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use anyhow::bail;
use quick_xml::events::BytesStart;
use crate::helper::string_to_int;
/// hsl (Hue Saturation Luminance Effect)
///
/// This element specifies a hue/saturation/luminance effect.
/// The hue, saturation, and luminance can each be adjusted relative to its current value.
///
/// https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.drawing.hsl?view=openxml-3.0.1
#[derive(Debug, Clone, PartialEq)]
pub struct XlsxHsl {
// attributes:
/// Specifies the number of degrees by which the hue is adjusted.
pub hue: Option<i64>,
/// Specifies the percentage by which the luminance is adjusted.
pub lum: Option<i64>,
/// Specifies the percentage by which the saturation is adjusted.
pub sat: Option<i64>,
}
impl XlsxHsl {
pub(crate) fn load(e: &BytesStart) -> anyhow::Result<Self> {
let attributes = e.attributes();
let mut hsl = Self {
hue: None,
lum: None,
sat: None,
};
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"hue" => {
hsl.hue = string_to_int(&string_value);
}
b"lum" => {
hsl.lum = string_to_int(&string_value);
}
b"sat" => {
hsl.sat = string_to_int(&string_value);
}
_ => {}
}
}
Err(error) => {
bail!(error.to_string())
}
}
}
Ok(hsl)
}
}