90 lines
3.4 KiB
JavaScript
90 lines
3.4 KiB
JavaScript
/*
|
|
Load the image module.
|
|
*/
|
|
Ox.load('Image', function() {
|
|
|
|
/*
|
|
Load a sample image (about which you can read more on
|
|
<a href="see http://en.wikipedia.org/wiki/Lenna">Wikipedia</a>).
|
|
*/
|
|
Ox.Image('png/lenna256.png', function(image) {
|
|
|
|
/*
|
|
Create some DOM elements.
|
|
*/
|
|
var $body = Ox.$('body'),
|
|
$select = Ox.$('<select>').on({change: change}).appendTo($body),
|
|
$image = Ox.$('<img>').attr({src: image.src()}).appendTo($body);
|
|
|
|
[
|
|
'Method...', 'src("png/lenna256.png")',
|
|
'blur(2)', 'blur(4)',
|
|
'channel("r")', 'channel("g")', 'channel("b")',
|
|
'channel("h")', 'channel("s")', 'channel("l")',
|
|
'contour()',
|
|
'depth(1)', 'depth(2)', 'depth(4)',
|
|
'drawCircle([128, 128], 64, {"fill": "rgba(0, 0, 0, 0.5)"})',
|
|
'drawLine([[64, 64], [192, 192]], {"color": "green", "width": 2})',
|
|
'drawPath([[64, 64], [192, 64], [64, 192]], {"close": true})',
|
|
'drawRectangle([64, 64], [128, 128], {"fill": "red", "width": 0})',
|
|
'drawText("?", [16, 240], {"color": "blue", "font": "64px Arial"})',
|
|
'edges()', 'emboss()',
|
|
'encode("secret")', 'decode()',
|
|
'encode("secret", false)', 'decode(false)',
|
|
'encode("secret", 1)', 'decode(1)',
|
|
'encode("secret", false, 15)', 'decode(false, 15)',
|
|
'encode("secret", 127)', 'decode(127)',
|
|
'filter([0, 1, 0, 1, -2, 1, 0, 1, 0])',
|
|
'hue(-60)', 'hue(60)',
|
|
'invert()',
|
|
'lightness(-0.5)', 'lightness(0.5)',
|
|
'map(function(v, xy) { return Ox.sum(xy) % 2 ? [0, 0, 0] : v; })',
|
|
'mosaic(4)', 'motionBlur()',
|
|
'photocopy()', 'pixel([16, 16], [255, 255, 255])', 'posterize()',
|
|
'saturation(-0.5)', 'saturation(0.5)',
|
|
'sharpen()', 'solarize()'
|
|
].forEach(function(method) {
|
|
Ox.$('<option>').html(method).appendTo($select);
|
|
});
|
|
|
|
function change() {
|
|
var value = $select.val(),
|
|
match = value.match(/^(\w+)\((.*?)\)$/),
|
|
fn = match[1], args;
|
|
/*
|
|
The <code>map</code> method takes a function as its argument, which
|
|
we can't <code>JSON.parse</code>, but have to <code>eval</code>.
|
|
*/
|
|
try {
|
|
args = JSON.parse('[' + match[2] + ']');
|
|
} catch(e) {
|
|
args = [eval('f = ' + match[2])];
|
|
}
|
|
/*
|
|
The <code>src</code> and <code>encode</code> methods are
|
|
asynchronous and take a callback function.
|
|
*/
|
|
if (fn == 'src' || fn == 'encode') {
|
|
image[fn].apply(null, args.concat(function(image) {
|
|
$image.attr({src: image.src()});
|
|
}));
|
|
/*
|
|
The <code>decode</code> method is asynchronous too, and its callback
|
|
function gets passed a string.
|
|
*/
|
|
} else if (fn == 'decode') {
|
|
image[fn].apply(null, args.concat(function(str) {
|
|
alert(str);
|
|
}));
|
|
/*
|
|
All other methods simply return the image.
|
|
*/
|
|
} else {
|
|
$image.attr({src: image[fn].apply(null, args).src()});
|
|
}
|
|
$select.val('Method...');
|
|
}
|
|
|
|
});
|
|
|
|
});
|