trunk: incorrect rendering of switch elements (rev >= 12532)

[su_v]

A file (attached) containing a <switch> element like this:

        <switch allowReorder="yes">
            <text systemLanguage="en">en</text>
            <text systemLanguage="de">de</text>
            <text systemLanguage="es">es</text>
            <text systemLanguage="fr">fr</text>
            <text systemLanguage="it">it</text>
            <text>other</text>
        </switch>

renders as expected with Inkscape 0.48.4 and trunk rev <= 12531. With rev >= 12532, the <switch> element without 'systemLanguage' attribute (content: "other") is rendered on top of an element selected based on the correctly detected system language.

Tested on OS X 10.7.5 by launching inkscape from the command line:
$ LANG=en_EN.UTF-8 inkscape testcase.svg
$ LANG=de_DE.UTF-8 inkscape testccase.svg

The <switch> renders as expected in Firefox 25.0, Chromium 33.0.1705.0 (234154) and Squiggle (Batik 1.7).

The test case was taken from bug #1249423 (which AFAICT is about a different issue since the user doesn't see any content of any element of the <switch> object).

[su_v (suv-lp)]

Screenshot of test case, rendered in r12786 with system language fr_FR
(the last element is differently colored to better visualized the overlaid objects).

[Markus Engel (engelmarkus)]

I was missing some "virtuals" there, causing the wrong method to be called. Try the attached patch.

[su_v (suv-lp)]

Patch tested successfully with r12790 on OS X 10.7.5.

[Markus Engel (engelmarkus)]

Fixed in r12794.