Bi-derectional text and migration from Flex 3 to Flex 4

Hi guys, Can we migrate our application from Flex 3 to Flex 4
in order to support bi-directional text? I have been reviewing the
new Text Layout Framework tutorial and I found out a set of new
components that need to be used in order to support bi-di ext.
What about the classical Flex components that we used to use
in our application? do I need to re-write my application with the
TLF components in order to support bi-di? Can’t I just set
some new properties and re-compile my application?
Please help
Thank You

For Flex 4, in addition to developing new "Gumbo" components
which have an improved skinning architecture and use TLF, the Flex
team is also planning to make it possible to have a few TLF
features such as bidirectional text in some or perhaps all of the
Halo components from Flex 3. These components currently use a
Player class known as TextField. A class called TLFTextField is
being developed which uses TLF to implement the same APIs as
TextField, and therefore can replace TextField in the Halo
components.
This work is underway but not yet complete. Only a few
components are currently working with this approach and there is no
way at the moment to turn on bidirectionality. We are also starting
to develop a UI-mirroring feature to allow the entire user
interface -- not just the text -- to become right-to-left.
So what you need -- the ability to write Arabic and Hebrew
applications using only legacy Halo components -- is planned for
Flex 4.
Gordon Smith
Adobe Flex SDK Team

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