Adjust table inset behavior to the same as container's (#1979) (#2323)

crates/typst-library/src/layout/table.rs

@@ -114,8 +114,27 @@ pub struct TableElem {
     pub stroke: Option<Stroke>,
 
     /// How much to pad the cells' content.
-    #[default(Abs::pt(5.0).into())]
-    pub inset: Rel<Length>,
+    ///
+    /// ```example
+    /// #table(
+    ///   inset: 10pt,
+    ///   [Hello],
+    ///   [World],
+    /// )
+    ///
+    /// #table(
+    ///   columns: 2,
+    ///   inset: (
+    ///     x: 20pt,
+    ///     y: 10pt,
+    ///   ),
+    ///   [Hello],
+    ///   [World],
+    /// )
+    /// ```
+    #[fold]
+    #[default(Sides::splat(Abs::pt(5.0).into()))]
+    pub inset: Sides<Option<Rel<Length>>>,
 
     /// The contents of the table cells.
     #[variadic]
@@ -141,7 +160,7 @@ impl Layout for TableElem {
             .into_iter()
             .enumerate()
             .map(|(i, child)| {
-                let mut child = child.padded(Sides::splat(inset));
+                let mut child = child.padded(inset);
 
                 let x = i % cols;
                 let y = i / cols;

tests/typ/layout/table.typ

@@ -29,6 +29,38 @@
   [A], [B], [C]
 )
 
+---
+// Test inset.
+#table(
+  columns: 3,
+  inset: 10pt,
+  [A], [B], [C]
+)
+
+#table(
+  columns: 3,
+  inset: (y: 10pt),
+  [A], [B], [C]
+)
+
+#table(
+  columns: 3,
+  inset: (left: 20pt, rest: 10pt),
+  [A], [B], [C]
+)
+
+#table(
+  columns: 2,
+  inset: (
+    left: 20pt,
+    right: 5pt,
+    top: 10pt,
+    bottom: 3pt,
+  ),
+  [A],
+  [B],
+)
+
 ---
 // Ref: false
 #table()