Sky at Night 2009 October/SAN CD 10-2009 CD-ROM 53.iso/pc/system/gdbPopup.dxr/00007_scrollBar.swf/scripts/frame_1/DoAction.as

Text File | 2009-06-29 | 5.3 KB | 180 lines

function hideScrollbar()
{
   _level0.scrollActive = false;
   _level0.scrollVisible = false;
   _level0.endBarTop_mc._visible = false;
   _level0.endBarBot_mc._visible = false;
   _level0.vertBar_mc._visible = false;
   _level0.scrollBtn_mc._visible = false;
}
function showScrollbar()
{
   _level0.scrollVisible = true;
   _level0.endBarTop_mc._visible = true;
   _level0.endBarBot_mc._visible = true;
   _level0.vertBar_mc._visible = true;
   _level0.scrollBtn_mc._visible = true;
}
function positionBars()
{
   _level0.endBarTop_mc._y = 0;
   _level0.endBarBot_mc._y = _level0.viewHeight - 1;
   _level0.vertBar_mc._height = _level0.viewHeight - 2;
   _level0.vertBar_mc._y = 1;
   _level0.hitArea_mc._height = _level0.viewHeight;
   _level0.hitArea_mc._y = 0;
}
function buildScrollBtn()
{
   _level0.overflow = _level0.contentHeight - _level0.viewHeight;
   var _loc1_ = (_level0.viewHeight - 2) / _level0.contentHeight * (_level0.contentHeight - _level0.overflow);
   _level0.scrollBtn_mc.scrollBtnTop_mc._y = 0;
   if(_loc1_ < _level0.minBtnHeight)
   {
      _level0.scrollBtn_mc.scrollBtnMid_mc._visible = false;
      _level0.scrollBtn_mc.scrollBtnBot_mc._y = _level0.scrollBtn_mc.scrollBtnTop_mc._height;
      _level0.proportionalBtn = false;
      _level0.maxThrow = _level0.viewHeight - 2 - _level0.minBtnHeight;
   }
   else
   {
      _level0.scrollBtn_mc.scrollBtnMid_mc._visible = true;
      _level0.scrollBtn_mc.scrollBtnMid_mc._height = _loc1_ - (_level0.scrollBtn_mc.scrollBtnTop_mc._height + _level0.scrollBtn_mc.scrollBtnBot_mc._height);
      _level0.scrollBtn_mc.scrollBtnMid_mc._y = _level0.scrollBtn_mc.scrollBtnTop_mc._height;
      _level0.scrollBtn_mc.scrollBtnBot_mc._y = _level0.scrollBtn_mc.scrollBtnTop_mc._height + _level0.scrollBtn_mc.scrollBtnMid_mc._height;
      _level0.proportionalBtn = true;
   }
}
function buildScroller(aViewHeight, aContentHeight)
{
   if(aViewHeight != undefined && aContentHeight != undefined)
   {
      if(aContentHeight <= aViewHeight)
      {
         _level0.scrollActive = false;
         _level0.hideScrollbar();
      }
      else
      {
         _level0.viewHeight = aViewHeight;
         _level0.contentHeight = aContentHeight;
         _level0.maxBtnY = aViewHeight - 1;
         _level0.positionBars();
         _level0.buildScrollBtn();
         _level0.maxThrow = aViewHeight - 2 - _level0.scrollBtn_mc._height;
         Stage.height = aViewHeight;
         _level0.scrollRatio = (_level0.contentHeight - _level0.viewHeight) / _level0.maxThrow;
         _level0.scrollBtn_mc._y = _level0.minBtnY;
         _level0.scrollActive = false;
         _level0.showScrollbar();
      }
   }
}
function sendScrollEvent(scrollAmount)
{
   if(scrollAmount != _level0.lastScroll)
   {
      getURL("[\"scrollTo\", " + scrollAmount + "]","");
      _level0.lastScroll = scrollAmount;
   }
}
function activateBtnDrag()
{
   _level0.scrollActive = true;
   _level0.scrollBtn_mc.startDrag(false,_level0.scrollBtn_mc._x,_level0.minBtnY,_level0.scrollBtn_mc._x,_level0.maxBtnY - _level0.scrollBtn_mc._height);
   _level0.onEnterFrame = function()
   {
      var _loc1_ = undefined;
      if(_level0.scrollBtn_mc._y <= _level0.minBtnY)
      {
         _loc1_ = 0;
      }
      else if(_level0.scrollBtn_mc._y >= _level0.maxThrow)
      {
         _loc1_ = _level0.overflow;
      }
      else
      {
         _loc1_ = Math.ceil((_level0.scrollBtn_mc._y - _level0.minBtnY) * _level0.scrollRatio);
      }
      _level0.sendScrollEvent(_loc1_);
   };
}
function deactivateBtnDrag()
{
   _level0.scrollActive = false;
   _level0.scrollBtn_mc.stopDrag();
   delete _level0.onEnterFrame;
}
function stepScroll(aDirection)
{
   var _loc2_ = undefined;
   var _loc1_ = undefined;
   if(aDirection == "up")
   {
      _loc1_ = _level0.scrollBtn_mc._y - _level0.scrollBtn_mc._height;
      if(_loc1_ < _level0.minBtnY)
      {
         _loc1_ = _level0.minBtnY;
         _loc2_ = 0;
      }
   }
   else if(aDirection == "dn")
   {
      _loc1_ = _level0.scrollBtn_mc._y + _level0.scrollBtn_mc._height;
      if(_loc1_ > _level0.maxThrow)
      {
         _loc1_ = _level0.maxThrow;
         _loc2_ = _level0.overflow;
      }
   }
   if(_loc1_ != undefined)
   {
      _level0.scrollBtn_mc._y = _loc1_;
      if(_loc2_ == undefined)
      {
         _loc2_ = Math.ceil((_loc1_ - _level0.minBtnY) * _level0.scrollRatio);
      }
      _level0.sendScrollEvent(_loc2_);
   }
}
var scrollVisible = false;
var scrollActive = false;
var viewHeight;
var contentHeight;
var overflow;
var maxThrow;
var minBtnY = 1;
var maxBtnY;
var minBtnHeight = 16;
var scrollRatio;
var proportionalBtn;
var lastScroll = 0;
this.hitArea = this.hitArea_mc;
this.hitArea_mc._alpha = 0;
scrollBtn_mc.onPress = function()
{
   _level0.activateBtnDrag();
};
scrollBtn_mc.onRelease = function()
{
   _level0.deactivateBtnDrag();
};
scrollBtn_mc.onReleaseOutside = function()
{
   _level0.deactivateBtnDrag();
};
hitArea_mc.onRelease = function()
{
   if(_level0._ymouse < _level0.scrollBtn_mc._y)
   {
      _level0.stepScroll("up");
   }
   else if(_level0._ymouse > _level0.scrollBtn_mc._y + _level0.scrollBtn_mc._height)
   {
      _level0.stepScroll("dn");
   }
};
this.hideScrollbar();
this.stop();