ratex-types 0.0.12

Shared types for the RaTeX math typesetting engine
Documentation 
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use serde::{Deserialize, Serialize};

/// SVG-style path commands for drawing glyph outlines, radical signs,
/// large delimiters, etc.
#[derive(Debug, Clone, Copy, PartialEq, Serialize, Deserialize)]
#[serde(tag = "type")]
pub enum PathCommand {
    MoveTo { x: f64, y: f64 },
    LineTo { x: f64, y: f64 },
    CubicTo { x1: f64, y1: f64, x2: f64, y2: f64, x: f64, y: f64 },
    QuadTo { x1: f64, y1: f64, x: f64, y: f64 },
    Close,
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_serde_roundtrip() {
        let cmds = vec![
            PathCommand::MoveTo { x: 0.0, y: 0.0 },
            PathCommand::LineTo { x: 10.0, y: 0.0 },
            PathCommand::CubicTo {
                x1: 10.0, y1: 5.0,
                x2: 5.0, y2: 10.0,
                x: 0.0, y: 10.0,
            },
            PathCommand::QuadTo {
                x1: 5.0, y1: 5.0,
                x: 0.0, y: 0.0,
            },
            PathCommand::Close,
        ];
        let json = serde_json::to_string(&cmds).unwrap();
        let cmds2: Vec<PathCommand> = serde_json::from_str(&json).unwrap();
        assert_eq!(cmds, cmds2);
    }
}