X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-canvas.js;h=e531ece4ba73566b0a5df54ab391fccd687d6935;hb=4ecb55b5c66f7723d1f5c588af62855bd4c06faa;hp=0e1bc751ef558e77e02b9179bda4c333268c346b;hpb=20bb4e9d1e3da5bedaee7584a9e91aefd9e3a6d4;p=dygraphs.git

diff --git a/dygraph-canvas.js b/dygraph-canvas.js
index 0e1bc75..e531ece 100644
--- a/dygraph-canvas.js
+++ b/dygraph-canvas.js
@@ -57,6 +57,8 @@ var DygraphCanvasRenderer = function(dygraph, element, elementContext, layout) {
   this.height = this.element.height;
   this.width = this.element.width;
 
+  this.elementContext.save();
+
   // --- check whether everything is ok before we return
   if (!this.isIE && !(DygraphCanvasRenderer.isSupported(this.element)))
       throw "Canvas is not supported.";
@@ -125,6 +127,11 @@ DygraphCanvasRenderer.prototype.clear = function() {
   context.clearRect(0, 0, this.width, this.height);
 };
 
+DygraphCanvasRenderer.prototype.onDoneDrawing = function() {
+  // balances the save called in the constructor.
+  this.elementContext.restore();
+}
+
 /**
  * Checks whether the browser supports the <canvas> tag.
  * @private