mxtest

<?xml version="1.0" encoding="utf-8"?>
<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml" horizontalGap="0">
<mx:Script>
<![CDATA[
import mx.effects.Move;
import events.*;
import mx.controls.Alert;
 
private var _selectedBtn:Button = null;
private var _selectedIndex:int = 0;
private var _itemsPerPage:int = 0;
private var _totalItems:int = 0;
private var _pages:int = 0;
private var _visiblePages:int = 0;
private var _dataProvider:Array = [];
 
private var pageMove:Move = new Move();
 
public function get selectedIndex():int
{
	return _selectedIndex;
}
public function set selectedIndex(value:int):void
{
pageMove.target = pageHolder;
var index:int = 0;
var btn:Button = null;
value = Math.max(0, value);
if (this.initialized)
{
if (pageHolder.numChildren > 0)
{
btn = pageHolder.getChildAt(value) as Button;
if (_selectedBtn != null)
{
_selectedBtn.selected = false;
}
_selectedBtn = btn;
_selectedBtn.selected = true;
}
index = Math.round(visiblePages / 2);
if (value < (index - 1))
{
movePage(0);
}
else if (value > _dataProvider.length - index)
{
movePage((-(_dataProvider.length - visiblePages)) * 45);
}
else
{
movePage(-Math.round((value + 1) * 45) + index * 45);
}
prevBtn.enabled = firstBtn.enabled = value == 0 || pageHolder.numChildren == 0 ? (false) : (true);
nextBtn.enabled = lastBtn.enabled = value == (_dataProvider.length - 1) ? (false) : (true);
}
_selectedIndex = value;
 
var event:PaginatorEvent = new PaginatorEvent(PaginatorEvent.PAGE_CHANGE);
event.page = _selectedIndex;
dispatchEvent(event);
 
}
public function get selectedBtn():Button
{
return _selectedBtn;
}
public function set selectedBtn(value:Button):void
{
_selectedBtn = value;
}
public function get itemsPerPage():int
{
return _itemsPerPage;
}
public function set itemsPerPage(value:int):void
{
_itemsPerPage = value;
if(_totalItems > 0 && _itemsPerPage > 0)
update();
}
public function get pages():int
{
return _pages;
}
public function set pages(value:int):void
{
_pages = value;
}
public function get visiblePages():int
{
return _visiblePages;
}
public function set visiblePages(value:int):void
{
_visiblePages = value;
 
}
public function get totalItems():int
{
return _totalItems;
}
public function set totalItems(value:int):void
{
_totalItems = value;
if(_itemsPerPage > 0)
update();
}
public function get dataProvider():Array
{
return _dataProvider;
}
public function set dataProvider(value:Array):void
{
_dataProvider = value;
}
 
private function update():void
{
var totalPages:int = 0;
pages = Math.ceil(totalItems / itemsPerPage);
if (_dataProvider.length < _pages)
{
totalPages = _dataProvider.length;
while (totalPages < _pages)
{
_dataProvider.push(totalPages);
var btn:Button = new Button();
btn.width = 45;
btn.label = String((totalPages + 1)) as String;
btn.data = totalPages;
btn.addEventListener(MouseEvent.CLICK, pageClickHandler);
btn.setStyle("paddingLeft", 0);
btn.setStyle("paddingRight", 0);
btn.setStyle("cornerRadius", 10);
pageHolder.addChildAt(btn, totalPages);
totalPages++;
}
pageCan.width = 45 * _visiblePages;
}
else if (_dataProvider.length > _pages)
{
totalPages = _dataProvider.length - 1;
while (totalPages >= _pages)
{
_dataProvider.splice(totalPages);
btn = Button(pageHolder.removeChildAt(totalPages)) as Button;
btn.removeEventListener(MouseEvent.CLICK, pageClickHandler);
btn.width = 0;
totalPages = totalPages - 1;
}
}
selectedIndex = Math.min(selectedIndex, (_dataProvider.length - 1));
 
var event:PaginatorEvent = new PaginatorEvent(PaginatorEvent.PAGE_CHANGE);
event.page = _selectedIndex;
dispatchEvent(event);
}
 
private function pageClickHandler(vEvent:MouseEvent):void
{
var btn:Button = vEvent.currentTarget as Button;
selectedIndex = btn.data as int;
}
private function movePage(newPos:int) : void
{
var currentPos:Number = -(pageHolder.width - visiblePages * 45);
if (newPos < currentPos)
{
newPos = currentPos;
}
newPos = Math.min(0, newPos);
pageMove.end();
pageMove.xTo = newPos;
pageMove.play(); 
}
private function onNPClick(vEvent:MouseEvent):void
{
switch(vEvent.target)
{
case prevBtn:
{
if (selectedIndex > 0)
{
var prevIndex:int = selectedIndex - 1;
selectedIndex = prevIndex;
}
break;
}
case nextBtn:
{
if (selectedIndex < (_dataProvider.length - 1))
{
var nextIndex:int = selectedIndex + 1;
selectedIndex = nextIndex;
}
break;
}
case firstBtn:
{
selectedIndex = 0;
break;
}
case lastBtn:
{
selectedIndex = _dataProvider.length - 1;
break;
}
default:
{
break;
}
}
}
]]>
</mx:Script>
 
<mx:Button id="firstBtn" label="&lt;&lt;" click="onNPClick(event)"/>
<mx:Button id="prevBtn" label="&lt;" click="onNPClick(event)"/>
 
<mx:Canvas width="100%" horizontalScrollPolicy="off" id="pageCan">
<mx:HBox horizontalGap="0" horizontalScrollPolicy="off" id="pageHolder"/>
</mx:Canvas>
 
<mx:Button id="nextBtn" label="&gt;" click="onNPClick(event)"/>
<mx:Button id="lastBtn" label="&gt;&gt;" click="onNPClick(event)"/>
 
</mx:HBox>