Actionscript 3 :: Applying Transformation On Multiple Object Which Are Inside A Single Container

I am developing a paint board application using flash builder. User can draw some shapes objects(ellipse, circle, rectangle). I want to implement grouping/un grouping feature some like ms-word in my application. I group multiple objects by putting them inside a container(UIComponent). Now i apply resizing to container and it resize well. I am using a free object handler API to apply selection handle over the container. I want to resize and reposition all children with respect to container changed size. Every thing goes well until all children inside container are having rotation = 0. But if there is any child which is having rotation >0 and <0 things goes worse. The child resize but not in a proper manner. I stretch the parent container width and it increase the height of rotated child. Is there any way using Matrix class or something else to transform all children in same direction and same ratio respective to container?