protected override void PartAdded(string partName, object instance)
{
//Debug.Log("PartAdded: " + partName);
base.PartAdded(partName, instance);
if (instance == ContentGroup)
{
//Debug.Log("Part added: ContentGroup: " + ContentGroup);
if (_contentModified)
{
if (_placeHolderGroup != null)
{
for (int i = _placeHolderGroup.NumberOfChildren - 1; i >= 0; i--)
{
var child = _placeHolderGroup.RemoveChildAt(i);
ContentGroup.AddChildAt(child, 0);
}
}
}
// copy proxied values from contentGroupProperties (if set) to contentGroup
var newContentGroupProperties = new ContentGroupProperties();
if (null != _contentGroupProperties.AutoLayout)
{
ContentGroup.AutoLayout = (bool)_contentGroupProperties.AutoLayout;
newContentGroupProperties.AutoLayoutSet = true;
}
if (null != _contentGroupProperties.Layout)
{
ContentGroup.Layout = _contentGroupProperties.Layout;
newContentGroupProperties.LayoutSet = true;
}
_contentGroupProperties = newContentGroupProperties;
ContentGroup.AddEventListener(
ElementExistenceEvent.ELEMENT_ADD, ContentGroupElementAddedHandler);
ContentGroup.AddEventListener(
ElementExistenceEvent.ELEMENT_REMOVE, ContentGroupElementRemovedHandler);
if (null != _placeHolderGroup)
{
_placeHolderGroup.RemoveEventListener(
ElementExistenceEvent.ELEMENT_ADD, ContentGroupElementAddedHandler);
_placeHolderGroup.RemoveEventListener(
ElementExistenceEvent.ELEMENT_REMOVE, ContentGroupElementRemovedHandler);
_placeHolderGroup = null;
}
}
}
protected override void PartRemoved(string partName, object instance)
{
base.PartRemoved(partName, instance);
if (instance == ContentGroup)
{
ContentGroup.RemoveEventListener(
ElementExistenceEvent.ELEMENT_ADD, ContentGroupElementAddedHandler);
ContentGroup.RemoveEventListener(
ElementExistenceEvent.ELEMENT_REMOVE, ContentGroupElementRemovedHandler);
// copy proxied values from contentGroup (if explicitely set) to contentGroupProperties
ContentGroupProperties newContentGroupProperties = new ContentGroupProperties();
//if (BitFlagUtil.isSet(contentGroupProperties as uint, AUTO_LAYOUT_PROPERTY_FLAG))
if (_contentGroupProperties.AutoLayoutSet)
{
newContentGroupProperties.AutoLayout = ContentGroup.AutoLayout;
}
//if (BitFlagUtil.isSet(contentGroupProperties as uint, LAYOUT_PROPERTY_FLAG))
if (_contentGroupProperties.LayoutSet)
{
newContentGroupProperties.Layout = ContentGroup.Layout;
}
_contentGroupProperties = newContentGroupProperties;
if (_contentModified)
{
_placeHolderGroup = new Group();
_placeHolderGroup.AddEventListener(
ElementExistenceEvent.ELEMENT_ADD, ContentGroupElementAddedHandler);
_placeHolderGroup.AddEventListener(
ElementExistenceEvent.ELEMENT_REMOVE, ContentGroupElementRemovedHandler);
}
ContentGroup.Layout = null;
}
}