At 2008-04-29 20:44 -0500, John Cavalieri wrote:
What should happen when a block with
keep-together.within-line="always" has text which is longer than one
line?
It goes off the end of the line because you asked it all to keep together.
Should the text wrap?
Nope.
For example the following flow:
<fo:flow flow-name="xsl-region-body" line-height="1.2em"
font-size="10pt" font-family="Times">
<fo:block keep-together.within-line="always">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Duis
ullamcorper fringilla ligula. Donec cursus, justo quis dapibus
vehicula, erat lacus faucibus mi, vel accumsan nibh arcu at sem. Sed
adipiscing gravida lectus. Suspendisse non nunc id justo consectetuer
aliquam. Vivamus.
</fo:block>
</fo:flow>
The spec says keep-together.within-line "...imposes a keep-condition
.... with context consisting of the line-areas". And since a
line-area, according to the spec, is a "special type of block-area" it
seems to me that the text should wrap.
It is a special type of block area because of its border and padding
properties and how it is stacked and located by the starting edge of
the content-rectangle. Nothing about the line's area constrains the
text if you specify that the text must keep together.
As a result, in my stylesheets when I specify a keep condition on a
block I always use keep-together.within-column= because just
keep-together= implies keep-together.within-line=. Note that
keep-together.within-column= is the same as
keep-together.within-page= on a one-column page, so I rarely (if
ever) use keep-together.within-page=.
The spec explicitly says in 4.8 "A keep-together condition is
satisfied if all areas generated and returned by the formatting
object are descendants of a single context-area." ... since the
context area is a line, that implies no line breaks or wraps are
allowed or it wouldn't then be satisfying the keep.
I hope this helps.
. . . . . . . . . . Ken
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