From 6bbd6d2dd5343c6ed71206369fd76f2ffe4b8f4f Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Sat, 12 Aug 2017 14:42:19 +1000
Subject: [PATCH] limit length of clayout field summary

---
 aqt/clayout.py | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/aqt/clayout.py b/aqt/clayout.py
index 796ca0053..92c3c6d1b 100644
--- a/aqt/clayout.py
+++ b/aqt/clayout.py
@@ -102,6 +102,7 @@ class CardLayout(QDialog):
 
     def _fieldsOnTemplate(self, fmt):
         matches = re.findall("{{[^#/}]+?}}", fmt)
+        charsAllowed = 30
         result = collections.OrderedDict()
         for m in matches:
             # strip off mustache
@@ -112,9 +113,16 @@ class CardLayout(QDialog):
             if m == "FrontSide":
                 continue
 
-            result[m] = True
+            if m not in result:
+                result[m] = True
+                charsAllowed -= len(m)
+                if charsAllowed <= 0:
+                    break
 
-        return "+".join(result.keys())
+        str = "+".join(result.keys())
+        if charsAllowed <= 0:
+            str += "+..."
+        return str
 
     def _isCloze(self):
         return self.model['type'] == MODEL_CLOZE