From 3ca5b238238e1128aa7bbfbd5db9e632045d8600 Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Mon, 28 Feb 2022 15:50:48 +0100
Subject: Reorganize library

---
 src/library/elements/math.rs | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 src/library/elements/math.rs

(limited to 'src/library/elements/math.rs')

diff --git a/src/library/elements/math.rs b/src/library/elements/math.rs
new file mode 100644
index 00000000..761b4480
--- /dev/null
+++ b/src/library/elements/math.rs
@@ -0,0 +1,37 @@
+use crate::library::prelude::*;
+
+/// A mathematical formula.
+#[derive(Debug, Hash)]
+pub struct MathNode {
+    /// The formula.
+    pub formula: EcoString,
+    /// Whether the formula is display-level.
+    pub display: bool,
+}
+
+#[class]
+impl MathNode {
+    fn construct(_: &mut Context, args: &mut Args) -> TypResult<Template> {
+        Ok(Template::show(Self {
+            formula: args.expect("formula")?,
+            display: args.named("display")?.unwrap_or(false),
+        }))
+    }
+}
+
+impl Show for MathNode {
+    fn show(&self, ctx: &mut Context, styles: StyleChain) -> TypResult<Template> {
+        Ok(styles
+            .show(self, ctx, [
+                Value::Str(self.formula.clone()),
+                Value::Bool(self.display),
+            ])?
+            .unwrap_or_else(|| {
+                let mut template = Template::Text(self.formula.trim().into());
+                if self.display {
+                    template = Template::Block(template.pack());
+                }
+                template.monospaced()
+            }))
+    }
+}
-- 
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