Treccani Italiana Di Scienze Lettere Ed Arti/[Enciclopedia] Treccani Italiana di scienze lettere ed arti.iso/pc/data/xxi_appendice_dvd.swf/scripts/__Packages/CScrollableMenu.as

Text File | 2007-11-08 | 6KB | 146 lines

class CScrollableMenu extends mx.core.UIObject
{
   function CScrollableMenu()
   {
      super();
      this.mMaxItemNumber = 5;
      this.mRowHeigth = 26;
      this.mWidth = this._width;
      this.mRect = new Object({left:this._x,top:this._y,right:this._x + this._width,bottom:this._y + this._height});
      this.mType = "pullDown";
      this.mShowGrabRect = false;
      this._xscale = this._yscale = 100;
      this.Hide();
      this.doLater(this,"init");
   }
   function init()
   {
      this.mc_Background._x = 0;
      this.mc_Background._y = 0;
      this.mc_Background._height = this.mRowHeigth;
      this.SetWidth(this.mWidth);
      this.mc_MenuListbox.__set__rowHeight(this.mRowHeigth);
      this.mc_MenuListbox.setStyle("borderStyle","none");
      this.mc_MenuListbox.setStyle("borderColor",12566711);
      this.mc_MenuListbox.embedFonts = _global.gUseEmbeddedFont;
      this.mc_MenuListbox.setStyle("backgroundColor",7174258);
      this.mc_MenuListbox.setStyle("rollOverColor",10398115);
      this.mc_MenuListbox.setStyle("selectionColor",9477012);
      this.mc_MenuListbox.setStyle("color",16777215);
      this.mc_MenuListbox.setStyle("textRollOverColor",16777215);
      this.mc_MenuListbox.setStyle("textSelectedColor",16777215);
      this.mc_MenuListbox.addEventListener("change",mx.utils.Delegate.create(this,this.onItemSelected));
      this.mc_ButtonUp.addEventListener("click",mx.utils.Delegate.create(this,this.onScrollUp));
      this.mc_ButtonDown.addEventListener("click",mx.utils.Delegate.create(this,this.onScrollDown));
      this.mc_GrabRect.onPress = mx.utils.Delegate.create(this,this.Hide);
      this.mc_MenuListbox.__set__vScrollPolicy("off");
   }
   function SetWidth(inW)
   {
      this.mWidth = inW;
      this.mc_Background._width = this.mWidth;
      this.mc_ButtonUp.setSize(this.mWidth,this.mRowHeigth - 1);
      this.mc_ButtonDown.setSize(this.mWidth,this.mRowHeigth - 1);
      this.mc_MenuListbox.setSize(this.mWidth,this.mRowHeigth);
   }
   function setIconFunction(inFunction)
   {
      this.mc_MenuListbox.setIconFunction(inFunction);
   }
   function setCellRenderer(inRenderer, embeddedFont)
   {
      this.mc_MenuListbox.embedFonts = embeddedFont;
      this.mc_MenuListbox.setCellRenderer(inRenderer);
   }
   function onScrollUp(evtObj)
   {
      var _loc2_ = this.mc_MenuListbox.__get__vPosition() - 1;
      this.mc_MenuListbox.__set__vPosition(_loc2_);
      this.mc_ButtonUp.enabled = _loc2_ > 0;
      this.mc_ButtonDown.enabled = _loc2_ < this.mc_MenuListbox.length - this.mc_MenuListbox.__get__rowCount();
   }
   function onScrollDown(evtObj)
   {
      var _loc2_ = this.mc_MenuListbox.__get__vPosition() + 1;
      this.mc_MenuListbox.__set__vPosition(_loc2_);
      this.mc_ButtonUp.enabled = _loc2_ > 0;
      this.mc_ButtonDown.enabled = _loc2_ < this.mc_MenuListbox.length - this.mc_MenuListbox.__get__rowCount();
   }
   function onItemSelected(evtObj)
   {
      this.Hide();
      var _loc2_ = evtObj.target;
      var _loc3_ = _loc2_.dataProvider.getItemAt(_loc2_.selectedIndex);
      this.dispatchEvent({type:"scrollableMenuItemSelected",target:this,data:_loc3_,selectedItemIndex:_loc2_.selectedIndex});
   }
   function Show(inRecordset, inSelected)
   {
      var _loc3_ = Math.min(inRecordset.length,this.mMaxItemNumber);
      this.mc_MenuListbox.__set__rowCount(_loc3_);
      this.mc_MenuListbox.dataProvider = inRecordset;
      if(inRecordset.length > this.mMaxItemNumber)
      {
         this.mc_ButtonUp._y = 1;
         this.mc_MenuListbox._y = this.mc_ButtonUp._y + this.mc_ButtonUp.__get__height();
         this.mc_ButtonDown._y = this.mc_MenuListbox._y + this.mc_MenuListbox.__get__height() + 1;
         this.mc_Background._height = this.mc_ButtonDown._y + this.mc_ButtonDown.__get__height() + 1;
         this.mc_ButtonUp._visible = true;
         this.mc_ButtonDown._visible = true;
         this.mc_ButtonUp.enabled = false;
         this.mc_ButtonDown.enabled = true;
      }
      else
      {
         this.mc_Background._height = this.mc_MenuListbox.__get__height() + 1;
         this.mc_ButtonUp._visible = false;
         this.mc_ButtonDown._visible = false;
         this.mc_MenuListbox._y = 0;
      }
      if(inSelected >= 0)
      {
         this.mc_MenuListbox.selectedIndex = inSelected;
      }
      if(this.mType == "pullDown")
      {
         this._y = this.mRect.top;
      }
      else
      {
         this._y = this.mRect.bottom - this.mc_Background._height;
      }
      this.mc_Background._visible = true;
      this.mc_MenuListbox._visible = true;
      if(this.mShowGrabRect)
      {
         this.InitGrabRect(this.mc_GrabRect);
         this.mc_GrabRect._visible = true;
      }
      this._visible = true;
   }
   function Hide()
   {
      this.mc_GrabRect._visible = false;
      this.mc_ButtonUp._visible = false;
      this.mc_ButtonDown._visible = false;
      this.mc_MenuListbox._visible = false;
      this.mc_Background._visible = false;
      this._visible = false;
   }
   function ReleaseMemory()
   {
      this.Hide();
   }
   function InitGrabRect(inClip)
   {
      var _loc2_ = {x:0,y:0};
      inClip._xscale = inClip._yscale = 100;
      inClip._x = inClip._y = 0;
      inClip.globalToLocal(_loc2_);
      inClip._x = _loc2_.x;
      inClip._y = _loc2_.y;
      inClip._width = Stage.width;
      inClip._height = Stage.height;
      inClip.useHandCursor = false;
   }
}