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

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

glib::wrapper! {
    /// A render node for an outset shadow.
    #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
    #[doc(alias = "GskOutsetShadowNode")]
    pub struct OutsetShadowNode(Shared<ffi::GskOutsetShadowNode>);

    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!(
    OutsetShadowNode,
    ffi::GskOutsetShadowNode,
    ffi::gsk_outset_shadow_node_get_type,
    RenderNodeType::OutsetShadowNode
);

impl OutsetShadowNode {
    /// Creates a [`RenderNode`][crate::RenderNode] that will render an outset shadow
    /// around the box given by `outline`.
    /// ## `outline`
    /// outline of the region surrounded by shadow
    /// ## `color`
    /// color of the shadow
    /// ## `dx`
    /// horizontal offset of shadow
    /// ## `dy`
    /// vertical offset of shadow
    /// ## `spread`
    /// how far the shadow spreads towards the inside
    /// ## `blur_radius`
    /// how much blur to apply to the shadow
    ///
    /// # Returns
    ///
    /// A new [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_outset_shadow_node_new")]
    pub fn new(
        outline: &RoundedRect,
        color: &gdk::RGBA,
        dx: f32,
        dy: f32,
        spread: f32,
        blur_radius: f32,
    ) -> Self {
        assert_initialized_main_thread!();
        unsafe {
            from_glib_full(ffi::gsk_outset_shadow_node_new(
                outline.to_glib_none().0,
                color.to_glib_none().0,
                dx,
                dy,
                spread,
                blur_radius,
            ))
        }
    }

    /// Retrieves the blur radius of the shadow.
    ///
    /// # Returns
    ///
    /// the blur radius, in pixels
    #[doc(alias = "gsk_outset_shadow_node_get_blur_radius")]
    #[doc(alias = "get_blur_radius")]
    pub fn blur_radius(&self) -> f32 {
        unsafe { ffi::gsk_outset_shadow_node_get_blur_radius(self.to_glib_none().0) }
    }

    /// Retrieves the color of the outset shadow.
    ///
    /// # Returns
    ///
    /// a color
    #[doc(alias = "gsk_outset_shadow_node_get_color")]
    #[doc(alias = "get_color")]
    pub fn color(&self) -> Option<gdk::RGBA> {
        unsafe { from_glib_none(ffi::gsk_outset_shadow_node_get_color(self.to_glib_none().0)) }
    }

    /// Retrieves the horizontal offset of the outset shadow.
    ///
    /// # Returns
    ///
    /// an offset, in pixels
    #[doc(alias = "gsk_outset_shadow_node_get_dx")]
    #[doc(alias = "get_dx")]
    pub fn dx(&self) -> f32 {
        unsafe { ffi::gsk_outset_shadow_node_get_dx(self.to_glib_none().0) }
    }

    /// Retrieves the vertical offset of the outset shadow.
    ///
    /// # Returns
    ///
    /// an offset, in pixels
    #[doc(alias = "gsk_outset_shadow_node_get_dy")]
    #[doc(alias = "get_dy")]
    pub fn dy(&self) -> f32 {
        unsafe { ffi::gsk_outset_shadow_node_get_dy(self.to_glib_none().0) }
    }

    /// Retrieves the outline rectangle of the outset shadow.
    ///
    /// # Returns
    ///
    /// a rounded rectangle
    #[doc(alias = "gsk_outset_shadow_node_get_outline")]
    #[doc(alias = "get_outline")]
    pub fn outline(&self) -> Option<RoundedRect> {
        unsafe {
            from_glib_none(ffi::gsk_outset_shadow_node_get_outline(
                self.to_glib_none().0,
            ))
        }
    }

    /// Retrieves how much the shadow spreads outwards.
    ///
    /// # Returns
    ///
    /// the size of the shadow, in pixels
    #[doc(alias = "gsk_outset_shadow_node_get_spread")]
    #[doc(alias = "get_spread")]
    pub fn spread(&self) -> f32 {
        unsafe { ffi::gsk_outset_shadow_node_get_spread(self.to_glib_none().0) }
    }
}