Bumped to version 1.0.0-rc.7

Look at change log for full overview of changes.

20 files changed, 259 insertions, 72 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3bb4bed..c8f202f 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+# 1.0.0-rc.7 (11/06/2014)
+
+- calling `after()` when calling `stop(true)` (fulfill flag) [thanks @vird]
+- added `classes()`, `hasClass()`, `addClass()`, `removeClass()` and `toggleClass()` [thanks @pklingem]
+- fixed a bug where `Element#style()` would not save empty values in IE11 [thanks @Shtong]
+- fixed `SVG is not defined error` [thanks @anvaka]
+- fixed a bug in `move()`on text elements with a string based value
+- binding events listeners to svg.js instance
+- text element fires `rebuild` event whenever the `rebuild()` method is called
+- fix for `text()` method on text element when acting as getter [thanks @Lochemage]
+- fix in `style()` method with a css string [thanks @TobiasHeckel]
+
 # 1.0.0-rc.6 (03/03/2014)
 
 - fine-tuned text element positioning
@@ -35,7 +47,7 @@
 - fix in `animate('=').to()`
 - added `pointAt()` method to `SVG.Path`, wrapping the native `getPointAtLength()`
 - moved `length()` method to sugar module
-- fix for arcs in patharray `toString()` method
+- fix for arcs in patharray `toString()` method [thanks @dotnetCarpenter]
 
 # v1.0rc3 (03/02/2014)
 
diff --git a/README.md b/README.md
index 10bc38c..1173910 100755
--- a/README.md
+++ b/README.md
@@ -520,6 +520,16 @@ tspan.animate('2s').fill('#f06')
 
 __`returns`: `itself`__
 
+### rebuild()
+This is an internal callback that probably never needs to be called manually. Basically it rebuilds the text element whenerver `font-size` and `x` attributes or the `leading()` of the text element are modified. This method also acts a setter to enable or disable rebuilding:
+
+```javascript
+text.rebuild(false) //-> disables rebuilding
+text.rebuild(true)  //-> enables rebuilding and instantaneously rebuilds the text element
+```
+
+__`returns`: `itself`__
+
 ### clear()
 Clear all the contents of the called text element:
 
@@ -532,6 +542,14 @@ __`returns`: `itself`__
 ### lines
 All added tspans are stored in the `lines` reference, which is an instance of `SVG.Set`.
 
+### events
+The text element has one event. It is fired every time the `rebuild()` method is called:
+
+```javascript
+text.on('rebuild', function() {
+  // whatever you need to do after rebuilding
+})
+```
 
 ## TSpan
 The tspan elements are only available inside text elements or inside other tspan elements. In svg.js they have a class of their own:
@@ -1012,6 +1030,50 @@ rect.style('cursor', null)
 
 `setter`__`returns`: `itself`__
 
+### classes()
+Fetches an array of css classes on the node:
+
+```javascript
+rect.classes()
+```
+
+`getter`__`returns`: `array`__
+
+### hasClass()
+Test the presence of a given css class:
+
+```javascript
+rect.hasClass('purple-rain')
+```
+
+`getter`__`returns`: `boolean`__
+
+### addClass()
+Adds a given css class:
+
+```javascript
+rect.addClass('pink-flower')
+```
+
+`setter`__`returns`: `itself`__
+
+### removeClass()
+Removes a given css class:
+
+```javascript
+rect.removeClass('pink-flower')
+```
+
+`setter`__`returns`: `itself`__
+
+### toggleClass()
+Toggles a given css class:
+
+```javascript
+rect.toggleClass('pink-flower')
+```
+
+`setter`__`returns`: `itself`__
 
 ### move()
 Move the element to a given `x` and `y` position by its upper left corner:
@@ -1293,7 +1355,7 @@ __`returns`: `element`__
 
 ## Geometry
 
-### viewBox()
+### viewbox()
 
 The `viewBox` attribute of an `<svg>` element can be managed with the `viewbox()` method. When supplied with four arguments it will act as a setter:
 
@@ -2362,12 +2424,11 @@ All available evenets are: `click`, `dblclick`, `mousedown`, `mouseup`, `mouseov
 __`returns`: `itself`__
 
 ### Event listeners
-
 You can also bind event listeners to elements:
 
 ```javascript
 var click = function() {
-  rect.fill({ color: '#f06' })
+  this.fill({ color: '#f06' })
 }
 
 rect.on('click', click)
@@ -2375,8 +2436,6 @@ rect.on('click', click)
 
 __`returns`: `itself`__
 
-Note that the context of event listeners is not the same as events, which are applied directly to the element. Therefore `this` will not refer to the element when using event listeners.
-
 Unbinding events is just as easy:
 
 ```javascript
@@ -2397,6 +2456,32 @@ Obviously unbinding is practically the same:
 SVG.off(window, 'click', click)
 ```
 
+### Custom events
+You can even create your own events.
+
+The only thing you need to do is register your own event:
+
+```javascript
+SVG.registerEvent('my:event')
+```
+
+Next you can add an event listener for your newly created event:
+```javascript
+rect.on('my:event', function() {
+  alert('ta-da!')
+})
+```
+
+Now you are ready to fire the event whenever you need:
+
+```javascript
+function whenSomethingHappens() {
+  rect.fire('my:event') 
+}
+```
+
+_Important: always make sure you namespace your event to avoid conflicts. Preferably use something very specific. So `wicked:event` for example would be better than something generic like `svg:event`._
+
 ## Numbers
 
 Numbers in svg.js have a dedicated number class to be able to process string values. Creating a new number is simple:
@@ -2888,6 +2973,21 @@ Here are a few nice plugins that are available for svg.js:
 [svg.topath.js](https://github.com/wout/svg.topath.js) to convert any other shape to a path.
 
 
+## Contributing
+All contributions are very welcome but please make sure you:
+
+- maintain the coding style
+  - _indentation_ of 2 spaces
+  - no tailing _semicolons_
+  - use one line _comments_ to describe any additions
+  - look around and you'll know what to do
+- write at least on spec example per implementation or modification
+
+Before tunning the specs you will need to build the library.
+
+Be aware that pull requests without specs will be declined.
+
+
 ## Building
 Starting out with the default distribution of svg.js is good. Although you might want to remove some modules to keep the size at minimum.
 
diff --git a/Rakefile b/Rakefile
index 8ff1eac..9a38570 100755
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,4 @@
-SVGJS_VERSION = '1.0.0-rc.6'
+SVGJS_VERSION = '1.0.0-rc.7'
 
 # all available modules in the correct loading order
 MODULES = %w[ svg inventor regex default color array pointarray patharray number viewbox bbox rbox element parent container fx relative event defs group arrange mask clip gradient pattern doc shape use rect ellipse line poly path image text textpath nested hyperlink sugar set data memory loader helpers ]
diff --git a/bower.json b/bower.json
index 62ff0d8..a28bcc7 100755
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "svg.js",
-  "version": "1.0.0-rc.6",
+  "version": "1.0.0-rc.7",
   "homepage": "http://svgjs.com/",
   "authors": [
     "Wout Fierens <wout@impinc.co.uk>"
diff --git a/component.json b/component.json
index 82a55df..1b7059a 100755
--- a/component.json
+++ b/component.json
@@ -2,7 +2,7 @@
   "name": "svg.js",
   "repo": "wout/svg.js",
   "description": "A lightweight library for manipulating and animating SVG",
-  "version": "1.0.0-rc.6",
+  "version": "1.0.0-rc.7",
   "keywords": ["svg"],
   "author": "Wout Fierens <wout@impinc.co.uk>",
   "main": "dist/svg.js",
diff --git a/dist/svg.js b/dist/svg.js
index c8eed90..ac8c78b 100755
--- a/dist/svg.js
+++ b/dist/svg.js
@@ -1,7 +1,7 @@
-/* svg.js 1.0.0-rc.6-8-g63d8846 - svg inventor regex default color array pointarray patharray number viewbox bbox rbox element parent container fx relative event defs group arrange mask clip gradient pattern doc shape use rect ellipse line poly path image text textpath nested hyperlink sugar set data memory loader helpers - svgjs.com/license */
+/* svg.js 1.0.0-rc.7-3-g791f436 - svg inventor regex default color array pointarray patharray number viewbox bbox rbox element parent container fx relative event defs group arrange mask clip gradient pattern doc shape use rect ellipse line poly path image text textpath nested hyperlink sugar set data memory loader helpers - svgjs.com/license */
 ;(function() {
 
-  this.SVG = function(element) {
+  var SVG = this.SVG = function(element) {
     if (SVG.supported) {
       element = new SVG.Doc(element)
   
@@ -66,7 +66,7 @@
   SVG.prepare = function(element) {
     /* select document body and create invisible svg element */
     var body = document.getElementsByTagName('body')[0]
-      , draw = (body ? new SVG.Doc(body) : element.nested()).size(2, 2)
+      , draw = (body ? new SVG.Doc(body) : element.nested()).size(2, 0)
       , path = SVG.create('path')
   
     /* insert parsers */
@@ -89,6 +89,7 @@
   
   if (!SVG.supported) return false
 
+
   SVG.invent = function(config) {
   	/* create element initializer */
   	var initializer = typeof config.create == 'function' ?
@@ -143,6 +144,9 @@
     /* test for image url */
   , isImage:      /\.(jpg|jpeg|png|gif)(\?[^=]+.*)?/i
     
+    /* test for namespaced event */
+  , isEvent:      /^[\w]+:[\w]+$/
+  
   }
 
   SVG.defaults = {
@@ -467,7 +471,7 @@
       /* recalculate position of all points according to new size */
       for (i = this.value.length - 1; i >= 0; i--) {
         this.value[i][0] = ((this.value[i][0] - box.x) * width)  / box.width  + box.x
-        this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.x
+        this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.y
       }
   
       return this
@@ -1269,8 +1273,8 @@
             s = s.split(';')
   
             /* apply every definition individually */
-            for (v = 0; v < s.length; v++) {
-              v = s[v].split(':')
+            for (var i = 0; i < s.length; i++) {
+              v = s[i].split(':')
               this.style(v[0].replace(/\s+/g, ''), v[1])
             }
           } else {
@@ -1879,8 +1883,12 @@
     , stop: function(fulfill) {
         /* fulfill animation */
         if (fulfill === true) {
+  
           this.animate(0)
   
+          if (this._after)
+            this._after.apply(this.target, [this])
+  
         } else {
           /* stop current animation */
           clearTimeout(this.timeout)
@@ -1965,6 +1973,7 @@
     }
   })
 
+
   SVG.extend(SVG.Element, SVG.FX, {
     // Relative move over x axis
     dx: function(x) {
@@ -2009,20 +2018,23 @@
     
   })
   
+  // Initialize events stack
+  SVG.events = {}
+  
+  // Event constructor
+  SVG.registerEvent = function(event) {
+    if (!SVG.events[event])
+      SVG.events[event] = new Event(event)
+  }
+  
   // Add event binder in the SVG namespace
   SVG.on = function(node, event, listener) {
-    if (node.addEventListener)
-      node.addEventListener(event, listener, false)
-    else
-      node.attachEvent('on' + event, listener)
+    node.addEventListener(event, listener.bind(node.instance || node), false)
   }
   
   // Add event unbinder in the SVG namespace
   SVG.off = function(node, event, listener) {
-    if (node.removeEventListener)
-      node.removeEventListener(event, listener, false)
-    else
-      node.detachEvent('on' + event, listener)
+    node.removeEventListener(event, listener.bind(node.instance || node), false)
   }
   
   //
@@ -2039,6 +2051,12 @@
       
       return this
     }
+    // Fire given event
+  , fire: function(event) {
+      this.node.dispatchEvent(SVG.events[event])
+  
+      return this
+    }
   })
 
   SVG.Defs = SVG.invent({
@@ -2918,13 +2936,14 @@
       }
       // Move over y-axis
     , y: function(y) {
-        var o = this.attr('y') - this.bbox().y
+        var oy = this.attr('y')
+          , o  = typeof oy === 'number' ? oy - this.bbox().y : 0
   
         /* act as getter */
         if (y == null)
-          return this.attr('y') - o
+          return typeof oy === 'number' ? oy - o : oy
   
-        return this.attr('y', y + o)
+        return this.attr('y', typeof y === 'number' ? y + o : y)
       }
       // Move center over x-axis
     , cx: function(x) {
@@ -2937,7 +2956,7 @@
       // Set the text content
     , text: function(text) {
         /* act as getter */
-        if (!text) return this.content
+        if (typeof text === 'undefined') return this.content
         
         /* remove existing content */
         this.clear().build(true)
@@ -2948,7 +2967,7 @@
   
         } else {
           /* store text and make sure text is not blank */
-          text = (this.content = (SVG.regex.isBlank.test(text) ? 'text' : text)).split('\n')
+          text = (this.content = text).split('\n')
           
           /* build new lines */
           for (var i = 0, il = text.length; i < il; i++)
@@ -2975,14 +2994,14 @@
       }
       // Rebuild appearance type
     , rebuild: function(rebuild) {
-        var self = this
-  
         /* store new rebuild flag if given */
         if (typeof rebuild == 'boolean')
           this._rebuild = rebuild
   
         /* define position of all lines */
         if (this._rebuild) {
+          var self = this
+          
           this.lines.each(function() {
             if (this.newLined) {
               if (!this.textPath)
@@ -2990,6 +3009,8 @@
               this.attr('dy', self._leading * new SVG.Number(self.attr('font-size'))) 
             }
           })
+  
+          this.fire('rebuild')
         }
   
         return this
@@ -3103,6 +3124,8 @@
     }
   })
   
+  // Register rebuild event
+  SVG.registerEvent('rebuild')
 
 
   SVG.TextPath = SVG.invent({
diff --git a/dist/svg.min.js b/dist/svg.min.js
index e742a1e..02df097 100755
--- a/dist/svg.min.js
+++ b/dist/svg.min.js
@@ -1,2 +1,2 @@
-(function(){function t(t){return t.toLowerCase().replace(/-(.)/g,function(t,e){return e.toUpperCase()})}function e(t){return 4==t.length?["#",t.substring(1,2),t.substring(1,2),t.substring(2,3),t.substring(2,3),t.substring(3,4),t.substring(3,4)].join(""):t}function i(t){var e=t.toString(16);return 1==e.length?"0"+e:e}function n(t,e,i){return(null==e||null==i)&&(null==i?i=t.height/t.width*e:null==e&&(e=t.width/t.height*i)),{width:e,height:i}}function r(t,e){return"number"==typeof t.from?t.from+(t.to-t.from)*e:t instanceof SVG.Color||t instanceof SVG.Number?t.at(e):1>e?t.from:t.to}function s(t){for(var e=0,i=t.length,n="";i>e;e++)n+=t[e][0],null!=t[e][1]&&(n+=t[e][1],null!=t[e][2]&&(n+=" ",n+=t[e][2],null!=t[e][3]&&(n+=" ",n+=t[e][3],n+=" ",n+=t[e][4],null!=t[e][5]&&(n+=" ",n+=t[e][5],n+=" ",n+=t[e][6],null!=t[e][7]&&(n+=" ",n+=t[e][7])))));return n+" "}function h(t){t.x2=t.x+t.width,t.y2=t.y+t.height,t.cx=t.x+t.width/2,t.cy=t.y+t.height/2}function o(t){if(t.matrix){var e=t.matrix.replace(/\s/g,"").split(",");6==e.length&&(t.a=parseFloat(e[0]),t.b=parseFloat(e[1]),t.c=parseFloat(e[2]),t.d=parseFloat(e[3]),t.e=parseFloat(e[4]),t.f=parseFloat(e[5]))}return t}if(this.SVG=function(t){return SVG.supported?(t=new SVG.Doc(t),SVG.parser||SVG.prepare(t),t):void 0},SVG.ns="http://www.w3.org/2000/svg",SVG.xmlns="http://www.w3.org/2000/xmlns/",SVG.xlink="http://www.w3.org/1999/xlink",SVG.did=1e3,SVG.eid=function(t){return"Svgjs"+t.charAt(0).toUpperCase()+t.slice(1)+SVG.did++},SVG.create=function(t){var e=document.createElementNS(this.ns,t);return e.setAttribute("id",this.eid(t)),e},SVG.extend=function(){var t,e,i,n;for(t=[].slice.call(arguments),e=t.pop(),n=t.length-1;n>=0;n--)if(t[n])for(i in e)t[n].prototype[i]=e[i];SVG.Set&&SVG.Set.inherit&&SVG.Set.inherit()},SVG.get=function(t){var e=document.getElementById(t);return e?e.instance:void 0},SVG.prepare=function(t){var e=document.getElementsByTagName("body")[0],i=(e?new SVG.Doc(e):t.nested()).size(2,2),n=SVG.create("path");i.node.appendChild(n),SVG.parser={body:e||t.parent,draw:i.style("opacity:0;position:fixed;left:100%;top:100%;overflow:hidden"),poly:i.polyline().node,path:n}},SVG.supported=function(){return!!document.createElementNS&&!!document.createElementNS(SVG.ns,"svg").createSVGRect}(),!SVG.supported)return!1;SVG.invent=function(t){var e="function"==typeof t.create?t.create:function(){this.constructor.call(this,SVG.create(t.create))};return t.inherit&&(e.prototype=new t.inherit),t.extend&&SVG.extend(e,t.extend),t.construct&&SVG.extend(t.parent||SVG.Container,t.construct),e},SVG.regex={unit:/^(-?[\d\.]+)([a-z%]{0,2})$/,hex:/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i,rgb:/rgb\((\d+),(\d+),(\d+)\)/,isHex:/^#[a-f0-9]{3,6}$/i,isRgb:/^rgb\(/,isCss:/[^:]+:[^;]+;?/,isBlank:/^(\s+)?$/,isNumber:/^-?[\d\.]+$/,isPercent:/^-?[\d\.]+%$/,isImage:/\.(jpg|jpeg|png|gif)(\?[^=]+.*)?/i},SVG.defaults={matrix:"1 0 0 1 0 0",attrs:{"fill-opacity":1,"stroke-opacity":1,"stroke-width":0,"stroke-linejoin":"miter","stroke-linecap":"butt",fill:"#000000",stroke:"#000000",opacity:1,x:0,y:0,cx:0,cy:0,width:0,height:0,r:0,rx:0,ry:0,offset:0,"stop-opacity":1,"stop-color":"#000000","font-size":16,"font-family":"Helvetica, Arial, sans-serif","text-anchor":"start"},trans:function(){return{x:0,y:0,scaleX:1,scaleY:1,rotation:0,skewX:0,skewY:0,matrix:this.matrix,a:1,b:0,c:0,d:1,e:0,f:0}}},SVG.Color=function(t){var i;this.r=0,this.g=0,this.b=0,"string"==typeof t?SVG.regex.isRgb.test(t)?(i=SVG.regex.rgb.exec(t.replace(/\s/g,"")),this.r=parseInt(i[1]),this.g=parseInt(i[2]),this.b=parseInt(i[3])):SVG.regex.isHex.test(t)&&(i=SVG.regex.hex.exec(e(t)),this.r=parseInt(i[1],16),this.g=parseInt(i[2],16),this.b=parseInt(i[3],16)):"object"==typeof t&&(this.r=t.r,this.g=t.g,this.b=t.b)},SVG.extend(SVG.Color,{toString:function(){return this.toHex()},toHex:function(){return"#"+i(this.r)+i(this.g)+i(this.b)},toRgb:function(){return"rgb("+[this.r,this.g,this.b].join()+")"},brightness:function(){return this.r/255*.3+this.g/255*.59+this.b/255*.11},morph:function(t){return this.destination=new SVG.Color(t),this},at:function(t){return this.destination?(t=0>t?0:t>1?1:t,new SVG.Color({r:~~(this.r+(this.destination.r-this.r)*t),g:~~(this.g+(this.destination.g-this.g)*t),b:~~(this.b+(this.destination.b-this.b)*t)})):this}}),SVG.Color.test=function(t){return t+="",SVG.regex.isHex.test(t)||SVG.regex.isRgb.test(t)},SVG.Color.isRgb=function(t){return t&&"number"==typeof t.r&&"number"==typeof t.g&&"number"==typeof t.b},SVG.Color.isColor=function(t){return SVG.Color.isRgb(t)||SVG.Color.test(t)},SVG.Array=function(t,e){t=(t||[]).valueOf(),0==t.length&&e&&(t=e.valueOf()),this.value=this.parse(t)},SVG.extend(SVG.Array,{morph:function(t){if(this.destination=this.parse(t),this.value.length!=this.destination.length){for(var e=this.value[this.value.length-1],i=this.destination[this.destination.length-1];this.value.length>this.destination.length;)this.destination.push(i);for(;this.value.length<this.destination.length;)this.value.push(e)}return this},settle:function(){for(var t=0,e=this.value.length,i=[];e>t;t++)-1==i.indexOf(this.value[t])&&i.push(this.value[t]);return this.value=i},at:function(t){if(!this.destination)return this;for(var e=0,i=this.value.length,n=[];i>e;e++)n.push(this.value[e]+(this.destination[e]-this.value[e])*t);return new SVG.Array(n)},toString:function(){return this.value.join(" ")},valueOf:function(){return this.value},parse:function(t){return t=t.valueOf(),Array.isArray(t)?t:this.split(t)},split:function(t){return t.replace(/\s+/g," ").replace(/^\s+|\s+$/g,"").split(" ")},reverse:function(){return this.value.reverse(),this}}),SVG.PointArray=function(){this.constructor.apply(this,arguments)},SVG.PointArray.prototype=new SVG.Array,SVG.extend(SVG.PointArray,{toString:function(){for(var t=0,e=this.value.length,i=[];e>t;t++)i.push(this.value[t].join(","));return i.join(" ")},at:function(t){if(!this.destination)return this;for(var e=0,i=this.value.length,n=[];i>e;e++)n.push([this.value[e][0]+(this.destination[e][0]-this.value[e][0])*t,this.value[e][1]+(this.destination[e][1]-this.value[e][1])*t]);return new SVG.PointArray(n)},parse:function(t){if(t=t.valueOf(),Array.isArray(t))return t;t=this.split(t);for(var e,i=0,n=t.length,r=[];n>i;i++)e=t[i].split(","),r.push([parseFloat(e[0]),parseFloat(e[1])]);return r},move:function(t,e){var i=this.bbox();if(t-=i.x,e-=i.y,!isNaN(t)&&!isNaN(e))for(var n=this.value.length-1;n>=0;n--)this.value[n]=[this.value[n][0]+t,this.value[n][1]+e];return this},size:function(t,e){var i,n=this.bbox();for(i=this.value.length-1;i>=0;i--)this.value[i][0]=(this.value[i][0]-n.x)*t/n.width+n.x,this.value[i][1]=(this.value[i][1]-n.y)*e/n.height+n.x;return this},bbox:function(){return 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t?document.getElementById(t):t,this.constructor.call(this,"svg"==this.parent.nodeName?this.parent:a.create("svg")),this.attr({xmlns:a.ns,version:"1.1",width:"100%",height:"100%"}).attr("xmlns:xlink",a.xlink,a.xmlns),this._defs=new a.Defs,this._defs.parent=this,this.node.appendChild(this._defs.node),this.doSpof=!1,this.parent!=this.node&&this.stage()},inherit:a.Container,extend:{stage:function(){var t=this;return this.parent.appendChild(this.node),t.spof(),a.on(window,"resize",function(){t.spof()}),this},defs:function(){return this._defs},spof:function(){if(this.doSpof){var t=this.node.getScreenCTM();t&&this.style("left",-t.e%1+"px").style("top",-t.f%1+"px")}return this},fixSubPixelOffset:function(){return this.doSpof=!0,this}}}),a.Shape=a.invent({create:function(t){this.constructor.call(this,t)},inherit:a.Element}),a.Use=a.invent({create:"use",inherit:a.Shape,extend:{element:function(t){return this.target=t,this.attr("href","#"+t,a.xlink)}},construct:{use:function(t){return 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this.ellipse(t,t)},ellipse:function(t,e){return this.put(new a.Ellipse).size(t,e).move(0,0)}}}),a.Line=a.invent({create:"line",inherit:a.Shape,extend:{x:function(t){var e=this.bbox();return null==t?e.x:this.attr({x1:this.attr("x1")-e.x+t,x2:this.attr("x2")-e.x+t})},y:function(t){var e=this.bbox();return null==t?e.y:this.attr({y1:this.attr("y1")-e.y+t,y2:this.attr("y2")-e.y+t})},cx:function(t){var e=this.bbox().width/2;return null==t?this.x()+e:this.x(t-e)},cy:function(t){var e=this.bbox().height/2;return null==t?this.y()+e:this.y(t-e)},width:function(t){var e=this.bbox();return null==t?e.width:this.attr(this.attr("x1")<this.attr("x2")?"x2":"x1",e.x+t)},height:function(t){var e=this.bbox();return null==t?e.height:this.attr(this.attr("y1")<this.attr("y2")?"y2":"y1",e.y+t)},size:function(t,e){var i=n(this.bbox(),t,e);return this.width(i.width).height(i.height)},plot:function(t,e,i,n){return this.attr({x1:t,y1:e,x2:i,y2:n})}},construct:{line:function(t,e,i,n){return this.put((new a.Line).plot(t,e,i,n))}}}),a.Polyline=a.invent({create:"polyline",inherit:a.Shape,construct:{polyline:function(t){return this.put(new a.Polyline).plot(t)
+}}}),a.Polygon=a.invent({create:"polygon",inherit:a.Shape,construct:{polygon:function(t){return this.put(new a.Polygon).plot(t)}}}),a.extend(a.Polyline,a.Polygon,{morphArray:a.PointArray,plot:function(t){return this.attr("points",this.array=new a.PointArray(t,[[0,0]]))},move:function(t,e){return this.attr("points",this.array.move(t,e))},x:function(t){return null==t?this.bbox().x:this.move(t,this.bbox().y)},y:function(t){return null==t?this.bbox().y:this.move(this.bbox().x,t)},width:function(t){var e=this.bbox();return null==t?e.width:this.size(t,e.height)},height:function(t){var e=this.bbox();return null==t?e.height:this.size(e.width,t)},size:function(t,e){var i=n(this.bbox(),t,e);return this.attr("points",this.array.size(i.width,i.height))}}),a.Path=a.invent({create:"path",inherit:a.Shape,extend:{plot:function(t){return this.attr("d",this.array=new a.PathArray(t,[["M",0,0]]))},move:function(t,e){return this.attr("d",this.array.move(t,e))},x:function(t){return null==t?this.bbox().x:this.move(t,this.bbox().y)},y:function(t){return null==t?this.bbox().y:this.move(this.bbox().x,t)},size:function(t,e){var i=n(this.bbox(),t,e);return this.attr("d",this.array.size(i.width,i.height))},width:function(t){return null==t?this.bbox().width:this.size(t,this.bbox().height)},height:function(t){return null==t?this.bbox().height:this.size(this.bbox().width,t)}},construct:{path:function(t){return this.put(new a.Path).plot(t)}}}),a.Image=a.invent({create:"image",inherit:a.Shape,extend:{load:function(t){if(!t)return this;var e=this,i=document.createElement("img");return i.onload=function(){var n=e.doc(a.Pattern);0==e.width()&&0==e.height()&&e.size(i.width,i.height),n&&0==n.width()&&0==n.height()&&n.size(e.width(),e.height()),"function"==typeof e._loaded&&e._loaded.call(e,{width:i.width,height:i.height,ratio:i.width/i.height,url:t})},this.attr("href",i.src=this.src=t,a.xlink)},loaded:function(t){return this._loaded=t,this}},construct:{image:function(t,e,i){return this.put(new a.Image).load(t).size(e||0,i||e||0)}}}),a.Text=a.invent({create:function(){this.constructor.call(this,a.create("text")),this._leading=new a.Number(1.3),this._rebuild=!0,this._build=!1,this.attr("font-family",a.defaults.attrs["font-family"])},inherit:a.Shape,extend:{x:function(t){return null==t?this.attr("x"):(this.textPath||this.lines.each(function(){this.newLined&&this.x(t)}),this.attr("x",t))},y:function(t){var e=this.attr("y"),i="number"==typeof e?e-this.bbox().y:0;return null==t?"number"==typeof e?e-i:e:this.attr("y","number"==typeof t?t+i:t)},cx:function(t){return null==t?this.bbox().cx:this.x(t-this.bbox().width/2)},cy:function(t){return null==t?this.bbox().cy:this.y(t-this.bbox().height/2)},text:function(t){if("undefined"==typeof t)return this.content;if(this.clear().build(!0),"function"==typeof t)t.call(this,this);else{t=(this.content=t).split("\n");for(var e=0,i=t.length;i>e;e++)this.tspan(t[e]).newLine()}return this.build(!1).rebuild()},size:function(t){return this.attr("font-size",t).rebuild()},leading:function(t){return null==t?this._leading:(this._leading=new a.Number(t),this.rebuild())},rebuild:function(t){if("boolean"==typeof t&&(this._rebuild=t),this._rebuild){var e=this;this.lines.each(function(){this.newLined&&(this.textPath||this.attr("x",e.attr("x")),this.attr("dy",e._leading*new a.Number(e.attr("font-size"))))}),this.fire("rebuild")}return this},build:function(t){return this._build=!!t,this}},construct:{text:function(t){return this.put(new a.Text).text(t)},plain:function(t){return this.put(new a.Text).plain(t)}}}),a.TSpan=a.invent({create:"tspan",inherit:a.Shape,extend:{text:function(t){return"function"==typeof t?t.call(this,this):this.plain(t),this},dx:function(t){return this.attr("dx",t)},dy:function(t){return this.attr("dy",t)},newLine:function(){var t=this.doc(a.Text);return this.newLined=!0,this.dy(t._leading*t.attr("font-size")).attr("x",t.x())}}}),a.extend(a.Text,a.TSpan,{plain:function(t){return this._build===!1&&this.clear(),this.node.appendChild(document.createTextNode(this.content=t)),this},tspan:function(t){var e=(this.textPath||this).node,i=new a.TSpan;return this._build===!1&&this.clear(),e.appendChild(i.node),i.parent=this,this instanceof a.Text&&this.lines.add(i),i.text(t)},clear:function(){for(var t=(this.textPath||this).node;t.hasChildNodes();)t.removeChild(t.lastChild);return this instanceof a.Text&&(delete this.lines,this.lines=new a.Set,this.content=""),this}}),a.registerEvent("rebuild"),a.TextPath=a.invent({create:"textPath",inherit:a.Element,parent:a.Text,construct:{path:function(t){for(this.textPath=new a.TextPath;this.node.hasChildNodes();)this.textPath.node.appendChild(this.node.firstChild);return this.node.appendChild(this.textPath.node),this.track=this.doc().defs().path(t),this.textPath.parent=this,this.textPath.attr("href","#"+this.track,a.xlink),this},plot:function(t){return this.track&&this.track.plot(t),this}}}),a.Nested=a.invent({create:function(){this.constructor.call(this,a.create("svg")),this.style("overflow","visible")},inherit:a.Container,construct:{nested:function(){return this.put(new a.Nested)}}}),a.A=a.invent({create:"a",inherit:a.Container,extend:{to:function(t){return this.attr("href",t,a.xlink)},show:function(t){return this.attr("show",t,a.xlink)},target:function(t){return this.attr("target",t)}},construct:{link:function(t){return this.put(new a.A).to(t)}}}),a.extend(a.Element,{linkTo:function(t){var e=new a.A;return"function"==typeof t?t.call(e,e):e.to(t),this.parent.put(e).put(this)}});var u={stroke:["color","width","opacity","linecap","linejoin","miterlimit","dasharray","dashoffset"],fill:["color","opacity","rule"],prefix:function(t,e){return"color"==e?t:t+"-"+e}};["fill","stroke"].forEach(function(t){var e,i={};i[t]=function(i){if("string"==typeof i||a.Color.isRgb(i)||i&&"function"==typeof i.fill)this.attr(t,i);else for(e=u[t].length-1;e>=0;e--)null!=i[u[t][e]]&&this.attr(u.prefix(t,u[t][e]),i[u[t][e]]);return this},a.extend(a.Element,a.FX,i)}),a.extend(a.Element,a.FX,{rotate:function(t,e,i){return this.transform({rotation:t||0,cx:e,cy:i})},skew:function(t,e){return this.transform({skewX:t||0,skewY:e||0})},scale:function(t,e){return this.transform({scaleX:t,scaleY:null==e?t:e})},translate:function(t,e){return this.transform({x:t,y:e})},matrix:function(t){return this.transform({matrix:t})},opacity:function(t){return this.attr("opacity",t)}}),a.extend(a.Rect,a.Ellipse,a.FX,{radius:function(t,e){return this.attr({rx:t,ry:e||t})}}),a.extend(a.Path,{length:function(){return this.node.getTotalLength()},pointAt:function(t){return this.node.getPointAtLength(t)}}),a.extend(a.Parent,a.Text,a.FX,{font:function(t){for(var e in t)"leading"==e?this.leading(t[e]):"anchor"==e?this.attr("text-anchor",t[e]):"size"==e||"family"==e||"weight"==e||"stretch"==e||"variant"==e||"style"==e?this.attr("font-"+e,t[e]):this.attr(e,t[e]);return this}}),a.Set=a.invent({create:function(){this.clear()},extend:{add:function(){var t,e,i=[].slice.call(arguments);for(t=0,e=i.length;e>t;t++)this.members.push(i[t]);return this},remove:function(t){var e=this.index(t);return e>-1&&this.members.splice(e,1),this},each:function(t){for(var e=0,i=this.members.length;i>e;e++)t.apply(this.members[e],[e,this.members]);return this},clear:function(){return this.members=[],this},has:function(t){return this.index(t)>=0},index:function(t){return this.members.indexOf(t)},get:function(t){return this.members[t]},valueOf:function(){return this.members},bbox:function(){var t=new a.BBox;if(0==this.members.length)return t;var e=this.members[0].rbox();return t.x=e.x,t.y=e.y,t.width=e.width,t.height=e.height,this.each(function(){t=t.merge(this.rbox())}),t}},construct:{set:function(){return new a.Set}}}),a.SetFX=a.invent({create:function(t){this.set=t}}),a.Set.inherit=function(){var t,e=[];for(var t in a.Shape.prototype)"function"==typeof a.Shape.prototype[t]&&"function"!=typeof a.Set.prototype[t]&&e.push(t);e.forEach(function(t){a.Set.prototype[t]=function(){for(var e=0,i=this.members.length;i>e;e++)this.members[e]&&"function"==typeof this.members[e][t]&&this.members[e][t].apply(this.members[e],arguments);return"animate"==t?this.fx||(this.fx=new a.SetFX(this)):this}}),e=[];for(var t in a.FX.prototype)"function"==typeof a.FX.prototype[t]&&"function"!=typeof a.SetFX.prototype[t]&&e.push(t);e.forEach(function(t){a.SetFX.prototype[t]=function(){for(var e=0,i=this.set.members.length;i>e;e++)this.set.members[e].fx[t].apply(this.set.members[e].fx,arguments);return this}})},a.extend(a.Element,{data:function(t,e,i){if("object"==typeof t)for(e in t)this.data(e,t[e]);else if(arguments.length<2)try{return JSON.parse(this.attr("data-"+t))}catch(n){return this.attr("data-"+t)}else this.attr("data-"+t,null===e?null:i===!0||"string"==typeof e||"number"==typeof e?e:JSON.stringify(e));return this}}),a.extend(a.Element,{remember:function(t,e){if("object"==typeof arguments[0])for(var e in t)this.remember(e,t[e]);else{if(1==arguments.length)return this.memory()[t];this.memory()[t]=e}return this},forget:function(){if(0==arguments.length)this._memory={};else for(var t=arguments.length-1;t>=0;t--)delete this.memory()[arguments[t]];return this},memory:function(){return this._memory||(this._memory={})}}),"function"==typeof define&&define.amd?define(function(){return a}):"undefined"!=typeof exports&&(exports.SVG=a),window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(t){window.setTimeout(t,1e3/60)}}()}).call(this);
\ No newline at end of file
diff --git a/package.json b/package.json
index 510c985..837e67e 100755
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
 , "keywords":     ["svg", "vector", "graphics", "animation"]
 , "author":       "Wout Fierens <wout@impinc.co.uk>"
 , "main":         "dist/svg.js"
-, "version":      "1.0.0-rc.6"
+, "version":      "1.0.0-rc.7"
 , "jam": {
     "include": [
       "dist/svg.js"
diff --git a/spec/index.html b/spec/index.html
index 2044a3e..78d95d8 100755
--- a/spec/index.html
+++ b/spec/index.html
@@ -29,6 +29,7 @@
 
 <!-- include spec files here... -->
 <script type="text/javascript" src="spec/svg.js"></script>
+<script type="text/javascript" src="spec/regex.js"></script>
 <script type="text/javascript" src="spec/container.js"></script>
 <script type="text/javascript" src="spec/element.js"></script>
 <script type="text/javascript" src="spec/memory.js"></script>
diff --git a/spec/spec/element.js b/spec/spec/element.js
index 064c1e8..a0c7a2a 100755
--- a/spec/spec/element.js
+++ b/spec/spec/element.js
@@ -89,13 +89,13 @@ describe('Element', function() {
   describe('style()', function() {
     it('should set the style with key and value arguments', function() {
       var rect = draw.rect(100,100).style('cursor', 'crosshair')
-      expect(stripped(rect.node.getAttribute('style'))).toBe('cursor:crosshair;')
+      expect(stripped(rect.node.style.cssText)).toBe('cursor:crosshair;')
     })
     it('should set multiple styles with an object as the first argument', function() {
       var rect = draw.rect(100,100).style({ cursor: 'help', display: 'block' })
-      expect(stripped(rect.node.getAttribute('style'))).toMatch(/cursor:help;/)
-      expect(stripped(rect.node.getAttribute('style'))).toMatch(/display:block;/)
-      expect(stripped(rect.node.getAttribute('style')).length).toBe(('display:block;cursor:help;').length)
+      expect(stripped(rect.node.style.cssText)).toMatch(/cursor:help;/)
+      expect(stripped(rect.node.style.cssText)).toMatch(/display:block;/)
+      expect(stripped(rect.node.style.cssText).length).toBe(('display:block;cursor:help;').length)
     })
     it('should get a style with a string key as the fists argument', function() {
       var rect = draw.rect(100,100).style({ cursor: 'progress', display: 'block' })
diff --git a/spec/spec/pattern.js b/spec/spec/pattern.js
index b251801..4abdadc 100755
--- a/spec/spec/pattern.js
+++ b/spec/spec/pattern.js
@@ -37,6 +37,10 @@ describe('Pattern', function() {
       rect.attr('fill', pattern)
       expect(rect.attr('fill')).toBe('url(#' + pattern.attr('id') + ')')
     })
+    it('is called when instance is passed in a fill() method', function() {
+      rect.fill(pattern)
+      expect(rect.attr('fill')).toBe('url(#' + pattern.attr('id') + ')')
+    })
   })
 
   describe('update()', function() {
diff --git a/spec/spec/regex.js b/spec/spec/regex.js
new file mode 100644
index 0000000..f64991a
--- /dev/null
+++ b/spec/spec/regex.js
@@ -0,0 +1,27 @@
+describe('Regex', function() {
+
+  describe('unit', function() {
+    it('is true with a positive unit value', function() {
+      expect(SVG.regex.unit.test('10%')).toBeTruthy()
+    })
+    it('is true with a negative unit value', function() {
+      expect(SVG.regex.unit.test('-11%')).toBeTruthy()
+    })
+    it('is false with a positive unit value', function() {
+      expect(SVG.regex.unit.test('NotAUnit')).toBeFalsy()
+    })
+  })
+
+  describe('isEvent', function() {
+    it('is true with a namespaced and lowercase name', function() {
+      expect(SVG.regex.isEvent.test('my:event')).toBeTruthy()
+    })
+    it('is true with a namespaced and camelCase name', function() {
+      expect(SVG.regex.isEvent.test('mt:fabulousEvent')).toBeTruthy()
+    })
+    it('is false without a namespace', function() {
+      expect(SVG.regex.isEvent.test('idontlinkenamespaces')).toBeFalsy()
+    })
+  })
+
+})
\ No newline at end of file
diff --git a/spec/spec/svg.js b/spec/spec/svg.js
index 75f8a6d..843bb89 100755
--- a/spec/spec/svg.js
+++ b/spec/spec/svg.js
@@ -1,23 +1,23 @@
 describe('SVG', function() {
   
   describe('()', function() {
-    var canvas, wrapper
+    var drawing, wrapper
     
     beforeEach(function() {
       wrapper = document.createElement('div')
       document.getElementsByTagName('body')[0].appendChild(wrapper)
-      canvas = SVG(wrapper)
+      drawing = SVG(wrapper)
     })
     
     afterEach(function() {
       wrapper.parentNode.removeChild(wrapper)
     })
     
-    it('creates a new svg canvas', function() {
-      expect(canvas.type).toBe('svg')
+    it('creates a new svg drawing', function() {
+      expect(drawing.type).toBe('svg')
     })
     it('creates an instance of SVG.Doc', function() {
-      expect(canvas instanceof SVG.Doc).toBe(true)
+      expect(drawing instanceof SVG.Doc).toBe(true)
     })
   })
   
diff --git a/spec/spec/text.js b/spec/spec/text.js
index 6c4d9c6..2e373a4 100755
--- a/spec/spec/text.js
+++ b/spec/spec/text.js
@@ -33,15 +33,17 @@ describe('Text', function() {
     it('returns the value of y without an argument', function() {
       expect(text.y(0).y()).toBe(0)
     })
+    it('returns the value of y when y is a percentual value', function() {
+      expect(text.y('45%').y()).toBe('45%')
+    })
     it('sets the value of y with the first argument', function() {
       text.y(345)
       var box = text.bbox()
       expect(box.y).toBe(345)
     })
-    it('sets the value of y based on the anchor with the first argument', function() {
-      text.y(345, true)
-      var box = text.bbox()
-      expect(box.y).toBe(345)
+    it('sets the value of y with a percent value', function() {
+      text.y('40%')
+      expect(text.node.getAttribute('y')).toBe('40%')
     })
   })
   
@@ -112,6 +114,11 @@ describe('Text', function() {
       expect(text.node.childNodes[0].nodeType).toBe(1)
       expect(text.node.childNodes[0].childNodes[0].nodeValue).toBe('It is a bear!')
     })
+    it('adds content in a nested tspan even with an empty string', function() {
+      text.text('')
+      expect(text.node.childNodes[0].nodeType).toBe(1)
+      expect(text.node.childNodes[0].childNodes[0].nodeValue).toBe('')
+    })
     it('creates multiple lines with a newline separated string', function() {
       text.text('It is\nJUST\na bear!')
       expect(text.node.childNodes.length).toBe(3)
diff --git a/src/element.js b/src/element.js
index 9c52dd0..e63b57e 100755
--- a/src/element.js
+++ b/src/element.js
@@ -293,8 +293,8 @@ SVG.Element = SVG.invent({
           s = s.split(';')
 
           /* apply every definition individually */
-          for (v = 0; v < s.length; v++) {
-            v = s[v].split(':')
+          for (var i = 0; i < s.length; i++) {
+            v = s[i].split(':')
             this.style(v[0].replace(/\s+/g, ''), v[1])
           }
         } else {
diff --git a/src/event.js b/src/event.js
index 73e3ba5..885eab8 100755
--- a/src/event.js
+++ b/src/event.js
@@ -1,8 +1,4 @@
-// ### Manage events on elements
-
-//     rect.click(function() {
-//       this.fill({ color: '#f06' })
-//     })
+// Add events to elements
 ;[  'click'
   , 'dblclick'
   , 'mousedown'
@@ -31,20 +27,23 @@
   
 })
 
+// Initialize events stack
+SVG.events = {}
+
+// Event constructor
+SVG.registerEvent = function(event) {
+  if (!SVG.events[event])
+    SVG.events[event] = new Event(event)
+}
+
 // Add event binder in the SVG namespace
 SVG.on = function(node, event, listener) {
-  if (node.addEventListener)
-    node.addEventListener(event, listener, false)
-  else
-    node.attachEvent('on' + event, listener)
+  node.addEventListener(event, listener.bind(node.instance || node), false)
 }
 
 // Add event unbinder in the SVG namespace
 SVG.off = function(node, event, listener) {
-  if (node.removeEventListener)
-    node.removeEventListener(event, listener, false)
-  else
-    node.detachEvent('on' + event, listener)
+  node.removeEventListener(event, listener.bind(node.instance || node), false)
 }
 
 //
@@ -61,4 +60,10 @@ SVG.extend(SVG.Element, {
     
     return this
   }
+  // Fire given event
+, fire: function(event) {
+    this.node.dispatchEvent(SVG.events[event])
+
+    return this
+  }
 })
\ No newline at end of file
diff --git a/src/pointarray.js b/src/pointarray.js
index 16f3283..e246adf 100755
--- a/src/pointarray.js
+++ b/src/pointarray.js
@@ -69,7 +69,7 @@ SVG.extend(SVG.PointArray, {
     /* recalculate position of all points according to new size */
     for (i = this.value.length - 1; i >= 0; i--) {
       this.value[i][0] = ((this.value[i][0] - box.x) * width)  / box.width  + box.x
-      this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.x
+      this.value[i][1] = ((this.value[i][1] - box.y) * height) / box.height + box.y
     }
 
     return this
diff --git a/src/regex.js b/src/regex.js
index c78d9f3..433952b 100755
--- a/src/regex.js
+++ b/src/regex.js
@@ -30,4 +30,7 @@ SVG.regex = {
   /* test for image url */
 , isImage:      /\.(jpg|jpeg|png|gif)(\?[^=]+.*)?/i
   
+  /* test for namespaced event */
+, isEvent:      /^[\w]+:[\w]+$/
+
 }
\ No newline at end of file
diff --git a/src/svg.js b/src/svg.js
index 07afa7a..e0e5b44 100755
--- a/src/svg.js
+++ b/src/svg.js
@@ -1,6 +1,6 @@
 
 // The main wrapping element
-this.SVG = function(element) {
+var SVG = this.SVG = function(element) {
   if (SVG.supported) {
     element = new SVG.Doc(element)
 
@@ -65,7 +65,7 @@ SVG.get = function(id) {
 SVG.prepare = function(element) {
   /* select document body and create invisible svg element */
   var body = document.getElementsByTagName('body')[0]
-    , draw = (body ? new SVG.Doc(body) : element.nested()).size(2, 2)
+    , draw = (body ? new SVG.Doc(body) : element.nested()).size(2, 0)
     , path = SVG.create('path')
 
   /* insert parsers */
@@ -86,4 +86,4 @@ SVG.supported = (function() {
          !! document.createElementNS(SVG.ns,'svg').createSVGRect
 })()
 
-if (!SVG.supported) return false
\ No newline at end of file
+if (!SVG.supported) return false
diff --git a/src/text.js b/src/text.js
index 170b9de..1d05362 100755
--- a/src/text.js
+++ b/src/text.js
@@ -31,13 +31,14 @@ SVG.Text = SVG.invent({
     }
     // Move over y-axis
   , y: function(y) {
-      var o = this.attr('y') - this.bbox().y
+      var oy = this.attr('y')
+        , o  = typeof oy === 'number' ? oy - this.bbox().y : 0
 
       /* act as getter */
       if (y == null)
-        return this.attr('y') - o
+        return typeof oy === 'number' ? oy - o : oy
 
-      return this.attr('y', y + o)
+      return this.attr('y', typeof y === 'number' ? y + o : y)
     }
     // Move center over x-axis
   , cx: function(x) {
@@ -50,7 +51,7 @@ SVG.Text = SVG.invent({
     // Set the text content
   , text: function(text) {
       /* act as getter */
-      if (!text) return this.content
+      if (typeof text === 'undefined') return this.content
       
       /* remove existing content */
       this.clear().build(true)
@@ -61,7 +62,7 @@ SVG.Text = SVG.invent({
 
       } else {
         /* store text and make sure text is not blank */
-        text = (this.content = (SVG.regex.isBlank.test(text) ? 'text' : text)).split('\n')
+        text = (this.content = text).split('\n')
         
         /* build new lines */
         for (var i = 0, il = text.length; i < il; i++)
@@ -88,14 +89,14 @@ SVG.Text = SVG.invent({
     }
     // Rebuild appearance type
   , rebuild: function(rebuild) {
-      var self = this
-
       /* store new rebuild flag if given */
       if (typeof rebuild == 'boolean')
         this._rebuild = rebuild
 
       /* define position of all lines */
       if (this._rebuild) {
+        var self = this
+        
         this.lines.each(function() {
           if (this.newLined) {
             if (!this.textPath)
@@ -103,6 +104,8 @@ SVG.Text = SVG.invent({
             this.attr('dy', self._leading * new SVG.Number(self.attr('font-size'))) 
           }
         })
+
+        this.fire('rebuild')
       }
 
       return this
@@ -216,3 +219,5 @@ SVG.extend(SVG.Text, SVG.TSpan, {
   }
 })
 
+// Register rebuild event
+SVG.registerEvent('rebuild')