excel_reader 2.0.2 

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use super::path_point::XlsxPoint;
use crate::excel::XmlReader;
use anyhow::bail;
use quick_xml::events::Event;
use std::io::Read;

/// https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.drawing.cubicbeziercurveto?view=openxml-3.0.1
///
/// This element specifies to draw a cubic bezier curve along the specified points.
///
/// To specify a cubic bezier curve there needs to be 3 points specified.
/// The first two are control points used in the cubic bezier calculation and the last is the ending point for the curve.
// tag: cubicBezTo
#[derive(Debug, Clone, PartialEq)]
pub struct XlsxCubicBezierCurveTo {
    // Child
    pub points: Option<Vec<XlsxPoint>>,
}

impl XlsxCubicBezierCurveTo {
    pub(crate) fn load(reader: &mut XmlReader<impl Read>) -> anyhow::Result<Self> {
        let mut points: Vec<XlsxPoint> = vec![];

        let mut buf = Vec::new();

        loop {
            buf.clear();

            match reader.read_event_into(&mut buf) {
                Ok(Event::Start(ref e)) if e.local_name().as_ref() == b"pt" => {
                    points.push(XlsxPoint::load(e)?);
                }
                Ok(Event::End(ref e)) if e.local_name().as_ref() == b"cubicBezTo" => break,
                Ok(Event::Eof) => bail!("unexpected end of file."),
                Err(e) => bail!(e.to_string()),
                _ => (),
            }
        }
        Ok(Self {
            points: Some(points),
        })
    }
}