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//! Shared XML helper methods for chart XML generation.
use std::fmt::Write;
use super::super::data::{CategoryChartData, CategorySeriesData};
use super::{xml_escape_to, ChartXmlWriter};
impl ChartXmlWriter {
/// Write `<c:tx>` element XML for a series name.
pub(super) fn tx_to(w: &mut String, name: &str) {
w.push_str(
"\x20 <c:tx>\n\
\x20 <c:strRef>\n\
\x20 <c:f>Sheet1!$B$1</c:f>\n\
\x20 <c:strCache>\n\
\x20 <c:ptCount val=\"1\"/>\n\
\x20 <c:pt idx=\"0\">\n\
\x20 <c:v>",
);
xml_escape_to(w, name);
w.push_str(
"</c:v>\n\
\x20 </c:pt>\n\
\x20 </c:strCache>\n\
\x20 </c:strRef>\n\
\x20 </c:tx>\n",
);
}
/// Write `<c:cat>` element XML for category labels.
pub(super) fn cat_to(w: &mut String, data: &CategoryChartData) {
// If hierarchical categories are present, emit multi-level category XML
if let Some(levels) = data.hierarchical_categories() {
if levels.len() > 1 {
Self::multi_level_cat_to(w, levels);
return;
}
}
let categories = data.categories();
let count = categories.len();
write_str!(
w,
"\x20 <c:cat>\n\
\x20 <c:strRef>\n\
\x20 <c:f>Sheet1!$A$2:$A${}</c:f>\n\
\x20 <c:strCache>\n\
\x20 <c:ptCount val=\"{count}\"/>\n",
count + 1
);
for (idx, cat) in categories.iter().enumerate() {
write_str!(
w,
"\x20 <c:pt idx=\"{idx}\">\n\
\x20 <c:v>"
);
xml_escape_to(w, cat);
w.push_str(
"</c:v>\n\
\x20 </c:pt>\n",
);
}
w.push_str(
"\x20 </c:strCache>\n\
\x20 </c:strRef>\n\
\x20 </c:cat>\n",
);
}
/// Write multi-level `<c:cat>` XML for hierarchical categories.
fn multi_level_cat_to(w: &mut String, levels: &[Vec<String>]) {
let count = levels.first().map_or(0, Vec::len);
write_str!(
w,
"\x20 <c:cat>\n\
\x20 <c:multiLvlStrRef>\n\
\x20 <c:f>Sheet1!$A$2:$A${}</c:f>\n\
\x20 <c:multiLvlStrCache>\n\
\x20 <c:ptCount val=\"{count}\"/>\n",
count + 1
);
for level in levels {
w.push_str("\x20 <c:lvl>\n");
for (idx, label) in level.iter().enumerate() {
write_str!(
w,
"\x20 <c:pt idx=\"{idx}\">\n\
\x20 <c:v>"
);
xml_escape_to(w, label);
w.push_str(
"</c:v>\n\
\x20 </c:pt>\n",
);
}
w.push_str("\x20 </c:lvl>\n");
}
w.push_str(
"\x20 </c:multiLvlStrCache>\n\
\x20 </c:multiLvlStrRef>\n\
\x20 </c:cat>\n",
);
}
/// Write `<c:val>` element XML for series values.
pub(super) fn val_to(w: &mut String, series: &CategorySeriesData) {
let values = series.values();
let count = values.len();
let number_format = series.number_format().unwrap_or("General");
write_str!(
w,
"\x20 <c:val>\n\
\x20 <c:numRef>\n\
\x20 <c:f>Sheet1!$B$2:$B${}</c:f>\n\
\x20 <c:numCache>\n\
\x20 <c:formatCode>{number_format}</c:formatCode>\n\
\x20 <c:ptCount val=\"{count}\"/>\n",
count + 1
);
for (idx, value) in values.iter().enumerate() {
if let Some(v) = value {
write_str!(
w,
"\x20 <c:pt idx=\"{idx}\">\n\
\x20 <c:v>{v}</c:v>\n\
\x20 </c:pt>\n"
);
}
}
w.push_str(
"\x20 </c:numCache>\n\
\x20 </c:numRef>\n\
\x20 </c:val>\n",
);
}
/// Write `<c:xVal>`, `<c:yVal>`, or `<c:bubbleSize>` element XML
/// for numeric data.
pub(super) fn num_val_to(w: &mut String, tag: &str, values: &[f64], number_format: &str) {
let count = values.len();
write_str!(
w,
"\x20 <c:{tag}>\n\
\x20 <c:numRef>\n\
\x20 <c:f>Sheet1!$A$2:$A${}</c:f>\n\
\x20 <c:numCache>\n\
\x20 <c:formatCode>{number_format}</c:formatCode>\n\
\x20 <c:ptCount val=\"{count}\"/>\n",
count + 1
);
for (idx, v) in values.iter().enumerate() {
write_str!(
w,
"\x20 <c:pt idx=\"{idx}\">\n\
\x20 <c:v>{v}</c:v>\n\
\x20 </c:pt>\n"
);
}
write_str!(
w,
"\x20 </c:numCache>\n\
\x20 </c:numRef>\n\
\x20 </c:{tag}>\n"
);
}
/// Write series XML for all category series.
pub(super) fn category_series_to(w: &mut String, data: &CategoryChartData) {
for series in data.series() {
let idx = series.index();
write_str!(
w,
"\x20 <c:ser>\n\
\x20 <c:idx val=\"{idx}\"/>\n\
\x20 <c:order val=\"{idx}\"/>\n"
);
Self::tx_to(w, series.name());
Self::cat_to(w, data);
Self::val_to(w, series);
w.push_str("\x20 </c:ser>\n");
}
}
/// Write series XML with explosion element (for pie/doughnut).
pub(super) fn category_series_with_explosion_to(
w: &mut String,
data: &CategoryChartData,
explosion_xml: &str,
) {
for series in data.series() {
let idx = series.index();
write_str!(
w,
"\x20 <c:ser>\n\
\x20 <c:idx val=\"{idx}\"/>\n\
\x20 <c:order val=\"{idx}\"/>\n"
);
Self::tx_to(w, series.name());
w.push_str(explosion_xml);
Self::cat_to(w, data);
Self::val_to(w, series);
w.push_str("\x20 </c:ser>\n");
}
}
/// Write `<c:catAx>` element.
pub(super) fn cat_ax_to(w: &mut String, cat_ax_id: &str, val_ax_id: &str, position: &str) {
write_str!(
w,
"\x20 <c:catAx>\n\
\x20 <c:axId val=\"{cat_ax_id}\"/>\n\
\x20 <c:scaling>\n\
\x20 <c:orientation val=\"minMax\"/>\n\
\x20 </c:scaling>\n\
\x20 <c:delete val=\"0\"/>\n\
\x20 <c:axPos val=\"{position}\"/>\n\
\x20 <c:majorTickMark val=\"out\"/>\n\
\x20 <c:minorTickMark val=\"none\"/>\n\
\x20 <c:tickLblPos val=\"nextTo\"/>\n\
\x20 <c:crossAx val=\"{val_ax_id}\"/>\n\
\x20 <c:crosses val=\"autoZero\"/>\n\
\x20 <c:auto val=\"1\"/>\n\
\x20 <c:lblAlgn val=\"ctr\"/>\n\
\x20 <c:lblOffset val=\"100\"/>\n\
\x20 <c:noMultiLvlLbl val=\"0\"/>\n\
\x20 </c:catAx>\n"
);
}
/// Write `<c:view3D>` element for 3D charts.
pub(super) fn view3d_to(w: &mut String, rot_x: i32, rot_y: i32, perspective: i32) {
write_str!(
w,
"\x20 <c:view3D>\n\
\x20 <c:rotX val=\"{rot_x}\"/>\n\
\x20 <c:rotY val=\"{rot_y}\"/>\n\
\x20 <c:perspective val=\"{perspective}\"/>\n\
\x20 </c:view3D>\n"
);
}
/// Write `<c:txPr>` (text properties) element for the chart space.
pub(super) fn txpr_to(w: &mut String) {
w.push_str(
"\x20 <c:txPr>\n\
\x20 <a:bodyPr/>\n\
\x20 <a:lstStyle/>\n\
\x20 <a:p>\n\
\x20 <a:pPr>\n\
\x20 <a:defRPr sz=\"1800\"/>\n\
\x20 </a:pPr>\n\
\x20 <a:endParaRPr lang=\"en-US\"/>\n\
\x20 </a:p>\n\
\x20 </c:txPr>\n",
);
}
}