# HG changeset patch
# User Sean Farley <sean.michael.farley@gmail.com>
# Date 1404869630 18000
# Node ID d7420a74b98da68cc700d5eb33035248b8989ec5
# Parent  37354e1ab2839764f1d6b572d47bf787ecc8dcac
graph: implement retina scaling in javascript

diff -r 37354e1ab283 -r d7420a74b98d kallithea/public/js/graph.js
--- a/kallithea/public/js/graph.js	Wed Feb 11 02:40:28 2015 +0100
+++ b/kallithea/public/js/graph.js	Tue Jul 08 20:33:50 2014 -0500
@@ -68,6 +68,15 @@
 		this.canvas.setAttribute('width',canvasWidth);
 		this.canvas.setAttribute('height',content.clientHeight);
 
+		// retina version needs to be scaled by 2x then halved via css
+		if (window.devicePixelRatio) {
+			this.canvas.setAttribute('width', canvasWidth * window.devicePixelRatio);
+			this.canvas.setAttribute('height', content.clientHeight * window.devicePixelRatio);
+			this.canvas.style.width = canvasWidth + "px";
+			this.canvas.style.height = content.clientHeight + "px";
+			this.ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
+		}
+
 		var lineCount = 1;
 		for (var i=0;i<data.length;i++) {
 			var in_l = data[i][1];