DO NOT REPLY [Bug 48468] New: Issues with Squiggle's DOM Viewer highlight shape and node finder

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=48468

           Summary: Issues with Squiggle's DOM Viewer highlight shape and
                    node finder
           Product: Batik
           Version: 1.8
          Platform: PC
        OS/Version: Windows Vista
            Status: NEW
          Severity: minor
          Priority: P2
         Component: SVG Viewer
        AssignedTo: batik-dev@xmlgraphics.apache.org
        ReportedBy: helder.magalhaes@gmail.com


While participating in a batik-users thread [1], I discovered a set of (minor?)
issues while playing with Batik Squiggle's DOM Viewer. I'm creating this bug in
order to 1) act as a reminder to try better tracking them down whenever
possible and 2) act like a list of known-issues in case someone else also
happens to bump at something weird while using the DOM viewer.


Maybe this could/should be broken into several bugs (one per issue) but, given
that these issues should be fairly to fix, managing multiple issues can become
too much of a burden (as already discussed a couple of times in batik-dev). :-)



1. Works with simple cases [1], seem to choke with more complex ones [2].



Nevertheless, in the second test case, I'm also seeing unresolved namespace
weirdness (the "a0" hints towards that)which I thought it had already been
fixed in trunk:



<a0:g xmlns:a0="http://www.w3.org/2000/svg" style="fill: #ffffff;
stroke:#000000; stroke-width:0.172">

  <a0:path d="[long path data]"/>

</a0:g>



I still haven't figured out if this is due to:

 * [3] being a more complex document;

 * [3] making heavy use of cubic splines, which may be breaking the node
finder/highlighting algorithm.





2. The DOM viewer doesn't maintain state: whenever the (DOM Viewer) window is
closed and opened again, the previously highlighted items are disconnected. The
simplest approach would be clearing the set of highlighted items prior to
closing the window; another possibility would be maintaining state, for example
by hiding the window instead of closing it (not sure about the performance
implications of that).




Both issues were noticed in revision 892855, using Sun Java 1.6 update 17 on
Windows Vista SP2.


[1] http://old.nabble.com/background-for-text-td26879322.html

[2]
http://heldermagalhaes.com/stuff/svg/demos/SVGObject-HTMLCanvasInteractors/sample.svg

[3] http://croczilla.com/bits_and_pieces/svg/samples/tiger/tiger.svg

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