On 18 Jun 2009, at 13:49, cymoon wrote:
Hi Jan
do you have an idea how i could simulate something like the Antenna
House
overflow extension.
<snip />
So I was thinking about an extension for Fop. Looking at the source
I did
not knew where to start. Do you have an idea how this could be
implemented?
I certainly don't want to discourage you, however, I don't think it
will be trivial to implement.
If you're sure you want to have a go, then you'll need to look at
layoutmgr.BlockLayoutManager, layoutmgr.inline.LineLayoutManager and/
or layoutmgr.inline.TextLayoutManager.
Reason why I don't think it is trivial, is that it will require
multiple passes. You would first have to go through the line-breaking
using the standard font-size, and see if the total combined height of
the line-boxes would exceed the available space. If so, then you would
have to redo the line-breaking using a smaller font-size, and repeat
this loop until the totality of the line-boxes fit into the reference
area. Only after the font-size has been decreased sufficiently to fit
all the lines, can the LineLM returns its element-list to the parent
BlockLevelLM.
Currently, FOP's layoutengine only has very limited restarting
facilities, so you would be moving into unexplored territory... That
said, if you're seriously interested in adding this functionality, I
invite you to subscribe to fop-dev@ and follow-up there, as this is a
bit off-topic for simple FOP usage.
At any rate, thanks very much for the interest.
Hope to read you on fop-dev@ soon.
Regards
Andreas
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