mksvg 0.3.0

A Crate for writing svgs and laying out printable cards
Documentation 
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//! path exists to make paths much easier to write svg paths
//! while you can make the path anywey you like and send that as the argument, it may be
//! simpler to create it like below:
//!
//! ```
//! use mksvg::*;
//! let mut s = "".to_string();
//! {
//!     let mut svg = SvgFmt::new(&mut s);
//!     // ... normally do svg start
//!     Tag::path(PathD::rel().m(5,5).l(10,10)).stroke("black").write(&mut svg);
//!     // ... normally do svg end
//! }
//!
//! assert_eq!("<path d=\"m 5 5 l 10 10 \" style=\"stroke:black;\" />\n"
//!             ,&s);
//!
//! ```

use std::fmt;
use std::fmt::{Display, Formatter};

#[derive(Clone)]
pub struct PNode {
    tp: char,
    vals: String,
}

#[derive(Clone)]
pub struct PathD {
    items: Vec<PNode>,
    rel: bool,
}

impl Display for PathD {
    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
        let mut res = "".to_string();
        for a in &self.items {
            res.push_str(&format!("{} {} ", a.tp, a.vals));
        }
        write!(f, "{}", res)
    }
}

impl PathD {
    pub fn rel() -> Self {
        PathD {
            items: Vec::new(),
            rel: true,
        }
    }
    pub fn abs() -> Self {
        PathD {
            items: Vec::new(),
            rel: false,
        }
    }

    pub fn set_rel(mut self, b: bool) -> Self {
        self.rel = b;
        self
    }

    ///add will make sure the option is case matched to the current relative/absolute state
    pub fn add(mut self, tp: char, vals: &str) -> Self {
        match self.rel {
            true => self.items.push(PNode {
                tp: tp.to_ascii_lowercase(),
                vals: vals.to_string(),
            }),
            false => self.items.push(PNode {
                tp: tp.to_ascii_uppercase(),
                vals: vals.to_string(),
            }),
        }
        self
    }

    pub fn m<T: Display>(self, x: T, y: T) -> Self {
        self.add('m', &format!("{} {}", x, y))
    }

    pub fn l<T: Display>(self, x: T, y: T) -> Self {
        self.add('l', &format!("{} {}", x, y))
    }

    pub fn h<T: Display>(self, x: T) -> Self {
        self.add('h', &format!("{}", x))
    }
    pub fn v<T: Display>(self, y: T) -> Self {
        self.add('v', &format!("{}", y))
    }

    pub fn z(self) -> Self {
        self.add('z', "")
    }

    pub fn c<T: Display>(self, cx1: T, cy1: T, cx2: T, cy2: T, x: T, y: T) -> Self {
        self.add('c', &format!("{} {} {} {} {} {}", cx1, cy1, cx2, cy2, x, y))
    }

    pub fn s<T: Display>(self, cx: T, cy: T, x: T, y: T) -> Self {
        self.add('s', &format!("{} {} {} {}", cx, cy, x, y))
    }

    pub fn q<T: Display>(self, cx: T, cy: T, x: T, y: T) -> Self {
        self.add('q', &format!("{} {} {} {}", cx, cy, x, y))
    }

    pub fn t<T: Display>(self, x: T, y: T) -> Self {
        self.add('t', &format!("{} {}", x, y))
    }

    pub fn a<T: Display>(self, rx: T, ry: T, large: bool, clockwise: bool, x: T, y: T) -> Self {
        self.add(
            'a',
            &format!(
                "{} {} {} {} {} {}",
                rx, ry, large as i8, clockwise as i8, x, y
            ),
        )
    }
}