chiro 0.1.3

A curses-style terminal view that runs inside a pixel buffer (Rewrite of chiropterm)
Documentation 
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use crate::{shared::Affordance, screen::ZelData, Color};

#[derive(Clone, Copy, Debug)]
pub enum FChar {
    Empty,
    Draw(FCharDraw),
    Newline
}

#[derive(Clone, Copy, Debug)]
pub struct FCharDraw {
    pub character: char,
    pub formatting: Formatting,
}

impl FChar {
    pub fn empty() -> Self {
        FChar::Empty
    }

    pub(crate) fn map_draw(mut self, f: impl FnOnce(FCharDraw) -> FCharDraw) -> FChar {
        if let FChar::Draw(fcd) = &mut self {
            *fcd = f(*fcd)
        };
        self
    }
}

impl From<char> for FChar {
    fn from(c: char) -> Self {
        match c {
            '\n' => FChar::Newline,
            c => FChar::Draw(FCharDraw {character: c, formatting: Formatting::default() }),
        }
    }
}

#[derive(Clone, Copy, Debug, Default)]
pub struct Formatting {
    pub fg: Option<Color>,
    pub bg: Option<Color>,
    pub click: Option<Option<Affordance>>,
    pub scroll: Option<Option<Affordance>>,
}
impl Formatting {
    pub fn makes_changes(&self) -> bool {
        self.fg.is_some() || self.bg.is_some() || self.click.is_some() || self.scroll.is_some()
    }

    pub fn apply(&self, zel: &mut ZelData) {
        if let Some(f) = self.fg { zel.fg = f; }
        if let Some(b) = self.bg { zel.bg = b; }
        if let Some(c) = self.click { zel.click = c; }
        if let Some(s) = self.scroll { zel.scroll = s; }
    }
}