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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
use super::prelude::*;
// <g fill="red" text-decoration="underline">
// <g fill="blue" text-decoration="overline">
// <text fill="green" text-decoration="line-through">Text</text>
// </g>
// </g>
//
// In this example 'text' element will have all decorators enabled, but color
// will be green for all of them.
//
// There is no simpler way to express 'text-decoration' property
// without groups than collect all the options to the string.
// It's not by the SVG spec, but easier than keeping all the groups.
pub fn prepare_text_decoration(doc: &mut Document) {
for mut node in doc.root().descendants().filter(|n| n.is_tag_name(EId::Text)) {
let mut td = String::new();
if has_attr(&node, "underline") {
td.push_str("underline;");
}
if has_attr(&node, "overline") {
td.push_str("overline;");
}
if has_attr(&node, "line-through") {
td.push_str("line-through;");
}
if !td.is_empty() {
td.pop();
node.set_attribute((AId::TextDecoration, td));
}
}
}
fn has_attr(root: &Node, decoration_id: &str) -> bool {
for (_, node) in root.ancestors().svg() {
let attrs = node.attributes();
if let Some(text) = attrs.get_str(AId::TextDecoration) {
if text == decoration_id {
return true;
}
}
}
false
}
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