Page background and foreground

4 files changed, 34 insertions, 4 deletions

diff --git a/tests/ref/layout/locate-group.png b/tests/ref/layout/locate-group.png
index e38a4a32..c9fe4065 100644
--- a/tests/ref/layout/locate-group.png
+++ b/tests/ref/layout/locate-group.png
diff --git a/tests/ref/layout/page-marginals.png b/tests/ref/layout/page-marginals.png
index 734973b6..78dd4591 100644
--- a/tests/ref/layout/page-marginals.png
+++ b/tests/ref/layout/page-marginals.png
diff --git a/tests/typ/layout/locate-group.typ b/tests/typ/layout/locate-group.typ
index 5c022f5a..c3a5ddab 100644
--- a/tests/typ/layout/locate-group.typ
+++ b/tests/typ/layout/locate-group.typ
@@ -32,10 +32,9 @@
   ..{
     let seen = ()
     for item in all {
-      if item.value not in seen {
-        seen.push(item.value)
-        (num(all, item.value), item.value)
-      }
+      if item.value in seen { continue }
+      (num(all, item.value), item.value)
+      seen.push(item.value)
     }
   }
 ))}
@@ -43,6 +42,34 @@
 As shown in #cite("abc") and #cite("def") and #cite("abc") ...
 
 ---
+// Test lovely sidebar.
+#let lovely = group("lovely")
+#let words = ("Juliet", "soft", "fair", "maid")
+#let regex = regex(words.map(p => "(" + p + ")").join("|"))
+#show word: regex as underline(word) + lovely.entry(_ => {})
+#set page(
+  paper: "a8",
+  margins: (left: 25pt, rest: 15pt),
+  foreground: lovely.all(entries => {
+    let seen = ()
+    for y in entries.map(it => it.y) {
+      if y in seen { continue }
+      let line = entries.filter(it => it.y == y)
+      for i, it in line {
+        let x = 10pt - 4pt * (line.len() - i - 1)
+        place(dx: x, dy: it.y - 8pt, [💗])
+      }
+      seen.push(y)
+    }
+  }),
+)
+
+But, soft! what light through yonder window breaks? It is the east, and Juliet
+is the sun. Arise, fair sun, and kill the envious moon, Who is already sick and
+pale with grief, That thou her maid art far more fair than she: Be not her maid,
+since she is envious.
+
+---
 // Test that `all` contains `me`.
 // Ref: false
 #show it: heading as group("headings").entry(
diff --git a/tests/typ/layout/page-marginals.typ b/tests/typ/layout/page-marginals.typ
index 6e8e3d85..9b323692 100644
--- a/tests/typ/layout/page-marginals.typ
+++ b/tests/typ/layout/page-marginals.typ
@@ -7,6 +7,9 @@
     text(0.8em)[_Chapter 1_]
   }),
   footer: page => v(5pt) + align(center)[\~ #page \~],
+  background: n => if n <= 2 {
+    place(center + horizon, circle(radius: 1cm, fill: luma(90%)))
+  }
 )
 
 But, soft! what light through yonder window breaks? It is the east, and Juliet