/// <summary>
/// Set the popup menu for this item.
/// </summary>
/// <param name="popup">
/// popupmenu window to attach to this item
/// </param>
/// <param name="addAsChild"></param>
protected void SetPopupMenuImpl(PopupMenu popup, bool addAsChild = true)
{
// is it the one we have already ?
if (popup == _popup)
{
// then do nothing;
return;
}
// keep the old one around
var oldPopup = _popup;
// update the internal state pointer
_popup = popup;
_opened = false;
// is there already a popup ?
if (oldPopup != null)
{
RemoveChild(oldPopup);
// should we destroy it as well?
if (oldPopup.IsDestroyedByParent())
{
// then do so
WindowManager.GetSingleton().DestroyWindow(oldPopup);
}
}
// we are setting a new popup and not just clearing. and we are told to add the child
if (popup != null && addAsChild)
{
AddChild(popup);
}
Invalidate(false);
}
/// <summary>
/// Set the popup menu for this item.
/// </summary>
/// <param name="popup">
/// popupmenu window to attach to this item
/// </param>
public void SetPopupMenu(PopupMenu popup)
{
SetPopupMenuImpl(popup);
}