kanji-svg.rs

use svg::{
    node::{
        self,
        element::{path::Data, Path, Text},
    },
    Document,
};

const WIDTH: f64 = 70.0;
const STROKE_WIDTH: f64 = 0.6;
const STROKE_COLOR: &str = "#cccccc";

const KANJI_X: f64 = WIDTH * 0.05;
const KANJI_Y: f64 = WIDTH * 0.8;
const KANJI_SIZE: f64 = WIDTH * 0.9;

const KANJI: [&str; 3] = [
    "閑散全廃安逸巧拙併読",
    "媒介寡少頑丈窮迫献身",
    "自粛空疎壮健奪還逐次",
];

fn main() {
    const UP: f64 = WIDTH / 2.;
    const LEFT: f64 = WIDTH * 0.8;

    for (page, kanji) in KANJI.iter().enumerate() {
        let mut document = Document::new()
            .set("viewbox", (0, 0, 210, 297))
            .set("width", "210mm")
            .set("height", "297mm");
        let kanji = kanji.chars().collect::<Vec<_>>();
        for row in 0..15 {
            for col in 0..10 {
                document = append_kanji(
                    document,
                    col as f64 * WIDTH + LEFT,
                    row as f64 * WIDTH + UP,
                    kanji[kanji.len() - 1 - col],
                );
            }
        }

        let path = format!("/home/kenkoooo/Desktop/kanji-{}.svg", page);
        svg::save(path, &document).unwrap();
    }
}

fn append_kanji(document: node::element::SVG, x: f64, y: f64, kanji: char) -> node::element::SVG {
    let rect = Path::new()
        .set("fill", "none")
        .set("stroke", STROKE_COLOR)
        .set("stroke-width", STROKE_WIDTH)
        .set("stroke-dasharray", (4, 4))
        .set("stroke-opacity", 1)
        .set(
            "d",
            Data::new()
                .move_to((x, y))
                .line_by((0, WIDTH))
                .line_by((WIDTH, 0))
                .line_by((0, -WIDTH))
                .close(),
        );

    let vertical = Path::new()
        .set("fill", "none")
        .set("stroke", STROKE_COLOR)
        .set("stroke-width", STROKE_WIDTH)
        .set("stroke-dasharray", (4, 4))
        .set("stroke-opacity", 1)
        .set(
            "d",
            Data::new().move_to((x + WIDTH / 2., y)).line_by((0, WIDTH)),
        );
    let horizontal = Path::new()
        .set("fill", "none")
        .set("stroke", STROKE_COLOR)
        .set("stroke-width", STROKE_WIDTH)
        .set("stroke-dasharray", (4, 4))
        .set("stroke-opacity", 1)
        .set(
            "d",
            Data::new().move_to((x, y + WIDTH / 2.)).line_by((WIDTH, 0)),
        );

    let text = Text::new()
        .set("x", x + KANJI_X)
        .set("y", y + KANJI_Y)
        .set("fill", STROKE_COLOR)
        .set("font-family", "KanjiStrokeOrders")
        .set("font-size", KANJI_SIZE)
        .add(node::Text::new(kanji));
    document.add(rect).add(horizontal).add(vertical).add(text)
}