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SVG.Set = SVG.invent({
// Initialize
create: function(members) {
// Set initial state
Array.isArray(members) ? this.members = members : this.clear()
}
// Add class methods
, extend: {
// Add element to set
add: function() {
var i, il, elements = [].slice.call(arguments)
for (i = 0, il = elements.length; i < il; i++)
this.members.push(elements[i])
return this
}
// Remove element from set
, remove: function(element) {
var i = this.index(element)
// remove given child
if (i > -1)
this.members.splice(i, 1)
return this
}
// Iterate over all members
, each: function(block) {
for (var i = 0, il = this.members.length; i < il; i++)
block.apply(this.members[i], [i, this.members])
return this
}
// Restore to defaults
, clear: function() {
// initialize store
this.members = []
return this
}
// Get the length of a set
, length: function() {
return this.members.length
}
// Checks if a given element is present in set
, has: function(element) {
return this.index(element) >= 0
}
// retuns index of given element in set
, index: function(element) {
return this.members.indexOf(element)
}
// Get member at given index
, get: function(i) {
return this.members[i]
}
// Get first member
, first: function() {
return this.get(0)
}
// Get last member
, last: function() {
return this.get(this.members.length - 1)
}
// Default value
, valueOf: function() {
return this.members
}
// Get the bounding box of all members included or empty box if set has no items
, bbox: function(){
var box = new SVG.BBox()
// return an empty box of there are no members
if (this.members.length == 0)
return box
// get the first rbox and update the target bbox
var rbox = this.members[0].rbox()
box.x = rbox.x
box.y = rbox.y
box.width = rbox.width
box.height = rbox.height
this.each(function() {
// user rbox for correct position and visual representation
box = box.merge(this.rbox())
})
return box
}
}
// Add parent method
, construct: {
// Create a new set
set: function(members) {
return new SVG.Set(members)
}
}
})
SVG.FX.Set = SVG.invent({
// Initialize node
create: function(set) {
// store reference to set
this.set = set
}
})
// Alias methods
SVG.Set.inherit = function() {
var m
, methods = []
// gather shape methods
for(var m in SVG.Shape.prototype)
if (typeof SVG.Shape.prototype[m] == 'function' && typeof SVG.Set.prototype[m] != 'function')
methods.push(m)
// apply shape aliasses
methods.forEach(function(method) {
SVG.Set.prototype[method] = function() {
for (var i = 0, il = this.members.length; i < il; i++)
if (this.members[i] && typeof this.members[i][method] == 'function')
this.members[i][method].apply(this.members[i], arguments)
return method == 'animate' ? (this.fx || (this.fx = new SVG.FX.Set(this))) : this
}
})
// clear methods for the next round
methods = []
// gather fx methods
for(var m in SVG.FX.prototype)
if (typeof SVG.FX.prototype[m] == 'function' && typeof SVG.FX.Set.prototype[m] != 'function')
methods.push(m)
// apply fx aliasses
methods.forEach(function(method) {
SVG.FX.Set.prototype[method] = function() {
for (var i = 0, il = this.set.members.length; i < il; i++)
this.set.members[i].fx[method].apply(this.set.members[i].fx, arguments)
return this
}
})
}
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