On 05 Dec 2008, at 12:57, Georg Datterl wrote:
Hi Georg,
I'm fooling around with linespaces at the moment and I get a value
for leading. Leading for PDFs means, as I'm sure everybody knows,
the baseline-to-baseline distance between two lines.
XSL-FO has the concept of 'half-leading'. (see XSL-FO 1.1 -- 4.5 Line
areas, and)
First I tried to translate it to attribute line-height, but that's
not quite the same, because leading is ignored if the text has only
one line. A high value for leading in PDF would give me much space
between two lines, but doesn't say anything about the distance to
the previous block, whereas a high value for line-height does say
something about the distance to the previous block.
I have a feeling that line-height.conditionality might be helpful,
but I'm not quite sure. Basically, I have to position a text in a
block based on a value distanceToPreviousBlock and a value
distanceToNextLineIfThereIsALineInThisBlock.
Do I understand correctly that you mean you can already achieve what
you need, apart from the first line in a block? If so, then I guess
fo:initial-property-set would be your answer. Unfortunately not yet
implemented in FOP, but theoretically, that would allow you to set a
smaller value for line-height for the first line-area generated by a
block.
Another idea may be to play with negative, forced space-before on the
block that generates the lines, which could generate the effect of the
first line being 'drawn towards' the preceding block.
HTH!
Andreas
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