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use anyhow::bail;
use quick_xml::events::{BytesStart, Event};
use std::io::Read;
use crate::excel::XmlReader;
use super::adjust_value_list::{load_adjust_value_list, XlsxAdjustValueList};
/// https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.drawing.presetgeometry?view=openxml-3.0.1
///
/// This element specifies when a preset geometric shape should be used instead of a custom geometric shape.
///
/// Example
/// ```
/// <a:prstGeom prst="heart">
/// <a:avLst />
/// </a:prstGeom>
/// ```
#[derive(Debug, Clone, PartialEq)]
pub struct XlsxPresetGeometry {
// Child Elements
// avLst (List of Shape Adjust Values) ยง20.1.9.5
pub adjust_value_list: Option<XlsxAdjustValueList>,
// attributes
/// Preset Shape.
/// Allowed values: https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.drawing.shapetypevalues?view=openxml-3.0.1
// tag: prst
pub preset: Option<String>,
}
impl XlsxPresetGeometry {
pub(crate) fn load(reader: &mut XmlReader<impl Read>, e: &BytesStart) -> anyhow::Result<Self> {
let mut geom = Self {
adjust_value_list: None,
preset: None,
};
let attributes = e.attributes();
for a in attributes {
match a {
Ok(a) => {
let string_value = String::from_utf8(a.value.to_vec())?;
match a.key.local_name().as_ref() {
b"prst" => {
geom.preset = Some(string_value);
break;
}
_ => {}
}
}
Err(error) => {
bail!(error.to_string())
}
}
}
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"avLst" => {
geom.adjust_value_list = Some(load_adjust_value_list(reader)?);
}
Ok(Event::End(ref e)) if e.local_name().as_ref() == b"prstGeom" => break,
Ok(Event::Eof) => bail!("unexpected end of file."),
Err(e) => bail!(e.to_string()),
_ => (),
}
}
Ok(geom)
}
}