Bounding box of laid out text for easy shiftnig of the origin?

[EriKWDev]

I'm trying to shift the origin of the laid out text for which I need the total width and height.

let (xw, yw) = (0.5, 0.5);
let offset_x = -total_width * xw;
let offset_y = total_height * yw;

let glyphs = layout.glyphs();
layout.lines().unwrap().for_each(|line| {
    for i in line.glyph_start..=line.glyph_end {
        let g = &glyphs[i];
        // TODO: Shift glyph position by `offset_x` and `offset_y` 
    }
});

I found Layout::height which seems to be what I need for total_height for calculating offset_y up-front, but I've found no equivalent Layout::width?

I found the private tracking_x which seems to have been useful here maybe since it's used for the horizontal alignment in the finalize stage..

Is there something I've missed in the API or do I have to calculate the total_width manually like I do currently which seems to work:

let total_height = layout.height();
let total_width = {
    let mut max_width: f32 = f32::MIN;
    lines.iter().for_each(|line| {
        let gs = &glyphs[line.glyph_start];
        let ge = &glyphs[line.glyph_end];

        let min = gs.x;
        let max = ge.x + ge.width as f32;

        max_width = max_width.max(max - min + line.padding);
    });
    max_width
};

If I'm totally wrong here, how would you calculate the bounding box of the laid out text?

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Thanks btw for making this crate as dependency free and self-standing as possible. I really appreciate that kind of effort :)