How to target a Movieclip within a Movieclip on the stage (in a class)

1

Peepz,

Im building a scroll class which looks like this:


package { 
import flash.display.Sprite; 
import flash.events.MouseEvent; 
import flash.events.Event; 
import flash.geom.Rectangle; 
import flash.display.DisplayObjectContainer 
import flash.display.MovieClip; 
public class ContentScroller2  {   
   
  //eigen code 
  private var moveSpeed:Number 
  private var easingSpeed:Number 
  private var scrollHeight:Number 
  private var percentScrolled:Number 
  private var newY:Number 
         
  // how much of the movie can be scrolled 
  private var scrollable:Number 
  private var initContentPos:Number 
     
  // the drag positions that are possible for the mcDragger 
  private var left:Number 
  private var top:Number 
  private var right:Number 
  private var bottom:Number 
  private var scrollWheelSpeed:Number   
   
  private var _mcContent:Sprite 
  private var _mcMask:Sprite 
  private var _mcDragger:Sprite 
  private var _mcTrack:Sprite 
   
  private var dragBounds:Rectangle; 
  public function ContentScroller2(mcContent:Sprite, mcMask:Sprite, mcDragger:Sprite, mcTrack:Sprite, ease:Number, setDraggerSize:Boolean = false) 
  {       
    _mcContent = mcContent 
      _mcMask = mcMask 
      _mcDragger = mcDragger 
      _mcTrack = mcTrack 
     
    moveSpeed = 2; 
    easingSpeed = 5; 
    scrollHeight = _mcTrack.height ; 
         
    // how much of the movie can be scrolled 
    scrollable = Math.round(_mcContent.mcRegister.height - mcMask.height); 
    initContentPos = 12 
     
    // the drag positions that are possible for the mcDragger 
    left = _mcTrack.x; 
    top = _mcTrack.y + 26; 
    right = _mcTrack.x; 
    bottom = _mcTrack.height - _mcDragger.height + _mcTrack.y 
    scrollWheelSpeed = 30;     
     
    dragBounds = new Rectangle(_mcDragger.x, _mcDragger.y, 0, _mcTrack.height - _mcDragger.height); 
     
    initHorizontal(); 
  } 
   
    private function initHorizontal():void 
    { 
        // before we do anything make sure the content is even scrollable, if it isn't hide everything and return 
        if (scrollable<0) 
        { 
            _mcDragger.visible = false; 
            _mcTrack.visible = false 
            //btnDown.enabled = false; 
            return; 
             
            _mcContent.removeEventListener(Event.ENTER_FRAME, updateContentPos); 
        }   
        else 
        { 
            addListeners(); 
        } 
    } 
   
    private function addListeners():void {         
         
        _mcDragger.addEventListener(MouseEvent.MOUSE_DOWN,   draggerDown); 
        _mcDragger.addEventListener(MouseEvent.MOUSE_UP, removeDraggerEvents); 
    } 
   
    private function draggerDown (me:MouseEvent):void { 
                 
        _mcDragger.startDrag(false, dragBounds);         
        _mcDragger.addEventListener(MouseEvent.MOUSE_MOVE,   draggerMouseMove); 
        //_mcContent.addEventListener(Event.ENTER_FRAME, updateContentPos); 
    } 
     
    private function draggerMouseMove (me:MouseEvent):void { 
        updateContentPos(); 
    } 
     
    private function removeDraggerEvents (me:MouseEvent):void { 
        _mcContent.removeEventListener(Event.ENTER_FRAME, updateContentPos); 
        _mcDragger.removeEventListener(MouseEvent.MOUSE_MO  VE, draggerMouseMove); 
        _mcDragger.stopDrag(); 
    } 
     
    private function updateContentPos ():void 
    { 
        percentScrolled = (_mcDragger.y-top)/(scrollHeight-_mcDragger.height);         
        // instead of setting the _y property directly, we simple set newY 
        // that way we can adjust how we handle the new Y coordinate we'd like to move to 
        newY = Math.round(initContentPos-(percentScrolled*scrollable));         
        trace(percentScrolled) 
         
         
        _mcContent.y += Math.round((newY-_mcContent.y)/easingSpeed); 
    } 
}

i have a code inside my total movie which contains the scroller, the code is:


var myContentScroller:ContentScroller2 = new ContentScroller2(mcContent, mcMask, mcDragger, mcTrack, 3, false)

All the clips like: mcContent, mcMask, mcDragger, mcTrack are on the stage.
To use this MC’s well i have to (or maybe not) i have to “re-assign” them in the package like (maybe there is a cleaner and better way?):


_mcContent = mcContent 
_mcMask = mcMask 
_mcDragger = mcDragger 
_mcTrack = mcTrack

but now my final question is how can i target the movieClip “mcRegister” which is inside “mcContent” on the stage? (in AS1 it was like mcContent.mcRegister but that wont work.)
the code in the package is like:


scrollable = Math.round(_mcContent.mcRegister.height - mcMask.height);

Hope somebody can help me out!

Greetz!