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Compress code using Base.each side-car.

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This commit is contained in:
Jürg Lehni 2011-03-04 20:55:11 +00:00
parent 1bd0127ece
commit f3663c04fe
1 changed files with 10 additions and 18 deletions
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28
src/color/GrayColor.js
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@ -67,25 +67,17 @@ var GrayColor = this.GrayColor = Color.extend({
return this._cssString;
}
}, new function() {
var fields = { beans: true };
// Using the standard NTSC conversion formula that is used for
// calculating the effective luminance of an RGB color:
// http://www.mathworks.com/support/solutions/en/data/1-1ASCU/index.html?solution=1-1ASCU
var componentWeights = {
red: 0.2989,
green: 0.5870,
blue: 0.114
};
Base.each(componentWeights, function(weight, key) {
fields['get' + Base.capitalize(key)] = function() {
return 1 - this._gray;
};
fields['set' + Base.capitalize(key)] = function(value) {
this._cssString = null;
this._gray = this._gray * (1 - weight) + weight * (1 - value);
};
});
return fields;
return Base.each({ red: 0.2989, green: 0.5870, blue: 0.114 },
function(weight, key) {
this['get' + Base.capitalize(key)] = function() {
return 1 - this._gray;
};
this['set' + Base.capitalize(key)] = function(value) {
this._cssString = null;
this._gray = this._gray * (1 - weight) + weight * (1 - value);
};
}, { beans: true });
});