//! A small 5x7 bitmap font (original artwork for this project).

pub const GLYPH_W: usize = 5;
pub const ADVANCE: usize = 6;

pub fn glyph(c: char) -> [u8; 7] {
    match c.to_ascii_uppercase() {
        '0' => [0x0E, 0x11, 0x13, 0x15, 0x19, 0x11, 0x0E],
        '1' => [0x04, 0x0C, 0x04, 0x04, 0x04, 0x04, 0x0E],
        '2' => [0x0E, 0x11, 0x01, 0x02, 0x04, 0x08, 0x1F],
        '3' => [0x1F, 0x02, 0x04, 0x02, 0x01, 0x11, 0x0E],
        '4' => [0x02, 0x06, 0x0A, 0x12, 0x1F, 0x02, 0x02],
        '5' => [0x1F, 0x10, 0x1E, 0x01, 0x01, 0x11, 0x0E],
        '6' => [0x06, 0x08, 0x10, 0x1E, 0x11, 0x11, 0x0E],
        '7' => [0x1F, 0x01, 0x02, 0x04, 0x08, 0x08, 0x08],
        '8' => [0x0E, 0x11, 0x11, 0x0E, 0x11, 0x11, 0x0E],
        '9' => [0x0E, 0x11, 0x11, 0x0F, 0x01, 0x02, 0x0C],
        'A' => [0x0E, 0x11, 0x11, 0x1F, 0x11, 0x11, 0x11],
        'B' => [0x1E, 0x11, 0x11, 0x1E, 0x11, 0x11, 0x1E],
        'C' => [0x0E, 0x11, 0x10, 0x10, 0x10, 0x11, 0x0E],
        'D' => [0x1C, 0x12, 0x11, 0x11, 0x11, 0x12, 0x1C],
        'E' => [0x1F, 0x10, 0x10, 0x1E, 0x10, 0x10, 0x1F],
        'F' => [0x1F, 0x10, 0x10, 0x1E, 0x10, 0x10, 0x10],
        'G' => [0x0E, 0x11, 0x10, 0x17, 0x11, 0x11, 0x0F],
        'H' => [0x11, 0x11, 0x11, 0x1F, 0x11, 0x11, 0x11],
        'I' => [0x0E, 0x04, 0x04, 0x04, 0x04, 0x04, 0x0E],
        'J' => [0x07, 0x02, 0x02, 0x02, 0x02, 0x12, 0x0C],
        'K' => [0x11, 0x12, 0x14, 0x18, 0x14, 0x12, 0x11],
        'L' => [0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x1F],
        'M' => [0x11, 0x1B, 0x15, 0x15, 0x11, 0x11, 0x11],
        'N' => [0x11, 0x11, 0x19, 0x15, 0x13, 0x11, 0x11],
        'O' => [0x0E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0E],
        'P' => [0x1E, 0x11, 0x11, 0x1E, 0x10, 0x10, 0x10],
        'Q' => [0x0E, 0x11, 0x11, 0x11, 0x15, 0x12, 0x0D],
        'R' => [0x1E, 0x11, 0x11, 0x1E, 0x14, 0x12, 0x11],
        'S' => [0x0F, 0x10, 0x10, 0x0E, 0x01, 0x01, 0x1E],
        'T' => [0x1F, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04],
        'U' => [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0E],
        'V' => [0x11, 0x11, 0x11, 0x11, 0x11, 0x0A, 0x04],
        'W' => [0x11, 0x11, 0x11, 0x15, 0x15, 0x15, 0x0A],
        'X' => [0x11, 0x11, 0x0A, 0x04, 0x0A, 0x11, 0x11],
        'Y' => [0x11, 0x11, 0x11, 0x0A, 0x04, 0x04, 0x04],
        'Z' => [0x1F, 0x01, 0x02, 0x04, 0x08, 0x10, 0x1F],
        '.' => [0, 0, 0, 0, 0, 0x0C, 0x0C],
        ',' => [0, 0, 0, 0, 0x0C, 0x04, 0x08],
        ':' => [0, 0x0C, 0x0C, 0, 0x0C, 0x0C, 0],
        '-' => [0, 0, 0, 0x1F, 0, 0, 0],
        '+' => [0, 0x04, 0x04, 0x1F, 0x04, 0x04, 0],
        '/' => [0x01, 0x01, 0x02, 0x04, 0x08, 0x10, 0x10],
        '!' => [0x04, 0x04, 0x04, 0x04, 0x04, 0, 0x04],
        '?' => [0x0E, 0x11, 0x01, 0x02, 0x04, 0, 0x04],
        '<' => [0x02, 0x04, 0x08, 0x10, 0x08, 0x04, 0x02],
        '>' => [0x08, 0x04, 0x02, 0x01, 0x02, 0x04, 0x08],
        '(' => [0x02, 0x04, 0x08, 0x08, 0x08, 0x04, 0x02],
        ')' => [0x08, 0x04, 0x02, 0x02, 0x02, 0x04, 0x08],
        '\'' => [0x04, 0x04, 0x08, 0, 0, 0, 0],
        '"' => [0x0A, 0x0A, 0, 0, 0, 0, 0],
        '#' => [0x0A, 0x0A, 0x1F, 0x0A, 0x1F, 0x0A, 0x0A],
        '=' => [0, 0, 0x1F, 0, 0x1F, 0, 0],
        '_' => [0, 0, 0, 0, 0, 0, 0x1F],
        _ => [0; 7],
    }
}

pub fn text_width(s: &str, scale: usize) -> usize {
    s.chars().count() * ADVANCE * scale
}