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@ -1,10 +1,16 @@
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use super::SVGUnit;
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use std::cmp::Ordering;
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use std::fmt;
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use std::num::ParseFloatError;
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use std::str::FromStr;
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use std::{
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fmt::Display,
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ops::{Add, Div, Mul, Sub},
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};
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use lazy_static::lazy_static;
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use regex::Regex;
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use derive_more::From;
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use strum::ParseError;
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#[derive(Debug, Clone, Copy)]
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pub struct SVGMeasure {
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@ -29,6 +35,32 @@ impl SVGMeasure {
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}
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}
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#[derive(From, Debug)]
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pub enum SVGUnitParseError {
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ParseMeasure(ParseFloatError),
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ParseUnit(ParseError),
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Invalid,
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}
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impl FromStr for SVGMeasure {
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type Err = SVGUnitParseError;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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if s == "0" {
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return Ok(SVGMeasure::new(0.0, SVGUnit::Pixel));
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}
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lazy_static! {
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static ref RE: Regex = Regex::new(r"^([\d.]+)([a-zA-Z]+)$").unwrap();
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}
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if let Some(captures) = RE.captures(s) {
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let measure = captures[1].parse::<f64>()?;
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let unit = captures[2].parse::<SVGUnit>()?;
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Ok(SVGMeasure::new(measure, unit))
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} else {
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Err(SVGUnitParseError::Invalid)
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}
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}
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}
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const EQ_TOLERANCE: f64 = 0.00001;
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impl PartialEq for SVGMeasure {
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