Merge pull request #5 from ysangkok/master

Add SVG support

qrcode.js

@@ -116,8 +116,56 @@ var QRCode;
 		return android;
 	}
 
+	var svgDrawer = (function() {
+
+		var Drawing = function (el, htOption) {
+			this._el = el;
+			this._htOption = htOption;
+		};
+
+		Drawing.prototype.draw = function (oQRCode) {
+			var _htOption = this._htOption;
+			var _el = this._el;
+			var nCount = oQRCode.getModuleCount();
+			var nWidth = Math.floor(_htOption.width / nCount);
+			var nHeight = Math.floor(_htOption.height / nCount);
+
+			this.clear();
+
+			function makeSVG(tag, attrs) {
+				var el = document.createElementNS('http://www.w3.org/2000/svg', tag);
+				for (var k in attrs)
+					if (attrs.hasOwnProperty(k)) el.setAttribute(k, attrs[k]);
+				return el;
+			}
+
+			var svg = makeSVG("svg" , {'viewBox': '0 0 ' + String(nCount) + " " + String(nCount), 'width': '100%', 'height': '100%', 'fill': _htOption.colorLight});
+			svg.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink");
+			_el.appendChild(svg);
+
+			svg.appendChild(makeSVG("rect", {"fill": _htOption.colorDark, "width": "1", "height": "1", "id": "template"}));
+
+			for (var row = 0; row < nCount; row++) {
+				for (var col = 0; col < nCount; col++) {
+					if (oQRCode.isDark(row, col)) {
+						var child = makeSVG("use", {"x": String(row), "y": String(col)});
+						child.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template")
+						svg.appendChild(child);
+					}
+				}
+			}
+		};
+		Drawing.prototype.clear = function () {
+			while (this._el.hasChildNodes())
+				this._el.removeChild(this._el.lastChild);
+		};
+		return Drawing;
+	})();
+
+	var useSVG = document.documentElement.tagName.toLowerCase() === "svg";
+
 	// Drawing in DOM by using Table tag
-	var Drawing = !_isSupportCanvas() ? (function () {
+	var Drawing = useSVG ? svgDrawer : !_isSupportCanvas() ? (function () {
 		var Drawing = function (el, htOption) {
 			this._el = el;
 			this._htOption = htOption;
@@ -495,4 +543,4 @@ var QRCode;
 	 * @name QRCode.CorrectLevel
 	 */
 	QRCode.CorrectLevel = QRErrorCorrectLevel;
-})();
+})();