[Rev 03] RFR: 8130738: Add tabSize property to Text and TextFlow

[Scott Palmer]

On Thu, 12 Dec 2019 19:48:37 GMT, Scott Palmer <swpalmer at openjdk.org> wrote:

>> In that case, I recommend just doing the API get/set tests for `TextFlow` without creating a `Scene` or `Stage`. This won't need anything from the `StubToolkit`.
> 
> In my attempts to address the issue with StubTextLayout I discovered bugs.  TextFlow is NOT properly overriding the tabSize of the Text nodes.  If you set the Text node tab size later, the layout reacts and adjusts to the tabSize of the Text node even though it is contained in a TextFlow.  Whichever node changes the tabSize last affects the layout.   I'm going to have to study this more, but this change isn't ready at this point.

Looks like I was missing a check for isSpan() in the invalidated method of the tabSize property of Text.  I've fixed StubTextLayout to work with TextFlow now.

-------------

PR: https://git.openjdk.java.net/jfx/pull/32