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// RichValueStructure - A module for creating the Excel rdrichvaluestructure.xml file.
//
// SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright 2022-2026, John McNamara, jmcnamara@cpan.org
use std::io::Cursor;
use crate::xmlwriter::{xml_declaration, xml_empty_tag, xml_end_tag, xml_start_tag};
pub struct RichValueStructure {
pub(crate) writer: Cursor<Vec<u8>>,
pub(crate) has_embedded_image_descriptions: bool,
}
impl RichValueStructure {
// -----------------------------------------------------------------------
// Crate public methods.
// -----------------------------------------------------------------------
// Create a new RichValueStructure struct.
pub(crate) fn new() -> RichValueStructure {
let writer = Cursor::new(Vec::with_capacity(2048));
RichValueStructure {
writer,
has_embedded_image_descriptions: false,
}
}
// -----------------------------------------------------------------------
// XML assembly methods.
// -----------------------------------------------------------------------
// Assemble and generate the XML file.
pub(crate) fn assemble_xml_file(&mut self) {
xml_declaration(&mut self.writer);
// Write the <rvStructures> element.
self.write_rv_structures();
// Close the final tag.
xml_end_tag(&mut self.writer, "rvStructures");
}
// Write the <rvStructures> element.
fn write_rv_structures(&mut self) {
let attributes = [
(
"xmlns",
"http://schemas.microsoft.com/office/spreadsheetml/2017/richdata",
),
("count", "1"),
];
xml_start_tag(&mut self.writer, "rvStructures", &attributes);
// Write the <s> element.
self.write_s();
}
// Write the <s> element.
fn write_s(&mut self) {
let attributes = [("t", "_localImage")];
xml_start_tag(&mut self.writer, "s", &attributes);
// Write the <k> elements.
self.write_k("_rvRel:LocalImageIdentifier", "i");
self.write_k("CalcOrigin", "i");
if self.has_embedded_image_descriptions {
// Write the <k> element for embedded image descriptions.
self.write_k("Text", "s");
}
xml_end_tag(&mut self.writer, "s");
}
// Write the <k> element.
fn write_k(&mut self, name: &str, name_type: &str) {
let attributes = [("n", name), ("t", name_type)];
xml_empty_tag(&mut self.writer, "k", &attributes);
}
}