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// Take a look at the license at the top of the repository in the LICENSE file.

use crate::{RenderNode, RenderNodeType};
use glib::translate::*;

glib::wrapper! {
    /// A render node repeating its single child node.
    #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
    #[doc(alias = "GskRepeatNode")]
    pub struct RepeatNode(Shared<ffi::GskRepeatNode>);

    match fn {
        ref => |ptr| ffi::gsk_render_node_ref(ptr as *mut ffi::GskRenderNode),
        unref => |ptr| ffi::gsk_render_node_unref(ptr as *mut ffi::GskRenderNode),
    }
}

define_render_node!(
    RepeatNode,
    ffi::GskRepeatNode,
    ffi::gsk_repeat_node_get_type,
    RenderNodeType::RepeatNode
);

impl RepeatNode {
    /// Creates a [`RenderNode`][crate::RenderNode] that will repeat the drawing of `child` across
    /// the given `bounds`.
    /// ## `bounds`
    /// The bounds of the area to be painted
    /// ## `child`
    /// The child to repeat
    /// ## `child_bounds`
    /// The area of the child to repeat or [`None`] to
    ///  use the child's bounds
    ///
    /// # Returns
    ///
    /// A new [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_repeat_node_new")]
    pub fn new<P: AsRef<RenderNode>>(
        bounds: &graphene::Rect,
        child: &P,
        child_bounds: Option<&graphene::Rect>,
    ) -> Self {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gsk_repeat_node_new(
                bounds.to_glib_none().0,
                child.as_ref().to_glib_none().0,
                child_bounds.to_glib_none().0,
            ))
        }
    }

    /// Retrieves the child of `self`.
    ///
    /// # Returns
    ///
    /// a [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_repeat_node_get_child")]
    #[doc(alias = "get_child")]
    pub fn child(&self) -> Option<RenderNode> {
        unsafe { from_glib_none(ffi::gsk_repeat_node_get_child(self.to_glib_none().0)) }
    }

    /// Retrieves the bounding rectangle of the child of `self`.
    ///
    /// # Returns
    ///
    /// a bounding rectangle
    #[doc(alias = "gsk_repeat_node_get_child_bounds")]
    #[doc(alias = "get_child_bounds")]
    pub fn child_bounds(&self) -> Option<graphene::Rect> {
        unsafe { from_glib_none(ffi::gsk_repeat_node_get_child_bounds(self.to_glib_none().0)) }
    }
}