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

use std::fmt;

use glib::translate::*;

use crate::{Plane, Point3D, Vec3, Vec4};

impl Plane {
/// Initializes the given [`Plane`][crate::Plane] using the given `normal` vector
/// and `constant` values.
/// ## `normal`
/// a unit length normal vector defining the plane
///  pointing towards the origin; if unset, we use the X axis by default
/// ## `constant`
/// the distance from the origin to the plane along the
///  normal vector; the sign determines the half-space occupied by the
///  plane
///
/// # Returns
///
/// the initialized plane
#[doc(alias = "graphene_plane_init")]
pub fn new(normal: Option<&Vec3>, constant: f32) -> Self {
unsafe {
let mut plane = Self::uninitialized();
ffi::graphene_plane_init(
plane.to_glib_none_mut().0,
normal.to_glib_none().0,
constant,
);
plane
}
}

/// Initializes the given [`Plane`][crate::Plane] using the given normal vector
/// and an arbitrary co-planar point.
/// ## `normal`
/// a normal vector defining the plane pointing towards the origin
/// ## `point`
/// a [`Point3D`][crate::Point3D]
///
/// # Returns
///
/// the initialized plane
#[doc(alias = "graphene_plane_init_from_point")]
#[doc(alias = "init_from_point")]
pub fn from_point(normal: &Vec3, point: &Point3D) -> Self {
unsafe {
let mut plane = Self::uninitialized();
ffi::graphene_plane_init_from_point(
plane.to_glib_none_mut().0,
normal.to_glib_none().0,
point.to_glib_none().0,
);
plane
}
}

/// Initializes the given [`Plane`][crate::Plane] using the 3 provided co-planar
/// points.
///
/// The winding order is counter-clockwise, and determines which direction
/// the normal vector will point.
/// ## `a`
/// a [`Point3D`][crate::Point3D]
/// ## `b`
/// a [`Point3D`][crate::Point3D]
/// ## `c`
/// a [`Point3D`][crate::Point3D]
///
/// # Returns
///
/// the initialized plane
#[doc(alias = "graphene_plane_init_from_points")]
#[doc(alias = "init_from_points")]
pub fn from_points(a: &Point3D, b: &Point3D, c: &Point3D) -> Self {
unsafe {
let mut plane = Self::uninitialized();
ffi::graphene_plane_init_from_points(
plane.to_glib_none_mut().0,
a.to_glib_none().0,
b.to_glib_none().0,
c.to_glib_none().0,
);
plane
}
}

/// Initializes the given [`Plane`][crate::Plane] using the components of
/// the given [`Vec4`][crate::Vec4] vector.
/// ## `src`
/// a [`Vec4`][crate::Vec4] containing the normal vector in its first
///  three components, and the distance in its fourth component
///
/// # Returns
///
/// the initialized plane
#[doc(alias = "graphene_plane_init_from_vec4")]
#[doc(alias = "init_from_vec4")]
pub fn from_vec4(src: &Vec4) -> Self {
unsafe {
let mut plane = Self::uninitialized();
ffi::graphene_plane_init_from_vec4(plane.to_glib_none_mut().0, src.to_glib_none().0);
plane
}
}
}

impl fmt::Debug for Plane {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Plane")
.field("constant", &self.constant())
.field("normal", &self.normal())
.finish()
}
}
``````