public override void updateBoundRect()
{
Vector2 minPos = new Vector2();
Vector2 maxPos = new Vector2();
if(_textureSelfRect.width!=0 && _textureSelfRect.height!=0){
Rect textureRect = _transform.getBoundRect(_textureSelfRect);
minPos.x = textureRect.x;
minPos.y = textureRect.y;
maxPos.x = textureRect.width+textureRect.x;
maxPos.y = textureRect.height+textureRect.y;
}else{
minPos.x = 999999;
minPos.y = 999999;
maxPos.x = -999999;
maxPos.y = -999999;
}
// loop though children to get the bound area of children
foreach(DisplayObject child in _childList){
Rect childBoundRect = _transform.getBoundRect(child.boundRect);
if(childBoundRect.x < minPos.x){
minPos.x = childBoundRect.x;
}
if(childBoundRect.x+childBoundRect.width > maxPos.x){
maxPos.x = childBoundRect.x+childBoundRect.width;
}
if(childBoundRect.y < minPos.y){
minPos.y = childBoundRect.y;
}
if(childBoundRect.y+childBoundRect.height > maxPos.y){
maxPos.y = childBoundRect.y+childBoundRect.height;
}
}
// get boundRect, boundRect is related with it's parent
_boundRect.x = minPos.x;
_boundRect.y = minPos.y;
_boundRect.width = maxPos.x-minPos.x;
_boundRect.height = maxPos.y-minPos.y;
if(_parent!=null && _parent.transformInTree!=null){
_boundRectInTree = _parent.transformInTree.getBoundRect(_boundRect);
}
if(_textureSelfRect.width!=0 && _textureSelfRect.height!=0){
minPos.x = _textureSelfRect.x;
minPos.y = _textureSelfRect.y;
maxPos.x = _textureSelfRect.width+_textureSelfRect.x;
maxPos.y = _textureSelfRect.height+_textureSelfRect.y;
}else{
minPos.x = 999999;
minPos.y = 999999;
maxPos.x = -999999;
maxPos.y = -999999;
}
foreach(DisplayObject child in _childList){
if(child.boundRect.x < minPos.x){
minPos.x = child.boundRect.x;
}
if(child.boundRect.x+child.boundRect.width > maxPos.x){
maxPos.x = child.boundRect.x+child.boundRect.width;
}
if(child.boundRect.y < minPos.y){
minPos.y = child.boundRect.y;
}
if(child.boundRect.y+child.boundRect.height > maxPos.y){
maxPos.y = child.boundRect.y+child.boundRect.height;
}
}
_originalWidth = maxPos.x-minPos.x;
_originalHeight = maxPos.y-minPos.y;
_width = _originalWidth*_scaleX;
_height = _originalHeight*_scaleY;
}
