@scratch/paper/dist/paper-core.min.js

The Swiss Army Knife of Vector Graphics Scripting

/*!
 * Paper.js v0.12.7 - The Swiss Army Knife of Vector Graphics Scripting.
 * http://paperjs.org/
 *
 * Copyright (c) 2011 - 2020, Jürg Lehni & Jonathan Puckey
 * http://juerglehni.com/ & https://puckey.studio/
 *
 * Distributed under the MIT license. See LICENSE file for details.
 *
 * All rights reserved.
 *
 * Date: Thu Dec 1 12:02:03 2022 -0800
 *
 ***
 *
 * Straps.js - Class inheritance library with support for bean-style accessors
 *
 * Copyright (c) 2006 - 2020 Jürg Lehni
 * http://juerglehni.com/
 *
 * Distributed under the MIT license.
 *
 ***
 *
 * Acorn.js
 * https://marijnhaverbeke.nl/acorn/
 *
 * Acorn is a tiny, fast JavaScript parser written in JavaScript,
 * created by Marijn Haverbeke and released under an MIT license.
 *
 */
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t=_.read(arguments),e=t.width,i=t.height;return new v(this.x-e/2,this.y-i/2,this.width+e,this.height+i)},scale:function(t,i){return this.expand(this.width*t-this.width,this.height*(i===e?t:i)-this.height)}},r.each([["Top","Left"],["Top","Right"],["Bottom","Left"],["Bottom","Right"],["Left","Center"],["Top","Center"],["Right","Center"],["Bottom","Center"]],function(t,e){var i=t.join(""),n=/^[RL]/.test(i);e>=4&&(t[1]+=n?"Y":"X");var r=t[n?0:1],s=t[n?1:0],a="get"+r,o="get"+s,h="set"+r,u="set"+s,l="get"+i,c="set"+i;this[l]=function(t){var e=t?f:d;return new e(this[a](),this[o](),this,c)},this[c]=function(){var t=f.read(arguments);this[h](t.x),this[u](t.y)}},{beans:!0})),p=v.extend({initialize:function(t,e,i,n,r,s){this._set(t,e,i,n,!0),this._owner=r,this._setter=s},_set:function(t,e,i,n,r){return this._x=t,this._y=e,this._width=i,this._height=n,r||this._owner[this._setter](this),this}},new function(){var t=v.prototype;return r.each(["x","y","width","height"],function(t){var e=r.capitalize(t),i="_"+t;this["get"+e]=function(){return this[i]},this["set"+e]=function(t){this[i]=t,this._dontNotify||this._owner[this._setter](this)}},r.each(["Point","Size","Center","Left","Top","Right","Bottom","CenterX","CenterY","TopLeft","TopRight","BottomLeft","BottomRight","LeftCenter","TopCenter","RightCenter","BottomCenter"],function(e){var i="set"+e;
this[i]=function(){this._dontNotify=!0,t[i].apply(this,arguments),this._dontNotify=!1,this._owner[this._setter](this)}},{isSelected:function(){return!!(2&this._owner._selection)},setSelected:function(t){var e=this._owner;e._changeSelection&&e._changeSelection(2,t)}}))}),m=r.extend({_class:"Matrix",initialize:function ut(t,e){var i=arguments,n=i.length,r=!0;if(n>=6?this._set.apply(this,i):1===n||2===n?t instanceof ut?this._set(t._a,t._b,t._c,t._d,t._tx,t._ty,e):Array.isArray(t)?this._set.apply(this,e?t.concat([e]):t):r=!1:n?r=!1:this.reset(),!r)throw new Error("Unsupported matrix parameters");return this},set:"#initialize",_set:function(t,e,i,n,r,s,a){return this._a=t,this._b=e,this._c=i,this._d=n,this._tx=r,this._ty=s,a||this._changed(),this},_serialize:function(t,e){return r.serialize(this.getValues(),t,!0,e)},_changed:function(){var t=this._owner;t&&(t._applyMatrix?t.transform(null,!0):t._changed(25))},clone:function(){return new m(this._a,this._b,this._c,this._d,this._tx,this._ty)},equals:function(t){return t===this||t&&this._a===t._a&&this._b===t._b&&this._c===t._c&&this._d===t._d&&this._tx===t._tx&&this._ty===t._ty},toString:function(){var t=u.instance;return"[["+[t.number(this._a),t.number(this._c),t.number(this._tx)].join(", ")+"], ["+[t.number(this._b),t.number(this._d),t.number(this._ty)].join(", ")+"]]"},reset:function(t){return this._a=this._d=1,this._b=this._c=this._tx=this._ty=0,t||this._changed(),this},apply:function(t,e){var i=this._owner;return!!i&&(i.transform(null,r.pick(t,!0),e),this.isIdentity())},translate:function(){var t=f.read(arguments),e=t.x,i=t.y;return this._tx+=e*this._a+i*this._c,this._ty+=e*this._b+i*this._d,this._changed(),this},scale:function(){var t=arguments,e=f.read(t),i=f.read(t,0,{readNull:!0});return i&&this.translate(i),this._a*=e.x,this._b*=e.x,this._c*=e.y,this._d*=e.y,i&&this.translate(i.negate()),this._changed(),this},rotate:function(t){t*=Math.PI/180;var e=f.read(arguments,1),i=e.x,n=e.y,r=Math.cos(t),s=Math.sin(t),a=i-i*r+n*s,o=n-i*s-n*r,h=this._a,u=this._b,l=this._c,c=this._d;return this._a=r*h+s*l,this._b=r*u+s*c,this._c=-s*h+r*l,this._d=-s*u+r*c,this._tx+=a*h+o*l,this._ty+=a*u+o*c,this._changed(),this},shear:function(){var t=arguments,e=f.read(t),i=f.read(t,0,{readNull:!0});i&&this.translate(i);var n=this._a,r=this._b;return this._a+=e.y*this._c,this._b+=e.y*this._d,this._c+=e.x*n,this._d+=e.x*r,i&&this.translate(i.negate()),this._changed(),this},skew:function(){var t=arguments,e=f.read(t),i=f.read(t,0,{readNull:!0}),n=Math.PI/180,r=new f(Math.tan(e.x*n),Math.tan(e.y*n));return this.shear(r,i)},append:function(t,e){if(t){var i=this._a,n=this._b,r=this._c,s=this._d,a=t._a,o=t._c,h=t._b,u=t._d,l=t._tx,c=t._ty;this._a=a*i+h*r,this._c=o*i+u*r,this._b=a*n+h*s,this._d=o*n+u*s,this._tx+=l*i+c*r,this._ty+=l*n+c*s,e||this._changed()}return this},prepend:function(t,e){if(t){var i=this._a,n=this._b,r=this._c,s=this._d,a=this._tx,o=this._ty,h=t._a,u=t._c,l=t._b,c=t._d,f=t._tx,d=t._ty;this._a=h*i+u*n,this._c=h*r+u*s,this._b=l*i+c*n,this._d=l*r+c*s,this._tx=h*a+u*o+f,this._ty=l*a+c*o+d,e||this._changed()}return this},appended:function(t){return this.clone().append(t)},prepended:function(t){return this.clone().prepend(t)},invert:function(){var t=this._a,e=this._b,i=this._c,n=this._d,r=this._tx,s=this._ty,a=t*n-e*i,o=null;return a&&!isNaN(a)&&isFinite(r)&&isFinite(s)&&(this._a=n/a,this._b=-e/a,this._c=-i/a,this._d=t/a,this._tx=(i*s-n*r)/a,this._ty=(e*r-t*s)/a,o=this),o},inverted:function(){return this.clone().invert()},concatenate:"#append",preConcatenate:"#prepend",chain:"#appended",_shiftless:function(){return new m(this._a,this._b,this._c,this._d,0,0)},_orNullIfIdentity:function(){return this.isIdentity()?null:this},isIdentity:function(){return 1===this._a&&0===this._b&&0===this._c&&1===this._d&&0===this._tx&&0===this._ty},isInvertible:function(){var t=this._a*this._d-this._c*this._b;return t&&!isNaN(t)&&isFinite(this._tx)&&isFinite(this._ty)},isSingular:function(){return!this.isInvertible()},transform:function(t,e,i){return arguments.length<3?this._transformPoint(f.read(arguments)):this._transformCoordinates(t,e,i)},_transformPoint:function(t,e,i){var n=t.x,r=t.y;return e||(e=new f),e._set(n*this._a+r*this._c+this._tx,n*this._b+r*this._d+this._ty,i)},_transformCoordinates:function(t,e,i){for(var n=0,r=2*i;n<r;n+=2){var s=t[n],a=t[n+1];e[n]=s*this._a+a*this._c+this._tx,e[n+1]=s*this._b+a*this._d+this._ty}return e},_transformCorners:function(t){var e=t.x,i=t.y,n=e+t.width,r=i+t.height,s=[e,i,n,i,n,r,e,r];return this._transformCoordinates(s,s,4)},_transformBounds:function(t,e,i){for(var n=this._transformCorners(t),r=n.slice(0,2),s=r.slice(),a=2;a<8;a++){var o=n[a],h=1&a;o<r[h]?r[h]=o:o>s[h]&&(s[h]=o)}return e||(e=new v),e._set(r[0],r[1],s[0]-r[0],s[1]-r[1],i)},inverseTransform:function(){return this._inverseTransform(f.read(arguments))},_inverseTransform:function(t,e,i){var n=this._a,r=this._b,s=this._c,a=this._d,o=this._tx,h=this._ty,u=n*a-r*s,l=null;if(u&&!isNaN(u)&&isFinite(o)&&isFinite(h)){var c=t.x-this._tx,d=t.y-this._ty;e||(e=new f),l=e._set((c*a-d*s)/u,(d*n-c*r)/u,i)}return l},decompose:function(){var t,e,i,n=this._a,r=this._b,s=this._c,a=this._d,o=n*a-r*s,h=Math.sqrt,u=Math.atan2,l=180/Math.PI;if(0!==n||0!==r){var c=h(n*n+r*r);t=Math.acos(n/c)*(r>0?1:-1),e=[c,o/c],i=[u(n*s+r*a,c*c),0]}else if(0!==s||0!==a){var d=h(s*s+a*a);t=Math.asin(s/d)*(a>0?1:-1),e=[o/d,d],i=[0,u(n*s+r*a,d*d)]}else t=0,i=e=[0,0];return{translation:this.getTranslation(),rotation:t*l,scaling:new f(e),skewing:new f(i[0]*l,i[1]*l)}},getValues:function(){return[this._a,this._b,this._c,this._d,this._tx,this._ty]},getTranslation:function(){return new f(this._tx,this._ty)},getScaling:function(){return this.decompose().scaling},getRotation:function(){return this.decompose().rotation},applyToContext:function(t){this.isIdentity()||t.transform(this._a,this._b,this._c,this._d,this._tx,this._ty)}},r.each(["a","b","c","d","tx","ty"],function(t){var e=r.capitalize(t),i="_"+t;this["get"+e]=function(){return this[i]},this["set"+e]=function(t){this[i]=t,this._changed()}},{})),y=r.extend({_class:"Line",initialize:function(t,e,i,n,r){var s=!1;arguments.length>=4?(this._px=t,this._py=e,this._vx=i,this._vy=n,s=r):(this._px=t.x,this._py=t.y,this._vx=e.x,this._vy=e.y,s=i),s||(this._vx-=this._px,this._vy-=this._py)},getPoint:function(){return new f(this._px,this._py)},getVector:function(){return new f(this._vx,this._vy)},getLength:function(){return this.getVector().getLength()},intersect:function(t,e){return y.intersect(this._px,this._py,this._vx,this._vy,t._px,t._py,t._vx,t._vy,!0,e)},getSide:function(t,e){return y.getSide(this._px,this._py,this._vx,this._vy,t.x,t.y,!0,e)},getDistance:function(t){return Math.abs(this.getSignedDistance(t))},getSignedDistance:function(t){return y.getSignedDistance(this._px,this._py,this._vx,this._vy,t.x,t.y,!0)},isCollinear:function(t){return f.isCollinear(this._vx,this._vy,t._vx,t._vy)},isOrthogonal:function(t){return f.isOrthogonal(this._vx,this._vy,t._vx,t._vy)},statics:{intersect:function(t,e,i,n,r,s,a,o,h,u){h||(i-=t,n-=e,a-=r,o-=s);var c=i*o-n*a;if(!l.isMachineZero(c)){var d=t-r,_=e-s,g=(a*_-o*d)/c,v=(i*_-n*d)/c,p=1e-12,m=-p,y=1+p;if(u||m<g&&g<y&&m<v&&v<y)return u||(g=g<=0?0:g>=1?1:g),new f(t+g*i,e+g*n)}},getSide:function(t,e,i,n,r,s,a,o){a||(i-=t,n-=e);var h=r-t,u=s-e,c=h*n-u*i;return!o&&l.isMachineZero(c)&&(c=(h*i+h*i)/(i*i+n*n),c>=0&&c<=1&&(c=0)),c<0?-1:c>0?1:0},getSignedDistance:function(t,e,i,n,r,s,a){return a||(i-=t,n-=e),0===i?n>0?r-t:t-r:0===n?i<0?s-e:e-s:((r-t)*n-(s-e)*i)/(n>i?n*Math.sqrt(1+i*i/(n*n)):i*Math.sqrt(1+n*n/(i*i)))},getDistance:function(t,e,i,n,r,s,a){return Math.abs(y.getSignedDistance(t,e,i,n,r,s,a))}}}),w=o.extend({_class:"Project",_list:"projects",_reference:"project",_compactSerialize:!0,initialize:function(t){o.call(this,!0),this._children=[],this._namedChildren={},this._activeLayer=null,this._currentStyle=new H(null,null,this),this._view=W.create(this,t||et.getCanvas(1,1)),this._selectionItems={},this._selectionCount=0,this._updateVersion=0},_serialize:function(t,e){return r.serialize(this._children,t,!0,e)},_changed:function(t,e){if(1&t){var i=this._view;i&&(i._needsUpdate=!0,!i._requested&&i._autoUpdate&&i.requestUpdate())}var n=this._changes;if(n&&e){var r=this._changesById,s=e._id,a=r[s];a?a.flags|=t:n.push(r[s]={item:e,flags:t})}},clear:function(){for(var t=this._children,e=t.length-1;e>=0;e--)t[e].remove()},isEmpty:function(){return!this._children.length},remove:function lt(){return!!lt.base.call(this)&&(this._view&&this._view.remove(),!0)},getView:function(){return this._view},getCurrentStyle:function(){return this._currentStyle},setCurrentStyle:function(t){this._currentStyle.set(t)},getIndex:function(){return this._index},getOptions:function(){return this._scope.settings},getLayers:function(){return this._children},getActiveLayer:function(){return this._activeLayer||new C({project:this,insert:!0})},getSymbolDefinitions:function(){var t=[],e={};return this.getItems({"class":I,match:function(i){var n=i._definition,r=n._id;return e[r]||(e[r]=!0,t.push(n)),!1}}),t},getSymbols:"getSymbolDefinitions",getSelectedItems:function(){var t=this._selectionItems,e=[];for(var i in t){var n=t[i],r=n._selection;1&r&&n.isInserted()?e.push(n):r||this._updateSelection(n)}return e},_updateSelection:function(t){var e=t._id,i=this._selectionItems;t._selection?i[e]!==t&&(this._selectionCount++,i[e]=t):i[e]===t&&(this._selectionCount--,delete i[e])},selectAll:function(){for(var t=this._children,e=0,i=t.length;e<i;e++)t[e].setFullySelected(!0)},deselectAll:function(){var t=this._selectionItems;for(var e in t)t[e].setFullySelected(!1)},addLayer:function(t){return this.insertLayer(e,t)},insertLayer:function(t,e){if(e instanceof C){e._remove(!1,!0),r.splice(this._children,[e],t,0),e._setProject(this,!0);var i=e._name;i&&e.setName(i),this._changes&&e._changed(5),this._activeLayer||(this._activeLayer=e)}else e=null;return e},_insertItem:function(t,i,n){return i=this.insertLayer(t,i)||(this._activeLayer||this._insertItem(e,new C(x.NO_INSERT),!0)).insertChild(t,i),n&&i.activate&&i.activate(),i},getItems:function(t){return x._getItems(this,t)},getItem:function(t){return x._getItems(this,t,null,null,!0)[0]||null},importJSON:function(t){this.activate();var e=this._activeLayer;return r.importJSON(t,e&&e.isEmpty()&&e)},removeOn:function(t){var e=this._removeSets;if(e){"mouseup"===t&&(e.mousedrag=null);var i=e[t];if(i){for(var n in i){var r=i[n];for(var s in e){var a=e[s];a&&a!=i&&delete a[r._id]}r.remove()}e[t]=null}}},draw:function(t,e,i){this._updateVersion++,t.save(),e.applyToContext(t);for(var n=this._children,s=new r({offset:new f(0,0),pixelRatio:i,viewMatrix:e.isIdentity()?null:e,matrices:[new m],updateMatrix:!0}),a=0,o=n.length;a<o;a++)n[a].draw(t,s);if(t.restore(),this._selectionCount>0){t.save(),t.strokeWidth=1;var h=this._selectionItems,u=this._scope.settings.handleSize,l=this._updateVersion;for(var c in h)h[c]._drawSelection(t,e,u,h,l);t.restore()}}}),x=r.extend(s,{statics:{extend:function ct(t){return t._serializeFields&&(t._serializeFields=r.set({},this.prototype._serializeFields,t._serializeFields)),ct.base.apply(this,arguments)},NO_INSERT:{insert:!1}},_class:"Item",_name:null,_applyMatrix:!0,_canApplyMatrix:!0,_canScaleStroke:!1,_pivot:null,_visible:!0,_blendMode:"normal",_opacity:1,_locked:!1,_guide:!1,_clipMask:!1,_selection:0,_selectBounds:!0,_selectChildren:!1,_serializeFields:{name:null,applyMatrix:null,matrix:new m,pivot:null,visible:!0,blendMode:"normal",opacity:1,locked:!1,guide:!1,clipMask:!1,selected:!1,data:{}},_prioritize:["applyMatrix"]},new function(){var t=["onMouseDown","onMouseUp","onMouseDrag","onClick","onDoubleClick","onMouseMove","onMouseEnter","onMouseLeave"];return r.each(t,function(t){this._events[t]={install:function(t){this.getView()._countItemEvent(t,1)},uninstall:function(t){this.getView()._countItemEvent(t,-1)}}},{_events:{onFrame:{install:function(){this.getView()._animateItem(this,!0)},uninstall:function(){this.getView()._animateItem(this,!1)}},onLoad:{},onError:{}},statics:{_itemHandlers:t}})},{initialize:function(){},_initialize:function(t,i){var n=t&&r.isPlainObject(t),s=n&&t.internal===!0,a=this._matrix=new m,o=n&&t.project||st.project,h=st.settings;return this._id=s?null:c.get(),this._parent=this._index=null,this._applyMatrix=this._canApplyMatrix&&h.applyMatrix,i&&a.translate(i),a._owner=this,this._style=new H(o._currentStyle,this,o),s||n&&0==t.insert||!h.insertItems&&(!n||t.insert!==!0)?this._setProject(o):(n&&t.parent||o)._insertItem(e,this,!0),n&&t!==x.NO_INSERT&&this.set(t,{internal:!0,insert:!0,project:!0,parent:!0}),n},_serialize:function(t,e){function i(i){for(var a in i){var o=s[a];r.equals(o,"leading"===a?1.2*i.fontSize:i[a])||(n[a]=r.serialize(o,t,"data"!==a,e))}}var n={},s=this;return i(this._serializeFields),this instanceof b||i(this._style._defaults),[this._class,n]},_changed:function(t){var i=this._symbol,n=this._parent||i,r=this._project;8&t&&(this._bounds=this._position=this._decomposed=e),16&t&&(this._globalMatrix=e),n&&72&t&&x._clearBoundsCache(n),2&t&&x._clearBoundsCache(this),r&&r._changed(t,this),i&&i._changed(t)},getId:function(){return this._id},getName:function(){return this._name},setName:function(t){if(this._name&&this._removeNamed(),t===+t+"")throw new Error("Names consisting only of numbers are not supported.");var i=this._getOwner();if(t&&i){var 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