[Adobe-source-devel] Widget Parenting Issues

[Tom P. <tpi...@ad...>]

Hi All,

While digging into my Qt implementation of the widgets library, I've noticed
that a widget's parent appears to be set after the underlying platform
widget itself is created. On MacOS this is not a problem because a control
can be initially created without a parent. However, the existing Windows
implementation uses some kind of 'invisible parent' member as an initial
parent when a control is created. In Qt, like on Windows, a widget needs a
parent at creation time, so I'm wondering if I will need a similar
'invisible parent' mechanism for my Qt implementation. Does Eve somehow rely
upon setting the parent after a widget is initially created? Is the sole
purpose of the display_t object to provide a way to set the widget's parent
hierarchy? Will the parent hierarchy ever change for a given Eve layout
after the initial layout is created?

Thanks,

Tom