konva/dist/kinetic-core.min.js

/**
 * KineticJS JavaScript Library core
 * http://www.kineticjs.com/
 * Copyright 2012, Eric Rowell
 * Licensed under the MIT or GPL Version 2 licenses.
 * Date: Apr 01 2012
 *
 * Copyright (C) 2011 - 2012 by Eric Rowell
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
var Kinetic={};Kinetic.GlobalObject={stages:[],idCounter:0,frame:{time:0,timeDiff:0,lastTime:0},drag:{moving:!1,node:undefined,offset:{x:0,y:0}},extend:function(a,b){for(var c in b.prototype)b.prototype.hasOwnProperty(c)&&a.prototype[c]===undefined&&(a.prototype[c]=b.prototype[c])},_isaCanvasAnimating:function(){for(var a=0;a<this.stages.length;a++){var b=this.stages[a];if(b.isAnimating)return!0;for(var c=0;c<b.children.length;c++){var d=b.children[c];if(d.transitions.length>0)return!0}}return this.frame.lastTime=0,!1},_endTransition:function(){var a=this.config;for(var b in a)if(a.hasOwnProperty(b))if(a[b].x!==undefined||a[b].y!==undefined){var c=["x","y"];for(var d=0;d<c.length;d++){var e=c[d];a[b][e]!==undefined&&(this.node[b][e]=a[b][e])}}else this.node[b]=a[b]},_transitionPow:function(a,b,c,d){var e=d(),f=a.config,g=this.frame.timeDiff;if(c!==undefined){var h=a.starts[b][c],i=f[b][c]-h,j=i/Math.pow(f.duration*1e3,e);a.node[b][c]=j*Math.pow(a.time,e)+h}else{var h=a.starts[b],i=f[b]-h,j=i/Math.pow(f.duration*1e3,e);a.node[b]=j*Math.pow(a.time,e)+h}},_chooseTransition:function(a,b,c){var d=a.config,e=this;switch(d.easing){case"ease-in":this._transitionPow(a,b,c,function(){return 2.5});break;case"ease-out":this._transitionPow(a,b,c,function(){return.4});break;case"ease-in-out":this._transitionPow(a,b,c,function(){var b=-2.1,c=b/(d.duration*1e3);return 2.5+c*a.time});break;default:this._transitionPow(a,b,c,function(){return 1})}},_runTransition:function(a){var b=a.config;for(var c in b)if(b.hasOwnProperty(c)&&c!=="duration"&&c!=="easing"&&c!=="callback")if(b[c].x!==undefined||b[c].y!==undefined){var d=["x","y"];for(var e=0;e<d.length;e++){var f=d[e];b[c][f]!==undefined&&this._chooseTransition(a,c,f)}}else this._chooseTransition(a,c)},_clearTransition:function(a){var b=a.getLayer();for(var c=0;c<b.transitions.length;c++)b.transitions[c].node.id===a.id&&b.transitions.splice(c,1)},_runFrames:function(){for(var a=0;a<this.stages.length;a++){var b=this.stages[a];b.isAnimating&&b.onFrameFunc!==undefined&&b.onFrameFunc(this.frame);var c=b.getChildren();for(var d=0;d<c.length;d++){var e=c[d],f=!1;for(var g=0;g<e.transitions.length;g++){f=!0;var h=e.transitions[g];h.time+=this.frame.timeDiff,h.time>=h.config.duration*1e3?(this._endTransition.apply(h),this._clearTransition(h.node),h.config.callback!==undefined&&h.config.callback()):this._runTransition(h)}f&&e.draw()}}},_updateFrameObject:function(){var a=new Date,b=a.getTime();this.frame.lastTime===0?this.frame.lastTime=b:(this.frame.timeDiff=b-this.frame.lastTime,this.frame.lastTime=b,this.frame.time+=this.frame.timeDiff)},_animationLoop:function(){if(this._isaCanvasAnimating()){this._updateFrameObject(),this._runFrames();var a=this;requestAnimFrame(function(){a._animationLoop()})}},_handleAnimation:function(){var a=this;this._isaCanvasAnimating()&&a._animationLoop()}},window.requestAnimFrame=function(a){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(a){window.setTimeout(a,1e3/60)}}(),Kinetic.Node=function(a){this.visible=!0,this.isListening=!0,this.name=undefined,this.alpha=1,this.x=0,this.y=0,this.scale={x:1,y:1},this.rotation=0,this.centerOffset={x:0,y:0},this.eventListeners={},this.dragConstraint="none",this.dragBounds={},this._draggable=!1;if(a)for(var b in a)switch(b){case"draggable":this.draggable(a[b]);break;case"listen":this.listen(a[b]);break;case"rotationDeg":this.rotation=a[b]*Math.PI/180;break;default:this[b]=a[b]}this.centerOffset.x===undefined&&(this.centerOffset.x=0),this.centerOffset.y===undefined&&(this.centerOffset.y=0)},Kinetic.Node.prototype={on:function(a,b){var c=a.split(" ");for(var d=0;d<c.length;d++){var e=c[d],f=e.indexOf("touch")===-1?"on"+e:e,g=f.split("."),h=g[0],i=g.length>1?g[1]:"";this.eventListeners[h]||(this.eventListeners[h]=[]),this.eventListeners[h].push({name:i,handler:b})}},off:function(a){var b=a.split(" ");for(var c=0;c<b.length;c++){var d=b[c],e=d.indexOf("touch")===-1?"on"+d:d,f=e.split("."),g=f[0];if(this.eventListeners[g]&&f.length>1){var h=f[1];for(var i=0;i<this.eventListeners[g].length;i++)if(this.eventListeners[g][i].name===h){this.eventListeners[g].splice(i,1),this.eventListeners[g].length===0&&(this.eventListeners[g]=undefined);break}}else this.eventListeners[g]=undefined}},show:function(){this.visible=!0},hide:function(){this.visible=!1},getZIndex:function(){return this.index},getAbsoluteZIndex:function(){function e(b){var f=[];for(var g=0;g<b.length;g++){var h=b[g];d++,h.className!=="Shape"&&(f=f.concat(h.getChildren())),h.id===c.id&&(g=b.length)}f.length>0&&f[0].getLevel()<=a&&e(f)}var a=this.getLevel(),b=this.getStage(),c=this,d=0;return c.className!=="Stage"&&e(c.getStage().getChildren()),d},getLevel:function(){var a=0,b=this.parent;while(b)a++,b=b.parent;return a},setScale:function(a,b){b?(this.scale.x=a,this.scale.y=b):(this.scale.x=a,this.scale.y=a)},getScale:function(){return this.scale},setPosition:function(a,b){this.x=a,this.y=b},getPosition:function(){return{x:this.x,y:this.y}},getAbsolutePosition:function(){return this.getAbsoluteTransform().getTranslation()},move:function(a,b){this.x+=a,this.y+=b},setRotation:function(a){this.rotation=a},setRotationDeg:function(a){this.rotation=a*Math.PI/180},getRotation:function(){return this.rotation},getRotationDeg:function(){return this.rotation*180/Math.PI},rotate:function(a){this.rotation+=a},rotateDeg:function(a){this.rotation+=a*Math.PI/180},listen:function(a){this.isListening=a},moveToTop:function(){var a=this.index;this.parent.children.splice(a,1),this.parent.children.push(this),this.parent._setChildrenIndices()},moveUp:function(){var a=this.index;this.parent.children.splice(a,1),this.parent.children.splice(a+1,0,this),this.parent._setChildrenIndices()},moveDown:function(){var a=this.index;a>0&&(this.parent.children.splice(a,1),this.parent.children.splice(a-1,0,this),this.parent._setChildrenIndices())},moveToBottom:function(){var a=this.index;this.parent.children.splice(a,1),this.parent.children.unshift(this),this.parent._setChildrenIndices()},setZIndex:function(a){var b=this.index;this.parent.children.splice(b,1),this.parent.children.splice(a,0,this),this.parent._setChildrenIndices()},setAlpha:function(a){this.alpha=a},getAlpha:function(){return this.alpha},getAbsoluteAlpha:function(){var a=1,b=this;while(b.className!=="Stage")a*=b.alpha,b=b.parent;return a},draggable:function(a){this.draggable!==a&&(a?this._initDrag():this._dragCleanup(),this._draggable=a)},isDragging:function(){var a=Kinetic.GlobalObject;return a.drag.node!==undefined&&a.drag.node.id===this.id&&a.drag.moving},moveTo:function(a){var b=this.parent;b.children.splice(this.index,1),b._setChildrenIndices(),a.children.push(this),this.index=a.children.length-1,this.parent=a,a._setChildrenIndices(),this.name&&(b.childrenNames[this.name]=undefined,a.childrenNames[this.name]=this)},getParent:function(){return this.parent},getLayer:function(){return this.className==="Layer"?this:this.getParent().getLayer()},getStage:function(){return this.className==="Stage"?this:this.getParent().getStage()},getName:function(){return this.name},setCenterOffset:function(a,b){this.centerOffset.x=a,this.centerOffset.y=b},getCenterOffset:function(){return this.centerOffset},transitionTo:function(a){var b=this.getLayer(),c=this,d=a.duration*1e3,e={};Kinetic.GlobalObject._clearTransition(this);for(var f in a)if(a.hasOwnProperty(f)&&f!=="duration"&&f!=="easing"&&f!=="callback")if(a[f].x!==undefined||a[f].y!==undefined){e[f]={};var g=["x","y"];for(var h=0;h<g.length;h++){var i=g[h];a[f][i]!==undefined&&(e[f][i]=this[f][i])}}else e[f]=this[f];b.transitions.push({id:b.transitionIdCounter++,time:0,config:a,node:this,starts:e}),Kinetic.GlobalObject._handleAnimation()},setDragConstraint:function(a){this.dragConstraint=a},getDragConstraint:function(){return this.dragConstraint},setDragBounds:function(a){this.dragBounds=a},getDragBounds:function(){return this.dragBounds},getAbsoluteTransform:function(){var a=new Kinetic.Transform,b=[],c=this.parent;b.unshift(this);while(c)b.unshift(c),c=c.parent;for(var d=0;d<b.length;d++){var e=b[d],f=e.getTransform();a.multiply(f)}return a},getTransform:function(){var a=new Kinetic.Transform;return(this.x!==0||this.y!==0)&&a.translate(this.x,this.y),this.rotation!==0&&a.rotate(this.rotation),(this.scale.x!==1||this.scale.y!==1)&&a.scale(this.scale.x,this.scale.y),(this.centerOffset.x!==0||this.centerOffset.y!==0)&&a.translate(-1*this.centerOffset.x,-1*this.centerOffset.y),a},_initDrag:function(){var a=Kinetic.GlobalObject,b=this;this.on("mousedown.initdrag touchstart.initdrag",function(c){var d=b.getStage(),e=d.getUserPosition();if(e){var f=b.getTransform().getTranslation(),g=b.getAbsoluteTransform().getTranslation();a.drag.node=b,a.drag.offset.x=e.x-b.getAbsoluteTransform().getTranslation().x,a.drag.offset.y=e.y-b.getAbsoluteTransform().getTranslation().y}})},_dragCleanup:function(){this.off("mousedown.initdrag"),this.off("touchstart.initdrag")},_handleEvents:function(a,b){this.className==="Shape"&&(b.shape=this);var c=this.getStage();this._handleEvent(this,c.mouseoverShape,c.mouseoutShape,a,b)},_handleEvent:function(a,b,c,d,e){var f=a.eventListeners,g=!0;d==="onmouseover"&&c&&c.id===a.id?g=!1:d==="onmouseout"&&b&&b.id===a.id&&(g=!1);if(f[d]&&g){var h=f[d];for(var i=0;i<h.length;i++)h[i].handler.apply(a,[e])}var j=b?b.parent:undefined,k=c?c.parent:undefined;!e.cancelBubble&&a.parent.className!=="Stage"&&this._handleEvent(a.parent,j,k,d,e)}},Kinetic.Container=function(){this.children=[],this.childrenNames={}},Kinetic.Container.prototype={getChildren:function(){return this.children},getChild:function(a){return this.childrenNames[a]},removeChildren:function(){while(this.children.length>0)this.remove(this.children[0])},_remove:function(a){a.name!==undefined&&(this.childrenNames[a.name]=undefined),this.children.splice(a.index,1),this._setChildrenIndices(),a=undefined},_drawChildren:function(){var a=this.children;for(var b=0;b<a.length;b++){var c=a[b];c.className==="Shape"?c._draw(c.getLayer()):c._draw()}},_add:function(a){a.name&&(this.childrenNames[a.name]=a),a.id=Kinetic.GlobalObject.idCounter++,a.index=this.children.length,a.parent=this,this.children.push(a)},_setChildrenIndices:function(){if(this.className==="Stage"){var a=this.content.children,b=a[0],c=a[1];this.content.innerHTML="",this.content.appendChild(b),this.content.appendChild(c)}for(var d=0;d<this.children.length;d++)this.children[d].index=d,this.className==="Stage"&&this.content.appendChild(this.children[d].canvas)}},Kinetic.Stage=function(a){typeof a.container=="string"&&(a.container=document.getElementById(a.container)),this.className="Stage",this.container=a.container,this.content=document.createElement("div"),this.width=a.width,this.height=a.height,this.scale={x:1,y:1},this.dblClickWindow=400,this.clickStart=!1,this.targetShape=undefined,this.targetFound=!1,this.mouseoverShape=undefined,this.mouseoutShape=undefined,this.mousePos=undefined,this.mouseDown=!1,this.mouseUp=!1,this.touchPos=undefined,this.touchStart=!1,this.touchEnd=!1,this.id=Kinetic.GlobalObject.idCounter++,this.isAnimating=!1,this.onFrameFunc=undefined,this._buildDOM(),this._listen(),this._prepareDrag(),Kinetic.GlobalObject.stages.push(this),Kinetic.Container.apply(this,[]),Kinetic.Node.apply(this,[a])},Kinetic.Stage.prototype={onFrame:function(a){this.onFrameFunc=a},start:function(){this.isAnimating=!0,Kinetic.GlobalObject._handleAnimation()},stop:function(){this.isAnimating=!1,Kinetic.GlobalObject._handleAnimation()},draw:function(){this._drawChildren()},setSize:function(a,b){var c=this.children;for(var d=0;d<c.length;d++){var e=c[d];e.getCanvas().width=a,e.getCanvas().height=b,e.draw()}this.width=a,this.height=b,this.bufferLayer.getCanvas().width=a,this.bufferLayer.getCanvas().height=b,this.pathLayer.getCanvas().width=a,this.pathLayer.getCanvas().height=b},getSize:function(){return{width:this.width,height:this.height}},clear:function(){var a=this.children;for(var b=0;b<a.length;b++)a[b].clear()},toDataURL:function(a,b,c){function g(h){var i=f[h].getCanvas().toDataURL(),j=new Image;j.onload=function(){e.drawImage(this,0,0),h++,h<f.length?g(h):a(d.getCanvas().toDataURL(b,c))},j.src=i}var d=this.bufferLayer,e=d.getContext(),f=this.children;d.clear(),g(0)},remove:function(a){this.content.removeChild(a.canvas),this._remove(a)},onContainer:function(a,b){var c=a.split(" ");for(var d=0;d<c.length;d++){var e=c[d];this.container.addEventListener(e,b,!1)}},add:function(a){a.name&&(this.childrenNames[a.name]=a),a.canvas.width=this.width,a.canvas.height=this.height,this._add(a),a.draw(),this.content.appendChild(a.canvas)},getMousePosition:function(a){return this.mousePos},getTouchPosition:function(a){return this.touchPos},getUserPosition:function(a){return this.getTouchPosition()||this.getMousePosition()},getContainer:function(){return this.container},getStage:function(){return this},_detectEvent:function(a,b){var c=Kinetic.GlobalObject.drag.moving,d=Kinetic.GlobalObject,e=this.getUserPosition(),f=a.eventListeners;this.targetShape&&a.id===this.targetShape.id&&(this.targetFound=!0);if(a.visible&&e!==undefined&&a._isPointInPath(e)){if(!c&&this.mouseDown)return this.mouseDown=!1,this.clickStart=!0,a._handleEvents("onmousedown",b),!0;if(this.mouseUp)return this.mouseUp=!1,a._handleEvents("onmouseup",b),this.clickStart&&(!d.drag.moving||!d.drag.node)&&(a._handleEvents("onclick",b),a.inDoubleClickWindow&&a._handleEvents("ondblclick",b),a.inDoubleClickWindow=!0,setTimeout(function(){a.inDoubleClickWindow=!1},this.dblClickWindow)),!0;if(this.touchStart){this.touchStart=!1,a._handleEvents("touchstart",b);if(f.ondbltap&&a.inDoubleClickWindow){var g=f.ondbltap;for(var h=0;h<g.length;h++)g[h].handler.apply(a,[b])}return a.inDoubleClickWindow=!0,setTimeout(function(){a.inDoubleClickWindow=!1},this.dblClickWindow),!0}if(this.touchEnd)return this.touchEnd=!1,a._handleEvents("touchend",b),!0;if(!c&&this._isNewTarget(a,b))return this.mouseoutShape&&(this.mouseoverShape=a,this.mouseoutShape._handleEvents("onmouseout",b),this.mouseoverShape=undefined),a._handleEvents("onmouseover",b),this._setTarget(a),!0;if(!c)return a._handleEvents("onmousemove",b),a._handleEvents("touchmove",b),!0}else if(!c&&this.targetShape&&this.targetShape.id===a.id)return this._setTarget(undefined),this.mouseoutShape=a,!0;return!1},_setTarget:function(a){this.targetShape=a,this.targetFound=!0},_isNewTarget:function(a,b){if(!this.targetShape||!this.targetFound&&a.id!==this.targetShape.id){if(this.targetShape){var c=this.targetShape.eventListeners;c&&(this.mouseoutShape=this.targetShape)}return!0}return!1},_traverseChildren:function(a,b){var c=a.children;for(var d=c.length-1;d>=0;d--){var e=c[d];if(e.isListening)if(e.className==="Shape"){var f=this._detectEvent(e,b);if(f)return!0}else{var f=this._traverseChildren(e,b);if(f)return!0}}return!1},_handleStageEvent:function(a){var b=Kinetic.GlobalObject;a||(a=window.event),this._setMousePosition(a),this._setTouchPosition(a),this._clearDefaultLayers(),this.targetFound=!1;var c=!1;for(var d=this.children.length-1;d>=0;d--){var e=this.children[d];e.visible&&d>=0&&e.isListening&&this._traverseChildren(e,a)&&(d=-1,c=!0)}!c&&this.mouseoutShape&&(this.mouseoutShape._handleEvents("onmouseout",a),this.mouseoutShape=undefined)},_clearDefaultLayers:function(){var a=this.pathLayer;a.clear()},_listen:function(){var a=this;this.container.addEventListener("mousedown",function(b){a.mouseDown=!0,a._handleStageEvent(b)},!1),this.container.addEventListener("mousemove",function(b){a.mouseUp=!1,a.mouseDown=!1,a._handleStageEvent(b)},!1),this.container.addEventListener("mouseup",function(b){a.mouseUp=!0,a.mouseDown=!1,a._handleStageEvent(b),a.clickStart=!1},!1),this.container.addEventListener("mouseover",function(b){a._handleStageEvent(b)},!1),this.container.addEventListener("mouseout",function(b){a.mousePos=undefined},!1),this.container.addEventListener("touchstart",function(b){b.preventDefault(),a.touchStart=!0,a._handleStageEvent(b)},!1),this.container.addEventListener("touchmove",function(b){b.preventDefault(),a._handleStageEvent(b)},!1),this.container.addEventListener("touchend",function(b){b.preventDefault(),a.touchEnd=!0,a._handleStageEvent(b)},!1)},_setMousePosition:function(a){var b=a.offsetX||a.clientX-this._getContainerPosition().left+window.pageXOffset,c=a.offsetY||a.clientY-this._getContainerPosition().top+window.pageYOffset;this.mousePos={x:b,y:c}},_setTouchPosition:function(a){if(a.touches!==undefined&&a.touches.length===1){var b=a.touches[0],c=b.clientX-this._getContainerPosition().left+window.pageXOffset,d=b.clientY-this._getContainerPosition().top+window.pageYOffset;this.touchPos={x:c,y:d}}},_getContainerPosition:function(){var a=this.container,b=0,c=0;while(a&&a.tagName!=="BODY")b+=a.offsetTop-a.scrollTop,c+=a.offsetLeft-a.scrollLeft,a=a.offsetParent;return{top:b,left:c}},_modifyPathContext:function(a){a.stroke=function(){},a.fill=function(){},a.fillRect=function(a,b,c,d){layer.context.rect(a,b,c,d)},a.strokeRect=function(a,b,c,d){layer.context.rect(a,b,c,d)},a.drawImage=function(){},a.fillText=function(){},a.strokeText=function(){}},_endDrag:function(a){var b=Kinetic.GlobalObject;b.drag.node&&b.drag.moving&&(b.drag.moving=!1,b.drag.node._handleEvents("ondragend",a)),b.drag.node=undefined},_prepareDrag:function(){var a=this;this.onContainer("mousemove touchmove",function(b){var c=Kinetic.GlobalObject,d=c.drag.node;if(d){var e=a.getUserPosition(),f=d.dragConstraint,g=d.dragBounds,h={x:e.x-c.drag.offset.x,y:e.y-c.drag.offset.y};g.left!==undefined&&h.x<g.left&&(h.x=g.left),g.right!==undefined&&h.x>g.right&&(h.x=g.right),g.top!==undefined&&h.y<g.top&&(h.y=g.top),g.bottom!==undefined&&h.y>g.bottom&&(h.y=g.bottom),f==="horizontal"?h.y=d.y:f==="vertical"&&(h.x=d.x);var i=d.rotation,j={x:d.scale.x,y:d.scale.y};d.rotation=0,d.scale={x:1,y:1};var k=d.getAbsoluteTransform();k.invert(),k.translate(h.x,h.y),d.x+=k.getTranslation().x,d.y+=k.getTranslation().y,d.rotate(i),d.scale={x:j.x,y:j.y},c.drag.node.getLayer().draw(),c.drag.moving||(c.drag.moving=!0,c.drag.node._handleEvents("ondragstart",b)),c.drag.node._handleEvents("ondragmove",b)}},!1),this.onContainer("mouseup touchend mouseout",function(b){a._endDrag(b)})},_buildDOM:function(){this.content.style.width=this.width+"px",this.content.style.height=this.height+"px",this.content.style.position="relative",this.content.style.display="inline-block",this.content.className="kineticjs-content",this.container.appendChild(this.content),this.bufferLayer=new Kinetic.Layer,this.pathLayer=new Kinetic.Layer,this.bufferLayer.parent=this,this.pathLayer.parent=this,this._modifyPathContext(this.pathLayer.context),this.bufferLayer.getCanvas().style.display="none",this.pathLayer.getCanvas().style.display="none",this.bufferLayer.canvas.width=this.width,this.bufferLayer.canvas.height=this.height,this.bufferLayer.canvas.className="kineticjs-buffer-layer",this.content.appendChild(this.bufferLayer.canvas),this.pathLayer.canvas.width=this.width,this.pathLayer.canvas.height=this.height,this.pathLayer.canvas.className="kineticjs-path-layer",this.content.appendChild(this.pathLayer.canvas)}},Kinetic.GlobalObject.extend(Kinetic.Stage,Kinetic.Container),Kinetic.GlobalObject.extend(Kinetic.Stage,Kinetic.Node),Kinetic.Layer=function(a){this.className="Layer",this.canvas=document.createElement("canvas"),this.context=this.canvas.getContext("2d"),this.canvas.style.position="absolute",this.transitions=[],this.transitionIdCounter=0,Kinetic.Container.apply(this,[]),Kinetic.Node.apply(this,[a])},Kinetic.Layer.prototype={draw:function(){this._draw()},clear:function(){var a=this.getContext(),b=this.getCanvas();a.clearRect(0,0,b.width,b.height)},getCanvas:function(){return this.canvas},getContext:function(){return this.context},add:function(a){this._add(a)},remove:function(a){this._remove(a)},_draw:function(){this.clear(),this.visible&&this._drawChildren()}},Kinetic.GlobalObject.extend(Kinetic.Layer,Kinetic.Container),Kinetic.GlobalObject.extend(Kinetic.Layer,Kinetic.Node),Kinetic.Group=function(a){this.className="Group",Kinetic.Container.apply(this,[]),Kinetic.Node.apply(this,[a])},Kinetic.Group.prototype={add:function(a){this._add(a)},remove:function(a){this._remove(a)},_draw:function(){this.visible&&this._drawChildren()}},Kinetic.GlobalObject.extend(Kinetic.Group,Kinetic.Container),Kinetic.GlobalObject.extend(Kinetic.Group,Kinetic.Node),Kinetic.Shape=function(a){this.className="Shape";if(a.stroke!==undefined||a.strokeWidth!==undefined)a.stroke===undefined?a.stroke="black":a.strokeWidth===undefined&&(a.strokeWidth=2);this.drawFunc=a.drawFunc,Kinetic.Node.apply(this,[a])},Kinetic.Shape.prototype={getContext:function(){return this.tempLayer.getContext()},getCanvas:function(){return this.tempLayer.getCanvas()},fillStroke:function(){var a=this.getContext();this.fill!==undefined&&(a.fillStyle=this.fill,a.fill()),this.stroke!==undefined&&(a.lineWidth=this.strokeWidth===undefined?1:this.strokeWidth,a.strokeStyle=this.stroke,a.stroke())},applyLineJoin:function(){var a=this.getContext();this.lineJoin!==undefined&&(a.lineJoin=this.lineJoin)},setFill:function(a){this.fill=a},getFill:function(){return this.fill},setStroke:function(a){this.stroke=a},getStroke:function(){return this.stroke},setLineJoin:function(a){this.lineJoin=a},getLineJoin:function(){return this.lineJoin},setStrokeWidth:function(a){this.strokeWidth=a},getStrokeWidth:function(){return this.strokeWidth},setDrawFunc:function(a){this.drawFunc=a},_draw:function(a){if(this.visible){var b=a.getStage(),c=a.getContext(),d=[],e=this.parent;d.unshift(this);while(e)d.unshift(e),e=e.parent;c.save();for(var f=0;f<d.length;f++){var g=d[f],h=g.getTransform().getMatrix();c.transform(h[0],h[1],h[2],h[3],h[4],h[5]),g.getAbsoluteAlpha()!==1&&(c.globalAlpha=g.getAbsoluteAlpha())}this.tempLayer=a,this.drawFunc.call(this),c.restore()}},_isPointInPath:function(a){var b=this.getStage(),c=b.pathLayer,d=c.getContext();return this._draw(c),d.isPointInPath(a.x,a.y)}},Kinetic.GlobalObject.extend(Kinetic.Shape,Kinetic.Node),Kinetic.Rect=function(a){a.drawFunc=function(){var a=this.getContext();a.beginPath(),this.applyLineJoin(),a.rect(0,0,this.width,this.height),a.closePath(),this.fillStroke()},Kinetic.Shape.apply(this,[a])},Kinetic.Rect.prototype={setWidth:function(a){this.width=a},getWidth:function(){return this.width},setHeight:function(a){this.height=a},getHeight:function(){return this.height},setSize:function(a,b){this.width=a,this.height=b},getSize:function(){return{width:this.width,height:this.height}}},Kinetic.GlobalObject.extend(Kinetic.Rect,Kinetic.Shape),Kinetic.Circle=function(a){a.drawFunc=function(){var a=this.getCanvas(),b=this.getContext();b.beginPath(),this.applyLineJoin(),b.arc(0,0,this.radius,0,Math.PI*2,!0),b.closePath(),this.fillStroke()},Kinetic.Shape.apply(this,[a])},Kinetic.Circle.prototype={setRadius:function(a){this.radius=a},getRadius:function(){return this.radius}},Kinetic.GlobalObject.extend(Kinetic.Circle,Kinetic.Shape),Kinetic.Image=function(a){a.width===undefined&&(a.width=a.image.width),a.height===undefined&&(a.height=a.image.height),a.drawFunc=function(){var a=this.getCanvas(),b=this.getContext();b.beginPath(),this.applyLineJoin(),b.rect(0,0,this.width,this.height),b.closePath(),this.fillStroke(),b.drawImage(this.image,0,0,this.width,this.height)},Kinetic.Shape.apply(this,[a])},Kinetic.Image.prototype={setImage:function(a){this.image=a},getImage:function(){return this.image},setWidth:function(a){this.width=a},getWidth:function(){return this.width},setHeight:function(a){this.height=a},getHeight:function(){return this.height},setSize:function(a,b){this.width=a,this.height=b},getSize:function(){return{width:this.width,height:this.height}}},Kinetic.GlobalObject.extend(Kinetic.Image,Kinetic.Shape),Kinetic.Polygon=function(a){a.drawFunc=function(){var a=this.getContext();a.beginPath(),this.applyLineJoin(),a.moveTo(this.points[0].x,this.points[0].y);for(var b=1;b<this.points.length;b++)a.lineTo(this.points[b].x,this.points[b].y);a.closePath(),this.fillStroke()},Kinetic.Shape.apply(this,[a])},Kinetic.Polygon.prototype={setPoints:function(a){this.points=a},getPoints:function(){return this.points}},Kinetic.GlobalObject.extend(Kinetic.Polygon,Kinetic.Shape),Kinetic.RegularPolygon=function(a){a.drawFunc=function(){var a=this.getContext();a.beginPath(),this.applyLineJoin(),a.moveTo(0,0-this.radius);for(var b=1;b<this.sides;b++){var c=this.radius*Math.sin(b*2*Math.PI/this.sides),d=-1*this.radius*Math.cos(b*2*Math.PI/this.sides);a.lineTo(c,d)}a.closePath(),this.fillStroke()},Kinetic.Shape.apply(this,[a])},Kinetic.RegularPolygon.prototype={setPoints:function(a){this.points=a},getPoints:function(){return this.points},setRadius:function(a){this.radius=a},getRadius:function(){return this.radius},setSides:function(a){this.sides=a},getSides:function(){return this.sides}},Kinetic.GlobalObject.extend(Kinetic.RegularPolygon,Kinetic.Shape),Kinetic.Star=function(a){a.drawFunc=function(){var a=this.getContext();a.beginPath(),this.applyLineJoin(),a.moveTo(0,0-this.outerRadius);for(var b=1;b<this.points*2;b++){var c=b%2===0?this.outerRadius:this.innerRadius,d=c*Math.sin(b*Math.PI/this.points),e=-1*c*Math.cos(b*Math.PI/this.points);a.lineTo(d,e)}a.closePath(),this.fillStroke()},Kinetic.Shape.apply(this,[a])},Kinetic.Star.prototype={setPoints:function(a){this.points=a},getPoints:function(){return this.points},setOuterRadius:function(a){this.outerRadius=a},getOuterRadius:function(){return this.outerRadius},setInnerRadius:function(a){this.innerRadius=a},getInnerRadius:function(){return this.innerRadius}},Kinetic.GlobalObject.extend(Kinetic.Star,Kinetic.Shape),Kinetic.Text=function(a){if(a.textStroke!==undefined||a.textStrokeWidth!==undefined)a.textStroke===undefined?a.textStroke="black":a.textStrokeWidth===undefined&&(a.textStrokeWidth=2);a.align===undefined&&(a.align="left"),a.verticalAlign===undefined&&(a.verticalAlign="top"),a.padding===undefined&&(a.padding=0),a.fontStyle===undefined&&(a.fontStyle="normal"),a.drawFunc=function(){var a=this.getContext();a.font=this.fontStyle+" "+this.fontSize+"pt "+this.fontFamily,a.textBaseline="middle";var b=this.getTextHeight(),c=this.getTextWidth(),d=this.padding,e=0,f=0;switch(this.align){case"center":e=c/-2-d;break;case"right":e=-1*c-d}switch(this.verticalAlign){case"middle":f=b/-2-d;break;case"bottom":f=-1*b-d}a.save(),a.beginPath(),this.applyLineJoin(),a.rect(e,f,c+d*2,b+d*2),a.closePath(),this.fillStroke(),a.restore();var g=d+e,h=b/2+d+f;this.textFill!==undefined&&(a.fillStyle=this.textFill,a.fillText(this.text,g,h));if(this.textStroke!==undefined||this.textStrokeWidth!==undefined)this.textStroke===undefined?this.textStroke="black":this.textStrokeWidth===undefined&&(this.textStrokeWidth=2),a.lineWidth=this.textStrokeWidth,a.strokeStyle=this.textStroke,a.strokeText(this.text,g,h)},Kinetic.Shape.apply(this,[a])},Kinetic.Text.prototype={setFontFamily:function(a){this.fontFamily=a},getFontFamily:function(){return this.fontFamily},setFontSize:function(a){this.fontSize=a},getFontSize:function(){return this.fontSize},setFontStyle:function(a){this.fontStyle=a},getFontStyle:function(){return this.fontStyle},setTextFill:function(a){this.textFill=a},getTextFill:function(){return this.textFill},setTextStroke:function(a){this.textStroke=a},getTextStroke:function(){return this.textStroke},setTextStrokeWidth:function(a){this.textStrokeWidth=a},getTextStrokeWidth:function(){return this.textStrokeWidth},setPadding:function(a){this.padding=a},getPadding:function(){return this.padding},setAlign:function(a){this.align=a},getAlign:function(){return this.align},setVerticalAlign:function(a){this.verticalAlign=a},getVerticalAlign:function(){return this.verticalAlign},setText:function(a){this.text=a},getText:function(){return this.text},getTextWidth:function(){return this.getTextSize().width},getTextHeight:function(){return this.getTextSize().height},getTextSize:function(){var a=this.getContext();a.save(),a.font=this.fontStyle+" "+this.fontSize+"pt "+this.fontFamily;var b=a.measureText(this.text);return a.restore(),{width:b.width,height:parseInt(this.fontSize,10)}}},Kinetic.GlobalObject.extend(Kinetic.Text,Kinetic.Shape),Kinetic.Transform=function(){this.m=[1,0,0,1,0,0]},Kinetic.Transform.prototype={translate:function(a,b){this.m[4]+=this.m[0]*a+this.m[2]*b,this.m[5]+=this.m[1]*a+this.m[3]*b},scale:function(a,b){this.m[0]*=a,this.m[1]*=a,this.m[2]*=b,this.m[3]*=b},rotate:function(a){var b=Math.cos(a),c=Math.sin(a),d=this.m[0]*b+this.m[2]*c,e=this.m[1]*b+this.m[3]*c,f=this.m[0]*-c+this.m[2]*b,g=this.m[1]*-c+this.m[3]*b;this.m[0]=d,this.m[1]=e,this.m[2]=f,this.m[3]=g},getTranslation:function(){return{x:this.m[4],y:this.m[5]}},multiply:function(a){var b=this.m[0]*a.m[0]+this.m[2]*a.m[1],c=this.m[1]*a.m[0]+this.m[3]*a.m[1],d=this.m[0]*a.m[2]+this.m[2]*a.m[3],e=this.m[1]*a.m[2]+this.m[3]*a.m[3],f=this.m[0]*a.m[4]+this.m[2]*a.m[5]+this.m[4],g=this.m[1]*a.m[4]+this.m[3]*a.m[5]+this.m[5];this.m[0]=b,this.m[1]=c,this.m[2]=d,this.m[3]=e,this.m[4]=f,this.m[5]=g},invert:function(){var a=1/(this.m[0]*this.m[3]-this.m[1]*this.m[2]),b=this.m[3]*a,c=-this.m[1]*a,d=-this.m[2]*a,e=this.m[0]*a,f=a*(this.m[2]*this.m[5]-this.m[3]*this.m[4]),g=a*(this.m[1]*this.m[4]-this.m[0]*this.m[5]);this.m[0]=b,this.m[1]=c,this.m[2]=d,this.m[3]=e,this.m[4]=f,this.m[5]=g},getMatrix:function(){return this.m}};