/*!
* Paper.js v0.9.15 - The Swiss Army Knife of Vector Graphics Scripting.
* http://paperjs.org/
*
* Copyright (c) 2011 - 2013, Juerg Lehni & Jonathan Puckey
* http://lehni.org/ & http://jonathanpuckey.com/
*
* Distributed under the MIT license. See LICENSE file for details.
*
* All rights reserved.
*
* Date: Sun Dec 1 23:54:52 2013 +0100
*
***
*
* straps.js - Class inheritance library with support for bean-style accessors
*
* Copyright (c) 2006 - 2013 Juerg Lehni
* http://lehni.org/
*
* Distributed under the MIT license.
*
***
*
* acorn.js
* http://marijnhaverbeke.nl/acorn/
*
* Acorn is a tiny, fast JavaScript parser written in JavaScript,
* created by Marijn Haverbeke and released under an MIT license.
*
*/
var paper = new function(undefined) {
var Base = new function() {
var hidden = /^(statics|generics|preserve|enumerable|prototype|toString|valueOf)$/,
slice = [].slice,
forEach = [].forEach || function(iter, bind) {
for (var i = 0, l = this.length; i < l; i++)
iter.call(bind, this[i], i, this);
},
forIn = function(iter, bind) {
for (var i in this)
if (this.hasOwnProperty(i))
iter.call(bind, this[i], i, this);
},
create = Object.create || function(proto) {
return { __proto__: proto };
},
describe = Object.getOwnPropertyDescriptor || function(obj, name) {
var get = obj.__lookupGetter__ && obj.__lookupGetter__(name);
return get
? { get: get, set: obj.__lookupSetter__(name),
enumerable: true, configurable: true }
: obj.hasOwnProperty(name)
? { value: obj[name], enumerable: true,
configurable: true, writable: true }
: null;
},
_define = Object.defineProperty || function(obj, name, desc) {
if ((desc.get || desc.set) && obj.__defineGetter__) {
if (desc.get)
obj.__defineGetter__(name, desc.get);
if (desc.set)
obj.__defineSetter__(name, desc.set);
} else {
obj[name] = desc.value;
}
return obj;
},
define = function(obj, name, desc) {
delete obj[name];
return _define(obj, name, desc);
};
function inject(dest, src, enumerable, base, preserve, generics) {
var beans;
function field(name, val, dontCheck, generics) {
var val = val || (val = describe(src, name))
&& (val.get ? val : val.value);
if (typeof val === 'string' && val[0] === '#')
val = dest[val.substring(1)] || val;
var isFunc = typeof val === 'function',
res = val,
prev = preserve || isFunc
? (val && val.get ? name in dest : dest[name]) : null,
bean;
if ((dontCheck || val !== undefined && src.hasOwnProperty(name))
&& (!preserve || !prev)) {
if (isFunc && prev)
val.base = prev;
if (isFunc && beans && val.length === 0
&& (bean = name.match(/^(get|is)(([A-Z])(.*))$/)))
beans.push([ bean[3].toLowerCase() + bean[4], bean[2] ]);
if (!res || isFunc || !res.get || typeof res.get !== 'function'
|| res.get.length !== 0)
res = { value: res, writable: true };
if ((describe(dest, name)
|| { configurable: true }).configurable) {
res.configurable = true;
res.enumerable = enumerable;
}
define(dest, name, res);
}
if (generics && isFunc && (!preserve || !generics[name])) {
generics[name] = function(bind) {
return bind && dest[name].apply(bind,
slice.call(arguments, 1));
};
}
}
if (src) {
beans = [];
for (var name in src)
if (src.hasOwnProperty(name) && !hidden.test(name))
field(name, null, true, generics);
field('toString');
field('valueOf');
for (var i = 0, l = beans.length; i < l; i++) {
var bean = beans[i],
part = bean[1];
field(bean[0], {
get: dest['get' + part] || dest['is' + part],
set: dest['set' + part]
}, true);
}
}
return dest;
}
function each(obj, iter, bind) {
if (obj)
('length' in obj && !obj.getLength
&& typeof obj.length === 'number'
? forEach
: forIn).call(obj, iter, bind = bind || obj);
return bind;
}
function copy(dest, source) {
for (var i in source)
if (source.hasOwnProperty(i))
dest[i] = source[i];
return dest;
}
function clone(obj) {
return copy(new obj.constructor(), obj);
}
return inject(function Base() {
for (var i = 0, l = arguments.length; i < l; i++)
copy(this, arguments[i]);
}, {
inject: function(src) {
if (src) {
var proto = this.prototype,
base = Object.getPrototypeOf(proto).constructor,
statics = src.statics === true ? src : src.statics;
if (statics != src)
inject(proto, src, src.enumerable, base && base.prototype,
src.preserve, src.generics && this);
inject(this, statics, true, base, src.preserve);
}
for (var i = 1, l = arguments.length; i < l; i++)
this.inject(arguments[i]);
return this;
},
extend: function() {
var base = this,
ctor;
for (var i = 0, l = arguments.length; i < l; i++)
if (ctor = arguments[i].initialize)
break;
ctor = ctor || function() {
base.apply(this, arguments);
};
ctor.prototype = create(this.prototype);
define(ctor.prototype, 'constructor',
{ value: ctor, writable: true, configurable: true });
inject(ctor, this, true);
return arguments.length ? this.inject.apply(ctor, arguments) : ctor;
}
}, true).inject({
inject: function() {
for (var i = 0, l = arguments.length; i < l; i++)
inject(this, arguments[i], arguments[i].enumerable);
return this;
},
extend: function() {
var res = create(this);
return res.inject.apply(res, arguments);
},
each: function(iter, bind) {
return each(this, iter, bind);
},
clone: function() {
return new this.constructor(this);
},
statics: {
each: each,
create: create,
define: define,
describe: describe,
copy: copy,
clone: function(obj) {
return copy(new obj.constructor(), obj);
},
isPlainObject: function(obj) {
var ctor = obj != null && obj.constructor;
return ctor && (ctor === Object || ctor === Base
|| ctor.name === 'Object');
},
pick: function() {
for (var i = 0, l = arguments.length; i < l; i++)
if (arguments[i] !== undefined)
return arguments[i];
return null;
}
}
});
};
if (typeof module !== 'undefined')
module.exports = Base;
Base.inject({
generics: true,
toString: function() {
return this._id != null
? (this._class || 'Object') + (this._name
? " '" + this._name + "'"
: ' @' + this._id)
: '{ ' + Base.each(this, function(value, key) {
if (!/^_/.test(key)) {
var type = typeof value;
this.push(key + ': ' + (type === 'number'
? Formatter.instance.number(value)
: type === 'string' ? "'" + value + "'" : value));
}
}, []).join(', ') + ' }';
},
exportJSON: function(options) {
return Base.exportJSON(this, options);
},
toJSON: function() {
return Base.serialize(this);
},
_set: function(props, exclude) {
if (props && Base.isPlainObject(props)) {
var orig = props._filtering || props;
for (var key in orig) {
if (key in this && orig.hasOwnProperty(key)
&& (!exclude || !exclude[key])) {
var value = props[key];
if (value !== undefined)
this[key] = value;
}
}
return true;
}
},
statics: {
exports: {},
extend: function extend() {
var res = extend.base.apply(this, arguments),
name = res.prototype._class;
if (name && !Base.exports[name])
Base.exports[name] = res;
return res;
},
equals: function(obj1, obj2) {
function checkKeys(o1, o2) {
for (var i in o1)
if (o1.hasOwnProperty(i) && !o2.hasOwnProperty(i))
return false;
return true;
}
if (obj1 === obj2)
return true;
if (obj1 && obj1.equals)
return obj1.equals(obj2);
if (obj2 && obj2.equals)
return obj2.equals(obj1);
if (Array.isArray(obj1) && Array.isArray(obj2)) {
if (obj1.length !== obj2.length)
return false;
for (var i = 0, l = obj1.length; i < l; i++) {
if (!Base.equals(obj1[i], obj2[i]))
return false;
}
return true;
}
if (obj1 && typeof obj1 === 'object'
&& obj2 && typeof obj2 === 'object') {
if (!checkKeys(obj1, obj2) || !checkKeys(obj2, obj1))
return false;
for (var i in obj1) {
if (obj1.hasOwnProperty(i) && !Base.equals(obj1[i], obj2[i]))
return false;
}
return true;
}
return false;
},
read: function(list, start, length, options) {
if (this === Base) {
var value = this.peek(list, start);
list._index++;
list.__read = 1;
return value;
}
var proto = this.prototype,
readIndex = proto._readIndex,
index = start || readIndex && list._index || 0;
if (!length)
length = list.length - index;
var obj = list[index];
if (obj instanceof this
|| options && options.readNull && obj == null && length <= 1) {
if (readIndex)
list._index = index + 1;
return obj && options && options.clone ? obj.clone() : obj;
}
obj = Base.create(this.prototype);
if (readIndex)
obj.__read = true;
if (options)
obj.__options = options;
obj = obj.initialize.apply(obj, index > 0 || length < list.length
? Array.prototype.slice.call(list, index, index + length)
: list) || obj;
if (readIndex) {
list._index = index + obj.__read;
list.__read = obj.__read;
delete obj.__read;
if (options)
delete obj.__options;
}
return obj;
},
peek: function(list, start) {
return list[list._index = start || list._index || 0];
},
readAll: function(list, start, options) {
var res = [], entry;
for (var i = start || 0, l = list.length; i < l; i++) {
res.push(Array.isArray(entry = list[i])
? this.read(entry, 0, 0, options)
: this.read(list, i, 1, options));
}
return res;
},
readNamed: function(list, name, start, length, options) {
var value = this.getNamed(list, name),
hasObject = value !== undefined;
if (hasObject) {
var filtered = list._filtered;
if (!filtered) {
filtered = list._filtered = Base.create(list[0]);
filtered._filtering = list[0];
}
filtered[name] = undefined;
}
return this.read(hasObject ? [value] : list, start, length, options);
},
getNamed: function(list, name) {
var arg = list[0];
if (list._hasObject === undefined)
list._hasObject = list.length === 1 && Base.isPlainObject(arg);
if (list._hasObject)
return name ? arg[name] : list._filtered || arg;
},
hasNamed: function(list, name) {
return !!this.getNamed(list, name);
},
isPlainValue: function(obj) {
return this.isPlainObject(obj) || Array.isArray(obj);
},
serialize: function(obj, options, compact, dictionary) {
options = options || {};
var root = !dictionary,
res;
if (root) {
options.formatter = new Formatter(options.precision);
dictionary = {
length: 0,
definitions: {},
references: {},
add: function(item, create) {
var id = '#' + item._id,
ref = this.references[id];
if (!ref) {
this.length++;
var res = create.call(item),
name = item._class;
if (name && res[0] !== name)
res.unshift(name);
this.definitions[id] = res;
ref = this.references[id] = [id];
}
return ref;
}
};
}
if (obj && obj._serialize) {
res = obj._serialize(options, dictionary);
var name = obj._class;
if (name && !compact && !res._compact && res[0] !== name)
res.unshift(name);
} else if (Array.isArray(obj)) {
res = [];
for (var i = 0, l = obj.length; i < l; i++)
res[i] = Base.serialize(obj[i], options, compact,
dictionary);
if (compact)
res._compact = true;
} else if (Base.isPlainObject(obj)) {
res = {};
for (var i in obj)
if (obj.hasOwnProperty(i))
res[i] = Base.serialize(obj[i], options, compact,
dictionary);
} else if (typeof obj === 'number') {
res = options.formatter.number(obj, options.precision);
} else {
res = obj;
}
return root && dictionary.length > 0
? [['dictionary', dictionary.definitions], res]
: res;
},
deserialize: function(json, create, _data) {
var res = json;
_data = _data || {};
if (Array.isArray(json)) {
var type = json[0],
isDictionary = type === 'dictionary';
if (!isDictionary) {
if (_data.dictionary && json.length == 1 && /^#/.test(type))
return _data.dictionary[type];
type = Base.exports[type];
}
res = [];
for (var i = type ? 1 : 0, l = json.length; i < l; i++)
res.push(Base.deserialize(json[i], create, _data));
if (isDictionary) {
_data.dictionary = res[0];
} else if (type) {
var args = res;
if (create) {
res = create(type, args);
} else {
res = Base.create(type.prototype);
type.apply(res, args);
}
}
} else if (Base.isPlainObject(json)) {
res = {};
for (var key in json)
res[key] = Base.deserialize(json[key], create, _data);
}
return res;
},
exportJSON: function(obj, options) {
return JSON.stringify(Base.serialize(obj, options));
},
importJSON: function(json, target) {
return Base.deserialize(
typeof json === 'string' ? JSON.parse(json) : json,
function(type, args) {
var obj = target && target.constructor === type
? target
: Base.create(type.prototype),
isTarget = obj === target;
if (args.length === 1 && obj instanceof Item
&& (!(obj instanceof Layer) || isTarget)) {
var arg = args[0];
if (Base.isPlainObject(arg))
arg.insert = false;
}
type.apply(obj, args);
if (isTarget)
target = null;
return obj;
});
},
splice: function(list, items, index, remove) {
var amount = items && items.length,
append = index === undefined;
index = append ? list.length : index;
if (index > list.length)
index = list.length;
for (var i = 0; i < amount; i++)
items[i]._index = index + i;
if (append) {
list.push.apply(list, items);
return [];
} else {
var args = [index, remove];
if (items)
args.push.apply(args, items);
var removed = list.splice.apply(list, args);
for (var i = 0, l = removed.length; i < l; i++)
delete removed[i]._index;
for (var i = index + amount, l = list.length; i < l; i++)
list[i]._index = i;
return removed;
}
},
capitalize: function(str) {
return str.replace(/\b[a-z]/g, function(match) {
return match.toUpperCase();
});
},
camelize: function(str) {
return str.replace(/-(.)/g, function(all, chr) {
return chr.toUpperCase();
});
},
hyphenate: function(str) {
return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
}
}
});
var Callback = {
attach: function(type, func) {
if (typeof type !== 'string') {
Base.each(type, function(value, key) {
this.attach(key, value);
}, this);
return;
}
var entry = this._eventTypes[type];
if (entry) {
var handlers = this._handlers = this._handlers || {};
handlers = handlers[type] = handlers[type] || [];
if (handlers.indexOf(func) == -1) {
handlers.push(func);
if (entry.install && handlers.length == 1)
entry.install.call(this, type);
}
}
},
detach: function(type, func) {
if (typeof type !== 'string') {
Base.each(type, function(value, key) {
this.detach(key, value);
}, this);
return;
}
var entry = this._eventTypes[type],
handlers = this._handlers && this._handlers[type],
index;
if (entry && handlers) {
if (!func || (index = handlers.indexOf(func)) != -1
&& handlers.length == 1) {
if (entry.uninstall)
entry.uninstall.call(this, type);
delete this._handlers[type];
} else if (index != -1) {
handlers.splice(index, 1);
}
}
},
once: function(type, func) {
this.attach(type, function() {
func.apply(this, arguments);
this.detach(type, func);
});
},
fire: function(type, event) {
var handlers = this._handlers && this._handlers[type];
if (!handlers)
return false;
var args = [].slice.call(arguments, 1),
PaperScript = paper.PaperScript,
handleException = PaperScript && PaperScript.handleException,
that = this;
function callHandlers() {
for (var i in handlers) {
if (handlers[i].apply(that, args) === false
&& event && event.stop)
event.stop();
}
}
if (handleException) {
try {
callHandlers();
} catch (e) {
handleException(e);
}
} else {
callHandlers();
}
return true;
},
responds: function(type) {
return !!(this._handlers && this._handlers[type]);
},
on: '#attach',
off: '#detach',
trigger: '#fire',
statics: {
inject: function inject() {
for (var i = 0, l = arguments.length; i < l; i++) {
var src = arguments[i],
events = src._events;
if (events) {
var types = {};
Base.each(events, function(entry, key) {
var isString = typeof entry === 'string',
name = isString ? entry : key,
part = Base.capitalize(name),
type = name.substring(2).toLowerCase();
types[type] = isString ? {} : entry;
name = '_' + name;
src['get' + part] = function() {
return this[name];
};
src['set' + part] = function(func) {
if (func) {
this.attach(type, func);
} else if (this[name]) {
this.detach(type, this[name]);
}
this[name] = func;
};
});
src._eventTypes = types;
}
inject.base.call(this, src);
}
return this;
}
}
};
var PaperScope = Base.extend({
_class: 'PaperScope',
initialize: function PaperScope(script) {
paper = this;
this.project = null;
this.projects = [];
this.tools = [];
this.palettes = [];
this._id = script && (script.getAttribute('id') || script.src)
|| ('paperscope-' + (PaperScope._id++));
if (script)
script.setAttribute('id', this._id);
PaperScope._scopes[this._id] = this;
if (!this.support) {
var ctx = CanvasProvider.getContext(1, 1);
PaperScope.prototype.support = {
nativeDash: 'setLineDash' in ctx || 'mozDash' in ctx,
nativeBlendModes: BlendMode.nativeModes
};
CanvasProvider.release(ctx);
}
},
version: '0.9.15',
getView: function() {
return this.project && this.project.view;
},
getTool: function() {
if (!this._tool)
this._tool = new Tool();
return this._tool;
},
getPaper: function() {
return this;
},
evaluate: function(code) {
var res = paper.PaperScript.evaluate(code, this);
View.updateFocus();
return res;
},
install: function(scope) {
var that = this;
Base.each(['project', 'view', 'tool'], function(key) {
Base.define(scope, key, {
configurable: true,
get: function() {
return that[key];
}
});
});
for (var key in this) {
if (!/^(version|_id)/.test(key))
scope[key] = this[key];
}
},
setup: function(canvas) {
paper = this;
this.project = new Project(canvas);
return this;
},
activate: function() {
paper = this;
},
clear: function() {
for (var i = this.projects.length - 1; i >= 0; i--)
this.projects[i].remove();
for (var i = this.tools.length - 1; i >= 0; i--)
this.tools[i].remove();
for (var i = this.palettes.length - 1; i >= 0; i--)
this.palettes[i].remove();
},
remove: function() {
this.clear();
delete PaperScope._scopes[this._id];
},
statics: new function() {
function handleAttribute(name) {
name += 'Attribute';
return function(el, attr) {
return el[name](attr) || el[name]('data-paper-' + attr);
};
}
return {
_scopes: {},
_id: 0,
get: function(id) {
if (typeof id === 'object')
id = id.getAttribute('id');
return this._scopes[id] || null;
},
getAttribute: handleAttribute('get'),
hasAttribute: handleAttribute('has')
};
}
});
var PaperScopeItem = Base.extend(Callback, {
initialize: function(activate) {
this._scope = paper;
this._index = this._scope[this._list].push(this) - 1;
if (activate || !this._scope[this._reference])
this.activate();
},
activate: function() {
if (!this._scope)
return false;
var prev = this._scope[this._reference];
if (prev && prev !== this)
prev.fire('deactivate');
this._scope[this._reference] = this;
this.fire('activate', prev);
return true;
},
isActive: function() {
return this._scope[this._reference] === this;
},
remove: function() {
if (this._index == null)
return false;
Base.splice(this._scope[this._list], null, this._index, 1);
if (this._scope[this._reference] == this)
this._scope[this._reference] = null;
this._scope = null;
return true;
}
});
var Formatter = Base.extend({
initialize: function(precision) {
this.precision = precision || 5;
this.multiplier = Math.pow(10, this.precision);
},
number: function(val) {
return Math.round(val * this.multiplier) / this.multiplier;
},
point: function(val, separator) {
return this.number(val.x) + (separator || ',') + this.number(val.y);
},
size: function(val, separator) {
return this.number(val.width) + (separator || ',')
+ this.number(val.height);
},
rectangle: function(val, separator) {
return this.point(val, separator) + (separator || ',')
+ this.size(val, separator);
}
});
Formatter.instance = new Formatter();
var Numerical = new function() {
var abscissas = [
[ 0.5773502691896257645091488],
[0,0.7745966692414833770358531],
[ 0.3399810435848562648026658,0.8611363115940525752239465],
[0,0.5384693101056830910363144,0.9061798459386639927976269],
[ 0.2386191860831969086305017,0.6612093864662645136613996,0.9324695142031520278123016],
[0,0.4058451513773971669066064,0.7415311855993944398638648,0.9491079123427585245261897],
[ 0.1834346424956498049394761,0.5255324099163289858177390,0.7966664774136267395915539,0.9602898564975362316835609],
[0,0.3242534234038089290385380,0.6133714327005903973087020,0.8360311073266357942994298,0.9681602395076260898355762],
[ 0.1488743389816312108848260,0.4333953941292471907992659,0.6794095682990244062343274,0.8650633666889845107320967,0.9739065285171717200779640],
[0,0.2695431559523449723315320,0.5190961292068118159257257,0.7301520055740493240934163,0.8870625997680952990751578,0.9782286581460569928039380],
[ 0.1252334085114689154724414,0.3678314989981801937526915,0.5873179542866174472967024,0.7699026741943046870368938,0.9041172563704748566784659,0.9815606342467192506905491],
[0,0.2304583159551347940655281,0.4484927510364468528779129,0.6423493394403402206439846,0.8015780907333099127942065,0.9175983992229779652065478,0.9841830547185881494728294],
[ 0.1080549487073436620662447,0.3191123689278897604356718,0.5152486363581540919652907,0.6872929048116854701480198,0.8272013150697649931897947,0.9284348836635735173363911,0.9862838086968123388415973],
[0,0.2011940939974345223006283,0.3941513470775633698972074,0.5709721726085388475372267,0.7244177313601700474161861,0.8482065834104272162006483,0.9372733924007059043077589,0.9879925180204854284895657],
[ 0.0950125098376374401853193,0.2816035507792589132304605,0.4580167776572273863424194,0.6178762444026437484466718,0.7554044083550030338951012,0.8656312023878317438804679,0.9445750230732325760779884,0.9894009349916499325961542]
];
var weights = [
[1],
[0.8888888888888888888888889,0.5555555555555555555555556],
[0.6521451548625461426269361,0.3478548451374538573730639],
[0.5688888888888888888888889,0.4786286704993664680412915,0.2369268850561890875142640],
[0.4679139345726910473898703,0.3607615730481386075698335,0.1713244923791703450402961],
[0.4179591836734693877551020,0.3818300505051189449503698,0.2797053914892766679014678,0.1294849661688696932706114],
[0.3626837833783619829651504,0.3137066458778872873379622,0.2223810344533744705443560,0.1012285362903762591525314],
[0.3302393550012597631645251,0.3123470770400028400686304,0.2606106964029354623187429,0.1806481606948574040584720,0.0812743883615744119718922],
[0.2955242247147528701738930,0.2692667193099963550912269,0.2190863625159820439955349,0.1494513491505805931457763,0.0666713443086881375935688],
[0.2729250867779006307144835,0.2628045445102466621806889,0.2331937645919904799185237,0.1862902109277342514260976,0.1255803694649046246346943,0.0556685671161736664827537],
[0.2491470458134027850005624,0.2334925365383548087608499,0.2031674267230659217490645,0.1600783285433462263346525,0.1069393259953184309602547,0.0471753363865118271946160],
[0.2325515532308739101945895,0.2262831802628972384120902,0.2078160475368885023125232,0.1781459807619457382800467,0.1388735102197872384636018,0.0921214998377284479144218,0.0404840047653158795200216],
[0.2152638534631577901958764,0.2051984637212956039659241,0.1855383974779378137417166,0.1572031671581935345696019,0.1215185706879031846894148,0.0801580871597602098056333,0.0351194603317518630318329],
[0.2025782419255612728806202,0.1984314853271115764561183,0.1861610000155622110268006,0.1662692058169939335532009,0.1395706779261543144478048,0.1071592204671719350118695,0.0703660474881081247092674,0.0307532419961172683546284],
[0.1894506104550684962853967,0.1826034150449235888667637,0.1691565193950025381893121,0.1495959888165767320815017,0.1246289712555338720524763,0.0951585116824927848099251,0.0622535239386478928628438,0.0271524594117540948517806]
];
var abs = Math.abs,
sqrt = Math.sqrt,
pow = Math.pow,
cos = Math.cos,
PI = Math.PI;
return {
TOLERANCE: 10e-6,
EPSILON: 10e-12,
KAPPA: 4 * (sqrt(2) - 1) / 3,
isZero: function(val) {
return abs(val) <= Numerical.EPSILON;
},
integrate: function(f, a, b, n) {
var x = abscissas[n - 2],
w = weights[n - 2],
A = 0.5 * (b - a),
B = A + a,
i = 0,
m = (n + 1) >> 1,
sum = n & 1 ? w[i++] * f(B) : 0;
while (i < m) {
var Ax = A * x[i];
sum += w[i++] * (f(B + Ax) + f(B - Ax));
}
return A * sum;
},
findRoot: function(f, df, x, a, b, n, tolerance) {
for (var i = 0; i < n; i++) {
var fx = f(x),
dx = fx / df(x);
if (abs(dx) < tolerance)
return x;
var nx = x - dx;
if (fx > 0) {
b = x;
x = nx <= a ? 0.5 * (a + b) : nx;
} else {
a = x;
x = nx >= b ? 0.5 * (a + b) : nx;
}
}
},
solveQuadratic: function(a, b, c, roots, min, max) {
var epsilon = Numerical.EPSILON,
unbound = min === undefined,
minE = min - epsilon,
maxE = max + epsilon,
count = 0;
function add(root) {
if (unbound || root > minE && root < maxE)
roots[count++] = root < min ? min : root > max ? max : root;
return count;
}
if (abs(a) < epsilon) {
if (abs(b) >= epsilon)
return add(-c / b);
return abs(c) < epsilon ? -1 : 0;
}
var p = b / (2 * a);
var q = c / a;
var p2 = p * p;
if (p2 < q - epsilon)
return 0;
var s = p2 > q ? sqrt(p2 - q) : 0;
add (s - p);
if (s > 0)
add(-s - p);
return count;
},
solveCubic: function(a, b, c, d, roots, min, max) {
var epsilon = Numerical.EPSILON;
if (abs(a) < epsilon)
return Numerical.solveQuadratic(b, c, d, roots, min, max);
var unbound = min === undefined,
minE = min - epsilon,
maxE = max + epsilon,
count = 0;
function add(root) {
if (unbound || root > minE && root < maxE)
roots[count++] = root < min ? min : root > max ? max : root;
return count;
}
b /= a;
c /= a;
d /= a;
var bb = b * b,
p = (bb - 3 * c) / 9,
q = (2 * bb * b - 9 * b * c + 27 * d) / 54,
ppp = p * p * p,
D = q * q - ppp;
b /= 3;
if (abs(D) < epsilon) {
if (abs(q) < epsilon)
return add(-b);
var sqp = sqrt(p),
snq = q > 0 ? 1 : -1;
add(-snq * 2 * sqp - b);
return add(snq * sqp - b);
}
if (D < 0) {
var sqp = sqrt(p),
phi = Math.acos(q / (sqp * sqp * sqp)) / 3,
t = -2 * sqp,
o = 2 * PI / 3;
add(t * cos(phi) - b);
add(t * cos(phi + o) - b);
return add(t * cos(phi - o) - b);
}
var A = (q > 0 ? -1 : 1) * pow(abs(q) + sqrt(D), 1 / 3);
return add(A + p / A - b);
}
};
};
var Point = Base.extend({
_class: 'Point',
_readIndex: true,
initialize: function Point(arg0, arg1) {
var type = typeof arg0;
if (type === 'number') {
var hasY = typeof arg1 === 'number';
this.x = arg0;
this.y = hasY ? arg1 : arg0;
if (this.__read)
this.__read = hasY ? 2 : 1;
} else if (type === 'undefined' || arg0 === null) {
this.x = this.y = 0;
if (this.__read)
this.__read = arg0 === null ? 1 : 0;
} else {
if (Array.isArray(arg0)) {
this.x = arg0[0];
this.y = arg0.length > 1 ? arg0[1] : arg0[0];
} else if (arg0.x != null) {
this.x = arg0.x;
this.y = arg0.y;
} else if (arg0.width != null) {
this.x = arg0.width;
this.y = arg0.height;
} else if (arg0.angle != null) {
this.x = arg0.length;
this.y = 0;
this.setAngle(arg0.angle);
} else {
this.x = this.y = 0;
if (this.__read)
this.__read = 0;
}
if (this.__read)
this.__read = 1;
}
},
set: function(x, y) {
this.x = x;
this.y = y;
return this;
},
equals: function(point) {
return point === this || point && (this.x === point.x
&& this.y === point.y
|| Array.isArray(point) && this.x === point[0]
&& this.y === point[1]) || false;
},
clone: function() {
return new Point(this.x, this.y);
},
toString: function() {
var f = Formatter.instance;
return '{ x: ' + f.number(this.x) + ', y: ' + f.number(this.y) + ' }';
},
_serialize: function(options) {
var f = options.formatter;
return [f.number(this.x), f.number(this.y)];
},
add: function(point) {
point = Point.read(arguments);
return new Point(this.x + point.x, this.y + point.y);
},
subtract: function(point) {
point = Point.read(arguments);
return new Point(this.x - point.x, this.y - point.y);
},
multiply: function(point) {
point = Point.read(arguments);
return new Point(this.x * point.x, this.y * point.y);
},
divide: function(point) {
point = Point.read(arguments);
return new Point(this.x / point.x, this.y / point.y);
},
modulo: function(point) {
point = Point.read(arguments);
return new Point(this.x % point.x, this.y % point.y);
},
negate: function() {
return new Point(-this.x, -this.y);
},
transform: function(matrix) {
return matrix ? matrix._transformPoint(this) : this;
},
getDistance: function(point, squared) {
point = Point.read(arguments);
var x = point.x - this.x,
y = point.y - this.y,
d = x * x + y * y;
return squared ? d : Math.sqrt(d);
},
getLength: function() {
var length = this.x * this.x + this.y * this.y;
return arguments.length && arguments[0] ? length : Math.sqrt(length);
},
setLength: function(length) {
if (this.isZero()) {
var angle = this._angle || 0;
this.set(
Math.cos(angle) * length,
Math.sin(angle) * length
);
} else {
var scale = length / this.getLength();
if (Numerical.isZero(scale))
this.getAngle();
this.set(
this.x * scale,
this.y * scale
);
}
return this;
},
normalize: function(length) {
if (length === undefined)
length = 1;
var current = this.getLength(),
scale = current !== 0 ? length / current : 0,
point = new Point(this.x * scale, this.y * scale);
point._angle = this._angle;
return point;
},
getAngle: function() {
return this.getAngleInRadians(arguments[0]) * 180 / Math.PI;
},
setAngle: function(angle) {
angle = this._angle = angle * Math.PI / 180;
if (!this.isZero()) {
var length = this.getLength();
this.set(
Math.cos(angle) * length,
Math.sin(angle) * length
);
}
return this;
},
getAngleInRadians: function() {
if (arguments[0] === undefined) {
return this.isZero()
? this._angle || 0
: this._angle = Math.atan2(this.y, this.x);
} else {
var point = Point.read(arguments),
div = this.getLength() * point.getLength();
if (Numerical.isZero(div)) {
return NaN;
} else {
return Math.acos(this.dot(point) / div);
}
}
},
getAngleInDegrees: function() {
return this.getAngle(arguments[0]);
},
getQuadrant: function() {
return this.x >= 0 ? this.y >= 0 ? 1 : 4 : this.y >= 0 ? 2 : 3;
},
getDirectedAngle: function(point) {
point = Point.read(arguments);
return Math.atan2(this.cross(point), this.dot(point)) * 180 / Math.PI;
},
rotate: function(angle, center) {
if (angle === 0)
return this.clone();
angle = angle * Math.PI / 180;
var point = center ? this.subtract(center) : this,
s = Math.sin(angle),
c = Math.cos(angle);
point = new Point(
point.x * c - point.y * s,
point.y * c + point.x * s
);
return center ? point.add(center) : point;
},
isInside: function(rect) {
return rect.contains(this);
},
isClose: function(point, tolerance) {
return this.getDistance(point) < tolerance;
},
isColinear: function(point) {
return this.cross(point) < 0.00001;
},
isOrthogonal: function(point) {
return this.dot(point) < 0.00001;
},
isZero: function() {
return Numerical.isZero(this.x) && Numerical.isZero(this.y);
},
isNaN: function() {
return isNaN(this.x) || isNaN(this.y);
},
dot: function(point) {
point = Point.read(arguments);
return this.x * point.x + this.y * point.y;
},
cross: function(point) {
point = Point.read(arguments);
return this.x * point.y - this.y * point.x;
},
project: function(point) {
point = Point.read(arguments);
if (point.isZero()) {
return new Point(0, 0);
} else {
var scale = this.dot(point) / point.dot(point);
return new Point(
point.x * scale,
point.y * scale
);
}
},
statics: {
min: function() {
var point1 = Point.read(arguments);
point2 = Point.read(arguments);
return new Point(
Math.min(point1.x, point2.x),
Math.min(point1.y, point2.y)
);
},
max: function() {
var point1 = Point.read(arguments);
point2 = Point.read(arguments);
return new Point(
Math.max(point1.x, point2.x),
Math.max(point1.y, point2.y)
);
},
random: function() {
return new Point(Math.random(), Math.random());
}
}
}, Base.each(['round', 'ceil', 'floor', 'abs'], function(name) {
var op = Math[name];
this[name] = function() {
return new Point(op(this.x), op(this.y));
};
}, {}));
var LinkedPoint = Point.extend({
initialize: function Point(x, y, owner, setter) {
this._x = x;
this._y = y;
this._owner = owner;
this._setter = setter;
},
set: function(x, y, _dontNotify) {
this._x = x;
this._y = y;
if (!_dontNotify)
this._owner[this._setter](this);
return this;
},
getX: function() {
return this._x;
},
setX: function(x) {
this._x = x;
this._owner[this._setter](this);
},
getY: function() {
return this._y;
},
setY: function(y) {
this._y = y;
this._owner[this._setter](this);
}
});
var Size = Base.extend({
_class: 'Size',
_readIndex: true,
initialize: function Size(arg0, arg1) {
var type = typeof arg0;
if (type === 'number') {
var hasHeight = typeof arg1 === 'number';
this.width = arg0;
this.height = hasHeight ? arg1 : arg0;
if (this.__read)
this.__read = hasHeight ? 2 : 1;
} else if (type === 'undefined' || arg0 === null) {
this.width = this.height = 0;
if (this.__read)
this.__read = arg0 === null ? 1 : 0;
} else {
if (Array.isArray(arg0)) {
this.width = arg0[0];
this.height = arg0.length > 1 ? arg0[1] : arg0[0];
} else if (arg0.width != null) {
this.width = arg0.width;
this.height = arg0.height;
} else if (arg0.x != null) {
this.width = arg0.x;
this.height = arg0.y;
} else {
this.width = this.height = 0;
if (this.__read)
this.__read = 0;
}
if (this.__read)
this.__read = 1;
}
},
set: function(width, height) {
this.width = width;
this.height = height;
return this;
},
equals: function(size) {
return size === this || size && (this.width === size.width
&& this.height === size.height
|| Array.isArray(size) && this.width === size[0]
&& this.height === size[1]) || false;
},
clone: function() {
return new Size(this.width, this.height);
},
toString: function() {
var f = Formatter.instance;
return '{ width: ' + f.number(this.width)
+ ', height: ' + f.number(this.height) + ' }';
},
_serialize: function(options) {
var f = options.formatter;
return [f.number(this.width),
f.number(this.height)];
},
add: function(size) {
size = Size.read(arguments);
return new Size(this.width + size.width, this.height + size.height);
},
subtract: function(size) {
size = Size.read(arguments);
return new Size(this.width - size.width, this.height - size.height);
},
multiply: function(size) {
size = Size.read(arguments);
return new Size(this.width * size.width, this.height * size.height);
},
divide: function(size) {
size = Size.read(arguments);
return new Size(this.width / size.width, this.height / size.height);
},
modulo: function(size) {
size = Size.read(arguments);
return new Size(this.width % size.width, this.height % size.height);
},
negate: function() {
return new Size(-this.width, -this.height);
},
isZero: function() {
return Numerical.isZero(this.width) && Numerical.isZero(this.height);
},
isNaN: function() {
return isNaN(this.width) || isNaN(this.height);
},
statics: {
min: function(size1, size2) {
return new Size(
Math.min(size1.width, size2.width),
Math.min(size1.height, size2.height));
},
max: function(size1, size2) {
return new Size(
Math.max(size1.width, size2.width),
Math.max(size1.height, size2.height));
},
random: function() {
return new Size(Math.random(), Math.random());
}
}
}, Base.each(['round', 'ceil', 'floor', 'abs'], function(name) {
var op = Math[name];
this[name] = function() {
return new Size(op(this.width), op(this.height));
};
}, {}));
var LinkedSize = Size.extend({
initialize: function Size(width, height, owner, setter) {
this._width = width;
this._height = height;
this._owner = owner;
this._setter = setter;
},
set: function(width, height, _dontNotify) {
this._width = width;
this._height = height;
if (!_dontNotify)
this._owner[this._setter](this);
return this;
},
getWidth: function() {
return this._width;
},
setWidth: function(width) {
this._width = width;
this._owner[this._setter](this);
},
getHeight: function() {
return this._height;
},
setHeight: function(height) {
this._height = height;
this._owner[this._setter](this);
}
});
var Rectangle = Base.extend({
_class: 'Rectangle',
_readIndex: true,
initialize: function Rectangle(arg0, arg1, arg2, arg3) {
var type = typeof arg0,
read = 0;
if (type === 'number') {
this.x = arg0;
this.y = arg1;
this.width = arg2;
this.height = arg3;
read = 4;
} else if (type === 'undefined' || arg0 === null) {
this.x = this.y = this.width = this.height = 0;
read = arg0 === null ? 1 : 0;
} else if (arguments.length === 1) {
if (Array.isArray(arg0)) {
this.x = arg0[0];
this.y = arg0[1];
this.width = arg0[2];
this.height = arg0[3];
read = 1;
} else if (arg0.x !== undefined || arg0.width !== undefined) {
this.x = arg0.x || 0;
this.y = arg0.y || 0;
this.width = arg0.width || 0;
this.height = arg0.height || 0;
read = 1;
} else if (arg0.from === undefined && arg0.to === undefined) {
this.x = this.y = this.width = this.height = 0;
this._set(arg0);
read = 1;
}
}
if (!read) {
var point = Point.readNamed(arguments, 'from'),
next = Base.peek(arguments);
this.x = point.x;
this.y = point.y;
if (next && next.x !== undefined || Base.hasNamed(arguments, 'to')) {
var to = Point.readNamed(arguments, 'to');
this.width = to.x - point.x;
this.height = to.y - point.y;
if (this.width < 0) {
this.x = to.x;
this.width = -this.width;
}
if (this.height < 0) {
this.y = to.y;
this.height = -this.height;
}
} else {
var size = Size.read(arguments);
this.width = size.width;
this.height = size.height;
}
read = arguments._index;
}
if (this.__read)
this.__read = read;
},
set: function(x, y, width, height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
return this;
},
clone: function() {
return new Rectangle(this.x, this.y, this.width, this.height);
},
equals: function(rect) {
if (Base.isPlainValue(rect))
rect = Rectangle.read(arguments);
return rect === this
|| rect && this.x === rect.x && this.y === rect.y
&& this.width === rect.width && this.height === rect.height
|| false;
},
toString: function() {
var f = Formatter.instance;
return '{ x: ' + f.number(this.x)
+ ', y: ' + f.number(this.y)
+ ', width: ' + f.number(this.width)
+ ', height: ' + f.number(this.height)
+ ' }';
},
_serialize: function(options) {
var f = options.formatter;
return [f.number(this.x),
f.number(this.y),
f.number(this.width),
f.number(this.height)];
},
getPoint: function() {
return new (arguments[0] ? Point : LinkedPoint)
(this.x, this.y, this, 'setPoint');
},
setPoint: function(point) {
point = Point.read(arguments);
this.x = point.x;
this.y = point.y;
},
getSize: function() {
return new (arguments[0] ? Size : LinkedSize)
(this.width, this.height, this, 'setSize');
},
setSize: function(size) {
size = Size.read(arguments);
if (this._fixX)
this.x += (this.width - size.width) * this._fixX;
if (this._fixY)
this.y += (this.height - size.height) * this._fixY;
this.width = size.width;
this.height = size.height;
this._fixW = 1;
this._fixH = 1;
},
getLeft: function() {
return this.x;
},
setLeft: function(left) {
if (!this._fixW)
this.width -= left - this.x;
this.x = left;
this._fixX = 0;
},
getTop: function() {
return this.y;
},
setTop: function(top) {
if (!this._fixH)
this.height -= top - this.y;
this.y = top;
this._fixY = 0;
},
getRight: function() {
return this.x + this.width;
},
setRight: function(right) {
if (this._fixX !== undefined && this._fixX !== 1)
this._fixW = 0;
if (this._fixW)
this.x = right - this.width;
else
this.width = right - this.x;
this._fixX = 1;
},
getBottom: function() {
return this.y + this.height;
},
setBottom: function(bottom) {
if (this._fixY !== undefined && this._fixY !== 1)
this._fixH = 0;
if (this._fixH)
this.y = bottom - this.height;
else
this.height = bottom - this.y;
this._fixY = 1;
},
getCenterX: function() {
return this.x + this.width * 0.5;
},
setCenterX: function(x) {
this.x = x - this.width * 0.5;
this._fixX = 0.5;
},
getCenterY: function() {
return this.y + this.height * 0.5;
},
setCenterY: function(y) {
this.y = y - this.height * 0.5;
this._fixY = 0.5;
},
getCenter: function() {
return new (arguments[0] ? Point : LinkedPoint)
(this.getCenterX(), this.getCenterY(), this, 'setCenter');
},
setCenter: function(point) {
point = Point.read(arguments);
this.setCenterX(point.x);
this.setCenterY(point.y);
return this;
},
isEmpty: function() {
return this.width == 0 || this.height == 0;
},
contains: function(arg) {
return arg && arg.width !== undefined
|| (Array.isArray(arg) ? arg : arguments).length == 4
? this._containsRectangle(Rectangle.read(arguments))
: this._containsPoint(Point.read(arguments));
},
_containsPoint: function(point) {
var x = point.x,
y = point.y;
return x >= this.x && y >= this.y
&& x <= this.x + this.width
&& y <= this.y + this.height;
},
_containsRectangle: function(rect) {
var x = rect.x,
y = rect.y;
return x >= this.x && y >= this.y
&& x + rect.width <= this.x + this.width
&& y + rect.height <= this.y + this.height;
},
intersects: function(rect) {
rect = Rectangle.read(arguments);
return rect.x + rect.width > this.x
&& rect.y + rect.height > this.y
&& rect.x < this.x + this.width
&& rect.y < this.y + this.height;
},
touches: function(rect) {
rect = Rectangle.read(arguments);
return rect.x + rect.width >= this.x
&& rect.y + rect.height >= this.y
&& rect.x <= this.x + this.width
&& rect.y <= this.y + this.height;
},
intersect: function(rect) {
rect = Rectangle.read(arguments);
var x1 = Math.max(this.x, rect.x),
y1 = Math.max(this.y, rect.y),
x2 = Math.min(this.x + this.width, rect.x + rect.width),
y2 = Math.min(this.y + this.height, rect.y + rect.height);
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
},
unite: function(rect) {
rect = Rectangle.read(arguments);
var x1 = Math.min(this.x, rect.x),
y1 = Math.min(this.y, rect.y),
x2 = Math.max(this.x + this.width, rect.x + rect.width),
y2 = Math.max(this.y + this.height, rect.y + rect.height);
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
},
include: function(point) {
point = Point.read(arguments);
var x1 = Math.min(this.x, point.x),
y1 = Math.min(this.y, point.y),
x2 = Math.max(this.x + this.width, point.x),
y2 = Math.max(this.y + this.height, point.y);
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
},
expand: function(hor, ver) {
if (ver === undefined)
ver = hor;
return new Rectangle(this.x - hor / 2, this.y - ver / 2,
this.width + hor, this.height + ver);
},
scale: function(hor, ver) {
return this.expand(this.width * hor - this.width,
this.height * (ver === undefined ? hor : ver) - this.height);
}
}, new function() {
return Base.each([
['Top', 'Left'], ['Top', 'Right'],
['Bottom', 'Left'], ['Bottom', 'Right'],
['Left', 'Center'], ['Top', 'Center'],
['Right', 'Center'], ['Bottom', 'Center']
],
function(parts, index) {
var part = parts.join('');
var xFirst = /^[RL]/.test(part);
if (index >= 4)
parts[1] += xFirst ? 'Y' : 'X';
var x = parts[xFirst ? 0 : 1],
y = parts[xFirst ? 1 : 0],
getX = 'get' + x,
getY = 'get' + y,
setX = 'set' + x,
setY = 'set' + y,
get = 'get' + part,
set = 'set' + part;
this[get] = function() {
return new (arguments[0] ? Point : LinkedPoint)
(this[getX](), this[getY](), this, set);
};
this[set] = function(point) {
point = Point.read(arguments);
this[setX](point.x);
this[setY](point.y);
};
}, {});
});
var LinkedRectangle = Rectangle.extend({
initialize: function Rectangle(x, y, width, height, owner, setter) {
this.set(x, y, width, height, true);
this._owner = owner;
this._setter = setter;
},
set: function(x, y, width, height, _dontNotify) {
this._x = x;
this._y = y;
this._width = width;
this._height = height;
if (!_dontNotify)
this._owner[this._setter](this);
return this;
}
}, new function() {
var proto = Rectangle.prototype;
return Base.each(['x', 'y', 'width', 'height'], function(key) {
var part = Base.capitalize(key);
var internal = '_' + key;
this['get' + part] = function() {
return this[internal];
};
this['set' + part] = function(value) {
this[internal] = value;
if (!this._dontNotify)
this._owner[this._setter](this);
};
}, Base.each(['Point', 'Size', 'Center',
'Left', 'Top', 'Right', 'Bottom', 'CenterX', 'CenterY',
'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight',
'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'],
function(key) {
var name = 'set' + key;
this[name] = function() {
this._dontNotify = true;
proto[name].apply(this, arguments);
delete this._dontNotify;
this._owner[this._setter](this);
};
}, {
isSelected: function() {
return this._owner._boundsSelected;
},
setSelected: function(selected) {
var owner = this._owner;
if (owner.setSelected) {
owner._boundsSelected = selected;
owner.setSelected(selected || owner._selectedSegmentState > 0);
}
}
})
);
});
var Matrix = Base.extend({
_class: 'Matrix',
initialize: function Matrix(arg) {
var count = arguments.length,
ok = true;
if (count === 6) {
this.set.apply(this, arguments);
} else if (count === 1) {
if (arg instanceof Matrix) {
this.set(arg._a, arg._c, arg._b, arg._d, arg._tx, arg._ty);
} else if (Array.isArray(arg)) {
this.set.apply(this, arg);
} else {
ok = false;
}
} else if (count === 0) {
this.reset();
} else {
ok = false;
}
if (!ok)
throw new Error('Unsupported matrix parameters');
},
set: function(a, c, b, d, tx, ty, _dontNotify) {
this._a = a;
this._c = c;
this._b = b;
this._d = d;
this._tx = tx;
this._ty = ty;
if (!_dontNotify)
this._changed();
return this;
},
_serialize: function(options) {
return Base.serialize(this.getValues(), options);
},
_changed: function() {
if (this._owner)
this._owner._changed(5);
},
clone: function() {
return new Matrix(this._a, this._c, this._b, this._d,
this._tx, this._ty);
},
equals: function(mx) {
return mx === this || mx && this._a === mx._a && this._b === mx._b
&& this._c === mx._c && this._d === mx._d
&& this._tx === mx._tx && this._ty === mx._ty
|| false;
},
toString: function() {
var f = Formatter.instance;
return '[[' + [f.number(this._a), f.number(this._b),
f.number(this._tx)].join(', ') + '], ['
+ [f.number(this._c), f.number(this._d),
f.number(this._ty)].join(', ') + ']]';
},
reset: function() {
this._a = this._d = 1;
this._c = this._b = this._tx = this._ty = 0;
this._changed();
return this;
},
scale: function() {
var scale = Point.read(arguments),
center = Point.read(arguments, 0, 0, { readNull: true });
if (center)
this.translate(center);
this._a *= scale.x;
this._c *= scale.x;
this._b *= scale.y;
this._d *= scale.y;
if (center)
this.translate(center.negate());
this._changed();
return this;
},
translate: function(point) {
point = Point.read(arguments);
var x = point.x,
y = point.y;
this._tx += x * this._a + y * this._b;
this._ty += x * this._c + y * this._d;
this._changed();
return this;
},
rotate: function(angle, center) {
center = Point.read(arguments, 1);
angle = angle * Math.PI / 180;
var x = center.x,
y = center.y,
cos = Math.cos(angle),
sin = Math.sin(angle),
tx = x - x * cos + y * sin,
ty = y - x * sin - y * cos,
a = this._a,
b = this._b,
c = this._c,
d = this._d;
this._a = cos * a + sin * b;
this._b = -sin * a + cos * b;
this._c = cos * c + sin * d;
this._d = -sin * c + cos * d;
this._tx += tx * a + ty * b;
this._ty += tx * c + ty * d;
this._changed();
return this;
},
shear: function() {
var point = Point.read(arguments),
center = Point.read(arguments, 0, 0, { readNull: true });
if (center)
this.translate(center);
var a = this._a,
c = this._c;
this._a += point.y * this._b;
this._c += point.y * this._d;
this._b += point.x * a;
this._d += point.x * c;
if (center)
this.translate(center.negate());
this._changed();
return this;
},
concatenate: function(mx) {
var a = this._a,
b = this._b,
c = this._c,
d = this._d;
this._a = mx._a * a + mx._c * b;
this._b = mx._b * a + mx._d * b;
this._c = mx._a * c + mx._c * d;
this._d = mx._b * c + mx._d * d;
this._tx += mx._tx * a + mx._ty * b;
this._ty += mx._tx * c + mx._ty * d;
this._changed();
return this;
},
preConcatenate: function(mx) {
var a = this._a,
b = this._b,
c = this._c,
d = this._d,
tx = this._tx,
ty = this._ty;
this._a = mx._a * a + mx._b * c;
this._b = mx._a * b + mx._b * d;
this._c = mx._c * a + mx._d * c;
this._d = mx._c * b + mx._d * d;
this._tx = mx._a * tx + mx._b * ty + mx._tx;
this._ty = mx._c * tx + mx._d * ty + mx._ty;
this._changed();
return this;
},
isIdentity: function() {
return this._a === 1 && this._c === 0 && this._b === 0 && this._d === 1
&& this._tx === 0 && this._ty === 0;
},
isInvertible: function() {
return !!this._getDeterminant();
},
isSingular: function() {
return !this._getDeterminant();
},
transform: function( src, srcOffset, dst, dstOffset, count) {
return arguments.length < 5
? this._transformPoint(Point.read(arguments))
: this._transformCoordinates(src, srcOffset, dst, dstOffset, count);
},
_transformPoint: function(point, dest, _dontNotify) {
var x = point.x,
y = point.y;
if (!dest)
dest = new Point();
return dest.set(
x * this._a + y * this._b + this._tx,
x * this._c + y * this._d + this._ty,
_dontNotify
);
},
_transformCoordinates: function(src, srcOffset, dst, dstOffset, count) {
var i = srcOffset,
j = dstOffset,
max = i + 2 * count;
while (i < max) {
var x = src[i++],
y = src[i++];
dst[j++] = x * this._a + y * this._b + this._tx;
dst[j++] = x * this._c + y * this._d + this._ty;
}
return dst;
},
_transformCorners: function(rect) {
var x1 = rect.x,
y1 = rect.y,
x2 = x1 + rect.width,
y2 = y1 + rect.height,
coords = [ x1, y1, x2, y1, x2, y2, x1, y2 ];
return this._transformCoordinates(coords, 0, coords, 0, 4);
},
_transformBounds: function(bounds, dest, _dontNotify) {
var coords = this._transformCorners(bounds),
min = coords.slice(0, 2),
max = coords.slice();
for (var i = 2; i < 8; i++) {
var val = coords[i],
j = i & 1;
if (val < min[j])
min[j] = val;
else if (val > max[j])
max[j] = val;
}
if (!dest)
dest = new Rectangle();
return dest.set(min[0], min[1], max[0] - min[0], max[1] - min[1],
_dontNotify);
},
inverseTransform: function() {
return this._inverseTransform(Point.read(arguments));
},
_getDeterminant: function() {
var det = this._a * this._d - this._b * this._c;
return isFinite(det) && !Numerical.isZero(det)
&& isFinite(this._tx) && isFinite(this._ty)
? det : null;
},
_inverseTransform: function(point, dest, _dontNotify) {
var det = this._getDeterminant();
if (!det)
return null;
var x = point.x - this._tx,
y = point.y - this._ty;
if (!dest)
dest = new Point();
return dest.set(
(x * this._d - y * this._b) / det,
(y * this._a - x * this._c) / det,
_dontNotify
);
},
decompose: function() {
var a = this._a, b = this._b, c = this._c, d = this._d;
if (Numerical.isZero(a * d - b * c))
return null;
var scaleX = Math.sqrt(a * a + b * b);
a /= scaleX;
b /= scaleX;
var shear = a * c + b * d;
c -= a * shear;
d -= b * shear;
var scaleY = Math.sqrt(c * c + d * d);
c /= scaleY;
d /= scaleY;
shear /= scaleY;
if (a * d < b * c) {
a = -a;
b = -b;
shear = -shear;
scaleX = -scaleX;
}
return {
translation: this.getTranslation(),
scaling: new Point(scaleX, scaleY),
rotation: -Math.atan2(b, a) * 180 / Math.PI,
shearing: shear
};
},
getValues: function() {
return [ this._a, this._c, this._b, this._d, this._tx, this._ty ];
},
getTranslation: function() {
return new Point(this._tx, this._ty);
},
setTranslation: function() {
var point = Point.read(arguments);
this._tx = point.x;
this._ty = point.y;
this._changed();
},
getScaling: function() {
return (this.decompose() || {}).scaling;
},
setScaling: function() {
var scaling = this.getScaling();
if (scaling != null) {
var scale = Point.read(arguments);
(this._owner || this).scale(
scale.x / scaling.x, scale.y / scaling.y);
}
},
getRotation: function() {
return (this.decompose() || {}).rotation;
},
setRotation: function(angle) {
var rotation = this.getRotation();
if (rotation != null)
(this._owner || this).rotate(angle - rotation);
},
inverted: function() {
var det = this._getDeterminant();
return det && new Matrix(
this._d / det,
-this._c / det,
-this._b / det,
this._a / det,
(this._b * this._ty - this._d * this._tx) / det,
(this._c * this._tx - this._a * this._ty) / det);
},
shiftless: function() {
return new Matrix(this._a, this._c, this._b, this._d, 0, 0);
},
applyToContext: function(ctx) {
ctx.transform(this._a, this._c, this._b, this._d, this._tx, this._ty);
}
}, new function() {
return Base.each({
scaleX: '_a',
scaleY: '_d',
translateX: '_tx',
translateY: '_ty',
shearX: '_b',
shearY: '_c'
}, function(prop, name) {
name = Base.capitalize(name);
this['get' + name] = function() {
return this[prop];
};
this['set' + name] = function(value) {
this[prop] = value;
this._changed();
};
}, {});
});
var Line = Base.extend({
_class: 'Line',
initialize: function Line(arg0, arg1, arg2, arg3, arg4) {
var asVector = false;
if (arguments.length >= 4) {
this._px = arg0;
this._py = arg1;
this._vx = arg2;
this._vy = arg3;
asVector = arg4;
} else {
this._px = arg0.x;
this._py = arg0.y;
this._vx = arg1.x;
this._vy = arg1.y;
asVector = arg2;
}
if (!asVector) {
this._vx -= this._px;
this._vy -= this._py;
}
},
getPoint: function() {
return new Point(this._px, this._py);
},
getVector: function() {
return new Point(this._vx, this._vy);
},
getLength: function() {
return this.getVector().getLength();
},
intersect: function(line, isInfinite) {
return Line.intersect(
this._px, this._py, this._vx, this._vy,
line._px, line._py, line._vx, line._vy,
true, isInfinite);
},
getSide: function(point) {
return Line.getSide(
this._px, this._py, this._vx, this._vy,
point.x, point.y, true);
},
getDistance: function(point) {
return Math.abs(Line.getSignedDistance(
this._px, this._py, this._vx, this._vy,
point.x, point.y, true));
},
statics: {
intersect: function(apx, apy, avx, avy, bpx, bpy, bvx, bvy, asVector,
isInfinite) {
if (!asVector) {
avx -= apx;
avy -= apy;
bvx -= bpx;
bvy -= bpy;
}
var cross = bvy * avx - bvx * avy;
if (!Numerical.isZero(cross)) {
var dx = apx - bpx,
dy = apy - bpy,
ta = (bvx * dy - bvy * dx) / cross,
tb = (avx * dy - avy * dx) / cross;
if ((isInfinite || 0 <= ta && ta <= 1)
&& (isInfinite || 0 <= tb && tb <= 1))
return new Point(
apx + ta * avx,
apy + ta * avy);
}
},
getSide: function(px, py, vx, vy, x, y, asVector) {
if (!asVector) {
vx -= px;
vy -= py;
}
var v2x = x - px,
v2y = y - py,
ccw = v2x * vy - v2y * vx;
if (ccw === 0) {
ccw = v2x * vx + v2y * vy;
if (ccw > 0) {
v2x -= vx;
v2y -= vy;
ccw = v2x * vx + v2y * vy;
if (ccw < 0)
ccw = 0;
}
}
return ccw < 0 ? -1 : ccw > 0 ? 1 : 0;
},
getSignedDistance: function(px, py, vx, vy, x, y, asVector) {
if (!asVector) {
vx -= px;
vy -= py;
}
var m = vy / vx,
b = py - m * px;
return (y - (m * x) - b) / Math.sqrt(m * m + 1);
}
}
});
var Project = PaperScopeItem.extend({
_class: 'Project',
_list: 'projects',
_reference: 'project',
initialize: function Project(view) {
PaperScopeItem.call(this, true);
this.layers = [];
this.symbols = [];
this._currentStyle = new Style();
this.activeLayer = new Layer();
if (view)
this.view = view instanceof View ? view : View.create(view);
this._selectedItems = {};
this._selectedItemCount = 0;
this._drawCount = 0;
this.options = {};
},
_serialize: function(options, dictionary) {
return Base.serialize(this.layers, options, true, dictionary);
},
clear: function() {
for (var i = this.layers.length - 1; i >= 0; i--)
this.layers[i].remove();
this.symbols = [];
},
isEmpty: function() {
return this.layers.length <= 1
&& (!this.activeLayer || this.activeLayer.isEmpty());
},
remove: function remove() {
if (!remove.base.call(this))
return false;
if (this.view)
this.view.remove();
return true;
},
getCurrentStyle: function() {
return this._currentStyle;
},
setCurrentStyle: function(style) {
this._currentStyle.initialize(style);
},
getIndex: function() {
return this._index;
},
addChild: function(child) {
if (child instanceof Layer) {
Base.splice(this.layers, [child]);
if (!this.activeLayer)
this.activeLayer = child;
} else if (child instanceof Item) {
(this.activeLayer
|| this.addChild(new Layer({ insert: false }))).addChild(child);
} else {
child = null;
}
return child;
},
getSelectedItems: function() {
var items = [];
for (var id in this._selectedItems) {
var item = this._selectedItems[id];
if (item.isInserted())
items.push(item);
}
return items;
},
_updateSelection: function(item) {
var id = item._id,
selectedItems = this._selectedItems;
if (item._selected) {
if (selectedItems[id] !== item) {
this._selectedItemCount++;
selectedItems[id] = item;
}
} else if (selectedItems[id] === item) {
this._selectedItemCount--;
delete selectedItems[id];
}
},
selectAll: function() {
var layers = this.layers;
for (var i = 0, l = layers.length; i < l; i++)
layers[i].setFullySelected(true);
},
deselectAll: function() {
var selectedItems = this._selectedItems;
for (var i in selectedItems)
selectedItems[i].setFullySelected(false);
},
hitTest: function(point, options) {
point = Point.read(arguments);
options = HitResult.getOptions(Base.read(arguments));
for (var i = this.layers.length - 1; i >= 0; i--) {
var res = this.layers[i].hitTest(point, options);
if (res) return res;
}
return null;
}
}, new function() {
function getItems(project, match, list) {
var layers = project.layers,
items = list && [];
for (var i = 0, l = layers.length; i < l; i++) {
var res = layers[i][list ? 'getItems' : 'getItem'](match);
if (list) {
items.push.apply(items, res);
} else if (res)
return res;
}
return list ? items : null;
}
return {
getItems: function(match) {
return getItems(this, match, true);
},
getItem: function(match) {
return getItems(this, match, false);
}
};
}, {
importJSON: function(json) {
this.activate();
var layer = this.activeLayer;
return Base.importJSON(json, layer && layer.isEmpty() && layer);
},
draw: function(ctx, matrix, ratio) {
this._drawCount++;
ctx.save();
matrix.applyToContext(ctx);
var param = new Base({
offset: new Point(0, 0),
ratio: ratio,
transforms: [matrix],
trackTransforms: true
});
for (var i = 0, l = this.layers.length; i < l; i++)
this.layers[i].draw(ctx, param);
ctx.restore();
if (this._selectedItemCount > 0) {
ctx.save();
ctx.strokeWidth = 1;
for (var id in this._selectedItems) {
var item = this._selectedItems[id];
if (item._drawCount === this._drawCount
&& (item._drawSelected || item._boundsSelected)) {
var color = item.getSelectedColor()
|| item.getLayer().getSelectedColor();
ctx.strokeStyle = ctx.fillStyle = color
? color.toCanvasStyle(ctx) : '#009dec';
var mx = item._globalMatrix;
if (item._drawSelected)
item._drawSelected(ctx, mx);
if (item._boundsSelected) {
var coords = mx._transformCorners(
item._getBounds('getBounds'));
ctx.beginPath();
for (var i = 0; i < 8; i++)
ctx[i === 0 ? 'moveTo' : 'lineTo'](
coords[i], coords[++i]);
ctx.closePath();
ctx.stroke();
for (var i = 0; i < 8; i++) {
ctx.beginPath();
ctx.rect(coords[i] - 2, coords[++i] - 2, 4, 4);
ctx.fill();
}
}
}
}
ctx.restore();
}
}
});
var Symbol = Base.extend({
_class: 'Symbol',
initialize: function Symbol(item, dontCenter) {
this._id = Symbol._id = (Symbol._id || 0) + 1;
this.project = paper.project;
this.project.symbols.push(this);
if (item)
this.setDefinition(item, dontCenter);
this._instances = {};
},
_serialize: function(options, dictionary) {
return dictionary.add(this, function() {
return Base.serialize([this._class, this._definition],
options, false, dictionary);
});
},
_changed: function(flags) {
Base.each(this._instances, function(item) {
item._changed(flags);
});
},
getDefinition: function() {
return this._definition;
},
setDefinition: function(item ) {
if (item._parentSymbol)
item = item.clone();
if (this._definition)
delete this._definition._parentSymbol;
this._definition = item;
item.remove();
item.setSelected(false);
if (!arguments[1])
item.setPosition(new Point());
item._parentSymbol = this;
this._changed(5);
},
place: function(position) {
return new PlacedSymbol(this, position);
},
clone: function() {
return new Symbol(this._definition.clone(false));
}
});
var Item = Base.extend(Callback, {
statics: {
extend: function extend(src) {
if (src._serializeFields)
src._serializeFields = new Base(
this.prototype._serializeFields, src._serializeFields);
var res = extend.base.apply(this, arguments),
proto = res.prototype,
name = proto._class;
if (name)
proto._type = Base.hyphenate(name);
return res;
}
},
_class: 'Item',
_transformContent: true,
_boundsSelected: false,
_serializeFields: {
name: null,
matrix: new Matrix(),
locked: false,
visible: true,
blendMode: 'normal',
opacity: 1,
guide: false,
selected: false,
clipMask: false,
data: {}
},
initialize: function Item() {
},
_initialize: function(props, point) {
this._id = Item._id = (Item._id || 0) + 1;
if (!this._project) {
var project = paper.project;
if (props && props.insert === false) {
this._setProject(project);
} else {
(project.activeLayer || new Layer()).addChild(this);
}
}
this._style = new Style(this._project._currentStyle, this);
var matrix = this._matrix = new Matrix();
if (point)
matrix.translate(point);
matrix._owner = this;
return props ? this._set(props, { insert: true }) : true;
},
_events: new function() {
var mouseFlags = {
mousedown: {
mousedown: 1,
mousedrag: 1,
click: 1,
doubleclick: 1
},
mouseup: {
mouseup: 1,
mousedrag: 1,
click: 1,
doubleclick: 1
},
mousemove: {
mousedrag: 1,
mousemove: 1,
mouseenter: 1,
mouseleave: 1
}
};
var mouseEvent = {
install: function(type) {
var counters = this._project.view._eventCounters;
if (counters) {
for (var key in mouseFlags) {
counters[key] = (counters[key] || 0)
+ (mouseFlags[key][type] || 0);
}
}
},
uninstall: function(type) {
var counters = this._project.view._eventCounters;
if (counters) {
for (var key in mouseFlags)
counters[key] -= mouseFlags[key][type] || 0;
}
}
};
return Base.each(['onMouseDown', 'onMouseUp', 'onMouseDrag', 'onClick',
'onDoubleClick', 'onMouseMove', 'onMouseEnter', 'onMouseLeave'],
function(name) {
this[name] = mouseEvent;
}, {
onFrame: {
install: function() {
this._animateItem(true);
},
uninstall: function() {
this._animateItem(false);
}
},
onLoad: {}
}
);
},
_animateItem: function(animate) {
this._project.view._animateItem(this, animate);
},
_serialize: function(options, dictionary) {
var props = {},
that = this;
function serialize(fields) {
for (var key in fields) {
var value = that[key];
if (!Base.equals(value, key === 'leading'
? fields.fontSize * 1.2 : fields[key])) {
props[key] = Base.serialize(value, options,
key !== 'data', dictionary);
}
}
}
serialize(this._serializeFields);
if (!(this instanceof Group))
serialize(this._style._defaults);
return [ this._class, props ];
},
_changed: function(flags) {
var parent = this._parent,
project = this._project,
symbol = this._parentSymbol;
this._drawCount = null;
if (flags & 4) {
delete this._bounds;
delete this._position;
}
if (parent && (flags
& (4 | 8))) {
parent._clearBoundsCache();
}
if (flags & 2) {
this._clearBoundsCache();
}
if (project) {
if (flags & 1) {
project._needsRedraw = true;
}
if (project._changes) {
var entry = project._changesById[this._id];
if (entry) {
entry.flags |= flags;
} else {
entry = { item: this, flags: flags };
project._changesById[this._id] = entry;
project._changes.push(entry);
}
}
}
if (symbol)
symbol._changed(flags);
},
set: function(props) {
if (props)
this._set(props);
return this;
},
getId: function() {
return this._id;
},
getType: function() {
return this._type;
},
getName: function() {
return this._name;
},
setName: function(name, unique) {
if (this._name)
this._removeNamed();
if (name === (+name) + '')
throw new Error(
'Names consisting only of numbers are not supported.');
if (name && this._parent) {
var children = this._parent._children,
namedChildren = this._parent._namedChildren,
orig = name,
i = 1;
while (unique && children[name])
name = orig + ' ' + (i++);
(namedChildren[name] = namedChildren[name] || []).push(this);
children[name] = this;
}
this._name = name || undefined;
this._changed(32);
},
getStyle: function() {
return this._style;
},
setStyle: function(style) {
this.getStyle().set(style);
},
hasFill: function() {
return this.getStyle().hasFill();
},
hasStroke: function() {
return this.getStyle().hasStroke();
},
hasShadow: function() {
return this.getStyle().hasShadow();
}
}, Base.each(['locked', 'visible', 'blendMode', 'opacity', 'guide'],
function(name) {
var part = Base.capitalize(name),
name = '_' + name;
this['get' + part] = function() {
return this[name];
};
this['set' + part] = function(value) {
if (value != this[name]) {
this[name] = value;
this._changed(name === '_locked'
? 32 : 33);
}
};
}, {}), {
_locked: false,
_visible: true,
_blendMode: 'normal',
_opacity: 1,
_guide: false,
isSelected: function() {
if (this._children) {
for (var i = 0, l = this._children.length; i < l; i++)
if (this._children[i].isSelected())
return true;
}
return this._selected;
},
setSelected: function(selected ) {
if (this._children && !arguments[1]) {
for (var i = 0, l = this._children.length; i < l; i++)
this._children[i].setSelected(selected);
}
if ((selected = !!selected) != this._selected) {
this._selected = selected;
this._project._updateSelection(this);
this._changed(33);
}
},
_selected: false,
isFullySelected: function() {
if (this._children && this._selected) {
for (var i = 0, l = this._children.length; i < l; i++)
if (!this._children[i].isFullySelected())
return false;
return true;
}
return this._selected;
},
setFullySelected: function(selected) {
if (this._children) {
for (var i = 0, l = this._children.length; i < l; i++)
this._children[i].setFullySelected(selected);
}
this.setSelected(selected, true);
},
isClipMask: function() {
return this._clipMask;
},
setClipMask: function(clipMask) {
if (this._clipMask != (clipMask = !!clipMask)) {
this._clipMask = clipMask;
if (clipMask) {
this.setFillColor(null);
this.setStrokeColor(null);
}
this._changed(33);
if (this._parent)
this._parent._changed(256);
}
},
_clipMask: false,
getData: function() {
if (!this._data)
this._data = {};
return this._data;
},
setData: function(data) {
this._data = data;
},
getPosition: function() {
var pos = this._position
|| (this._position = this.getBounds().getCenter(true));
return new (arguments[0] ? Point : LinkedPoint)
(pos.x, pos.y, this, 'setPosition');
},
setPosition: function() {
this.translate(Point.read(arguments).subtract(this.getPosition(true)));
}
}, Base.each(['getBounds', 'getStrokeBounds', 'getHandleBounds', 'getRoughBounds'],
function(name) {
this[name] = function() {
var getter = this._boundsGetter,
bounds = this._getCachedBounds(typeof getter == 'string'
? getter : getter && getter[name] || name, arguments[0]);
return name === 'getBounds'
? new LinkedRectangle(bounds.x, bounds.y, bounds.width,
bounds.height, this, 'setBounds')
: bounds;
};
},
{
_getCachedBounds: function(getter, matrix, cacheItem) {
var cache = (!matrix || matrix.equals(this._matrix)) && getter;
if (cacheItem && this._parent) {
var id = cacheItem._id,
ref = this._parent._boundsCache
= this._parent._boundsCache || {
ids: {},
list: []
};
if (!ref.ids[id]) {
ref.list.push(cacheItem);
ref.ids[id] = cacheItem;
}
}
if (cache && this._bounds && this._bounds[cache])
return this._bounds[cache].clone();
var identity = this._matrix.isIdentity();
matrix = !matrix || matrix.isIdentity()
? identity ? null : this._matrix
: identity ? matrix : matrix.clone().concatenate(this._matrix);
var bounds = this._getBounds(getter, matrix, cache ? this : cacheItem);
if (cache) {
if (!this._bounds)
this._bounds = {};
this._bounds[cache] = bounds.clone();
}
return bounds;
},
_clearBoundsCache: function() {
if (this._boundsCache) {
for (var i = 0, list = this._boundsCache.list, l = list.length;
i < l; i++) {
var item = list[i];
delete item._bounds;
if (item != this && item._boundsCache)
item._clearBoundsCache();
}
delete this._boundsCache;
}
},
_getBounds: function(getter, matrix, cacheItem) {
var children = this._children;
if (!children || children.length == 0)
return new Rectangle();
var x1 = Infinity,
x2 = -x1,
y1 = x1,
y2 = x2;
for (var i = 0, l = children.length; i < l; i++) {
var child = children[i];
if (child._visible && !child.isEmpty()) {
var rect = child._getCachedBounds(getter, matrix, cacheItem);
x1 = Math.min(rect.x, x1);
y1 = Math.min(rect.y, y1);
x2 = Math.max(rect.x + rect.width, x2);
y2 = Math.max(rect.y + rect.height, y2);
}
}
return isFinite(x1)
? new Rectangle(x1, y1, x2 - x1, y2 - y1)
: new Rectangle();
},
setBounds: function(rect) {
rect = Rectangle.read(arguments);
var bounds = this.getBounds(),
matrix = new Matrix(),
center = rect.getCenter();
matrix.translate(center);
if (rect.width != bounds.width || rect.height != bounds.height) {
matrix.scale(
bounds.width != 0 ? rect.width / bounds.width : 1,
bounds.height != 0 ? rect.height / bounds.height : 1);
}
center = bounds.getCenter();
matrix.translate(-center.x, -center.y);
this.transform(matrix);
}
}), {
getMatrix: function() {
return this._matrix;
},
setMatrix: function(matrix) {
this._matrix.initialize(matrix);
if (this._transformContent)
this.applyMatrix(true);
this._changed(5);
},
getGlobalMatrix: function() {
return this._drawCount === this._project._drawCount
&& this._globalMatrix || null;
},
getTransformContent: function() {
return this._transformContent;
},
setTransformContent: function(transform) {
this._transformContent = transform;
if (transform)
this.applyMatrix();
},
getProject: function() {
return this._project;
},
_setProject: function(project) {
if (this._project != project) {
var hasOnFrame = this.responds('frame');
if (hasOnFrame)
this._animateItem(false);
this._project = project;
if (hasOnFrame)
this._animateItem(true);
if (this._children) {
for (var i = 0, l = this._children.length; i < l; i++) {
this._children[i]._setProject(project);
}
}
}
},
getLayer: function() {
var parent = this;
while (parent = parent._parent) {
if (parent instanceof Layer)
return parent;
}
return null;
},
getParent: function() {
return this._parent;
},
setParent: function(item) {
return item.addChild(this);
},
getChildren: function() {
return this._children;
},
setChildren: function(items) {
this.removeChildren();
this.addChildren(items);
},
getFirstChild: function() {
return this._children && this._children[0] || null;
},
getLastChild: function() {
return this._children && this._children[this._children.length - 1]
|| null;
},
getNextSibling: function() {
return this._parent && this._parent._children[this._index + 1] || null;
},
getPreviousSibling: function() {
return this._parent && this._parent._children[this._index - 1] || null;
},
getIndex: function() {
return this._index;
},
isInserted: function() {
return this._parent ? this._parent.isInserted() : false;
},
equals: function(item) {
return item === this || item && this._class === item._class
&& this._style.equals(item._style)
&& this._matrix.equals(item._matrix)
&& this._locked === item._locked
&& this._visible === item._visible
&& this._blendMode === item._blendMode
&& this._opacity === item._opacity
&& this._clipMask === item._clipMask
&& this._guide === item._guide
&& this._equals(item)
|| false;
},
_equals: function(item) {
return Base.equals(this._children, item._children);
},
clone: function(insert) {
return this._clone(new this.constructor({ insert: false }), insert);
},
_clone: function(copy, insert) {
copy.setStyle(this._style);
if (this._children) {
for (var i = 0, l = this._children.length; i < l; i++)
copy.addChild(this._children[i].clone(false), true);
}
if (insert || insert === undefined)
copy.insertAbove(this);
var keys = ['_locked', '_visible', '_blendMode', '_opacity',
'_clipMask', '_guide'];
for (var i = 0, l = keys.length; i < l; i++) {
var key = keys[i];
if (this.hasOwnProperty(key))
copy[key] = this[key];
}
copy._matrix.initialize(this._matrix);
copy._data = this._data ? Base.clone(this._data) : null;
copy.setSelected(this._selected);
if (this._name)
copy.setName(this._name, true);
return copy;
},
copyTo: function(itemOrProject) {
return itemOrProject.addChild(this.clone(false));
},
rasterize: function(resolution) {
var bounds = this.getStrokeBounds(),
scale = (resolution || 72) / 72,
topLeft = bounds.getTopLeft().floor(),
bottomRight = bounds.getBottomRight().ceil()
size = new Size(bottomRight.subtract(topLeft)),
canvas = CanvasProvider.getCanvas(size),
ctx = canvas.getContext('2d'),
matrix = new Matrix().scale(scale).translate(topLeft.negate());
ctx.save();
matrix.applyToContext(ctx);
this.draw(ctx, new Base({ transforms: [matrix] }));
ctx.restore();
var raster = new Raster({
canvas: canvas,
insert: false
});
raster.setPosition(topLeft.add(size.divide(2)));
raster.insertAbove(this);
return raster;
},
contains: function() {
return !!this._contains(
this._matrix._inverseTransform(Point.read(arguments)));
},
_contains: function(point) {
if (this._children) {
for (var i = this._children.length - 1; i >= 0; i--) {
if (this._children[i].contains(point))
return true;
}
return false;
}
return point.isInside(this._getBounds('getBounds'));
},
hitTest: function(point, options) {
point = Point.read(arguments);
options = HitResult.getOptions(Base.read(arguments));
if (this._locked || !this._visible || this._guide && !options.guides)
return null;
if (!this._children && !this.getRoughBounds()
.expand(2 * options.tolerance)._containsPoint(point))
return null;
point = this._matrix._inverseTransform(point);
var that = this,
res;
function checkBounds(type, part) {
var pt = bounds['get' + part]();
if (point.getDistance(pt) < options.tolerance)
return new HitResult(type, that,
{ name: Base.hyphenate(part), point: pt });
}
if ((options.center || options.bounds) &&
!(this instanceof Layer && !this._parent)) {
var bounds = this._getBounds('getBounds');
if (options.center)
res = checkBounds('center', 'Center');
if (!res && options.bounds) {
var points = [
'TopLeft', 'TopRight', 'BottomLeft', 'BottomRight',
'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'
];
for (var i = 0; i < 8 && !res; i++)
res = checkBounds('bounds', points[i]);
}
}
if ((res || (res = this._children || !(options.guides && !this._guide
|| options.selected && !this._selected)
? this._hitTest(point, options) : null))
&& res.point) {
res.point = that._matrix.transform(res.point);
}
return res;
},
_hitTest: function(point, options) {
var children = this._children;
if (children) {
for (var i = children.length - 1, res; i >= 0; i--)
if (res = children[i].hitTest(point, options))
return res;
} else if (options.fill && this.hasFill() && this._contains(point)) {
return new HitResult('fill', this);
}
},
matches: function(match) {
function matchObject(obj1, obj2) {
for (var i in obj1) {
if (obj1.hasOwnProperty(i)) {
var val1 = obj1[i],
val2 = obj2[i];
if (Base.isPlainObject(val1) && Base.isPlainObject(val2)) {
if (!matchObject(val1, val2))
return false;
} else if (!Base.equals(val1, val2)) {
return false;
}
}
}
return true;
}
for (var key in match) {
if (match.hasOwnProperty(key)) {
var value = this[key],
compare = match[key];
if (compare instanceof RegExp) {
if (!compare.test(value))
return false;
} else if (typeof compare === 'function') {
if (!compare(value))
return false;
} else if (Base.isPlainObject(compare)) {
if (!matchObject(compare, value))
return false;
} else if (!Base.equals(value, compare)) {
return false;
}
}
}
return true;
}
}, new function() {
function getItems(item, match, list) {
var children = item._children,
items = list && [];
for (var i = 0, l = children && children.length; i < l; i++) {
var child = children[i];
if (child.matches(match)) {
if (list) {
items.push(child);
} else {
return child;
}
}
var res = getItems(child, match, list);
if (list) {
items.push.apply(items, res);
} else if (res) {
return res;
}
}
return list ? items : null;
}
return {
getItems: function(match) {
return getItems(this, match, true);
},
getItem: function(match) {
return getItems(this, match, false);
}
};
}, {
importJSON: function(json) {
var res = Base.importJSON(json, this);
return res !== this
? this.addChild(res)
: res;
},
addChild: function(item, _preserve) {
return this.insertChild(undefined, item, _preserve);
},
insertChild: function(index, item, _preserve) {
var res = this.insertChildren(index, [item], _preserve);
return res && res[0];
},
addChildren: function(items, _preserve) {
return this.insertChildren(this._children.length, items, _preserve);
},
insertChildren: function(index, items, _preserve, _type) {
var children = this._children;
if (children && items && items.length > 0) {
items = Array.prototype.slice.apply(items);
for (var i = items.length - 1; i >= 0; i--) {
var item = items[i];
if (_type && item._type !== _type)
items.splice(i, 1);
else
item._remove(true);
}
Base.splice(children, items, index, 0);
for (var i = 0, l = items.length; i < l; i++) {
var item = items[i];
item._parent = this;
item._setProject(this._project);
if (item._name)
item.setName(item._name);
}
this._changed(7);
} else {
items = null;
}
return items;
},
_insert: function(above, item, _preserve) {
if (!item._parent)
return null;
var index = item._index + (above ? 1 : 0);
if (item._parent === this._parent && index > this._index)
index--;
return item._parent.insertChild(index, this, _preserve);
},
insertAbove: function(item, _preserve) {
return this._insert(true, item, _preserve);
},
insertBelow: function(item, _preserve) {
return this._insert(false, item, _preserve);
},
sendToBack: function() {
return this._parent.insertChild(0, this);
},
bringToFront: function() {
return this._parent.addChild(this);
},
appendTop: '#addChild',
appendBottom: function(item) {
return this.insertChild(0, item);
},
moveAbove: '#insertAbove',
moveBelow: '#insertBelow',
reduce: function() {
if (this._children && this._children.length === 1) {
var child = this._children[0];
child.insertAbove(this);
child.setStyle(this._style);
this.remove();
return child;
}
return this;
},
_removeNamed: function() {
var children = this._parent._children,
namedChildren = this._parent._namedChildren,
name = this._name,
namedArray = namedChildren[name],
index = namedArray ? namedArray.indexOf(this) : -1;
if (index == -1)
return;
if (children[name] == this)
delete children[name];
namedArray.splice(index, 1);
if (namedArray.length) {
children[name] = namedArray[namedArray.length - 1];
} else {
delete namedChildren[name];
}
},
_remove: function(notify) {
if (this._parent) {
if (this._name)
this._removeNamed();
if (this._index != null)
Base.splice(this._parent._children, null, this._index, 1);
if (this.responds('frame'))
this._animateItem(false);
if (notify)
this._parent._changed(7);
this._parent = null;
return true;
}
return false;
},
remove: function() {
return this._remove(true);
},
removeChildren: function(from, to) {
if (!this._children)
return null;
from = from || 0;
to = Base.pick(to, this._children.length);
var removed = Base.splice(this._children, null, from, to - from);
for (var i = removed.length - 1; i >= 0; i--)
removed[i]._remove(false);
if (removed.length > 0)
this._changed(7);
return removed;
},
clear: '#removeChildren',
reverseChildren: function() {
if (this._children) {
this._children.reverse();
for (var i = 0, l = this._children.length; i < l; i++)
this._children[i]._index = i;
this._changed(7);
}
},
isEmpty: function() {
return !this._children || this._children.length == 0;
},
isEditable: function() {
var item = this;
while (item) {
if (!item._visible || item._locked)
return false;
item = item._parent;
}
return true;
},
_getOrder: function(item) {
function getList(item) {
var list = [];
do {
list.unshift(item);
} while (item = item._parent);
return list;
}
var list1 = getList(this),
list2 = getList(item);
for (var i = 0, l = Math.min(list1.length, list2.length); i < l; i++) {
if (list1[i] != list2[i]) {
return list1[i]._index < list2[i]._index ? 1 : -1;
}
}
return 0;
},
hasChildren: function() {
return this._children && this._children.length > 0;
},
isAbove: function(item) {
return this._getOrder(item) === -1;
},
isBelow: function(item) {
return this._getOrder(item) === 1;
},
isParent: function(item) {
return this._parent === item;
},
isChild: function(item) {
return item && item._parent === this;
},
isDescendant: function(item) {
var parent = this;
while (parent = parent._parent) {
if (parent == item)
return true;
}
return false;
},
isAncestor: function(item) {
return item ? item.isDescendant(this) : false;
},
isGroupedWith: function(item) {
var parent = this._parent;
while (parent) {
if (parent._parent
&& /^(group|layer|compound-path)$/.test(parent._type)
&& item.isDescendant(parent))
return true;
parent = parent._parent;
}
return false;
},
scale: function(hor, ver , center) {
if (arguments.length < 2 || typeof ver === 'object') {
center = ver;
ver = hor;
}
return this.transform(new Matrix().scale(hor, ver,
center || this.getPosition(true)));
},
translate: function() {
var mx = new Matrix();
return this.transform(mx.translate.apply(mx, arguments));
},
rotate: function(angle, center) {
return this.transform(new Matrix().rotate(angle,
center || this.getPosition(true)));
},
shear: function(hor, ver, center) {
if (arguments.length < 2 || typeof ver === 'object') {
center = ver;
ver = hor;
}
return this.transform(new Matrix().shear(hor, ver,
center || this.getPosition(true)));
},
transform: function(matrix ) {
var bounds = this._bounds,
position = this._position;
this._matrix.preConcatenate(matrix);
if (this._transformContent || arguments[1])
this.applyMatrix(true);
this._changed(5);
if (bounds && matrix.getRotation() % 90 === 0) {
for (var key in bounds) {
var rect = bounds[key];
matrix._transformBounds(rect, rect);
}
var getter = this._boundsGetter,
rect = bounds[getter && getter.getBounds || getter || 'getBounds'];
if (rect)
this._position = rect.getCenter(true);
this._bounds = bounds;
} else if (position) {
this._position = matrix._transformPoint(position, position);
}
return this;
},
_applyMatrix: function(matrix, applyMatrix) {
var children = this._children;
if (children && children.length > 0) {
for (var i = 0, l = children.length; i < l; i++)
children[i].transform(matrix, applyMatrix);
return true;
}
},
applyMatrix: function(_dontNotify) {
var matrix = this._matrix;
if (this._applyMatrix(matrix, true)) {
var style = this._style,
fillColor = style.getFillColor(true),
strokeColor = style.getStrokeColor(true);
if (fillColor)
fillColor.transform(matrix);
if (strokeColor)
strokeColor.transform(matrix);
matrix.reset();
}
if (!_dontNotify)
this._changed(5);
},
globalToLocal: function() {
var matrix = this.getGlobalMatrix();
return matrix && matrix._transformPoint(Point.read(arguments));
},
localToGlobal: function() {
var matrix = this.getGlobalMatrix();
return matrix && matrix._inverseTransform(Point.read(arguments));
},
fitBounds: function(rectangle, fill) {
rectangle = Rectangle.read(arguments);
var bounds = this.getBounds(),
itemRatio = bounds.height / bounds.width,
rectRatio = rectangle.height / rectangle.width,
scale = (fill ? itemRatio > rectRatio : itemRatio < rectRatio)
? rectangle.width / bounds.width
: rectangle.height / bounds.height,
newBounds = new Rectangle(new Point(),
new Size(bounds.width * scale, bounds.height * scale));
newBounds.setCenter(rectangle.getCenter());
this.setBounds(newBounds);
},
_setStyles: function(ctx) {
var style = this._style,
fillColor = style.getFillColor(),
strokeColor = style.getStrokeColor(),
shadowColor = style.getShadowColor();
if (fillColor)
ctx.fillStyle = fillColor.toCanvasStyle(ctx);
if (strokeColor) {
var strokeWidth = style.getStrokeWidth();
if (strokeWidth > 0) {
ctx.strokeStyle = strokeColor.toCanvasStyle(ctx);
ctx.lineWidth = strokeWidth;
var strokeJoin = style.getStrokeJoin(),
strokeCap = style.getStrokeCap(),
miterLimit = style.getMiterLimit();
if (strokeJoin)
ctx.lineJoin = strokeJoin;
if (strokeCap)
ctx.lineCap = strokeCap;
if (miterLimit)
ctx.miterLimit = miterLimit;
if (paper.support.nativeDash) {
var dashArray = style.getDashArray(),
dashOffset = style.getDashOffset();
if (dashArray && dashArray.length) {
if ('setLineDash' in ctx) {
ctx.setLineDash(dashArray);
ctx.lineDashOffset = dashOffset;
} else {
ctx.mozDash = dashArray;
ctx.mozDashOffset = dashOffset;
}
}
}
}
}
if (shadowColor) {
var shadowBlur = style.getShadowBlur();
if (shadowBlur > 0) {
ctx.shadowColor = shadowColor.toCanvasStyle(ctx);
ctx.shadowBlur = shadowBlur;
var offset = this.getShadowOffset();
ctx.shadowOffsetX = offset.x;
ctx.shadowOffsetY = offset.y;
}
}
},
draw: function(ctx, param) {
if (!this._visible || this._opacity === 0)
return;
this._drawCount = this._project._drawCount;
var trackTransforms = param.trackTransforms,
transforms = param.transforms,
parentMatrix = transforms[transforms.length - 1],
globalMatrix = parentMatrix.clone().concatenate(this._matrix);
if (trackTransforms)
transforms.push(this._globalMatrix = globalMatrix);
var blendMode = this._blendMode,
opacity = this._opacity,
normalBlend = blendMode === 'normal',
nativeBlend = BlendMode.nativeModes[blendMode],
direct = normalBlend && opacity === 1
|| (nativeBlend || normalBlend && opacity < 1)
&& this._canComposite(),
mainCtx, itemOffset, prevOffset;
if (!direct) {
var bounds = this.getStrokeBounds(parentMatrix);
if (!bounds.width || !bounds.height)
return;
prevOffset = param.offset;
itemOffset = param.offset = bounds.getTopLeft().floor();
mainCtx = ctx;
ctx = CanvasProvider.getContext(
bounds.getSize().ceil().add(new Size(1, 1)), param.ratio);
}
ctx.save();
if (direct) {
ctx.globalAlpha = opacity;
if (nativeBlend)
ctx.globalCompositeOperation = blendMode;
} else {
ctx.translate(-itemOffset.x, -itemOffset.y);
}
(direct ? this._matrix : globalMatrix).applyToContext(ctx);
if (!direct && param.clipItem)
param.clipItem.draw(ctx, param.extend({ clip: true }));
this._draw(ctx, param);
ctx.restore();
if (trackTransforms)
transforms.pop();
if (param.clip)
ctx.clip();
if (!direct) {
BlendMode.process(blendMode, ctx, mainCtx, opacity,
itemOffset.subtract(prevOffset).multiply(param.ratio));
CanvasProvider.release(ctx);
param.offset = prevOffset;
}
},
_canComposite: function() {
return false;
}
}, Base.each(['down', 'drag', 'up', 'move'], function(name) {
this['removeOn' + Base.capitalize(name)] = function() {
var hash = {};
hash[name] = true;
return this.removeOn(hash);
};
}, {
removeOn: function(obj) {
for (var name in obj) {
if (obj[name]) {
var key = 'mouse' + name,
project = this._project,
sets = project._removeSets = project._removeSets || {};
sets[key] = sets[key] || {};
sets[key][this._id] = this;
}
}
return this;
}
}));
var Group = Item.extend({
_class: 'Group',
_serializeFields: {
children: []
},
initialize: function Group(arg) {
this._children = [];
this._namedChildren = {};
if (!this._initialize(arg))
this.addChildren(Array.isArray(arg) ? arg : arguments);
},
_changed: function _changed(flags) {
_changed.base.call(this, flags);
if (flags & 2 && this._transformContent
&& !this._matrix.isIdentity()) {
this.applyMatrix();
}
if (flags & (2 | 256)) {
delete this._clipItem;
}
},
_getClipItem: function() {
if (this._clipItem !== undefined)
return this._clipItem;
for (var i = 0, l = this._children.length; i < l; i++) {
var child = this._children[i];
if (child._clipMask)
return this._clipItem = child;
}
return this._clipItem = null;
},
isClipped: function() {
return !!this._getClipItem();
},
setClipped: function(clipped) {
var child = this.getFirstChild();
if (child)
child.setClipMask(clipped);
},
_draw: function(ctx, param) {
var clipItem = param.clipItem = this._getClipItem();
if (clipItem)
clipItem.draw(ctx, param.extend({ clip: true }));
for (var i = 0, l = this._children.length; i < l; i++) {
var item = this._children[i];
if (item !== clipItem)
item.draw(ctx, param);
}
param.clipItem = null;
}
});
var Layer = Group.extend({
_class: 'Layer',
initialize: function Layer(arg) {
var props = Base.isPlainObject(arg)
? new Base(arg)
: { children: Array.isArray(arg) ? arg : arguments },
insert = props.insert;
props.insert = false;
Group.call(this, props);
if (insert || insert === undefined) {
this._project.addChild(this);
this.activate();
}
},
_remove: function _remove(notify) {
if (this._parent)
return _remove.base.call(this, notify);
if (this._index != null) {
if (this._project.activeLayer === this)
this._project.activeLayer = this.getNextSibling()
|| this.getPreviousSibling();
Base.splice(this._project.layers, null, this._index, 1);
this._project._needsRedraw = true;
return true;
}
return false;
},
getNextSibling: function getNextSibling() {
return this._parent ? getNextSibling.base.call(this)
: this._project.layers[this._index + 1] || null;
},
getPreviousSibling: function getPreviousSibling() {
return this._parent ? getPreviousSibling.base.call(this)
: this._project.layers[this._index - 1] || null;
},
isInserted: function isInserted() {
return this._parent ? isInserted.base.call(this) : this._index != null;
},
activate: function() {
this._project.activeLayer = this;
},
_insert: function _insert(above, item, _preserve) {
if (item instanceof Layer && !item._parent) {
this._remove(true);
Base.splice(item._project.layers, [this],
item._index + (above ? 1 : 0), 0);
this._setProject(item._project);
return this;
}
return _insert.base.call(this, above, item, _preserve);
}
});
var Shape = Item.extend({
_class: 'Shape',
_transformContent: false,
_boundsSelected: true,
initialize: function Shape(shape, center, size, radius, props) {
this._shape = shape;
this._size = size;
this._radius = radius;
this._initialize(props, center);
},
_equals: function(item) {
return this._shape === item._shape
&& this._size.equals(item._size)
&& Base.equals(this._radius, item._radius);
},
clone: function(insert) {
return this._clone(new Shape(this._shape, this.getPosition(true),
this._size.clone(),
this._radius.clone ? this._radius.clone() : this._radius,
{ insert: false }), insert);
},
getShape: function() {
return this._shape;
},
getSize: function() {
var size = this._size;
return new LinkedSize(size.width, size.height, this, 'setSize');
},
setSize: function() {
var shape = this._shape,
size = Size.read(arguments);
if (!this._size.equals(size)) {
var width = size.width,
height = size.height;
if (shape === 'rectangle') {
var radius = Size.min(this._radius, size.divide(2));
this._radius.set(radius.width, radius.height);
} else if (shape === 'circle') {
width = height = (width + height) / 2;
this._radius = width / 2;
} else if (shape === 'ellipse') {
this._radius.set(width / 2, height / 2);
}
this._size.set(width, height);
this._changed(5);
}
},
getRadius: function() {
var rad = this._radius;
return this._shape === 'circle'
? rad
: new LinkedSize(rad.width, rad.height, this, 'setRadius');
},
setRadius: function(radius) {
var shape = this._shape;
if (shape === 'circle') {
if (radius === this._radius)
return;
var size = radius * 2;
this._radius = radius;
this._size.set(size, size);
} else {
radius = Size.read(arguments);
if (this._radius.equals(radius))
return;
this._radius.set(radius.width, radius.height);
if (shape === 'rectangle') {
var size = Size.max(this._size, radius.multiply(2));
this._size.set(size.width, size.height);
} else if (shape === 'ellipse') {
this._size.set(radius.width * 2, radius.height * 2);
}
}
this._changed(5);
},
isEmpty: function() {
return false;
},
toPath: function(insert) {
var path = new Path[Base.capitalize(this._shape)]({
center: new Point(),
size: this._size,
radius: this._radius,
insert: false
});
path.setStyle(this._style);
path.transform(this._matrix);
if (insert || insert === undefined)
path.insertAbove(this);
return path;
},
_draw: function(ctx, param) {
var style = this._style,
hasFill = style.hasFill(),
hasStroke = style.hasStroke(),
clip = param.clip;
if (hasFill || hasStroke || clip) {
var radius = this._radius,
shape = this._shape;
ctx.beginPath();
if (shape === 'circle') {
ctx.arc(0, 0, radius, 0, Math.PI * 2, true);
} else {
var rx = radius.width,
ry = radius.height,
kappa = Numerical.KAPPA;
if (shape === 'ellipse') {
var cx = rx * kappa,
cy = ry * kappa;
ctx.moveTo(-rx, 0);
ctx.bezierCurveTo(-rx, -cy, -cx, -ry, 0, -ry);
ctx.bezierCurveTo(cx, -ry, rx, -cy, rx, 0);
ctx.bezierCurveTo(rx, cy, cx, ry, 0, ry);
ctx.bezierCurveTo(-cx, ry, -rx, cy, -rx, 0);
} else {
var size = this._size,
width = size.width,
height = size.height;
if (rx === 0 && ry === 0) {
ctx.rect(-width / 2, -height / 2, width, height);
} else {
kappa = 1 - kappa;
var x = width / 2,
y = height / 2,
cx = rx * kappa,
cy = ry * kappa;
ctx.moveTo(-x, -y + ry);
ctx.bezierCurveTo(-x, -y + cy, -x + cx, -y, -x + rx, -y);
ctx.lineTo(x - rx, -y);
ctx.bezierCurveTo(x - cx, -y, x, -y + cy, x, -y + ry);
ctx.lineTo(x, y - ry);
ctx.bezierCurveTo(x, y - cy, x - cx, y, x - rx, y);
ctx.lineTo(-x + rx, y);
ctx.bezierCurveTo(-x + cx, y, -x, y - cy, -x, y - ry);
}
}
}
ctx.closePath();
}
if (!clip && (hasFill || hasStroke)) {
this._setStyles(ctx);
if (hasFill) {
ctx.fill(style.getWindingRule());
ctx.shadowColor = 'rgba(0,0,0,0)';
}
if (hasStroke)
ctx.stroke();
}
},
_canComposite: function() {
return !(this.hasFill() && this.hasStroke());
},
_getBounds: function(getter, matrix) {
var rect = new Rectangle(this._size).setCenter(0, 0);
if (getter !== 'getBounds' && this.hasStroke())
rect = rect.expand(this.getStrokeWidth());
return matrix ? matrix._transformBounds(rect) : rect;
}
},
new function() {
function getCornerCenter(that, point, expand) {
var radius = that._radius;
if (!radius.isZero()) {
var halfSize = that._size.divide(2);
for (var i = 0; i < 4; i++) {
var dir = new Point(i & 1 ? 1 : -1, i > 1 ? 1 : -1),
corner = dir.multiply(halfSize),
center = corner.subtract(dir.multiply(radius)),
rect = new Rectangle(corner, center);
if ((expand ? rect.expand(expand) : rect).contains(point))
return center;
}
}
}
function getEllipseRadius(point, radius) {
var angle = point.getAngleInRadians(),
width = radius.width * 2,
height = radius.height * 2,
x = width * Math.sin(angle),
y = height * Math.cos(angle);
return width * height / (2 * Math.sqrt(x * x + y * y));
}
return {
_contains: function _contains(point) {
if (this._shape === 'rectangle') {
var center = getCornerCenter(this, point);
return center
? point.subtract(center).divide(this._radius)
.getLength() <= 1
: _contains.base.call(this, point);
} else {
return point.divide(this.size).getLength() <= 0.5;
}
},
_hitTest: function _hitTest(point, options) {
var hit = false;
if (this.hasStroke()) {
var shape = this._shape,
radius = this._radius,
strokeWidth = this.getStrokeWidth() + 2 * options.tolerance;
if (shape === 'rectangle') {
var center = getCornerCenter(this, point, strokeWidth);
if (center) {
var pt = point.subtract(center);
hit = 2 * Math.abs(pt.getLength()
- getEllipseRadius(pt, radius)) <= strokeWidth;
} else {
var rect = new Rectangle(this._size).setCenter(0, 0),
outer = rect.expand(strokeWidth),
inner = rect.expand(-strokeWidth);
hit = outer._containsPoint(point)
&& !inner._containsPoint(point);
}
} else {
if (shape === 'ellipse')
radius = getEllipseRadius(point, radius);
hit = 2 * Math.abs(point.getLength() - radius)
<= strokeWidth;
}
}
return hit
? new HitResult('stroke', this)
: _hitTest.base.apply(this, arguments);
}
};
}, {
statics: new function() {
function createShape(shape, point, size, radius, args) {
return new Shape(shape, point, size, radius, Base.getNamed(args));
}
return {
Circle: function() {
var center = Point.readNamed(arguments, 'center'),
radius = Base.readNamed(arguments, 'radius');
return createShape('circle', center, new Size(radius * 2), radius,
arguments);
},
Rectangle: function() {
var rect = Rectangle.readNamed(arguments, 'rectangle'),
radius = Size.min(Size.readNamed(arguments, 'radius'),
rect.getSize(true).divide(2));
return createShape('rectangle', rect.getCenter(true),
rect.getSize(true), radius, arguments);
},
Ellipse: function() {
var ellipse = Shape._readEllipse(arguments);
radius = ellipse.radius;
return createShape('ellipse', ellipse.center, radius.multiply(2),
radius, arguments);
},
_readEllipse: function(args) {
var center,
radius;
if (Base.hasNamed(args, 'radius')) {
center = Point.readNamed(args, 'center');
radius = Size.readNamed(args, 'radius');
} else {
var rect = Rectangle.readNamed(args, 'rectangle');
center = rect.getCenter(true);
radius = rect.getSize(true).divide(2);
}
return { center: center, radius: radius };
}
};
}});
var Raster = Item.extend({
_class: 'Raster',
_transformContent: false,
_boundsGetter: 'getBounds',
_boundsSelected: true,
_serializeFields: {
source: null
},
initialize: function Raster(object, position) {
if (!this._initialize(object,
position !== undefined && Point.read(arguments, 1))) {
if (typeof object === 'string') {
this.setSource(object);
} else {
this.setImage(object);
}
}
if (!this._size)
this._size = new Size();
},
_equals: function(item) {
return this.getSource() === item.getSource();
},
clone: function(insert) {
var param = { insert: false },
image = this._image;
if (image) {
param.image = image;
} else if (this._canvas) {
var canvas = param.canvas = CanvasProvider.getCanvas(this._size);
canvas.getContext('2d').drawImage(this._canvas, 0, 0);
}
return this._clone(new Raster(param), insert);
},
getSize: function() {
var size = this._size;
return new LinkedSize(size.width, size.height, this, 'setSize');
},
setSize: function() {
var size = Size.read(arguments);
if (!this._size.equals(size)) {
var element = this.getElement();
this.setCanvas(CanvasProvider.getCanvas(size));
if (element)
this.getContext(true).drawImage(element, 0, 0,
size.width, size.height);
}
},
getWidth: function() {
return this._size.width;
},
getHeight: function() {
return this._size.height;
},
isEmpty: function() {
return this._size.width == 0 && this._size.height == 0;
},
getPpi: function() {
var matrix = this._matrix,
orig = new Point(0, 0).transform(matrix),
u = new Point(1, 0).transform(matrix).subtract(orig),
v = new Point(0, 1).transform(matrix).subtract(orig);
return new Size(
72 / u.getLength(),
72 / v.getLength()
);
},
getImage: function() {
return this._image;
},
setImage: function(image) {
if (this._canvas)
CanvasProvider.release(this._canvas);
if (image.getContext) {
this._image = null;
this._canvas = image;
} else {
this._image = image;
this._canvas = null;
}
this._size = new Size(
image.naturalWidth || image.width,
image.naturalHeight || image.height);
this._context = null;
this._changed(5 | 129);
},
getCanvas: function() {
if (!this._canvas) {
var ctx = CanvasProvider.getContext(this._size);
try {
if (this._image)
ctx.drawImage(this._image, 0, 0);
this._canvas = ctx.canvas;
} catch (e) {
CanvasProvider.release(ctx);
}
}
return this._canvas;
},
setCanvas: '#setImage',
getContext: function() {
if (!this._context)
this._context = this.getCanvas().getContext('2d');
if (arguments[0]) {
this._image = null;
this._changed(129);
}
return this._context;
},
setContext: function(context) {
this._context = context;
},
getSource: function() {
return this._image && this._image.src || this.toDataURL();
},
setSource: function(src) {
var that = this,
image = document.getElementById(src) || new Image();
function loaded() {
var view = that._project.view;
if (view)
paper = view._scope;
that.fire('load');
if (view)
view.draw(true);
}
if (image.naturalWidth && image.naturalHeight) {
setTimeout(loaded, 0);
} else {
DomEvent.add(image, {
load: function() {
that.setImage(image);
loaded();
}
});
if (!image.src)
image.src = src;
}
this.setImage(image);
},
getElement: function() {
return this._canvas || this._image;
},
getSubCanvas: function(rect) {
rect = Rectangle.read(arguments);
var ctx = CanvasProvider.getContext(rect.getSize());
ctx.drawImage(this.getCanvas(), rect.x, rect.y,
rect.width, rect.height, 0, 0, rect.width, rect.height);
return ctx.canvas;
},
getSubRaster: function(rect) {
rect = Rectangle.read(arguments);
var raster = new Raster({
canvas: this.getSubCanvas(rect),
insert: false
});
raster.translate(rect.getCenter().subtract(this.getSize().divide(2)));
raster._matrix.preConcatenate(this._matrix);
raster.insertAbove(this);
return raster;
},
toDataURL: function() {
var src = this._image && this._image.src;
if (/^data:/.test(src))
return src;
var canvas = this.getCanvas();
return canvas ? canvas.toDataURL() : null;
},
drawImage: function(image, point) {
point = Point.read(arguments, 1);
this.getContext(true).drawImage(image, point.x, point.y);
},
getAverageColor: function(object) {
var bounds, path;
if (!object) {
bounds = this.getBounds();
} else if (object instanceof PathItem) {
path = object;
bounds = object.getBounds();
} else if (object.width) {
bounds = new Rectangle(object);
} else if (object.x) {
bounds = new Rectangle(object.x - 0.5, object.y - 0.5, 1, 1);
}
var sampleSize = 32,
width = Math.min(bounds.width, sampleSize),
height = Math.min(bounds.height, sampleSize);
var ctx = Raster._sampleContext;
if (!ctx) {
ctx = Raster._sampleContext = CanvasProvider.getContext(
new Size(sampleSize));
} else {
ctx.clearRect(0, 0, sampleSize + 1, sampleSize + 1);
}
ctx.save();
var matrix = new Matrix()
.scale(width / bounds.width, height / bounds.height)
.translate(-bounds.x, -bounds.y);
matrix.applyToContext(ctx);
if (path)
path.draw(ctx, new Base({ clip: true, transforms: [matrix] }));
this._matrix.applyToContext(ctx);
ctx.drawImage(this.getElement(),
-this._size.width / 2, -this._size.height / 2);
ctx.restore();
var pixels = ctx.getImageData(0.5, 0.5, Math.ceil(width),
Math.ceil(height)).data,
channels = [0, 0, 0],
total = 0;
for (var i = 0, l = pixels.length; i < l; i += 4) {
var alpha = pixels[i + 3];
total += alpha;
alpha /= 255;
channels[0] += pixels[i] * alpha;
channels[1] += pixels[i + 1] * alpha;
channels[2] += pixels[i + 2] * alpha;
}
for (var i = 0; i < 3; i++)
channels[i] /= total;
return total ? Color.read(channels) : null;
},
getPixel: function(point) {
point = Point.read(arguments);
var data = this.getContext().getImageData(point.x, point.y, 1, 1).data;
return new Color('rgb', [data[0] / 255, data[1] / 255, data[2] / 255],
data[3] / 255);
},
setPixel: function() {
var point = Point.read(arguments),
color = Color.read(arguments),
components = color._convert('rgb'),
alpha = color._alpha,
ctx = this.getContext(true),
imageData = ctx.createImageData(1, 1),
data = imageData.data;
data[0] = components[0] * 255;
data[1] = components[1] * 255;
data[2] = components[2] * 255;
data[3] = alpha != null ? alpha * 255 : 255;
ctx.putImageData(imageData, point.x, point.y);
},
createImageData: function(size) {
size = Size.read(arguments);
return this.getContext().createImageData(size.width, size.height);
},
getImageData: function(rect) {
rect = Rectangle.read(arguments);
if (rect.isEmpty())
rect = new Rectangle(this._size);
return this.getContext().getImageData(rect.x, rect.y,
rect.width, rect.height);
},
setImageData: function(data, point) {
point = Point.read(arguments, 1);
this.getContext(true).putImageData(data, point.x, point.y);
},
_getBounds: function(getter, matrix) {
var rect = new Rectangle(this._size).setCenter(0, 0);
return matrix ? matrix._transformBounds(rect) : rect;
},
_hitTest: function(point) {
if (this._contains(point)) {
var that = this;
return new HitResult('pixel', that, {
offset: point.add(that._size.divide(2)).round(),
color: {
get: function() {
return that.getPixel(this.offset);
}
}
});
}
},
_draw: function(ctx) {
var element = this.getElement();
if (element) {
ctx.globalAlpha = this._opacity;
ctx.drawImage(element,
-this._size.width / 2, -this._size.height / 2);
}
},
_canComposite: function() {
return true;
}
});
var PlacedSymbol = Item.extend({
_class: 'PlacedSymbol',
_transformContent: false,
_boundsGetter: { getBounds: 'getStrokeBounds' },
_boundsSelected: true,
_serializeFields: {
symbol: null
},
initialize: function PlacedSymbol(arg0, arg1) {
if (!this._initialize(arg0,
arg1 !== undefined && Point.read(arguments, 1)))
this.setSymbol(arg0 instanceof Symbol ? arg0 : new Symbol(arg0));
},
_equals: function(item) {
return this._symbol === item._symbol;
},
getSymbol: function() {
return this._symbol;
},
setSymbol: function(symbol) {
if (this._symbol)
delete this._symbol._instances[this._id];
this._symbol = symbol;
symbol._instances[this._id] = this;
},
clone: function(insert) {
return this._clone(new PlacedSymbol({
symbol: this.symbol,
insert: false
}), insert);
},
isEmpty: function() {
return this._symbol._definition.isEmpty();
},
_getBounds: function(getter, matrix) {
return this.symbol._definition._getCachedBounds(getter, matrix);
},
_hitTest: function(point, options, matrix) {
var result = this._symbol._definition._hitTest(point, options, matrix);
if (result)
result.item = this;
return result;
},
_draw: function(ctx, param) {
this.symbol._definition.draw(ctx, param);
}
});
var HitResult = Base.extend({
_class: 'HitResult',
initialize: function HitResult(type, item, values) {
this.type = type;
this.item = item;
if (values) {
values.enumerable = true;
this.inject(values);
}
},
statics: {
getOptions: function(options) {
return options && options._merged ? options : new Base({
type: null,
tolerance: paper.project.options.hitTolerance || 2,
fill: !options,
stroke: !options,
segments: !options,
handles: false,
ends: false,
center: false,
bounds: false,
guides: false,
selected: false,
_merged: true
}, options);
}
}
});
var Segment = Base.extend({
_class: 'Segment',
initialize: function Segment(arg0, arg1, arg2, arg3, arg4, arg5) {
var count = arguments.length,
point, handleIn, handleOut;
if (count === 0) {
} else if (count === 1) {
if (arg0.point) {
point = arg0.point;
handleIn = arg0.handleIn;
handleOut = arg0.handleOut;
} else {
point = arg0;
}
} else if (count === 2 && typeof arg0 === 'number') {
point = arguments;
} else if (count <= 3) {
point = arg0;
handleIn = arg1;
handleOut = arg2;
} else {
point = arg0 !== undefined ? [ arg0, arg1 ] : null;
handleIn = arg2 !== undefined ? [ arg2, arg3 ] : null;
handleOut = arg4 !== undefined ? [ arg4, arg5 ] : null;
}
new SegmentPoint(point, this, '_point');
new SegmentPoint(handleIn, this, '_handleIn');
new SegmentPoint(handleOut, this, '_handleOut');
},
_serialize: function(options) {
return Base.serialize(this.isLinear() ? this._point
: [this._point, this._handleIn, this._handleOut], options, true);
},
_changed: function(point) {
if (!this._path)
return;
var curve = this._path._curves && this.getCurve(),
other;
if (curve) {
curve._changed();
if (other = (curve[point == this._point
|| point == this._handleIn && curve._segment1 == this
? 'getPrevious' : 'getNext']())) {
other._changed();
}
}
this._path._changed(5);
},
getPoint: function() {
return this._point;
},
setPoint: function(point) {
point = Point.read(arguments);
this._point.set(point.x, point.y);
},
getHandleIn: function() {
return this._handleIn;
},
setHandleIn: function(point) {
point = Point.read(arguments);
this._handleIn.set(point.x, point.y);
},
getHandleOut: function() {
return this._handleOut;
},
setHandleOut: function(point) {
point = Point.read(arguments);
this._handleOut.set(point.x, point.y);
},
isLinear: function() {
return this._handleIn.isZero() && this._handleOut.isZero();
},
setLinear: function() {
this._handleIn.set(0, 0);
this._handleOut.set(0, 0);
},
isColinear: function(segment) {
var next1 = this.getNext(),
next2 = segment.getNext();
return this._handleOut.isZero() && next1._handleIn.isZero()
&& segment._handleOut.isZero() && next2._handleIn.isZero()
&& next1._point.subtract(this._point).isColinear(
next2._point.subtract(segment._point));
},
isOrthogonal: function() {
var prev = this.getPrevious(),
next = this.getNext();
return prev._handleOut.isZero() && this._handleIn.isZero()
&& this._handleOut.isZero() && next._handleIn.isZero()
&& this._point.subtract(prev._point).isOrthogonal(
next._point.subtract(this._point));
},
isArc: function() {
var next = this.getNext(),
handle1 = this._handleOut,
handle2 = next._handleIn,
kappa = Numerical.KAPPA;
if (handle1.isOrthogonal(handle2)) {
var from = this._point,
to = next._point,
corner = new Line(from, handle1, true).intersect(
new Line(to, handle2, true), true);
return corner && Numerical.isZero(handle1.getLength() /
corner.subtract(from).getLength() - kappa)
&& Numerical.isZero(handle2.getLength() /
corner.subtract(to).getLength() - kappa);
}
return false;
},
_isSelected: function(point) {
var state = this._selectionState;
return point == this._point ? !!(state & 4)
: point == this._handleIn ? !!(state & 1)
: point == this._handleOut ? !!(state & 2)
: false;
},
_setSelected: function(point, selected) {
var path = this._path,
selected = !!selected,
state = this._selectionState || 0,
selection = [
!!(state & 4),
!!(state & 1),
!!(state & 2)
];
if (point === this._point) {
if (selected) {
selection[1] = selection[2] = false;
} else {
var previous = this.getPrevious(),
next = this.getNext();
selection[1] = previous && (previous._point.isSelected()
|| previous._handleOut.isSelected());
selection[2] = next && (next._point.isSelected()
|| next._handleIn.isSelected());
}
selection[0] = selected;
} else {
var index = point === this._handleIn ? 1 : 2;
if (selection[index] != selected) {
if (selected)
selection[0] = false;
selection[index] = selected;
}
}
this._selectionState = (selection[0] ? 4 : 0)
| (selection[1] ? 1 : 0)
| (selection[2] ? 2 : 0);
if (path && state != this._selectionState) {
path._updateSelection(this, state, this._selectionState);
path._changed(33);
}
},
isSelected: function() {
return this._isSelected(this._point);
},
setSelected: function(selected) {
this._setSelected(this._point, selected);
},
getIndex: function() {
return this._index !== undefined ? this._index : null;
},
getPath: function() {
return this._path || null;
},
getCurve: function() {
var path = this._path,
index = this._index;
if (path) {
if (!path._closed && index == path._segments.length - 1)
index--;
return path.getCurves()[index] || null;
}
return null;
},
getLocation: function() {
var curve = this.getCurve();
return curve ? new CurveLocation(curve, curve.getNext() ? 0 : 1) : null;
},
getNext: function() {
var segments = this._path && this._path._segments;
return segments && (segments[this._index + 1]
|| this._path._closed && segments[0]) || null;
},
getPrevious: function() {
var segments = this._path && this._path._segments;
return segments && (segments[this._index - 1]
|| this._path._closed && segments[segments.length - 1]) || null;
},
reverse: function() {
return new Segment(this._point, this._handleOut, this._handleIn);
},
remove: function() {
return this._path ? !!this._path.removeSegment(this._index) : false;
},
clone: function() {
return new Segment(this._point, this._handleIn, this._handleOut);
},
equals: function(segment) {
return segment === this || segment && this._class === segment._class
&& this._point.equals(segment._point)
&& this._handleIn.equals(segment._handleIn)
&& this._handleOut.equals(segment._handleOut)
|| false;
},
toString: function() {
var parts = [ 'point: ' + this._point ];
if (!this._handleIn.isZero())
parts.push('handleIn: ' + this._handleIn);
if (!this._handleOut.isZero())
parts.push('handleOut: ' + this._handleOut);
return '{ ' + parts.join(', ') + ' }';
},
_transformCoordinates: function(matrix, coords, change) {
var point = this._point,
handleIn = !change || !this._handleIn.isZero()
? this._handleIn : null,
handleOut = !change || !this._handleOut.isZero()
? this._handleOut : null,
x = point._x,
y = point._y,
i = 2;
coords[0] = x;
coords[1] = y;
if (handleIn) {
coords[i++] = handleIn._x + x;
coords[i++] = handleIn._y + y;
}
if (handleOut) {
coords[i++] = handleOut._x + x;
coords[i++] = handleOut._y + y;
}
if (matrix) {
matrix._transformCoordinates(coords, 0, coords, 0, i / 2);
x = coords[0];
y = coords[1];
if (change) {
point._x = x;
point._y = y;
i = 2;
if (handleIn) {
handleIn._x = coords[i++] - x;
handleIn._y = coords[i++] - y;
}
if (handleOut) {
handleOut._x = coords[i++] - x;
handleOut._y = coords[i++] - y;
}
} else {
if (!handleIn) {
coords[i++] = x;
coords[i++] = y;
}
if (!handleOut) {
coords[i++] = x;
coords[i++] = y;
}
}
}
return coords;
}
});
var SegmentPoint = Point.extend({
initialize: function SegmentPoint(point, owner, key) {
var x, y, selected;
if (!point) {
x = y = 0;
} else if ((x = point[0]) !== undefined) {
y = point[1];
} else {
if ((x = point.x) === undefined) {
point = Point.read(arguments);
x = point.x;
}
y = point.y;
selected = point.selected;
}
this._x = x;
this._y = y;
this._owner = owner;
owner[key] = this;
if (selected)
this.setSelected(true);
},
set: function(x, y) {
this._x = x;
this._y = y;
this._owner._changed(this);
return this;
},
_serialize: function(options) {
var f = options.formatter,
x = f.number(this._x),
y = f.number(this._y);
return this.isSelected()
? { x: x, y: y, selected: true }
: [x, y];
},
getX: function() {
return this._x;
},
setX: function(x) {
this._x = x;
this._owner._changed(this);
},
getY: function() {
return this._y;
},
setY: function(y) {
this._y = y;
this._owner._changed(this);
},
isZero: function() {
return Numerical.isZero(this._x) && Numerical.isZero(this._y);
},
setSelected: function(selected) {
this._owner._setSelected(this, selected);
},
isSelected: function() {
return this._owner._isSelected(this);
}
});
var Curve = Base.extend({
_class: 'Curve',
initialize: function Curve(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7) {
var count = arguments.length;
if (count === 3) {
this._path = arg0;
this._segment1 = arg1;
this._segment2 = arg2;
} else if (count === 0) {
this._segment1 = new Segment();
this._segment2 = new Segment();
} else if (count === 1) {
this._segment1 = new Segment(arg0.segment1);
this._segment2 = new Segment(arg0.segment2);
} else if (count === 2) {
this._segment1 = new Segment(arg0);
this._segment2 = new Segment(arg1);
} else {
var point1, handle1, handle2, point2;
if (count === 4) {
point1 = arg0;
handle1 = arg1;
handle2 = arg2;
point2 = arg3;
} else if (count === 8) {
point1 = [arg0, arg1];
point2 = [arg6, arg7];
handle1 = [arg2 - arg0, arg3 - arg1];
handle2 = [arg4 - arg6, arg5 - arg7];
}
this._segment1 = new Segment(point1, null, handle1);
this._segment2 = new Segment(point2, handle2, null);
}
},
_changed: function() {
delete this._length;
delete this._bounds;
},
getPoint1: function() {
return this._segment1._point;
},
setPoint1: function(point) {
point = Point.read(arguments);
this._segment1._point.set(point.x, point.y);
},
getPoint2: function() {
return this._segment2._point;
},
setPoint2: function(point) {
point = Point.read(arguments);
this._segment2._point.set(point.x, point.y);
},
getHandle1: function() {
return this._segment1._handleOut;
},
setHandle1: function(point) {
point = Point.read(arguments);
this._segment1._handleOut.set(point.x, point.y);
},
getHandle2: function() {
return this._segment2._handleIn;
},
setHandle2: function(point) {
point = Point.read(arguments);
this._segment2._handleIn.set(point.x, point.y);
},
getSegment1: function() {
return this._segment1;
},
getSegment2: function() {
return this._segment2;
},
getPath: function() {
return this._path;
},
getIndex: function() {
return this._segment1._index;
},
getNext: function() {
var curves = this._path && this._path._curves;
return curves && (curves[this._segment1._index + 1]
|| this._path._closed && curves[0]) || null;
},
getPrevious: function() {
var curves = this._path && this._path._curves;
return curves && (curves[this._segment1._index - 1]
|| this._path._closed && curves[curves.length - 1]) || null;
},
isSelected: function() {
return this.getHandle1().isSelected() && this.getHandle2().isSelected();
},
setSelected: function(selected) {
this.getHandle1().setSelected(selected);
this.getHandle2().setSelected(selected);
},
getValues: function() {
return Curve.getValues(this._segment1, this._segment2);
},
getPoints: function() {
var coords = this.getValues(),
points = [];
for (var i = 0; i < 8; i += 2)
points.push(new Point(coords[i], coords[i + 1]));
return points;
},
getLength: function() {
var from = arguments[0],
to = arguments[1],
fullLength = arguments.length === 0 || from === 0 && to === 1;
if (fullLength && this._length != null)
return this._length;
var length = Curve.getLength(this.getValues(), from, to);
if (fullLength)
this._length = length;
return length;
},
getArea: function() {
return Curve.getArea(this.getValues());
},
getPart: function(from, to) {
return new Curve(Curve.getPart(this.getValues(), from, to));
},
isLinear: function() {
return this._segment1._handleOut.isZero()
&& this._segment2._handleIn.isZero();
},
getIntersections: function(curve) {
return Curve.getIntersections(this.getValues(), curve.getValues(),
this, curve, []);
},
reverse: function() {
return new Curve(this._segment2.reverse(), this._segment1.reverse());
},
_getParameter: function(offset, isParameter) {
return isParameter
? offset
: offset && offset.curve === this
? offset.parameter
: offset === undefined && isParameter === undefined
? 0.5
: this.getParameterAt(offset, 0);
},
divide: function(offset, isParameter) {
var parameter = this._getParameter(offset, isParameter),
tolerance = 0.00001,
res = null;
if (parameter > tolerance && parameter < 1 - tolerance) {
var parts = Curve.subdivide(this.getValues(), parameter),
isLinear = this.isLinear(),
left = parts[0],
right = parts[1];
if (!isLinear) {
this._segment1._handleOut.set(left[2] - left[0],
left[3] - left[1]);
this._segment2._handleIn.set(right[4] - right[6],
right[5] - right[7]);
}
var x = left[6], y = left[7],
segment = new Segment(new Point(x, y),
!isLinear && new Point(left[4] - x, left[5] - y),
!isLinear && new Point(right[2] - x, right[3] - y));
if (this._path) {
if (this._segment1._index > 0 && this._segment2._index === 0) {
this._path.add(segment);
} else {
this._path.insert(this._segment2._index, segment);
}
res = this;
} else {
var end = this._segment2;
this._segment2 = segment;
res = new Curve(segment, end);
}
}
return res;
},
split: function(offset, isParameter) {
return this._path
? this._path.split(this._segment1._index,
this._getParameter(offset, isParameter))
: null;
},
clone: function() {
return new Curve(this._segment1, this._segment2);
},
toString: function() {
var parts = [ 'point1: ' + this._segment1._point ];
if (!this._segment1._handleOut.isZero())
parts.push('handle1: ' + this._segment1._handleOut);
if (!this._segment2._handleIn.isZero())
parts.push('handle2: ' + this._segment2._handleIn);
parts.push('point2: ' + this._segment2._point);
return '{ ' + parts.join(', ') + ' }';
},
statics: {
getValues: function(segment1, segment2) {
var p1 = segment1._point,
h1 = segment1._handleOut,
h2 = segment2._handleIn,
p2 = segment2._point;
return [
p1._x, p1._y,
p1._x + h1._x, p1._y + h1._y,
p2._x + h2._x, p2._y + h2._y,
p2._x, p2._y
];
},
evaluate: function(v, t, type) {
var p1x = v[0], p1y = v[1],
c1x = v[2], c1y = v[3],
c2x = v[4], c2y = v[5],
p2x = v[6], p2y = v[7],
x, y;
if (type === 0 && (t === 0 || t === 1)) {
x = t === 0 ? p1x : p2x;
y = t === 0 ? p1y : p2y;
} else {
var cx = 3 * (c1x - p1x),
bx = 3 * (c2x - c1x) - cx,
ax = p2x - p1x - cx - bx,
cy = 3 * (c1y - p1y),
by = 3 * (c2y - c1y) - cy,
ay = p2y - p1y - cy - by;
if (type === 0) {
x = ((ax * t + bx) * t + cx) * t + p1x;
y = ((ay * t + by) * t + cy) * t + p1y;
} else {
var tolerance = 0.00001;
if (t < tolerance && c1x === p1x && c1y === p1y
|| t > 1 - tolerance && c2x === p2x && c2y === p2y) {
x = p2x - p1x;
y = p2y - p1y;
} else {
x = (3 * ax * t + 2 * bx) * t + cx;
y = (3 * ay * t + 2 * by) * t + cy;
}
if (type === 3) {
var x2 = 6 * ax * t + 2 * bx,
y2 = 6 * ay * t + 2 * by;
return (x * y2 - y * x2) / Math.pow(x * x + y * y, 3 / 2);
}
}
}
return type == 2 ? new Point(y, -x) : new Point(x, y);
},
subdivide: function(v, t) {
var p1x = v[0], p1y = v[1],
c1x = v[2], c1y = v[3],
c2x = v[4], c2y = v[5],
p2x = v[6], p2y = v[7];
if (t === undefined)
t = 0.5;
var u = 1 - t,
p3x = u * p1x + t * c1x, p3y = u * p1y + t * c1y,
p4x = u * c1x + t * c2x, p4y = u * c1y + t * c2y,
p5x = u * c2x + t * p2x, p5y = u * c2y + t * p2y,
p6x = u * p3x + t * p4x, p6y = u * p3y + t * p4y,
p7x = u * p4x + t * p5x, p7y = u * p4y + t * p5y,
p8x = u * p6x + t * p7x, p8y = u * p6y + t * p7y;
return [
[p1x, p1y, p3x, p3y, p6x, p6y, p8x, p8y],
[p8x, p8y, p7x, p7y, p5x, p5y, p2x, p2y]
];
},
solveCubic: function (v, coord, val, roots, min, max) {
var p1 = v[coord],
c1 = v[coord + 2],
c2 = v[coord + 4],
p2 = v[coord + 6],
c = 3 * (c1 - p1),
b = 3 * (c2 - c1) - c,
a = p2 - p1 - c - b;
return Numerical.solveCubic(a, b, c, p1 - val, roots, min, max);
},
getParameterOf: function(v, x, y) {
if (Math.abs(v[0] - x) < 0.00001
&& Math.abs(v[1] - y) < 0.00001)
return 0;
if (Math.abs(v[6] - x) < 0.00001
&& Math.abs(v[7] - y) < 0.00001)
return 1;
var txs = [],
tys = [],
sx = Curve.solveCubic(v, 0, x, txs),
sy = Curve.solveCubic(v, 1, y, tys),
tx, ty;
for (var cx = 0; sx == -1 || cx < sx;) {
if (sx == -1 || (tx = txs[cx++]) >= 0 && tx <= 1) {
for (var cy = 0; sy == -1 || cy < sy;) {
if (sy == -1 || (ty = tys[cy++]) >= 0 && ty <= 1) {
if (sx == -1) tx = ty;
else if (sy == -1) ty = tx;
if (Math.abs(tx - ty) < 0.00001)
return (tx + ty) * 0.5;
}
}
if (sx == -1)
break;
}
}
return null;
},
getPart: function(v, from, to) {
if (from > 0)
v = Curve.subdivide(v, from)[1];
if (to < 1)
v = Curve.subdivide(v, (to - from) / (1 - from))[0];
return v;
},
isLinear: function(v) {
var isZero = Numerical.isZero;
return isZero(v[0] - v[2]) && isZero(v[1] - v[3])
&& isZero(v[4] - v[6]) && isZero(v[5] - v[7]);
},
isFlatEnough: function(v, tolerance) {
var p1x = v[0], p1y = v[1],
c1x = v[2], c1y = v[3],
c2x = v[4], c2y = v[5],
p2x = v[6], p2y = v[7],
ux = 3 * c1x - 2 * p1x - p2x,
uy = 3 * c1y - 2 * p1y - p2y,
vx = 3 * c2x - 2 * p2x - p1x,
vy = 3 * c2y - 2 * p2y - p1y;
return Math.max(ux * ux, vx * vx) + Math.max(uy * uy, vy * vy)
< 10 * tolerance * tolerance;
},
getArea: function(v) {
var p1x = v[0], p1y = v[1],
c1x = v[2], c1y = v[3],
c2x = v[4], c2y = v[5],
p2x = v[6], p2y = v[7];
return ( 3.0 * c1y * p1x - 1.5 * c1y * c2x
- 1.5 * c1y * p2x - 3.0 * p1y * c1x
- 1.5 * p1y * c2x - 0.5 * p1y * p2x
+ 1.5 * c2y * p1x + 1.5 * c2y * c1x
- 3.0 * c2y * p2x + 0.5 * p2y * p1x
+ 1.5 * p2y * c1x + 3.0 * p2y * c2x) / 10;
},
getBounds: function(v) {
var min = v.slice(0, 2),
max = min.slice(),
roots = [0, 0];
for (var i = 0; i < 2; i++)
Curve._addBounds(v[i], v[i + 2], v[i + 4], v[i + 6],
i, 0, min, max, roots);
return new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]);
},
_addBounds: function(v0, v1, v2, v3, coord, padding, min, max, roots) {
function add(value, padding) {
var left = value - padding,
right = value + padding;
if (left < min[coord])
min[coord] = left;
if (right > max[coord])
max[coord] = right;
}
var a = 3 * (v1 - v2) - v0 + v3,
b = 2 * (v0 + v2) - 4 * v1,
c = v1 - v0,
count = Numerical.solveQuadratic(a, b, c, roots),
tMin = 0.00001,
tMax = 1 - tMin;
add(v3, 0);
for (var i = 0; i < count; i++) {
var t = roots[i],
u = 1 - t;
if (tMin < t && t < tMax)
add(u * u * u * v0
+ 3 * u * u * t * v1
+ 3 * u * t * t * v2
+ t * t * t * v3,
padding);
}
},
_getWinding: function(v, prev, x, y, roots1, roots2) {
var tolerance = 0.00001,
abs = Math.abs;
function getDirection(v) {
var y0 = v[1],
y1 = v[7],
dir = y0 > y1 ? -1 : 1;
return dir === 1 && (y < y0 || y > y1)
|| dir === -1 && (y < y1 || y > y0)
? 0
: dir;
}
if (Curve.isLinear(v)) {
var dir = getDirection(v);
if (!dir)
return 0;
var cross = (v[6] - v[0]) * (y - v[1]) - (v[7] - v[1]) * (x - v[0]);
return (cross < -tolerance ? -1 : 1) == dir ? 0 : dir;
}
var y0 = v[1],
y1 = v[3],
y2 = v[5],
y3 = v[7];
var a = 3 * (y1 - y2) - y0 + y3,
b = 2 * (y0 + y2) - 4 * y1,
c = y1 - y0;
var count = Numerical.solveQuadratic(a, b, c, roots1, tolerance,
1 - tolerance),
part,
rest = v,
t1 = roots1[0],
winding = 0;
for (var i = 0; i <= count; i++) {
if (i === count) {
part = rest;
} else {
var curves = Curve.subdivide(rest, t1);
part = curves[0];
rest = curves[1];
t1 = roots1[i];
t1 = (roots1[i + 1] - t1) / (1 - t1);
}
if (i > 0)
part[3] = part[1];
if (i < count)
part[5] = rest[1];
var dir = getDirection(part);
if (!dir)
continue;
var t2,
px;
if (Curve.solveCubic(part, 1, y, roots2, -tolerance, 1 + -tolerance)
=== 1) {
t2 = roots2[0];
px = Curve.evaluate(part, t2, 0).x;
} else {
var mid = (part[1] + part[7]) / 2;
t2 = y < mid && dir > 0 ? 0 : 1;
if (t2 === 1 && y == part[7])
continue;
px = t2 === 0 ? part[0] : part[6];
}
var slope = Curve.evaluate(part, t2, 1).y,
stationary = abs(slope) < tolerance || t2 < tolerance
&& Curve.evaluate(prev, 1, 1).y * slope < 0;
if (x >= px + (stationary ? -tolerance : tolerance * dir)
&& !(stationary && (abs(t2) < tolerance
&& abs(x - part[0]) > tolerance
|| abs(t2 - 1) < tolerance
&& abs(x - part[6]) > tolerance))) {
winding += stationary && abs(t2 - (dir > 0 ? 1 : 0)) < tolerance
? -dir : dir;
}
prev = part;
}
return winding;
}
}}, Base.each(['getBounds', 'getStrokeBounds', 'getHandleBounds', 'getRoughBounds'],
function(name) {
this[name] = function() {
if (!this._bounds)
this._bounds = {};
var bounds = this._bounds[name];
if (!bounds) {
bounds = this._bounds[name] = Path[name]([this._segment1,
this._segment2], false, this._path.getStyle());
}
return bounds.clone();
};
},
{
}), Base.each(['getPoint', 'getTangent', 'getNormal', 'getCurvature'],
function(name, index) {
this[name + 'At'] = function(offset, isParameter) {
var values = this.getValues();
return Curve.evaluate(values, isParameter
? offset : Curve.getParameterAt(values, offset, 0), index);
};
this[name] = function(parameter) {
return Curve.evaluate(this.getValues(), parameter, index);
};
},
{
getParameterAt: function(offset, start) {
return Curve.getParameterAt(this.getValues(), offset,
start !== undefined ? start : offset < 0 ? 1 : 0);
},
getParameterOf: function(point) {
point = Point.read(arguments);
return Curve.getParameterOf(this.getValues(), point.x, point.y);
},
getLocationAt: function(offset, isParameter) {
if (!isParameter)
offset = this.getParameterAt(offset);
return new CurveLocation(this, offset);
},
getLocationOf: function(point) {
point = Point.read(arguments);
var t = this.getParameterOf(point);
return t != null ? new CurveLocation(this, t) : null;
},
getNearestLocation: function(point) {
point = Point.read(arguments);
var values = this.getValues(),
count = 100,
tolerance = Numerical.TOLERANCE,
minDist = Infinity,
minT = 0;
function refine(t) {
if (t >= 0 && t <= 1) {
var dist = point.getDistance(
Curve.evaluate(values, t, 0), true);
if (dist < minDist) {
minDist = dist;
minT = t;
return true;
}
}
}
for (var i = 0; i <= count; i++)
refine(i / count);
var step = 1 / (count * 2);
while (step > tolerance) {
if (!refine(minT - step) && !refine(minT + step))
step /= 2;
}
var pt = Curve.evaluate(values, minT, 0);
return new CurveLocation(this, minT, pt, null, null, null,
point.getDistance(pt));
},
getNearestPoint: function(point) {
point = Point.read(arguments);
return this.getNearestLocation(point).getPoint();
}
}),
new function() {
function getLengthIntegrand(v) {
var p1x = v[0], p1y = v[1],
c1x = v[2], c1y = v[3],
c2x = v[4], c2y = v[5],
p2x = v[6], p2y = v[7],
ax = 9 * (c1x - c2x) + 3 * (p2x - p1x),
bx = 6 * (p1x + c2x) - 12 * c1x,
cx = 3 * (c1x - p1x),
ay = 9 * (c1y - c2y) + 3 * (p2y - p1y),
by = 6 * (p1y + c2y) - 12 * c1y,
cy = 3 * (c1y - p1y);
return function(t) {
var dx = (ax * t + bx) * t + cx,
dy = (ay * t + by) * t + cy;
return Math.sqrt(dx * dx + dy * dy);
};
}
function getIterations(a, b) {
return Math.max(2, Math.min(16, Math.ceil(Math.abs(b - a) * 32)));
}
return {
statics: true,
getLength: function(v, a, b) {
if (a === undefined)
a = 0;
if (b === undefined)
b = 1;
var isZero = Numerical.isZero;
if (isZero(v[0] - v[2]) && isZero(v[1] - v[3])
&& isZero(v[6] - v[4]) && isZero(v[7] - v[5])) {
var dx = v[6] - v[0],
dy = v[7] - v[1];
return (b - a) * Math.sqrt(dx * dx + dy * dy);
}
var ds = getLengthIntegrand(v);
return Numerical.integrate(ds, a, b, getIterations(a, b));
},
getParameterAt: function(v, offset, start) {
if (offset === 0)
return start;
var forward = offset > 0,
a = forward ? start : 0,
b = forward ? 1 : start,
offset = Math.abs(offset),
ds = getLengthIntegrand(v),
rangeLength = Numerical.integrate(ds, a, b,
getIterations(a, b));
if (offset >= rangeLength)
return forward ? b : a;
var guess = offset / rangeLength,
length = 0;
function f(t) {
var count = getIterations(start, t);
length += start < t
? Numerical.integrate(ds, start, t, count)
: -Numerical.integrate(ds, t, start, count);
start = t;
return length - offset;
}
return Numerical.findRoot(f, ds,
forward ? a + guess : b - guess,
a, b, 16, 0.00001);
}
};
}, new function() {
function addLocation(locations, curve1, t1, point1, curve2, t2, point2) {
var first = locations[0],
last = locations[locations.length - 1];
if ((!first || !point1.isClose(first._point, Numerical.EPSILON))
&& (!last || !point1.isClose(last._point, Numerical.EPSILON)))
locations.push(
new CurveLocation(curve1, t1, point1, curve2, t2, point2));
}
function addCurveIntersections(v1, v2, curve1, curve2, locations,
range1, range2, recursion) {
recursion = (recursion || 0) + 1;
if (recursion > 20)
return;
range1 = range1 || [ 0, 1 ];
range2 = range2 || [ 0, 1 ];
var part1 = Curve.getPart(v1, range1[0], range1[1]),
part2 = Curve.getPart(v2, range2[0], range2[1]),
iteration = 0;
while (iteration++ < 20) {
var range,
intersects1 = clipFatLine(part1, part2, range = range2.slice()),
intersects2 = 0;
if (intersects1 === 0)
break;
if (intersects1 > 0) {
range2 = range;
part2 = Curve.getPart(v2, range2[0], range2[1]);
intersects2 = clipFatLine(part2, part1, range = range1.slice());
if (intersects2 === 0)
break;
if (intersects1 > 0) {
range1 = range;
part1 = Curve.getPart(v1, range1[0], range1[1]);
}
}
if (intersects1 < 0 || intersects2 < 0) {
if (range1[1] - range1[0] > range2[1] - range2[0]) {
var t = (range1[0] + range1[1]) / 2;
addCurveIntersections(v1, v2, curve1, curve2, locations,
[ range1[0], t ], range2, recursion);
addCurveIntersections(v1, v2, curve1, curve2, locations,
[ t, range1[1] ], range2, recursion);
break;
} else {
var t = (range2[0] + range2[1]) / 2;
addCurveIntersections(v1, v2, curve1, curve2, locations,
range1, [ range2[0], t ], recursion);
addCurveIntersections(v1, v2, curve1, curve2, locations,
range1, [ t, range2[1] ], recursion);
break;
}
}
if (Math.abs(range1[1] - range1[0]) <= 0.00001 &&
Math.abs(range2[1] - range2[0]) <= 0.00001) {
var t1 = (range1[0] + range1[1]) / 2,
t2 = (range2[0] + range2[1]) / 2;
addLocation(locations,
curve1, t1, Curve.evaluate(v1, t1, 0),
curve2, t2, Curve.evaluate(v2, t2, 0));
break;
}
}
}
function clipFatLine(v1, v2, range2) {
var p0x = v1[0], p0y = v1[1], p1x = v1[2], p1y = v1[3],
p2x = v1[4], p2y = v1[5], p3x = v1[6], p3y = v1[7],
q0x = v2[0], q0y = v2[1], q1x = v2[2], q1y = v2[3],
q2x = v2[4], q2y = v2[5], q3x = v2[6], q3y = v2[7],
getSignedDistance = Line.getSignedDistance,
d1 = getSignedDistance(p0x, p0y, p3x, p3y, p1x, p1y) || 0,
d2 = getSignedDistance(p0x, p0y, p3x, p3y, p2x, p2y) || 0,
factor = d1 * d2 > 0 ? 3 / 4 : 4 / 9,
dmin = factor * Math.min(0, d1, d2),
dmax = factor * Math.max(0, d1, d2),
dq0 = getSignedDistance(p0x, p0y, p3x, p3y, q0x, q0y),
dq1 = getSignedDistance(p0x, p0y, p3x, p3y, q1x, q1y),
dq2 = getSignedDistance(p0x, p0y, p3x, p3y, q2x, q2y),
dq3 = getSignedDistance(p0x, p0y, p3x, p3y, q3x, q3y);
if (dmin > Math.max(dq0, dq1, dq2, dq3)
|| dmax < Math.min(dq0, dq1, dq2, dq3))
return 0;
var hull = getConvexHull(dq0, dq1, dq2, dq3),
swap;
if (dq3 < dq0) {
swap = dmin;
dmin = dmax;
dmax = swap;
}
var tmaxdmin = -Infinity,
tmin = Infinity,
tmax = -Infinity;
for (var i = 0, l = hull.length; i < l; i++) {
var p1 = hull[i],
p2 = hull[(i + 1) % l];
if (p2[1] < p1[1]) {
swap = p2;
p2 = p1;
p1 = swap;
}
var x1 = p1[0],
y1 = p1[1],
x2 = p2[0],
y2 = p2[1];
var inv = (y2 - y1) / (x2 - x1);
if (dmin >= y1 && dmin <= y2) {
var ixdx = x1 + (dmin - y1) / inv;
if (ixdx < tmin)
tmin = ixdx;
if (ixdx > tmaxdmin)
tmaxdmin = ixdx;
}
if (dmax >= y1 && dmax <= y2) {
var ixdx = x1 + (dmax - y1) / inv;
if (ixdx > tmax)
tmax = ixdx;
if (ixdx < tmin)
tmin = 0;
}
}
if (tmin !== Infinity && tmax !== -Infinity) {
var min = Math.min(dmin, dmax),
max = Math.max(dmin, dmax);
if (dq3 > min && dq3 < max)
tmax = 1;
if (dq0 > min && dq0 < max)
tmin = 0;
if (tmaxdmin > tmax)
tmax = 1;
var v2tmin = range2[0],
tdiff = range2[1] - v2tmin;
range2[0] = v2tmin + tmin * tdiff;
range2[1] = v2tmin + tmax * tdiff;
if ((tdiff - (range2[1] - range2[0])) / tdiff >= 0.2)
return 1;
}
if (Curve.getBounds(v1).touches(Curve.getBounds(v2)))
return -1;
return 0;
}
function getConvexHull(dq0, dq1, dq2, dq3) {
var p0 = [ 0, dq0 ],
p1 = [ 1 / 3, dq1 ],
p2 = [ 2 / 3, dq2 ],
p3 = [ 1, dq3 ],
getSignedDistance = Line.getSignedDistance,
dist1 = getSignedDistance(0, dq0, 1, dq3, 1 / 3, dq1),
dist2 = getSignedDistance(0, dq0, 1, dq3, 2 / 3, dq2);
if (dist1 * dist2 < 0) {
return [ p0, p1, p3, p2 ];
}
var pmax, cross;
if (Math.abs(dist1) > Math.abs(dist2)) {
pmax = p1;
cross = (dq3 - dq2 - (dq3 - dq0) / 3)
* (2 * (dq3 - dq2) - dq3 + dq1) / 3;
} else {
pmax = p2;
cross = (dq1 - dq0 + (dq0 - dq3) / 3)
* (-2 * (dq0 - dq1) + dq0 - dq2) / 3;
}
return cross < 0
? [ p0, pmax, p3 ]
: [ p0, p1, p2, p3 ];
}
function addCurveLineIntersections(v1, v2, curve1, curve2, locations) {
var flip = Curve.isLinear(v1),
vc = flip ? v2 : v1,
vl = flip ? v1 : v2,
lx1 = vl[0], ly1 = vl[1],
lx2 = vl[6], ly2 = vl[7],
ldx = lx2 - lx1,
ldy = ly2 - ly1,
angle = Math.atan2(-ldy, ldx),
sin = Math.sin(angle),
cos = Math.cos(angle),
rlx2 = ldx * cos - ldy * sin,
rvl = [0, 0, 0, 0, rlx2, 0, rlx2, 0],
rvc = [];
for(var i = 0; i < 8; i += 2) {
var x = vc[i] - lx1,
y = vc[i + 1] - ly1;
rvc.push(
x * cos - y * sin,
y * cos + x * sin);
}
var roots = [],
count = Curve.solveCubic(rvc, 1, 0, roots, 0, 1);
for (var i = 0; i < count; i++) {
var tc = roots[i],
x = Curve.evaluate(rvc, tc, 0).x;
if (x >= 0 && x <= rlx2) {
var tl = Curve.getParameterOf(rvl, x, 0),
t1 = flip ? tl : tc,
t2 = flip ? tc : tl;
addLocation(locations,
curve1, t1, Curve.evaluate(v1, t1, 0),
curve2, t2, Curve.evaluate(v2, t2, 0));
}
}
}
function addLineIntersection(v1, v2, curve1, curve2, locations) {
var point = Line.intersect(
v1[0], v1[1], v1[6], v1[7],
v2[0], v2[1], v2[6], v2[7]);
if (point)
addLocation(locations, curve1, null, point, curve2);
}
return { statics: {
getIntersections: function(v1, v2, curve1, curve2, locations) {
var linear1 = Curve.isLinear(v1),
linear2 = Curve.isLinear(v2),
c1p1 = curve1.getPoint1(),
c1p2 = curve1.getPoint2(),
c2p1 = curve2.getPoint1(),
c2p2 = curve2.getPoint2(),
tolerance = 0.00001;
if (c1p1.isClose(c2p1, tolerance))
addLocation(locations, curve1, 0, c1p1, curve2, 0, c1p1);
if (c1p1.isClose(c2p2, tolerance))
addLocation(locations, curve1, 0, c1p1, curve2, 1, c1p1);
(linear1 && linear2
? addLineIntersection
: linear1 || linear2
? addCurveLineIntersections
: addCurveIntersections)(v1, v2, curve1, curve2, locations);
if (c1p2.isClose(c2p1, tolerance))
addLocation(locations, curve1, 1, c1p2, curve2, 0, c1p2);
if (c1p2.isClose(c2p2, tolerance))
addLocation(locations, curve1, 1, c1p2, curve2, 1, c1p2);
return locations;
}
}};
});
var CurveLocation = Base.extend({
_class: 'CurveLocation',
initialize: function CurveLocation(curve, parameter, point, _curve2,
_parameter2, _point2, _distance) {
this._id = CurveLocation._id = (CurveLocation._id || 0) + 1;
this._curve = curve;
this._segment1 = curve._segment1;
this._segment2 = curve._segment2;
this._parameter = parameter;
this._point = point;
this._curve2 = _curve2;
this._parameter2 = _parameter2;
this._point2 = _point2;
this._distance = _distance;
},
getSegment: function() {
if (!this._segment) {
var curve = this.getCurve(),
parameter = this.getParameter();
if (parameter === 1) {
this._segment = curve._segment2;
} else if (parameter === 0 || arguments[0]) {
this._segment = curve._segment1;
} else if (parameter == null) {
return null;
} else {
this._segment = curve.getLength(0, parameter)
< curve.getLength(parameter, 1)
? curve._segment1
: curve._segment2;
}
}
return this._segment;
},
getCurve: function() {
if (!this._curve || arguments[0]) {
this._curve = this._segment1.getCurve();
if (this._curve.getParameterOf(this._point) == null)
this._curve = this._segment2.getPrevious().getCurve();
}
return this._curve;
},
getIntersection: function() {
var intersection = this._intersection;
if (!intersection && this._curve2) {
var param = this._parameter2;
this._intersection = intersection = new CurveLocation(
this._curve2, param, this._point2 || this._point, this);
intersection._intersection = this;
}
return intersection;
},
getPath: function() {
var curve = this.getCurve();
return curve && curve._path;
},
getIndex: function() {
var curve = this.getCurve();
return curve && curve.getIndex();
},
getOffset: function() {
var path = this.getPath();
return path && path._getOffset(this);
},
getCurveOffset: function() {
var curve = this.getCurve(),
parameter = this.getParameter();
return parameter != null && curve && curve.getLength(0, parameter);
},
getParameter: function() {
if ((this._parameter == null || arguments[0]) && this._point) {
var curve = this.getCurve(arguments[0] && this._point);
this._parameter = curve && curve.getParameterOf(this._point);
}
return this._parameter;
},
getPoint: function() {
if ((!this._point || arguments[0]) && this._parameter != null) {
var curve = this.getCurve();
this._point = curve && curve.getPointAt(this._parameter, true);
}
return this._point;
},
getTangent: function() {
var parameter = this.getParameter(),
curve = this.getCurve();
return parameter != null && curve && curve.getTangentAt(parameter, true);
},
getNormal: function() {
var parameter = this.getParameter(),
curve = this.getCurve();
return parameter != null && curve && curve.getNormalAt(parameter, true);
},
getDistance: function() {
return this._distance;
},
divide: function() {
var curve = this.getCurve(true);
return curve && curve.divide(this.getParameter(true), true);
},
split: function() {
var curve = this.getCurve(true);
return curve && curve.split(this.getParameter(true), true);
},
toString: function() {
var parts = [],
point = this.getPoint(),
f = Formatter.instance;
if (point)
parts.push('point: ' + point);
var index = this.getIndex();
if (index != null)
parts.push('index: ' + index);
var parameter = this.getParameter();
if (parameter != null)
parts.push('parameter: ' + f.number(parameter));
if (this._distance != null)
parts.push('distance: ' + f.number(this._distance));
return '{ ' + parts.join(', ') + ' }';
}
});
var PathItem = Item.extend({
_class: 'PathItem',
initialize: function PathItem() {
},
getIntersections: function(path) {
if (!this.getBounds().touches(path.getBounds()))
return [];
var locations = [],
curves1 = this.getCurves(),
curves2 = path.getCurves(),
length2 = curves2.length,
values2 = [];
for (var i = 0; i < length2; i++)
values2[i] = curves2[i].getValues();
for (var i = 0, l = curves1.length; i < l; i++) {
var curve1 = curves1[i],
values1 = curve1.getValues();
for (var j = 0; j < length2; j++)
Curve.getIntersections(values1, values2[j], curve1, curves2[j],
locations);
}
return locations;
},
setPathData: function(data) {
var parts = data.match(/[mlhvcsqtaz][^mlhvcsqtaz]*/ig),
coords,
relative = false,
control,
current = new Point();
function getCoord(index, coord, isCurrent) {
var val = parseFloat(coords[index]);
if (relative)
val += current[coord];
if (isCurrent)
current[coord] = val;
return val;
}
function getPoint(index, isCurrent) {
return new Point(
getCoord(index, 'x', isCurrent),
getCoord(index + 1, 'y', isCurrent)
);
}
this.clear();
for (var i = 0, l = parts.length; i < l; i++) {
var part = parts[i],
cmd = part[0],
lower = cmd.toLowerCase();
coords = part.match(/[+-]?(?:\d*\.\d+|\d+\.?)(?:[eE][+-]?\d+)?/g);
var length = coords && coords.length;
relative = cmd === lower;
switch (lower) {
case 'm':
case 'l':
for (var j = 0; j < length; j += 2)
this[j === 0 && lower === 'm' ? 'moveTo' : 'lineTo'](
getPoint(j, true));
control = current;
break;
case 'h':
case 'v':
var coord = lower == 'h' ? 'x' : 'y';
for (var j = 0; j < length; j++) {
getCoord(j, coord, true);
this.lineTo(current);
}
control = current;
break;
case 'c':
for (var j = 0; j < length; j += 6) {
this.cubicCurveTo(
getPoint(j),
control = getPoint(j + 2),
getPoint(j + 4, true));
}
break;
case 's':
for (var j = 0; j < length; j += 4) {
this.cubicCurveTo(
current.multiply(2).subtract(control),
control = getPoint(j),
getPoint(j + 2, true));
}
break;
case 'q':
for (var j = 0; j < length; j += 4) {
this.quadraticCurveTo(
control = getPoint(j),
getPoint(j + 2, true));
}
break;
case 't':
for (var j = 0; j < length; j += 2) {
this.quadraticCurveTo(
control = current.multiply(2).subtract(control),
getPoint(j, true));
}
break;
case 'a':
break;
case 'z':
this.closePath();
break;
}
}
},
_canComposite: function() {
return !(this.hasFill() && this.hasStroke());
},
_contains: function(point) {
var winding = this._getWinding(point);
return !!(this.getWindingRule() === 'evenodd' ? winding & 1 : winding);
}
});
var Path = PathItem.extend({
_class: 'Path',
_serializeFields: {
segments: [],
closed: false
},
initialize: function Path(arg) {
this._closed = false;
this._segments = [];
var segments = Array.isArray(arg)
? typeof arg[0] === 'object'
? arg
: arguments
: arg && (arg.point !== undefined && arg.size === undefined
|| arg.x !== undefined)
? arguments
: null;
this.setSegments(segments || []);
this._initialize(!segments && arg);
},
_equals: function(item) {
return Base.equals(this._segments, item._segments);
},
clone: function(insert) {
var copy = this._clone(new Path({
segments: this._segments,
insert: false
}), insert);
copy._closed = this._closed;
if (this._clockwise !== undefined)
copy._clockwise = this._clockwise;
return copy;
},
_changed: function _changed(flags) {
_changed.base.call(this, flags);
if (flags & 4) {
delete this._length;
delete this._clockwise;
if (this._curves) {
for (var i = 0, l = this._curves.length; i < l; i++)
this._curves[i]._changed(5);
}
} else if (flags & 8) {
delete this._bounds;
}
},
getSegments: function() {
return this._segments;
},
setSegments: function(segments) {
var fullySelected = this.isFullySelected();
this._segments.length = 0;
this._selectedSegmentState = 0;
delete this._curves;
this._add(Segment.readAll(segments));
if (fullySelected)
this.setFullySelected(true);
},
getFirstSegment: function() {
return this._segments[0];
},
getLastSegment: function() {
return this._segments[this._segments.length - 1];
},
getCurves: function() {
var curves = this._curves,
segments = this._segments;
if (!curves) {
var length = this._countCurves();
curves = this._curves = new Array(length);
for (var i = 0; i < length; i++)
curves[i] = new Curve(this, segments[i],
segments[i + 1] || segments[0]);
}
return curves;
},
getFirstCurve: function() {
return this.getCurves()[0];
},
getLastCurve: function() {
var curves = this.getCurves();
return curves[curves.length - 1];
},
getPathData: function() {
var segments = this._segments,
precision = arguments[0],
f = Formatter.instance,
parts = [];
function addCurve(seg1, seg2, skipLine) {
var point1 = seg1._point,
point2 = seg2._point,
handle1 = seg1._handleOut,
handle2 = seg2._handleIn;
if (handle1.isZero() && handle2.isZero()) {
if (!skipLine) {
parts.push('L' + f.point(point2, precision));
}
} else {
var end = point2.subtract(point1);
parts.push('c' + f.point(handle1, precision)
+ ' ' + f.point(end.add(handle2), precision)
+ ' ' + f.point(end, precision));
}
}
if (segments.length === 0)
return '';
parts.push('M' + f.point(segments[0]._point));
for (var i = 0, l = segments.length - 1; i < l; i++)
addCurve(segments[i], segments[i + 1], false);
if (this._closed) {
addCurve(segments[segments.length - 1], segments[0], true);
parts.push('z');
}
return parts.join('');
},
isClosed: function() {
return this._closed;
},
setClosed: function(closed) {
if (this._closed != (closed = !!closed)) {
this._closed = closed;
if (this._curves) {
var length = this._curves.length = this._countCurves();
if (closed)
this._curves[length - 1] = new Curve(this,
this._segments[length - 1], this._segments[0]);
}
this._changed(5);
}
},
isEmpty: function() {
return this._segments.length === 0;
},
isPolygon: function() {
for (var i = 0, l = this._segments.length; i < l; i++) {
if (!this._segments[i].isLinear())
return false;
}
return true;
},
_applyMatrix: function(matrix) {
var coords = new Array(6);
for (var i = 0, l = this._segments.length; i < l; i++)
this._segments[i]._transformCoordinates(matrix, coords, true);
return true;
},
_add: function(segs, index) {
var segments = this._segments,
curves = this._curves,
amount = segs.length,
append = index == null,
index = append ? segments.length : index;
for (var i = 0; i < amount; i++) {
var segment = segs[i];
if (segment._path)
segment = segs[i] = segment.clone();
segment._path = this;
segment._index = index + i;
if (segment._selectionState)
this._updateSelection(segment, 0, segment._selectionState);
}
if (append) {
segments.push.apply(segments, segs);
} else {
segments.splice.apply(segments, [index, 0].concat(segs));
for (var i = index + amount, l = segments.length; i < l; i++)
segments[i]._index = i;
}
if (curves || segs._curves) {
if (!curves)
curves = this._curves = [];
var from = index > 0 ? index - 1 : index,
start = from,
to = Math.min(from + amount, this._countCurves());
if (segs._curves) {
curves.splice.apply(curves, [from, 0].concat(segs._curves));
start += segs._curves.length;
}
for (var i = start; i < to; i++)
curves.splice(i, 0, new Curve(this, null, null));
this._adjustCurves(from, to);
}
this._changed(5);
return segs;
},
_adjustCurves: function(from, to) {
var segments = this._segments,
curves = this._curves,
curve;
for (var i = from; i < to; i++) {
curve = curves[i];
curve._path = this;
curve._segment1 = segments[i];
curve._segment2 = segments[i + 1] || segments[0];
}
if (curve = curves[this._closed && from === 0 ? segments.length - 1
: from - 1])
curve._segment2 = segments[from] || segments[0];
if (curve = curves[to])
curve._segment1 = segments[to];
},
_countCurves: function() {
var length = this._segments.length;
return !this._closed && length > 0 ? length - 1 : length;
},
add: function(segment1 ) {
return arguments.length > 1 && typeof segment1 !== 'number'
? this._add(Segment.readAll(arguments))
: this._add([ Segment.read(arguments) ])[0];
},
insert: function(index, segment1 ) {
return arguments.length > 2 && typeof segment1 !== 'number'
? this._add(Segment.readAll(arguments, 1), index)
: this._add([ Segment.read(arguments, 1) ], index)[0];
},
addSegment: function() {
return this._add([ Segment.read(arguments) ])[0];
},
insertSegment: function(index ) {
return this._add([ Segment.read(arguments, 1) ], index)[0];
},
addSegments: function(segments) {
return this._add(Segment.readAll(segments));
},
insertSegments: function(index, segments) {
return this._add(Segment.readAll(segments), index);
},
removeSegment: function(index) {
return this.removeSegments(index, index + 1)[0] || null;
},
removeSegments: function(from, to) {
from = from || 0;
to = Base.pick(to, this._segments.length);
var segments = this._segments,
curves = this._curves,
count = segments.length,
removed = segments.splice(from, to - from),
amount = removed.length;
if (!amount)
return removed;
for (var i = 0; i < amount; i++) {
var segment = removed[i];
if (segment._selectionState)
this._updateSelection(segment, segment._selectionState, 0);
delete segment._index;
delete segment._path;
}
for (var i = from, l = segments.length; i < l; i++)
segments[i]._index = i;
if (curves) {
var index = from > 0 && to === count + (this._closed ? 1 : 0)
? from - 1
: from,
curves = curves.splice(index, amount);
if (arguments[2])
removed._curves = curves.slice(1);
this._adjustCurves(index, index);
}
this._changed(5);
return removed;
},
clear: '#removeSegments',
isFullySelected: function() {
var length = this._segments.length;
return this._selected && length > 0 && this._selectedSegmentState
=== length * 4;
},
setFullySelected: function(selected) {
if (selected)
this._selectSegments(true);
this.setSelected(selected);
},
setSelected: function setSelected(selected) {
if (!selected)
this._selectSegments(false);
setSelected.base.call(this, selected);
},
_selectSegments: function(selected) {
var length = this._segments.length;
this._selectedSegmentState = selected
? length * 4 : 0;
for (var i = 0; i < length; i++)
this._segments[i]._selectionState = selected
? 4 : 0;
},
_updateSelection: function(segment, oldState, newState) {
segment._selectionState = newState;
var total = this._selectedSegmentState += newState - oldState;
if (total > 0)
this.setSelected(true);
},
flatten: function(maxDistance) {
var flattener = new PathFlattener(this),
pos = 0,
step = flattener.length / Math.ceil(flattener.length / maxDistance),
end = flattener.length + (this._closed ? -step : step) / 2;
var segments = [];
while (pos <= end) {
segments.push(new Segment(flattener.evaluate(pos, 0)));
pos += step;
}
this.setSegments(segments);
},
simplify: function(tolerance) {
if (this._segments.length > 2) {
var fitter = new PathFitter(this, tolerance || 2.5);
this.setSegments(fitter.fit());
}
},
split: function(index, parameter) {
if (parameter === null)
return;
if (arguments.length === 1) {
var arg = index;
if (typeof arg === 'number')
arg = this.getLocationAt(arg);
index = arg.index;
parameter = arg.parameter;
}
if (parameter >= 1) {
index++;
parameter--;
}
var curves = this.getCurves();
if (index >= 0 && index < curves.length) {
if (parameter > 0) {
curves[index++].divide(parameter, true);
}
var segs = this.removeSegments(index, this._segments.length, true),
path;
if (this._closed) {
this.setClosed(false);
path = this;
} else if (index > 0) {
path = this._clone(new Path().insertAbove(this, true));
}
path._add(segs, 0);
this.addSegment(segs[0]);
return path;
}
return null;
},
isClockwise: function() {
if (this._clockwise !== undefined)
return this._clockwise;
return Path.isClockwise(this._segments);
},
setClockwise: function(clockwise) {
if (this.isClockwise() != (clockwise = !!clockwise))
this.reverse();
this._clockwise = clockwise;
},
reverse: function() {
this._segments.reverse();
for (var i = 0, l = this._segments.length; i < l; i++) {
var segment = this._segments[i];
var handleIn = segment._handleIn;
segment._handleIn = segment._handleOut;
segment._handleOut = handleIn;
segment._index = i;
}
delete this._curves;
if (this._clockwise !== undefined)
this._clockwise = !this._clockwise;
},
join: function(path) {
if (path) {
var segments = path._segments,
last1 = this.getLastSegment(),
last2 = path.getLastSegment();
if (last1._point.equals(last2._point))
path.reverse();
var first1,
first2 = path.getFirstSegment();
if (last1._point.equals(first2._point)) {
last1.setHandleOut(first2._handleOut);
this._add(segments.slice(1));
} else {
first1 = this.getFirstSegment();
if (first1._point.equals(first2._point))
path.reverse();
last2 = path.getLastSegment();
if (first1._point.equals(last2._point)) {
first1.setHandleIn(last2._handleIn);
this._add(segments.slice(0, segments.length - 1), 0);
} else {
this._add(segments.slice());
}
}
if (path.closed)
this._add([segments[0]]);
path.remove();
first1 = this.getFirstSegment();
last1 = this.getLastSegment();
if (last1._point.equals(first1._point)) {
first1.setHandleIn(last1._handleIn);
last1.remove();
this.setClosed(true);
}
this._changed(5);
return true;
}
return false;
},
getLength: function() {
if (this._length == null) {
var curves = this.getCurves();
this._length = 0;
for (var i = 0, l = curves.length; i < l; i++)
this._length += curves[i].getLength();
}
return this._length;
},
getArea: function() {
var curves = this.getCurves();
var area = 0;
for (var i = 0, l = curves.length; i < l; i++)
area += curves[i].getArea();
return area;
},
_getOffset: function(location) {
var index = location && location.getIndex();
if (index != null) {
var curves = this.getCurves(),
offset = 0;
for (var i = 0; i < index; i++)
offset += curves[i].getLength();
var curve = curves[index];
return offset + curve.getLength(0, location.getParameter());
}
return null;
},
getLocationOf: function(point) {
point = Point.read(arguments);
var curves = this.getCurves();
for (var i = 0, l = curves.length; i < l; i++) {
var loc = curves[i].getLocationOf(point);
if (loc)
return loc;
}
return null;
},
getLocationAt: function(offset, isParameter) {
var curves = this.getCurves(),
length = 0;
if (isParameter) {
var index = ~~offset;
return curves[index].getLocationAt(offset - index, true);
}
for (var i = 0, l = curves.length; i < l; i++) {
var start = length,
curve = curves[i];
length += curve.getLength();
if (length >= offset) {
return curve.getLocationAt(offset - start);
}
}
if (offset <= this.getLength())
return new CurveLocation(curves[curves.length - 1], 1);
return null;
},
getPointAt: function(offset, isParameter) {
var loc = this.getLocationAt(offset, isParameter);
return loc && loc.getPoint();
},
getTangentAt: function(offset, isParameter) {
var loc = this.getLocationAt(offset, isParameter);
return loc && loc.getTangent();
},
getNormalAt: function(offset, isParameter) {
var loc = this.getLocationAt(offset, isParameter);
return loc && loc.getNormal();
},
getNearestLocation: function(point) {
point = Point.read(arguments);
var curves = this.getCurves(),
minDist = Infinity,
minLoc = null;
for (var i = 0, l = curves.length; i < l; i++) {
var loc = curves[i].getNearestLocation(point);
if (loc._distance < minDist) {
minDist = loc._distance;
minLoc = loc;
}
}
return minLoc;
},
getNearestPoint: function(point) {
point = Point.read(arguments);
return this.getNearestLocation(point).getPoint();
},
getStyle: function() {
var parent = this._parent;
return (parent && parent._type === 'compound-path'
? parent : this)._style;
},
toShape: function(insert) {
if (!this._closed)
return null;
var segments = this._segments,
type,
size,
radius,
topCenter;
function isColinear(i, j) {
return segments[i].isColinear(segments[j]);
}
function isOrthogonal(i) {
return segments[i].isOrthogonal();
}
function isArc(i) {
return segments[i].isArc();
}
function getDistance(i, j) {
return segments[i]._point.getDistance(segments[j]._point);
}
if (this.isPolygon() && segments.length === 4
&& isColinear(0, 2) && isColinear(1, 3) && isOrthogonal(1)) {
type = Shape.Rectangle;
size = new Size(getDistance(0, 3), getDistance(0, 1));
topCenter = segments[1]._point.add(segments[2]._point).divide(2);
} else if (segments.length === 8 && isArc(0) && isArc(2) && isArc(4)
&& isArc(6) && isColinear(1, 5) && isColinear(3, 7)) {
type = Shape.Rectangle;
size = new Size(getDistance(1, 6), getDistance(0, 3));
radius = size.subtract(new Size(getDistance(0, 7),
getDistance(1, 2))).divide(2);
topCenter = segments[3]._point.add(segments[4]._point).divide(2);
} else if (segments.length === 4
&& isArc(0) && isArc(1) && isArc(2) && isArc(3)) {
if (Numerical.isZero(getDistance(0, 2) - getDistance(1, 3))) {
type = Shape.Circle;
radius = getDistance(0, 2) / 2;
} else {
type = Shape.Ellipse;
radius = new Size(getDistance(2, 0) / 2, getDistance(3, 1) / 2);
}
topCenter = segments[1]._point;
}
if (type) {
var center = this.getPosition(true),
shape = new type({
center: center,
size: size,
radius: radius,
insert: false
});
shape.rotate(topCenter.subtract(center).getAngle() + 90);
shape.setStyle(this._style);
if (insert || insert === undefined)
shape.insertAbove(this);
return shape;
}
return null;
},
_getWinding: function(point) {
var closed = this._closed;
if (!closed && !this.hasFill()
|| !this._getBounds('getRoughBounds')._containsPoint(point))
return 0;
var curves = this.getCurves(),
segments = this._segments,
winding = 0,
roots1 = [],
roots2 = [],
last = (closed
? curves[curves.length - 1]
: new Curve(segments[segments.length - 1]._point,
segments[0]._point)).getValues(),
previous = last;
for (var i = 0, l = curves.length; i < l; i++) {
var curve = curves[i].getValues(),
x = curve[0],
y = curve[1];
if (!(x === curve[2] && y === curve[3] && x === curve[4]
&& y === curve[5] && x === curve[6] && y === curve[7])) {
winding += Curve._getWinding(curve, previous, point.x, point.y,
roots1, roots2);
previous = curve;
}
}
if (!closed) {
winding += Curve._getWinding(last, previous, point.x, point.y,
roots1, roots2);
}
return winding;
},
_hitTest: function(point, options) {
var style = this.getStyle(),
segments = this._segments,
closed = this._closed,
tolerance = options.tolerance,
radius = 0, join, cap, miterLimit,
that = this,
area, loc, res;
if (options.stroke) {
radius = style.getStrokeWidth() / 2;
if (radius > 0) {
join = style.getStrokeJoin();
cap = style.getStrokeCap();
miterLimit = radius * style.getMiterLimit();
} else {
join = cap = 'round';
}
radius += tolerance;
}
function checkPoint(seg, pt, name) {
if (point.getDistance(pt) < tolerance)
return new HitResult(name, that, { segment: seg, point: pt });
}
function checkSegmentPoints(seg, ends) {
var pt = seg._point;
return (ends || options.segments) && checkPoint(seg, pt, 'segment')
|| (!ends && options.handles) && (
checkPoint(seg, pt.add(seg._handleIn), 'handle-in') ||
checkPoint(seg, pt.add(seg._handleOut), 'handle-out'));
}
function addAreaPoint(point) {
area.push(point);
}
function getAreaCurve(index) {
var p1 = area[index],
p2 = area[(index + 1) % area.length];
return [p1.x, p1.y, p1.x, p1.y, p2.x, p2.y, p2.x ,p2.y];
}
function isInArea(point) {
var length = area.length,
previous = getAreaCurve(length - 1),
roots1 = [],
roots2 = [],
winding = 0;
for (var i = 0; i < length; i++) {
var curve = getAreaCurve(i);
winding += Curve._getWinding(curve, previous, point.x, point.y,
roots1, roots2);
previous = curve;
}
return !!winding;
}
function checkSegmentStroke(segment) {
if (join !== 'round' || cap !== 'round') {
area = [];
if (closed || segment._index > 0
&& segment._index < segments.length - 1) {
if (join !== 'round' && (segment._handleIn.isZero()
|| segment._handleOut.isZero()))
Path._addSquareJoin(segment, join, radius, miterLimit,
addAreaPoint, true);
} else if (cap !== 'round') {
Path._addSquareCap(segment, cap, radius, addAreaPoint, true);
}
if (area.length > 0)
return isInArea(point);
}
return point.getDistance(segment._point) <= radius;
}
if (options.ends && !options.segments && !closed) {
if (res = checkSegmentPoints(segments[0], true)
|| checkSegmentPoints(segments[segments.length - 1], true))
return res;
} else if (options.segments || options.handles) {
for (var i = 0, l = segments.length; i < l; i++) {
if (res = checkSegmentPoints(segments[i]))
return res;
}
}
if (radius > 0) {
loc = this.getNearestLocation(point);
if (loc) {
var parameter = loc.getParameter();
if (parameter === 0 || parameter === 1) {
if (!checkSegmentStroke(loc.getSegment()))
loc = null;
} else if (loc._distance > radius) {
loc = null;
}
}
if (!loc && join === 'miter') {
for (var i = 0, l = segments.length; i < l; i++) {
var segment = segments[i];
if (point.getDistance(segment._point) <= miterLimit
&& checkSegmentStroke(segment)) {
loc = segment.getLocation();
break;
}
}
}
}
return !loc && options.fill && this.hasFill() && this._contains(point)
? new HitResult('fill', this)
: loc
? new HitResult('stroke', this, { location: loc })
: null;
}
}, new function() {
function drawHandles(ctx, segments, matrix, size) {
var half = size / 2;
function drawHandle(index) {
var hX = coords[index],
hY = coords[index + 1];
if (pX != hX || pY != hY) {
ctx.beginPath();
ctx.moveTo(pX, pY);
ctx.lineTo(hX, hY);
ctx.stroke();
ctx.beginPath();
ctx.arc(hX, hY, half, 0, Math.PI * 2, true);
ctx.fill();
}
}
var coords = new Array(6);
for (var i = 0, l = segments.length; i < l; i++) {
var segment = segments[i];
segment._transformCoordinates(matrix, coords, false);
var state = segment._selectionState,
selected = state & 4,
pX = coords[0],
pY = coords[1];
if (selected || (state & 1))
drawHandle(2);
if (selected || (state & 2))
drawHandle(4);
ctx.save();
ctx.beginPath();
ctx.rect(pX - half, pY - half, size, size);
ctx.fill();
if (!selected) {
ctx.beginPath();
ctx.rect(pX - half + 1, pY - half + 1, size - 2, size - 2);
ctx.fillStyle = '#ffffff';
ctx.fill();
}
ctx.restore();
}
}
function drawSegments(ctx, path, matrix) {
var segments = path._segments,
length = segments.length,
coords = new Array(6),
first = true,
curX, curY,
prevX, prevY,
inX, inY,
outX, outY;
function drawSegment(i) {
var segment = segments[i];
if (matrix) {
segment._transformCoordinates(matrix, coords, false);
curX = coords[0];
curY = coords[1];
} else {
var point = segment._point;
curX = point._x;
curY = point._y;
}
if (first) {
ctx.moveTo(curX, curY);
first = false;
} else {
if (matrix) {
inX = coords[2];
inY = coords[3];
} else {
var handle = segment._handleIn;
inX = curX + handle._x;
inY = curY + handle._y;
}
if (inX == curX && inY == curY && outX == prevX && outY == prevY) {
ctx.lineTo(curX, curY);
} else {
ctx.bezierCurveTo(outX, outY, inX, inY, curX, curY);
}
}
prevX = curX;
prevY = curY;
if (matrix) {
outX = coords[4];
outY = coords[5];
} else {
var handle = segment._handleOut;
outX = prevX + handle._x;
outY = prevY + handle._y;
}
}
for (var i = 0; i < length; i++)
drawSegment(i);
if (path._closed && length > 1)
drawSegment(0);
}
return {
_draw: function(ctx, param) {
var clip = param.clip,
compound = param.compound;
if (!compound)
ctx.beginPath();
var style = this.getStyle(),
hasFill = style.hasFill(),
hasStroke = style.hasStroke(),
dashArray = style.getDashArray(),
dashLength = !paper.support.nativeDash && hasStroke
&& dashArray && dashArray.length;
function getOffset(i) {
return dashArray[((i % dashLength) + dashLength) % dashLength];
}
if (hasFill || hasStroke && !dashLength || compound || clip)
drawSegments(ctx, this);
if (this._closed)
ctx.closePath();
if (!clip && !compound && (hasFill || hasStroke)) {
this._setStyles(ctx);
if (hasFill) {
ctx.fill(style.getWindingRule());
ctx.shadowColor = 'rgba(0,0,0,0)';
}
if (hasStroke) {
if (dashLength) {
ctx.beginPath();
var flattener = new PathFlattener(this),
length = flattener.length,
from = -style.getDashOffset(), to,
i = 0;
from = from % length;
while (from > 0) {
from -= getOffset(i--) + getOffset(i--);
}
while (from < length) {
to = from + getOffset(i++);
if (from > 0 || to > 0)
flattener.drawPart(ctx,
Math.max(from, 0), Math.max(to, 0));
from = to + getOffset(i++);
}
}
ctx.stroke();
}
}
},
_drawSelected: function(ctx, matrix) {
ctx.beginPath();
drawSegments(ctx, this, matrix);
ctx.stroke();
drawHandles(ctx, this._segments, matrix,
this._project.options.handleSize || 4);
}
};
}, new function() {
function getFirstControlPoints(rhs) {
var n = rhs.length,
x = [],
tmp = [],
b = 2;
x[0] = rhs[0] / b;
for (var i = 1; i < n; i++) {
tmp[i] = 1 / b;
b = (i < n - 1 ? 4 : 2) - tmp[i];
x[i] = (rhs[i] - x[i - 1]) / b;
}
for (var i = 1; i < n; i++) {
x[n - i - 1] -= tmp[n - i] * x[n - i];
}
return x;
}
return {
smooth: function() {
var segments = this._segments,
size = segments.length,
closed = this._closed,
n = size,
overlap = 0;
if (size <= 2)
return;
if (closed) {
overlap = Math.min(size, 4);
n += Math.min(size, overlap) * 2;
}
var knots = [];
for (var i = 0; i < size; i++)
knots[i + overlap] = segments[i]._point;
if (closed) {
for (var i = 0; i < overlap; i++) {
knots[i] = segments[i + size - overlap]._point;
knots[i + size + overlap] = segments[i]._point;
}
} else {
n--;
}
var rhs = [];
for (var i = 1; i < n - 1; i++)
rhs[i] = 4 * knots[i]._x + 2 * knots[i + 1]._x;
rhs[0] = knots[0]._x + 2 * knots[1]._x;
rhs[n - 1] = 3 * knots[n - 1]._x;
var x = getFirstControlPoints(rhs);
for (var i = 1; i < n - 1; i++)
rhs[i] = 4 * knots[i]._y + 2 * knots[i + 1]._y;
rhs[0] = knots[0]._y + 2 * knots[1]._y;
rhs[n - 1] = 3 * knots[n - 1]._y;
var y = getFirstControlPoints(rhs);
if (closed) {
for (var i = 0, j = size; i < overlap; i++, j++) {
var f1 = i / overlap,
f2 = 1 - f1,
ie = i + overlap,
je = j + overlap;
x[j] = x[i] * f1 + x[j] * f2;
y[j] = y[i] * f1 + y[j] * f2;
x[je] = x[ie] * f2 + x[je] * f1;
y[je] = y[ie] * f2 + y[je] * f1;
}
n--;
}
var handleIn = null;
for (var i = overlap; i <= n - overlap; i++) {
var segment = segments[i - overlap];
if (handleIn)
segment.setHandleIn(handleIn.subtract(segment._point));
if (i < n) {
segment.setHandleOut(
new Point(x[i], y[i]).subtract(segment._point));
handleIn = i < n - 1
? new Point(
2 * knots[i + 1]._x - x[i + 1],
2 * knots[i + 1]._y - y[i + 1])
: new Point(
(knots[n]._x + x[n - 1]) / 2,
(knots[n]._y + y[n - 1]) / 2);
}
}
if (closed && handleIn) {
var segment = this._segments[0];
segment.setHandleIn(handleIn.subtract(segment._point));
}
}
};
}, new function() {
function getCurrentSegment(that) {
var segments = that._segments;
if (segments.length == 0)
throw new Error('Use a moveTo() command first');
return segments[segments.length - 1];
}
return {
moveTo: function() {
if (this._segments.length === 1)
this.removeSegment(0);
if (!this._segments.length)
this._add([ new Segment(Point.read(arguments)) ]);
},
moveBy: function() {
throw new Error('moveBy() is unsupported on Path items.');
},
lineTo: function() {
this._add([ new Segment(Point.read(arguments)) ]);
},
cubicCurveTo: function() {
var handle1 = Point.read(arguments),
handle2 = Point.read(arguments),
to = Point.read(arguments),
current = getCurrentSegment(this);
current.setHandleOut(handle1.subtract(current._point));
this._add([ new Segment(to, handle2.subtract(to)) ]);
},
quadraticCurveTo: function() {
var handle = Point.read(arguments),
to = Point.read(arguments),
current = getCurrentSegment(this)._point;
this.cubicCurveTo(
handle.add(current.subtract(handle).multiply(1 / 3)),
handle.add(to.subtract(handle).multiply(1 / 3)),
to
);
},
curveTo: function() {
var through = Point.read(arguments),
to = Point.read(arguments),
t = Base.pick(Base.read(arguments), 0.5),
t1 = 1 - t,
current = getCurrentSegment(this)._point,
handle = through.subtract(current.multiply(t1 * t1))
.subtract(to.multiply(t * t)).divide(2 * t * t1);
if (handle.isNaN())
throw new Error(
'Cannot put a curve through points with parameter = ' + t);
this.quadraticCurveTo(handle, to);
},
arcTo: function() {
var current = getCurrentSegment(this),
from = current._point,
through,
to = Point.read(arguments),
clockwise = Base.pick(Base.peek(arguments), true);
if (typeof clockwise === 'boolean') {
var middle = from.add(to).divide(2),
through = middle.add(middle.subtract(from).rotate(
clockwise ? -90 : 90));
} else {
through = to;
to = Point.read(arguments);
}
var l1 = new Line(from.add(through).divide(2),
through.subtract(from).rotate(90), true),
l2 = new Line(through.add(to).divide(2),
to.subtract(through).rotate(90), true),
center = l1.intersect(l2, true),
line = new Line(from, to),
throughSide = line.getSide(through);
if (!center) {
if (!throughSide)
return this.lineTo(to);
throw new Error('Cannot put an arc through the given points: '
+ [from, through, to]);
}
var vector = from.subtract(center),
extent = vector.getDirectedAngle(to.subtract(center)),
centerSide = line.getSide(center);
if (centerSide == 0) {
extent = throughSide * Math.abs(extent);
} else if (throughSide == centerSide) {
extent -= 360 * (extent < 0 ? -1 : 1);
}
var ext = Math.abs(extent),
count = ext >= 360 ? 4 : Math.ceil(ext / 90),
inc = extent / count,
half = inc * Math.PI / 360,
z = 4 / 3 * Math.sin(half) / (1 + Math.cos(half)),
segments = [];
for (var i = 0; i <= count; i++) {
var pt = i < count ? center.add(vector) : to;
var out = i < count ? vector.rotate(90).multiply(z) : null;
if (i == 0) {
current.setHandleOut(out);
} else {
segments.push(
new Segment(pt, vector.rotate(-90).multiply(z), out));
}
vector = vector.rotate(inc);
}
this._add(segments);
},
lineBy: function() {
var to = Point.read(arguments),
current = getCurrentSegment(this)._point;
this.lineTo(current.add(to));
},
curveBy: function() {
var through = Point.read(arguments),
to = Point.read(arguments),
parameter = Base.read(arguments),
current = getCurrentSegment(this)._point;
this.curveTo(current.add(through), current.add(to), parameter);
},
cubicCurveBy: function() {
var handle1 = Point.read(arguments),
handle2 = Point.read(arguments),
to = Point.read(arguments),
current = getCurrentSegment(this)._point;
this.cubicCurveTo(current.add(handle1), current.add(handle2),
current.add(to));
},
quadraticCurveBy: function() {
var handle = Point.read(arguments),
to = Point.read(arguments),
current = getCurrentSegment(this)._point;
this.quadraticCurveTo(current.add(handle), current.add(to));
},
arcBy: function() {
var current = getCurrentSegment(this)._point,
point = current.add(Point.read(arguments)),
clockwise = Base.pick(Base.peek(arguments), true);
if (typeof clockwise === 'boolean') {
this.arcTo(point, clockwise);
} else {
this.arcTo(point, current.add(Point.read(arguments)));
}
},
closePath: function() {
var first = this.getFirstSegment(),
last = this.getLastSegment();
if (first._point.equals(last._point)) {
first.setHandleIn(last._handleIn);
last.remove();
}
this.setClosed(true);
}
};
}, {
_getBounds: function(getter, matrix) {
return Path[getter](this._segments, this._closed, this.getStyle(),
matrix);
},
statics: {
isClockwise: function(segments) {
var sum = 0;
for (var i = 0, l = segments.length; i < l; i++) {
var v = Curve.getValues(
segments[i], segments[i + 1 < l ? i + 1 : 0]);
for (var j = 2; j < 8; j += 2)
sum += (v[j - 2] - v[j]) * (v[j + 1] + v[j - 1]);
}
return sum > 0;
},
getBounds: function(segments, closed, style, matrix, strokePadding) {
var first = segments[0];
if (!first)
return new Rectangle();
var coords = new Array(6),
prevCoords = first._transformCoordinates(matrix, new Array(6), false),
min = prevCoords.slice(0, 2),
max = min.slice(),
roots = new Array(2);
function processSegment(segment) {
segment._transformCoordinates(matrix, coords, false);
for (var i = 0; i < 2; i++) {
Curve._addBounds(
prevCoords[i],
prevCoords[i + 4],
coords[i + 2],
coords[i],
i, strokePadding ? strokePadding[i] : 0, min, max, roots);
}
var tmp = prevCoords;
prevCoords = coords;
coords = tmp;
}
for (var i = 1, l = segments.length; i < l; i++)
processSegment(segments[i]);
if (closed)
processSegment(first);
return new Rectangle(min[0], min[1], max[0] - min[0], max[1] - min[1]);
},
getStrokeBounds: function(segments, closed, style, matrix) {
function getPenPadding(radius, matrix) {
if (!matrix)
return [radius, radius];
var mx = matrix.shiftless(),
hor = mx.transform(new Point(radius, 0)),
ver = mx.transform(new Point(0, radius)),
phi = hor.getAngleInRadians(),
a = hor.getLength(),
b = ver.getLength();
var sin = Math.sin(phi),
cos = Math.cos(phi),
tan = Math.tan(phi),
tx = -Math.atan(b * tan / a),
ty = Math.atan(b / (tan * a));
return [Math.abs(a * Math.cos(tx) * cos - b * Math.sin(tx) * sin),
Math.abs(b * Math.sin(ty) * cos + a * Math.cos(ty) * sin)];
}
if (!style.hasStroke())
return Path.getBounds(segments, closed, style, matrix);
var length = segments.length - (closed ? 0 : 1),
radius = style.getStrokeWidth() / 2,
padding = getPenPadding(radius, matrix),
bounds = Path.getBounds(segments, closed, style, matrix, padding),
join = style.getStrokeJoin(),
cap = style.getStrokeCap(),
miterLimit = radius * style.getMiterLimit();
var joinBounds = new Rectangle(new Size(padding).multiply(2));
function add(point) {
bounds = bounds.include(matrix
? matrix._transformPoint(point, point) : point);
}
function addJoin(segment, join) {
if (join === 'round' || !segment._handleIn.isZero()
&& !segment._handleOut.isZero()) {
bounds = bounds.unite(joinBounds.setCenter(matrix
? matrix._transformPoint(segment._point) : segment._point));
} else {
Path._addSquareJoin(segment, join, radius, miterLimit, add);
}
}
function addCap(segment, cap) {
switch (cap) {
case 'round':
addJoin(segment, cap);
break;
case 'butt':
case 'square':
Path._addSquareCap(segment, cap, radius, add);
break;
}
}
for (var i = 1; i < length; i++)
addJoin(segments[i], join);
if (closed) {
addJoin(segments[0], join);
} else {
addCap(segments[0], cap);
addCap(segments[segments.length - 1], cap);
}
return bounds;
},
_addSquareJoin: function(segment, join, radius, miterLimit, addPoint, area) {
var curve2 = segment.getCurve(),
curve1 = curve2.getPrevious(),
point = curve2.getPointAt(0, true),
normal1 = curve1.getNormalAt(1, true),
normal2 = curve2.getNormalAt(0, true),
step = normal1.getDirectedAngle(normal2) < 0 ? -radius : radius;
normal1.setLength(step);
normal2.setLength(step);
if (area) {
addPoint(point);
addPoint(point.add(normal1));
}
if (join === 'miter') {
var corner = new Line(
point.add(normal1),
new Point(-normal1.y, normal1.x), true
).intersect(new Line(
point.add(normal2),
new Point(-normal2.y, normal2.x), true
), true);
if (corner && point.getDistance(corner) <= miterLimit) {
addPoint(corner);
if (!area)
return;
}
}
if (!area)
addPoint(point.add(normal1));
addPoint(point.add(normal2));
},
_addSquareCap: function(segment, cap, radius, addPoint, area) {
var point = segment._point,
loc = segment.getLocation(),
normal = loc.getNormal().normalize(radius);
if (area) {
addPoint(point.subtract(normal));
addPoint(point.add(normal));
}
if (cap === 'square')
point = point.add(normal.rotate(loc.getParameter() == 0 ? -90 : 90));
addPoint(point.add(normal));
addPoint(point.subtract(normal));
},
getHandleBounds: function(segments, closed, style, matrix, strokePadding,
joinPadding) {
var coords = new Array(6),
x1 = Infinity,
x2 = -x1,
y1 = x1,
y2 = x2;
strokePadding = strokePadding / 2 || 0;
joinPadding = joinPadding / 2 || 0;
for (var i = 0, l = segments.length; i < l; i++) {
var segment = segments[i];
segment._transformCoordinates(matrix, coords, false);
for (var j = 0; j < 6; j += 2) {
var padding = j == 0 ? joinPadding : strokePadding,
x = coords[j],
y = coords[j + 1],
xn = x - padding,
xx = x + padding,
yn = y - padding,
yx = y + padding;
if (xn < x1) x1 = xn;
if (xx > x2) x2 = xx;
if (yn < y1) y1 = yn;
if (yx > y2) y2 = yx;
}
}
return new Rectangle(x1, y1, x2 - x1, y2 - y1);
},
getRoughBounds: function(segments, closed, style, matrix) {
var strokeWidth = style.getStrokeColor() ? style.getStrokeWidth() : 0,
joinWidth = strokeWidth;
if (strokeWidth === 0) {
strokeWidth = 0.00001;
} else {
if (style.getStrokeJoin() === 'miter')
joinWidth = strokeWidth * style.getMiterLimit();
if (style.getStrokeCap() === 'square')
joinWidth = Math.max(joinWidth, strokeWidth * Math.sqrt(2));
}
return Path.getHandleBounds(segments, closed, style, matrix,
strokeWidth, joinWidth);
}
}});
Path.inject({ statics: new function() {
var kappa = Numerical.KAPPA,
ellipseSegments = [
new Segment([-1, 0], [0, kappa ], [0, -kappa]),
new Segment([0, -1], [-kappa, 0], [kappa, 0 ]),
new Segment([1, 0], [0, -kappa], [0, kappa ]),
new Segment([0, 1], [kappa, 0 ], [-kappa, 0])
];
function createEllipse(center, radius, args) {
var path = new Path(),
segments = new Array(4);
for (var i = 0; i < 4; i++) {
var segment = ellipseSegments[i];
segments[i] = new Segment(
segment._point.multiply(radius).add(center),
segment._handleIn.multiply(radius),
segment._handleOut.multiply(radius)
);
}
path._add(segments);
path._closed = true;
return path.set(Base.getNamed(args));
}
return {
Line: function() {
return new Path(
Point.readNamed(arguments, 'from'),
Point.readNamed(arguments, 'to')
).set(Base.getNamed(arguments));
},
Circle: function() {
var center = Point.readNamed(arguments, 'center'),
radius = Base.readNamed(arguments, 'radius');
return createEllipse(center, new Size(radius), arguments);
},
Rectangle: function() {
var rect = Rectangle.readNamed(arguments, 'rectangle'),
radius = Size.readNamed(arguments, 'radius', 0, 0,
{ readNull: true }),
bl = rect.getBottomLeft(true),
tl = rect.getTopLeft(true),
tr = rect.getTopRight(true),
br = rect.getBottomRight(true);
path = new Path();
if (!radius || radius.isZero()) {
path._add([
new Segment(bl),
new Segment(tl),
new Segment(tr),
new Segment(br)
]);
} else {
radius = Size.min(radius, rect.getSize(true).divide(2));
var rx = radius.width,
ry = radius.height,
hx = rx * kappa,
hy = ry * kappa;
path._add([
new Segment(bl.add(rx, 0), null, [-hx, 0]),
new Segment(bl.subtract(0, ry), [0, hy]),
new Segment(tl.add(0, ry), null, [0, -hy]),
new Segment(tl.add(rx, 0), [-hx, 0], null),
new Segment(tr.subtract(rx, 0), null, [hx, 0]),
new Segment(tr.add(0, ry), [0, -hy], null),
new Segment(br.subtract(0, ry), null, [0, hy]),
new Segment(br.subtract(rx, 0), [hx, 0])
]);
}
path._closed = true;
return path.set(Base.getNamed(arguments));
},
RoundRectangle: '#Rectangle',
Ellipse: function() {
var ellipse = Shape._readEllipse(arguments);
return createEllipse(ellipse.center, ellipse.radius, arguments);
},
Oval: '#Ellipse',
Arc: function() {
var from = Point.readNamed(arguments, 'from'),
through = Point.readNamed(arguments, 'through'),
to = Point.readNamed(arguments, 'to'),
path = new Path();
path.moveTo(from);
path.arcTo(through, to);
return path.set(Base.getNamed(arguments));
},
RegularPolygon: function() {
var center = Point.readNamed(arguments, 'center'),
sides = Base.readNamed(arguments, 'sides'),
radius = Base.readNamed(arguments, 'radius'),
path = new Path(),
step = 360 / sides,
three = !(sides % 3),
vector = new Point(0, three ? -radius : radius),
offset = three ? -1 : 0.5,
segments = new Array(sides);
for (var i = 0; i < sides; i++) {
segments[i] = new Segment(center.add(
vector.rotate((i + offset) * step)));
}
path._add(segments);
path._closed = true;
return path.set(Base.getNamed(arguments));
},
Star: function() {
var center = Point.readNamed(arguments, 'center'),
points = Base.readNamed(arguments, 'points') * 2,
radius1 = Base.readNamed(arguments, 'radius1'),
radius2 = Base.readNamed(arguments, 'radius2'),
path = new Path(),
step = 360 / points,
vector = new Point(0, -1),
segments = new Array(points);
for (var i = 0; i < points; i++) {
segments[i] = new Segment(center.add(
vector.rotate(step * i).multiply(i % 2 ? radius2 : radius1)));
}
path._add(segments);
path._closed = true;
return path.set(Base.getNamed(arguments));
}
};
}});
var CompoundPath = PathItem.extend({
_class: 'CompoundPath',
_serializeFields: {
children: []
},
initialize: function CompoundPath(arg) {
this._children = [];
this._namedChildren = {};
if (!this._initialize(arg))
this.addChildren(Array.isArray(arg) ? arg : arguments);
},
insertChildren: function insertChildren(index, items, _preserve) {
items = insertChildren.base.call(this, index, items, _preserve, 'path');
for (var i = 0, l = !_preserve && items && items.length; i < l; i++) {
var item = items[i];
if (item._clockwise === undefined)
item.setClockwise(item._index === 0);
}
return items;
},
reverse: function() {
var children = this._children;
for (var i = 0, l = children.length; i < l; i++)
children[i].reverse();
},
smooth: function() {
for (var i = 0, l = this._children.length; i < l; i++)
this._children[i].smooth();
},
isClockwise: function() {
var child = this.getFirstChild();
return child && child.isClockwise();
},
setClockwise: function(clockwise) {
if (this.isClockwise() != !!clockwise)
this.reverse();
},
getFirstSegment: function() {
var first = this.getFirstChild();
return first && first.getFirstSegment();
},
getLastSegment: function() {
var last = this.getLastChild();
return last && last.getLastSegment();
},
getCurves: function() {
var children = this._children,
curves = [];
for (var i = 0, l = children.length; i < l; i++)
curves = curves.concat(children[i].getCurves());
return curves;
},
getFirstCurve: function() {
var first = this.getFirstChild();
return first && first.getFirstCurve();
},
getLastCurve: function() {
var last = this.getLastChild();
return last && last.getFirstCurve();
},
getArea: function() {
var children = this._children,
area = 0;
for (var i = 0, l = children.length; i < l; i++)
area += children[i].getArea();
return area;
},
getPathData: function() {
var children = this._children,
paths = [];
for (var i = 0, l = children.length; i < l; i++)
paths.push(children[i].getPathData(arguments[0]));
return paths.join(' ');
},
_getWinding: function(point) {
var children = this._children,
winding = 0;
for (var i = 0, l = children.length; i < l; i++)
winding += children[i]._getWinding(point);
return winding;
},
_hitTest : function _hitTest(point, options) {
var res = _hitTest.base.call(this, point,
new Base(options, { fill: false }));
if (!res) {
if (options.compoundChildren) {
var children = this._children;
for (var i = children.length - 1; i >= 0 && !res; i--)
res = children[i]._hitTest(point, options);
} else if (options.fill && this.hasFill()
&& this._contains(point)) {
res = new HitResult('fill', this);
}
}
return res;
},
_draw: function(ctx, param) {
var children = this._children;
if (children.length === 0)
return;
ctx.beginPath();
param = param.extend({ compound: true });
for (var i = 0, l = children.length; i < l; i++)
children[i].draw(ctx, param);
if (!param.clip) {
this._setStyles(ctx);
var style = this._style;
if (style.hasFill()) {
ctx.fill(style.getWindingRule());
ctx.shadowColor = 'rgba(0,0,0,0)';
}
if (style.hasStroke())
ctx.stroke();
}
}
}, new function() {
function getCurrentPath(that) {
if (!that._children.length)
throw new Error('Use a moveTo() command first');
return that._children[that._children.length - 1];
}
var fields = {
moveTo: function() {
var path = new Path();
this.addChild(path);
path.moveTo.apply(path, arguments);
},
moveBy: function() {
this.moveTo(getCurrentPath(this).getLastSegment()._point.add(
Point.read(arguments)));
},
closePath: function() {
getCurrentPath(this).closePath();
}
};
Base.each(['lineTo', 'cubicCurveTo', 'quadraticCurveTo', 'curveTo', 'arcTo',
'lineBy', 'cubicCurveBy', 'quadraticCurveBy', 'curveBy', 'arcBy'],
function(key) {
fields[key] = function() {
var path = getCurrentPath(this);
path[key].apply(path, arguments);
};
}
);
return fields;
});
var PathFlattener = Base.extend({
initialize: function(path) {
this.curves = [];
this.parts = [];
this.length = 0;
this.index = 0;
var segments = path._segments,
segment1 = segments[0],
segment2,
that = this;
function addCurve(segment1, segment2) {
var curve = Curve.getValues(segment1, segment2);
that.curves.push(curve);
that._computeParts(curve, segment1._index, 0, 1);
}
for (var i = 1, l = segments.length; i < l; i++) {
segment2 = segments[i];
addCurve(segment1, segment2);
segment1 = segment2;
}
if (path._closed)
addCurve(segment2, segments[0]);
},
_computeParts: function(curve, index, minT, maxT) {
if ((maxT - minT) > 1 / 32 && !Curve.isFlatEnough(curve, 0.25)) {
var curves = Curve.subdivide(curve);
var halfT = (minT + maxT) / 2;
this._computeParts(curves[0], index, minT, halfT);
this._computeParts(curves[1], index, halfT, maxT);
} else {
var x = curve[6] - curve[0],
y = curve[7] - curve[1],
dist = Math.sqrt(x * x + y * y);
if (dist > 0.00001) {
this.length += dist;
this.parts.push({
offset: this.length,
value: maxT,
index: index
});
}
}
},
getParameterAt: function(offset) {
var i, j = this.index;
for (;;) {
i = j;
if (j == 0 || this.parts[--j].offset < offset)
break;
}
for (var l = this.parts.length; i < l; i++) {
var part = this.parts[i];
if (part.offset >= offset) {
this.index = i;
var prev = this.parts[i - 1];
var prevVal = prev && prev.index == part.index ? prev.value : 0,
prevLen = prev ? prev.offset : 0;
return {
value: prevVal + (part.value - prevVal)
* (offset - prevLen) / (part.offset - prevLen),
index: part.index
};
}
}
var part = this.parts[this.parts.length - 1];
return {
value: 1,
index: part.index
};
},
evaluate: function(offset, type) {
var param = this.getParameterAt(offset);
return Curve.evaluate(this.curves[param.index], param.value, type);
},
drawPart: function(ctx, from, to) {
from = this.getParameterAt(from);
to = this.getParameterAt(to);
for (var i = from.index; i <= to.index; i++) {
var curve = Curve.getPart(this.curves[i],
i == from.index ? from.value : 0,
i == to.index ? to.value : 1);
if (i == from.index)
ctx.moveTo(curve[0], curve[1]);
ctx.bezierCurveTo.apply(ctx, curve.slice(2));
}
}
});
var PathFitter = Base.extend({
initialize: function(path, error) {
this.points = [];
var segments = path._segments,
prev;
for (var i = 0, l = segments.length; i < l; i++) {
var point = segments[i].point.clone();
if (!prev || !prev.equals(point)) {
this.points.push(point);
prev = point;
}
}
this.error = error;
},
fit: function() {
var points = this.points,
length = points.length;
this.segments = length > 0 ? [new Segment(points[0])] : [];
if (length > 1)
this.fitCubic(0, length - 1,
points[1].subtract(points[0]).normalize(),
points[length - 2].subtract(points[length - 1]).normalize());
return this.segments;
},
fitCubic: function(first, last, tan1, tan2) {
if (last - first == 1) {
var pt1 = this.points[first],
pt2 = this.points[last],
dist = pt1.getDistance(pt2) / 3;
this.addCurve([pt1, pt1.add(tan1.normalize(dist)),
pt2.add(tan2.normalize(dist)), pt2]);
return;
}
var uPrime = this.chordLengthParameterize(first, last),
maxError = Math.max(this.error, this.error * this.error),
split;
for (var i = 0; i <= 4; i++) {
var curve = this.generateBezier(first, last, uPrime, tan1, tan2);
var max = this.findMaxError(first, last, curve, uPrime);
if (max.error < this.error) {
this.addCurve(curve);
return;
}
split = max.index;
if (max.error >= maxError)
break;
this.reparameterize(first, last, uPrime, curve);
maxError = max.error;
}
var V1 = this.points[split - 1].subtract(this.points[split]),
V2 = this.points[split].subtract(this.points[split + 1]),
tanCenter = V1.add(V2).divide(2).normalize();
this.fitCubic(first, split, tan1, tanCenter);
this.fitCubic(split, last, tanCenter.negate(), tan2);
},
addCurve: function(curve) {
var prev = this.segments[this.segments.length - 1];
prev.setHandleOut(curve[1].subtract(curve[0]));
this.segments.push(
new Segment(curve[3], curve[2].subtract(curve[3])));
},
generateBezier: function(first, last, uPrime, tan1, tan2) {
var epsilon = 1e-11,
pt1 = this.points[first],
pt2 = this.points[last],
C = [[0, 0], [0, 0]],
X = [0, 0];
for (var i = 0, l = last - first + 1; i < l; i++) {
var u = uPrime[i],
t = 1 - u,
b = 3 * u * t,
b0 = t * t * t,
b1 = b * t,
b2 = b * u,
b3 = u * u * u,
a1 = tan1.normalize(b1),
a2 = tan2.normalize(b2),
tmp = this.points[first + i]
.subtract(pt1.multiply(b0 + b1))
.subtract(pt2.multiply(b2 + b3));
C[0][0] += a1.dot(a1);
C[0][1] += a1.dot(a2);
C[1][0] = C[0][1];
C[1][1] += a2.dot(a2);
X[0] += a1.dot(tmp);
X[1] += a2.dot(tmp);
}
var detC0C1 = C[0][0] * C[1][1] - C[1][0] * C[0][1],
alpha1, alpha2;
if (Math.abs(detC0C1) > epsilon) {
var detC0X = C[0][0] * X[1] - C[1][0] * X[0],
detXC1 = X[0] * C[1][1] - X[1] * C[0][1];
alpha1 = detXC1 / detC0C1;
alpha2 = detC0X / detC0C1;
} else {
var c0 = C[0][0] + C[0][1],
c1 = C[1][0] + C[1][1];
if (Math.abs(c0) > epsilon) {
alpha1 = alpha2 = X[0] / c0;
} else if (Math.abs(c1) > epsilon) {
alpha1 = alpha2 = X[1] / c1;
} else {
alpha1 = alpha2 = 0;
}
}
var segLength = pt2.getDistance(pt1);
epsilon *= segLength;
if (alpha1 < epsilon || alpha2 < epsilon) {
alpha1 = alpha2 = segLength / 3;
}
return [pt1, pt1.add(tan1.normalize(alpha1)),
pt2.add(tan2.normalize(alpha2)), pt2];
},
reparameterize: function(first, last, u, curve) {
for (var i = first; i <= last; i++) {
u[i - first] = this.findRoot(curve, this.points[i], u[i - first]);
}
},
findRoot: function(curve, point, u) {
var curve1 = [],
curve2 = [];
for (var i = 0; i <= 2; i++) {
curve1[i] = curve[i + 1].subtract(curve[i]).multiply(3);
}
for (var i = 0; i <= 1; i++) {
curve2[i] = curve1[i + 1].subtract(curve1[i]).multiply(2);
}
var pt = this.evaluate(3, curve, u),
pt1 = this.evaluate(2, curve1, u),
pt2 = this.evaluate(1, curve2, u),
diff = pt.subtract(point),
df = pt1.dot(pt1) + diff.dot(pt2);
if (Math.abs(df) < 0.00001)
return u;
return u - diff.dot(pt1) / df;
},
evaluate: function(degree, curve, t) {
var tmp = curve.slice();
for (var i = 1; i <= degree; i++) {
for (var j = 0; j <= degree - i; j++) {
tmp[j] = tmp[j].multiply(1 - t).add(tmp[j + 1].multiply(t));
}
}
return tmp[0];
},
chordLengthParameterize: function(first, last) {
var u = [0];
for (var i = first + 1; i <= last; i++) {
u[i - first] = u[i - first - 1]
+ this.points[i].getDistance(this.points[i - 1]);
}
for (var i = 1, m = last - first; i <= m; i++) {
u[i] /= u[m];
}
return u;
},
findMaxError: function(first, last, curve, u) {
var index = Math.floor((last - first + 1) / 2),
maxDist = 0;
for (var i = first + 1; i < last; i++) {
var P = this.evaluate(3, curve, u[i - first]);
var v = P.subtract(this.points[i]);
var dist = v.x * v.x + v.y * v.y;
if (dist >= maxDist) {
maxDist = dist;
index = i;
}
}
return {
error: maxDist,
index: index
};
}
});
PathItem.inject(new function() {
function splitPath(intersections, collectOthers) {
intersections.sort(function(loc1, loc2) {
var path1 = loc1.getPath(),
path2 = loc2.getPath();
return path1 === path2
? (loc1.getIndex() + loc1.getParameter())
- (loc2.getIndex() + loc2.getParameter())
: path1._id - path2._id;
});
var others = collectOthers && [];
for (var i = intersections.length - 1; i >= 0; i--) {
var loc = intersections[i],
other = loc.getIntersection(),
curve = loc.divide(),
segment = curve && curve.getSegment1() || loc.getSegment();
if (others)
others.push(other);
segment._intersection = other;
loc._segment = segment;
}
return others;
}
function reorientPath(path) {
if (path instanceof CompoundPath) {
var children = path.removeChildren(),
length = children.length,
bounds = new Array(length),
counters = new Array(length),
clockwise;
children.sort(function(a, b){
var b1 = a.getBounds(), b2 = b.getBounds();
return b1._width * b1._height < b2._width * b2._height;
});
path.addChildren(children);
clockwise = children[0].isClockwise();
for (var i = 0; i < length; i++) {
bounds[i] = children[i].getBounds();
counters[i] = 0;
}
for (var i = 0; i < length; i++) {
for (var j = 1; j < length; j++) {
if (i !== j && bounds[i].contains(bounds[j]))
counters[j]++;
}
if (i > 0 && counters[i] % 2 === 0)
children[i].setClockwise(clockwise);
}
}
return path;
}
function computeBoolean(path1, path2, operator, subtract) {
path1 = reorientPath(path1.clone(false));
path2 = reorientPath(path2.clone(false));
var path1Clockwise = path1.isClockwise(),
path2Clockwise = path2.isClockwise(),
intersections = path1.getIntersections(path2);
splitPath(splitPath(intersections, true));
if (!path1Clockwise)
path1.reverse();
if (!(subtract ^ path2Clockwise))
path2.reverse();
path1Clockwise = true;
path2Clockwise = !subtract;
var paths = []
.concat(path1._children || [path1])
.concat(path2._children || [path2]),
segments = [],
result = new CompoundPath();
for (var i = 0, l = paths.length; i < l; i++) {
var path = paths[i],
parent = path._parent,
clockwise = path.isClockwise(),
segs = path._segments;
path = parent instanceof CompoundPath ? parent : path;
for (var j = segs.length - 1; j >= 0; j--) {
var segment = segs[j],
midPoint = segment.getCurve().getPoint(0.5),
insidePath1 = path !== path1 && path1.contains(midPoint)
&& (clockwise === path1Clockwise || subtract
|| !testOnCurve(path1, midPoint)),
insidePath2 = path !== path2 && path2.contains(midPoint)
&& (clockwise === path2Clockwise
|| !testOnCurve(path2, midPoint));
if (operator(path === path1, insidePath1, insidePath2)) {
segment._invalid = true;
} else {
segments.push(segment);
}
}
}
for (var i = 0, l = segments.length; i < l; i++) {
var segment = segments[i];
if (segment._visited)
continue;
var path = new Path(),
loc = segment._intersection,
intersection = loc && loc.getSegment(true);
if (segment.getPrevious()._invalid)
segment.setHandleIn(intersection
? intersection._handleIn
: new Point(0, 0));
do {
segment._visited = true;
if (segment._invalid && segment._intersection) {
var inter = segment._intersection.getSegment(true);
path.add(new Segment(segment._point, segment._handleIn,
inter._handleOut));
inter._visited = true;
segment = inter;
} else {
path.add(segment.clone());
}
segment = segment.getNext();
} while (segment && !segment._visited && segment !== intersection);
var amount = path._segments.length;
if (amount > 1 && (amount > 2 || !path.isPolygon())) {
path.setClosed(true);
result.addChild(path, true);
} else {
path.remove();
}
}
path1.remove();
path2.remove();
return result.reduce();
}
function testOnCurve(path, point) {
var curves = path.getCurves(),
bounds = path.getBounds();
if (bounds.contains(point)) {
for (var i = 0, l = curves.length; i < l; i++) {
var curve = curves[i];
if (curve.getBounds().contains(point)
&& curve.getParameterOf(point))
return true;
}
}
return false;
}
return {
unite: function(path) {
return computeBoolean(this, path,
function(isPath1, isInPath1, isInPath2) {
return isInPath1 || isInPath2;
});
},
intersect: function(path) {
return computeBoolean(this, path,
function(isPath1, isInPath1, isInPath2) {
return !(isInPath1 || isInPath2);
});
},
subtract: function(path) {
return computeBoolean(this, path,
function(isPath1, isInPath1, isInPath2) {
return isPath1 && isInPath2 || !isPath1 && !isInPath1;
}, true);
},
exclude: function(path) {
return new Group([this.subtract(path), path.subtract(this)]);
},
divide: function(path) {
return new Group([this.subtract(path), this.intersect(path)]);
}
};
});
var TextItem = Item.extend({
_class: 'TextItem',
_boundsSelected: true,
_serializeFields: {
content: null
},
_boundsGetter: 'getBounds',
initialize: function TextItem(arg) {
this._content = '';
this._lines = [];
var hasProps = arg && Base.isPlainObject(arg)
&& arg.x === undefined && arg.y === undefined;
this._initialize(hasProps && arg, !hasProps && Point.read(arguments));
},
_equals: function(item) {
return this._content === item._content;
},
_clone: function _clone(copy) {
copy.setContent(this._content);
return _clone.base.call(this, copy);
},
getContent: function() {
return this._content;
},
setContent: function(content) {
this._content = '' + content;
this._lines = this._content.split(/\r\n|\n|\r/mg);
this._changed(69);
},
isEmpty: function() {
return !this._content;
},
getCharacterStyle: '#getStyle',
setCharacterStyle: '#setStyle',
getParagraphStyle: '#getStyle',
setParagraphStyle: '#setStyle'
});
var PointText = TextItem.extend({
_class: 'PointText',
initialize: function PointText() {
TextItem.apply(this, arguments);
},
clone: function(insert) {
return this._clone(new PointText({ insert: false }), insert);
},
getPoint: function() {
var point = this._matrix.getTranslation();
return new LinkedPoint(point.x, point.y, this, 'setPoint');
},
setPoint: function(point) {
point = Point.read(arguments);
this.translate(point.subtract(this._matrix.getTranslation()));
},
_draw: function(ctx) {
if (!this._content)
return;
this._setStyles(ctx);
var style = this._style,
lines = this._lines,
leading = style.getLeading(),
shadowColor = ctx.shadowColor;
ctx.font = style.getFontStyle();
ctx.textAlign = style.getJustification();
for (var i = 0, l = lines.length; i < l; i++) {
ctx.shadowColor = shadowColor;
var line = lines[i];
if (style.hasFill()) {
ctx.fillText(line, 0, 0);
ctx.shadowColor = 'rgba(0,0,0,0)';
}
if (style.hasStroke())
ctx.strokeText(line, 0, 0);
ctx.translate(0, leading);
}
}
}, new function() {
var measureCtx = null;
return {
_getBounds: function(getter, matrix) {
if (!measureCtx)
measureCtx = CanvasProvider.getContext(1, 1);
var style = this._style,
lines = this._lines,
count = lines.length,
justification = style.getJustification(),
leading = style.getLeading(),
x = 0;
measureCtx.font = style.getFontStyle();
var width = 0;
for (var i = 0; i < count; i++)
width = Math.max(width, measureCtx.measureText(lines[i]).width);
if (justification !== 'left')
x -= width / (justification === 'center' ? 2: 1);
var bounds = new Rectangle(x,
count ? - 0.75 * leading : 0,
width, count * leading);
return matrix ? matrix._transformBounds(bounds, bounds) : bounds;
}
};
});
var Color = Base.extend(new function() {
var types = {
gray: ['gray'],
rgb: ['red', 'green', 'blue'],
hsb: ['hue', 'saturation', 'brightness'],
hsl: ['hue', 'saturation', 'lightness'],
gradient: ['gradient', 'origin', 'destination', 'highlight']
};
var componentParsers = {},
colorCache = {},
colorCtx;
function fromCSS(string) {
var match = string.match(/^#(\w{1,2})(\w{1,2})(\w{1,2})$/),
components;
if (match) {
components = [0, 0, 0];
for (var i = 0; i < 3; i++) {
var value = match[i + 1];
components[i] = parseInt(value.length == 1
? value + value : value, 16) / 255;
}
} else if (match = string.match(/^rgba?\((.*)\)$/)) {
components = match[1].split(',');
for (var i = 0, l = components.length; i < l; i++) {
var value = parseFloat(components[i]);
components[i] = i < 3 ? value / 255 : value;
}
} else {
var cached = colorCache[string];
if (!cached) {
if (!colorCtx) {
colorCtx = CanvasProvider.getContext(1, 1);
colorCtx.globalCompositeOperation = 'copy';
}
colorCtx.fillStyle = 'rgba(0,0,0,0)';
colorCtx.fillStyle = string;
colorCtx.fillRect(0, 0, 1, 1);
var data = colorCtx.getImageData(0, 0, 1, 1).data;
cached = colorCache[string] = [
data[0] / 255,
data[1] / 255,
data[2] / 255
];
}
components = cached.slice();
}
return components;
}
var hsbIndices = [
[0, 3, 1],
[2, 0, 1],
[1, 0, 3],
[1, 2, 0],
[3, 1, 0],
[0, 1, 2]
];
var converters = {
'rgb-hsb': function(r, g, b) {
var max = Math.max(r, g, b),
min = Math.min(r, g, b),
delta = max - min,
h = delta === 0 ? 0
: ( max == r ? (g - b) / delta + (g < b ? 6 : 0)
: max == g ? (b - r) / delta + 2
: (r - g) / delta + 4) * 60;
return [h, max === 0 ? 0 : delta / max, max];
},
'hsb-rgb': function(h, s, b) {
var h = (h / 60) % 6,
i = Math.floor(h),
f = h - i,
i = hsbIndices[i],
v = [
b,
b * (1 - s),
b * (1 - s * f),
b * (1 - s * (1 - f))
];
return [v[i[0]], v[i[1]], v[i[2]]];
},
'rgb-hsl': function(r, g, b) {
var max = Math.max(r, g, b),
min = Math.min(r, g, b),
delta = max - min,
achromatic = delta === 0,
h = achromatic ? 0
: ( max == r ? (g - b) / delta + (g < b ? 6 : 0)
: max == g ? (b - r) / delta + 2
: (r - g) / delta + 4) * 60,
l = (max + min) / 2,
s = achromatic ? 0 : l < 0.5
? delta / (max + min)
: delta / (2 - max - min);
return [h, s, l];
},
'hsl-rgb': function(h, s, l) {
h /= 360;
if (s === 0)
return [l, l, l];
var t3s = [ h + 1 / 3, h, h - 1 / 3 ],
t2 = l < 0.5 ? l * (1 + s) : l + s - l * s,
t1 = 2 * l - t2,
c = [];
for (var i = 0; i < 3; i++) {
var t3 = t3s[i];
if (t3 < 0) t3 += 1;
if (t3 > 1) t3 -= 1;
c[i] = 6 * t3 < 1
? t1 + (t2 - t1) * 6 * t3
: 2 * t3 < 1
? t2
: 3 * t3 < 2
? t1 + (t2 - t1) * ((2 / 3) - t3) * 6
: t1;
}
return c;
},
'rgb-gray': function(r, g, b) {
return [r * 0.2989 + g * 0.587 + b * 0.114];
},
'gray-rgb': function(g) {
return [g, g, g];
},
'gray-hsb': function(g) {
return [0, 0, g];
},
'gray-hsl': function(g) {
return [0, 0, g];
},
'gradient-rgb': function() {
return [];
},
'rgb-gradient': function() {
return [];
}
};
return Base.each(types, function(properties, type) {
componentParsers[type] = [];
Base.each(properties, function(name, index) {
var part = Base.capitalize(name),
hasOverlap = /^(hue|saturation)$/.test(name),
parser = componentParsers[type][index] = name === 'gradient'
? function(value) {
var current = this._components[0];
value = Gradient.read(
Array.isArray(value) ? value : arguments,
0, 0, { readNull: true });
if (current !== value) {
if (current)
current._removeOwner(this);
if (value)
value._addOwner(this);
}
return value;
}
: name === 'hue'
? function(value) {
return isNaN(value) ? 0
: ((value % 360) + 360) % 360;
}
: type === 'gradient'
? function() {
return Point.read(arguments, 0, 0, {
readNull: name === 'highlight',
clone: true
});
}
: function(value) {
return isNaN(value) ? 0
: Math.min(Math.max(value, 0), 1);
};
this['get' + part] = function() {
return this._type === type
|| hasOverlap && /^hs[bl]$/.test(this._type)
? this._components[index]
: this._convert(type)[index];
};
this['set' + part] = function(value) {
if (this._type !== type
&& !(hasOverlap && /^hs[bl]$/.test(this._type))) {
this._components = this._convert(type);
this._properties = types[type];
this._type = type;
}
value = parser.call(this, value);
if (value != null) {
this._components[index] = value;
this._changed();
}
};
}, this);
}, {
_class: 'Color',
_readIndex: true,
initialize: function Color(arg) {
var slice = Array.prototype.slice,
args = arguments,
read = 0,
parse = true,
type,
components,
alpha,
values;
if (Array.isArray(arg)) {
args = arg;
arg = args[0];
}
var argType = arg != null && typeof arg;
if (argType === 'string' && arg in types) {
type = arg;
arg = args[1];
if (Array.isArray(arg)) {
components = arg;
alpha = args[2];
} else {
if (this.__read)
read = 1;
args = slice.call(args, 1);
argType = typeof arg;
}
}
if (!components) {
parse = !(this.__options && this.__options.dontParse);
values = argType === 'number'
? args
: argType === 'object' && arg.length != null
? arg
: null;
if (values) {
if (!type)
type = values.length >= 3
? 'rgb'
: 'gray';
var length = types[type].length;
alpha = values[length];
if (this.__read)
read += values === arguments
? length + (alpha != null ? 1 : 0)
: 1;
if (values.length > length)
values = slice.call(values, 0, length);
} else if (argType === 'string') {
type = 'rgb';
components = fromCSS(arg);
if (components.length === 4) {
alpha = components[3];
components.length--;
}
} else if (argType === 'object') {
if (arg.constructor === Color) {
type = arg._type;
components = arg._components.slice();
alpha = arg._alpha;
if (type === 'gradient') {
for (var i = 1, l = components.length; i < l; i++) {
var point = components[i];
if (point)
components[i] = point.clone();
}
}
} else if (arg.constructor === Gradient) {
type = 'gradient';
values = args;
} else {
type = 'hue' in arg
? 'lightness' in arg
? 'hsl'
: 'hsb'
: 'gradient' in arg || 'stops' in arg
|| 'radial' in arg
? 'gradient'
: 'gray' in arg
? 'gray'
: 'rgb';
var properties = types[type];
parsers = parse && componentParsers[type];
this._components = components = [];
for (var i = 0, l = properties.length; i < l; i++) {
var value = arg[properties[i]];
if (value == null && i === 0 && type === 'gradient'
&& 'stops' in arg) {
value = {
stops: arg.stops,
radial: arg.radial
};
}
if (parse)
value = parsers[i].call(this, value);
if (value != null)
components[i] = value;
}
alpha = arg.alpha;
}
}
if (this.__read && type)
read = 1;
}
this._type = type || 'rgb';
if (type === 'gradient')
this._id = Color._id = (Color._id || 0) + 1;
if (!components) {
this._components = components = [];
var parsers = componentParsers[this._type];
for (var i = 0, l = parsers.length; i < l; i++) {
var value = values && values[i];
if (parse)
value = parsers[i].call(this, value);
if (value != null)
components[i] = value;
}
}
this._components = components;
this._properties = types[this._type];
this._alpha = alpha;
if (this.__read)
this.__read = read;
},
_serialize: function(options, dictionary) {
var components = this.getComponents();
return Base.serialize(
/^(gray|rgb)$/.test(this._type)
? components
: [this._type].concat(components),
options, true, dictionary);
},
_changed: function() {
this._canvasStyle = null;
if (this._owner)
this._owner._changed(17);
},
_convert: function(type) {
var converter;
return this._type === type
? this._components.slice()
: (converter = converters[this._type + '-' + type])
? converter.apply(this, this._components)
: converters['rgb-' + type].apply(this,
converters[this._type + '-rgb'].apply(this,
this._components));
},
convert: function(type) {
return new Color(type, this._convert(type), this._alpha);
},
getType: function() {
return this._type;
},
setType: function(type) {
this._components = this._convert(type);
this._properties = types[type];
this._type = type;
},
getComponents: function() {
var components = this._components.slice();
if (this._alpha != null)
components.push(this._alpha);
return components;
},
getAlpha: function() {
return this._alpha != null ? this._alpha : 1;
},
setAlpha: function(alpha) {
this._alpha = alpha == null ? null : Math.min(Math.max(alpha, 0), 1);
this._changed();
},
hasAlpha: function() {
return this._alpha != null;
},
equals: function(color) {
if (Base.isPlainValue(color))
color = Color.read(arguments);
return color === this || color && this._class === color._class
&& this._type === color._type
&& this._alpha === color._alpha
&& Base.equals(this._components, color._components)
|| false;
},
toString: function() {
var properties = this._properties,
parts = [],
isGradient = this._type === 'gradient',
f = Formatter.instance;
for (var i = 0, l = properties.length; i < l; i++) {
var value = this._components[i];
if (value != null)
parts.push(properties[i] + ': '
+ (isGradient ? value : f.number(value)));
}
if (this._alpha != null)
parts.push('alpha: ' + f.number(this._alpha));
return '{ ' + parts.join(', ') + ' }';
},
toCSS: function(hex) {
var components = this._convert('rgb'),
alpha = hex || this._alpha == null ? 1 : this._alpha;
components = [
Math.round(components[0] * 255),
Math.round(components[1] * 255),
Math.round(components[2] * 255)
];
if (alpha < 1)
components.push(alpha);
return hex
? '#' + ((1 << 24) + (components[0] << 16)
+ (components[1] << 8)
+ components[2]).toString(16).slice(1)
: (components.length == 4 ? 'rgba(' : 'rgb(')
+ components.join(',') + ')';
},
toCanvasStyle: function(ctx) {
if (this._canvasStyle)
return this._canvasStyle;
if (this._type !== 'gradient')
return this._canvasStyle = this.toCSS();
var components = this._components,
gradient = components[0],
stops = gradient._stops,
origin = components[1],
destination = components[2],
canvasGradient;
if (gradient._radial) {
var radius = destination.getDistance(origin),
highlight = components[3];
if (highlight) {
var vector = highlight.subtract(origin);
if (vector.getLength() > radius)
highlight = origin.add(vector.normalize(radius - 0.1));
}
var start = highlight || origin;
canvasGradient = ctx.createRadialGradient(start.x, start.y,
0, origin.x, origin.y, radius);
} else {
canvasGradient = ctx.createLinearGradient(origin.x, origin.y,
destination.x, destination.y);
}
for (var i = 0, l = stops.length; i < l; i++) {
var stop = stops[i];
canvasGradient.addColorStop(stop._rampPoint,
stop._color.toCanvasStyle());
}
return this._canvasStyle = canvasGradient;
},
transform: function(matrix) {
if (this._type === 'gradient') {
var components = this._components;
for (var i = 1, l = components.length; i < l; i++) {
var point = components[i];
matrix._transformPoint(point, point, true);
}
this._changed();
}
},
statics: {
_types: types,
random: function() {
var random = Math.random;
return new Color(random(), random(), random());
}
}
});
}, new function() {
function clamp(value, hue) {
return value < 0
? 0
: hue && value > 360
? 360
: !hue && value > 1
? 1
: value;
}
var operators = {
add: function(a, b, hue) {
return clamp(a + b, hue);
},
subtract: function(a, b, hue) {
return clamp(a - b, hue);
},
multiply: function(a, b, hue) {
return clamp(a * b, hue);
},
divide: function(a, b, hue) {
return clamp(a / b, hue);
}
};
return Base.each(operators, function(operator, name) {
var options = { dontParse: /^(multiply|divide)$/.test(name) };
this[name] = function(color) {
color = Color.read(arguments, 0, 0, options);
var type = this._type,
properties = this._properties,
components1 = this._components,
components2 = color._convert(type);
for (var i = 0, l = components1.length; i < l; i++)
components2[i] = operator(components1[i], components2[i],
properties[i] === 'hue');
return new Color(type, components2,
this._alpha != null
? operator(this._alpha, color.getAlpha())
: null);
};
}, {
});
});
Base.each(Color._types, function(properties, type) {
var ctor = this[Base.capitalize(type) + 'Color'] = function(arg) {
var argType = arg != null && typeof arg,
components = argType === 'object' && arg.length != null
? arg
: argType === 'string'
? null
: arguments;
return components
? new Color(type, components)
: new Color(arg);
};
if (type.length == 3) {
var acronym = type.toUpperCase();
Color[acronym] = this[acronym + 'Color'] = ctor;
}
}, Base.exports);
var Gradient = Base.extend({
_class: 'Gradient',
initialize: function Gradient(stops, radial) {
this._id = Gradient._id = (Gradient._id || 0) + 1;
if (stops && this._set(stops))
stops = radial = null;
if (!this._stops)
this.setStops(stops || ['white', 'black']);
if (this._radial == null)
this.setRadial(typeof radial === 'string' && radial === 'radial'
|| radial || false);
},
_serialize: function(options, dictionary) {
return dictionary.add(this, function() {
return Base.serialize([this._stops, this._radial],
options, true, dictionary);
});
},
_changed: function() {
for (var i = 0, l = this._owners && this._owners.length; i < l; i++)
this._owners[i]._changed();
},
_addOwner: function(color) {
if (!this._owners)
this._owners = [];
this._owners.push(color);
},
_removeOwner: function(color) {
var index = this._owners ? this._owners.indexOf(color) : -1;
if (index != -1) {
this._owners.splice(index, 1);
if (this._owners.length === 0)
delete this._owners;
}
},
clone: function() {
var stops = [];
for (var i = 0, l = this._stops.length; i < l; i++)
stops[i] = this._stops[i].clone();
return new Gradient(stops);
},
getStops: function() {
return this._stops;
},
setStops: function(stops) {
if (this.stops) {
for (var i = 0, l = this._stops.length; i < l; i++)
delete this._stops[i]._owner;
}
if (stops.length < 2)
throw new Error(
'Gradient stop list needs to contain at least two stops.');
this._stops = GradientStop.readAll(stops, 0, false, true);
for (var i = 0, l = this._stops.length; i < l; i++) {
var stop = this._stops[i];
stop._owner = this;
if (stop._defaultRamp)
stop.setRampPoint(i / (l - 1));
}
this._changed();
},
getRadial: function() {
return this._radial;
},
setRadial: function(radial) {
this._radial = radial;
this._changed();
},
equals: function(gradient) {
if (gradient === this)
return true;
if (gradient && this._class === gradient._class
&& this._stops.length === gradient._stops.length) {
for (var i = 0, l = this._stops.length; i < l; i++) {
if (!this._stops[i].equals(gradient._stops[i]))
return false;
}
return true;
}
return false;
}
});
var GradientStop = Base.extend({
_class: 'GradientStop',
initialize: function GradientStop(arg0, arg1) {
if (arg0) {
var color, rampPoint;
if (arg1 === undefined && Array.isArray(arg0)) {
color = arg0[0];
rampPoint = arg0[1];
} else if (arg0.color) {
color = arg0.color;
rampPoint = arg0.rampPoint;
} else {
color = arg0;
rampPoint = arg1;
}
this.setColor(color);
this.setRampPoint(rampPoint);
}
},
clone: function() {
return new GradientStop(this._color.clone(), this._rampPoint);
},
_serialize: function(options, dictionary) {
return Base.serialize([this._color, this._rampPoint], options, true,
dictionary);
},
_changed: function() {
if (this._owner)
this._owner._changed(17);
},
getRampPoint: function() {
return this._rampPoint;
},
setRampPoint: function(rampPoint) {
this._defaultRamp = rampPoint == null;
this._rampPoint = rampPoint || 0;
this._changed();
},
getColor: function() {
return this._color;
},
setColor: function(color) {
this._color = Color.read(arguments);
if (this._color === color)
this._color = color.clone();
this._color._owner = this;
this._changed();
},
equals: function(stop) {
return stop === this || stop && this._class === stop._class
&& this._color.equals(stop._color)
&& this._rampPoint == stop._rampPoint
|| false;
}
});
var Style = Base.extend(new function() {
var defaults = {
fillColor: undefined,
strokeColor: undefined,
strokeWidth: 1,
strokeCap: 'butt',
strokeJoin: 'miter',
miterLimit: 10,
dashOffset: 0,
dashArray: [],
windingRule: 'nonzero',
shadowColor: undefined,
shadowBlur: 0,
shadowOffset: new Point(),
selectedColor: undefined,
font: 'sans-serif',
fontSize: 12,
leading: null,
justification: 'left'
};
var flags = {
strokeWidth: 25,
strokeCap: 25,
strokeJoin: 25,
miterLimit: 25,
font: 5,
fontSize: 5,
leading: 5,
justification: 5
};
var item = {},
fields = {
_defaults: defaults,
_textDefaults: new Base(defaults, {
fillColor: new Color()
})
};
Base.each(defaults, function(value, key) {
var isColor = /Color$/.test(key),
part = Base.capitalize(key),
flag = flags[key],
set = 'set' + part,
get = 'get' + part;
fields[set] = function(value) {
var children = this._item && this._item._children;
if (children && children.length > 0
&& this._item._type !== 'compound-path') {
for (var i = 0, l = children.length; i < l; i++)
children[i]._style[set](value);
} else {
var old = this._values[key];
if (old != value) {
if (isColor) {
if (old)
delete old._owner;
if (value && value.constructor === Color) {
if (value._owner)
value = value.clone();
value._owner = this._item;
}
}
this._values[key] = value;
if (this._item)
this._item._changed(flag || 17);
}
}
};
fields[get] = function() {
var value,
children = this._item && this._item._children;
if (!children || children.length === 0 || arguments[0]
|| this._item._type === 'compound-path') {
var value = this._values[key];
if (value === undefined) {
value = this._defaults[key];
if (value && value.clone)
value = value.clone();
this._values[key] = value;
} else if (isColor && !(value && value.constructor === Color)) {
this._values[key] = value = Color.read(
[value], 0, 0, { readNull: true, clone: true });
if (value)
value._owner = this._item;
}
return value;
}
for (var i = 0, l = children.length; i < l; i++) {
var childValue = children[i]._style[get]();
if (i === 0) {
value = childValue;
} else if (!Base.equals(value, childValue)) {
return undefined;
}
}
return value;
};
item[get] = function() {
return this._style[get]();
};
item[set] = function(value) {
this._style[set](value);
};
});
Item.inject(item);
return fields;
}, {
_class: 'Style',
initialize: function Style(style, _item) {
this._values = {};
this._item = _item;
if (_item instanceof TextItem)
this._defaults = this._textDefaults;
if (style)
this.set(style);
},
set: function(style) {
var isStyle = style instanceof Style,
values = isStyle ? style._values : style;
if (values) {
for (var key in values) {
if (key in this._defaults) {
var value = values[key];
this[key] = value && isStyle && value.clone
? value.clone() : value;
}
}
}
},
equals: function(style) {
return style === this || style && this._class === style._class
&& Base.equals(this._values, style._values)
|| false;
},
hasFill: function() {
return !!this.getFillColor();
},
hasStroke: function() {
return !!this.getStrokeColor() && this.getStrokeWidth() > 0;
},
hasShadow: function() {
return !!this.getShadowColor() && this.getShadowBlur() > 0;
},
getLeading: function getLeading() {
var leading = getLeading.base.call(this);
return leading != null ? leading : this.getFontSize() * 1.2;
},
getFontStyle: function() {
var size = this.getFontSize();
return size + (/[a-z]/i.test(size + '') ? ' ' : 'px ') + this.getFont();
}
});
var DomElement = new function() {
var special = /^(checked|value|selected|disabled)$/i,
translated = { text: 'textContent', html: 'innerHTML' },
unitless = { lineHeight: 1, zoom: 1, zIndex: 1, opacity: 1 };
function create(nodes, parent) {
var res = [];
for (var i = 0, l = nodes && nodes.length; i < l;) {
var el = nodes[i++];
if (typeof el === 'string') {
el = document.createElement(el);
} else if (!el || !el.nodeType) {
continue;
}
if (Base.isPlainObject(nodes[i]))
DomElement.set(el, nodes[i++]);
if (Array.isArray(nodes[i]))
create(nodes[i++], el);
if (parent)
parent.appendChild(el);
res.push(el);
}
return res;
}
return {
create: function(nodes, parent) {
var isArray = Array.isArray(nodes),
res = create(isArray ? nodes : arguments, isArray ? parent : null);
return res.length == 1 ? res[0] : res;
},
find: function(selector, root) {
return (root || document).querySelector(selector);
},
findAll: function(selector, root) {
return (root || document).querySelectorAll(selector);
},
get: function(el, key) {
return el
? special.test(key)
? key === 'value' || typeof el[key] !== 'string'
? el[key]
: true
: key in translated
? el[translated[key]]
: el.getAttribute(key)
: null;
},
set: function(el, key, value) {
if (typeof key !== 'string') {
for (var name in key)
if (key.hasOwnProperty(name))
this.set(el, name, key[name]);
} else if (!el || value === undefined) {
return el;
} else if (special.test(key)) {
el[key] = value;
} else if (key in translated) {
el[translated[key]] = value;
} else if (key === 'style') {
this.setStyle(el, value);
} else if (key === 'events') {
DomEvent.add(el, value);
} else {
el.setAttribute(key, value);
}
return el;
},
getStyles: function(el) {
var doc = el && el.nodeType !== 9 ? el.ownerDocument : el,
view = doc && doc.defaultView;
return view && view.getComputedStyle(el, '');
},
getStyle: function(el, key) {
return el && el.style[key] || this.getStyles(el)[key] || null;
},
setStyle: function(el, key, value) {
if (typeof key !== 'string') {
for (var name in key)
if (key.hasOwnProperty(name))
this.setStyle(el, name, key[name]);
} else {
if (/^-?[\d\.]+$/.test(value) && !(key in unitless))
value += 'px';
el.style[key] = value;
}
return el;
},
hasClass: function(el, cls) {
return new RegExp('\\s*' + cls + '\\s*').test(el.className);
},
addClass: function(el, cls) {
el.className = (el.className + ' ' + cls).trim();
},
removeClass: function(el, cls) {
el.className = el.className.replace(
new RegExp('\\s*' + cls + '\\s*'), ' ').trim();
},
remove: function(el) {
if (el.parentNode)
el.parentNode.removeChild(el);
},
removeChildren: function(el) {
while (el.firstChild)
el.removeChild(el.firstChild);
},
getBounds: function(el, viewport) {
var doc = el.ownerDocument,
body = doc.body,
html = doc.documentElement,
rect;
try {
rect = el.getBoundingClientRect();
} catch (e) {
rect = { left: 0, top: 0, width: 0, height: 0 };
}
var x = rect.left - (html.clientLeft || body.clientLeft || 0),
y = rect.top - (html.clientTop || body.clientTop || 0);
if (!viewport) {
var view = doc.defaultView;
x += view.pageXOffset || html.scrollLeft || body.scrollLeft;
y += view.pageYOffset || html.scrollTop || body.scrollTop;
}
return new Rectangle(x, y, rect.width, rect.height);
},
getViewportBounds: function(el) {
var doc = el.ownerDocument,
view = doc.defaultView,
html = doc.documentElement;
return new Rectangle(0, 0,
view.innerWidth || html.clientWidth,
view.innerHeight || html.clientHeight
);
},
getOffset: function(el, viewport) {
return this.getBounds(el, viewport).getPoint();
},
getSize: function(el) {
return this.getBounds(el, true).getSize();
},
isInvisible: function(el) {
return this.getSize(el).equals(new Size(0, 0));
},
isInView: function(el) {
return !this.isInvisible(el) && this.getViewportBounds(el).intersects(
this.getBounds(el, true));
},
getPrefixValue: function(el, name) {
var value = el[name],
prefixes = ['webkit', 'moz', 'ms', 'o'],
suffix = name[0].toUpperCase() + name.substring(1);
for (var i = 0; i < 4 && value == null; i++)
value = el[prefixes[i] + suffix];
return value;
}
};
};
var DomEvent = {
add: function(el, events) {
for (var type in events) {
var func = events[type];
if (el.addEventListener) {
el.addEventListener(type, func, false);
} else if (el.attachEvent) {
el.attachEvent('on' + type, func.bound = function() {
func.call(el, window.event);
});
}
}
},
remove: function(el, events) {
for (var type in events) {
var func = events[type];
if (el.removeEventListener) {
el.removeEventListener(type, func, false);
} else if (el.detachEvent) {
el.detachEvent('on' + type, func.bound);
}
}
},
getPoint: function(event) {
var pos = event.targetTouches
? event.targetTouches.length
? event.targetTouches[0]
: event.changedTouches[0]
: event;
return new Point(
pos.pageX || pos.clientX + document.documentElement.scrollLeft,
pos.pageY || pos.clientY + document.documentElement.scrollTop
);
},
getTarget: function(event) {
return event.target || event.srcElement;
},
getOffset: function(event, target) {
return DomEvent.getPoint(event).subtract(DomElement.getOffset(
target || DomEvent.getTarget(event)));
},
preventDefault: function(event) {
if (event.preventDefault) {
event.preventDefault();
} else {
event.returnValue = false;
}
},
stopPropagation: function(event) {
if (event.stopPropagation) {
event.stopPropagation();
} else {
event.cancelBubble = true;
}
},
stop: function(event) {
DomEvent.stopPropagation(event);
DomEvent.preventDefault(event);
}
};
DomEvent.requestAnimationFrame = new function() {
var nativeRequest = DomElement.getPrefixValue(window,
'requestAnimationFrame'),
requested = false,
callbacks = [],
focused = true,
timer;
DomEvent.add(window, {
focus: function() {
focused = true;
},
blur: function() {
focused = false;
}
});
function handleCallbacks() {
for (var i = callbacks.length - 1; i >= 0; i--) {
var entry = callbacks[i],
func = entry[0],
el = entry[1];
if (!el || (PaperScope.getAttribute(el, 'keepalive') == 'true'
|| focused) && DomElement.isInView(el)) {
callbacks.splice(i, 1);
func();
}
}
if (nativeRequest) {
if (callbacks.length) {
nativeRequest(handleCallbacks);
} else {
requested = false;
}
}
}
return function(callback, element) {
callbacks.push([callback, element]);
if (nativeRequest) {
if (!requested) {
nativeRequest(handleCallbacks);
requested = true;
}
} else if (!timer) {
timer = setInterval(handleCallbacks, 1000 / 60);
}
};
};
var View = Base.extend(Callback, {
_class: 'View',
initialize: function View(element) {
this._scope = paper;
this._project = paper.project;
this._element = element;
var size;
this._id = element.getAttribute('id');
if (this._id == null)
element.setAttribute('id', this._id = 'view-' + View._id++);
DomEvent.add(element, this._viewHandlers);
if (PaperScope.hasAttribute(element, 'resize')) {
var offset = DomElement.getOffset(element, true),
that = this;
size = DomElement.getViewportBounds(element)
.getSize().subtract(offset);
this._windowHandlers = {
resize: function() {
if (!DomElement.isInvisible(element))
offset = DomElement.getOffset(element, true);
that.setViewSize(DomElement.getViewportBounds(element)
.getSize().subtract(offset));
}
};
DomEvent.add(window, this._windowHandlers);
} else {
size = DomElement.getSize(element);
if (size.isNaN() || size.isZero())
size = new Size(parseInt(element.getAttribute('width'), 10),
parseInt(element.getAttribute('height'), 10));
}
this._setViewSize(size);
if (PaperScope.hasAttribute(element, 'stats')
&& typeof Stats !== 'undefined') {
this._stats = new Stats();
var stats = this._stats.domElement,
style = stats.style,
offset = DomElement.getOffset(element);
style.position = 'absolute';
style.left = offset.x + 'px';
style.top = offset.y + 'px';
document.body.appendChild(stats);
}
View._views.push(this);
View._viewsById[this._id] = this;
this._viewSize = size;
(this._matrix = new Matrix())._owner = this;
this._zoom = 1;
if (!View._focused)
View._focused = this;
this._frameItems = {};
this._frameItemCount = 0;
},
remove: function() {
if (!this._project)
return false;
if (View._focused == this)
View._focused = null;
View._views.splice(View._views.indexOf(this), 1);
delete View._viewsById[this._id];
if (this._project.view == this)
this._project.view = null;
DomEvent.remove(this._element, this._viewHandlers);
DomEvent.remove(window, this._windowHandlers);
this._element = this._project = null;
this.detach('frame');
this._frameItems = {};
return true;
},
_events: {
onFrame: {
install: function() {
this._animate = true;
if (!this._requested)
this._requestFrame();
},
uninstall: function() {
this._animate = false;
}
},
onResize: {}
},
_animate: false,
_time: 0,
_count: 0,
_requestFrame: function() {
var that = this;
DomEvent.requestAnimationFrame(function() {
that._requested = false;
if (!that._animate)
return;
that._requestFrame();
that._handleFrame();
}, this._element);
this._requested = true;
},
_handleFrame: function() {
paper = this._scope;
var now = Date.now() / 1000,
delta = this._before ? now - this._before : 0;
this._before = now;
this._handlingFrame = true;
this.fire('frame', new Base({
delta: delta,
time: this._time += delta,
count: this._count++
}));
if (this._stats)
this._stats.update();
this._handlingFrame = false;
this.draw(true);
},
_animateItem: function(item, animate) {
var items = this._frameItems;
if (animate) {
items[item._id] = {
item: item,
time: 0,
count: 0
};
if (++this._frameItemCount === 1)
this.attach('frame', this._handleFrameItems);
} else {
delete items[item._id];
if (--this._frameItemCount === 0) {
this.detach('frame', this._handleFrameItems);
}
}
},
_handleFrameItems: function(event) {
for (var i in this._frameItems) {
var entry = this._frameItems[i];
entry.item.fire('frame', new Base(event, {
time: entry.time += event.delta,
count: entry.count++
}));
}
},
_redraw: function() {
this._project._needsRedraw = true;
if (this._handlingFrame)
return;
if (this._animate) {
this._handleFrame();
} else {
this.draw();
}
},
_changed: function(flags) {
if (flags & 1)
this._project._needsRedraw = true;
},
_transform: function(matrix) {
this._matrix.concatenate(matrix);
this._bounds = null;
this._redraw();
},
getElement: function() {
return this._element;
},
getViewSize: function() {
var size = this._viewSize;
return new LinkedSize(size.width, size.height, this, 'setViewSize');
},
setViewSize: function(size) {
size = Size.read(arguments);
var delta = size.subtract(this._viewSize);
if (delta.isZero())
return;
this._viewSize.set(size.width, size.height);
this._setViewSize(size);
this._bounds = null;
this.fire('resize', {
size: size,
delta: delta
});
this._redraw();
},
_setViewSize: function(size) {
var element = this._element;
element.width = size.width;
element.height = size.height;
},
getBounds: function() {
if (!this._bounds)
this._bounds = this._matrix.inverted()._transformBounds(
new Rectangle(new Point(), this._viewSize));
return this._bounds;
},
getSize: function() {
return this.getBounds().getSize(arguments[0]);
},
getCenter: function() {
return this.getBounds().getCenter(arguments[0]);
},
setCenter: function(center) {
center = Point.read(arguments);
this.scrollBy(center.subtract(this.getCenter()));
},
getZoom: function() {
return this._zoom;
},
setZoom: function(zoom) {
this._transform(new Matrix().scale(zoom / this._zoom,
this.getCenter()));
this._zoom = zoom;
},
isVisible: function() {
return DomElement.isInView(this._element);
},
scrollBy: function() {
this._transform(new Matrix().translate(Point.read(arguments).negate()));
},
projectToView: function() {
return this._matrix._transformPoint(Point.read(arguments));
},
viewToProject: function() {
return this._matrix._inverseTransform(Point.read(arguments));
},
}, {
statics: {
_views: [],
_viewsById: {},
_id: 0,
create: function(element) {
if (typeof element === 'string')
element = document.getElementById(element);
return new CanvasView(element);
}
}
}, new function() {
var tool,
prevFocus,
tempFocus,
dragging = false;
function getView(event) {
var target = DomEvent.getTarget(event);
return target.getAttribute && View._viewsById[target.getAttribute('id')];
}
function viewToProject(view, event) {
return view.viewToProject(DomEvent.getOffset(event, view._element));
}
function updateFocus() {
if (!View._focused || !View._focused.isVisible()) {
for (var i = 0, l = View._views.length; i < l; i++) {
var view = View._views[i];
if (view && view.isVisible()) {
View._focused = tempFocus = view;
break;
}
}
}
}
function mousedown(event) {
var view = View._focused = getView(event),
point = viewToProject(view, event);
dragging = true;
if (view._onMouseDown)
view._onMouseDown(event, point);
if (tool = view._scope._tool)
tool._onHandleEvent('mousedown', point, event);
view.draw(true);
}
function mousemove(event) {
var view;
if (!dragging) {
view = getView(event);
if (view) {
prevFocus = View._focused;
View._focused = tempFocus = view;
} else if (tempFocus && tempFocus == View._focused) {
View._focused = prevFocus;
updateFocus();
}
}
if (!(view = view || View._focused))
return;
var point = event && viewToProject(view, event);
if (view._onMouseMove)
view._onMouseMove(event, point);
if (tool = view._scope._tool) {
if (tool._onHandleEvent(dragging && tool.responds('mousedrag')
? 'mousedrag' : 'mousemove', point, event))
DomEvent.stop(event);
}
view.draw(true);
}
function mouseup(event) {
var view = View._focused;
if (!view || !dragging)
return;
var point = viewToProject(view, event);
curPoint = null;
dragging = false;
if (view._onMouseUp)
view._onMouseUp(event, point);
if (tool && tool._onHandleEvent('mouseup', point, event))
DomEvent.stop(event);
view.draw(true);
}
function selectstart(event) {
if (dragging)
DomEvent.stop(event);
}
DomEvent.add(document, {
mousemove: mousemove,
mouseup: mouseup,
touchmove: mousemove,
touchend: mouseup,
selectstart: selectstart,
scroll: updateFocus
});
DomEvent.add(window, {
load: updateFocus
});
return {
_viewHandlers: {
mousedown: mousedown,
touchstart: mousedown,
selectstart: selectstart
},
statics: {
updateFocus: updateFocus
}
};
});
var CanvasView = View.extend({
_class: 'CanvasView',
initialize: function CanvasView(canvas) {
if (!(canvas instanceof HTMLCanvasElement)) {
var size = Size.read(arguments);
if (size.isZero())
throw new Error(
'Cannot create CanvasView with the provided argument: '
+ canvas);
canvas = CanvasProvider.getCanvas(size);
}
this._context = canvas.getContext('2d');
this._eventCounters = {};
this._ratio = 1;
if (PaperScope.getAttribute(canvas, 'hidpi') !== 'off') {
var deviceRatio = window.devicePixelRatio || 1,
backingStoreRatio = DomElement.getPrefixValue(this._context,
'backingStorePixelRatio') || 1;
this._ratio = deviceRatio / backingStoreRatio;
}
View.call(this, canvas);
},
_setViewSize: function(size) {
var width = size.width,
height = size.height,
ratio = this._ratio,
element = this._element,
style = element.style;
element.width = width * ratio;
element.height = height * ratio;
if (ratio !== 1) {
style.width = width + 'px';
style.height = height + 'px';
this._context.scale(ratio, ratio);
}
},
draw: function(checkRedraw) {
if (checkRedraw && !this._project._needsRedraw)
return false;
var ctx = this._context,
size = this._viewSize;
ctx.clearRect(0, 0, size.width + 1, size.height + 1);
this._project.draw(ctx, this._matrix, this._ratio);
this._project._needsRedraw = false;
return true;
}
}, new function() {
var downPoint,
lastPoint,
overPoint,
downItem,
lastItem,
overItem,
hasDrag,
doubleClick,
clickTime;
function callEvent(type, event, point, target, lastPoint, bubble) {
var item = target,
mouseEvent;
while (item) {
if (item.responds(type)) {
if (!mouseEvent)
mouseEvent = new MouseEvent(type, event, point, target,
lastPoint ? point.subtract(lastPoint) : null);
if (item.fire(type, mouseEvent)
&& (!bubble || mouseEvent._stopped))
return false;
}
item = item.getParent();
}
return true;
}
function handleEvent(view, type, event, point, lastPoint) {
if (view._eventCounters[type]) {
var project = view._project,
hit = project.hitTest(point, {
tolerance: project.options.hitTolerance || 0,
fill: true,
stroke: true
}),
item = hit && hit.item;
if (item) {
if (type === 'mousemove' && item != overItem)
lastPoint = point;
if (type !== 'mousemove' || !hasDrag)
callEvent(type, event, point, item, lastPoint);
return item;
}
}
}
return {
_onMouseDown: function(event, point) {
var item = handleEvent(this, 'mousedown', event, point);
doubleClick = lastItem == item && (Date.now() - clickTime < 300);
downItem = lastItem = item;
downPoint = lastPoint = overPoint = point;
hasDrag = downItem && downItem.responds('mousedrag');
},
_onMouseUp: function(event, point) {
var item = handleEvent(this, 'mouseup', event, point);
if (hasDrag) {
if (lastPoint && !lastPoint.equals(point))
callEvent('mousedrag', event, point, downItem, lastPoint);
if (item != downItem) {
overPoint = point;
callEvent('mousemove', event, point, item, overPoint);
}
}
if (item === downItem) {
clickTime = Date.now();
if (!doubleClick
|| callEvent('doubleclick', event, downPoint, item))
callEvent('click', event, downPoint, item);
doubleClick = false;
}
downItem = null;
hasDrag = false;
},
_onMouseMove: function(event, point) {
if (downItem)
callEvent('mousedrag', event, point, downItem, lastPoint);
var item = handleEvent(this, 'mousemove', event, point, overPoint);
lastPoint = overPoint = point;
if (item !== overItem) {
callEvent('mouseleave', event, point, overItem);
overItem = item;
callEvent('mouseenter', event, point, item);
}
}
};
});
var Event = Base.extend({
_class: 'Event',
initialize: function Event(event) {
this.event = event;
},
preventDefault: function() {
this._prevented = true;
DomEvent.preventDefault(this.event);
},
stopPropagation: function() {
this._stopped = true;
DomEvent.stopPropagation(this.event);
},
stop: function() {
this.stopPropagation();
this.preventDefault();
},
getModifiers: function() {
return Key.modifiers;
}
});
var KeyEvent = Event.extend({
_class: 'KeyEvent',
initialize: function KeyEvent(down, key, character, event) {
Event.call(this, event);
this.type = down ? 'keydown' : 'keyup';
this.key = key;
this.character = character;
},
toString: function() {
return "{ type: '" + this.type
+ "', key: '" + this.key
+ "', character: '" + this.character
+ "', modifiers: " + this.getModifiers()
+ " }";
}
});
var Key = new function() {
var specialKeys = {
8: 'backspace',
9: 'tab',
13: 'enter',
16: 'shift',
17: 'control',
18: 'option',
19: 'pause',
20: 'caps-lock',
27: 'escape',
32: 'space',
35: 'end',
36: 'home',
37: 'left',
38: 'up',
39: 'right',
40: 'down',
46: 'delete',
91: 'command',
93: 'command',
224: 'command'
},
specialChars = {
9: true,
13: true,
32: true
},
modifiers = new Base({
shift: false,
control: false,
option: false,
command: false,
capsLock: false,
space: false
}),
charCodeMap = {},
keyMap = {},
downCode;
function handleKey(down, keyCode, charCode, event) {
var character = charCode ? String.fromCharCode(charCode) : '',
specialKey = specialKeys[keyCode],
key = specialKey || character.toLowerCase(),
type = down ? 'keydown' : 'keyup',
view = View._focused,
scope = view && view.isVisible() && view._scope,
tool = scope && scope._tool,
name;
keyMap[key] = down;
if (specialKey && (name = Base.camelize(specialKey)) in modifiers)
modifiers[name] = down;
if (down) {
charCodeMap[keyCode] = charCode;
} else {
delete charCodeMap[keyCode];
}
if (tool && tool.responds(type)) {
paper = scope;
tool.fire(type, new KeyEvent(down, key, character, event));
if (view)
view.draw(true);
}
}
DomEvent.add(document, {
keydown: function(event) {
var code = event.which || event.keyCode;
if (code in specialKeys) {
handleKey(true, code, code in specialChars ? code : 0, event);
} else {
downCode = code;
}
},
keypress: function(event) {
if (downCode != null) {
handleKey(true, downCode, event.which || event.keyCode, event);
downCode = null;
}
},
keyup: function(event) {
var code = event.which || event.keyCode;
if (code in charCodeMap)
handleKey(false, code, charCodeMap[code], event);
}
});
DomEvent.add(window, {
blur: function(event) {
for (var code in charCodeMap)
handleKey(false, code, charCodeMap[code], event);
}
});
return {
modifiers: modifiers,
isDown: function(key) {
return !!keyMap[key];
}
};
};
var MouseEvent = Event.extend({
_class: 'MouseEvent',
initialize: function MouseEvent(type, event, point, target, delta) {
Event.call(this, event);
this.type = type;
this.point = point;
this.target = target;
this.delta = delta;
},
toString: function() {
return "{ type: '" + this.type
+ "', point: " + this.point
+ ', target: ' + this.target
+ (this.delta ? ', delta: ' + this.delta : '')
+ ', modifiers: ' + this.getModifiers()
+ ' }';
}
});
Base.extend(Callback, {
_class: 'Palette',
_events: [ 'onChange' ],
initialize: function Palette(title, components, values) {
var parent = DomElement.find('.palettejs-panel')
|| DomElement.find('body').appendChild(
DomElement.create('div', { 'class': 'palettejs-panel' }));
this._element = parent.appendChild(
DomElement.create('table', { 'class': 'palettejs-pane' }));
this._title = title;
if (!values)
values = {};
for (var name in (this.components = components)) {
var component = components[name];
if (!(component instanceof Component)) {
if (component.value == null)
component.value = values[name];
component.name = name;
component = components[name] = new Component(component);
}
this._element.appendChild(component._element);
component._palette = this;
if (values[name] === undefined)
values[name] = component.value;
}
this.values = Base.each(values, function(value, name) {
var component = components[name];
if (component) {
Base.define(values, name, {
enumerable: true,
configurable: true,
get: function() {
return component._value;
},
set: function(val) {
component.setValue(val);
}
});
}
});
if (window.paper)
paper.palettes.push(this);
},
reset: function() {
for (var i in this.components)
this.components[i].reset();
},
remove: function() {
DomElement.remove(this._element);
}
});
var Component = Base.extend(Callback, {
_class: 'Component',
_events: [ 'onChange', 'onClick' ],
_types: {
'boolean': {
type: 'checkbox',
value: 'checked'
},
string: {
type: 'text'
},
number: {
type: 'number',
number: true
},
button: {
type: 'button'
},
text: {
tag: 'div',
value: 'text'
},
slider: {
type: 'range',
number: true
},
list: {
tag: 'select',
setOptions: function() {
DomElement.removeChildren(this._input);
DomElement.create(Base.each(this._options, function(option) {
this.push('option', { value: option, text: option });
}, []), this._input);
}
},
color: {
type: 'color',
getValue: function(value) {
return new Color(value);
},
setValue: function(value) {
return new Color(value).toCSS(
DomElement.get(this._input, 'type') === 'color');
}
}
},
initialize: function Component(obj) {
this._id = Component._id = (Component._id || 0) + 1;
this._type = obj.type in this._types
? obj.type
: 'options' in obj
? 'list'
: 'onClick' in obj
? 'button'
: typeof obj.value;
this._meta = this._types[this._type] || { type: this._type };
var that = this,
id = 'component-' + this._id;
this._dontFire = true;
this._input = DomElement.create(this._meta.tag || 'input', {
id: id,
type: this._meta.type,
events: {
change: function() {
that.setValue(
DomElement.get(this, that._meta.value || 'value'));
},
click: function() {
that.fire('click');
}
}
});
this.attach('change', function(value) {
if (!this._dontFire)
this._palette.fire('change', this, this.name, value);
});
this._element = DomElement.create('tr', [
'td', [this._label = DomElement.create('label', { 'for': id })],
'td', [this._input]
]);
Base.each(obj, function(value, key) {
this[key] = value;
}, this);
this._defaultValue = this._value;
this._dontFire = false;
},
getType: function() {
return this._type;
},
getLabel: function() {
return this.__label;
},
setLabel: function(label) {
this.__label = label;
DomElement.set(this._label, 'text', label + ':');
},
getOptions: function() {
return this._options;
},
setOptions: function(options) {
this._options = options;
var setOptions = this._meta.setOptions;
if (setOptions)
setOptions.call(this);
},
getValue: function() {
var value = this._value,
getValue = this._meta.getValue;
return getValue ? getValue.call(this, value) : value;
},
setValue: function(value) {
var key = this._meta.value || 'value',
setValue = this._meta.setValue;
if (setValue)
value = setValue.call(this, value);
DomElement.set(this._input, key, value);
value = DomElement.get(this._input, key);
if (this._meta.number)
value = parseFloat(value, 10);
if (this._value !== value) {
this._value = value;
if (!this._dontFire)
this.fire('change', this.getValue());
}
},
getRange: function() {
return [parseFloat(DomElement.get(this._input, 'min')),
parseFloat(DomElement.get(this._input, 'max'))];
},
setRange: function(min, max) {
var range = Array.isArray(min) ? min : [min, max];
DomElement.set(this._input, { min: range[0], max: range[1] });
},
getMin: function() {
return this.getRange()[0];
},
setMin: function(min) {
this.setRange(min, this.getMax());
},
getMax: function() {
return this.getRange()[1];
},
setMax: function(max) {
this.setRange(this.getMin(), max);
},
getStep: function() {
return parseFloat(DomElement.get(this._input, 'step'));
},
setStep: function(step) {
DomElement.set(this._input, 'step', step);
},
reset: function() {
this.setValue(this._defaultValue);
}
});
var ToolEvent = Event.extend({
_class: 'ToolEvent',
_item: null,
initialize: function ToolEvent(tool, type, event) {
this.tool = tool;
this.type = type;
this.event = event;
},
_choosePoint: function(point, toolPoint) {
return point ? point : toolPoint ? toolPoint.clone() : null;
},
getPoint: function() {
return this._choosePoint(this._point, this.tool._point);
},
setPoint: function(point) {
this._point = point;
},
getLastPoint: function() {
return this._choosePoint(this._lastPoint, this.tool._lastPoint);
},
setLastPoint: function(lastPoint) {
this._lastPoint = lastPoint;
},
getDownPoint: function() {
return this._choosePoint(this._downPoint, this.tool._downPoint);
},
setDownPoint: function(downPoint) {
this._downPoint = downPoint;
},
getMiddlePoint: function() {
if (!this._middlePoint && this.tool._lastPoint) {
return this.tool._point.add(this.tool._lastPoint).divide(2);
}
return this._middlePoint;
},
setMiddlePoint: function(middlePoint) {
this._middlePoint = middlePoint;
},
getDelta: function() {
return !this._delta && this.tool._lastPoint
? this.tool._point.subtract(this.tool._lastPoint)
: this._delta;
},
setDelta: function(delta) {
this._delta = delta;
},
getCount: function() {
return /^mouse(down|up)$/.test(this.type)
? this.tool._downCount
: this.tool._count;
},
setCount: function(count) {
this.tool[/^mouse(down|up)$/.test(this.type) ? 'downCount' : 'count']
= count;
},
getItem: function() {
if (!this._item) {
var result = this.tool._scope.project.hitTest(this.getPoint());
if (result) {
var item = result.item,
parent = item._parent;
while (/^(group|compound-path)$/.test(parent._type)) {
item = parent;
parent = parent._parent;
}
this._item = item;
}
}
return this._item;
},
setItem: function(item) {
this._item = item;
},
toString: function() {
return '{ type: ' + this.type
+ ', point: ' + this.getPoint()
+ ', count: ' + this.getCount()
+ ', modifiers: ' + this.getModifiers()
+ ' }';
}
});
var Tool = PaperScopeItem.extend({
_class: 'Tool',
_list: 'tools',
_reference: '_tool',
_events: [ 'onActivate', 'onDeactivate', 'onEditOptions',
'onMouseDown', 'onMouseUp', 'onMouseDrag', 'onMouseMove',
'onKeyDown', 'onKeyUp' ],
initialize: function Tool(props) {
PaperScopeItem.call(this);
this._firstMove = true;
this._count = 0;
this._downCount = 0;
this._set(props);
},
getMinDistance: function() {
return this._minDistance;
},
setMinDistance: function(minDistance) {
this._minDistance = minDistance;
if (this._minDistance != null && this._maxDistance != null
&& this._minDistance > this._maxDistance) {
this._maxDistance = this._minDistance;
}
},
getMaxDistance: function() {
return this._maxDistance;
},
setMaxDistance: function(maxDistance) {
this._maxDistance = maxDistance;
if (this._minDistance != null && this._maxDistance != null
&& this._maxDistance < this._minDistance) {
this._minDistance = maxDistance;
}
},
getFixedDistance: function() {
return this._minDistance == this._maxDistance
? this._minDistance : null;
},
setFixedDistance: function(distance) {
this._minDistance = distance;
this._maxDistance = distance;
},
_updateEvent: function(type, point, minDistance, maxDistance, start,
needsChange, matchMaxDistance) {
if (!start) {
if (minDistance != null || maxDistance != null) {
var minDist = minDistance != null ? minDistance : 0,
vector = point.subtract(this._point),
distance = vector.getLength();
if (distance < minDist)
return false;
var maxDist = maxDistance != null ? maxDistance : 0;
if (maxDist != 0) {
if (distance > maxDist) {
point = this._point.add(vector.normalize(maxDist));
} else if (matchMaxDistance) {
return false;
}
}
}
if (needsChange && point.equals(this._point))
return false;
}
this._lastPoint = start && type == 'mousemove' ? point : this._point;
this._point = point;
switch (type) {
case 'mousedown':
this._lastPoint = this._downPoint;
this._downPoint = this._point;
this._downCount++;
break;
case 'mouseup':
this._lastPoint = this._downPoint;
break;
}
this._count = start ? 0 : this._count + 1;
return true;
},
_fireEvent: function(type, event) {
var sets = paper.project._removeSets;
if (sets) {
if (type === 'mouseup')
sets.mousedrag = null;
var set = sets[type];
if (set) {
for (var id in set) {
var item = set[id];
for (var key in sets) {
var other = sets[key];
if (other && other != set)
delete other[item._id];
}
item.remove();
}
sets[type] = null;
}
}
return this.responds(type)
&& this.fire(type, new ToolEvent(this, type, event));
},
_onHandleEvent: function(type, point, event) {
paper = this._scope;
var called = false;
switch (type) {
case 'mousedown':
this._updateEvent(type, point, null, null, true, false, false);
called = this._fireEvent(type, event);
break;
case 'mousedrag':
var needsChange = false,
matchMaxDistance = false;
while (this._updateEvent(type, point, this.minDistance,
this.maxDistance, false, needsChange, matchMaxDistance)) {
called = this._fireEvent(type, event) || called;
needsChange = true;
matchMaxDistance = true;
}
break;
case 'mouseup':
if (!point.equals(this._point)
&& this._updateEvent('mousedrag', point, this.minDistance,
this.maxDistance, false, false, false)) {
called = this._fireEvent('mousedrag', event);
}
this._updateEvent(type, point, null, this.maxDistance, false,
false, false);
called = this._fireEvent(type, event) || called;
this._updateEvent(type, point, null, null, true, false, false);
this._firstMove = true;
break;
case 'mousemove':
while (this._updateEvent(type, point, this.minDistance,
this.maxDistance, this._firstMove, true, false)) {
called = this._fireEvent(type, event) || called;
this._firstMove = false;
}
break;
}
return called;
}
});
var Http = {
request: function(method, url, callback) {
var xhr = new (window.ActiveXObject || XMLHttpRequest)(
'Microsoft.XMLHTTP');
xhr.open(method.toUpperCase(), url, true);
if ('overrideMimeType' in xhr)
xhr.overrideMimeType('text/plain');
xhr.onreadystatechange = function() {
if (xhr.readyState === 4) {
var status = xhr.status;
if (status === 0 || status === 200) {
callback.call(xhr, xhr.responseText);
} else {
throw new Error('Could not load ' + url + ' (Error '
+ status + ')');
}
}
};
return xhr.send(null);
}
};
var CanvasProvider = {
canvases: [],
getCanvas: function(width, height, ratio) {
var canvas,
init = true;
if (typeof width === 'object') {
ratio = height;
height = width.height;
width = width.width;
}
if (!ratio) {
ratio = 1;
} else if (ratio !== 1) {
width *= ratio;
height *= ratio;
}
if (this.canvases.length) {
canvas = this.canvases.pop();
} else {
canvas = document.createElement('canvas');
}
var ctx = canvas.getContext('2d');
if (canvas.width === width && canvas.height === height) {
if (init)
ctx.clearRect(0, 0, width + 1, height + 1);
} else {
canvas.width = width;
canvas.height = height;
}
ctx.save();
if (ratio !== 1)
ctx.scale(ratio, ratio);
return canvas;
},
getContext: function(width, height) {
return this.getCanvas(width, height).getContext('2d');
},
release: function(obj) {
var canvas = obj.canvas ? obj.canvas : obj;
canvas.getContext('2d').restore();
this.canvases.push(canvas);
}
};
var BlendMode = new function() {
var min = Math.min,
max = Math.max,
abs = Math.abs,
sr, sg, sb, sa,
br, bg, bb, ba,
dr, dg, db;
function getLum(r, g, b) {
return 0.2989 * r + 0.587 * g + 0.114 * b;
}
function setLum(r, g, b, l) {
var d = l - getLum(r, g, b);
dr = r + d;
dg = g + d;
db = b + d;
var l = getLum(dr, dg, db),
mn = min(dr, dg, db),
mx = max(dr, dg, db);
if (mn < 0) {
var lmn = l - mn;
dr = l + (dr - l) * l / lmn;
dg = l + (dg - l) * l / lmn;
db = l + (db - l) * l / lmn;
}
if (mx > 255) {
var ln = 255 - l,
mxl = mx - l;
dr = l + (dr - l) * ln / mxl;
dg = l + (dg - l) * ln / mxl;
db = l + (db - l) * ln / mxl;
}
}
function getSat(r, g, b) {
return max(r, g, b) - min(r, g, b);
}
function setSat(r, g, b, s) {
var col = [r, g, b],
mx = max(r, g, b),
mn = min(r, g, b),
md;
mn = mn === r ? 0 : mn === g ? 1 : 2;
mx = mx === r ? 0 : mx === g ? 1 : 2;
md = min(mn, mx) === 0 ? max(mn, mx) === 1 ? 2 : 1 : 0;
if (col[mx] > col[mn]) {
col[md] = (col[md] - col[mn]) * s / (col[mx] - col[mn]);
col[mx] = s;
} else {
col[md] = col[mx] = 0;
}
col[mn] = 0;
dr = col[0];
dg = col[1];
db = col[2];
}
var modes = {
multiply: function() {
dr = br * sr / 255;
dg = bg * sg / 255;
db = bb * sb / 255;
},
screen: function() {
dr = br + sr - (br * sr / 255);
dg = bg + sg - (bg * sg / 255);
db = bb + sb - (bb * sb / 255);
},
overlay: function() {
dr = br < 128 ? 2 * br * sr / 255 : 255 - 2 * (255 - br) * (255 - sr) / 255;
dg = bg < 128 ? 2 * bg * sg / 255 : 255 - 2 * (255 - bg) * (255 - sg) / 255;
db = bb < 128 ? 2 * bb * sb / 255 : 255 - 2 * (255 - bb) * (255 - sb) / 255;
},
'soft-light': function() {
var t = sr * br / 255;
dr = t + br * (255 - (255 - br) * (255 - sr) / 255 - t) / 255;
t = sg * bg / 255;
dg = t + bg * (255 - (255 - bg) * (255 - sg) / 255 - t) / 255;
t = sb * bb / 255;
db = t + bb * (255 - (255 - bb) * (255 - sb) / 255 - t) / 255;
},
'hard-light': function() {
dr = sr < 128 ? 2 * sr * br / 255 : 255 - 2 * (255 - sr) * (255 - br) / 255;
dg = sg < 128 ? 2 * sg * bg / 255 : 255 - 2 * (255 - sg) * (255 - bg) / 255;
db = sb < 128 ? 2 * sb * bb / 255 : 255 - 2 * (255 - sb) * (255 - bb) / 255;
},
'color-dodge': function() {
dr = br === 0 ? 0 : sr === 255 ? 255 : min(255, 255 * br / (255 - sr));
dg = bg === 0 ? 0 : sg === 255 ? 255 : min(255, 255 * bg / (255 - sg));
db = bb === 0 ? 0 : sb === 255 ? 255 : min(255, 255 * bb / (255 - sb));
},
'color-burn': function() {
dr = br === 255 ? 255 : sr === 0 ? 0 : max(0, 255 - (255 - br) * 255 / sr);
dg = bg === 255 ? 255 : sg === 0 ? 0 : max(0, 255 - (255 - bg) * 255 / sg);
db = bb === 255 ? 255 : sb === 0 ? 0 : max(0, 255 - (255 - bb) * 255 / sb);
},
darken: function() {
dr = br < sr ? br : sr;
dg = bg < sg ? bg : sg;
db = bb < sb ? bb : sb;
},
lighten: function() {
dr = br > sr ? br : sr;
dg = bg > sg ? bg : sg;
db = bb > sb ? bb : sb;
},
difference: function() {
dr = br - sr;
if (dr < 0)
dr = -dr;
dg = bg - sg;
if (dg < 0)
dg = -dg;
db = bb - sb;
if (db < 0)
db = -db;
},
exclusion: function() {
dr = br + sr * (255 - br - br) / 255;
dg = bg + sg * (255 - bg - bg) / 255;
db = bb + sb * (255 - bb - bb) / 255;
},
hue: function() {
setSat(sr, sg, sb, getSat(br, bg, bb));
setLum(dr, dg, db, getLum(br, bg, bb));
},
saturation: function() {
setSat(br, bg, bb, getSat(sr, sg, sb));
setLum(dr, dg, db, getLum(br, bg, bb));
},
luminosity: function() {
setLum(br, bg, bb, getLum(sr, sg, sb));
},
color: function() {
setLum(sr, sg, sb, getLum(br, bg, bb));
},
add: function() {
dr = min(br + sr, 255);
dg = min(bg + sg, 255);
db = min(bb + sb, 255);
},
subtract: function() {
dr = max(br - sr, 0);
dg = max(bg - sg, 0);
db = max(bb - sb, 0);
},
average: function() {
dr = (br + sr) / 2;
dg = (bg + sg) / 2;
db = (bb + sb) / 2;
},
negation: function() {
dr = 255 - abs(255 - sr - br);
dg = 255 - abs(255 - sg - bg);
db = 255 - abs(255 - sb - bb);
}
};
var nativeModes = this.nativeModes = Base.each([
'source-over', 'source-in', 'source-out', 'source-atop',
'destination-over', 'destination-in', 'destination-out',
'destination-atop', 'lighter', 'darker', 'copy', 'xor'
], function(mode) {
this[mode] = true;
}, {});
var ctx = CanvasProvider.getContext(1, 1);
Base.each(modes, function(func, mode) {
ctx.save();
var darken = mode === 'darken',
ok = false;
ctx.fillStyle = darken ? '#300' : '#a00';
ctx.fillRect(0, 0, 1, 1);
ctx.globalCompositeOperation = mode;
if (ctx.globalCompositeOperation === mode) {
ctx.fillStyle = darken ? '#a00' : '#300';
ctx.fillRect(0, 0, 1, 1);
ok = ctx.getImageData(0, 0, 1, 1).data[0] !== (darken ? 170 : 51);
}
nativeModes[mode] = ok;
ctx.restore();
});
CanvasProvider.release(ctx);
this.process = function(mode, srcContext, dstContext, alpha, offset) {
var srcCanvas = srcContext.canvas,
normal = mode === 'normal';
if (normal || nativeModes[mode]) {
dstContext.save();
dstContext.setTransform(1, 0, 0, 1, 0, 0);
dstContext.globalAlpha = alpha;
if (!normal)
dstContext.globalCompositeOperation = mode;
dstContext.drawImage(srcCanvas, offset.x, offset.y);
dstContext.restore();
} else {
var process = modes[mode];
if (!process)
return;
var dstData = dstContext.getImageData(offset.x, offset.y,
srcCanvas.width, srcCanvas.height),
dst = dstData.data,
src = srcContext.getImageData(0, 0,
srcCanvas.width, srcCanvas.height).data;
for (var i = 0, l = dst.length; i < l; i += 4) {
sr = src[i];
br = dst[i];
sg = src[i + 1];
bg = dst[i + 1];
sb = src[i + 2];
bb = dst[i + 2];
sa = src[i + 3];
ba = dst[i + 3];
process();
var a1 = sa * alpha / 255,
a2 = 1 - a1;
dst[i] = a1 * dr + a2 * br;
dst[i + 1] = a1 * dg + a2 * bg;
dst[i + 2] = a1 * db + a2 * bb;
dst[i + 3] = sa * alpha + a2 * ba;
}
dstContext.putImageData(dstData, offset.x, offset.y);
}
};
};
var SVGStyles = Base.each({
fillColor: ['fill', 'color'],
strokeColor: ['stroke', 'color'],
strokeWidth: ['stroke-width', 'number'],
strokeCap: ['stroke-linecap', 'string'],
strokeJoin: ['stroke-linejoin', 'string'],
miterLimit: ['stroke-miterlimit', 'number'],
dashArray: ['stroke-dasharray', 'array'],
dashOffset: ['stroke-dashoffset', 'number'],
font: ['font-family', 'string'],
fontSize: ['font-size', 'number'],
justification: ['text-anchor', 'lookup', {
left: 'start',
center: 'middle',
right: 'end'
}],
opacity: ['opacity', 'number'],
blendMode: ['mix-blend-mode', 'string']
}, function(entry, key) {
var part = Base.capitalize(key),
lookup = entry[2];
this[key] = {
type: entry[1],
property: key,
attribute: entry[0],
toSVG: lookup,
fromSVG: lookup && Base.each(lookup, function(value, name) {
this[value] = name;
}, {}),
get: 'get' + part,
set: 'set' + part
};
}, {});
var SVGNamespaces = {
href: 'http://www.w3.org/1999/xlink',
xlink: 'http://www.w3.org/2000/xmlns'
};
new function() {
var formatter;
function setAttributes(node, attrs) {
for (var key in attrs) {
var val = attrs[key],
namespace = SVGNamespaces[key];
if (typeof val === 'number')
val = formatter.number(val);
if (namespace) {
node.setAttributeNS(namespace, key, val);
} else {
node.setAttribute(key, val);
}
}
return node;
}
function createElement(tag, attrs) {
return setAttributes(
document.createElementNS('http://www.w3.org/2000/svg', tag), attrs);
}
function getTransform(item, coordinates, center) {
var matrix = item._matrix,
trans = matrix.getTranslation(),
attrs = {};
if (coordinates) {
matrix = matrix.shiftless();
var point = matrix._inverseTransform(trans);
attrs[center ? 'cx' : 'x'] = point.x;
attrs[center ? 'cy' : 'y'] = point.y;
trans = null;
}
if (matrix.isIdentity())
return attrs;
var decomposed = matrix.decompose();
if (decomposed && !decomposed.shearing) {
var parts = [],
angle = decomposed.rotation,
scale = decomposed.scaling;
if (trans && !trans.isZero())
parts.push('translate(' + formatter.point(trans) + ')');
if (!Numerical.isZero(scale.x - 1) || !Numerical.isZero(scale.y - 1))
parts.push('scale(' + formatter.point(scale) +')');
if (angle)
parts.push('rotate(' + formatter.number(angle) + ')');
attrs.transform = parts.join(' ');
} else {
attrs.transform = 'matrix(' + matrix.getValues().join(',') + ')';
}
return attrs;
}
function exportGroup(item, options) {
var attrs = getTransform(item),
children = item._children;
var node = createElement('g', attrs);
for (var i = 0, l = children.length; i < l; i++) {
var child = children[i];
var childNode = exportSVG(child, options);
if (childNode) {
if (child.isClipMask()) {
var clip = createElement('clipPath');
clip.appendChild(childNode);
setDefinition(child, clip, 'clip');
setAttributes(node, {
'clip-path': 'url(#' + clip.id + ')'
});
} else {
node.appendChild(childNode);
}
}
}
return node;
}
function exportRaster(item) {
var attrs = getTransform(item, true),
size = item.getSize();
attrs.x -= size.width / 2;
attrs.y -= size.height / 2;
attrs.width = size.width;
attrs.height = size.height;
attrs.href = item.toDataURL();
return createElement('image', attrs);
}
function exportPath(item, options) {
if (options.matchShapes) {
var shape = item.toShape(false);
if (shape)
return exportShape(shape, options);
}
var segments = item._segments,
type,
attrs;
if (segments.length === 0)
return null;
if (item.isPolygon()) {
if (segments.length >= 3) {
type = item._closed ? 'polygon' : 'polyline';
var parts = [];
for(i = 0, l = segments.length; i < l; i++)
parts.push(formatter.point(segments[i]._point));
attrs = {
points: parts.join(' ')
};
} else {
type = 'line';
var first = segments[0]._point,
last = segments[segments.length - 1]._point;
attrs = {
x1: first.x,
y1: first.y,
x2: last.x,
y2: last.y
};
}
} else {
type = 'path';
var data = item.getPathData();
attrs = data && { d: data };
}
return createElement(type, attrs);
}
function exportShape(item) {
var shape = item._shape,
radius = item._radius,
attrs = getTransform(item, true, shape !== 'rectangle');
if (shape === 'rectangle') {
shape = 'rect';
var size = item._size,
width = size.width,
height = size.height;
attrs.x -= width / 2;
attrs.y -= height / 2;
attrs.width = width;
attrs.height = height;
if (radius.isZero())
radius = null;
}
if (radius) {
if (shape === 'circle') {
attrs.r = radius;
} else {
attrs.rx = radius.width;
attrs.ry = radius.height;
}
}
return createElement(shape, attrs);
}
function exportCompoundPath(item) {
var attrs = getTransform(item, true);
var data = item.getPathData();
if (data)
attrs.d = data;
return createElement('path', attrs);
}
function exportPlacedSymbol(item, options) {
var attrs = getTransform(item, true),
symbol = item.getSymbol(),
symbolNode = getDefinition(symbol, 'symbol'),
definition = symbol.getDefinition(),
bounds = definition.getBounds();
if (!symbolNode) {
symbolNode = createElement('symbol', {
viewBox: formatter.rectangle(bounds)
});
symbolNode.appendChild(exportSVG(definition, options));
setDefinition(symbol, symbolNode, 'symbol');
}
attrs.href = '#' + symbolNode.id;
attrs.x += bounds.x;
attrs.y += bounds.y;
attrs.width = formatter.number(bounds.width);
attrs.height = formatter.number(bounds.height);
return createElement('use', attrs);
}
function exportGradient(color) {
var gradientNode = getDefinition(color, 'color');
if (!gradientNode) {
var gradient = color.getGradient(),
radial = gradient._radial,
origin = color.getOrigin().transform(),
destination = color.getDestination().transform(),
attrs;
if (radial) {
attrs = {
cx: origin.x,
cy: origin.y,
r: origin.getDistance(destination)
};
var highlight = color.getHighlight();
if (highlight) {
highlight = highlight.transform();
attrs.fx = highlight.x;
attrs.fy = highlight.y;
}
} else {
attrs = {
x1: origin.x,
y1: origin.y,
x2: destination.x,
y2: destination.y
};
}
attrs.gradientUnits = 'userSpaceOnUse';
gradientNode = createElement(
(radial ? 'radial' : 'linear') + 'Gradient', attrs);
var stops = gradient._stops;
for (var i = 0, l = stops.length; i < l; i++) {
var stop = stops[i],
stopColor = stop._color,
alpha = stopColor.getAlpha();
attrs = {
offset: stop._rampPoint,
'stop-color': stopColor.toCSS(true)
};
if (alpha < 1)
attrs['stop-opacity'] = alpha;
gradientNode.appendChild(createElement('stop', attrs));
}
setDefinition(color, gradientNode, 'color');
}
return 'url(#' + gradientNode.id + ')';
}
function exportText(item) {
var node = createElement('text', getTransform(item, true));
node.textContent = item._content;
return node;
}
var exporters = {
group: exportGroup,
layer: exportGroup,
raster: exportRaster,
path: exportPath,
shape: exportShape,
'compound-path': exportCompoundPath,
'placed-symbol': exportPlacedSymbol,
'point-text': exportText
};
function applyStyle(item, node) {
var attrs = {},
parent = item.getParent();
if (item._name != null)
attrs.id = item._name;
Base.each(SVGStyles, function(entry) {
var get = entry.get,
type = entry.type,
value = item[get]();
if (!parent || !Base.equals(parent[get](), value)) {
if (type === 'color' && value != null) {
var alpha = value.getAlpha();
if (alpha < 1)
attrs[entry.attribute + '-opacity'] = alpha;
}
attrs[entry.attribute] = value == null
? 'none'
: type === 'number'
? formatter.number(value)
: type === 'color'
? value.gradient
? exportGradient(value, item)
: value.toCSS(true)
: type === 'array'
? value.join(',')
: type === 'lookup'
? entry.toSVG[value]
: value;
}
});
if (attrs.opacity === 1)
delete attrs.opacity;
if (item._visibility != null && !item._visibility)
attrs.visibility = 'hidden';
return setAttributes(node, attrs);
}
var definitions;
function getDefinition(item, type) {
if (!definitions)
definitions = { ids: {}, svgs: {} };
return item && definitions.svgs[type + '-' + item._id];
}
function setDefinition(item, node, type) {
if (!definitions)
getDefinition();
var id = definitions.ids[type] = (definitions.ids[type] || 0) + 1;
node.id = type + '-' + id;
definitions.svgs[type + '-' + item._id] = node;
}
function exportDefinitions(node, options) {
var svg = node,
defs = null;
if (definitions) {
svg = node.nodeName.toLowerCase() === 'svg' && node;
for (var i in definitions.svgs) {
if (!defs) {
if (!svg) {
svg = createElement('svg');
svg.appendChild(node);
}
defs = svg.insertBefore(createElement('defs'),
svg.firstChild);
}
defs.appendChild(definitions.svgs[i]);
}
definitions = null;
}
return options.asString
? new XMLSerializer().serializeToString(svg)
: svg;
}
function exportSVG(item, options) {
var exporter = exporters[item._type],
node = exporter && exporter(item, options);
if (node && item._data)
node.setAttribute('data-paper-data', JSON.stringify(item._data));
return node && applyStyle(item, node);
}
function setOptions(options) {
if (!options)
options = {};
formatter = new Formatter(options.precision);
return options;
}
Item.inject({
exportSVG: function(options) {
options = setOptions(options);
return exportDefinitions(exportSVG(this, options), options);
}
});
Project.inject({
exportSVG: function(options) {
options = setOptions(options);
var layers = this.layers,
size = this.view.getSize(),
node = createElement('svg', {
x: 0,
y: 0,
width: size.width,
height: size.height,
version: '1.1',
xmlns: 'http://www.w3.org/2000/svg',
'xmlns:xlink': 'http://www.w3.org/1999/xlink'
});
for (var i = 0, l = layers.length; i < l; i++)
node.appendChild(exportSVG(layers[i], options));
return exportDefinitions(node, options);
}
});
};
new function() {
function getValue(node, name, isString, allowNull) {
var namespace = SVGNamespaces[name],
value = namespace
? node.getAttributeNS(namespace, name)
: node.getAttribute(name);
if (value === 'null')
value = null;
return value == null
? allowNull
? null
: isString
? ''
: 0
: isString
? value
: parseFloat(value);
}
function getPoint(node, x, y, allowNull) {
x = getValue(node, x, false, allowNull);
y = getValue(node, y, false, allowNull);
return allowNull && (x == null || y == null) ? null
: new Point(x, y);
}
function getSize(node, w, h, allowNull) {
w = getValue(node, w, false, allowNull);
h = getValue(node, h, false, allowNull);
return allowNull && (w == null || h == null) ? null
: new Size(w, h);
}
function convertValue(value, type, lookup) {
return value === 'none'
? null
: type === 'number'
? parseFloat(value)
: type === 'array'
? value ? value.split(/[\s,]+/g).map(parseFloat) : []
: type === 'color'
? getDefinition(value) || value
: type === 'lookup'
? lookup[value]
: value;
}
function importGroup(node, type, isRoot, options) {
var nodes = node.childNodes,
isClip = type === 'clippath',
item = new Group(),
project = item._project,
currentStyle = project._currentStyle,
children = [];
if (!isClip) {
item._transformContent = false;
item = applyAttributes(item, node, isRoot);
project._currentStyle = item._style.clone();
}
for (var i = 0, l = nodes.length; i < l; i++) {
var childNode = nodes[i],
child;
if (childNode.nodeType === 1
&& (child = importSVG(childNode, false, options))
&& !(child instanceof Symbol))
children.push(child);
}
item.addChildren(children);
if (isClip)
item = applyAttributes(item.reduce(), node, isRoot);
project._currentStyle = currentStyle;
if (isClip || type === 'defs') {
item.remove();
item = null;
}
return item;
}
function importPoly(node, type) {
var path = new Path(),
points = node.points;
path.moveTo(points.getItem(0));
for (var i = 1, l = points.numberOfItems; i < l; i++)
path.lineTo(points.getItem(i));
if (type === 'polygon')
path.closePath();
return path;
}
function importPath(node) {
var data = node.getAttribute('d'),
path = data.match(/m/gi).length > 1
? new CompoundPath()
: new Path();
path.setPathData(data);
return path;
}
function importGradient(node, type) {
var nodes = node.childNodes,
stops = [];
for (var i = 0, l = nodes.length; i < l; i++) {
var child = nodes[i];
if (child.nodeType === 1)
stops.push(applyAttributes(new GradientStop(), child));
}
var isRadial = type === 'radialgradient',
gradient = new Gradient(stops, isRadial),
origin, destination, highlight;
if (isRadial) {
origin = getPoint(node, 'cx', 'cy');
destination = origin.add(getValue(node, 'r'), 0);
highlight = getPoint(node, 'fx', 'fy', true);
} else {
origin = getPoint(node, 'x1', 'y1');
destination = getPoint(node, 'x2', 'y2');
}
applyAttributes(
new Color(gradient, origin, destination, highlight), node);
return null;
}
var importers = {
'#document': function (node, type, isRoot, options) {
var nodes = node.childNodes;
for (var i = 0, l = nodes.length; i < l; i++) {
var child = nodes[i];
if (child.nodeType === 1) {
var next = child.nextSibling;
document.body.appendChild(child);
var item = importSVG(child, isRoot, options);
if (next) {
node.insertBefore(child, next);
} else {
node.appendChild(child);
}
return item;
}
}
},
g: importGroup,
svg: importGroup,
clippath: importGroup,
polygon: importPoly,
polyline: importPoly,
path: importPath,
lineargradient: importGradient,
radialgradient: importGradient,
image: function (node) {
var raster = new Raster(getValue(node, 'href', true));
raster.attach('load', function() {
var size = getSize(node, 'width', 'height');
this.setSize(size);
var center = this._matrix._transformPoint(
getPoint(node, 'x', 'y').add(size.divide(2)));
this.translate(center);
});
return raster;
},
symbol: function(node, type, isRoot, options) {
return new Symbol(importGroup(node, type, isRoot, options), true);
},
defs: importGroup,
use: function(node) {
var id = (getValue(node, 'href', true) || '').substring(1),
definition = definitions[id],
point = getPoint(node, 'x', 'y');
return definition
? definition instanceof Symbol
? definition.place(point)
: definition.clone().translate(point)
: null;
},
circle: function(node) {
return new Shape.Circle(getPoint(node, 'cx', 'cy'),
getValue(node, 'r'));
},
ellipse: function(node) {
return new Shape.Ellipse({
center: getPoint(node, 'cx', 'cy'),
radius: getSize(node, 'rx', 'ry')
});
},
rect: function(node) {
var point = getPoint(node, 'x', 'y'),
size = getSize(node, 'width', 'height'),
radius = getSize(node, 'rx', 'ry');
return new Shape.Rectangle(new Rectangle(point, size), radius);
},
line: function(node) {
return new Path.Line(getPoint(node, 'x1', 'y1'),
getPoint(node, 'x2', 'y2'));
},
text: function(node) {
var text = new PointText(getPoint(node, 'x', 'y')
.add(getPoint(node, 'dx', 'dy')));
text.setContent(node.textContent.trim() || '');
return text;
}
};
function applyTransform(item, value, name, node) {
var transforms = (node.getAttribute(name) || '').split(/\)\s*/g),
matrix = new Matrix();
for (var i = 0, l = transforms.length; i < l; i++) {
var transform = transforms[i];
if (!transform)
break;
var parts = transform.split('('),
command = parts[0],
v = parts[1].split(/[\s,]+/g);
for (var j = 0, m = v.length; j < m; j++)
v[j] = parseFloat(v[j]);
switch (command) {
case 'matrix':
matrix.concatenate(
new Matrix(v[0], v[1], v[2], v[3], v[4], v[5]));
break;
case 'rotate':
matrix.rotate(v[0], v[1], v[2]);
break;
case 'translate':
matrix.translate(v[0], v[1]);
break;
case 'scale':
matrix.scale(v);
break;
case 'skewX':
case 'skewY':
var value = Math.tan(v[0] * Math.PI / 180),
isX = command == 'skewX';
matrix.shear(isX ? value : 0, isX ? 0 : value);
break;
}
}
item.transform(matrix);
}
function applyOpacity(item, value, name) {
var color = item[name === 'fill-opacity' ? 'getFillColor'
: 'getStrokeColor']();
if (color)
color.setAlpha(parseFloat(value));
}
var attributes = Base.each(SVGStyles, function(entry) {
this[entry.attribute] = function(item, value) {
item[entry.set](convertValue(value, entry.type, entry.fromSVG));
if (entry.type === 'color' && item instanceof Shape) {
var color = item[entry.get]();
if (color)
color.transform(new Matrix().translate(
item.getPosition(true).negate()));
}
};
}, {
id: function(item, value) {
definitions[value] = item;
if (item.setName)
item.setName(value);
},
'clip-path': function(item, value) {
var clip = getDefinition(value);
if (clip) {
clip = clip.clone();
clip.setClipMask(true);
if (item instanceof Group) {
item.insertChild(0, clip);
} else {
return new Group(clip, item);
}
}
},
gradientTransform: applyTransform,
transform: applyTransform,
'fill-opacity': applyOpacity,
'stroke-opacity': applyOpacity,
visibility: function(item, value) {
item.setVisible(value === 'visible');
},
'stop-color': function(item, value) {
if (item.setColor)
item.setColor(value);
},
'stop-opacity': function(item, value) {
if (item._color)
item._color.setAlpha(parseFloat(value));
},
offset: function(item, value) {
var percentage = value.match(/(.*)%$/);
item.setRampPoint(percentage
? percentage[1] / 100
: parseFloat(value));
},
viewBox: function(item, value, name, node, styles) {
var rect = new Rectangle(convertValue(value, 'array')),
size = getSize(node, 'width', 'height', true);
if (item instanceof Group) {
var scale = size ? rect.getSize().divide(size) : 1,
matrix = new Matrix().translate(rect.getPoint()).scale(scale);
item.transform(matrix.inverted());
} else if (item instanceof Symbol) {
if (size)
rect.setSize(size);
var clip = getAttribute(node, 'overflow', styles) != 'visible',
group = item._definition;
if (clip && !rect.contains(group.getBounds())) {
clip = new Shape.Rectangle(rect).transform(group._matrix);
clip.setClipMask(true);
group.addChild(clip);
}
}
}
});
function getAttribute(node, name, styles) {
var attr = node.attributes[name],
value = attr && attr.value;
if (!value) {
var style = Base.camelize(name);
value = node.style[style];
if (!value && styles.node[style] !== styles.parent[style])
value = styles.node[style];
}
return !value
? undefined
: value === 'none'
? null
: value;
}
function applyAttributes(item, node, isRoot) {
var styles = {
node: DomElement.getStyles(node) || {},
parent: !isRoot && DomElement.getStyles(node.parentNode) || {}
};
Base.each(attributes, function(apply, name) {
var value = getAttribute(node, name, styles);
if (value !== undefined)
item = Base.pick(apply(item, value, name, node, styles), item);
});
return item;
}
var definitions = {};
function getDefinition(value) {
var match = value && value.match(/\((?:#|)([^)']+)/);
return match && definitions[match[1]];
}
function importSVG(source, isRoot, options) {
if (!source)
return null;
if (!options) {
options = {};
} else if (typeof options === 'function') {
options = { onLoad: options };
}
var node = source,
scope = paper;
function onLoadCallback(svg) {
paper = scope;
var item = importSVG(svg, isRoot, options),
onLoad = options.onLoad,
view = scope.project && scope.project.view;
if (onLoad)
onLoad.call(this, item);
view.draw(true);
}
if (isRoot) {
if (typeof source === 'string' && !/^.*</.test(source)) {
node = document.getElementById(source);
if (node) {
source = null;
} else {
return Http.request('get', source, onLoadCallback);
}
} else if (typeof File !== 'undefined' && source instanceof File) {
var reader = new FileReader();
reader.onload = function() {
onLoadCallback(reader.result);
};
return reader.readAsText(source);
}
}
if (typeof source === 'string')
node = new DOMParser().parseFromString(source, 'image/svg+xml');
if (!node.nodeName)
throw new Error('Unsupported SVG source: ' + source);
var type = node.nodeName.toLowerCase(),
importer = importers[type],
item = importer && importer(node, type, isRoot, options) || null,
data = node.getAttribute && node.getAttribute('data-paper-data');
if (item) {
if (!(item instanceof Group))
item = applyAttributes(item, node, isRoot);
if (options.expandShapes && item instanceof Shape) {
item.remove();
item = item.toPath();
}
if (data)
item._data = JSON.parse(data);
}
if (isRoot)
definitions = {};
return item;
}
Item.inject({
importSVG: function(node, options) {
return this.addChild(importSVG(node, true, options));
}
});
Project.inject({
importSVG: function(node, options) {
this.activate();
return importSVG(node, true, options);
}
});
};
paper = new (PaperScope.inject(new Base(Base.exports, {
enumerable: true,
Base: Base,
Numerical: Numerical,
DomElement: DomElement,
DomEvent: DomEvent,
Http: Http,
Key: Key
})))();
if (typeof define === 'function' && define.amd)
define('paper', paper);
return paper;
};
paper.PaperScope.prototype.PaperScript = (function(root) {
var Base = paper.Base,
PaperScope = paper.PaperScope,
PaperScript,
exports, define,
scope = this;
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e,r,n="",a=br;;){br>=dr&&t(a,"Unterminated regular expression");var o=pr.charAt(br);if(Gt.test(o)&&t(a,"Unterminated regular expression"),e)e=!1;else{if("["===o)r=!0;else if("]"===o&&r)r=!1;else if("/"===o&&!r)break;e="\\"===o}++br}var n=pr.slice(a,br);++br;var s=I();return s&&!/^[gmsiy]*$/.test(s)&&t(a,"Invalid regexp flag"),i(jr,new RegExp(n,s))}function w(e,r){for(var t=br,n=0,a=0,o=null==r?1/0:r;o>a;++a){var i,s=pr.charCodeAt(br);if(i=s>=97?s-97+10:s>=65?s-65+10:s>=48&&57>=s?s-48:1/0,i>=e)break;++br,n=n*e+i}return br===t||null!=r&&br-t!==r?null:n}function C(){br+=2;var e=w(16);return null==e&&t(yr+2,"Expected hexadecimal number"),Qt(pr.charCodeAt(br))&&t(br,"Identifier directly after number"),i(Or,e)}function E(e){var r=br,n=!1,a=48===pr.charCodeAt(br);e||null!==w(10)||t(r,"Invalid number"),46===pr.charCodeAt(br)&&(++br,w(10),n=!0);var o=pr.charCodeAt(br);(69===o||101===o)&&(o=pr.charCodeAt(++br),(43===o||45===o)&&++br,null===w(10)&&t(r,"Invalid 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10:fr.locations&&(Sr=br,++Ar);break;default:r+=String.fromCharCode(n)}}else(13===n||10===n||8232===n||8329===n)&&t(yr,"Unterminated string constant"),r+=String.fromCharCode(n),++br}}function S(e){var r=w(16,e);return null===r&&t(yr,"Bad character escape sequence"),r}function I(){Bt=!1;for(var e,r=!0,n=br;;){var a=pr.charCodeAt(br);if(Yt(a))Bt&&(e+=pr.charAt(br)),++br;else{if(92!==a)break;Bt||(e=pr.slice(n,br)),Bt=!0,117!=pr.charCodeAt(++br)&&t(br,"Expecting Unicode escape sequence \\uXXXX"),++br;var o=S(4),i=String.fromCharCode(o);i||t(br-1,"Invalid Unicode escape"),(r?Qt(o):Yt(o))||t(br-4,"Invalid Unicode escape"),e+=i}r=!1}return Bt?e:pr.slice(n,br)}function L(){var e=I(),r=Dr;return Bt||(Wt(e)?r=lt[e]:(fr.forbidReserved&&(3===fr.ecmaVersion?Mt:zt)(e)||Vr&&Xt(e))&&t(yr,"The keyword '"+e+"' is reserved")),i(r,e)}function U(){Ir=yr,Lr=gr,Ur=kr,g()}function R(e){for(Vr=e,br=Lr;Sr>br;)Sr=pr.lastIndexOf("\n",Sr-2)+1,--Ar;u(),g()}function T(){this.type=null,this.start=yr,this.end=null}function V(){this.start=xr,this.end=null,null!==mr&&(this.source=mr)}function q(){var e=new T;return fr.locations&&(e.loc=new V),fr.ranges&&(e.range=[yr,0]),e}function O(e){var r=new T;return r.start=e.start,fr.locations&&(r.loc=new V,r.loc.start=e.loc.start),fr.ranges&&(r.range=[e.range[0],0]),r}function j(e,r){return e.type=r,e.end=Lr,fr.locations&&(e.loc.end=Ur),fr.ranges&&(e.range[1]=Lr),e}function F(e){return fr.ecmaVersion>=5&&"ExpressionStatement"===e.type&&"Literal"===e.expression.type&&"use strict"===e.expression.value}function D(e){return wr===e?(U(),!0):void 0}function B(){return!fr.strictSemicolons&&(wr===Br||wr===mt||Gt.test(pr.slice(Lr,yr)))}function M(){D(yt)||B()||X()}function z(e){wr===e?U():X()}function X(){t(yr,"Unexpected token")}function N(e){"Identifier"!==e.type&&"MemberExpression"!==e.type&&t(e.start,"Assigning to rvalue"),Vr&&"Identifier"===e.type&&Nt(e.name)&&t(e.start,"Assigning to "+e.name+" in strict 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this"),Jt=/[\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]/,Pt="\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc",Ht="\u0300-\u036f\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u0620-\u0649\u0672-\u06d3\u06e7-\u06e8\u06fb-\u06fc\u0730-\u074a\u0800-\u0814\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0840-\u0857\u08e4-\u08fe\u0900-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09d7\u09df-\u09e0\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5f-\u0b60\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c46-\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RegExp("["+Pt+"]"),_t=new RegExp("["+Pt+Ht+"]"),Gt=/[\n\r\u2028\u2029]/,Kt=/\r\n|[\n\r\u2028\u2029]/g,Qt=e.isIdentifierStart=function(e){return 65>e?36===e:91>e?!0:97>e?95===e:123>e?!0:e>=170&&$t.test(String.fromCharCode(e))},Yt=e.isIdentifierChar=function(e){return 48>e?36===e:58>e?!0:65>e?!1:91>e?!0:97>e?95===e:123>e?!0:e>=170&&_t.test(String.fromCharCode(e))},Zt={kind:"loop"},en={kind:"switch"}});
var binaryOperators = {
'+': '_add',
'-': '_subtract',
'*': '_multiply',
'/': '_divide',
'%': '_modulo',
'==': 'equals',
'!=': 'equals'
};
var unaryOperators = {
'-': '_negate',
'+': null
};
var fields = Base.each(
['add', 'subtract', 'multiply', 'divide', 'modulo', 'negate'],
function(name) {
this['_' + name] = '#' + name;
},
{}
);
paper.Point.inject(fields);
paper.Size.inject(fields);
paper.Color.inject(fields);
function _$_(left, operator, right) {
var handler = binaryOperators[operator];
if (left && left[handler]) {
var res = left[handler](right);
return operator === '!=' ? !res : res;
}
switch (operator) {
case '+': return left + right;
case '-': return left - right;
case '*': return left * right;
case '/': return left / right;
case '%': return left % right;
case '==': return left == right;
case '!=': return left != right;
}
}
function $_(operator, value) {
var handler = unaryOperators[operator];
if (handler && value && value[handler])
return value[handler]();
switch (operator) {
case '+': return +value;
case '-': return -value;
}
}
function compile(code) {
var insertions = [];
function getOffset(offset) {
for (var i = 0, l = insertions.length; i < l; i++) {
var insertion = insertions[i];
if (insertion[0] >= offset)
break;
offset += insertion[1];
}
return offset;
}
function getCode(node) {
return code.substring(getOffset(node.range[0]),
getOffset(node.range[1]));
}
function replaceCode(node, str) {
var start = getOffset(node.range[0]),
end = getOffset(node.range[1]);
var insert = 0;
for (var i = insertions.length - 1; i >= 0; i--) {
if (start > insertions[i][0]) {
insert = i + 1;
break;
}
}
insertions.splice(insert, 0, [start, str.length - end + start]);
code = code.substring(0, start) + str + code.substring(end);
}
function walkAST(node, parent) {
if (!node)
return;
for (var key in node) {
if (key === 'range')
continue;
var value = node[key];
if (Array.isArray(value)) {
for (var i = 0, l = value.length; i < l; i++)
walkAST(value[i], node);
} else if (value && typeof value === 'object') {
walkAST(value, node);
}
}
switch (node && node.type) {
case 'BinaryExpression':
if (node.operator in binaryOperators
&& node.left.type !== 'Literal') {
var left = getCode(node.left),
right = getCode(node.right);
replaceCode(node, '_$_(' + left + ', "' + node.operator
+ '", ' + right + ')');
}
break;
case 'AssignmentExpression':
if (/^.=$/.test(node.operator)
&& node.left.type !== 'Literal') {
var left = getCode(node.left),
right = getCode(node.right);
replaceCode(node, left + ' = _$_(' + left + ', "'
+ node.operator[0] + '", ' + right + ')');
}
break;
case 'UpdateExpression':
if (!node.prefix && !(parent && (
parent.type === 'BinaryExpression'
&& /^[=!<>]/.test(parent.operator)
|| parent.type === 'MemberExpression'
&& parent.computed))) {
var arg = getCode(node.argument);
replaceCode(node, arg + ' = _$_(' + arg + ', "'
+ node.operator[0] + '", 1)');
}
break;
case 'UnaryExpression':
if (node.operator in unaryOperators
&& node.argument.type !== 'Literal') {
var arg = getCode(node.argument);
replaceCode(node, '$_("' + node.operator + '", '
+ arg + ')');
}
break;
}
}
walkAST(scope.acorn.parse(code, { ranges: true }));
return code;
}
function evaluate(code, scope) {
paper = scope;
var view = scope.project && scope.project.view,
res;
with (scope) {
(function() {
var onActivate, onDeactivate, onEditOptions,
onMouseDown, onMouseUp, onMouseDrag, onMouseMove,
onKeyDown, onKeyUp, onFrame, onResize;
code = compile(code);
if (root.InstallTrigger) {
var handle = PaperScript.handleException;
if (!handle) {
handle = PaperScript.handleException = function(e) {
throw e.lineNumber >= lineNumber
? new Error(e.message, e.fileName,
e.lineNumber - lineNumber)
: e;
}
var lineNumber = new Error().lineNumber;
lineNumber += (new Error().lineNumber - lineNumber) * 3;
}
try {
res = eval(';' + code);
} catch (e) {
handle(e);
}
} else {
res = eval(code);
}
if (/on(?:Key|Mouse)(?:Up|Down|Move|Drag)/.test(code)) {
Base.each(paper.Tool.prototype._events, function(key) {
var value = eval(key);
if (value) {
scope.getTool()[key] = value;
}
});
}
if (view) {
view.setOnResize(onResize);
view.fire('resize', {
size: view.size,
delta: new Point()
});
if (onFrame)
view.setOnFrame(onFrame);
view.draw();
}
}).call(scope);
}
return res;
}
function load() {
Base.each(document.getElementsByTagName('script'), function(script) {
if (/^text\/(?:x-|)paperscript$/.test(script.type)
&& !script.getAttribute('data-paper-ignore')) {
var canvas = PaperScope.getAttribute(script, 'canvas'),
scope = PaperScope.get(canvas)
|| new PaperScope(script).setup(canvas),
src = script.src;
if (src) {
paper.Http.request('get', src, function(code) {
evaluate(code, scope);
});
} else {
evaluate(script.innerHTML, scope);
}
script.setAttribute('data-paper-ignore', true);
}
}, this);
}
if (document.readyState === 'complete') {
setTimeout(load);
} else {
paper.DomEvent.add(window, { load: load });
}
return PaperScript = {
compile: compile,
evaluate: evaluate,
load: load,
lineNumberBase: 0
};
})(this);