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

use crate::{BlendMode, RenderNode};
use glib::translate::*;
use std::fmt;

glib::wrapper! {
    /// A render node applying a blending function between its two child nodes.
    #[doc(alias = "GskBlendNode")]
    pub struct BlendNode(Shared<ffi::GskBlendNode>);

    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),
    }
}

impl glib::StaticType for BlendNode {
    fn static_type() -> glib::Type {
        unsafe { from_glib(ffi::gsk_blend_node_get_type()) }
    }
}

impl BlendNode {
    /// Creates a [`RenderNode`][crate::RenderNode] that will use @blend_mode to blend the @top
    /// node onto the @bottom node.
    /// ## `bottom`
    /// The bottom node to be drawn
    /// ## `top`
    /// The node to be blended onto the @bottom node
    /// ## `blend_mode`
    /// The blend mode to use
    ///
    /// # Returns
    ///
    /// A new [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_blend_node_new")]
    pub fn new(
        bottom: impl AsRef<RenderNode>,
        top: impl AsRef<RenderNode>,
        blend_mode: BlendMode,
    ) -> BlendNode {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gsk_blend_node_new(
                bottom.as_ref().to_glib_none().0,
                top.as_ref().to_glib_none().0,
                blend_mode.into_glib(),
            ))
        }
    }

    /// Retrieves the blend mode used by @self.
    ///
    /// # Returns
    ///
    /// the blend mode
    #[doc(alias = "gsk_blend_node_get_blend_mode")]
    #[doc(alias = "get_blend_mode")]
    pub fn blend_mode(&self) -> BlendMode {
        unsafe { from_glib(ffi::gsk_blend_node_get_blend_mode(self.to_glib_none().0)) }
    }

    /// Retrieves the bottom [`RenderNode`][crate::RenderNode] child of the @self.
    ///
    /// # Returns
    ///
    /// the bottom child node
    #[doc(alias = "gsk_blend_node_get_bottom_child")]
    #[doc(alias = "get_bottom_child")]
    pub fn bottom_child(&self) -> RenderNode {
        unsafe { from_glib_none(ffi::gsk_blend_node_get_bottom_child(self.to_glib_none().0)) }
    }

    /// Retrieves the top [`RenderNode`][crate::RenderNode] child of the @self.
    ///
    /// # Returns
    ///
    /// the top child node
    #[doc(alias = "gsk_blend_node_get_top_child")]
    #[doc(alias = "get_top_child")]
    pub fn top_child(&self) -> RenderNode {
        unsafe { from_glib_none(ffi::gsk_blend_node_get_top_child(self.to_glib_none().0)) }
    }
}

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