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

use crate::Widget;
use glib::object::IsA;
use glib::translate::*;
use std::fmt;
use std::mem;

glib::wrapper! {
    /// A [`TextChildAnchor`][crate::TextChildAnchor] is a spot in a [`TextBuffer`][crate::TextBuffer] where child widgets can
    /// be “anchored”.
    ///
    /// The anchor can have multiple widgets anchored, to allow for multiple views.
    ///
    /// # Implements
    ///
    /// [`TextChildAnchorExt`][trait@crate::prelude::TextChildAnchorExt], [`trait@glib::ObjectExt`]
    #[doc(alias = "GtkTextChildAnchor")]
    pub struct TextChildAnchor(Object<ffi::GtkTextChildAnchor, ffi::GtkTextChildAnchorClass>);

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

impl TextChildAnchor {
    /// Creates a new [`TextChildAnchor`][crate::TextChildAnchor].
    ///
    /// Usually you would then insert it into a [`TextBuffer`][crate::TextBuffer] with
    /// [``TextBufferExt::insert_child_anchor()``][crate::prelude::`TextBufferExt::insert_child_anchor()`]. To perform the
    /// creation and insertion in one step, use the convenience
    /// function [``TextBufferExt::create_child_anchor()``][crate::prelude::`TextBufferExt::create_child_anchor()`].
    ///
    /// # Returns
    ///
    /// a new [`TextChildAnchor`][crate::TextChildAnchor]
    #[doc(alias = "gtk_text_child_anchor_new")]
    pub fn new() -> TextChildAnchor {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(ffi::gtk_text_child_anchor_new()) }
    }
}

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

pub const NONE_TEXT_CHILD_ANCHOR: Option<&TextChildAnchor> = None;

/// Trait containing all [`struct@TextChildAnchor`] methods.
///
/// # Implementors
///
/// [`TextChildAnchor`][struct@crate::TextChildAnchor]
pub trait TextChildAnchorExt: 'static {
    /// Determines whether a child anchor has been deleted from
    /// the buffer.
    ///
    /// Keep in mind that the child anchor will be unreferenced
    /// when removed from the buffer, so you need to hold your own
    /// reference (with `g_object_ref()`) if you plan to use this
    /// function — otherwise all deleted child anchors will also
    /// be finalized.
    ///
    /// # Returns
    ///
    /// [`true`] if the child anchor has been deleted from its buffer
    #[doc(alias = "gtk_text_child_anchor_get_deleted")]
    #[doc(alias = "get_deleted")]
    fn is_deleted(&self) -> bool;

    /// Gets a list of all widgets anchored at this child anchor.
    ///
    /// The order in which the widgets are returned is not defined.
    ///
    /// # Returns
    ///
    /// an
    ///  array of widgets anchored at `self`
    #[doc(alias = "gtk_text_child_anchor_get_widgets")]
    #[doc(alias = "get_widgets")]
    fn widgets(&self) -> Vec<Widget>;
}

impl<O: IsA<TextChildAnchor>> TextChildAnchorExt for O {
    fn is_deleted(&self) -> bool {
        unsafe {
            from_glib(ffi::gtk_text_child_anchor_get_deleted(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn widgets(&self) -> Vec<Widget> {
        unsafe {
            let mut out_len = mem::MaybeUninit::uninit();
            let ret = FromGlibContainer::from_glib_container_num(
                ffi::gtk_text_child_anchor_get_widgets(
                    self.as_ref().to_glib_none().0,
                    out_len.as_mut_ptr(),
                ),
                out_len.assume_init() as usize,
            );
            ret
        }
    }
}

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