chickensources 0.1.2

generate chickensources graphics
Documentation 
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use image::{DynamicImage, Rgba};
use imageproc::drawing;
use once_cell::sync::Lazy;
use rusttype::Font;

use crate::utils;

static FONT: Lazy<Font<'static>> = Lazy::new(|| {
    let font_data = include_bytes!("fonts/PublicSans-Regular.ttf");
    let font = Font::try_from_bytes(font_data).expect("font should load");

    font
});

const COLOR: Rgba<u8> = Rgba([255, 255, 255, 255]);

pub fn draw(img: &mut DynamicImage, via: &str) {
    let side_length = img.height();

    let max_w = 5 * side_length / 6;
    let max_h = side_length / 60;

    let (scale, text_w, _) = utils::text_size(&FONT, max_w, max_h, via);

    let text_x = (side_length - text_w) / 2;
    let text_y = 19 * side_length / 20;

    drawing::draw_text_mut(
        img,
        COLOR,
        text_x.try_into().unwrap(),
        text_y.try_into().unwrap(),
        scale,
        &FONT,
        via,
    );
}