Emily Gouge ha scritto: > I'm following up from the irc chat earlier - to try determine what is the > "correct" behavior for the > SLDParser with regards to preserving whitespace in mixed content elements. > My understanding is that > mixed type elements are supposed to collapse all white-space and convert them > to a single space. > > So this would imply that that Label element associated with Text Symbolizers > should collapse all > white-space. I'm currently looking at the SLDParser in Geotools and it has a > comment that states > "the label parser should preserve whitespaces".
Here there is a tension between the standard behaviour, and a useful one. The schema mandated behaviour is, as you say, to collapse whitespace. The useful behaviour would be to keep them as is, allowing people to embed newlines and thus labels. > Before I try to wrongly update something can somebody confirm that > whitespaces should be collapsed > and not preserved? If so, I'll create a test case and try to make it work. My take on this is that yes, we should collapse and be standard compliant. We also probably want to create a couple new filter functions, newline() and space(numSpaces) that allow people to explicitly embed spaces in a label. This one is catchy thought, since that is but a first step, the second one would be to make the renderer honour newlines: the java2d text drawing commands do not do text layout, and handling newlines falls into the layout issues. That would require some major changes in the way we do draw labels, it's not going to happen overnight. Cheers Andrea ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
