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diff --git a/dist/docs/resources/js/paper.js b/dist/docs/resources/js/paper.js
deleted file mode 100644
index e963d27f..00000000
--- a/dist/docs/resources/js/paper.js
+++ /dev/null
@@ -1,7842 +0,0 @@
-/*!
- * Paper.js v0.22
- *
- * This file is part of Paper.js, a JavaScript Vector Graphics Library,
- * based on Scriptographer.org and designed to be largely API compatible.
- * http://paperjs.org/
- * http://scriptographer.org/
- *
- * Copyright (c) 2011, Juerg Lehni & Jonathan Puckey
- * http://lehni.org/ & http://jonathanpuckey.com/
- *
- * Distributed under the MIT license. See LICENSE file for details.
- *
- * All rights reserved.
- *
- * Date: Thu Nov 10 18:30:18 2011 +0100
- *
- ***
- *
- * Bootstrap.js JavaScript Framework.
- * http://bootstrapjs.org/
- *
- * Copyright (c) 2006 - 2011 Juerg Lehni
- * http://lehni.org/
- *
- * Distributed under the MIT license.
- *
- ***
- *
- * Parse-js
- *
- * A JavaScript tokenizer / parser / generator, originally written in Lisp.
- * Copyright (c) Marijn Haverbeke
- * http://marijn.haverbeke.nl/parse-js/
- *
- * Ported by to JavaScript by Mihai Bazon
- * Copyright (c) 2010, Mihai Bazon
- * http://mihai.bazon.net/blog/
- *
- * Modifications and adaptions to browser (c) 2011, Juerg Lehni
- * http://lehni.org/
- *
- * Distributed under the BSD license.
- */
-
-var paper = new function() {
-
-var Base = new function() {
- var fix = !this.__proto__,
- hidden = /^(statics|generics|preserve|enumerable|prototype|__proto__|toString|valueOf)$/,
- proto = Object.prototype,
- has = fix
- ? function(name) {
- return name !== '__proto__' && this.hasOwnProperty(name);
- }
- : proto.hasOwnProperty,
- toString = proto.toString,
- proto = Array.prototype,
- isArray = Array.isArray = Array.isArray || function(obj) {
- return toString.call(obj) === '[object Array]';
- },
- slice = proto.slice,
- forEach = proto.forEach = proto.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);
- },
- _define = Object.defineProperty,
- _describe = Object.getOwnPropertyDescriptor;
-
- function define(obj, name, desc) {
- if (_define) {
- try {
- delete obj[name];
- return _define(obj, name, desc);
- } catch (e) {}
- }
- if ((desc.get || desc.set) && obj.__defineGetter__) {
- desc.get && obj.__defineGetter__(name, desc.get);
- desc.set && obj.__defineSetter__(name, desc.set);
- } else {
- obj[name] = desc.value;
- }
- return obj;
- }
-
- function describe(obj, name) {
- if (_describe) {
- try {
- return _describe(obj, name);
- } catch (e) {}
- }
- var get = obj.__lookupGetter__ && obj.__lookupGetter__(name);
- return get
- ? { get: get, set: obj.__lookupSetter__(name), enumerable: true,
- configurable: true }
- : has.call(obj, name)
- ? { value: obj[name], enumerable: true, configurable: true,
- writable: true }
- : null;
- }
-
- function inject(dest, src, enumerable, base, preserve, generics) {
- var beans, bean;
-
- function field(name, val, dontCheck, generics) {
- var val = val || (val = describe(src, name))
- && (val.get ? val : val.value),
- func = typeof val === 'function',
- res = val,
- prev = preserve || func
- ? (val && val.get ? name in dest : dest[name]) : null;
- if (generics && func && (!preserve || !generics[name])) {
- generics[name] = function(bind) {
- return bind && dest[name].apply(bind,
- slice.call(arguments, 1));
- }
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- && (!preserve || !prev)) {
- if (func) {
- if (prev && /\bthis\.base\b/.test(val)) {
- var fromBase = base && base[name] == prev;
- res = function() {
- var tmp = describe(this, 'base');
- define(this, 'base', { value: fromBase
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- }
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- var proto = this.prototype,
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- statics = src.statics == true ? src : src.statics;
- if (statics != src)
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- src.preserve, src.generics && this);
- inject(this, statics, true, base, src.preserve);
- }
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- },
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- extend: function(src) {
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- }
- }, true).inject({
- has: has,
- each: each,
-
- inject: function() {
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-
- pick: function() {
- for (var i = 0, l = arguments.length; i < l; i++)
- if (arguments[i] !== undefined)
- return arguments[i];
- return null;
- },
-
- stop: {}
- }
- });
-}
-
-this.Base = Base.inject({
- generics: true,
-
- clone: function() {
- return new this.constructor(this);
- },
-
- toString: function() {
- return '{ ' + Base.each(this, function(value, key) {
- if (key.charAt(0) != '_') {
- var type = typeof value;
- this.push(key + ': ' + (type === 'number'
- ? Base.formatNumber(value)
- : type === 'string' ? "'" + value + "'" : value));
- }
- }, []).join(', ') + ' }';
- },
-
- statics: {
- read: function(list, start, length) {
- var start = start || 0,
- length = length || list.length - start;
- var obj = list[start];
- if (obj instanceof this
- || this.prototype._readNull && obj == null && length <= 1)
- return obj;
- obj = new this(this.dont);
- return obj.initialize.apply(obj, start > 0 || length < list.length
- ? Array.prototype.slice.call(list, start, start + length)
- : list) || obj;
- },
-
- readAll: function(list, start) {
- 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)
- : this.read(list, i, 1));
- }
- return res;
- },
-
- splice: function(list, items, index, remove) {
- var amount = items && items.length,
- append = index === undefined;
- index = append ? list.length : index;
- 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;
- }
- },
-
- merge: function() {
- return Base.each(arguments, function(hash) {
- Base.each(hash, function(value, key) {
- this[key] = value;
- }, this);
- }, new Base(), true);
- },
-
- capitalize: function(str) {
- return str.replace(/\b[a-z]/g, function(match) {
- return match.toUpperCase();
- });
- },
-
- camelize: function(str) {
- return str.replace(/-(\w)/g, function(all, chr) {
- return chr.toUpperCase();
- });
- },
-
- hyphenate: function(str) {
- return str.replace(/[a-z][A-Z0-9]|[0-9][a-zA-Z]|[A-Z]{2}[a-z]/g,
- function(match) {
- return match.charAt(0) + '-' + match.substring(1);
- }
- ).toLowerCase();
- },
-
- formatNumber: function(num) {
- return (Math.round(num * 100000) / 100000).toString();
- }
- }
-});
-
-var PaperScope = this.PaperScope = Base.extend({
-
- initialize: function(script) {
- paper = this;
- this.view = null;
- this.views = [];
- this.project = null;
- this.projects = [];
- this.tool = null;
- this.tools = [];
- this._id = script && (script.getAttribute('id') || script.src)
- || ('paperscope-' + (PaperScope._id++));
- if (script)
- script.setAttribute('id', this._id);
- PaperScope._scopes[this._id] = this;
- },
-
- version: 0.22,
-
- evaluate: function(code) {
- var res = 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,
- writable: true,
- get: function() {
- return that[key];
- }
- });
- });
- for (var key in this) {
- if (!/^(version|_id|load)/.test(key) && !(key in scope))
- scope[key] = this[key];
- }
- },
-
- setup: function(canvas) {
- paper = this;
- this.project = new Project();
- if (canvas)
- this.view = new View(canvas);
- },
-
- clear: function() {
- for (var i = this.projects.length - 1; i >= 0; i--)
- this.projects[i].remove();
- for (var i = this.views.length - 1; i >= 0; i--)
- this.views[i].remove();
- for (var i = this.tools.length - 1; i >= 0; i--)
- this.tools[i].remove();
- },
-
- remove: function() {
- this.clear();
- delete PaperScope._scopes[this._id];
- },
-
- _needsRedraw: function() {
- if (!this._redrawNotified) {
- for (var i = this.views.length - 1; i >= 0; i--)
- this.views[i]._redrawNeeded = true;
- this._redrawNotified = true;
- }
- },
-
- statics: {
- _scopes: {},
- _id: 0,
-
- get: function(id) {
- if (typeof id === 'object')
- id = id.getAttribute('id');
- return this._scopes[id] || null;
- },
-
- each: function(iter) {
- Base.each(this._scopes, iter);
- }
- }
-});
-
-var PaperScopeItem = Base.extend({
-
- 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;
- this._scope[this._reference] = this;
- return true;
- },
-
- 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 Point = this.Point = Base.extend({
- initialize: function(arg0, arg1) {
- if (arg1 !== undefined) {
- this.x = arg0;
- this.y = arg1;
- } else if (arg0 !== undefined) {
- if (arg0 == null) {
- this.x = this.y = 0;
- } else if (arg0.x !== undefined) {
- this.x = arg0.x;
- this.y = arg0.y;
- } else if (arg0.width !== undefined) {
- this.x = arg0.width;
- this.y = arg0.height;
- } else if (Array.isArray(arg0)) {
- this.x = arg0[0];
- this.y = arg0.length > 1 ? arg0[1] : arg0[0];
- } else if (arg0.angle !== undefined) {
- this.x = arg0.length;
- this.y = 0;
- this.setAngle(arg0.angle);
- } else if (typeof arg0 === 'number') {
- this.x = this.y = arg0;
- } else {
- this.x = this.y = 0;
- }
- } else {
- this.x = this.y = 0;
- }
- },
-
- set: function(x, y) {
- this.x = x;
- this.y = y;
- return this;
- },
-
- clone: function() {
- return Point.create(this.x, this.y);
- },
-
- toString: function() {
- var format = Base.formatNumber;
- return '{ x: ' + format(this.x) + ', y: ' + format(this.y) + ' }';
- },
-
- add: function(point) {
- point = Point.read(arguments);
- return Point.create(this.x + point.x, this.y + point.y);
- },
-
- subtract: function(point) {
- point = Point.read(arguments);
- return Point.create(this.x - point.x, this.y - point.y);
- },
-
- multiply: function(point) {
- point = Point.read(arguments);
- return Point.create(this.x * point.x, this.y * point.y);
- },
-
- divide: function(point) {
- point = Point.read(arguments);
- return Point.create(this.x / point.x, this.y / point.y);
- },
-
- modulo: function(point) {
- point = Point.read(arguments);
- return Point.create(this.x % point.x, this.y % point.y);
- },
-
- negate: function() {
- return Point.create(-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 l = this.x * this.x + this.y * this.y;
- return arguments[0] ? l : Math.sqrt(l);
- },
-
- 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 (scale == 0)
- 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 = Point.create(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) {
- if (this._angle == null)
- this._angle = Math.atan2(this.y, this.x);
- return this._angle;
- } else {
- var point = Point.read(arguments),
- div = this.getLength() * point.getLength();
- if (div == 0) {
- 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) {
- angle = angle * Math.PI / 180;
- var point = center ? this.subtract(center) : this,
- s = Math.sin(angle),
- c = Math.cos(angle);
- point = Point.create(
- point.x * c - point.y * s,
- point.y * c + point.x * s
- );
- return center ? point.add(center) : point;
- },
-
- equals: function(point) {
- point = Point.read(arguments);
- return this.x == point.x && this.y == point.y;
- },
-
- isInside: function(rect) {
- return rect.contains(this);
- },
-
- isClose: function(point, tolerance) {
- return this.getDistance(point) < tolerance;
- },
-
- isColinear: function(point) {
- return this.cross(point) < Numerical.TOLERANCE;
- },
-
- isOrthogonal: function(point) {
- return this.dot(point) < Numerical.TOLERANCE;
- },
-
- isZero: function() {
- return this.x == 0 && this.y == 0;
- },
-
- 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 Point.create(0, 0);
- } else {
- var scale = this.dot(point) / point.dot(point);
- return Point.create(
- point.x * scale,
- point.y * scale
- );
- }
- },
-
- statics: {
- create: function(x, y) {
- var point = new Point(Point.dont);
- point.x = x;
- point.y = y;
- return point;
- },
-
- min: function(point1, point2) {
- point1 = Point.read(arguments, 0, 1);
- point2 = Point.read(arguments, 1, 1);
- return Point.create(
- Math.min(point1.x, point2.x),
- Math.min(point1.y, point2.y)
- );
- },
-
- max: function(point1, point2) {
- point1 = Point.read(arguments, 0, 1);
- point2 = Point.read(arguments, 1, 1);
- return Point.create(
- Math.max(point1.x, point2.x),
- Math.max(point1.y, point2.y)
- );
- },
-
- random: function() {
- return Point.create(Math.random(), Math.random());
- }
- }
-}, new function() {
-
- return Base.each(['round', 'ceil', 'floor', 'abs'], function(name) {
- var op = Math[name];
- this[name] = function() {
- return Point.create(op(this.x), op(this.y));
- };
- }, {});
-});
-
-var LinkedPoint = Point.extend({
- 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);
- },
-
- statics: {
- create: function(owner, setter, x, y, dontLink) {
- if (dontLink)
- return Point.create(x, y);
- var point = new LinkedPoint(LinkedPoint.dont);
- point._x = x;
- point._y = y;
- point._owner = owner;
- point._setter = setter;
- return point;
- }
- }
-});
-
-var Size = this.Size = Base.extend({
- initialize: function(arg0, arg1) {
- if (arg1 !== undefined) {
- this.width = arg0;
- this.height = arg1;
- } else if (arg0 !== undefined) {
- if (arg0 == null) {
- this.width = this.height = 0;
- } else if (arg0.width !== undefined) {
- this.width = arg0.width;
- this.height = arg0.height;
- } else if (arg0.x !== undefined) {
- this.width = arg0.x;
- this.height = arg0.y;
- } else if (Array.isArray(arg0)) {
- this.width = arg0[0];
- this.height = arg0.length > 1 ? arg0[1] : arg0[0];
- } else if (typeof arg0 === 'number') {
- this.width = this.height = arg0;
- } else {
- this.width = this.height = 0;
- }
- } else {
- this.width = this.height = 0;
- }
- },
-
- toString: function() {
- var format = Base.formatNumber;
- return '{ width: ' + format(this.width)
- + ', height: ' + format(this.height) + ' }';
- },
-
- set: function(width, height) {
- this.width = width;
- this.height = height;
- return this;
- },
-
- clone: function() {
- return Size.create(this.width, this.height);
- },
-
- add: function(size) {
- size = Size.read(arguments);
- return Size.create(this.width + size.width, this.height + size.height);
- },
-
- subtract: function(size) {
- size = Size.read(arguments);
- return Size.create(this.width - size.width, this.height - size.height);
- },
-
- multiply: function(size) {
- size = Size.read(arguments);
- return Size.create(this.width * size.width, this.height * size.height);
- },
-
- divide: function(size) {
- size = Size.read(arguments);
- return Size.create(this.width / size.width, this.height / size.height);
- },
-
- modulo: function(size) {
- size = Size.read(arguments);
- return Size.create(this.width % size.width, this.height % size.height);
- },
-
- negate: function() {
- return Size.create(-this.width, -this.height);
- },
-
- equals: function(size) {
- size = Size.read(arguments);
- return this.width == size.width && this.height == size.height;
- },
-
- isZero: function() {
- return this.width == 0 && this.height == 0;
- },
-
- isNaN: function() {
- return isNaN(this.width) || isNaN(this.height);
- },
-
- statics: {
- create: function(width, height) {
- return new Size(Size.dont).set(width, height);
- },
-
- min: function(size1, size2) {
- return Size.create(
- Math.min(size1.width, size2.width),
- Math.min(size1.height, size2.height));
- },
-
- max: function(size1, size2) {
- return Size.create(
- Math.max(size1.width, size2.width),
- Math.max(size1.height, size2.height));
- },
-
- random: function() {
- return Size.create(Math.random(), Math.random());
- }
- }
-}, new function() {
-
- return Base.each(['round', 'ceil', 'floor', 'abs'], function(name) {
- var op = Math[name];
- this[name] = function() {
- return Size.create(op(this.width), op(this.height));
- };
- }, {});
-});
-
-var LinkedSize = Size.extend({
- 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);
- },
-
- statics: {
- create: function(owner, setter, width, height, dontLink) {
- if (dontLink)
- return Size.create(width, height);
- var size = new LinkedSize(LinkedSize.dont);
- size._width = width;
- size._height = height;
- size._owner = owner;
- size._setter = setter;
- return size;
- }
- }
-});
-
-var Rectangle = this.Rectangle = Base.extend({
- initialize: function(arg0, arg1, arg2, arg3) {
- if (arguments.length == 4) {
- this.x = arg0;
- this.y = arg1;
- this.width = arg2;
- this.height = arg3;
- } else if (arguments.length == 2) {
- if (arg1 && arg1.x !== undefined) {
- var point1 = Point.read(arguments, 0, 1);
- var point2 = Point.read(arguments, 1, 1);
- this.x = point1.x;
- this.y = point1.y;
- this.width = point2.x - point1.x;
- this.height = point2.y - point1.y;
- if (this.width < 0) {
- this.x = point2.x;
- this.width = -this.width;
- }
- if (this.height < 0) {
- this.y = point2.y;
- this.height = -this.height;
- }
- } else {
- var point = Point.read(arguments, 0, 1);
- var size = Size.read(arguments, 1, 1);
- this.x = point.x;
- this.y = point.y;
- this.width = size.width;
- this.height = size.height;
- }
- } else if (arg0) {
- this.x = arg0.x || 0;
- this.y = arg0.y || 0;
- this.width = arg0.width || 0;
- this.height = arg0.height || 0;
- } else {
- this.x = this.y = this.width = this.height = 0;
- }
- },
-
- set: function(x, y, width, height) {
- this.x = x;
- this.y = y;
- this.width = width;
- this.height = height;
- return this;
- },
-
- getPoint: function() {
- return LinkedPoint.create(this, 'setPoint', this.x, this.y,
- arguments[0]);
- },
-
- setPoint: function(point) {
- point = Point.read(arguments);
- this.x = point.x;
- this.y = point.y;
- return this;
- },
-
- getSize: function() {
- return LinkedSize.create(this, 'setSize', this.width, this.height,
- arguments[0]);
- },
-
- setSize: function(size) {
- size = Size.read(arguments);
- this.width = size.width;
- this.height = size.height;
- return this;
- },
-
- getLeft: function() {
- return this.x;
- },
-
- setLeft: function(left) {
- this.width -= left - this.x;
- this.x = left;
- return this;
- },
-
- getTop: function() {
- return this.y;
- },
-
- setTop: function(top) {
- this.height -= top - this.y;
- this.y = top;
- return this;
- },
-
- getRight: function() {
- return this.x + this.width;
- },
-
- setRight: function(right) {
- this.width = right - this.x;
- return this;
- },
-
- getBottom: function() {
- return this.y + this.height;
- },
-
- setBottom: function(bottom) {
- this.height = bottom - this.y;
- return this;
- },
-
- getCenterX: function() {
- return this.x + this.width * 0.5;
- },
-
- setCenterX: function(x) {
- this.x = x - this.width * 0.5;
- return this;
- },
-
- getCenterY: function() {
- return this.y + this.height * 0.5;
- },
-
- setCenterY: function(y) {
- this.y = y - this.height * 0.5;
- return this;
- },
-
- getCenter: function() {
- return LinkedPoint.create(this, 'setCenter',
- this.getCenterX(), this.getCenterY(), arguments[0]);
- },
-
- setCenter: function(point) {
- point = Point.read(arguments);
- return this.setCenterX(point.x).setCenterY(point.y);
- },
-
- equals: function(rect) {
- rect = Rectangle.read(arguments);
- return this.x == rect.x && this.y == rect.y
- && this.width == rect.width && this.height == rect.height;
- },
-
- isEmpty: function() {
- return this.width == 0 || this.height == 0;
- },
-
- toString: function() {
- var format = Base.formatNumber;
- return '{ x: ' + format(this.x)
- + ', y: ' + format(this.y)
- + ', width: ' + format(this.width)
- + ', height: ' + format(this.height)
- + ' }';
- },
-
- 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;
- },
-
- 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 Rectangle.create(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 Rectangle.create(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 Rectangle.create(x1, y1, x2 - x1, y2 - y1);
- },
-
- expand: function(hor, ver) {
- if (ver === undefined)
- ver = hor;
- return Rectangle.create(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);
- },
-
- statics: {
- create: function(x, y, width, height) {
- return new Rectangle(Rectangle.dont).set(x, y, width, 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 LinkedPoint.create(this, set,
- this[getX](), this[getY](), arguments[0]);
- };
- this[set] = function(point) {
- point = Point.read(arguments);
- return this[setX](point.x)[setY](point.y);
- };
- }, {});
-});
-
-var LinkedRectangle = Rectangle.extend({
- 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;
- },
-
- statics: {
- create: function(owner, setter, x, y, width, height) {
- var rect = new LinkedRectangle(LinkedRectangle.dont).set(
- x, y, width, height, true);
- rect._owner = owner;
- rect._setter = setter;
- return rect;
- }
- }
-}, 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(value) {
- this._dontNotify = true;
- proto[name].apply(this, arguments);
- delete this._dontNotify;
- this._owner[this._setter](this);
- return this;
- };
- }, {})
- );
-});
-
-var Matrix = this.Matrix = Base.extend({
- initialize: function(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._a = this._d = 1;
- this._c = this._b = this._tx = this._ty = 0;
- } else {
- ok = false;
- }
- if (!ok)
- throw new Error('Unsupported matrix parameters');
- },
-
- clone: function() {
- return Matrix.create(this._a, this._c, this._b, this._d,
- this._tx, this._ty);
- },
-
- set: function(a, c, b, d, tx, ty) {
- this._a = a;
- this._c = c;
- this._b = b;
- this._d = d;
- this._tx = tx;
- this._ty = ty;
- return this;
- },
-
- scale: function( hor, ver, center) {
- if (arguments.length < 2 || typeof ver === 'object') {
- center = Point.read(arguments, 1);
- ver = hor;
- } else {
- center = Point.read(arguments, 2);
- }
- if (center)
- this.translate(center);
- this._a *= hor;
- this._c *= hor;
- this._b *= ver;
- this._d *= ver;
- if (center)
- this.translate(center.negate());
- 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;
- return this;
- },
-
- rotate: function(angle, center) {
- return this.concatenate(
- Matrix.getRotateInstance.apply(Matrix, arguments));
- },
-
- shear: function( hor, ver, center) {
- if (arguments.length < 2 || typeof ver === 'object') {
- center = Point.read(arguments, 1);
- ver = hor;
- } else {
- center = Point.read(arguments, 2);
- }
- if (center)
- this.translate(center);
- var a = this._a,
- c = this._c;
- this._a += ver * this._b;
- this._c += ver * this._d;
- this._b += hor * a;
- this._d += hor * c;
- if (center)
- this.translate(center.negate());
- return this;
- },
-
- toString: function() {
- var format = Base.formatNumber;
- return '[[' + [format(this._a), format(this._b),
- format(this._tx)].join(', ') + '], ['
- + [format(this._c), format(this._d),
- format(this._ty)].join(', ') + ']]';
- },
-
- getValues: function() {
- return [ this._a, this._c, this._b, this._d, this._tx, this._ty ];
- },
-
- 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._tx += mx._tx * a + mx._ty * b;
- this._c = mx._a * c + mx._c * d;
- this._d = mx._b * c + mx._d * d;
- this._ty += mx._tx * c + mx._ty * d;
- 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._c = mx._c * a + mx._d * c;
- this._b = mx._a * b + mx._b * d;
- 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;
- return this;
- },
-
- transform: function( src, srcOff, dst, dstOff, numPts) {
- return arguments.length < 5
- ? this._transformPoint(Point.read(arguments))
- : this._transformCoordinates(src, srcOff, dst, dstOff, numPts);
- },
-
- _transformPoint: function(point, dest, dontNotify) {
- var x = point.x,
- y = point.y;
- if (!dest)
- dest = new Point(Point.dont);
- return dest.set(
- x * this._a + y * this._b + this._tx,
- x * this._c + y * this._d + this._ty,
- dontNotify
- );
- },
-
- _transformCoordinates: function(src, srcOff, dst, dstOff, numPts) {
- var i = srcOff, j = dstOff,
- srcEnd = srcOff + 2 * numPts;
- while (i < srcEnd) {
- var x = src[i++];
- var 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) {
- var coords = this._transformCorners(bounds),
- min = coords.slice(0, 2),
- max = coords.slice(0);
- 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;
- }
- return Rectangle.create(min[0], min[1],
- max[0] - min[0], max[1] - min[1]);
- },
-
- inverseTransform: function(point) {
- return this._inverseTransform(Point.read(arguments));
- },
-
- _getDeterminant: function() {
- var det = this._a * this._d - this._b * this._c;
- return isFinite(det) && Math.abs(det) > Numerical.EPSILON
- && 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(Point.dont);
- return dest.set(
- (x * this._d - y * this._b) / det,
- (y * this._a - x * this._c) / det,
- dontNotify
- );
- },
-
- getTranslation: function() {
- return new Point(this._tx, this._ty);
- },
-
- getScaling: function() {
- var hor = Math.sqrt(this._a * this._a + this._c * this._c),
- ver = Math.sqrt(this._b * this._b + this._d * this._d);
- return new Point(this._a < 0 ? -hor : hor, this._b < 0 ? -ver : ver);
- },
-
- getRotation: function() {
- var angle1 = -Math.atan2(this._b, this._d),
- angle2 = Math.atan2(this._c, this._a);
- return Math.abs(angle1 - angle2) < Numerical.TOLERANCE
- ? angle1 * 180 / Math.PI : undefined;
- },
-
- 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();
- },
-
- createInverse: function() {
- var det = this._getDeterminant();
- return det && Matrix.create(
- 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);
- },
-
- createShiftless: function() {
- return Matrix.create(this._a, this._c, this._b, this._d, 0, 0);
- },
-
- setToScale: function(hor, ver) {
- return this.set(hor, 0, 0, ver, 0, 0);
- },
-
- setToTranslation: function(delta) {
- delta = Point.read(arguments);
- return this.set(1, 0, 0, 1, delta.x, delta.y);
- },
-
- setToShear: function(hor, ver) {
- return this.set(1, ver, hor, 1, 0, 0);
- },
-
- setToRotation: 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);
- return this.set(cos, sin, -sin, cos,
- x - x * cos + y * sin,
- y - x * sin - y * cos);
- },
-
- applyToContext: function(ctx, reset) {
- ctx[reset ? 'setTransform' : 'transform'](
- this._a, this._c, this._b, this._d, this._tx, this._ty);
- return this;
- },
-
- statics: {
- create: function(a, c, b, d, tx, ty) {
- return new Matrix(Matrix.dont).set(a, c, b, d, tx, ty);
- },
-
- getScaleInstance: function(hor, ver) {
- var mx = new Matrix();
- return mx.setToScale.apply(mx, arguments);
- },
-
- getTranslateInstance: function(delta) {
- var mx = new Matrix();
- return mx.setToTranslation.apply(mx, arguments);
- },
-
- getShearInstance: function(hor, ver, center) {
- var mx = new Matrix();
- return mx.setToShear.apply(mx, arguments);
- },
-
- getRotateInstance: function(angle, center) {
- var mx = new Matrix();
- return mx.setToRotation.apply(mx, arguments);
- }
- }
-}, 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;
- };
- }, {});
-});
-
-var Line = this.Line = Base.extend({
- initialize: function(point1, point2, infinite) {
- point1 = Point.read(arguments, 0, 1);
- point2 = Point.read(arguments, 1, 1);
- if (arguments.length == 3) {
- this.point = point1;
- this.vector = point2.subtract(point1);
- this.infinite = infinite;
- } else {
- this.point = point1;
- this.vector = point2;
- this.infinite = true;
- }
- },
-
- intersect: function(line) {
- var cross = this.vector.cross(line.vector);
- if (Math.abs(cross) <= Numerical.EPSILON)
- return null;
- var v = line.point.subtract(this.point),
- t1 = v.cross(line.vector) / cross,
- t2 = v.cross(this.vector) / cross;
- return (this.infinite || 0 <= t1 && t1 <= 1)
- && (line.infinite || 0 <= t2 && t2 <= 1)
- ? this.point.add(this.vector.multiply(t1)) : null;
- },
-
- getSide: function(point) {
- var v1 = this.vector,
- v2 = point.subtract(this.point),
- ccw = v2.cross(v1);
- if (ccw == 0) {
- ccw = v2.dot(v1);
- if (ccw > 0) {
- ccw = v2.subtract(v1).dot(v1);
- if (ccw < 0)
- ccw = 0;
- }
- }
- return ccw < 0 ? -1 : ccw > 0 ? 1 : 0;
- },
-
- getDistance: function(point) {
- var m = this.vector.y / this.vector.x,
- b = this.point.y - (m * this.point.x);
- var dist = Math.abs(point.y - (m * point.x) - b) / Math.sqrt(m * m + 1);
- return this.infinite ? dist : Math.min(dist,
- point.getDistance(this.point),
- point.getDistance(this.point.add(this.vector)));
- }
-});
-
-var Project = this.Project = PaperScopeItem.extend({
- _list: 'projects',
- _reference: 'project',
-
- initialize: function() {
- this.base(true);
- this._currentStyle = new PathStyle();
- this._selectedItems = {};
- this._selectedItemCount = 0;
- this.layers = [];
- this.symbols = [];
- this.activeLayer = new Layer();
- },
-
- _needsRedraw: function() {
- if (this._scope)
- this._scope._needsRedraw();
- },
-
- getCurrentStyle: function() {
- return this._currentStyle;
- },
-
- setCurrentStyle: function(style) {
- this._currentStyle.initialize(style);
- },
-
- getIndex: function() {
- return this._index;
- },
-
- getSelectedItems: function() {
- var items = [];
- Base.each(this._selectedItems, function(item) {
- items.push(item);
- });
- return items;
- },
-
- _updateSelection: function(item) {
- if (item._selected) {
- this._selectedItemCount++;
- this._selectedItems[item.getId()] = item;
- } else {
- this._selectedItemCount--;
- delete this._selectedItems[item.getId()];
- }
- },
-
- selectAll: function() {
- for (var i = 0, l = this.layers.length; i < l; i++)
- this.layers[i].setSelected(true);
- },
-
- deselectAll: function() {
- for (var i in this._selectedItems)
- this._selectedItems[i].setSelected(false);
- },
-
- hitTest: function(point, options) {
- options = HitResult.getOptions(point, options);
- point = options.point;
- for (var i = this.layers.length - 1; i >= 0; i--) {
- var res = this.layers[i].hitTest(point, options);
- if (res) return res;
- }
- return null;
- },
-
- draw: function(ctx) {
- ctx.save();
- var param = { offset: new Point(0, 0) };
- for (var i = 0, l = this.layers.length; i < l; i++)
- Item.draw(this.layers[i], ctx, param);
- ctx.restore();
-
- if (this._selectedItemCount > 0) {
- ctx.save();
- ctx.strokeWidth = 1;
- ctx.strokeStyle = ctx.fillStyle = '#009dec';
- param = { selection: true };
- Base.each(this._selectedItems, function(item) {
- item.draw(ctx, param);
- });
- ctx.restore();
- }
- }
-});
-
-var Symbol = this.Symbol = Base.extend({
- initialize: function(item) {
- this.project = paper.project;
- this.project.symbols.push(this);
- this.setDefinition(item);
- this._instances = {};
- },
-
- _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.setPosition(new Point());
- item._parentSymbol = this;
- this._changed(Change.GEOMETRY);
- },
-
- place: function(position) {
- return new PlacedSymbol(this, position);
- },
-
- clone: function() {
- return new Symbol(this._definition.clone());
- }
-});
-
-var ChangeFlag = {
- APPEARANCE: 1,
- HIERARCHY: 2,
- GEOMETRY: 4,
- STROKE: 8,
- STYLE: 16,
- ATTRIBUTE: 32,
- CONTENT: 64,
- PIXELS: 128,
- CLIPPING: 256
-};
-
-var Change = {
- HIERARCHY: ChangeFlag.HIERARCHY | ChangeFlag.APPEARANCE,
- GEOMETRY: ChangeFlag.GEOMETRY | ChangeFlag.APPEARANCE,
- STROKE: ChangeFlag.STROKE | ChangeFlag.STYLE | ChangeFlag.APPEARANCE,
- STYLE: ChangeFlag.STYLE | ChangeFlag.APPEARANCE,
- ATTRIBUTE: ChangeFlag.ATTRIBUTE | ChangeFlag.APPEARANCE,
- CONTENT: ChangeFlag.CONTENT | ChangeFlag.APPEARANCE,
- PIXELS: ChangeFlag.PIXELS | ChangeFlag.APPEARANCE
-};
-
-var Item = this.Item = Base.extend({
- initialize: function() {
- this._id = ++Item._id;
- if (!this._project)
- paper.project.activeLayer.addChild(this);
- this._style = PathStyle.create(this);
- this.setStyle(this._project.getCurrentStyle());
- },
-
- _changed: function(flags) {
- if (flags & ChangeFlag.GEOMETRY) {
- delete this._bounds;
- delete this._position;
- }
- if (flags & ChangeFlag.APPEARANCE) {
- this._project._needsRedraw();
- }
- if (this._parentSymbol)
- this._parentSymbol._changed(flags);
- if (this._project._changes) {
- var entry = this._project._changesById[this._id];
- if (entry) {
- entry.flags |= flags;
- } else {
- entry = { item: this, flags: flags };
- this._project._changesById[this._id] = entry;
- this._project._changes.push(entry);
- }
- }
- },
-
- getId: function() {
- return this._id;
- },
-
- getName: function() {
- return this._name;
- },
-
- setName: function(name) {
-
- if (this._name)
- this._removeFromNamed();
- this._name = name || undefined;
- if (name) {
- var children = this._parent._children,
- namedChildren = this._parent._namedChildren;
- (namedChildren[name] = namedChildren[name] || []).push(this);
- children[name] = this;
- }
- this._changed(ChangeFlag.ATTRIBUTE);
- },
-
- getPosition: function() {
- var pos = this._position
- || (this._position = this.getBounds().getCenter());
- return LinkedPoint.create(this, 'setPosition', pos._x, pos._y);
- },
-
- setPosition: function(point) {
- this.translate(Point.read(arguments).subtract(this.getPosition()));
- },
-
- getStyle: function() {
- return this._style;
- },
-
- setStyle: function(style) {
- this._style.initialize(style);
- },
-
- statics: {
- _id: 0
- }
-}, new function() {
- return 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'
- ? ChangeFlag.ATTRIBUTE : Change.ATTRIBUTE);
- }
- };
- }, {});
-}, {
-
- _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) {
- for (var i = 0, l = this._children.length; i < l; i++) {
- this._children[i].setSelected(selected);
- }
- } else if ((selected = !!selected) != this._selected) {
- this._selected = selected;
- this._project._updateSelection(this);
- this._changed(Change.ATTRIBUTE);
- }
- },
-
- _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);
- },
-
- 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(Change.ATTRIBUTE);
- if (this._parent)
- this._parent._changed(ChangeFlag.CLIPPING);
- }
- },
-
- _clipMask: false,
-
- getProject: function() {
- return this._project;
- },
-
- _setProject: function(project) {
- if (this._project != project) {
- this._project = project;
- 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;
- },
-
- 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;
- },
-
- clone: function() {
- return this._clone(new this.constructor());
- },
-
- _clone: function(copy) {
- copy.setStyle(this._style);
- if (this._children) {
- for (var i = 0, l = this._children.length; i < l; i++)
- copy.addChild(this._children[i].clone());
- }
- 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.setSelected(this._selected);
- if (this._name)
- copy.setName(this._name);
- return copy;
- },
-
- copyTo: function(itemOrProject) {
- var copy = this.clone();
- if (itemOrProject.layers) {
- itemOrProject.activeLayer.addChild(copy);
- } else {
- itemOrProject.addChild(copy);
- }
- return copy;
- },
-
- rasterize: function(resolution) {
- var bounds = this.getStrokeBounds(),
- scale = (resolution || 72) / 72,
- canvas = CanvasProvider.getCanvas(bounds.getSize().multiply(scale)),
- ctx = canvas.getContext('2d'),
- matrix = new Matrix().scale(scale).translate(-bounds.x, -bounds.y);
- matrix.applyToContext(ctx);
- this.draw(ctx, {});
- var raster = new Raster(canvas);
- raster.setBounds(bounds);
- return raster;
- },
-
- hitTest: function(point, options, matrix) {
- options = HitResult.getOptions(point, options);
- point = options.point;
- if (!this._children && !this.getRoughBounds(matrix)
- .expand(options.tolerance)._containsPoint(point))
- return null;
- if ((options.center || options.bounds) &&
- !(this instanceof Layer && !this._parent)) {
- var bounds = this.getBounds(),
- that = this,
- points = ['TopLeft', 'TopRight', 'BottomLeft', 'BottomRight',
- 'LeftCenter', 'TopCenter', 'RightCenter', 'BottomCenter'],
- res;
- function checkBounds(type, part) {
- var pt = bounds['get' + part]().transform(matrix);
- if (point.getDistance(pt) < options.tolerance)
- return new HitResult(type, that,
- { name: Base.hyphenate(part), point: pt });
- }
- if (options.center && (res = checkBounds('center', 'Center')))
- return res;
- if (options.bounds) {
- for (var i = 0; i < 8; i++)
- if (res = checkBounds('bounds', points[i]))
- return res;
- }
- }
-
- return this._children || !(options.guides && !this._guide
- || options.selected && !this._selected)
- ? this._hitTest(point, options, matrix) : null;
- },
-
- _hitTest: function(point, options, matrix) {
- if (this._children) {
- for (var i = this._children.length - 1; i >= 0; i--) {
- var res = this._children[i].hitTest(point, options, matrix);
- if (res) return res;
- }
- }
- },
-
- addChild: function(item) {
- return this.insertChild(undefined, item);
- },
-
- insertChild: function(index, item) {
- if (this._children) {
- item._remove(false, true);
- Base.splice(this._children, [item], index, 0);
- item._parent = this;
- item._setProject(this._project);
- if (item._name)
- item.setName(item._name);
- this._changed(Change.HIERARCHY);
- return true;
- }
- return false;
- },
-
- addChildren: function(items) {
- for (var i = 0, l = items && items.length; i < l; i++)
- this.insertChild(undefined, items[i]);
- },
-
- insertChildren: function(index, items) {
- for (var i = 0, l = items && items.length; i < l; i++) {
- if (this.insertChild(index, items[i]))
- index++;
- }
- },
-
- insertAbove: function(item) {
- return item._parent && item._parent.insertChild(
- item._index + 1, this);
- },
-
- insertBelow: function(item) {
- return item._parent && item._parent.insertChild(
- item._index - 1, this);
- },
-
- appendTop: function(item) {
- return this.addChild(item);
- },
-
- appendBottom: function(item) {
- return this.insertChild(0, item);
- },
-
- moveAbove: function(item) {
- return this.insertAbove(item);
- },
-
- moveBelow: function(item) {
- return this.insertBelow(item);
- },
-
- _removeFromNamed: 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(deselect, notify) {
- if (this._parent) {
- if (deselect)
- this.setSelected(false);
- if (this._name)
- this._removeFromNamed();
- Base.splice(this._parent._children, null, this._index, 1);
- if (notify)
- this._parent._changed(Change.HIERARCHY);
- this._parent = null;
- return true;
- }
- return false;
- },
-
- remove: function() {
- return this._remove(true, true);
- },
-
- removeChildren: function(from, to) {
- if (!this._children)
- return null;
- from = from || 0;
- to = Base.pick(to, this._children.length);
- var removed = this._children.splice(from, to - from);
- for (var i = removed.length - 1; i >= 0; i--)
- removed[i]._remove(true, false);
- if (removed.length > 0)
- this._changed(Change.HIERARCHY);
- return removed;
- },
-
- 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(Change.HIERARCHY);
- }
- },
-
- 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
- && (parent instanceof Group || parent instanceof CompoundPath)
- && item.isDescendant(parent))
- return true;
- parent = parent._parent;
- }
- return false;
- },
-
- _getBounds: function(getter, cacheName, args) {
- 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) {
- var rect = child[getter](args[0]);
- 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);
- }
- }
- var bounds = Rectangle.create(x1, y1, x2 - x1, y2 - y1);
- return getter == 'getBounds' ? this._createBounds(bounds) : bounds;
- },
-
- _createBounds: function(rect) {
- return LinkedRectangle.create(this, 'setBounds',
- rect.x, rect.y, rect.width, rect.height);
- },
-
- getBounds: function() {
- return this._getBounds('getBounds', '_bounds', arguments);
- },
-
- 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);
- },
-
- getStrokeBounds: function() {
- return this._getBounds('getStrokeBounds', '_strokeBounds', arguments);
- },
-
- getHandleBounds: function() {
- return this._getBounds('getHandleBounds', '_handleBounds', arguments);
- },
-
- getRoughBounds: function() {
- return this._getBounds('getRoughBounds', '_roughBounds', arguments);
- },
-
- 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()));
- },
-
- translate: function(delta) {
- 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()));
- },
-
- 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()));
- },
-
- transform: function(matrix, flags) {
- var bounds = this._bounds,
- position = this._position,
- children = this._children;
- if (this._transform) {
- this._transform(matrix, flags);
- this._changed(Change.GEOMETRY);
- }
- if (bounds && matrix.getRotation() % 90 === 0) {
- this._bounds = this._createBounds(
- matrix._transformBounds(bounds));
- this._position = this._bounds.getCenter();
- } else if (position) {
- this._position = matrix._transformPoint(position, position, true);
- }
- for (var i = 0, l = children && children.length; i < l; i++)
- children[i].transform(matrix, flags);
- return this;
- },
-
- 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,
- delta = rectangle.getCenter().subtract(bounds.getCenter()),
- newBounds = new Rectangle(new Point(),
- new Size(bounds.width * scale, bounds.height * scale));
- newBounds.setCenter(rectangle.getCenter());
- this.setBounds(newBounds);
- },
-
- toString: function() {
- return (this.constructor._name || 'Item') + (this._name
- ? " '" + this._name + "'"
- : ' @' + this._id);
- },
-
- statics: {
- drawSelectedBounds: function(bounds, ctx, matrix) {
- var coords = matrix._transformCorners(bounds);
- 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();
- }
- },
-
- draw: function(item, ctx, param) {
- if (!item._visible || item._opacity == 0)
- return;
-
- var tempCanvas, parentCtx;
- if (item._blendMode !== 'normal'
- || item._opacity < 1
- && !(item._segments && (!item.getFillColor()
- || !item.getStrokeColor()))) {
- var bounds = item.getStrokeBounds() || item.getBounds();
- if (!bounds.width || !bounds.height)
- return;
-
- var itemOffset = bounds.getTopLeft().floor(),
- size = bounds.getSize().ceil().add(new Size(1, 1));
- tempCanvas = CanvasProvider.getCanvas(size);
-
- parentCtx = ctx;
-
- ctx = tempCanvas.getContext('2d');
- ctx.save();
-
- ctx.translate(-itemOffset.x, -itemOffset.y);
- }
- var savedOffset;
- if (itemOffset) {
- savedOffset = param.offset;
- param.offset = itemOffset;
- }
- item.draw(ctx, param);
- if (itemOffset)
- param.offset = savedOffset;
-
- if (tempCanvas) {
-
- ctx.restore();
-
- if (item._blendMode !== 'normal') {
- var pixelOffset = itemOffset.subtract(param.offset);
- BlendMode.process(item._blendMode, ctx, parentCtx,
- item._opacity, pixelOffset);
- } else {
- parentCtx.save();
- parentCtx.globalAlpha = item._opacity;
- parentCtx.drawImage(tempCanvas,
- itemOffset.x, itemOffset.y);
- parentCtx.restore();
- }
-
- CanvasProvider.returnCanvas(tempCanvas);
- }
- }
- }
-}, new function() {
-
- var sets = {
- down: {}, drag: {}, up: {}, move: {}
- };
-
- function removeAll(set) {
- for (var id in set) {
- var item = set[id];
- item.remove();
- for (var type in sets) {
- var other = sets[type];
- if (other != set && other[item.getId()])
- delete other[item.getId()];
- }
- }
- }
-
- function installHandler(name) {
- var handler = 'onMouse' + Base.capitalize(name);
- var func = paper.tool[handler];
- if (!func || !func._installed) {
- var hash = {};
- hash[handler] = function(event) {
- if (name === 'up')
- sets.drag = {};
- removeAll(sets[name]);
- sets[name] = {};
- if (this.base)
- this.base(event);
- };
- paper.tool.inject(hash);
- paper.tool[handler]._installed = true;
- }
- }
-
- return 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]) {
- sets[name][this.getId()] = this;
- if (name === 'drag')
- installHandler('up');
- installHandler(name);
- }
- }
- return this;
- }
- });
-});
-
-var Group = this.Group = Item.extend({
- initialize: function(items) {
- this.base();
- this._children = [];
- this._namedChildren = {};
- this.addChildren(!items || !Array.isArray(items)
- || typeof items[0] !== 'object' ? arguments : items);
- },
-
- _changed: function(flags) {
- Item.prototype._changed.call(this, flags);
- if (flags & (ChangeFlag.HIERARCHY | ChangeFlag.CLIPPING)) {
- 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);
- return this;
- },
-
- draw: function(ctx, param) {
- var clipItem = this._getClipItem();
- if (clipItem)
- Item.draw(clipItem, ctx, param);
- for (var i = 0, l = this._children.length; i < l; i++) {
- var item = this._children[i];
- if (item != clipItem)
- Item.draw(item, ctx, param);
- }
- }
-});
-
-var Layer = this.Layer = Group.extend({
- initialize: function(items) {
- this._project = paper.project;
- this._index = this._project.layers.push(this) - 1;
- this.base.apply(this, arguments);
- this.activate();
- },
-
- _remove: function(deselect, notify) {
- if (this._parent)
- return this.base(deselect, notify);
- if (this._index != null) {
- if (deselect)
- this.setSelected(false);
- Base.splice(this._project.layers, null, this._index, 1);
- this._project._needsRedraw();
- return true;
- }
- return false;
- },
-
- getNextSibling: function() {
- return this._parent ? this.base()
- : this._project.layers[this._index + 1] || null;
- },
-
- getPreviousSibling: function() {
- return this._parent ? this.base()
- : this._project.layers[this._index - 1] || null;
- },
-
- activate: function() {
- this._project.activeLayer = this;
- }
-}, new function () {
- function insert(above) {
- return function(item) {
- if (item instanceof Layer && !item._parent
- && this._remove(false, true)) {
- Base.splice(item._project.layers, [this],
- item._index + (above ? 1 : -1), 0);
- this._setProject(item._project);
- return true;
- }
- return this.base(item);
- };
- }
-
- return {
- insertAbove: insert(true),
-
- insertBelow: insert(false)
- };
-});
-
-var PlacedItem = this.PlacedItem = Item.extend({
-
- _transform: function(matrix, flags) {
- this._matrix.preConcatenate(matrix);
- },
-
- _changed: function(flags) {
- Item.prototype._changed.call(this, flags);
- if (flags & ChangeFlag.GEOMETRY) {
- delete this._strokeBounds;
- delete this._handleBounds;
- delete this._roughBounds;
- }
- },
-
- getMatrix: function() {
- return this._matrix;
- },
-
- setMatrix: function(matrix) {
- this._matrix = matrix.clone();
- this._changed(Change.GEOMETRY);
- },
-
- getBounds: function() {
- var useCache = arguments[0] === undefined;
- if (useCache && this._bounds)
- return this._bounds;
- var bounds = this.getStrokeBounds(arguments[0]);
- if (useCache)
- bounds = this._bounds = this._createBounds(bounds);
- return bounds;
- },
-
- _getBounds: function(getter, cacheName, args) {
- var matrix = args[0],
- useCache = matrix === undefined;
- if (useCache && this[cacheName])
- return this[cacheName];
- matrix = matrix ? matrix.clone().concatenate(this._matrix)
- : this._matrix;
- var bounds = this._calculateBounds(getter, matrix);
- if (useCache)
- this[cacheName] = bounds;
- return bounds;
- }
-});
-
-var Raster = this.Raster = PlacedItem.extend({
- initialize: function(object) {
- this.base();
- if (object.getContext) {
- this.setCanvas(object);
- } else {
- if (typeof object === 'string')
- object = document.getElementById(object);
- this.setImage(object);
- }
- this._matrix = new Matrix();
- },
-
- clone: function() {
- var image = this._image;
- if (!image) {
- image = CanvasProvider.getCanvas(this._size);
- image.getContext('2d').drawImage(this._canvas, 0, 0);
- }
- var copy = new Raster(image);
- copy._matrix = this._matrix.clone();
- return this._clone(copy);
- },
-
- getSize: function() {
- return this._size;
- },
-
- setSize: function() {
- var size = Size.read(arguments),
- image = this.getImage();
- this.setCanvas(CanvasProvider.getCanvas(size));
- this.getContext(true).drawImage(image, 0, 0, size.width, size.height);
- },
-
- getWidth: function() {
- return this._size.width;
- },
-
- getHeight: function() {
- return this._size.height;
- },
-
- 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()
- );
- },
-
- getContext: function() {
- if (!this._context)
- this._context = this.getCanvas().getContext('2d');
- if (arguments[0])
- this._changed(Change.PIXELS);
- return this._context;
- },
-
- setContext: function(context) {
- this._context = context;
- },
-
- getCanvas: function() {
- if (!this._canvas) {
- this._canvas = CanvasProvider.getCanvas(this._size);
- if (this._image)
- this.getContext(true).drawImage(this._image, 0, 0);
- }
- return this._canvas;
- },
-
- setCanvas: function(canvas) {
- if (this._canvas)
- CanvasProvider.returnCanvas(this._canvas);
- this._canvas = canvas;
- this._size = new Size(canvas.width, canvas.height);
- this._image = null;
- this._context = null;
- this._changed(Change.GEOMETRY);
- },
-
- getImage: function() {
- return this._image || this.getCanvas();
- },
-
- setImage: function(image) {
- if (this._canvas)
- CanvasProvider.returnCanvas(this._canvas);
- this._image = image;
- this._size = new Size(image.naturalWidth, image.naturalHeight);
- this._canvas = null;
- this._context = null;
- this._changed(Change.GEOMETRY);
- },
-
- getSubImage: function(rect) {
- rect = Rectangle.read(arguments);
- var canvas = CanvasProvider.getCanvas(rect.getSize());
- canvas.getContext('2d').drawImage(this.getCanvas(), rect.x, rect.y,
- canvas.width, canvas.height, 0, 0, canvas.width, canvas.height);
- return canvas;
- },
-
- drawImage: function(image, point) {
- point = Point.read(arguments, 1);
- this.getContext(true).drawImage(image, point.x, point.y);
- },
-
- getAverageColor: function(object) {
- if (!object)
- object = this.getBounds();
- var bounds, path;
- if (object instanceof PathItem) {
- path = object;
- bounds = object.getBounds();
- } else if (object.width) {
- bounds = new Rectangle(object);
- } else if (object.x) {
- bounds = Rectangle.create(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.getCanvas(
- new Size(sampleSize)).getContext('2d');
- } else {
- ctx.clearRect(0, 0, sampleSize, sampleSize);
- }
- ctx.save();
- ctx.scale(width / bounds.width, height / bounds.height);
- ctx.translate(-bounds.x, -bounds.y);
- if (path)
- path.draw(ctx, { clip: true });
- this._matrix.applyToContext(ctx);
- ctx.drawImage(this._canvas || this._image,
- -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 pixels = this.getContext().getImageData(point.x, point.y, 1, 1).data,
- channels = new Array(4);
- for (var i = 0; i < 4; i++)
- channels[i] = pixels[i] / 255;
- return RgbColor.read(channels);
- },
-
- setPixel: function(point, color) {
- var hasPoint = arguments.length == 2;
- point = Point.read(arguments, 0, hasPoint ? 1 : 2);
- color = Color.read(arguments, hasPoint ? 1 : 2);
- var ctx = this.getContext(true),
- imageData = ctx.createImageData(1, 1),
- alpha = color.getAlpha();
- imageData.data[0] = color.getRed() * 255;
- imageData.data[1] = color.getGreen() * 255;
- imageData.data[2] = color.getBlue() * 255;
- imageData.data[3] = alpha != null ? alpha * 255 : 255;
- ctx.putImageData(imageData, point.x, point.y);
- },
-
- createData: function(size) {
- size = Size.read(arguments);
- return this.getContext().createImageData(size.width, size.height);
- },
-
- getData: function(rect) {
- rect = Rectangle.read(arguments);
- if (rect.isEmpty())
- rect = new Rectangle(this.getSize());
- return this.getContext().getImageData(rect.x, rect.y,
- rect.width, rect.height);
- },
-
- setData: function(data, point) {
- point = Point.read(arguments, 1);
- this.getContext(true).putImageData(data, point.x, point.y);
- },
-
- _calculateBounds: function(getter, matrix) {
- return matrix._transformBounds(
- new Rectangle(this._size).setCenter(0, 0));
- },
-
- getHandleBounds: function() {
- return this.getStrokeBounds(arguments[0]);
- },
-
- getRoughBounds: function() {
- return this.getStrokeBounds(arguments[0]);
- },
-
- draw: function(ctx, param) {
- if (param.selection) {
- var bounds = new Rectangle(this._size).setCenter(0, 0);
- Item.drawSelectedBounds(bounds, ctx, this._matrix);
- } else {
- ctx.save();
- this._matrix.applyToContext(ctx);
- ctx.drawImage(this._canvas || this._image,
- -this._size.width / 2, -this._size.height / 2);
- ctx.restore();
- }
- }
-});
-
-var PlacedSymbol = this.PlacedSymbol = PlacedItem.extend({
- initialize: function(symbol, matrixOrOffset) {
- this.base();
- this.setSymbol(symbol instanceof Symbol ? symbol : new Symbol(symbol));
- this._matrix = matrixOrOffset !== undefined
- ? matrixOrOffset instanceof Matrix
- ? matrixOrOffset
- : new Matrix().translate(Point.read(arguments, 1))
- : new Matrix();
- },
-
- 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() {
- return this._clone(new PlacedSymbol(this.symbol, this._matrix.clone()));
- },
-
- _calculateBounds: function(getter, matrix) {
- return this.symbol._definition[getter](matrix);
- },
-
- draw: function(ctx, param) {
- if (param.selection) {
- Item.drawSelectedBounds(this.symbol._definition.getStrokeBounds(),
- ctx, this._matrix);
- } else {
- ctx.save();
- this._matrix.applyToContext(ctx);
- Item.draw(this.symbol.getDefinition(), ctx, param);
- ctx.restore();
- }
- }
-
-});
-
-HitResult = Base.extend({
- initialize: function(type, item, values) {
- this.type = type;
- this.item = item;
- if (values) {
- Base.each(values, function(value, key) {
- this[key] = value;
- }, this);
- }
- },
-
- statics: {
- getOptions: function(point, options) {
- return options && options._merged ? options : Base.merge({
- point: Point.read(arguments, 0, 1),
- type: null,
- tolerance: 2,
- fill: !options,
- stroke: !options,
- segments: !options,
- handles: false,
- ends: false,
- center: false,
- bounds: false,
- guides: false,
- selected: false,
- _merged: true
- }, options);
- }
- }
-});
-
-var Segment = this.Segment = Base.extend({
- initialize: function(arg0, arg1, arg2, arg3, arg4, arg5) {
- var count = arguments.length,
- createPoint = SegmentPoint.create,
- 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 < 6) {
- if (count == 2 && arg1.x === undefined) {
- point = [ arg0, arg1 ];
- } else {
- point = arg0;
- handleIn = arg1;
- handleOut = arg2;
- }
- } else if (count == 6) {
- point = [ arg0, arg1 ];
- handleIn = [ arg2, arg3 ];
- handleOut = [ arg4, arg5 ];
- }
- createPoint(this, '_point', point);
- createPoint(this, '_handleIn', handleIn);
- createPoint(this, '_handleOut', handleOut);
- },
-
- _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(Change.GEOMETRY);
- },
-
- 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);
- },
-
- _isSelected: function(point) {
- var state = this._selectionState;
- return point == this._point ? !!(state & SelectionState.POINT)
- : point == this._handleIn ? !!(state & SelectionState.HANDLE_IN)
- : point == this._handleOut ? !!(state & SelectionState.HANDLE_OUT)
- : false;
- },
-
- _setSelected: function(point, selected) {
- var path = this._path,
- selected = !!selected,
- state = this._selectionState || 0,
- selection = [
- !!(state & SelectionState.POINT),
- !!(state & SelectionState.HANDLE_IN),
- !!(state & SelectionState.HANDLE_OUT)
- ];
- 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;
- path._changed(Change.ATTRIBUTE);
- }
- }
- this._selectionState = (selection[0] ? SelectionState.POINT : 0)
- | (selection[1] ? SelectionState.HANDLE_IN : 0)
- | (selection[2] ? SelectionState.HANDLE_OUT : 0);
- if (path && state != this._selectionState)
- path._updateSelection(this, state, this._selectionState);
- },
-
- 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() {
- if (this._path) {
- var index = this._index;
- if (!this._path._closed && index == this._path._segments.length - 1)
- index--;
- return this._path.getCurves()[index] || null;
- }
- return 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;
- },
-
- 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)
- return;
- 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;
- }
- }
- }
-});
-
-var SegmentPoint = Point.extend({
- set: function(x, y) {
- this._x = x;
- this._y = y;
- this._owner._changed(this);
- return this;
- },
-
- 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 this._x == 0 && this._y == 0;
- },
-
- setSelected: function(selected) {
- this._owner._setSelected(this, selected);
- },
-
- isSelected: function() {
- return this._owner._isSelected(this);
- },
-
- statics: {
- create: function(segment, key, pt) {
- var point = new SegmentPoint(SegmentPoint.dont),
- x, y, selected;
- if (!pt) {
- x = y = 0;
- } else if ((x = pt[0]) !== undefined) {
- y = pt[1];
- } else {
- if ((x = pt.x) === undefined) {
- pt = Point.read(arguments, 2, 1);
- x = pt.x;
- }
- y = pt.y;
- selected = pt.selected;
- }
- point._x = x;
- point._y = y;
- point._owner = segment;
- segment[key] = point;
- if (selected)
- point.setSelected(true);
- return point;
- }
- }
-});
-
-var SelectionState = {
- HANDLE_IN: 1,
- HANDLE_OUT: 2,
- POINT: 4
-};
-
-var Curve = this.Curve = Base.extend({
- initialize: function(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7) {
- var count = arguments.length;
- 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 if (count == 4) {
- this._segment1 = new Segment(arg0, null, arg1);
- this._segment2 = new Segment(arg3, arg2, null);
- } else if (count == 8) {
- var p1 = Point.create(arg0, arg1),
- p2 = Point.create(arg6, arg7);
- this._segment1 = new Segment(p1, null,
- Point.create(arg2, arg3).subtract(p1));
- this._segment2 = new Segment(p2,
- Point.create(arg4, arg5).subtract(p2), null);
- }
- },
-
- _changed: function() {
- delete this._length;
- },
-
- 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(matrix) {
- return Curve.getValues(this._segment1, this._segment2, matrix);
- },
-
- getPoints: function(matrix) {
- var coords = this.getValues(matrix),
- points = [];
- for (var i = 0; i < 8; i += 2)
- points.push(Point.create(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;
- },
-
- getPart: function(from, to) {
- return new Curve(Curve.getPart(this.getValues(), from, to));
- },
-
- isLinear: function() {
- return this._segment1._handleOut.isZero()
- && this._segment2._handleIn.isZero();
- },
-
- getParameterAt: function(offset, start) {
- return Curve.getParameterAt(this.getValues(), offset,
- start !== undefined ? start : offset < 0 ? 1 : 0);
- },
-
- getPoint: function(parameter) {
- return Curve.evaluate(this.getValues(), parameter, 0);
- },
-
- getTangent: function(parameter) {
- return Curve.evaluate(this.getValues(), parameter, 1);
- },
-
- getNormal: function(parameter) {
- return Curve.evaluate(this.getValues(), parameter, 2);
- },
-
- getParameter: function(point) {
- point = Point.read(point);
- return Curve.getParameter(this.getValues(), point.x, point.y);
- },
-
- getCrossings: function(point, matrix, roots) {
- var vals = this.getValues(matrix),
- num = Curve.solveCubic(vals, 1, point.y, roots),
- crossings = 0;
- for (var i = 0; i < num; i++) {
- var t = roots[i];
- if (t >= 0 && t < 1 && Curve.evaluate(vals, t, 0).x > point.x) {
- if (t < Numerical.TOLERANCE && Curve.evaluate(
- this.getPrevious().getValues(matrix), 1, 1).y
- * Curve.evaluate(vals, t, 1).y >= 0)
- continue;
- crossings++;
- }
- }
- return crossings;
- },
-
- reverse: function() {
- return new Curve(this._segment2.reverse(), this._segment1.reverse());
- },
-
- 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: {
- create: function(path, segment1, segment2) {
- var curve = new Curve(Curve.dont);
- curve._path = path;
- curve._segment1 = segment1;
- curve._segment2 = segment2;
- return curve;
- },
-
- getValues: function(segment1, segment2, matrix) {
- var p1 = segment1._point,
- h1 = segment1._handleOut,
- h2 = segment2._handleIn,
- p2 = segment2._point,
- coords = [
- p1._x, p1._y,
- p1._x + h1._x, p1._y + h1._y,
- p2._x + h2._x, p2._y + h2._y,
- p2._x, p2._y
- ];
- return matrix
- ? matrix._transformCoordinates(coords, 0, coords, 0, 4)
- : coords;
- },
-
- 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 tMin = Numerical.TOLERANCE;
- if (t < tMin && c1x == p1x && c1y == p1y)
- t = tMin;
- else if (t > 1 - tMin && c2x == p2x && c2y == p2y)
- t = 1 - tMin;
- 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;
-
- switch (type) {
- case 0:
- x = ((ax * t + bx) * t + cx) * t + p1x;
- y = ((ay * t + by) * t + cy) * t + p1y;
- break;
- case 1:
- case 2:
- x = (3 * ax * t + 2 * bx) * t + cx;
- y = (3 * ay * t + 2 * by) * t + cy;
- break;
- }
- }
- 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) {
- 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,
- Numerical.TOLERANCE);
- },
-
- getParameter: function(v, x, y) {
- 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) < Numerical.TOLERANCE)
- 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;
- },
-
- isFlatEnough: 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],
-
- a = p1y - p2y,
- b = p2x - p1x,
- c = p1x * p2y - p2x * p1y,
- v1 = a * c1x + b * c1y + c,
- v2 = a * c2x + b * c2y + c;
- return Math.abs((v1 * v1 + v2 * v2) / (a * (a * a + b * b))) < 0.005;
- }
- }
-}, 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;
- if (v[0] == v[2] && v[1] == v[3] && v[6] == v[4] && 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, Numerical.TOLERANCE);
- }
- };
-}, new function() {
-
- var maxDepth = 32,
- epsilon = Math.pow(2, -maxDepth - 1);
-
- var zCubic = [
- [1.0, 0.6, 0.3, 0.1],
- [0.4, 0.6, 0.6, 0.4],
- [0.1, 0.3, 0.6, 1.0]
- ];
-
- var xAxis = new Line(new Point(0, 0), new Point(1, 0));
-
- function toBezierForm(v, point) {
- var n = 3,
- degree = 5,
- c = [],
- d = [],
- cd = [],
- w = [];
- for(var i = 0; i <= n; i++) {
- c[i] = v[i].subtract(point);
- if (i < n)
- d[i] = v[i + 1].subtract(v[i]).multiply(n);
- }
-
- for (var row = 0; row < n; row++) {
- cd[row] = [];
- for (var column = 0; column <= n; column++)
- cd[row][column] = d[row].dot(c[column]);
- }
-
- for (var i = 0; i <= degree; i++)
- w[i] = new Point(i / degree, 0);
-
- for (k = 0; k <= degree; k++) {
- var lb = Math.max(0, k - n + 1),
- ub = Math.min(k, n);
- for (var i = lb; i <= ub; i++) {
- var j = k - i;
- w[k].y += cd[j][i] * zCubic[j][i];
- }
- }
-
- return w;
- }
-
- function findRoots(w, depth) {
- switch (countCrossings(w)) {
- case 0:
- return [];
- case 1:
- if (depth >= maxDepth)
- return [0.5 * (w[0].x + w[5].x)];
- if (isFlatEnough(w)) {
- var line = new Line(w[0], w[5], true);
- return [ line.vector.getLength(true) <= Numerical.EPSILON
- ? line.point.x
- : xAxis.intersect(line).x ];
- }
- }
-
- var p = [[]],
- left = [],
- right = [];
- for (var j = 0; j <= 5; j++)
- p[0][j] = new Point(w[j]);
-
- for (var i = 1; i <= 5; i++) {
- p[i] = [];
- for (var j = 0 ; j <= 5 - i; j++)
- p[i][j] = p[i - 1][j].add(p[i - 1][j + 1]).multiply(0.5);
- }
- for (var j = 0; j <= 5; j++) {
- left[j] = p[j][0];
- right[j] = p[5 - j][j];
- }
-
- return findRoots(left, depth + 1).concat(findRoots(right, depth + 1));
- }
-
- function countCrossings(v) {
- var crossings = 0,
- prevSign = null;
- for (var i = 0, l = v.length; i < l; i++) {
- var sign = v[i].y < 0 ? -1 : 1;
- if (prevSign != null && sign != prevSign)
- crossings++;
- prevSign = sign;
- }
- return crossings;
- }
-
- function isFlatEnough(v) {
-
- var n = v.length - 1,
- a = v[0].y - v[n].y,
- b = v[n].x - v[0].x,
- c = v[0].x * v[n].y - v[n].x * v[0].y,
- maxAbove = 0,
- maxBelow = 0;
- for (var i = 1; i < n; i++) {
- var val = a * v[i].x + b * v[i].y + c,
- dist = val * val;
- if (val < 0 && dist > maxBelow) {
- maxBelow = dist;
- } else if (dist > maxAbove) {
- maxAbove = dist;
- }
- }
- return Math.abs((maxAbove + maxBelow) / (2 * a * (a * a + b * b)))
- < epsilon;
- }
-
- return {
- getNearestLocation: function(point, matrix) {
- var w = toBezierForm(this.getPoints(matrix), point);
- var roots = findRoots(w, 0).concat([0, 1]);
- var minDist = Infinity,
- minT,
- minPoint;
- for (var i = 0; i < roots.length; i++) {
- var pt = this.getPoint(roots[i]),
- dist = point.getDistance(pt, true);
- if (dist < minDist) {
- minDist = dist;
- minT = roots[i];
- minPoint = pt;
- }
- }
- return new CurveLocation(this, minT, minPoint, Math.sqrt(minDist));
- },
-
- getNearestPoint: function(point, matrix) {
- return this.getNearestLocation(point, matrix).getPoint();
- }
- };
-});
-
-CurveLocation = Base.extend({
- initialize: function(curve, parameter, point, distance) {
- this._curve = curve;
- this._parameter = parameter;
- this._point = point;
- this._distance = distance;
- },
-
- getSegment: function() {
- if (!this._segment) {
- var curve = this._curve,
- parameter = this.getParameter();
- if (parameter == 0) {
- this._segment = curve._segment1;
- } else if (parameter == 1) {
- this._segment = curve._segment2;
- } 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() {
- return this._curve;
- },
-
- getPath: function() {
- return this._curve && this._curve._path;
- },
-
- getIndex: function() {
- return this._curve && this._curve.getIndex();
- },
-
- getOffset: function() {
- var path = this._curve && this._curve._path;
- return path && path._getOffset(this);
- },
-
- getCurveOffset: function() {
- var parameter = this.getParameter();
- return parameter != null && this._curve
- && this._curve.getLength(0, parameter);
- },
-
- getParameter: function() {
- if (this._parameter == null && this._curve && this._point)
- this._parameter = this._curve.getParameterAt(this._point);
- return this._parameter;
- },
-
- getPoint: function() {
- if (!this._point && this._curve && this._parameter != null)
- this._point = this._curve.getPoint(this._parameter);
- return this._point;
- },
-
- getTangent: function() {
- var parameter = this.getParameter();
- return parameter != null && this._curve
- && this._curve.getTangent(parameter);
- },
-
- getNormal: function() {
- var parameter = this.getParameter();
- return parameter != null && this._curve
- && this._curve.getNormal(parameter);
- },
-
- getDistance: function() {
- return this._distance;
- },
-
- toString: function() {
- var parts = [],
- point = this.getPoint();
- 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: ' + Base.formatNumber(parameter));
- if (this._distance != null)
- parts.push('distance: ' + Base.formatNumber(this._distance));
- return '{ ' + parts.join(', ') + ' }';
- }
-});
-
-var PathItem = this.PathItem = Item.extend({
-
-});
-
-var Path = this.Path = PathItem.extend({
- initialize: function(segments) {
- this.base();
- this._closed = false;
- this._selectedSegmentState = 0;
- this.setSegments(!segments || !Array.isArray(segments)
- || typeof segments[0] !== 'object' ? arguments : segments);
- },
-
- clone: function() {
- var copy = this._clone(new Path(this._segments));
- copy._closed = this._closed;
- if (this._clockwise !== undefined)
- copy._clockwise = this._clockwise;
- return copy;
- },
-
- _changed: function(flags) {
- Item.prototype._changed.call(this, flags);
- if (flags & ChangeFlag.GEOMETRY) {
- delete this._strokeBounds;
- delete this._handleBounds;
- delete this._roughBounds;
- delete this._length;
- delete this._clockwise;
- } else if (flags & ChangeFlag.STROKE) {
- delete this._strokeBounds;
- }
- },
-
- getSegments: function() {
- return this._segments;
- },
-
- setSegments: function(segments) {
- if (!this._segments) {
- this._segments = [];
- } else {
- this._selectedSegmentState = 0;
- this._segments.length = 0;
- if (this._curves)
- delete this._curves;
- }
- this._add(Segment.readAll(segments));
- },
-
- getFirstSegment: function() {
- return this._segments[0];
- },
-
- getLastSegment: function() {
- return this._segments[this._segments.length - 1];
- },
-
- getCurves: function() {
- if (!this._curves) {
- var segments = this._segments,
- length = segments.length;
- if (!this._closed && length > 0)
- length--;
- this._curves = new Array(length);
- for (var i = 0; i < length; i++)
- this._curves[i] = Curve.create(this, segments[i],
- segments[i + 1] || segments[0]);
- }
- return this._curves;
- },
-
- getFirstCurve: function() {
- return this.getCurves()[0];
- },
-
- getLastCurve: function() {
- var curves = this.getCurves();
- return curves[curves.length - 1];
- },
-
- getClosed: function() {
- return this._closed;
- },
-
- setClosed: function(closed) {
- if (this._closed != (closed = !!closed)) {
- this._closed = closed;
- if (this._curves) {
- var length = this._segments.length,
- i;
- if (!closed && length > 0)
- length--;
- this._curves.length = length;
- if (closed)
- this._curves[i = length - 1] = Curve.create(this,
- this._segments[i], this._segments[0]);
- }
- this._changed(Change.GEOMETRY);
- }
- },
-
- _transform: function(matrix, flags) {
- if (!matrix.isIdentity()) {
- var coords = new Array(6);
- for (var i = 0, l = this._segments.length; i < l; i++) {
- this._segments[i]._transformCoordinates(matrix, coords, true);
- }
- var fillColor = this.getFillColor(),
- strokeColor = this.getStrokeColor();
- if (fillColor && fillColor.transform)
- fillColor.transform(matrix);
- if (strokeColor && strokeColor.transform)
- strokeColor.transform(matrix);
- }
- },
-
- _add: function(segs, index) {
- var segments = this._segments,
- curves = this._curves,
- amount = segs.length,
- append = index == null,
- index = append ? segments.length : index,
- fullySelected = this.isFullySelected();
- for (var i = 0; i < amount; i++) {
- var segment = segs[i];
- if (segment._path) {
- segment = segs[i] = new Segment(segment);
- }
- segment._path = this;
- segment._index = index + i;
- if (fullySelected)
- segment._selectionState = SelectionState.POINT;
- 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 && --index >= 0) {
- curves.splice(index, 0, Curve.create(this, segments[index],
- segments[index + 1]));
- var curve = curves[index + amount];
- if (curve) {
- curve._segment1 = segments[index + amount];
- }
- }
- this._changed(Change.GEOMETRY);
- return segs;
- },
-
- 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(segment) {
- return this._add([ Segment.read(arguments) ])[0];
- },
-
- insertSegment: function(index, segment) {
- 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) {
- var segments = this.removeSegments(index, index + 1);
- return segments[0] || null;
- },
-
- removeSegments: function(from, to) {
- from = from || 0;
- to = Base.pick(to, this._segments.length);
- var segments = this._segments,
- curves = this._curves,
- last = to >= 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);
- removed._index = removed._path = undefined;
- }
- for (var i = from, l = segments.length; i < l; i++)
- segments[i]._index = i;
- if (curves) {
- curves.splice(from, amount);
- var curve;
- if (curve = curves[from - 1])
- curve._segment2 = segments[from];
- if (curve = curves[from])
- curve._segment1 = segments[from];
- if (last && this._closed && (curve = curves[curves.length - 1]))
- curve._segment2 = segments[0];
- }
- this._changed(Change.GEOMETRY);
- return removed;
- },
-
- isFullySelected: function() {
- return this._selected && this._selectedSegmentState
- == this._segments.length * SelectionState.POINT;
- },
-
- setFullySelected: function(selected) {
- var length = this._segments.length;
- this._selectedSegmentState = selected
- ? length * SelectionState.POINT : 0;
- for (var i = 0; i < length; i++)
- this._segments[i]._selectionState = selected
- ? SelectionState.POINT : 0;
- this.setSelected(selected);
- },
-
- _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());
- }
- },
-
- isClockwise: function() {
- if (this._clockwise !== undefined)
- return this._clockwise;
- var sum = 0,
- xPre, yPre;
- function edge(x, y) {
- if (xPre !== undefined)
- sum += (xPre - x) * (y + yPre);
- xPre = x;
- yPre = y;
- }
- for (var i = 0, l = this._segments.length; i < l; i++) {
- var seg1 = this._segments[i],
- seg2 = this._segments[i + 1 < l ? i + 1 : 0],
- point1 = seg1._point,
- handle1 = seg1._handleOut,
- handle2 = seg2._handleIn,
- point2 = seg2._point;
- edge(point1._x, point1._y);
- edge(point1._x + handle1._x, point1._y + handle1._y);
- edge(point2._x + handle2._x, point2._y + handle2._y);
- edge(point2._x, point2._y);
- }
- return sum > 0;
- },
-
- 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;
- }
- 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 first2 = path.getFirstSegment();
- if (last1._point.equals(first2._point)) {
- last1.setHandleOut(first2._handleOut);
- this._add(segments.slice(1));
- } else {
- var 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(0));
- }
- }
- path.remove();
- var first1 = this.getFirstSegment();
- last1 = this.getLastSegment();
- if (last1._point.equals(first1._point)) {
- first1.setHandleIn(last1._handleIn);
- last1.remove();
- this.setClosed(true);
- }
- this._changed(Change.GEOMETRY);
- 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;
- },
-
- _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;
- },
-
- getLocation: function(point) {
- var curves = this.getCurves();
- for (var i = 0, l = curves.length; i < l; i++) {
- var curve = curves[i];
- var t = curve.getParameter(point);
- if (t != null)
- return new CurveLocation(curve, t);
- }
- return null;
- },
-
- getLocationAt: function(offset, isParameter) {
- var curves = this.getCurves(),
- length = 0;
- if (isParameter) {
- var index = ~~offset;
- return new CurveLocation(curves[index], offset - index);
- }
- for (var i = 0, l = curves.length; i < l; i++) {
- var start = length,
- curve = curves[i];
- length += curve.getLength();
- if (length >= offset) {
- return new CurveLocation(curve,
- curve.getParameterAt(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, matrix) {
- var curves = this.getCurves(),
- minDist = Infinity,
- minLoc = null;
- for (var i = 0, l = curves.length; i < l; i++) {
- var loc = curves[i].getNearestLocation(point, matrix);
- if (loc._distance < minDist) {
- minDist = loc._distance;
- minLoc = loc;
- }
- }
- return minLoc;
- },
-
- getNearestPoint: function(point, matrix) {
- return this.getNearestLocation(point, matrix).getPoint();
- },
-
- contains: function(point, matrix) {
- point = Point.read(arguments);
- if (!this._closed || !this.getRoughBounds(matrix)._containsPoint(point))
- return false;
- var curves = this.getCurves(),
- crossings = 0,
- roots = [];
- for (var i = 0, l = curves.length; i < l; i++)
- crossings += curves[i].getCrossings(point, matrix, roots);
- return (crossings & 1) == 1;
- },
-
- _hitTest: function(point, options, matrix) {
- var tolerance = options.tolerance || 0,
- radius = (options.stroke ? this.getStrokeWidth() / 2 : 0) + tolerance,
- loc,
- res;
- var coords = [],
- that = this;
- function checkSegment(segment, ends) {
- segment._transformCoordinates(matrix, coords);
- for (var j = ends || options.segments ? 0 : 2,
- m = !ends && options.handles ? 6 : 2; j < m; j += 2) {
- if (point.getDistance(coords[j], coords[j + 1]) < tolerance)
- return new HitResult(j == 0 ? 'segment'
- : 'handle-' + (j == 2 ? 'in' : 'out'),
- that, { segment: segment });
- }
- }
- if (options.ends && !options.segments && !this._closed) {
- if (res = checkSegment(this.getFirstSegment(), true)
- || checkSegment(this.getLastSegment(), true))
- return res;
- } else if (options.segments || options.handles) {
- for (var i = 0, l = this._segments.length; i < l; i++) {
- if (res = checkSegment(this._segments[i]))
- return res;
- }
- }
- if (options.stroke && radius > 0)
- loc = this.getNearestLocation(point, matrix);
- if (!(loc && loc._distance <= radius) && options.fill
- && this.getFillColor() && this.contains(point, matrix))
- return new HitResult('fill', this);
- if (!loc && options.stroke && radius > 0)
- loc = this.getNearestLocation(point, matrix);
- if (loc && loc._distance <= radius)
- return options.stroke
- ? new HitResult('stroke', this, { location: loc })
- : new HitResult('fill', this);
- }
-
-}, new function() {
-
- function drawHandles(ctx, segments) {
- for (var i = 0, l = segments.length; i < l; i++) {
- var segment = segments[i],
- point = segment._point,
- state = segment._selectionState,
- selected = state & SelectionState.POINT;
- if (selected || (state & SelectionState.HANDLE_IN))
- drawHandle(ctx, point, segment._handleIn);
- if (selected || (state & SelectionState.HANDLE_OUT))
- drawHandle(ctx, point, segment._handleOut);
- ctx.save();
- ctx.beginPath();
- ctx.rect(point._x - 2, point._y - 2, 4, 4);
- ctx.fill();
- if (!selected) {
- ctx.beginPath();
- ctx.rect(point._x - 1, point._y - 1, 2, 2);
- ctx.fillStyle = '#ffffff';
- ctx.fill();
- }
- ctx.restore();
- }
- }
-
- function drawHandle(ctx, point, handle) {
- if (!handle.isZero()) {
- var handleX = point._x + handle._x,
- handleY = point._y + handle._y;
- ctx.beginPath();
- ctx.moveTo(point._x, point._y);
- ctx.lineTo(handleX, handleY);
- ctx.stroke();
- ctx.beginPath();
- ctx.arc(handleX, handleY, 1.75, 0, Math.PI * 2, true);
- ctx.fill();
- }
- }
-
- function drawSegments(ctx, path) {
- var segments = path._segments,
- length = segments.length,
- handleOut, outX, outY;
-
- function drawSegment(i) {
- var segment = segments[i],
- point = segment._point,
- x = point._x,
- y = point._y,
- handleIn = segment._handleIn;
- if (!handleOut) {
- ctx.moveTo(x, y);
- } else {
- if (handleIn.isZero() && handleOut.isZero()) {
- ctx.lineTo(x, y);
- } else {
- ctx.bezierCurveTo(outX, outY,
- handleIn._x + x, handleIn._y + y, x, y);
- }
- }
- handleOut = segment._handleOut;
- outX = handleOut._x + x;
- outY = handleOut._y + y;
- }
-
- for (var i = 0; i < length; i++)
- drawSegment(i);
- if (path._closed && length > 1)
- drawSegment(0);
- }
-
- function drawDashes(ctx, path, dashArray, dashOffset) {
- var flattener = new PathFlattener(path),
- from = dashOffset, to,
- i = 0;
- while (from < flattener.length) {
- to = from + dashArray[(i++) % dashArray.length];
- flattener.drawPart(ctx, from, to);
- from = to + dashArray[(i++) % dashArray.length];
- }
- }
-
- return {
- draw: function(ctx, param) {
- if (!param.compound)
- ctx.beginPath();
-
- var fillColor = this.getFillColor(),
- strokeColor = this.getStrokeColor(),
- dashArray = this.getDashArray() || [],
- hasDash = !!dashArray.length;
-
- if (param.compound || param.selection || this._clipMask || fillColor
- || strokeColor && !hasDash) {
- drawSegments(ctx, this);
- }
-
- if (param.selection) {
- ctx.stroke();
- drawHandles(ctx, this._segments);
- } else if (this._clipMask) {
- ctx.clip();
- } else if (!param.compound && (fillColor || strokeColor)) {
- ctx.save();
- this._setStyles(ctx);
- if (!fillColor || !strokeColor)
- ctx.globalAlpha = this._opacity;
- if (fillColor) {
- ctx.fillStyle = fillColor.getCanvasStyle(ctx);
- ctx.fill();
- }
- if (strokeColor) {
- ctx.strokeStyle = strokeColor.getCanvasStyle(ctx);
- if (hasDash) {
- ctx.beginPath();
- drawDashes(ctx, this, dashArray, this.getDashOffset());
- }
- ctx.stroke();
- }
- ctx.restore();
- }
- }
- };
-}, 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;
- };
-
- var styles = {
- getStrokeWidth: 'lineWidth',
- getStrokeJoin: 'lineJoin',
- getStrokeCap: 'lineCap',
- getMiterLimit: 'miterLimit'
- };
-
- return {
- _setStyles: function(ctx) {
- for (var i in styles) {
- var style = this._style[i]();
- if (style)
- ctx[styles[i]] = style;
- }
- },
-
- smooth: function() {
- var segments = this._segments,
- size = segments.length,
- n = size,
- overlap;
-
- if (size <= 2)
- return;
-
- if (this._closed) {
- overlap = Math.min(size, 4);
- n += Math.min(size, overlap) * 2;
- } else {
- overlap = 0;
- }
- var knots = [];
- for (var i = 0; i < size; i++)
- knots[i + overlap] = segments[i]._point;
- if (this._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 (this._closed) {
- for (var i = 0, j = size; i < overlap; i++, j++) {
- var f1 = (i / overlap);
- var f2 = 1 - f1;
- x[j] = x[i] * f1 + x[j] * f2;
- y[j] = y[i] * f1 + y[j] * f2;
- var ie = i + overlap, je = j + overlap;
- 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));
- if (i < n - 1)
- handleIn = new Point(
- 2 * knots[i + 1]._x - x[i + 1],
- 2 * knots[i + 1]._y - y[i + 1]);
- else
- handleIn = new Point(
- (knots[n]._x + x[n - 1]) / 2,
- (knots[n]._y + y[n - 1]) / 2);
- }
- }
- if (this._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(point) {
- if (!this._segments.length)
- this._add([ new Segment(Point.read(arguments)) ]);
- },
-
- moveBy: function(point) {
- throw new Error('moveBy() is unsupported on Path items.');
- },
-
- lineTo: function(point) {
- this._add([ new Segment(Point.read(arguments)) ]);
- },
-
- cubicCurveTo: function(handle1, handle2, to) {
- handle1 = Point.read(arguments, 0, 1);
- handle2 = Point.read(arguments, 1, 1);
- to = Point.read(arguments, 2, 1);
- var current = getCurrentSegment(this);
- current.setHandleOut(handle1.subtract(current._point));
- this._add([ new Segment(to, handle2.subtract(to)) ]);
- },
-
- quadraticCurveTo: function(handle, to) {
- handle = Point.read(arguments, 0, 1);
- to = Point.read(arguments, 1, 1);
- var 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(through, to, parameter) {
- through = Point.read(arguments, 0, 1);
- to = Point.read(arguments, 1, 1);
- var t = Base.pick(parameter, 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(to, clockwise ) {
- var current = getCurrentSegment(this),
- from = current._point,
- through;
- if (clockwise === undefined)
- clockwise = true;
- if (typeof clockwise === 'boolean') {
- to = Point.read(arguments, 0, 1);
- var middle = from.add(to).divide(2),
- through = middle.add(middle.subtract(from).rotate(
- clockwise ? -90 : 90));
- } else {
- through = Point.read(arguments, 0, 1);
- to = Point.read(arguments, 1, 1);
- }
- var l1 = new Line(from.add(through).divide(2),
- through.subtract(from).rotate(90)),
- l2 = new Line(through.add(to).divide(2),
- to.subtract(through).rotate(90)),
- center = l1.intersect(l2),
- line = new Line(from, to, true),
- 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),
- radius = vector.getLength(),
- 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(vector) {
- vector = Point.read(arguments);
- var current = getCurrentSegment(this);
- this.lineTo(current._point.add(vector));
- },
-
- curveBy: function(throughVector, toVector, parameter) {
- throughVector = Point.read(throughVector);
- toVector = Point.read(toVector);
- var current = getCurrentSegment(this)._point;
- this.curveTo(current.add(throughVector), current.add(toVector),
- parameter);
- },
-
- arcBy: function(throughVector, toVector) {
- throughVector = Point.read(throughVector);
- toVector = Point.read(toVector);
- var current = getCurrentSegment(this)._point;
- this.arcBy(current.add(throughVector), current.add(toVector));
- },
-
- closePath: function() {
- this.setClosed(true);
- }
- };
-}, new function() {
-
- function getBounds(that, matrix, strokePadding) {
- var segments = that._segments,
- first = segments[0];
- if (!first)
- return null;
- var coords = new Array(6),
- prevCoords = new Array(6);
- if (matrix && matrix.isIdentity())
- matrix = null;
- first._transformCoordinates(matrix, prevCoords, false);
- var min = prevCoords.slice(0, 2),
- max = min.slice(0),
- tMin = Numerical.TOLERANCE,
- tMax = 1 - tMin;
- function processSegment(segment) {
- segment._transformCoordinates(matrix, coords, false);
-
- for (var i = 0; i < 2; i++) {
- var v0 = prevCoords[i],
- v1 = prevCoords[i + 4],
- v2 = coords[i + 2],
- v3 = coords[i];
-
- function add(value, t) {
- var padding = 0;
- if (value == null) {
- var u = 1 - t;
- value = u * u * u * v0
- + 3 * u * u * t * v1
- + 3 * u * t * t * v2
- + t * t * t * v3;
- padding = strokePadding ? strokePadding[i] : 0;
- }
- var left = value - padding,
- right = value + padding;
- if (left < min[i])
- min[i] = left;
- if (right > max[i])
- max[i] = right;
-
- }
- add(v3, null);
-
- var a = 3 * (v1 - v2) - v0 + v3,
- b = 2 * (v0 + v2) - 4 * v1,
- c = v1 - v0;
-
- if (a == 0) {
- if (b == 0)
- continue;
- var t = -c / b;
- if (tMin < t && t < tMax)
- add(null, t);
- continue;
- }
-
- var q = b * b - 4 * a * c;
- if (q < 0)
- continue;
- var sqrt = Math.sqrt(q),
- f = -0.5 / a,
- t1 = (b - sqrt) * f,
- t2 = (b + sqrt) * f;
- if (tMin < t1 && t1 < tMax)
- add(null, t1);
- if (tMin < t2 && t2 < tMax)
- add(null, t2);
- }
- var tmp = prevCoords;
- prevCoords = coords;
- coords = tmp;
- }
- for (var i = 1, l = segments.length; i < l; i++)
- processSegment(segments[i]);
- if (that._closed)
- processSegment(first);
- return Rectangle.create(min[0], min[1],
- max[0] - min[0], max[1] - min[1]);
- }
-
- function getPenPadding(radius, matrix) {
- if (!matrix)
- return [radius, radius];
- var mx = matrix.createShiftless(),
- hor = mx.transform(new Point(radius, 0)),
- ver = mx.transform(new Point(0, radius)),
- phi = hor.getAngleInRadians(),
- a = hor.getLength(),
- b = ver.getLength();
- var tx = - Math.atan(b * Math.tan(phi)),
- ty = + Math.atan(b / Math.tan(phi)),
- x = a * Math.cos(tx) * Math.cos(phi)
- - b * Math.sin(tx) * Math.sin(phi),
- y = b * Math.sin(ty) * Math.cos(phi)
- + a * Math.cos(ty) * Math.sin(phi);
- return [Math.abs(x), Math.abs(y)];
- }
-
- return {
- getBounds: function() {
- var useCache = arguments[0] === undefined;
- if (useCache && this._bounds)
- return this._bounds;
- var bounds = this._createBounds(getBounds(this, arguments[0]));
- if (useCache)
- this._bounds = bounds;
- return bounds;
- },
-
- getStrokeBounds: function() {
- if (!this._style._strokeColor || !this._style._strokeWidth)
- return this.getBounds.apply(this, arguments);
- var useCache = arguments[0] === undefined;
- if (useCache && this._strokeBounds)
- return this._strokeBounds;
- var matrix = arguments[0],
- width = this.getStrokeWidth(),
- radius = width / 2,
- padding = getPenPadding(radius, matrix),
- join = this.getStrokeJoin(),
- cap = this.getStrokeCap(),
- miter = this.getMiterLimit() * width / 2,
- segments = this._segments,
- length = segments.length,
- bounds = getBounds(this, matrix, getPenPadding(radius));
- var joinBounds = new Rectangle(new Size(padding).multiply(2));
-
- function add(point) {
- bounds = bounds.include(matrix
- ? matrix.transform(point) : point);
- }
-
- function addBevelJoin(curve, t) {
- var point = curve.getPoint(t),
- normal = curve.getNormal(t).normalize(radius);
- add(point.add(normal));
- add(point.subtract(normal));
- }
-
- function addJoin(segment, join) {
- if (join === 'round' || !segment._handleIn.isZero()
- && !segment._handleOut.isZero()) {
- bounds = bounds.unite(joinBounds.setCenter(matrix
- ? matrix.transform(segment._point) : segment._point));
- } else if (join == 'bevel') {
- var curve = segment.getCurve();
- addBevelJoin(curve, 0);
- addBevelJoin(curve.getPrevious(), 1);
- } else if (join == 'miter') {
- var curve2 = segment.getCurve(),
- curve1 = curve2.getPrevious(),
- point = curve2.getPoint(0),
- normal1 = curve1.getNormal(1).normalize(radius),
- normal2 = curve2.getNormal(0).normalize(radius),
- line1 = new Line(point.subtract(normal1),
- new Point(-normal1.y, normal1.x)),
- line2 = new Line(point.subtract(normal2),
- new Point(-normal2.y, normal2.x)),
- corner = line1.intersect(line2);
- if (!corner || point.getDistance(corner) > miter) {
- addJoin(segment, 'bevel');
- } else {
- add(corner);
- }
- }
- }
-
- function addCap(segment, cap, t) {
- switch (cap) {
- case 'round':
- return addJoin(segment, cap);
- case 'butt':
- case 'square':
- var curve = segment.getCurve(),
- point = curve.getPoint(t),
- normal = curve.getNormal(t).normalize(radius);
- if (cap === 'square')
- point = point.add(normal.y, -normal.x);
- add(point.add(normal));
- add(point.subtract(normal));
- break;
- }
- }
-
- for (var i = 1, l = length - (this._closed ? 0 : 1); i < l; i++) {
- addJoin(segments[i], join);
- }
- if (this._closed) {
- addJoin(segments[0], join);
- } else {
- addCap(segments[0], cap, 0);
- addCap(segments[length - 1], cap, 1);
- }
- if (useCache)
- this._strokeBounds = bounds;
- return bounds;
- },
-
- getHandleBounds: function() {
- var matrix = arguments[0],
- useCache = matrix === undefined;
- if (useCache && this._handleBounds)
- return this._handleBounds;
- var coords = new Array(6),
- stroke = arguments[1] / 2 || 0,
- join = arguments[2] / 2 || 0,
- open = !this._closed,
- x1 = Infinity,
- x2 = -x1,
- y1 = x1,
- y2 = x2;
- for (var i = 0, l = this._segments.length; i < l; i++) {
- var segment = this._segments[i];
- segment._transformCoordinates(matrix, coords, false);
- for (var j = 0; j < 6; j += 2) {
- var padding = j == 0 ? join : stroke,
- 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;
- }
- }
- var bounds = Rectangle.create(x1, y1, x2 - x1, y2 - y1);
- if (useCache)
- this._handleBounds = bounds;
- return bounds;
- },
-
- getRoughBounds: function() {
- var useCache = arguments[0] === undefined;
- if (useCache && this._roughBounds)
- return this._roughBounds;
- var bounds = this.getHandleBounds(arguments[0], this.strokeWidth,
- this.getStrokeJoin() == 'miter'
- ? this.strokeWidth * this.getMiterLimit()
- : this.strokeWidth);
- if (useCache)
- this._roughBounds = bounds;
- return bounds;
- }
- };
-});
-
-Path.inject({ statics: new function() {
- var kappa = 2 / 3 * (Math.sqrt(2) - 1);
-
- var ovalSegments = [
- new Segment([0, 0.5], [0, kappa ], [0, -kappa]),
- new Segment([0.5, 0], [-kappa, 0], [kappa, 0 ]),
- new Segment([1, 0.5], [0, -kappa], [0, kappa ]),
- new Segment([0.5, 1], [kappa, 0 ], [-kappa, 0])
- ];
-
- return {
- Line: function() {
- var step = Math.floor(arguments.length / 2);
- return new Path(
- Segment.read(arguments, 0, step),
- Segment.read(arguments, step, step)
- );
- },
-
- Rectangle: function(rect) {
- rect = Rectangle.read(arguments);
- var left = rect.x,
- top = rect.y
- right = left + rect.width,
- bottom = top + rect.height,
- path = new Path();
- path._add([
- new Segment(Point.create(left, bottom)),
- new Segment(Point.create(left, top)),
- new Segment(Point.create(right, top)),
- new Segment(Point.create(right, bottom))
- ]);
- path._closed = true;
- return path;
- },
-
- RoundRectangle: function(rect, size) {
- if (arguments.length == 2) {
- rect = Rectangle.read(arguments, 0, 1);
- size = Size.read(arguments, 1, 1);
- } else if (arguments.length == 6) {
- rect = Rectangle.read(arguments, 0, 4);
- size = Size.read(arguments, 4, 2);
- }
- size = Size.min(size, rect.getSize(true).divide(2));
- var path = new Path(),
- uSize = size.multiply(kappa * 2),
- bl = rect.getBottomLeft(true),
- tl = rect.getTopLeft(true),
- tr = rect.getTopRight(true),
- br = rect.getBottomRight(true);
- path._add([
- new Segment(bl.add(size.width, 0), null, [-uSize.width, 0]),
- new Segment(bl.subtract(0, size.height), [0, uSize.height], null),
-
- new Segment(tl.add(0, size.height), null, [0, -uSize.height]),
- new Segment(tl.add(size.width, 0), [-uSize.width, 0], null),
-
- new Segment(tr.subtract(size.width, 0), null, [uSize.width, 0]),
- new Segment(tr.add(0, size.height), [0, -uSize.height], null),
-
- new Segment(br.subtract(0, size.height), null, [0, uSize.height]),
- new Segment(br.subtract(size.width, 0), [uSize.width, 0], null)
- ]);
- path._closed = true;
- return path;
- },
-
- Oval: function(rect) {
- rect = Rectangle.read(arguments);
- var path = new Path(),
- point = rect.getPoint(true),
- size = rect.getSize(true),
- segments = new Array(4);
- for (var i = 0; i < 4; i++) {
- var segment = ovalSegments[i];
- segments[i] = new Segment(
- segment._point.multiply(size).add(point),
- segment._handleIn.multiply(size),
- segment._handleOut.multiply(size)
- );
- }
- path._add(segments);
- path._closed = true;
- return path;
- },
-
- Circle: function(center, radius) {
- if (arguments.length == 3) {
- center = Point.read(arguments, 0, 2);
- radius = arguments[2];
- } else {
- center = Point.read(arguments, 0, 1);
- }
- return Path.Oval(new Rectangle(center.subtract(radius),
- Size.create(radius * 2, radius * 2)));
- },
-
- Arc: function(from, through, to) {
- var path = new Path();
- path.moveTo(from);
- path.arcTo(through, to);
- return path;
- },
-
- RegularPolygon: function(center, numSides, radius) {
- center = Point.read(arguments, 0, 1);
- var path = new Path(),
- step = 360 / numSides,
- three = !(numSides % 3),
- vector = new Point(0, three ? -radius : radius),
- offset = three ? -1 : 0.5,
- segments = new Array(numSides);
- for (var i = 0; i < numSides; i++) {
- segments[i] = new Segment(center.add(
- vector.rotate((i + offset) * step)));
- }
- path._add(segments);
- path._closed = true;
- return path;
- },
-
- Star: function(center, numPoints, radius1, radius2) {
- center = Point.read(arguments, 0, 1);
- numPoints *= 2;
- var path = new Path(),
- step = 360 / numPoints,
- vector = new Point(0, -1),
- segments = new Array(numPoints);
- for (var i = 0; i < numPoints; i++) {
- segments[i] = new Segment(center.add(
- vector.rotate(step * i).multiply(i % 2 ? radius2 : radius1)));
- }
- path._add(segments);
- path._closed = true;
- return path;
- }
- };
-}});
-
-var CompoundPath = this.CompoundPath = PathItem.extend({
- initialize: function(paths) {
- this.base();
- this._children = [];
- this._namedChildren = {};
- var items = !paths || !Array.isArray(paths)
- || typeof paths[0] !== 'object' ? arguments : paths;
- this.addChildren(items);
- },
-
- insertChild: function(index, item) {
- this.base(index, item);
- if (item._clockwise === undefined)
- item.setClockwise(item._index == 0);
- },
-
- simplify: function() {
- if (this._children.length == 1) {
- var child = this._children[0];
- child.insertAbove(this);
- this.remove();
- return child;
- }
- return this;
- },
-
- smooth: function() {
- for (var i = 0, l = this._children.length; i < l; i++)
- this._children[i].smooth();
- },
-
- draw: function(ctx, param) {
- var l = this._children.length;
- if (l == 0) {
- return;
- }
- var firstChild = this._children[0];
- ctx.beginPath();
- param.compound = true;
- for (var i = 0; i < l; i++)
- Item.draw(this._children[i], ctx, param);
- firstChild._setStyles(ctx);
- var fillColor = firstChild.getFillColor(),
- strokeColor = firstChild.getStrokeColor();
- if (fillColor) {
- ctx.fillStyle = fillColor.getCanvasStyle(ctx);
- ctx.fill();
- }
- if (strokeColor) {
- ctx.strokeStyle = strokeColor.getCanvasStyle(ctx);
- ctx.stroke();
- }
- param.compound = false;
- }
-}, 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(point) {
- var path = new Path();
- this.addChild(path);
- path.moveTo.apply(path, arguments);
- },
-
- moveBy: function(point) {
- this.moveTo(getCurrentPath(this).getLastSegment()._point.add(
- Point.read(arguments)));
- },
-
- closePath: function() {
- getCurrentPath(this).setClosed(true);
- }
- };
-
- Base.each(['lineTo', 'cubicCurveTo', 'quadraticCurveTo', 'curveTo',
- 'arcTo', 'lineBy', '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)) {
- 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 > Numerical.TOLERANCE) {
- 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() {
- this.segments = [new Segment(this.points[0])];
- this.fitCubic(0, this.points.length - 1,
- this.points[1].subtract(this.points[0]).normalize(),
- this.points[this.points.length - 2].subtract(
- this.points[this.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),
- 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 = Numerical.EPSILON,
- 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(c0) > 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) < Numerical.TOLERANCE)
- 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
- };
- }
-});
-
-var TextItem = this.TextItem = Item.extend({
- initialize: function() {
- this.base();
- this._content = '';
- this._characterStyle = CharacterStyle.create(this);
- this.setCharacterStyle(this._project.getCurrentStyle());
- this._paragraphStyle = ParagraphStyle.create(this);
- this.setParagraphStyle();
- },
-
- _clone: function(copy) {
- copy._content = this._content;
- copy.setCharacterStyle(this._characterStyle);
- copy.setParagraphStyle(this._paragraphStyle);
- return this.base(copy);
- },
-
- getContent: function() {
- return this._content;
- },
-
- setContent: function(content) {
- this._changed(Change.CONTENT);
- this._content = '' + content;
- },
-
- getCharacterStyle: function() {
- return this._characterStyle;
- },
-
- setCharacterStyle: function(style) {
- this._characterStyle.initialize(style);
- },
-
- getParagraphStyle: function() {
- return this._paragraphStyle;
- },
-
- setParagraphStyle: function(style) {
- this._paragraphStyle.initialize(style);
- }
-});
-
-var PointText = this.PointText = TextItem.extend({
- initialize: function(point) {
- this.base();
- this._point = Point.read(arguments).clone();
- this._matrix = new Matrix().translate(this._point);
- },
-
- clone: function() {
- var copy = this._clone(new PointText(this._point));
- copy._matrix.initialize(this._matrix);
- return copy;
- },
-
- getPoint: function() {
- return LinkedPoint.create(this, 'setPoint',
- this._point.x, this._point.y);
- },
-
- setPoint: function(point) {
- this.translate(Point.read(arguments).subtract(this._point));
- },
-
- getPosition: function() {
- return this.getPoint();
- },
-
- setPosition: function(point) {
- this.setPoint.apply(this, arguments);
- },
-
- _transform: function(matrix, flags) {
- this._matrix.preConcatenate(matrix);
- matrix._transformPoint(this._point, this._point);
- },
-
- draw: function(ctx) {
- if (!this._content)
- return;
- ctx.save();
- ctx.font = this.getFontSize() + 'pt ' + this.getFont();
- ctx.textAlign = this.getJustification();
- this._matrix.applyToContext(ctx);
-
- var fillColor = this.getFillColor();
- var strokeColor = this.getStrokeColor();
- if (!fillColor || !strokeColor)
- ctx.globalAlpha = this._opacity;
- if (fillColor) {
- ctx.fillStyle = fillColor.getCanvasStyle(ctx);
- ctx.fillText(this._content, 0, 0);
- }
- if (strokeColor) {
- ctx.strokeStyle = strokeColor.getCanvasStyle(ctx);
- ctx.strokeText(this._content, 0, 0);
- }
- ctx.restore();
- }
-});
-
-var Style = Item.extend({
- initialize: function(style) {
- var clone = style instanceof Style;
- return Base.each(this._defaults, function(value, key) {
- value = style && style[key] || value;
- this[key] = value && clone && value.clone
- ? value.clone() : value;
- }, this);
- },
-
- statics: {
- create: function(item) {
- var style = new this(this.dont);
- style._item = item;
- return style;
- },
-
- extend: function(src) {
- var styleKey = src._style,
- flags = src._flags || {};
- src._owner.inject(Base.each(src._defaults, function(value, key) {
- var isColor = !!key.match(/Color$/),
- part = Base.capitalize(key),
- set = 'set' + part,
- get = 'get' + part;
- src[set] = function(value) {
- var children = this._item && this._item._children;
- value = isColor ? Color.read(arguments) : value;
- if (children) {
- for (var i = 0, l = children.length; i < l; i++)
- children[i][styleKey][set](value);
- } else {
- var old = this['_' + key];
- if (old != value && !(old && old.equals
- && old.equals(value))) {
- this['_' + key] = value;
- if (isColor) {
- if (old)
- old._removeOwner(this._item);
- if (value)
- value._addOwner(this._item);
- }
- if (this._item)
- this._item._changed(flags[key] || Change.STYLE);
- }
- }
- return this;
- };
- src[get] = function() {
- var children = this._item && this._item._children,
- style;
- if (!children)
- return this['_' + key];
- for (var i = 0, l = children.length; i < l; i++) {
- var childStyle = children[i][styleKey][get]();
- if (!style) {
- style = childStyle;
- } else if (style != childStyle && !(style
- && style.equals && style.equals(childStyle))) {
- return undefined;
- }
- }
- return style;
- };
- this[set] = function(value) {
- this[styleKey][set](value);
- return this;
- };
- this[get] = function() {
- return this[styleKey][get]();
- };
- }, {}));
- return this.base(src);
- }
- }
-});
-
-var PathStyle = this.PathStyle = Style.extend({
- _defaults: {
- fillColor: undefined,
- strokeColor: undefined,
- strokeWidth: 1,
- strokeCap: 'butt',
- strokeJoin: 'miter',
- miterLimit: 10,
- dashOffset: 0,
- dashArray: []
- },
- _flags: {
- strokeWidth: Change.STROKE,
- strokeCap: Change.STROKE,
- strokeJoin: Change.STROKE,
- miterLimit: Change.STROKE
- },
- _owner: Item,
- _style: '_style'
-
-});
-
-var ParagraphStyle = this.ParagraphStyle = Style.extend({
- _defaults: {
- justification: 'left'
- },
- _owner: TextItem,
- _style: '_paragraphStyle'
-
-});
-
-var CharacterStyle = this.CharacterStyle = PathStyle.extend({
- _defaults: Base.merge(PathStyle.prototype._defaults, {
- fillColor: 'black',
- fontSize: 10,
- font: 'sans-serif'
- }),
- _owner: TextItem,
- _style: '_characterStyle'
-
-});
-
-var Color = this.Color = Base.extend(new function() {
-
- var components = {
- gray: ['gray'],
- rgb: ['red', 'green', 'blue'],
- hsb: ['hue', 'saturation', 'brightness'],
- hsl: ['hue', 'saturation', 'lightness']
- };
-
- var colorCache = {},
- colorContext;
-
- function nameToRgbColor(name) {
- var color = colorCache[name];
- if (color)
- return color.clone();
- if (!colorContext) {
- var canvas = CanvasProvider.getCanvas(Size.create(1, 1));
- colorContext = canvas.getContext('2d');
- colorContext.globalCompositeOperation = 'copy';
- }
- colorContext.fillStyle = 'rgba(0,0,0,0)';
- colorContext.fillStyle = name;
- colorContext.fillRect(0, 0, 1, 1);
- var data = colorContext.getImageData(0, 0, 1, 1).data,
- rgb = [data[0] / 255, data[1] / 255, data[2] / 255];
- return (colorCache[name] = RgbColor.read(rgb)).clone();
- }
-
- function hexToRgbColor(string) {
- var hex = string.match(/^#?(\w{1,2})(\w{1,2})(\w{1,2})$/);
- if (hex.length >= 4) {
- var rgb = new Array(3);
- for (var i = 0; i < 3; i++) {
- var channel = hex[i + 1];
- rgb[i] = parseInt(channel.length == 1
- ? channel + channel : channel, 16) / 255;
- }
- return RgbColor.read(rgb);
- }
- }
-
- 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(color) {
- var r = color._red,
- g = color._green,
- b = color._blue,
- 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,
- s = max == 0 ? 0 : delta / max,
- v = max;
- return new HsbColor(h, s, v, color._alpha);
- },
-
- 'hsb-rgb': function(color) {
- var h = (color._hue / 60) % 6,
- s = color._saturation,
- b = color._brightness,
- 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 new RgbColor(v[i[0]], v[i[1]], v[i[2]], color._alpha);
- },
-
- 'rgb-hsl': function(color) {
- var r = color._red,
- g = color._green,
- b = color._blue,
- 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 new HslColor(h, s, l, color._alpha);
- },
-
- 'hsl-rgb': function(color) {
- var s = color._saturation,
- h = color._hue / 360,
- l = color._lightness,
- t1, t2, c;
- if (s == 0)
- return new RgbColor(l, l, l, color._alpha);
- 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 new RgbColor(c[0], c[1], c[2], color._alpha);
- },
-
- 'rgb-gray': function(color) {
- return new GrayColor(1 - (color._red * 0.2989 + color._green * 0.587
- + color._blue * 0.114), color._alpha);
- },
-
- 'gray-rgb': function(color) {
- var comp = 1 - color._gray;
- return new RgbColor(comp, comp, comp, color._alpha);
- },
-
- 'gray-hsb': function(color) {
- return new HsbColor(0, 0, 1 - color._gray, color._alpha);
- },
-
- 'gray-hsl': function(color) {
- return new HslColor(0, 0, 1 - color._gray, color._alpha);
- }
- };
-
- var fields = {
- _readNull: true,
-
- initialize: function(arg) {
- var isArray = Array.isArray(arg),
- type = this._colorType;
- if (typeof arg === 'object' && !isArray) {
- if (!type) {
- return arg.red !== undefined
- ? new RgbColor(arg.red, arg.green, arg.blue, arg.alpha)
- : arg.gray !== undefined
- ? new GrayColor(arg.gray, arg.alpha)
- : arg.lightness !== undefined
- ? new HslColor(arg.hue, arg.saturation, arg.lightness,
- arg.alpha)
- : arg.hue !== undefined
- ? new HsbColor(arg.hue, arg.saturation, arg.brightness,
- arg.alpha)
- : new RgbColor();
- } else {
- return Color.read(arguments).convert(type);
- }
- } else if (typeof arg === 'string') {
- var rgbColor = arg.match(/^#[0-9a-f]{3,6}$/i)
- ? hexToRgbColor(arg)
- : nameToRgbColor(arg);
- return type
- ? rgbColor.convert(type)
- : rgbColor;
- } else {
- var components = isArray ? arg
- : Array.prototype.slice.call(arguments);
- if (!type) {
- if (components.length >= 3)
- return new RgbColor(components);
- return new GrayColor(components);
- } else {
- Base.each(this._components,
- function(name, i) {
- var value = components[i];
- this['_' + name] = value !== undefined
- ? value : null;
- },
- this);
- }
- }
- },
-
- clone: function() {
- var ctor = this.constructor,
- copy = new ctor(ctor.dont),
- components = this._components;
- for (var i = 0, l = components.length; i < l; i++) {
- var key = '_' + components[i];
- copy[key] = this[key];
- }
- return copy;
- },
-
- convert: function(type) {
- var converter;
- return this._colorType == type
- ? this.clone()
- : (converter = converters[this._colorType + '-' + type])
- ? converter(this)
- : converters['rgb-' + type](
- converters[this._colorType + '-rgb'](this));
- },
-
- statics: {
- extend: function(src) {
- src.beans = true;
- if (src._colorType) {
- var comps = components[src._colorType];
- src._components = comps.concat(['alpha']);
- Base.each(comps, function(name) {
- var isHue = name === 'hue',
- part = Base.capitalize(name),
- name = '_' + name;
- this['get' + part] = function() {
- return this[name];
- };
- this['set' + part] = function(value) {
- this[name] = isHue
- ? ((value % 360) + 360) % 360
- : Math.min(Math.max(value, 0), 1);
- this._changed();
- return this;
- };
- }, src);
- }
- return this.base(src);
- }
- }
- };
-
- Base.each(components, function(comps, type) {
- Base.each(comps, function(component) {
- var part = Base.capitalize(component);
- fields['get' + part] = function() {
- return this.convert(type)[component];
- };
- fields['set' + part] = function(value) {
- var color = this.convert(type);
- color[component] = value;
- color = color.convert(this._colorType);
- for (var i = 0, l = this._components.length; i < l; i++) {
- var key = this._components[i];
- this[key] = color[key];
- }
- };
- });
- });
-
- return fields;
-}, {
-
- _changed: function() {
- this._cssString = null;
- for (var i = 0, l = this._owners && this._owners.length; i < l; i++)
- this._owners[i]._changed(Change.STYLE);
- },
-
- _addOwner: function(item) {
- if (!this._owners)
- this._owners = [];
- this._owners.push(item);
- },
-
- _removeOwner: function(item) {
- var index = this._owners ? this._owners.indexOf(item) : -1;
- if (index != -1) {
- this._owners.splice(index, 1);
- if (this._owners.length == 0)
- delete this._owners;
- }
- },
-
- getType: function() {
- return this._colorType;
- },
-
- getComponents: function() {
- var length = this._components.length;
- var comps = new Array(length);
- for (var i = 0; i < length; i++)
- comps[i] = this['_' + this._components[i]];
- return comps;
- },
-
- 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();
- return this;
- },
-
- hasAlpha: function() {
- return this._alpha != null;
- },
-
- equals: function(color) {
- if (color && color._colorType === this._colorType) {
- for (var i = 0, l = this._components.length; i < l; i++) {
- var component = '_' + this._components[i];
- if (this[component] !== color[component])
- return false;
- }
- return true;
- }
- return false;
- },
-
- toString: function() {
- var parts = [],
- format = Base.formatNumber;
- for (var i = 0, l = this._components.length; i < l; i++) {
- var component = this._components[i],
- value = this['_' + component];
- if (component === 'alpha' && value == null)
- value = 1;
- parts.push(component + ': ' + format(value));
- }
- return '{ ' + parts.join(', ') + ' }';
- },
-
- toCssString: function() {
- if (!this._cssString) {
- var color = this.convert('rgb'),
- alpha = color.getAlpha(),
- components = [
- Math.round(color._red * 255),
- Math.round(color._green * 255),
- Math.round(color._blue * 255),
- alpha != null ? alpha : 1
- ];
- this._cssString = 'rgba(' + components.join(', ') + ')';
- }
- return this._cssString;
- },
-
- getCanvasStyle: function() {
- return this.toCssString();
- }
-
-});
-
-var GrayColor = this.GrayColor = Color.extend({
-
- _colorType: 'gray'
-});
-
-var RgbColor = this.RgbColor = this.RGBColor = Color.extend({
-
- _colorType: 'rgb'
-});
-
-var HsbColor = this.HsbColor = this.HSBColor = Color.extend({
-
- _colorType: 'hsb'
-});
-
-var HslColor = this.HslColor = this.HSLColor = Color.extend({
-
- _colorType: 'hsl'
-});
-
-var GradientColor = this.GradientColor = Color.extend({
-
- initialize: function(gradient, origin, destination, hilite) {
- this.gradient = gradient || new Gradient();
- this.setOrigin(origin);
- this.setDestination(destination);
- if (hilite)
- this.setHilite(hilite);
- },
-
- clone: function() {
- return new GradientColor(this.gradient, this._origin, this._destination,
- this._hilite);
- },
-
- getOrigin: function() {
- return this._origin;
- },
-
- setOrigin: function(origin) {
- origin = Point.read(arguments).clone();
- this._origin = origin;
- if (this._destination)
- this._radius = this._destination.getDistance(this._origin);
- this._changed();
- return this;
- },
-
- getDestination: function() {
- return this._destination;
- },
-
- setDestination: function(destination) {
- destination = Point.read(arguments).clone();
- this._destination = destination;
- this._radius = this._destination.getDistance(this._origin);
- this._changed();
- return this;
- },
-
- getHilite: function() {
- return this._hilite;
- },
-
- setHilite: function(hilite) {
- hilite = Point.read(arguments).clone();
- var vector = hilite.subtract(this._origin);
- if (vector.getLength() > this._radius) {
- this._hilite = this._origin.add(
- vector.normalize(this._radius - 0.1));
- } else {
- this._hilite = hilite;
- }
- this._changed();
- return this;
- },
-
- getCanvasStyle: function(ctx) {
- var gradient;
- if (this.gradient.type === 'linear') {
- gradient = ctx.createLinearGradient(this._origin.x, this._origin.y,
- this._destination.x, this._destination.y);
- } else {
- var origin = this._hilite || this._origin;
- gradient = ctx.createRadialGradient(origin.x, origin.y,
- 0, this._origin.x, this._origin.y, this._radius);
- }
- for (var i = 0, l = this.gradient._stops.length; i < l; i++) {
- var stop = this.gradient._stops[i];
- gradient.addColorStop(stop._rampPoint, stop._color.toCssString());
- }
- return gradient;
- },
-
- equals: function(color) {
- return color == this || color && color._colorType === this._colorType
- && this.gradient.equals(color.gradient)
- && this._origin.equals(color._origin)
- && this._destination.equals(color._destination);
- },
-
- transform: function(matrix) {
- matrix._transformPoint(this._origin, this._origin, true);
- matrix._transformPoint(this._destination, this._destination, true);
- if (this._hilite)
- matrix._transformPoint(this._hilite, this._hilite, true);
- this._radius = this._destination.getDistance(this._origin);
- }
-});
-
-var Gradient = this.Gradient = Base.extend({
- initialize: function(stops, type) {
- this.setStops(stops || ['white', 'black']);
- this.type = type || 'linear';
- },
-
- 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, this.type);
- },
-
- getStops: function() {
- return this._stops;
- },
-
- setStops: function(stops) {
- if (stops.length < 2)
- throw new Error(
- 'Gradient stop list needs to contain at least two stops.');
- this._stops = GradientStop.readAll(stops);
- for (var i = 0, l = this._stops.length; i < l; i++) {
- var stop = this._stops[i];
- if (stop._defaultRamp)
- stop.setRampPoint(i / (l - 1));
- }
- },
-
- equals: function(gradient) {
- if (gradient.type != this.type)
- return false;
- if (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 = this.GradientStop = Base.extend({
- initialize: function(arg0, arg1) {
- if (arg1 === undefined && Array.isArray(arg0)) {
- this.setColor(arg0[0]);
- this.setRampPoint(arg0[1]);
- } else if (arg0.color) {
- this.setColor(arg0.color);
- this.setRampPoint(arg0.rampPoint);
- } else {
- this.setColor(arg0);
- this.setRampPoint(arg1);
- }
- },
-
- clone: function() {
- return new GradientStop(this._color.clone(), this._rampPoint);
- },
-
- getRampPoint: function() {
- return this._rampPoint;
- },
-
- setRampPoint: function(rampPoint) {
- this._defaultRamp = rampPoint == null;
- this._rampPoint = rampPoint || 0;
- },
-
- getColor: function() {
- return this._color;
- },
-
- setColor: function(color) {
- this._color = Color.read(arguments);
- },
-
- equals: function(stop) {
- return stop == this || stop instanceof GradientStop
- && this._color.equals(stop._color)
- && this._rampPoint == stop._rampPoint;
- }
-});
-
-var DomElement = {
- getBounds: function(el, viewport) {
- var rect = el.getBoundingClientRect(),
- doc = el.ownerDocument,
- body = doc.body,
- docEl = doc.documentElement,
- x = rect.left - (docEl.clientLeft || body.clientLeft || 0),
- y = rect.top - (docEl.clientTop || body.clientTop || 0);
- if (!viewport) {
- var win = DomElement.getViewport(doc);
- x += win.pageXOffset || docEl.scrollLeft || body.scrollLeft;
- y += win.pageYOffset || docEl.scrollTop || body.scrollTop;
- }
- return new Rectangle(x, y, rect.width, rect.height);
- },
-
- 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([0, 0]);
- },
-
- isVisible: function(el) {
- return !this.isInvisible(el) && this.getViewportBounds(el).intersects(
- this.getBounds(el, true));
- },
-
- getViewport: function(doc) {
- return doc.defaultView || doc.parentWindow;
- },
-
- getViewportBounds: function(el) {
- var doc = el.ownerDocument,
- view = this.getViewport(doc),
- body = doc.getElementsByTagName(
- doc.compatMode === 'CSS1Compat' ? 'html' : 'body')[0];
- return Rectangle.create(0, 0,
- view.innerWidth || body.clientWidth,
- view.innerHeight || body.clientHeight
- );
- },
-
- getComputedStyle: function(el, name) {
- if (el.currentStyle)
- return el.currentStyle[Base.camelize(name)];
- var style = this.getViewport(el.ownerDocument)
- .getComputedStyle(el, null);
- return style ? style.getPropertyValue(Base.hyphenate(name)) : null;
- }
-};
-
-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 Point.create(
- 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 part = 'equestAnimationFrame',
- request = window['r' + part] || window['webkitR' + part]
- || window['mozR' + part] || window['oR' + part]
- || window['msR' + part];
- if (request) {
- request(function(time) {
- if (time == undefined)
- request = null;
- });
- }
-
- var callbacks = [],
- focused = true,
- timer;
-
- DomEvent.add(window, {
- focus: function() {
- focused = true;
- },
- blur: function() {
- focused = false;
- }
- });
-
- return function(callback, element) {
- if (request)
- return request(callback, element);
- callbacks.push([callback, element]);
- if (timer)
- return;
- timer = window.setInterval(function() {
- for (var i = callbacks.length - 1; i >= 0; i--) {
- var entry = callbacks[i],
- func = entry[0],
- el = entry[1];
- if (!el || (PaperScript.getAttribute(el, 'keepalive') == 'true'
- || focused) && DomElement.isVisible(el)) {
- callbacks.splice(i, 1);
- func(Date.now());
- }
- }
- }, 1000 / 60);
- };
-};
-
-var View = this.View = PaperScopeItem.extend({
- _list: 'views',
- _reference: 'view',
-
- initialize: function(canvas) {
- this.base();
- var size;
-
- if (typeof canvas === 'string')
- canvas = document.getElementById(canvas);
- if (canvas instanceof HTMLCanvasElement) {
- this._canvas = canvas;
- if (PaperScript.hasAttribute(canvas, 'resize')) {
- var offset = DomElement.getOffset(canvas, true),
- that = this;
- size = DomElement.getViewportBounds(canvas)
- .getSize().subtract(offset);
- canvas.width = size.width;
- canvas.height = size.height;
- DomEvent.add(window, {
- resize: function(event) {
- if (!DomElement.isInvisible(canvas))
- offset = DomElement.getOffset(canvas, true);
- that.setViewSize(DomElement.getViewportBounds(canvas)
- .getSize().subtract(offset));
- }
- });
- } else {
- size = DomElement.isInvisible(canvas)
- ? Size.create(parseInt(canvas.getAttribute('width')),
- parseInt(canvas.getAttribute('height')))
- : DomElement.getSize(canvas);
- }
- if (PaperScript.hasAttribute(canvas, 'stats')) {
- this._stats = new Stats();
- var element = this._stats.domElement,
- style = element.style,
- offset = DomElement.getOffset(canvas);
- style.position = 'absolute';
- style.left = offset.x + 'px';
- style.top = offset.y + 'px';
- document.body.appendChild(element);
- }
- } else {
- size = Size.read(arguments, 1);
- if (size.isZero())
- size = new Size(1024, 768);
- this._canvas = CanvasProvider.getCanvas(size);
- }
- this._id = this._canvas.getAttribute('id');
- if (this._id == null)
- this._canvas.setAttribute('id', this._id = 'canvas-' + View._id++);
-
- View._views[this._id] = this;
- this._viewSize = LinkedSize.create(this, 'setViewSize',
- size.width, size.height);
- this._context = this._canvas.getContext('2d');
- this._matrix = new Matrix();
- this._zoom = 1;
-
- this._events = this._createEvents();
- DomEvent.add(this._canvas, this._events);
- if (!View._focused)
- View._focused = this;
-
- this._scope._redrawNotified = false;
- },
-
- remove: function() {
- if (!this.base())
- return false;
- if (View._focused == this)
- View._focused = null;
- delete View._views[this._id];
- DomEvent.remove(this._canvas, this._events);
- this._canvas = this._events = this._onFrame = null;
- return true;
- },
-
- _redraw: function() {
- this._redrawNeeded = true;
- if (this._onFrameCallback) {
- this._onFrameCallback(0, true);
- } else {
- this.draw();
- }
- },
-
- _transform: function(matrix, flags) {
- this._matrix.preConcatenate(matrix);
- this._bounds = null;
- this._inverse = null;
- this._redraw();
- },
-
- getCanvas: function() {
- return this._canvas;
- },
-
- getViewSize: function() {
- return this._viewSize;
- },
-
- setViewSize: function(size) {
- size = Size.read(arguments);
- var delta = size.subtract(this._viewSize);
- if (delta.isZero())
- return;
- this._canvas.width = size.width;
- this._canvas.height = size.height;
- this._viewSize.set(size.width, size.height, true);
- this._bounds = null;
- this._redrawNeeded = true;
- if (this.onResize) {
- this.onResize({
- size: size,
- delta: delta
- });
- }
- this._redraw();
- },
-
- getBounds: function() {
- if (!this._bounds)
- this._bounds = this._getInverse()._transformBounds(
- new Rectangle(new Point(), this._viewSize));
- return this._bounds;
- },
-
- getSize: function() {
- return this.getBounds().getSize();
- },
-
- getCenter: function() {
- return this.getBounds().getCenter();
- },
-
- setCenter: function(center) {
- this.scrollBy(Point.read(arguments).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.isVisible(this._canvas);
- },
-
- scrollBy: function(point) {
- this._transform(new Matrix().translate(Point.read(arguments).negate()));
- },
-
- draw: function(checkRedraw) {
- if (checkRedraw && !this._redrawNeeded)
- return false;
- if (this._stats)
- this._stats.update();
- var ctx = this._context,
- size = this._viewSize;
- ctx.clearRect(0, 0, size._width + 1, size._height + 1);
-
- ctx.save();
- this._matrix.applyToContext(ctx);
- this._scope.project.draw(ctx);
- ctx.restore();
- if (this._redrawNeeded) {
- this._redrawNeeded = false;
- this._scope._redrawNotified = false;
- }
- return true;
- },
-
- projectToView: function(point) {
- return this._matrix._transformPoint(Point.read(arguments));
- },
-
- viewToProject: function(point) {
- return this._getInverse()._transformPoint(Point.read(arguments));
- },
-
- _getInverse: function() {
- if (!this._inverse)
- this._inverse = this._matrix.createInverse();
- return this._inverse;
- },
-
- getOnFrame: function() {
- return this._onFrame;
- },
-
- setOnFrame: function(onFrame) {
- this._onFrame = onFrame;
- if (!onFrame) {
- delete this._onFrameCallback;
- return;
- }
- var that = this,
- requested = false,
- before,
- time = 0,
- count = 0;
- this._onFrameCallback = function(param, dontRequest) {
- requested = false;
- if (!that._onFrame)
- return;
- paper = that._scope;
- requested = true;
- if (!dontRequest) {
- DomEvent.requestAnimationFrame(that._onFrameCallback,
- that._canvas);
- }
- var now = Date.now() / 1000,
- delta = before ? now - before : 0;
- that._onFrame(Base.merge({
- delta: delta,
- time: time += delta,
- count: count++
- }));
- before = now;
- that.draw(true);
- };
- if (!requested)
- this._onFrameCallback();
- },
-
- onResize: null
-}, {
- statics: {
- _views: {},
- _id: 0
- }
-}, new function() {
- var tool,
- timer,
- curPoint,
- tempFocus,
- dragging = false;
-
- function viewToProject(view, event) {
- return view.viewToProject(DomEvent.getOffset(event, view._canvas));
- }
-
- function updateFocus() {
- if (!View._focused || !View._focused.isVisible()) {
- PaperScope.each(function(scope) {
- for (var i = 0, l = scope.views.length; i < l; i++) {
- var view = scope.views[i];
- if (view.isVisible()) {
- View._focused = tempFocus = view;
- throw Base.stop;
- }
- }
- });
- }
- }
-
- function mousemove(event) {
- var view;
- if (!dragging) {
- view = View._views[DomEvent.getTarget(event).getAttribute('id')];
- if (view) {
- View._focused = tempFocus = view;
- } else if (tempFocus && tempFocus == View._focused) {
- View._focused = null;
- updateFocus();
- }
- }
- if (!(view = view || View._focused) || !(tool = view._scope.tool))
- return;
- var point = event && viewToProject(view, event);
- var onlyMove = !!(!tool.onMouseDrag && tool.onMouseMove);
- if (dragging && !onlyMove) {
- curPoint = point || curPoint;
- if (curPoint && tool.onHandleEvent('mousedrag', curPoint, event)) {
- view.draw(true);
- DomEvent.stop(event);
- }
- } else if ((!dragging || onlyMove)
- && tool.onHandleEvent('mousemove', point, event)) {
- view.draw(true);
- DomEvent.stop(event);
- }
- }
-
- function mouseup(event) {
- var view = View._focused;
- if (!view || !dragging)
- return;
- dragging = false;
- curPoint = null;
- if (tool) {
- if (timer != null)
- timer = clearInterval(timer);
- if (tool.onHandleEvent('mouseup', viewToProject(view, event), event)) {
- view.draw(true);
- DomEvent.stop(event);
- }
- }
- }
-
- 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 {
- _createEvents: function() {
- var view = this;
-
- function mousedown(event) {
- View._focused = view;
- if (!(tool = view._scope.tool))
- return;
- curPoint = viewToProject(view, event);
- if (tool.onHandleEvent('mousedown', curPoint, event))
- view.draw(true);
- if (tool.eventInterval != null)
- timer = setInterval(mousemove, tool.eventInterval);
- dragging = true;
- }
-
- return {
- mousedown: mousedown,
- touchstart: mousedown,
- selectstart: selectstart
- };
- },
-
- statics: {
-
- updateFocus: updateFocus
- }
- };
-});
-
-var Event = this.Event = Base.extend({
- initialize: function(event) {
- this.event = event;
- },
-
- preventDefault: function() {
- DomEvent.preventDefault(this.event);
- },
-
- stopPropagation: function() {
- DomEvent.stopPropagation(this.event);
- },
-
- stop: function() {
- DomEvent.stop(this.event);
- },
-
- getModifiers: function() {
- return Key.modifiers;
- }
-});
-
-var KeyEvent = this.KeyEvent = Event.extend(new function() {
- return {
- initialize: function(down, key, character, event) {
- this.base(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 = this.Key = new function() {
-
- var keys = {
- 8: 'backspace',
- 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'
- },
-
- modifiers = Base.merge({
- shift: false,
- control: false,
- option: false,
- command: false,
- capsLock: false
- }),
-
- charCodeMap = {},
- keyMap = {},
- downCode;
-
- function handleKey(down, keyCode, charCode, event) {
- var character = String.fromCharCode(charCode),
- key = keys[keyCode] || character.toLowerCase(),
- handler = down ? 'onKeyDown' : 'onKeyUp',
- view = View._focused,
- scope = view && view.isVisible() && view._scope,
- tool = scope && scope.tool;
- keyMap[key] = down;
- if (tool && tool[handler]) {
- var keyEvent = new KeyEvent(down, key, character, event);
- if (tool[handler](keyEvent) === false)
- keyEvent.preventDefault();
- if (view)
- view.draw(true);
- }
- }
-
- DomEvent.add(document, {
- keydown: function(event) {
- var code = event.which || event.keyCode;
- var key = keys[code], name;
- if (key) {
- if ((name = Base.camelize(key)) in modifiers)
- modifiers[name] = true;
- charCodeMap[code] = 0;
- handleKey(true, code, null, event);
- } else {
- downCode = code;
- }
- },
-
- keypress: function(event) {
- if (downCode != null) {
- var code = event.which || event.keyCode;
- charCodeMap[downCode] = code;
- handleKey(true, downCode, code, event);
- downCode = null;
- }
- },
-
- keyup: function(event) {
- var code = event.which || event.keyCode,
- key = keys[code], name;
- if (key && (name = Base.camelize(key)) in modifiers)
- modifiers[name] = false;
- if (charCodeMap[code] != null) {
- handleKey(false, code, charCodeMap[code], event);
- delete charCodeMap[code];
- }
- }
- });
-
- return {
- modifiers: modifiers,
-
- isDown: function(key) {
- return !!keyMap[key];
- }
- };
-};
-
-var ToolEvent = this.ToolEvent = Event.extend({
- initialize: function(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 ((parent instanceof Group && !(parent instanceof Layer))
- || parent instanceof CompoundPath) {
- 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 = this.Tool = PaperScopeItem.extend({
- _list: 'tools',
- _reference: 'tool',
-
- initialize: function() {
- this.base();
- this._firstMove = true;
- this._count = 0;
- this._downCount = 0;
- },
-
- eventInterval: null,
-
- 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, pt, minDistance, maxDistance, start,
- needsChange, matchMaxDistance) {
- if (!start) {
- if (minDistance != null || maxDistance != null) {
- var minDist = minDistance != null ? minDistance : 0;
- var vector = pt.subtract(this._point);
- var distance = vector.getLength();
- if (distance < minDist)
- return false;
- var maxDist = maxDistance != null ? maxDistance : 0;
- if (maxDist != 0) {
- if (distance > maxDist) {
- pt = this._point.add(vector.normalize(maxDist));
- } else if (matchMaxDistance) {
- return false;
- }
- }
- }
- if (needsChange && pt.equals(this._point))
- return false;
- }
- this._lastPoint = start && type == 'mousemove' ? pt : this._point;
- this._point = pt;
- 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;
- },
-
- onHandleEvent: function(type, pt, event) {
- paper = this._scope;
- var called = false;
- switch (type) {
- case 'mousedown':
- this.updateEvent(type, pt, null, null, true, false, false);
- if (this.onMouseDown) {
- this.onMouseDown(new ToolEvent(this, type, event));
- called = true;
- }
- break;
- case 'mousedrag':
- var needsChange = false,
- matchMaxDistance = false;
- while (this.updateEvent(type, pt, this.minDistance,
- this.maxDistance, false, needsChange, matchMaxDistance)) {
- if (this.onMouseDrag) {
- this.onMouseDrag(new ToolEvent(this, type, event));
- called = true;
- }
- needsChange = true;
- matchMaxDistance = true;
- }
- break;
- case 'mouseup':
- if ((this._point.x != pt.x || this._point.y != pt.y)
- && this.updateEvent('mousedrag', pt, this.minDistance,
- this.maxDistance, false, false, false)) {
- if (this.onMouseDrag) {
- this.onMouseDrag(new ToolEvent(this, type, event));
- called = true;
- }
- }
- this.updateEvent(type, pt, null, this.maxDistance, false,
- false, false);
- if (this.onMouseUp) {
- this.onMouseUp(new ToolEvent(this, type, event));
- called = true;
- }
- this.updateEvent(type, pt, null, null, true, false, false);
- this._firstMove = true;
- break;
- case 'mousemove':
- while (this.updateEvent(type, pt, this.minDistance,
- this.maxDistance, this._firstMove, true, false)) {
- if (this.onMouseMove) {
- this.onMouseMove(new ToolEvent(this, type, event));
- called = true;
- }
- this._firstMove = false;
- }
- break;
- }
- return called;
- }
-});
-
-var CanvasProvider = {
- canvases: [],
- getCanvas: function(size) {
- if (this.canvases.length) {
- var canvas = this.canvases.pop();
- if ((canvas.width != size.width)
- || (canvas.height != size.height)) {
- canvas.width = size.width;
- canvas.height = size.height;
- } else {
- canvas.getContext('2d').clearRect(0, 0,
- size.width + 1, size.height + 1);
- }
- return canvas;
- } else {
- var canvas = document.createElement('canvas');
- canvas.width = size.width;
- canvas.height = size.height;
- return canvas;
- }
- },
-
- returnCanvas: function(canvas) {
- this.canvases.push(canvas);
- }
-};
-
-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,
- cos = Math.cos,
- PI = Math.PI;
-
- return {
- TOLERANCE: 10e-6,
- EPSILON: 10e-12,
-
- 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,
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p("switch",q(),S());case"throw":return p("throw",H(bj,o));case"try":return T();case"var":return H(V,o);case"const":return H(W,o);case"while":return p("while",q(),bk(t));case"with":return p("with",q(),t());default:k()}}}),P=s(function(a){var b=e("name")?H(d.token.value,g):null;a&&!b&&k(),m("(");return p(a?"defun":"function",b,function(a,b){while(!e("punc",")"))a?a=!1:m(","),e("name")||k(),b.push(d.token.value),g();g();return b}(!0,[]),function(){++d.in_function;var a=d.in_loop;d.in_loop=0;var b=R();--d.in_function,d.in_loop=a;return b}())}),S=G(bk,function(){m("{");var a=[],b=null;while(!e("punc","}"))e("eof")&&k(),e("keyword","case")?(g(),b=[],a.push([bj(),b]),m(":")):e("keyword","default")?(g(),m(":"),b=[],a.push([null,b])):(b||k(),b.push(t()));g();return a}),Y=s(function(a){if(e("operator","new")){g();return X()}if(e("operator")&&M(y,d.token.value))return bd("unary-prefix",H(d.token.value,g),Y(a));if(e("punc")){switch(d.token.value){case"(":g();return 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a=t("\n"),b;a==-1?(b=f.text.substr(f.pos),f.pos=f.text.length):(b=f.text.substring(f.pos,a),f.pos=a);return x("comment1",b,!0)}function F(){return O("Unterminated string constant",function(){var a=h(),b="";for(;;){var c=h(!0);if(c=="\\")c=D();else if(c==a)break;b+=c}return x("string",b)})}function E(a){var b=0;for(;a>0;--a){var c=parseInt(h(!0),16);isNaN(c)&&B("Invalid hex-character pattern in string"),b=b<<4|c}return b}function D(){var a=h(!0);switch(a){case"n":return"\n";case"r":return"\r";case"t":return"\t";case"b":return"\b";case"v":return" ";case"f":return"\f";case"0":return" ";case"x":return String.fromCharCode(E(2));case"u":return String.fromCharCode(E(4));case"\n":return"";default:return a}}function C(a){var b=!1,c=!1,d=!1,e=a==".",f=A(function(f,g){if(f=="x"||f=="X")return d?!1:d=!0;if(!d&&(f=="E"||f=="e"))return b?!1:b=c=!0;if(f=="-")return c||g==0&&!a?!0:!1;if(f=="+")return c;c=!1;if(f==".")return!e&&!d?e=!0:!1;return p(f)});a&&(f=a+f);var g=s(f);if(!isNaN(g))return x("num",g);B("Invalid syntax: "+f)}function B(a){u(a,f.tokline,f.tokcol,f.tokpos)}function A(a){var b="",c=g(),d=0;while(c&&a(c,d++))b+=h(),c=g();return b}function y(){while(M(j,g()))h()}function x(a,b,d){f.regex_allowed=a=="operator"&&!M(z,b)||a=="keyword"&&M(c,b)||a=="punc"&&M(k,b);var e={type:a,value:b,line:f.tokline,col:f.tokcol,pos:f.tokpos,nlb:f.newline_before};d||(e.comments_before=f.comments_before,f.comments_before=[]),f.newline_before=!1;return e}function v(){f.tokline=f.line,f.tokcol=f.col,f.tokpos=f.pos}function t(a,b){var c=f.text.indexOf(a,f.pos);if(b&&c==-1)throw w;return c}function n(){return!f.peek()}function h(a){var b=f.text.charAt(f.pos++);if(a&&!b)throw w;b=="\n"?(f.newline_before=!0,++f.line,f.col=0):++f.col;return b}function g(){return f.text.charAt(f.pos)}var f={text:b.replace(/\r\n?|[\n\u2028\u2029]/g,"\n").replace(/^\uFEFF/,""),pos:0,tokpos:0,line:0,tokline:0,col:0,tokcol:0,newline_before:!1,regex_allowed:!1,comments_before:[]};P.context=function(a){a&&(f=a);return f};return P}function v(a,b,c){return a.type==b&&(c==null||a.value==c)}function u(a,b,c,d){throw new t(a,b,c,d)}function t(a,b,c,d){this.message=a,this.line=b,this.col=c,this.pos=d}function s(a){if(f.test(a))return parseInt(a.substr(2),16);if(g.test(a))return parseInt(a.substr(1),8);if(h.test(a))return parseFloat(a)}function r(a){return q(a)||o(a)}function q(a){return a=="$"||a=="_"||n(a)}function p(a){return o(a)||n(a)}function o(a){a=a.charCodeAt(0);return a>=48&&a<=57}function n(a){a=a.charCodeAt(0);return a>=65&&a<=90||a>=97&&a<=122}var a=I(["break","case","catch","const","continue","default","delete","do","else","finally","for","function","if","in","instanceof","new","return","switch","throw","try","typeof","var","void","while","with"]),b=I(["abstract","boolean","byte","char","class","debugger","double","enum","export","extends","final","float","goto","implements","import","int","interface","long","native","package","private","protected","public","short","static","super","synchronized","throws","transient","volatile"]),c=I(["return","new","delete","throw","else","case"]),d=I(["false","null","true","undefined"]),e=I(K("+-*&%=<>!?|~^")),f=/^0x[0-9a-f]+$/i,g=/^0[0-7]+$/,h=/^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i,i=I(["in","instanceof","typeof","new","void","delete","++","--","+","-","!","~","&","|","^","*","/","%",">>","<<",">>>","<",">","<=",">=","==","===","!=","!==","?","=","+=","-=","/=","*=","%=",">>=","<<=",">>>=","|=","^=","&=","&&","||"]),j=I(K(" \n\r\t")),k=I(K("[{}(,.;:")),l=I(K("[]{}(),;:")),m=I(K("gmsiy"));t.prototype.toString=function(){return this.message+" (line: "+this.line+", col: "+this.col+", pos: "+this.pos+")"};var w={},y=I(["typeof","void","delete","--","++","!","~","-","+"]),z=I(["--","++"]),A=function(a,b,c){while(c>=","<<=",">>>=","|=","^=","&="],{"=":!0},0),B=function(a,b){for(var c=0,d=1;c","<=",">=","in","instanceof"],[">>","<<",">>>"],["+","-"],["*","/","%"]],{}),C=I(["for","do","while","switch"]),D=I(["atom","num","string","regexp","name"]);E.prototype.toString=function(){return this.name};var P=I(["name","array","object","string","dot","sub","call","regexp"]),R=I(["if","while","do","for","for-in","with"]);return{parse:F,gen_code:S,tokenizer:x,ast_walker:N}}
-
- // Math Operators
-
- var operators = {
- '+': 'add',
- '-': 'subtract',
- '*': 'multiply',
- '/': 'divide',
- '%': 'modulo',
- '==': 'equals',
- '!=': 'equals'
- };
-
- function $eval(left, operator, right) {
- var handler = operators[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;
- default:
- throw new Error('Implement Operator: ' + operator);
- }
- };
-
- // Sign Operators
-
- var signOperators = {
- '-': 'negate'
- };
-
- function $sign(operator, value) {
- var handler = signOperators[operator];
- if (value && value[handler]) {
- return value[handler]();
- }
- switch (operator) {
- case '+': return +value;
- case '-': return -value;
- default:
- throw new Error('Implement Sign Operator: ' + operator);
- }
- }
-
- // AST Helpers
-
- function isDynamic(exp) {
- var type = exp[0];
- return type != 'num' && type != 'string';
- }
-
- function handleOperator(operator, left, right) {
- // Only replace operators with calls to $operator if the left hand side
- // is potentially an object.
- if (operators[operator] && isDynamic(left)) {
- // Replace with call to $operator(left, operator, right):
- return ['call', ['name', '$eval'],
- [left, ['string', operator], right]];
- }
- }
-
- /**
- * Compiles PaperScript code into JavaScript code.
- *
- * @name PaperScript.compile
- * @function
- * @param {String} code The PaperScript code.
- * @return {String} The compiled PaperScript as JavaScript code.
- */
- function compile(code) {
- // Use parse-js to translate the code into a AST structure which is then
- // walked and parsed for operators to overload. The resulting AST is
- // translated back to code and evaluated.
- var ast = parse_js.parse(code),
- walker = parse_js.ast_walker(),
- walk = walker.walk;
-
- ast = walker.with_walkers({
- 'binary': function(operator, left, right) {
- // Handle simple mathematical operators here:
- return handleOperator(operator, left = walk(left),
- right = walk(right))
- // Always return something since we're walking left and
- || [this[0], operator, left, right];
- },
-
- 'assign': function(operator, left, right) {
- var res = handleOperator(operator, left = walk(left),
- right = walk(right));
- if (res)
- return [this[0], true, left, res];
- return [this[0], operator, left, right];
- },
-
- 'unary-prefix': function(operator, exp) {
- if (signOperators[operator] && isDynamic(exp)) {
- return ['call', ['name', '$sign'],
- [['string', operator], walk(exp)]];
- }
- }
- }, function() {
- return walk(ast);
- });
-
- return parse_js.gen_code(ast, {
- beautify: true
- });
- }
-
- function evaluate(code, scope) {
- paper = scope;
- var view = scope.view,
- tool = /on(?:Key|Mouse)(?:Up|Down|Move|Drag)/.test(code)
- && new Tool(),
- res;
- with (scope) {
- (function() {
- var onEditOptions, onSelect, onDeselect, onReselect, onMouseDown,
- onMouseUp, onMouseDrag, onMouseMove, onKeyDown, onKeyUp,
- onFrame, onResize,
- handlers = [ 'onEditOptions', 'onSelect', 'onDeselect',
- 'onReselect', 'onMouseDown', 'onMouseUp', 'onMouseDrag',
- 'onMouseMove', 'onKeyDown', 'onKeyUp'];
- res = eval(compile(code));
- if (tool) {
- Base.each(handlers, function(key) {
- tool[key] = eval(key);
- });
- }
- if (view) {
- view.onResize = onResize;
- view.setOnFrame(onFrame);
- view.draw();
- }
- }).call(scope);
- }
- return res;
- }
-
- function request(url, scope) {
- var xhr = new (window.ActiveXObject || XMLHttpRequest)(
- 'Microsoft.XMLHTTP');
- xhr.open('GET', url, true);
- if (xhr.overrideMimeType) {
- xhr.overrideMimeType('text/plain');
- }
- xhr.onreadystatechange = function() {
- if (xhr.readyState === 4) {
- return evaluate(xhr.responseText, scope);
- }
- };
- return xhr.send(null);
- }
-
- function load() {
- var scripts = document.getElementsByTagName('script');
- for (var i = 0, l = scripts.length; i < l; i++) {
- var script = scripts[i];
- if (/^text\/(?:x-|)paperscript$/.test(script.type)
- && !script.getAttribute('data-paper-loaded')) {
- var scope = new PaperScope(script);
- scope.setup(PaperScript.getAttribute(script, 'canvas'));
- if (script.src) {
- request(script.src, scope);
- } else {
- evaluate(script.innerHTML, scope);
- }
- script.setAttribute('data-paper-loaded', true);
- }
- }
- }
-
- DomEvent.add(window, { load: load });
-
- function handleAttribute(name) {
- name += 'Attribute';
- return function(el, attr) {
- return el[name](attr) || el[name]('data-paper-' + attr);
- };
- }
-
- return {
- compile: compile,
- evaluate: evaluate,
- load: load,
- getAttribute: handleAttribute('get'),
- hasAttribute: handleAttribute('has')
- };
-
-};
-
-this.load = PaperScript.load;
-
-Base.each(this, function(val, key) {
- if (val && val.prototype instanceof Base) {
- val._name = key;
- }
-});
-
-this.enumerable = true;
-return new (PaperScope.inject(this));
-};
\ No newline at end of file
diff --git a/dist/docs/resources/js/reference.js b/dist/docs/resources/js/reference.js
deleted file mode 100644
index b39ee690..00000000
--- a/dist/docs/resources/js/reference.js
+++ /dev/null
@@ -1,258 +0,0 @@
-ContentEnd = HtmlElement.extend({
- _class: 'content-end',
-
- initialize: function() {
- var anchor = $$('a[name]').getLast(),
- that = this;
- if (anchor) {
- function resize() {
- var bottom = $window.getScrollSize().height
- - anchor.getOffset().y - $window.getSize().height;
- that.setHeight(that.getHeight() - bottom);
- }
- $window.addEvents({
- load: resize,
- resize: resize
- });
- // Not sure why these are required twice, in addition to load()..
- resize();
- resize();
- }
- }
-});
-
-function createCodeMirror(place, options, source) {
- return new CodeMirror(place, Hash.create({}, {
- lineNumbers: true,
- matchBrackets: true,
- indentUnit: 4,
- tabMode: 'shift',
- value: source.getText().replace(/\t/gi, ' ').match(
- // Remove first & last empty line
- /^\s*?[\n\r]?([\u0000-\uffff]*?)[\n\r]?\s*?$/)[1]
- }, options));
-}
-
-Code = HtmlElement.extend({
- _class: 'code',
-
- initialize: function() {
- // Only format this element if it is visible, otherwise wait until
- // it is made visible and then call initialize() manually.
- if (this.initialized || this.getBounds().height == 0)
- return;
- var that = this;
- var start = this.getProperty('start');
- var highlight = this.getProperty('highlight');
- var editor = createCodeMirror(function(el) {
- that.replaceWith(el);
- }, {
- lineNumbers: !this.hasParent('.resource-text'),
- firstLineNumber: (start || 1).toInt(),
- readOnly: true
- }, this);
- if (highlight) {
- var highlights = highlight.split(',');
- for (var i = 0, l = highlights.length; i < l; i++) {
- var highlight = highlights[i].split('-');
- var hlStart = highlight[0].toInt() - 1;
- var hlEnd = highlight.length == 2
- ? highlight[1].toInt() - 1 : hlStart;
- if (start) {
- hlStart -= start - 1;
- hlEnd -= start - 1;
- }
- for (var j = hlStart; j <= hlEnd; j++) {
- editor.setLineClass(j, 'highlight');
- }
- }
- }
- this.initialized = true;
- }
-});
-
-PaperScript = HtmlElement.extend({
- _class: 'paperscript',
-
- initialize: function() {
- // Only format this element if it is visible, otherwise wait until
- // it is made visible and then call initialize() manually.
- if (this.initialized || this.getBounds().height == 0)
- return;
- var script = $('script', this),
- button = $('.button', this);
- if (!script || !button)
- return;
- var source = button.injectAfter('div', {
- className: 'source hidden'
- });
- var that = this,
- canvas = $('canvas', this),
- hasResize = canvas.getProperty('resize'),
- showSplit = this.hasClass('split'),
- sourceFirst = this.hasClass('source'),
- width, height,
- editor = null,
- hasBorders = true;
-
- function showSource(show) {
- source.modifyClass('hidden', !show);
- button.setText(show ? 'Run' : 'Source');
- if (show && !editor) {
- editor = createCodeMirror(source.$, {
- /*
- onKeyEvent: function(editor, event) {
- event = new DomEvent(event);
- if (event.type == 'keydown') {
- var pos = editor.getCursor();
- pos.ch += 4;
- editor.setCursor(pos);
- event.stop();
- }
- },
- */
- }, script);
- }
- }
-
- function runScript() {
- var scope = paper.PaperScope.get(script.$);
- if (scope) {
- // Update script to edited version
- var code = editor.getValue();
- script.setText(code);
- // Keep a reference to the used canvas, since we're going to
- // fully clear the scope and initialize again with this canvas.
- var canvas = scope.view.canvas;
- // Clear scope first, then evaluate a new script.
- scope.clear();
- scope.initialize(canvas);
- scope.evaluate(code);
- }
- }
-
- function resize() {
- if (!canvas.hasClass('hidden')) {
- width = canvas.getWidth();
- height = canvas.getHeight();
- } else if (hasResize) {
- // Can't get correct dimensions from hidden canvas,
- // so calculate again.
- var size = $window.getScrollSize();
- var offset = source.getOffset();
- width = size.width - offset.x;
- height = size.height - offset.y;
- }
- // Resize the main element as well, so that the float:right button
- // is always positioned correctly.
- that.set({ width: width, height: height });
- source.set({
- width: width - (hasBorders ? 2 : 1),
- height: height - (hasBorders ? 2 : 0)
- });
- }
-
- function toggleView() {
- var show = source.hasClass('hidden');
- resize();
- canvas.modifyClass('hidden', show);
- showSource(show);
- if (!show)
- runScript();
- // Remove padding
- button.setStyle('right',
- $('.CodeMirror', source).getScrollSize().height > height
- ? 24 : 8);
- }
-
- if (hasResize) {
- // Delay the installing of the resize event, so paper.js installs
- // its own before us.
- (function() {
- $window.addEvents({
- resize: resize
- });
- }).delay(1);
- hasBorders = false;
- source.setStyles({
- borderWidth: '0 0 0 1px'
- });
- }
-
- if (showSplit) {
- showSource(true);
- } else if (sourceFirst) {
- toggleView();
- }
-
- button.addEvents({
- click: function(event) {
- if (showSplit) {
- runScript();
- } else {
- toggleView();
- }
- event.stop();
- },
-
- mousedown: function(event) {
- event.stop();
- }
- });
- this.initialized = true;
- }
-});
-
-var lastMemberId = null;
-function toggleMember(id, scrollTo, dontScroll) {
- var link = $('#' + id + '-link');
- if (!link)
- return true;
- var desc = $('#' + id + '-description');
- var v = !link.hasClass('hidden');
- // Retrieve y-offset before any changes, so we can correct scrolling after
- var offset = (v ? link : desc).getOffset().y;
- if (lastMemberId && lastMemberId != id) {
- var prevId = lastMemberId;
- lastMemberId = null;
- toggleMember(prevId, false, true);
- }
- lastMemberId = v && id;
- link.modifyClass('hidden', v);
- desc.modifyClass('hidden', !v);
- if (!dontScroll) {
- // Correct scrolling relatively to where we are, by checking the amount
- // the element has shifted due to the above toggleMember call, and
- // correcting by 11px offset, caused by 1px border and 10px padding.
- var scroll = $window.getScrollOffset();
- $window.setScrollOffset(scroll.x, scroll.y
- + (v ? desc : link).getOffset().y - offset + 11 * (v ? 1 : -1));
- }
- if (!desc.editor && v) {
- desc.editor = $$('pre.code, .paperscript', desc).each(function(code) {
- code.initialize();
- });
- }
- if (scrollTo)
- scrollToMember(id);
- return false;
-}
-
-function scrollToElement(id) {
- var e = $('#' + id + '-member');
- if (e) {
- if (e.hasClass('member'))
- toggleMember(id);
- var offs = e.getOffset();
- $window.setScrollOffset(offs);
- } else {
- window.location.hash = id;
- }
-}
-
-$document.addEvent('domready', function() {
- var h = unescape(window.location.hash);
- if (h) scrollToElement(h.substring(1));
- if (window.paper)
- paper.load();
-});