[dvipdfmx] missing annotation rectangle if the box contains no glyph

[Shunsaku Hirata]

> And what happens if there are more than one of such a \special inside
> a bann/eann. E.g. imagine a link (perhaps even going over two lines)
> with a number of \phantom inside:
>
> \special{pdf:bann ...}
> \phantom{hello} world \phantom{some more} text!
> \special{pdf:eann ...}
>
> If we add the \special to the \phantom, then there will be more than
> one such \special and additionally also normal text.
>
> Will it then be able to figure out the annotation area?

Yes the annotation area will be determined correctly as far as
correct sizes are given to pdf:xann. When dvipdfmx encounters
pdf:xann the annotation area grows by the amount specified.

Dvipdfmx just add an area specified by pdf:xann to the current
annotation area it is calculating. There are no problems if multiple
\phantom are used and line breaks occur.


Thanks,
Shunsaku Hirata