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qrcodejs
kopia lustrzana https://github.com/viljoviitanen/qrcodejs
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add SVG support

refactoring
Janus 2013-06-11 16:10:25 +02:00
rodzic 9c38ec734b
commit 1b87ce8ca6
2 zmienionych plików z 87 dodań i 2 usunięć
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37
index.svg 100644
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@ -0,0 +1,37 @@
<?xml version="1.0" standalone="yes"?>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="-50 0 200 100">
<g id="qrcode"/>
<foreignObject x="-50" y="0" width="100" height="100">
<body xmlns="http://www.w3.org/1999/xhtml" style="padding:0; margin:0">
<div style="padding:inherit; margin:inherit; height:100%">
<textarea id="text" style="height:100%; width:100%; position:absolute; margin:inherit; padding:inherit">james</textarea>
</div>
<script type="application/ecmascript" src="qrcode.js"></script>
<script type="application/ecmascript">
var elem = document.getElementById("qrcode");
var qrcode = new QRCode(elem, {
width : 100,
height : 100
});
function makeCode () {
var elText = document.getElementById("text");
if (elText.value === "") {
//alert("Input a text");
//elText.focus();
return;
}
qrcode.makeCode(elText.value);
}
makeCode();
document.getElementById("text").onkeyup = function (e) {
makeCode();
};
</script>
</body>
</foreignObject>
</svg>
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52
qrcode.js
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@ -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;
})();
})();