On Mon, Jun 17, 2013 at 3:47 PM, Silvia Pfeiffer
<silviapfeiffer1@gmail.com>wrote:
> Also, how do you deal with the rendering problem when the future text
> is not in the render tree. For example, you render the first word in a
> centered cue. If the other words are not yet present in the render
> tree, the first word is rendered in the middle. Then successively the
> words are added, which means the text has to get re-balanced and the
> first word move successively to the left.
>
You animate tts:display between auto and none to insert/remove from render
tree. You animate tts:visibility to show/hide what is in render tree. With
a combination of these, there is no problem.