appcui 0.4.8

A feature-rich and cross-platform TUI/CUI framework for Rust, enabling modern terminal-based applications on Windows, Linux, and macOS. Includes built-in UI components like buttons, menus, list views, tree views, checkboxes, and more. Perfect for building fast and interactive CLI tools and text-based interfaces.
Documentation 
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use crate::graphics::*;

pub(crate) struct Symbol {
    chars: [char; 3],
}
impl Symbol {
    pub(crate) fn new(text: &str) -> Self {
        let mut chars = [0 as char; 3];
        let mut i = 0;
        for c in text.chars() {
            if i < 3 {
                chars[i] = c;
                i += 1;
            } else {
                break;
            }
        }
        Self { chars }
    }
    pub(crate) fn paint(&self, surface: &mut Surface, x: i32, y: i32, attr1: CharAttribute, attr2: CharAttribute, attr3: CharAttribute) {
        let mut x = x;
        surface.write_char(x, y, Character::with_attributes(self.chars[0], attr1));
        if self.chars[1] != 0 as char {
            x += 1;
            surface.write_char(x, y, Character::with_attributes(self.chars[1], attr2));
            if self.chars[2] != 0 as char {
                x += 1;
                surface.write_char(x, y, Character::with_attributes(self.chars[2], attr3));
            }
        }
    }
    #[inline(always)]
    pub(crate) fn width(&self)->u8 {
        match () {
            _ if self.chars[2] != 0 as char => 3,
            _ if self.chars[1] != 0 as char => 2,
            _ if self.chars[0] != 0 as char => 1,
            _ => 0
        }
    }
}