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    use std::cmp::min;

    use line_drawing::Bresenham;
    use line_drawing::XiaolinWu;

    use Canvas;
    use Drawable;

    /// A drawable object that represents a line
    pub struct Line {
        /// The first point of the line
        pub pt1: (usize, usize),
        /// The second point of the line
        pub pt2: (usize, usize),
        /// The color of the line
        pub color: [u8; 4],
        /// Decides whether the line will be antialiased
        pub antialiased: bool,
    }

    impl Line {
        /// Creates a new Line object
        pub fn new(
            pt1: (usize, usize),
            pt2: (usize, usize),
            color: [u8; 4],
            antialiased: bool,
        ) -> Line {
            Line {
                pt1,
                pt2,
                color,
                antialiased,
            }
        }
    }

    impl Drawable for Line {
        fn draw(&self, canvas: &mut Canvas) {
            if !self.antialiased {
                if self.pt1.0 == self.pt2.0 && self.pt1.0 < canvas.width {
                    let (min_y, max_y) = if self.pt1.1 > self.pt2.1 {
                        (self.pt2.1, self.pt1.1)
                    } else {
                        (self.pt1.1, self.pt2.1)
                    };
                    for y in min_y..min(max_y, canvas.height - 1) + 1 {
                        canvas.draw_point(self.pt1.0, y, self.color)
                    }
                } else if self.pt1.1 == self.pt2.1 && self.pt1.1 < canvas.height {
                    let (min_x, max_x) = if self.pt1.0 > self.pt2.0 {
                        (self.pt2.0, self.pt1.0)
                    } else {
                        (self.pt1.0, self.pt2.0)
                    };
                    for x in min_x..min(max_x, canvas.width - 1) + 1 {
                        canvas.draw_point(x, self.pt1.1, self.color)
                    }
                } else {
                    // Angled line without antialias
                    for (x, y) in Bresenham::new(
                        (self.pt1.0 as isize, self.pt1.1 as isize),
                        (self.pt2.0 as isize, self.pt2.1 as isize),
                    ) {
                        if x < canvas.width as isize && y < canvas.height as isize {
                            canvas.draw_point(x as usize, y as usize, self.color)
                        }
                    }
                }
            } else {
                // Angled line with antialias
                for ((x, y), coverage) in XiaolinWu::<f32, isize>::new(
                    (self.pt1.0 as f32, self.pt1.1 as f32),
                    (self.pt2.0 as f32, self.pt2.1 as f32),
                ) {
                    if x < canvas.width as isize && y < canvas.height as isize {
                        let mut color = self.color;
                        color[3] = (f32::from(color[3]) * coverage) as u8;
                        canvas.draw_point(x as usize, y as usize, color)
                    }
                }
            }
        }
    }

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