package
{
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.system.System;
import flash.text.TextField;
import flash.text.TextFormat;
import flashx.textLayout.container.ContainerController;
import flashx.textLayout.container.ScrollPolicy;
import flashx.textLayout.edit.EditManager;
import flashx.textLayout.elements.DivElement;
import flashx.textLayout.elements.InlineGraphicElement;
import flashx.textLayout.elements.ParagraphElement;
import flashx.textLayout.elements.SpanElement;
import flashx.textLayout.elements.TextFlow;
import flashx.textLayout.formats.TextLayoutFormat;
import flashx.textLayout.formats.VerticalAlign;
import flashx.textLayout.tlf_internal;
import flashx.undo.UndoManager;
use namespace tlf_internal;
[SWF (width="500", height="700", backgroundColor="#FFFFFF")]
public class SingleContainerTest extends Sprite
{
protected var tf:TextFlow;
protected var em:EditManager;
protected var um:flashx.undo.UndoManager
protected var _bg:Sprite;
protected var _spr:Sprite;
protected var _cc:ContainerController
protected var _init_fmt:TextLayoutFormat;
protected var _btn:Sprite;
protected var _playing:Boolean = false;
protected var _count:int = 0;
protected var _graph:Sprite;
protected var _print_out:TextField;
protected var _last_time:Date = new Date();
protected var _last_five:Array = [];
public function SingleContainerTest()
{
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
var cw:Number = 200; // the container width
var ch:Number = 600; // the container height
_bg = new Sprite();
_bg.graphics.lineStyle(.25, 0);
_bg.graphics.drawRect(0,0,cw,ch);
addChild(_bg);
_spr = new Sprite();
addChild(_spr);
_graph = new Sprite();
_graph.x = cw + 10;
_graph.y = 250;
addChild(_graph);
_print_out = new TextField();
var fmt:TextFormat = _print_out.defaultTextFormat;
fmt.font = "_sans";
_print_out.wordWrap = true;
_print_out.multiline = true;
_print_out.width = stage.stageWidth - (10 + _graph.x);
_print_out.x = _graph.x;
_print_out.y = _graph.y + 10;
addChild(_print_out);
//define TextFlow and manager objects
tf = new TextFlow();
um = new UndoManager();
em = new EditManager(um);
tf.interactionManager = em;
//compose TextFlow to display
_cc = new ContainerController(_spr,cw,ch);
//_cc.verticalAlign = VerticalAlign.BOTTOM;
//_cc.verticalScrollPolicy = ScrollPolicy.ON;
tf.flowComposer.addController(_cc);
tf.flowComposer.updateAllControllers();
//make a button to add Inline Graphic elements
_btn = new Sprite();
_btn.graphics.beginFill(0xFF0000,1);
_btn.graphics.drawRect(0,0,120,30);
addChild(_btn);
_btn.addEventListener(MouseEvent.CLICK, btnClicked);
_btn.y = 600;
addMessage("1");
addMessage("2");
addMessage("3", true);
}
public function addMessage(msg:String, add_image:Boolean = false):void {
//define elements to contain text
var d:DivElement = new DivElement();
var p:ParagraphElement = new ParagraphElement();
var s:SpanElement = new SpanElement();
s.text = msg;
//add these elements to the TextFlow
p.addChild(s);
d.addChild(p);
if(add_image){
var sp:Sprite = new Sprite();
sp.graphics.beginFill(0xFFCC00);
sp.graphics.drawRect(0,0,100,20);
var i:InlineGraphicElement = new InlineGraphicElement();
i.source = sp;
i.width = 100;
i.height = 20;
p.addChild(i);
}
tf.addChild(d);
tf.flowComposer.updateAllControllers();
_cc.verticalScrollPosition = _cc.getContentBounds().height;
tf.flowComposer.updateAllControllers();
}
protected function btnClicked(e:MouseEvent):void {
_playing = !_playing;
removeEventListener(Event.ENTER_FRAME, onEnterFrame);
if(_playing){
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
}
protected function onEnterFrame(e:Event):void {
_count++;
if(_count > 100){
tf.removeChildAt(0);
}
addMessage("Message Number: " + _count + " " + randomString());
printOut()
}
protected function printOut():void {
var now:Date = new Date();
var tm:Number = (now.getTime() - _last_time.getTime());
_last_five.push(tm);
if(_last_five.length > 10) _last_five.shift();
var avg_tm:Number = 0;
for(var i:int = 0; i < _last_five.length; i++) avg_tm += _last_five[i];
avg_tm = Math.round(avg_tm/_last_five.length);
var elapsed_str:String = "message: \t\t\t"+_count
+ "\ntime: \t\t\t\t" + tm + "ms"
+ "\navg of last 10:\t\t" + avg_tm +"ms";
//trace(elapsed_str );
_print_out.text = elapsed_str;
_last_time = now;
drawGraph(tm);
}
protected function drawGraph(tm:Number):void {
if(_count % 5 == 0){
_graph.graphics.beginFill(0x0);
_graph.graphics.drawRect(_count/10,-Math.round(tm/10),1,1);
_graph.graphics.beginFill(0xFF0000);
_graph.graphics.drawRect(_count/10,-Math.round(System.totalMemory/1000 000),1,1);
}
}
protected function randomString():String {
var chars:String = "abcdefghijklmnopqrstuvwzyz ";
var chars_len:Number = chars.length;
var random_str:String = "";
var num_chars:Number = Math.round(Math.random() * 100);
for (var i:int =0; i < num_chars; i++){
random_str = random_str + chars.charAt(Math.round(Math.random() * chars_len));
}
return random_str;
}
}
}
