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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::RenderNode;
use glib::translate::*;
use std::fmt;

glib::wrapper! {
    /// A render node controlling the opacity of its single child node.
    #[doc(alias = "GskOpacityNode")]
    pub struct OpacityNode(Shared<ffi::GskOpacityNode>);

    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 OpacityNode {
    fn static_type() -> glib::Type {
        unsafe { from_glib(ffi::gsk_opacity_node_get_type()) }
    }
}

impl OpacityNode {
    /// Creates a [`RenderNode`][crate::RenderNode] that will drawn the @child with reduced
    /// @opacity.
    /// ## `child`
    /// The node to draw
    /// ## `opacity`
    /// The opacity to apply
    ///
    /// # Returns
    ///
    /// A new [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_opacity_node_new")]
    pub fn new(child: impl AsRef<RenderNode>, opacity: f32) -> OpacityNode {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gsk_opacity_node_new(
                child.as_ref().to_glib_none().0,
                opacity,
            ))
        }
    }

    /// Gets the child node that is getting opacityed by the given @self.
    ///
    /// # Returns
    ///
    /// The child that is getting opacityed
    #[doc(alias = "gsk_opacity_node_get_child")]
    #[doc(alias = "get_child")]
    pub fn child(&self) -> RenderNode {
        unsafe { from_glib_none(ffi::gsk_opacity_node_get_child(self.to_glib_none().0)) }
    }

    /// Gets the transparency factor for an opacity node.
    ///
    /// # Returns
    ///
    /// the opacity factor
    #[doc(alias = "gsk_opacity_node_get_opacity")]
    #[doc(alias = "get_opacity")]
    pub fn opacity(&self) -> f32 {
        unsafe { ffi::gsk_opacity_node_get_opacity(self.to_glib_none().0) }
    }
}

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