Create a button with font-icon and pure actionscript 3

As I see that the font-icon technique is becoming very popular, and I personally like it very much I decided to post some code of how to create a simple button with an Icon using only AS3 as it is lighter and much faster on mobile devices.

We will create a class that will hold our button, as you will see I have embedded the signify font, (signify is a font which has icons corresponding to letters and numbers):

package
{
import flash.display.GradientType;
import flash.display.Shape;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.text.TextField;
import flash.text.TextFormat;
import flash.utils.getQualifiedClassName;

public class UIButton extends Sprite
{
[Embed(source="fonts/signify-webfont.ttf", fontFamily="Signify", embedAsCFF="false")]
public static var signify:String;

private var myShape:Shape;
private var gradientBoxMatrix:Matrix;
private var masterWidth:Number;
private var masterHeight:Number;

private var radius:Number = 10;

public function UIButton()
{
super();
}
}
}

Next we will create the main function that draws the button:

public function createButton(gradientColor_:Array = null, width:Number=120, height:Number=60, x:Number=10, y:Number=10, _text:String = 'E')
{

}

First we draw the matrix for the gradients and the rectangle:

myShape = new Shape();
gradientBoxMatrix = new Matrix();
gradientBoxMatrix.createGradientBox(width, height, Math.PI/2, 0, 0);
myShape.graphics.beginGradientFill(GradientType.LINEAR, gradientColor_, [1,1,1], [0,128,255],gradientBoxMatrix);
myShape.graphics.lineStyle(2, 0x1e1e1e);
myShape.graphics.drawRoundRect(0,0,width,height,radius);
myShape.graphics.endFill();

And now we create the icon:

var tfl:TextField = new TextField();
tfl.text = _text;
tfl.width = width/2;
tfl.height = height/2;
tfl.textColor = 0x0e0e0e;
tfl.embedFonts = true;
var tf:TextFormat = new TextFormat('Signify',38,0x0e0e0e); //here we define the embedded font
tfl.setTextFormat(tf);
tfl.selectable = false;

tfl.x = width/2 - tfl.textWidth+19;
tfl.y = -10;

finally we add them to the display object:

this.addChild(myShape);
this.addChild(tfl);

we can easily call this class by doing:

var button:UIButton = new UIButton();
button.createButton([0xffffff,0xf1f1f1,0xf8f8f8]);
addChild(button);

View an example here: MobileUI