ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Using the Flash Text Engine
}
}
public function changeSize(size:uint=12):void
{
if (size > 5)
{
var ef2:ElementFormat = ef1.clone();
ef2.fontSize = size;
te.elementFormat = ef2;
this.rebreakLines();
}
}
public function changeCase(newCase:String = "default"):void
{
var ef2:ElementFormat = ef1.clone();
ef2.typographicCase = newCase;
te.elementFormat = ef2;
}
HeadlineTextBlock.as extends the FormattedTextBlock class and is used for creating headlines. It includes a function
for fitting text within a defined space on the page.
package com.example.programmingas3.newslayout
{
import flash.text.engine.*;
public class HeadlineTextField extends FormattedTextBlock
{
public static var MIN_POINT_SIZE:uint = 6;
public static var MAX_POINT_SIZE:uint = 128;
public function HeadlineTextField(te:ElementFormat,txt:String,colW:int = 0)
{
super(te,txt);
}
public function fitText(maxLines:uint = 1, targetWidth:Number = -1):uint
{
if (targetWidth == -1)
{
targetWidth = this.width;
}
var pixelsPerChar:Number = targetWidth / this.blockText.length;
var pointSize:Number = Math.min(MAX_POINT_SIZE,
Math.round(pixelsPerChar * 1.8 * maxLines));
if (pointSize < 6)
{
// the point size is too small
return pointSize;
}
this.changeSize(pointSize);
if (this.totalTextLines > maxLines)
Last updated 6/6/2012
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