From 7bf3819492f50d41977383ff06d1830c2c43caa4 Mon Sep 17 00:00:00 2001
From: Jason Park <parkjs814@gmail.com>
Date: Fri, 20 May 2016 03:34:45 -0500
Subject: [PATCH] add dp

---
 css/stylesheet.css   |  1 +
 js/module/array2d.js | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/css/stylesheet.css b/css/stylesheet.css
index fc7c419..a1e9683 100644
--- a/css/stylesheet.css
+++ b/css/stylesheet.css
@@ -136,6 +136,7 @@ section {
     bottom: 50%;
     left: 0;
     right: 0;
+    overflow: scroll;
 }
 
 .tab_container {
diff --git a/js/module/array2d.js b/js/module/array2d.js
index 3606bee..3939de0 100644
--- a/js/module/array2d.js
+++ b/js/module/array2d.js
@@ -163,8 +163,18 @@ Array2DTracer.prototype.refresh = function () {
     Tracer.prototype.refresh.call(this);
 
     var $parent = $table.parent();
-    $table.css('margin-top', $parent.height() / 2 - $table.height() / 2);
-    $table.css('margin-left', $parent.width() / 2 - $table.width() / 2);
+    var top = $parent.height() / 2 - $table.height() / 2;
+    var left = $parent.width() / 2 - $table.width() / 2;
+    if (top < 0) {
+        $table.css('margin-top', 0);
+        $parent.scrollTop(-top);
+    }
+    else $table.css('margin-top', top);
+    if (left < 0) {
+        $table.css('margin-left', 0);
+        $parent.scrollLeft(-left);
+    }
+    else $table.css('margin-left', left);
 };
 
 // Override
-- 
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