From 8b03c5af547f66a86d9978ea5aff54c93a768164 Mon Sep 17 00:00:00 2001
From: DD Liu <liudi@media.mit.edu>
Date: Sun, 24 May 2020 22:18:55 -0400
Subject: [PATCH] Set the rotation center of bitmaps with no rotation center to
 the center of the stage

---
 src/containers/paper-canvas.jsx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/containers/paper-canvas.jsx b/src/containers/paper-canvas.jsx
index 2b2ce63a..256f864b 100644
--- a/src/containers/paper-canvas.jsx
+++ b/src/containers/paper-canvas.jsx
@@ -148,6 +148,13 @@ class PaperCanvas extends React.Component {
                 if (!this.queuedImageToLoad) return;
                 this.queuedImageToLoad = null;
 
+                if (typeof rotationCenterX === 'undefined') {
+                    rotationCenterX = imgElement.width / 2;
+                }
+                if (typeof rotationCenterY === 'undefined') {
+                    rotationCenterY = imgElement.height / 2;
+                }
+
                 getRaster().drawImage(
                     imgElement,
                     (ART_BOARD_WIDTH / 2) - rotationCenterX,