One correction on my part. It's IUIComponent that is important. IFlexDisplayObject is for skins so you can call move(), setActualSize() and get a measuredWidth and measuredHeight from them. The allows for the polymorphic behavior when laying out skins and components. Your code can see the same thing and does not have to differentiate between a component or skin (Shape).
The IFlexDisplayObject gives an impression of the core DisplayObject as well. The ILayoutManagerClient interface allows the layoutManager to use nesting and call validation on the components in the queue. Mike On Thu, Oct 16, 2008 at 2:11 PM, Michael Schmalle <[EMAIL PROTECTED]>wrote: > And to put the icing on the cake... > The deal is the LayoutManager loves the IUIComponent interface which has > another buddy called IFlexDisplayObject. > > IFlexDisplayObject is instrumental in coupling measurements plus nesting > levels that the layout manager needs to do it's queue sorting when laying > out display objects. > > Navigators need Container children because Container is hard coded into > them all. :) They have implemented IContainer and added some members to it. > I hope they get all these concrete references out of the framework > eventually. > > If the Flex framework is going to be really successful in the long run, > everything needs to be renderers/factories and interfaces. I got three years > on riding Alex's coattails in this area. ;-) > > Like how about IScrollContainer... this is in my framework now. > > Mike > > > > On Thu, Oct 16, 2008 at 2:06 PM, Tracy Spratt <[EMAIL PROTECTED]>wrote: > >> I think that is correct. Quoting Alex, "Navigator children must be >> Containers, Container children must be IUIComponents, and UIComponent >> children can be anything." >> >> Tracy >> >> >> ------------------------------ >> >> *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On >> Behalf Of *Amy >> *Sent:* Wednesday, October 15, 2008 11:36 PM >> *To:* flexcoders@yahoogroups.com >> *Subject:* [flexcoders] Re: Efficiency and objects in the display list >> >> >> >> --- In flexcoders@yahoogroups.com <flexcoders%40yahoogroups.com>, "Tracy >> Spratt" <[EMAIL PROTECTED]> wrote: >> > >> > Container children must be UIComponents. You will need to add the >> > sprites to a UIComponent first. >> >> I think technically there's just an interface that has to be >> implemented on whatever you add (IFlexDisplayObject? IUIComponent?). >> If you extend Sprite or whatever and implement whichever one is needed, >> you could add it to a container. >> >> -Amy >> >> >> > > > > -- > Teoti Graphix, LLC > http://www.teotigraphix.com > > Teoti Graphix Blog > http://www.blog.teotigraphix.com > > You can find more by solving the problem then by 'asking the question'. > -- Teoti Graphix, LLC http://www.teotigraphix.com Teoti Graphix Blog http://www.blog.teotigraphix.com You can find more by solving the problem then by 'asking the question'.
