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jquery-qrcode
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Adds position options. Now accepts img elements as fill and background.

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pull/2/head
Lars Jung 12 years ago
parent 718dc342ad
commit cf982e4df5
3 changed files with 57 additions and 39 deletions
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19
src/demo/index.html
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@ -35,10 +35,10 @@
<hr/>
<label for="size">SIZE:</label>
<input id="size" type="range" value="400" min="100" max="1000" step="50" />
<label for="color">COLOR</label>
<input id="color" type="color" value="#333333" />
<label for="bg-color">BACKGROUND COLOR</label>
<input id="bg-color" type="color" value="#ffffff" />
<label for="fill">FILL</label>
<input id="fill" type="color" value="#333333" />
<label for="background">BACKGROUND</label>
<input id="background" type="color" value="#ffffff" />
<label for="text">CONTENT</label>
<textarea id="text">http://larsjung.de/qrcode/</textarea>
<hr/>
@ -69,10 +69,15 @@
<option value="4">4 - Image-Box</option>
</select>
<hr/>
<label for="msize">SIZE:</label>
<input id="msize" type="range" value="11" min="0" max="40" step="1" />
<label for="mposx">POS X:</label>
<input id="mposx" type="range" value="50" min="0" max="100" step="1" />
<label for="mposy">POS Y:</label>
<input id="mposy" type="range" value="50" min="0" max="100" step="1" />
<hr/>
<label for="label">LABEL</label>
<input id="label" type="text" value="jQuery.qrcode" />
<label for="fontsize">LABEL SIZE:</label>
<input id="fontsize" type="range" value="11" min="1" max="20" step="1" />
<label for="font">FONT NAME</label>
<input id="font" type="text" value="Ubuntu" />
<label for="fontcolor">FONT COLOR:</label>
@ -80,8 +85,6 @@
<hr/>
<label for="image">IMAGE</label>
<input id="image" type="file" />
<label for="imagesize">IMAGE SIZE:</label>
<input id="imagesize" type="range" value="13" min="1" max="30" step="1" />
</div>
<img id="img-buffer" src="dummy.png" />

19
src/demo/scripts.js
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@ -6,8 +6,9 @@ var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]',
["minversion", ""],
["quiet", "modules"],
["radius", "%"],
["fontsize", "%"],
["imagesize", "%"]
["msize", "%"],
["mposx", "%"],
["mposy", "%"]
],
updateGui = function () {
@ -27,8 +28,10 @@ var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]',
render: $("#render").val(),
ecLevel: $("#eclevel").val(),
minVersion: parseInt($("#minversion").val(), 10),
color: $("#color").val(),
bgColor: $("#bg-color").val(),
fill: $("#fill").val(),
background: $("#background").val(),
text: $("#text").val(),
size: parseInt($("#size").val(), 10),
radius: parseInt($("#radius").val(), 10) * 0.01,
@ -36,13 +39,15 @@ var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]',
mode: parseInt($("#mode").val(), 10),
mSize: parseInt($("#msize").val(), 10) * 0.01,
mPosX: parseInt($("#mposx").val(), 10) * 0.01,
mPosY: parseInt($("#mposy").val(), 10) * 0.01,
label: $("#label").val(),
labelsize: parseInt($("#fontsize").val(), 10) * 0.01,
fontname: $("#font").val(),
fontcolor: $("#fontcolor").val(),
image: $("#img-buffer")[0],
imagesize: parseInt($("#imagesize").val(), 10) * 0.01
image: $("#img-buffer")[0]
};
$("#container").empty().qrcode(options);

54
src/jquery.qrcode.js
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@ -79,16 +79,17 @@
drawBackgroundLabel = function (qr, context, settings) {
var font = "bold " + (settings.labelsize * settings.size) + "px " + settings.fontname,
var size = settings.size,
font = "bold " + (settings.mSize * size) + "px " + settings.fontname,
ctx = $('<canvas/>')[0].getContext("2d");
ctx.font = font;
var w = ctx.measureText(settings.label).width,
sh = settings.labelsize,
sw = w / settings.size,
sl = (1 - sw)/2,
st = (1 - sh)/2,
sh = settings.mSize,
sw = w / size,
sl = (1 - sw) * settings.mPosX,
st = (1 - sh) * settings.mPosY,
sr = sl + sw,
sb = st + sh,
pad = 0.01;
@ -102,9 +103,8 @@
}
context.fillStyle = settings.fontcolor;
context.textAlign = "center";
context.font = font;
context.fillText($("#label").val(), 0.5 * settings.size, 0.5 * settings.size + 0.3 * settings.labelsize * settings.size);
context.fillText($("#label").val(), sl*size, st*size + 0.75 * settings.mSize * size);
},
drawBackgroundImage = function (qr, context, settings) {
@ -112,10 +112,10 @@
var size = settings.size,
w = settings.image.naturalWidth || 1,
h = settings.image.naturalHeight || 1,
sh = settings.imagesize,
sh = settings.mSize,
sw = sh * w / h,
sl = (1 - sw)/2,
st = (1 - sh)/2,
sl = (1 - sw) * settings.mPosX,
st = (1 - sh) * settings.mPosY,
sr = sl + sw,
sb = st + sh,
pad = 0.01;
@ -133,8 +133,10 @@
drawBackground = function (qr, context, settings) {
if (settings.bgColor) {
context.fillStyle = settings.bgColor;
if ($(settings.background).is('img')) {
context.drawImage(settings.background, 0, 0, settings.size, settings.size);
} else if (settings.background) {
context.fillStyle = settings.background;
context.fillRect(settings.left, settings.top, settings.size, settings.size);
}
@ -270,8 +272,14 @@
fn(qr, context, settings, l, t, w, row, col);
}
}
context.fillStyle = settings.color;
if ($(settings.fill).is('img')) {
context.clip();
context.drawImage(settings.fill, 0, 0, settings.size, settings.size);
context.restore();
} else {
context.fillStyle = settings.fill;
context.fill();
}
},
// Draws QR code to the given `canvas` and returns it.
@ -314,7 +322,7 @@
// some shortcuts to improve compression
var settings_size = settings.size,
settings_bgColor = settings.bgColor,
settings_bgColor = settings.background,
math_floor = Math.floor,
moduleCount = qr.moduleCount,
@ -338,7 +346,7 @@
margin: 0,
width: moduleSize,
height: moduleSize,
'background-color': settings.color
'background-color': settings.fill
},
$div = $('<div/>').data('qrcode', qr).css(containerCSS);
@ -399,11 +407,11 @@
// size in pixel
size: 200,
// code color
color: '#000',
// code color or image element
fill: '#000',
// background color, `null` for transparent background
bgColor: null,
// background color or image element, `null` for transparent background
background: null,
// content
text: 'no text',
@ -422,13 +430,15 @@
// 4: image box
mode: 0,
mSize: 0.1,
mPosX: 0.5,
mPosY: 0.5,
label: 'no label',
labelsize: 0.1,
fontname: 'sans',
fontcolor: '#000',
image: null,
imagesize: 0.1
image: null
};
// Register the plugin

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