Hey Frans,
2012/2/1 Frans Meulenbroeks <fransmeulenbro...@gmail.com>:
>> As part of learning Wt I've been playing with the treeview example.
>> One of the buttons is Toggle Stripes. This one does toggle
>> alternatingRowColors.
>> According to the doc this gives the alternate color in the css.
>> However the example has no .css file; and loading the stylesheet is
>> commented out:
>> TreeViewApplication.C: //app->useStyleSheet("treeview.css");
The toggling stripes is implemented in the theme-based stylesheets.
The stripes are implemented using images (because there is not really
any other option in IE6) that are statically generated. There are
scripts in "resources/themes/default/stripes" and
"resources/themes/polished/stripes" that generate these and that can
be used modified to create images with alternate colors. You then can
either fork the entire theme, or override the CSS selectors for the
WTreeView only.
It's a bit clumsy (admitted) but there is nothing else that can be
done without requiring a dependency like graphicsmagick/imagemagick in
Wt which is currently optional. We might revise it in the future to
switch to something pure client-side (CSS + canvas) or using
dynamically generated images.
Regards,
koen
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