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var ShapeList = Fiber.extend(function(base){
var exports = {}
exports.init = function(){
this.shapes = []
this.workline = null
}
exports.add = function(shape){
this.shapes.push(shape)
}
exports.remove = function(shape){
var index = this.shapes.indexOf(shape)
if (index !== -1) {
this.shapes.splice(index, 1)
}
}
exports.removeSegment = function (segment){
var shape = segment.shape
var head = shape.getHeadAtIndex(segment.head)
var tail = shape.getTailAtIndex(segment.tail)
this.remove(shape)
shape.destroy()
if (head) {
this.add(head)
head.build()
}
if (tail) {
this.add(tail)
tail.build()
}
}
exports.findClosestPoint = function (p){
var point
for (var i = 0; i < this.shapes.length; i++) {
point = this.shapes[i].hasPointNear(p)
if (point) return { point: point, shape: this.shapes[i] }
}
return null
}
exports.findClosestEndPoint = function (p){
var point
for (var i = 0; i < this.shapes.length; i++) {
point = this.shapes[i].hasEndPointNear(p)
if (point) return { point: point, shape: this.shapes[i] }
}
return null
}
exports.findClosestSegment = function (p){
var segment = null, closest_segment = null
for (var i = 0; i < this.shapes.length; i++) {
segment = this.shapes[i].hasSegmentNear(p, 10)
if (segment && (! closest_segment || segment.distance < closest_segment.distance)) {
closest_segment = segment
closest_segment.shape = this.shapes[i]
}
}
return closest_segment
}
exports.forEach = function(fn){
this.shapes.forEach(fn)
}
return exports
})
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