From 6c2f72d30a245e08eab19a1ed75591a3d0582d78 Mon Sep 17 00:00:00 2001
From: Zeno Zeng <zenoofzeng@gmail.com>
Date: Wed, 7 Jul 2021 00:07:55 +0800
Subject: [PATCH] fix: push/pop transformMatrixStack when save/restore, for
 https://github.com/zenozeng/p5.js-svg/issues/191

---
 context.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/context.js b/context.js
index 78965b5..9410415 100644
--- a/context.js
+++ b/context.js
@@ -486,6 +486,10 @@ export default (function () {
         parent.appendChild(group);
         this.__currentElement = group;
         this.__stack.push(this.__getStyleState());
+        if (!this.__transformMatrixStack) {
+            this.__transformMatrixStack = [];
+        }
+        this.__transformMatrixStack.push(this.getTransform());
     };
 
     /**
@@ -500,6 +504,9 @@ export default (function () {
         }
         var state = this.__stack.pop();
         this.__applyStyleState(state);
+        if (this.__transformMatrixStack && this.__transformMatrixStack.length > 0) {
+            this.setTransform(this.__transformMatrixStack.pop())
+        }
     };
 
     /**