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget
    /// needs to enable the [`gdk::EventMask::POINTER_MOTION_MASK`][crate::gdk::EventMask::POINTER_MOTION_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `move-focus`
    ///  Action
    ///
    ///
    /// #### `parent-set`
    ///  The ::parent-set signal is emitted when a new parent
    /// has been set on a widget.
    ///
    ///
    ///
    ///
    /// #### `popup-menu`
    ///  This signal gets emitted whenever a widget should pop up a context
    /// menu. This usually happens through the standard key binding mechanism;
    /// by pressing a certain key while a widget is focused, the user can cause
    /// the widget to pop up a menu. For example, the `GtkEntry` widget creates
    /// a menu with clipboard commands. See the
    /// [Popup Menu Migration Checklist][checklist-popup-menu]
    /// for an example of how to use this signal.
    ///
    /// Action
    ///
    ///
    /// #### `property-notify-event`
    ///  The ::property-notify-event signal will be emitted when a property on
    /// the `widget`'s window has been changed or deleted.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::PROPERTY_CHANGE_MASK`][crate::gdk::EventMask::PROPERTY_CHANGE_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `proximity-in-event`
    ///  To receive this signal the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_IN_MASK`][crate::gdk::EventMask::PROXIMITY_IN_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `proximity-out-event`
    ///  To receive this signal the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::PROXIMITY_OUT_MASK`][crate::gdk::EventMask::PROXIMITY_OUT_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `query-tooltip`
    ///  Emitted when [`has-tooltip`][struct@crate::gtk::Widget#has-tooltip] 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`
    ///  The ::realize signal is emitted when `widget` is associated with a
    /// `GdkWindow`, which means that [`WidgetExtManual::realize()`][crate::gtk::prelude::WidgetExtManual::realize()] has been called or the
    /// widget has been mapped (that is, it is going to be drawn).
    ///
    ///
    ///
    ///
    /// #### `screen-changed`
    ///  The ::screen-changed signal gets emitted when the
    /// screen of a widget has changed.
    ///
    ///
    ///
    ///
    /// #### `scroll-event`
    ///  The ::scroll-event signal is emitted when a button in the 4 to 7
    /// range is pressed. Wheel mice are usually configured to generate
    /// button press events for buttons 4 and 5 when the wheel is turned.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::SCROLL_MASK`][crate::gdk::EventMask::SCROLL_MASK] mask.
    ///
    /// This signal will be sent to the grab widget if there is one.
    ///
    ///
    ///
    ///
    /// #### `selection-clear-event`
    ///  The ::selection-clear-event signal will be emitted when the
    /// the `widget`'s window has lost ownership of a selection.
    ///
    ///
    ///
    ///
    /// #### `selection-get`
    ///
    ///
    ///
    /// #### `selection-notify-event`
    ///
    ///
    ///
    /// #### `selection-received`
    ///
    ///
    ///
    /// #### `selection-request-event`
    ///  The ::selection-request-event signal will be emitted when
    /// another client requests ownership of the selection owned by
    /// the `widget`'s window.
    ///
    ///
    ///
    ///
    /// #### `show`
    ///  The ::show signal is emitted when `widget` is shown, for example with
    /// [`WidgetExtManual::show()`][crate::gtk::prelude::WidgetExtManual::show()].
    ///
    ///
    ///
    ///
    /// #### `show-help`
    ///  Action
    ///
    ///
    /// #### `size-allocate`
    ///
    ///
    ///
    /// #### `state-changed`
    ///  The ::state-changed signal is emitted when the widget state changes.
    /// See `gtk_widget_get_state()`.
    ///
    ///
    ///
    ///
    /// #### `state-flags-changed`
    ///  The ::state-flags-changed signal is emitted when the widget state
    /// changes, see [`WidgetExtManual::state_flags()`][crate::gtk::prelude::WidgetExtManual::state_flags()].
    ///
    ///
    ///
    ///
    /// #### `style-set`
    ///  The ::style-set signal is emitted when a new style has been set
    /// on a widget. Note that style-modifying functions like
    /// `gtk_widget_modify_base()` also cause this signal to be emitted.
    ///
    /// Note that this signal is emitted for changes to the deprecated
    /// `GtkStyle`. To track changes to the `GtkStyleContext` associated
    /// with a widget, use the [`style-updated`][struct@crate::gtk::Widget#style-updated] signal.
    ///
    ///
    ///
    ///
    /// #### `style-updated`
    ///  The ::style-updated signal is a convenience signal that is emitted when the
    /// `GtkStyleContext::changed` signal is emitted on the `widget`'s associated
    /// `GtkStyleContext` as returned by [`WidgetExtManual::style_context()`][crate::gtk::prelude::WidgetExtManual::style_context()].
    ///
    /// Note that style-modifying functions like `gtk_widget_override_color()` also
    /// cause this signal to be emitted.
    ///
    ///
    ///
    ///
    /// #### `touch-event`
    ///
    ///
    ///
    /// #### `unmap`
    ///  The ::unmap signal is emitted when `widget` is going to be unmapped, which
    /// means that 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.
    ///
    ///
    ///
    ///
    /// #### `unmap-event`
    ///  The ::unmap-event signal will be emitted when the `widget`'s window is
    /// unmapped. A window is unmapped when it becomes invisible on the screen.
    ///
    /// To receive this signal, the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable this mask
    /// automatically for all new windows.
    ///
    ///
    ///
    ///
    /// #### `unrealize`
    ///  The ::unrealize signal is emitted when the `GdkWindow` associated with
    /// `widget` is destroyed, which means that [`WidgetExtManual::unrealize()`][crate::gtk::prelude::WidgetExtManual::unrealize()] has been
    /// called or the widget has been unmapped (that is, it is going to be
    /// hidden).
    ///
    ///
    ///
    ///
    /// #### `visibility-notify-event`
    ///  The ::visibility-notify-event will be emitted when the `widget`'s
    /// window is obscured or unobscured.
    ///
    /// To receive this signal the `GdkWindow` associated to the widget needs
    /// to enable the [`gdk::EventMask::VISIBILITY_NOTIFY_MASK`][crate::gdk::EventMask::VISIBILITY_NOTIFY_MASK] mask.
    ///
    ///
    ///
    ///
    /// #### `window-state-event`
    ///  The ::window-state-event will be emitted when the state of the
    /// toplevel window associated to the `widget` changes.
    ///
    /// To receive this signal the `GdkWindow` associated to the widget
    /// needs to enable the [`gdk::EventMask::STRUCTURE_MASK`][crate::gdk::EventMask::STRUCTURE_MASK] mask. GDK will enable
    /// this mask automatically for all new windows.
    ///
    ///
    /// </details>
    ///
    /// # Implements
    ///
    /// [`ViewExt`][trait@crate::prelude::ViewExt], [`trait@gtk::prelude::TextViewExt`], [`trait@gtk::prelude::ContainerExt`], [`trait@gtk::prelude::WidgetExt`], [`trait@gtk::prelude::BuildableExt`], [`trait@gtk::prelude::ScrollableExt`]
    #[doc(alias = "GtkSourceView")]
    pub struct View(Object<ffi::GtkSourceView, ffi::GtkSourceViewClass>) @extends gtk::TextView, gtk::Container, gtk::Widget, @implements gtk::Buildable, gtk::Scrollable;

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

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

    /// Creates a new [`View`][crate::View].
    ///
    /// By default, an empty [`Buffer`][crate::Buffer] will be lazily created and can be
    /// retrieved with [`TextViewExtManual::buffer()`][crate::gtk::prelude::TextViewExtManual::buffer()].
    ///
    /// If you want to specify your own buffer, either override the
    /// `GtkTextViewClass` create_buffer factory method, or use
    /// [`with_buffer()`][Self::with_buffer()].
    ///
    /// # Returns
    ///
    /// a new [`View`][crate::View].
    #[doc(alias = "gtk_source_view_new")]
    pub fn new() -> View {
        assert_initialized_main_thread!();
        unsafe { gtk::Widget::from_glib_none(ffi::gtk_source_view_new()).unsafe_cast() }
    }

    /// Creates a new [`View`][crate::View] widget displaying the buffer
    /// `buffer`. One buffer can be shared among many widgets.
    /// ## `buffer`
    /// a [`Buffer`][crate::Buffer].
    ///
    /// # Returns
    ///
    /// a new [`View`][crate::View].
    #[doc(alias = "gtk_source_view_new_with_buffer")]
    #[doc(alias = "new_with_buffer")]
    pub fn with_buffer(buffer: &impl IsA<Buffer>) -> View {
        skip_assert_initialized!();
        unsafe {
            gtk::Widget::from_glib_none(ffi::gtk_source_view_new_with_buffer(
                buffer.as_ref().to_glib_none().0,
            ))
            .unsafe_cast()
        }
    }

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

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

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

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

    pub fn auto_indent(self, auto_indent: bool) -> Self {
        Self {
            builder: self.builder.property("auto-indent", auto_indent),
        }
    }

    /// Draw a specific background pattern on the view.
    pub fn background_pattern(self, background_pattern: BackgroundPatternType) -> Self {
        Self {
            builder: self
                .builder
                .property("background-pattern", background_pattern),
        }
    }

    pub fn highlight_current_line(self, highlight_current_line: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("highlight-current-line", highlight_current_line),
        }
    }

    pub fn indent_on_tab(self, indent_on_tab: bool) -> Self {
        Self {
            builder: self.builder.property("indent-on-tab", indent_on_tab),
        }
    }

    /// Width of an indentation step expressed in number of spaces.
    pub fn indent_width(self, indent_width: i32) -> Self {
        Self {
            builder: self.builder.property("indent-width", indent_width),
        }
    }

    pub fn insert_spaces_instead_of_tabs(self, insert_spaces_instead_of_tabs: bool) -> Self {
        Self {
            builder: self.builder.property(
                "insert-spaces-instead-of-tabs",
                insert_spaces_instead_of_tabs,
            ),
        }
    }

    /// Position of the right margin.
    pub fn right_margin_position(self, right_margin_position: u32) -> Self {
        Self {
            builder: self
                .builder
                .property("right-margin-position", right_margin_position),
        }
    }

    /// Whether to display line mark pixbufs
    pub fn show_line_marks(self, show_line_marks: bool) -> Self {
        Self {
            builder: self.builder.property("show-line-marks", show_line_marks),
        }
    }

    /// Whether to display line numbers
    pub fn show_line_numbers(self, show_line_numbers: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("show-line-numbers", show_line_numbers),
        }
    }

    /// Whether to display the right margin.
    pub fn show_right_margin(self, show_right_margin: bool) -> Self {
        Self {
            builder: self
                .builder
                .property("show-right-margin", show_right_margin),
        }
    }

    /// Whether smart Backspace should be used.
    pub fn smart_backspace(self, smart_backspace: bool) -> Self {
        Self {
            builder: self.builder.property("smart-backspace", smart_backspace),
        }
    }

    /// Set the behavior of the HOME and END keys.
    pub fn smart_home_end(self, smart_home_end: SmartHomeEndType) -> Self {
        Self {
            builder: self.builder.property("smart-home-end", smart_home_end),
        }
    }

    /// Width of a tab character expressed in number of spaces.
    pub fn tab_width(self, tab_width: u32) -> Self {
        Self {
            builder: self.builder.property("tab-width", tab_width),
        }
    }

    pub fn accepts_tab(self, accepts_tab: bool) -> Self {
        Self {
            builder: self.builder.property("accepts-tab", accepts_tab),
        }
    }

    /// The bottom margin for text in the text view.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-bottom`][struct@crate::gtk::Widget#margin-bottom].
    pub fn bottom_margin(self, bottom_margin: i32) -> Self {
        Self {
            builder: self.builder.property("bottom-margin", bottom_margin),
        }
    }

    pub fn buffer(self, buffer: &impl IsA<gtk::TextBuffer>) -> Self {
        Self {
            builder: self.builder.property("buffer", buffer.clone().upcast()),
        }
    }

    pub fn cursor_visible(self, cursor_visible: bool) -> Self {
        Self {
            builder: self.builder.property("cursor-visible", cursor_visible),
        }
    }

    pub fn editable(self, editable: bool) -> Self {
        Self {
            builder: self.builder.property("editable", editable),
        }
    }

    /// Which IM (input method) module should be used for this text_view.
    /// See `GtkIMContext`.
    ///
    /// Setting this to a non-[`None`] value overrides the
    /// system-wide IM module setting. See the GtkSettings
    /// `GtkSettings:gtk-im-module` property.
    pub fn im_module(self, im_module: impl Into<glib::GString>) -> Self {
        Self {
            builder: self.builder.property("im-module", im_module.into()),
        }
    }

    pub fn indent(self, indent: i32) -> Self {
        Self {
            builder: self.builder.property("indent", indent),
        }
    }

    /// Additional hints (beyond [`input-purpose`][struct@crate::gtk::TextView#input-purpose]) that
    /// allow input methods to fine-tune their behaviour.
    pub fn input_hints(self, input_hints: gtk::InputHints) -> Self {
        Self {
            builder: self.builder.property("input-hints", input_hints),
        }
    }

    /// The purpose of this text field.
    ///
    /// This property can be used by on-screen keyboards and other input
    /// methods to adjust their behaviour.
    pub fn input_purpose(self, input_purpose: gtk::InputPurpose) -> Self {
        Self {
            builder: self.builder.property("input-purpose", input_purpose),
        }
    }

    pub fn justification(self, justification: gtk::Justification) -> Self {
        Self {
            builder: self.builder.property("justification", justification),
        }
    }

    /// The default left margin for text in the text view.
    /// Tags in the buffer may override the default.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-left`][struct@crate::gtk::Widget#margin-left].
    pub fn left_margin(self, left_margin: i32) -> Self {
        Self {
            builder: self.builder.property("left-margin", left_margin),
        }
    }

    pub fn monospace(self, monospace: bool) -> Self {
        Self {
            builder: self.builder.property("monospace", monospace),
        }
    }

    pub fn overwrite(self, overwrite: bool) -> Self {
        Self {
            builder: self.builder.property("overwrite", overwrite),
        }
    }

    pub fn pixels_above_lines(self, pixels_above_lines: i32) -> Self {
        Self {
            builder: self
                .builder
                .property("pixels-above-lines", pixels_above_lines),
        }
    }

    pub fn pixels_below_lines(self, pixels_below_lines: i32) -> Self {
        Self {
            builder: self
                .builder
                .property("pixels-below-lines", pixels_below_lines),
        }
    }

    pub fn pixels_inside_wrap(self, pixels_inside_wrap: i32) -> Self {
        Self {
            builder: self
                .builder
                .property("pixels-inside-wrap", pixels_inside_wrap),
        }
    }

    /// If :populate-all is [`true`], the [`populate-popup`][struct@crate::gtk::TextView#populate-popup]
    /// signal is also emitted for touch popups.
    pub fn populate_all(self, populate_all: bool) -> Self {
        Self {
            builder: self.builder.property("populate-all", populate_all),
        }
    }

    /// The default right margin for text in the text view.
    /// Tags in the buffer may override the default.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-right`][struct@crate::gtk::Widget#margin-right].
    pub fn right_margin(self, right_margin: i32) -> Self {
        Self {
            builder: self.builder.property("right-margin", right_margin),
        }
    }

    pub fn tabs(self, tabs: &pango::TabArray) -> Self {
        Self {
            builder: self.builder.property("tabs", tabs),
        }
    }

    /// The top margin for text in the text view.
    ///
    /// Note that this property is confusingly named. In CSS terms,
    /// the value set here is padding, and it is applied in addition
    /// to the padding from the theme.
    ///
    /// Don't confuse this property with [`margin-top`][struct@crate::gtk::Widget#margin-top].
    pub fn top_margin(self, top_margin: i32) -> Self {
        Self {
            builder: self.builder.property("top-margin", top_margin),
        }
    }

    pub fn wrap_mode(self, wrap_mode: gtk::WrapMode) -> Self {
        Self {
            builder: self.builder.property("wrap-mode", wrap_mode),
        }
    }

    pub fn border_width(self, border_width: u32) -> Self {
        Self {
            builder: self.builder.property("border-width", border_width),
        }
    }

    pub fn child(self, child: &impl IsA<gtk::Widget>) -> Self {
        Self {
            builder: self.builder.property("child", child.clone().upcast()),
        }
    }

    pub fn resize_mode(self, resize_mode: gtk::ResizeMode) -> Self {
        Self {
            builder: self.builder.property("resize-mode", resize_mode),
        }
    }

    pub fn app_paintable(self, app_paintable: bool) -> Self {
        Self {
            builder: self.builder.property("app-paintable", app_paintable),
        }
    }

    pub fn can_default(self, can_default: bool) -> Self {
        Self {
            builder: self.builder.property("can-default", can_default),
        }
    }

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

    pub fn events(self, events: gdk::EventMask) -> Self {
        Self {
            builder: self.builder.property("events", events),
        }
    }

    /// Whether to expand in both directions. Setting this sets both [`hexpand`][struct@crate::gtk::Widget#hexpand] and [`vexpand`][struct@crate::gtk::Widget#vexpand]
    pub fn expand(self, expand: bool) -> Self {
        Self {
            builder: self.builder.property("expand", expand),
        }
    }

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

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

    pub fn has_default(self, has_default: bool) -> Self {
        Self {
            builder: self.builder.property("has-default", has_default),
        }
    }

    pub fn has_focus(self, has_focus: bool) -> Self {
        Self {
            builder: self.builder.property("has-focus", has_focus),
        }
    }

    /// Enables or disables the emission of [`query-tooltip`][struct@crate::gtk::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 [`query-tooltip`][struct@crate::gtk::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(self, has_tooltip: bool) -> Self {
        Self {
            builder: self.builder.property("has-tooltip", has_tooltip),
        }
    }

    pub fn height_request(self, height_request: i32) -> Self {
        Self {
            builder: self.builder.property("height-request", height_request),
        }
    }

    /// Whether to expand horizontally. See [`WidgetExtManual::set_hexpand()`][crate::gtk::prelude::WidgetExtManual::set_hexpand()].
    pub fn hexpand(self, hexpand: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand", hexpand),
        }
    }

    /// Whether to use the [`hexpand`][struct@crate::gtk::Widget#hexpand] property. See [`WidgetExtManual::is_hexpand_set()`][crate::gtk::prelude::WidgetExtManual::is_hexpand_set()].
    pub fn hexpand_set(self, hexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("hexpand-set", hexpand_set),
        }
    }

    pub fn is_focus(self, is_focus: bool) -> Self {
        Self {
            builder: self.builder.property("is-focus", is_focus),
        }
    }

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

    /// 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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::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
    /// [`WidgetExtManual::set_size_request()`][crate::gtk::prelude::WidgetExtManual::set_size_request()] for example.
    pub fn margin_top(self, margin_top: i32) -> Self {
        Self {
            builder: self.builder.property("margin-top", margin_top),
        }
    }

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

    pub fn no_show_all(self, no_show_all: bool) -> Self {
        Self {
            builder: self.builder.property("no-show-all", no_show_all),
        }
    }

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

    pub fn parent(self, parent: &impl IsA<gtk::Container>) -> Self {
        Self {
            builder: self.builder.property("parent", parent.clone().upcast()),
        }
    }

    pub fn receives_default(self, receives_default: bool) -> Self {
        Self {
            builder: self.builder.property("receives-default", receives_default),
        }
    }

    pub fn sensitive(self, sensitive: bool) -> Self {
        Self {
            builder: self.builder.property("sensitive", sensitive),
        }
    }

    //pub fn style(self, style: &impl IsA</*Ignored*/gtk::Style>) -> Self {
    //    Self { builder: self.builder.property("style", style.clone().upcast()), }
    //}

    /// 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::gtk::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::gtk::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::gtk::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::gtk::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::gtk::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::gtk::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::gtk::Widget#has-tooltip]
    /// will automatically be set to [`true`] and there will be taken care of
    /// [`query-tooltip`][struct@crate::gtk::Widget#query-tooltip] in the default signal handler.
    ///
    /// Note that if both [`tooltip-text`][struct@crate::gtk::Widget#tooltip-text] and [`tooltip-markup`][struct@crate::gtk::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, see [`gtk::Align`][crate::gtk::Align]
    pub fn valign(self, valign: gtk::Align) -> Self {
        Self {
            builder: self.builder.property("valign", valign),
        }
    }

    /// Whether to expand vertically. See [`WidgetExtManual::set_vexpand()`][crate::gtk::prelude::WidgetExtManual::set_vexpand()].
    pub fn vexpand(self, vexpand: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand", vexpand),
        }
    }

    /// Whether to use the [`vexpand`][struct@crate::gtk::Widget#vexpand] property. See [`WidgetExtManual::is_vexpand_set()`][crate::gtk::prelude::WidgetExtManual::is_vexpand_set()].
    pub fn vexpand_set(self, vexpand_set: bool) -> Self {
        Self {
            builder: self.builder.property("vexpand-set", vexpand_set),
        }
    }

    pub fn visible(self, visible: bool) -> Self {
        Self {
            builder: self.builder.property("visible", visible),
        }
    }

    pub fn width_request(self, width_request: i32) -> Self {
        Self {
            builder: self.builder.property("width-request", width_request),
        }
    }

    /// Horizontal [`gtk::Adjustment`][crate::gtk::Adjustment] of the scrollable widget. This adjustment is
    /// shared between the scrollable widget and its parent.
    pub fn hadjustment(self, hadjustment: &impl IsA<gtk::Adjustment>) -> Self {
        Self {
            builder: self
                .builder
                .property("hadjustment", hadjustment.clone().upcast()),
        }
    }

    /// 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(self, hscroll_policy: gtk::ScrollablePolicy) -> Self {
        Self {
            builder: self.builder.property("hscroll-policy", hscroll_policy),
        }
    }

    /// Verical [`gtk::Adjustment`][crate::gtk::Adjustment] of the scrollable widget. This adjustment is shared
    /// between the scrollable widget and its parent.
    pub fn vadjustment(self, vadjustment: &impl IsA<gtk::Adjustment>) -> Self {
        Self {
            builder: self
                .builder
                .property("vadjustment", vadjustment.clone().upcast()),
        }
    }

    /// 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(self, vscroll_policy: gtk::ScrollablePolicy) -> Self {
        Self {
            builder: self.builder.property("vscroll-policy", vscroll_policy),
        }
    }

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

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::View>> Sealed for T {}
}

/// Trait containing all [`struct@View`] methods.
///
/// # Implementors
///
/// [`Map`][struct@crate::Map], [`View`][struct@crate::View]
pub trait ViewExt: IsA<View> + sealed::Sealed + 'static {
    /// Returns whether auto-indentation of text is enabled.
    ///
    /// # Returns
    ///
    /// [`true`] if auto indentation is enabled.
    #[doc(alias = "gtk_source_view_get_auto_indent")]
    #[doc(alias = "get_auto_indent")]
    fn is_auto_indent(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_auto_indent(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the [`BackgroundPatternType`][crate::BackgroundPatternType] specifying if and how
    /// the background pattern should be displayed for this `self`.
    ///
    /// # Returns
    ///
    /// the [`BackgroundPatternType`][crate::BackgroundPatternType].
    #[doc(alias = "gtk_source_view_get_background_pattern")]
    #[doc(alias = "get_background_pattern")]
    fn background_pattern(&self) -> BackgroundPatternType {
        unsafe {
            from_glib(ffi::gtk_source_view_get_background_pattern(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the [`Completion`][crate::Completion] associated with `self`. The returned object is
    /// guaranteed to be the same for the lifetime of `self`. Each [`View`][crate::View]
    /// object has a different [`Completion`][crate::Completion].
    ///
    /// # Returns
    ///
    /// the [`Completion`][crate::Completion] associated with `self`.
    #[doc(alias = "gtk_source_view_get_completion")]
    #[doc(alias = "get_completion")]
    fn completion(&self) -> Option<Completion> {
        unsafe {
            from_glib_none(ffi::gtk_source_view_get_completion(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the [`Gutter`][crate::Gutter] object associated with `window_type` for `self`.
    /// Only GTK_TEXT_WINDOW_LEFT and GTK_TEXT_WINDOW_RIGHT are supported,
    /// respectively corresponding to the left and right gutter. The line numbers
    /// and mark category icons are rendered in the left gutter.
    /// ## `window_type`
    /// the gutter window type.
    ///
    /// # Returns
    ///
    /// the [`Gutter`][crate::Gutter].
    #[doc(alias = "gtk_source_view_get_gutter")]
    #[doc(alias = "get_gutter")]
    fn gutter(&self, window_type: gtk::TextWindowType) -> Option<Gutter> {
        unsafe {
            from_glib_none(ffi::gtk_source_view_get_gutter(
                self.as_ref().to_glib_none().0,
                window_type.into_glib(),
            ))
        }
    }

    /// Returns whether the current line is highlighted.
    ///
    /// # Returns
    ///
    /// [`true`] if the current line is highlighted.
    #[doc(alias = "gtk_source_view_get_highlight_current_line")]
    #[doc(alias = "get_highlight_current_line")]
    fn is_highlight_current_line(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_highlight_current_line(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns whether when the tab key is pressed the current selection
    /// should get indented instead of replaced with the \t character.
    ///
    /// # Returns
    ///
    /// [`true`] if the selection is indented when tab is pressed.
    #[doc(alias = "gtk_source_view_get_indent_on_tab")]
    #[doc(alias = "get_indent_on_tab")]
    fn is_indent_on_tab(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_indent_on_tab(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the number of spaces to use for each step of indent.
    /// See [`set_indent_width()`][Self::set_indent_width()] for details.
    ///
    /// # Returns
    ///
    /// indent width.
    #[doc(alias = "gtk_source_view_get_indent_width")]
    #[doc(alias = "get_indent_width")]
    fn indent_width(&self) -> i32 {
        unsafe { ffi::gtk_source_view_get_indent_width(self.as_ref().to_glib_none().0) }
    }

    /// Returns whether when inserting a tabulator character it should
    /// be replaced by a group of space characters.
    ///
    /// # Returns
    ///
    /// [`true`] if spaces are inserted instead of tabs.
    #[doc(alias = "gtk_source_view_get_insert_spaces_instead_of_tabs")]
    #[doc(alias = "get_insert_spaces_instead_of_tabs")]
    fn is_insert_spaces_instead_of_tabs(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_insert_spaces_instead_of_tabs(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the position of the right margin in the given `self`.
    ///
    /// # Returns
    ///
    /// the position of the right margin.
    #[doc(alias = "gtk_source_view_get_right_margin_position")]
    #[doc(alias = "get_right_margin_position")]
    fn right_margin_position(&self) -> u32 {
        unsafe { ffi::gtk_source_view_get_right_margin_position(self.as_ref().to_glib_none().0) }
    }

    /// Returns whether line marks are displayed beside the text.
    ///
    /// # Returns
    ///
    /// [`true`] if the line marks are displayed.
    #[doc(alias = "gtk_source_view_get_show_line_marks")]
    #[doc(alias = "get_show_line_marks")]
    fn shows_line_marks(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_show_line_marks(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns whether line numbers are displayed beside the text.
    ///
    /// # Returns
    ///
    /// [`true`] if the line numbers are displayed.
    #[doc(alias = "gtk_source_view_get_show_line_numbers")]
    #[doc(alias = "get_show_line_numbers")]
    fn shows_line_numbers(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_show_line_numbers(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns whether a right margin is displayed.
    ///
    /// # Returns
    ///
    /// [`true`] if the right margin is shown.
    #[doc(alias = "gtk_source_view_get_show_right_margin")]
    #[doc(alias = "get_show_right_margin")]
    fn shows_right_margin(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_show_right_margin(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns [`true`] if pressing the Backspace key will try to delete spaces
    /// up to the previous tab stop.
    ///
    /// # Returns
    ///
    /// [`true`] if smart Backspace handling is enabled.
    #[doc(alias = "gtk_source_view_get_smart_backspace")]
    #[doc(alias = "get_smart_backspace")]
    fn is_smart_backspace(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_source_view_get_smart_backspace(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns a [`SmartHomeEndType`][crate::SmartHomeEndType] end value specifying
    /// how the cursor will move when HOME and END keys are pressed.
    ///
    /// # Returns
    ///
    /// a [`SmartHomeEndType`][crate::SmartHomeEndType] value.
    #[doc(alias = "gtk_source_view_get_smart_home_end")]
    #[doc(alias = "get_smart_home_end")]
    fn smart_home_end(&self) -> SmartHomeEndType {
        unsafe {
            from_glib(ffi::gtk_source_view_get_smart_home_end(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the [`SpaceDrawer`][crate::SpaceDrawer] associated with `self`. The returned object is
    /// guaranteed to be the same for the lifetime of `self`. Each [`View`][crate::View]
    /// object has a different [`SpaceDrawer`][crate::SpaceDrawer].
    ///
    /// # Returns
    ///
    /// the [`SpaceDrawer`][crate::SpaceDrawer] associated with `self`.
    #[doc(alias = "gtk_source_view_get_space_drawer")]
    #[doc(alias = "get_space_drawer")]
    fn space_drawer(&self) -> Option<SpaceDrawer> {
        unsafe {
            from_glib_none(ffi::gtk_source_view_get_space_drawer(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the width of tabulation in characters.
    ///
    /// # Returns
    ///
    /// width of tab.
    #[doc(alias = "gtk_source_view_get_tab_width")]
    #[doc(alias = "get_tab_width")]
    fn tab_width(&self) -> u32 {
        unsafe { ffi::gtk_source_view_get_tab_width(self.as_ref().to_glib_none().0) }
    }

    /// Determines the visual column at `iter` taking into consideration the
    /// [`tab-width`][struct@crate::View#tab-width] of `self`.
    /// ## `iter`
    /// a position in `self`.
    ///
    /// # Returns
    ///
    /// the visual column at `iter`.
    #[doc(alias = "gtk_source_view_get_visual_column")]
    #[doc(alias = "get_visual_column")]
    fn visual_column(&self, iter: &gtk::TextIter) -> u32 {
        unsafe {
            ffi::gtk_source_view_get_visual_column(
                self.as_ref().to_glib_none().0,
                iter.to_glib_none().0,
            )
        }
    }

    /// Inserts one indentation level at the beginning of the specified lines. The
    /// empty lines are not indented.
    /// ## `start`
    /// [`gtk::TextIter`][crate::gtk::TextIter] of the first line to indent
    /// ## `end`
    /// [`gtk::TextIter`][crate::gtk::TextIter] of the last line to indent
    #[doc(alias = "gtk_source_view_indent_lines")]
    fn indent_lines(&self, start: &mut gtk::TextIter, end: &mut gtk::TextIter) {
        unsafe {
            ffi::gtk_source_view_indent_lines(
                self.as_ref().to_glib_none().0,
                start.to_glib_none_mut().0,
                end.to_glib_none_mut().0,
            );
        }
    }

    /// If [`true`] auto-indentation of text is enabled.
    ///
    /// When Enter is pressed to create a new line, the auto-indentation inserts the
    /// same indentation as the previous line. This is `<emphasis>`not`</emphasis>` a
    /// "smart indentation" where an indentation level is added or removed depending
    /// on the context.
    /// ## `enable`
    /// whether to enable auto indentation.
    #[doc(alias = "gtk_source_view_set_auto_indent")]
    fn set_auto_indent(&self, enable: bool) {
        unsafe {
            ffi::gtk_source_view_set_auto_indent(
                self.as_ref().to_glib_none().0,
                enable.into_glib(),
            );
        }
    }

    /// Set if and how the background pattern should be displayed.
    /// ## `background_pattern`
    /// the [`BackgroundPatternType`][crate::BackgroundPatternType].
    #[doc(alias = "gtk_source_view_set_background_pattern")]
    fn set_background_pattern(&self, background_pattern: BackgroundPatternType) {
        unsafe {
            ffi::gtk_source_view_set_background_pattern(
                self.as_ref().to_glib_none().0,
                background_pattern.into_glib(),
            );
        }
    }

    /// If `highlight` is [`true`] the current line will be highlighted.
    /// ## `highlight`
    /// whether to highlight the current line.
    #[doc(alias = "gtk_source_view_set_highlight_current_line")]
    fn set_highlight_current_line(&self, highlight: bool) {
        unsafe {
            ffi::gtk_source_view_set_highlight_current_line(
                self.as_ref().to_glib_none().0,
                highlight.into_glib(),
            );
        }
    }

    /// If [`true`], when the tab key is pressed when several lines are selected, the
    /// selected lines are indented of one level instead of being replaced with a \t
    /// character. Shift+Tab unindents the selection.
    ///
    /// If the first or last line is not selected completely, it is also indented or
    /// unindented.
    ///
    /// When the selection doesn't span several lines, the tab key always replaces
    /// the selection with a normal \t character.
    /// ## `enable`
    /// whether to indent a block when tab is pressed.
    #[doc(alias = "gtk_source_view_set_indent_on_tab")]
    fn set_indent_on_tab(&self, enable: bool) {
        unsafe {
            ffi::gtk_source_view_set_indent_on_tab(
                self.as_ref().to_glib_none().0,
                enable.into_glib(),
            );
        }
    }

    /// Sets the number of spaces to use for each step of indent when the tab key is
    /// pressed. If `width` is -1, the value of the [`tab-width`][struct@crate::View#tab-width] property
    /// will be used.
    ///
    /// The [`indent-width`][struct@crate::View#indent-width] interacts with the
    /// [`insert-spaces-instead-of-tabs`][struct@crate::View#insert-spaces-instead-of-tabs] property and
    /// [`tab-width`][struct@crate::View#tab-width]. An example will be clearer: if the
    /// [`indent-width`][struct@crate::View#indent-width] is 4 and
    /// [`tab-width`][struct@crate::View#tab-width] is 8 and
    /// [`insert-spaces-instead-of-tabs`][struct@crate::View#insert-spaces-instead-of-tabs] is [`false`], then pressing the tab
    /// key at the beginning of a line will insert 4 spaces. So far so good. Pressing
    /// the tab key a second time will remove the 4 spaces and insert a \t character
    /// instead (since [`tab-width`][struct@crate::View#tab-width] is 8). On the other hand, if
    /// [`insert-spaces-instead-of-tabs`][struct@crate::View#insert-spaces-instead-of-tabs] is [`true`], the second tab key
    /// pressed will insert 4 more spaces for a total of 8 spaces in the
    /// [`gtk::TextBuffer`][crate::gtk::TextBuffer].
    ///
    /// The test-widget program (available in the GtkSourceView repository) may be
    /// useful to better understand the indentation settings (enable the space
    /// drawing!).
    /// ## `width`
    /// indent width in characters.
    #[doc(alias = "gtk_source_view_set_indent_width")]
    fn set_indent_width(&self, width: i32) {
        unsafe {
            ffi::gtk_source_view_set_indent_width(self.as_ref().to_glib_none().0, width);
        }
    }

    /// If [`true`] a tab key pressed is replaced by a group of space characters. Of
    /// course it is still possible to insert a real \t programmatically with the
    /// [`gtk::TextBuffer`][crate::gtk::TextBuffer] API.
    /// ## `enable`
    /// whether to insert spaces instead of tabs.
    #[doc(alias = "gtk_source_view_set_insert_spaces_instead_of_tabs")]
    fn set_insert_spaces_instead_of_tabs(&self, enable: bool) {
        unsafe {
            ffi::gtk_source_view_set_insert_spaces_instead_of_tabs(
                self.as_ref().to_glib_none().0,
                enable.into_glib(),
            );
        }
    }

    /// Sets attributes and priority for the `category`.
    /// ## `category`
    /// the category.
    /// ## `attributes`
    /// mark attributes.
    /// ## `priority`
    /// priority of the category.
    #[doc(alias = "gtk_source_view_set_mark_attributes")]
    fn set_mark_attributes(
        &self,
        category: &str,
        attributes: &impl IsA<MarkAttributes>,
        priority: i32,
    ) {
        unsafe {
            ffi::gtk_source_view_set_mark_attributes(
                self.as_ref().to_glib_none().0,
                category.to_glib_none().0,
                attributes.as_ref().to_glib_none().0,
                priority,
            );
        }
    }

    /// Sets the position of the right margin in the given `self`.
    /// ## `pos`
    /// the width in characters where to position the right margin.
    #[doc(alias = "gtk_source_view_set_right_margin_position")]
    fn set_right_margin_position(&self, pos: u32) {
        unsafe {
            ffi::gtk_source_view_set_right_margin_position(self.as_ref().to_glib_none().0, pos);
        }
    }

    /// If [`true`] line marks will be displayed beside the text.
    /// ## `show`
    /// whether line marks should be displayed.
    #[doc(alias = "gtk_source_view_set_show_line_marks")]
    fn set_show_line_marks(&self, show: bool) {
        unsafe {
            ffi::gtk_source_view_set_show_line_marks(
                self.as_ref().to_glib_none().0,
                show.into_glib(),
            );
        }
    }

    /// If [`true`] line numbers will be displayed beside the text.
    /// ## `show`
    /// whether line numbers should be displayed.
    #[doc(alias = "gtk_source_view_set_show_line_numbers")]
    fn set_show_line_numbers(&self, show: bool) {
        unsafe {
            ffi::gtk_source_view_set_show_line_numbers(
                self.as_ref().to_glib_none().0,
                show.into_glib(),
            );
        }
    }

    /// If [`true`] a right margin is displayed.
    /// ## `show`
    /// whether to show a right margin.
    #[doc(alias = "gtk_source_view_set_show_right_margin")]
    fn set_show_right_margin(&self, show: bool) {
        unsafe {
            ffi::gtk_source_view_set_show_right_margin(
                self.as_ref().to_glib_none().0,
                show.into_glib(),
            );
        }
    }

    /// When set to [`true`], pressing the Backspace key will try to delete spaces
    /// up to the previous tab stop.
    /// ## `smart_backspace`
    /// whether to enable smart Backspace handling.
    #[doc(alias = "gtk_source_view_set_smart_backspace")]
    fn set_smart_backspace(&self, smart_backspace: bool) {
        unsafe {
            ffi::gtk_source_view_set_smart_backspace(
                self.as_ref().to_glib_none().0,
                smart_backspace.into_glib(),
            );
        }
    }

    /// Set the desired movement of the cursor when HOME and END keys
    /// are pressed.
    /// ## `smart_home_end`
    /// the desired behavior among [`SmartHomeEndType`][crate::SmartHomeEndType].
    #[doc(alias = "gtk_source_view_set_smart_home_end")]
    fn set_smart_home_end(&self, smart_home_end: SmartHomeEndType) {
        unsafe {
            ffi::gtk_source_view_set_smart_home_end(
                self.as_ref().to_glib_none().0,
                smart_home_end.into_glib(),
            );
        }
    }

    /// Sets the width of tabulation in characters. The [`gtk::TextBuffer`][crate::gtk::TextBuffer] still contains
    /// \t characters, but they can take a different visual width in a [`View`][crate::View]
    /// widget.
    /// ## `width`
    /// width of tab in characters.
    #[doc(alias = "gtk_source_view_set_tab_width")]
    fn set_tab_width(&self, width: u32) {
        unsafe {
            ffi::gtk_source_view_set_tab_width(self.as_ref().to_glib_none().0, width);
        }
    }

    /// Removes one indentation level at the beginning of the
    /// specified lines.
    /// ## `start`
    /// [`gtk::TextIter`][crate::gtk::TextIter] of the first line to indent
    /// ## `end`
    /// [`gtk::TextIter`][crate::gtk::TextIter] of the last line to indent
    #[doc(alias = "gtk_source_view_unindent_lines")]
    fn unindent_lines(&self, start: &mut gtk::TextIter, end: &mut gtk::TextIter) {
        unsafe {
            ffi::gtk_source_view_unindent_lines(
                self.as_ref().to_glib_none().0,
                start.to_glib_none_mut().0,
                end.to_glib_none_mut().0,
            );
        }
    }

    /// Keybinding signal to change case of the text at the current cursor position.
    /// ## `case_type`
    /// the case to use
    #[doc(alias = "change-case")]
    fn connect_change_case<F: Fn(&Self, ChangeCaseType) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn change_case_trampoline<
            P: IsA<View>,
            F: Fn(&P, ChangeCaseType) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            case_type: ffi::GtkSourceChangeCaseType,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                View::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(case_type),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"change-case\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    change_case_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_change_case(&self, case_type: ChangeCaseType) {
        self.emit_by_name::<()>("change-case", &[&case_type]);
    }

    /// Keybinding signal to edit a number at the current cursor position.
    /// ## `count`
    /// the number to add to the number at the current position
    #[doc(alias = "change-number")]
    fn connect_change_number<F: Fn(&Self, i32) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn change_number_trampoline<P: IsA<View>, F: Fn(&P, i32) + 'static>(
            this: *mut ffi::GtkSourceView,
            count: libc::c_int,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref(), count)
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"change-number\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    change_number_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_change_number(&self, count: i32) {
        self.emit_by_name::<()>("change-number", &[&count]);
    }

    /// Keybinding signal to join the lines currently selected.
    #[doc(alias = "join-lines")]
    fn connect_join_lines<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn join_lines_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"join-lines\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    join_lines_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_join_lines(&self) {
        self.emit_by_name::<()>("join-lines", &[]);
    }

    /// Emitted when a line mark has been activated (for instance when there
    /// was a button press in the line marks gutter). You can use `iter` to
    /// determine on which line the activation took place.
    /// ## `iter`
    /// a [`gtk::TextIter`][crate::gtk::TextIter]
    /// ## `event`
    /// the `GdkEvent` that activated the event
    #[doc(alias = "line-mark-activated")]
    fn connect_line_mark_activated<F: Fn(&Self, &gtk::TextIter, &gdk::Event) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn line_mark_activated_trampoline<
            P: IsA<View>,
            F: Fn(&P, &gtk::TextIter, &gdk::Event) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            iter: *mut gtk::ffi::GtkTextIter,
            event: *mut gdk::ffi::GdkEvent,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                View::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(iter),
                &from_glib_none(event),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"line-mark-activated\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    line_mark_activated_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// The ::move-lines signal is a keybinding which gets emitted
    /// when the user initiates moving a line. The default binding key
    /// is Alt+Up/Down arrow. And moves the currently selected lines,
    /// or the current line up or down by one line.
    /// ## `down`
    /// [`true`] to move down, [`false`] to move up.
    #[doc(alias = "move-lines")]
    fn connect_move_lines<F: Fn(&Self, bool) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn move_lines_trampoline<P: IsA<View>, F: Fn(&P, bool) + 'static>(
            this: *mut ffi::GtkSourceView,
            down: glib::ffi::gboolean,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                View::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(down),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-lines\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_lines_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_lines(&self, down: bool) {
        self.emit_by_name::<()>("move-lines", &[&down]);
    }

    /// Keybinding signal to move the cursor to the matching bracket.
    /// ## `extend_selection`
    /// [`true`] if the move should extend the selection
    #[doc(alias = "move-to-matching-bracket")]
    fn connect_move_to_matching_bracket<F: Fn(&Self, bool) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn move_to_matching_bracket_trampoline<
            P: IsA<View>,
            F: Fn(&P, bool) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            extend_selection: glib::ffi::gboolean,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                View::from_glib_borrow(this).unsafe_cast_ref(),
                from_glib(extend_selection),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-to-matching-bracket\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_to_matching_bracket_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_to_matching_bracket(&self, extend_selection: bool) {
        self.emit_by_name::<()>("move-to-matching-bracket", &[&extend_selection]);
    }

    /// The ::move-words signal is a keybinding which gets emitted
    /// when the user initiates moving a word. The default binding key
    /// is Alt+Left/Right Arrow and moves the current selection, or the current
    /// word by one word.
    /// ## `count`
    /// the number of words to move over
    #[doc(alias = "move-words")]
    fn connect_move_words<F: Fn(&Self, i32) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn move_words_trampoline<P: IsA<View>, F: Fn(&P, i32) + 'static>(
            this: *mut ffi::GtkSourceView,
            count: libc::c_int,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref(), count)
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"move-words\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    move_words_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_move_words(&self, count: i32) {
        self.emit_by_name::<()>("move-words", &[&count]);
    }

    #[doc(alias = "redo")]
    fn connect_redo<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn redo_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"redo\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    redo_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_redo(&self) {
        self.emit_by_name::<()>("redo", &[]);
    }

    /// The ::show-completion signal is a key binding signal which gets
    /// emitted when the user requests a completion, by pressing
    /// `<keycombo>``<keycap>`Control`</keycap>``<keycap>`space`</keycap>``</keycombo>`.
    ///
    /// This will create a [`CompletionContext`][crate::CompletionContext] with the activation
    /// type as [`CompletionActivation::USER_REQUESTED`][crate::CompletionActivation::USER_REQUESTED].
    ///
    /// Applications should not connect to it, but may emit it with
    /// `g_signal_emit_by_name()` if they need to activate the completion by
    /// another means, for example with another key binding or a menu entry.
    #[doc(alias = "show-completion")]
    fn connect_show_completion<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn show_completion_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"show-completion\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    show_completion_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_show_completion(&self) {
        self.emit_by_name::<()>("show-completion", &[]);
    }

    /// Emitted when a the cursor was moved according to the smart home
    /// end setting. The signal is emitted after the cursor is moved, but
    /// during the GtkTextView::move-cursor action. This can be used to find
    /// out whether the cursor was moved by a normal home/end or by a smart
    /// home/end.
    /// ## `iter`
    /// a [`gtk::TextIter`][crate::gtk::TextIter]
    /// ## `count`
    /// the count
    #[doc(alias = "smart-home-end")]
    fn connect_smart_home_end<F: Fn(&Self, &gtk::TextIter, i32) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn smart_home_end_trampoline<
            P: IsA<View>,
            F: Fn(&P, &gtk::TextIter, i32) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            iter: *mut gtk::ffi::GtkTextIter,
            count: libc::c_int,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                View::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(iter),
                count,
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"smart-home-end\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    smart_home_end_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "undo")]
    fn connect_undo<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn undo_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"undo\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    undo_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn emit_undo(&self) {
        self.emit_by_name::<()>("undo", &[]);
    }

    #[doc(alias = "auto-indent")]
    fn connect_auto_indent_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_auto_indent_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::auto-indent\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_auto_indent_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "background-pattern")]
    fn connect_background_pattern_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_background_pattern_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::background-pattern\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_background_pattern_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "completion")]
    fn connect_completion_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_completion_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::completion\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_completion_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "highlight-current-line")]
    fn connect_highlight_current_line_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_highlight_current_line_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::highlight-current-line\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_highlight_current_line_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "indent-on-tab")]
    fn connect_indent_on_tab_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_indent_on_tab_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::indent-on-tab\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_indent_on_tab_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "indent-width")]
    fn connect_indent_width_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_indent_width_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::indent-width\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_indent_width_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "insert-spaces-instead-of-tabs")]
    fn connect_insert_spaces_instead_of_tabs_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_insert_spaces_instead_of_tabs_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::insert-spaces-instead-of-tabs\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_insert_spaces_instead_of_tabs_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "right-margin-position")]
    fn connect_right_margin_position_notify<F: Fn(&Self) + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn notify_right_margin_position_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::right-margin-position\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_right_margin_position_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "show-line-marks")]
    fn connect_show_line_marks_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_line_marks_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::show-line-marks\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_show_line_marks_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "show-line-numbers")]
    fn connect_show_line_numbers_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_line_numbers_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::show-line-numbers\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_show_line_numbers_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "show-right-margin")]
    fn connect_show_right_margin_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_show_right_margin_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::show-right-margin\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_show_right_margin_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "smart-backspace")]
    fn connect_smart_backspace_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_smart_backspace_trampoline<
            P: IsA<View>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::smart-backspace\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_smart_backspace_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "smart-home-end")]
    fn connect_smart_home_end_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_smart_home_end_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::smart-home-end\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_smart_home_end_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "space-drawer")]
    fn connect_space_drawer_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_space_drawer_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::space-drawer\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_space_drawer_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "tab-width")]
    fn connect_tab_width_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_tab_width_trampoline<P: IsA<View>, F: Fn(&P) + 'static>(
            this: *mut ffi::GtkSourceView,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(View::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::tab-width\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_tab_width_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<View>> ViewExt for O {}

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