fill fit and center one display object to another
function centerTo(_object:DisplayObject, _ref:DisplayObject):void{
if (_object != null){
var _wString:String = "width";
var _hString:String = "height";
if (_ref == stage){
_wString = "stageWidth";
_hString = "stageHeight";
trace("stage");
}
var _refWidth:Number = _ref[_wString];
var _refHeight:Number = _ref[_hString];
_object.x = (_refWidth - _object.width) / 2;
_object.y = (_refHeight - _object.height) / 2;
}
}
function fitTo(_object:DisplayObject, _ref:DisplayObject):void{
if (_object != null){
var _wString:String = "width";
var _hString:String = "height";
if (_ref == stage){
_wString = "stageWidth";
_hString = "stageHeight";
}
var _refWidth:Number = _ref[_wString];
var _refHeight:Number = _ref[_hString];
var _objectRatio:Number = _object.width / _object.height;
var _refRatio:Number = _refWidth / _refHeight;
if (_refRatio>=_objectRatio){
_object.x = 0;
_object.width = _refWidth;
_object.height = _object.width / _objectRatio;
_object.y = (_refHeight - _object.height) / 2;
}
else
{
_object.y = 0;
_object.height = _refHeight;
_object.width = _object.height * _objectRatio;
_object.x = (_refWidth - _objectRatio.width) / 2;
}
}
}
function fillTo(_fitDo:DisplayObject, _referenceDo:DisplayObject):void{
if (_object != null){
var _wString:String = "width";
var _hString:String = "height";
if (_ref == stage){
_wString = "stageWidth";
_hString = "stageHeight";
}
var _refWidth:Number = _ref[_wString];
var _refHeight:Number = _ref[_hString];
_object.x = (_refWidth - _object.width) / 2;
_object.y = (_refHeight - _object.height) / 2;
_object.width = _refWidth;
_object.height = _refHeight;
}
}