From f97d593c84f9af889ac6ab141997b8c697833472 Mon Sep 17 00:00:00 2001
From: Nathan Muir <ndmuir@gmail.com>
Date: Thu, 11 Jul 2013 12:16:34 +1000
Subject: [PATCH] Fixed issue with fabric.Line when browser doesn't support
 'setLineDash' (firefox & IE 10). Example at http://jsfiddle.net/taRvU/1/

---
 src/shapes/line.class.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/shapes/line.class.js b/src/shapes/line.class.js
index e6ccf340..1ad676a4 100644
--- a/src/shapes/line.class.js
+++ b/src/shapes/line.class.js
@@ -120,8 +120,11 @@
      * @param {CanvasRenderingContext2D} ctx Context to render on
      */
     _renderDashedStroke: function(ctx) {
-      var x = this.width === 1 ? 0 : -this.width / 2,
-          y = this.height === 1 ? 0 : -this.height / 2;
+      var
+        xMult = this.x1 <= this.x2 ? -1 : 1,
+        yMult = this.y1 <= this.y2 ? -1 : 1,
+        x = this.width === 1 ? 0 : xMult * this.width / 2,
+        y = this.height === 1 ? 0 : yMult * this.height / 2;
 
       ctx.beginPath();
       fabric.util.drawDashedLine(ctx, x, y, -x, -y, this.strokeDashArray);