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Improve Color constructor and simplify serialization.

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This commit is contained in:
Jürg Lehni 2013-04-08 07:27:48 -07:00
parent e7c6bf3d9b
commit cf21da75fc
1 changed files with 30 additions and 35 deletions
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65
src/color/Color.js
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@ -243,52 +243,47 @@ var Color = this.Color = Base.extend(new function() {
components = Array.prototype.slice.call(components, 0, length);
} else {
if (argType === 'object') {
if (arg instanceof Color)
return arg.clone();
// Determine type from property names
type = 'hue' in arg
? 'lightness' in arg
? 'hsl'
: 'hsb'
: 'gray' in arg
? 'gray'
: 'rgb';
var properties = types[type];
for (var i = 0, l = properties.length; i < l; i++)
components[i] = arg[properties[i]];
alpha = arg.alpha;
if (arg._class === 'Color') {
type = arg._type;
components = arg._components.slice();
alpha = arg._alpha;
} else if (arg._class === 'Gradient') {
// TODO: Construct gradient
type = 'gradient';
} else {
// Determine type by presence of object property names
type = 'hue' in arg
? 'lightness' in arg
? 'hsl'
: 'hsb'
: 'gray' in arg
? 'gray'
: 'rgb';
var properties = types[type];
for (var i = 0, l = properties.length; i < l; i++)
components[i] = arg[properties[i]] || 0;
alpha = arg.alpha;
}
} else if (argType === 'string') {
components = arg.match(/^#[0-9a-f]{3,6}$/i)
? hexToRgb(arg)
: nameToRgb(arg);
type = 'rgb';
}
if (type) {
if (this._read)
this._read = 1;
} else {
// Default fallback: rgb black
type = 'rgb';
components = [0, 0, 0];
}
if (this._read && type)
this._read = 1;
}
this._type = type;
this._components = components;
// Default fallbacks: rgb, black
this._type = type || 'rgb';
this._components = components || (type === 'gray' ? [1] : [0, 0, 0]);
this._alpha = alpha;
},
_serialize: function(options) {
if (/^(gray|rgb)$/.test(this._type)) {
return this._components;
} else {
var properties = types[this._type],
res = {};
for (var i = 0, l = properties.length; i < l; i++)
res[properties[i]] = this._components[i];
if (this._alpha != null)
res.alpha = this._alpha;
return res;
}
// We can ommit the type for gray and rgb:
return /^(gray|rgb)$/.test(this._type)
? this._components
: [this._type].concat(this._components);
},
/**