From 9ee2fdde8dc3a7ca68ccec1cf0eabfca2e367830 Mon Sep 17 00:00:00 2001
From: Mc-Zen <alphabetagamma11@hotmail.com>
Date: Sun, 31 Mar 2024 12:54:38 +0200
Subject: [PATCH] [fix] equation numbering with circuits

When equation numbering is turned on, display-style braces as used with lstick, rstick and gate inputs/outputs, are not drawn correctly.

We could use non-block math but then the bounding box of the rectangles is not measured correctly. Instead we just turn equation numbering off for the entire circuit.

fixes #3
---
 src/draw-functions.typ                    |  13 +++++++------
 src/quill.typ                             |   3 ++-
 tests/decorations/lstick rstick/ref/6.png | Bin 0 -> 472 bytes
 tests/decorations/lstick rstick/test.typ  |  10 +++++++++-
 4 files changed, 18 insertions(+), 8 deletions(-)
 create mode 100644 tests/decorations/lstick rstick/ref/6.png

diff --git a/src/draw-functions.typ b/src/draw-functions.typ
index 510fe0c..e4f0c65 100644
--- a/src/draw-functions.typ
+++ b/src/draw-functions.typ
@@ -8,14 +8,15 @@
 
 
 
-// create a sized brace with given length. 
+// Creates a sized brace with given length. 
 // `brace` can be auto, defaulting to "{" if alignment is right
-// and "}" if alignment is left. 
+// and "}" if alignment is left. Other possible values are 
+// "[", "]", "|", "{", and "}".
 #let create-brace(brace, alignment, length) = {
-  let brace-symbol = if brace == auto {
-      if alignment == right {"{"} else {"}"} 
-    } else { brace }
-  return $ lr(#brace-symbol#block(height: length)) $
+  if brace == auto {
+    brace = if alignment == right {"{"} else {"}"} 
+  }
+  return $ lr(#brace, size: length) $
 }
 
 
diff --git a/src/quill.typ b/src/quill.typ
index dd836c4..57273fc 100644
--- a/src/quill.typ
+++ b/src/quill.typ
@@ -71,7 +71,8 @@
     panic("Unexpected named argument '" + children.named().keys().at(0) + "' for quantum-circuit()")
   }
   set text(color, size: font-size)
-  
+  set math.equation(numbering: none)
+
   style(styles => {
   
   // Parameter object to pass to draw-function containing current style info
diff --git a/tests/decorations/lstick rstick/ref/6.png b/tests/decorations/lstick rstick/ref/6.png
new file mode 100644
index 0000000000000000000000000000000000000000..a603322b42cc53a6b2be20cf209b80aae97368e1
GIT binary patch
literal 472
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literal 0
HcmV?d00001

diff --git a/tests/decorations/lstick rstick/test.typ b/tests/decorations/lstick rstick/test.typ
index 6fb899f..40733f1 100644
--- a/tests/decorations/lstick rstick/test.typ	
+++ b/tests/decorations/lstick rstick/test.typ	
@@ -36,4 +36,12 @@
 
 #quantum-circuit(
   1, rstick("very long rstick")
-)
\ No newline at end of file
+)
+
+#pagebreak()
+
+// lstick with equation numbering
+#set math.equation(numbering: "1")
+#quantum-circuit(
+  lstick($|0〉$, brace: "{"), 1
+)