Just noticed this while changing from Debian/Stretch to freshly released Debian/Buster: dolphin and konquerer in Buster now use QT5 design as well (as did kwrite in Stretch already) but even in Strech I wasn't able to use doubleclicks in the file open/save dialog of kwrite to switch directories. All it did was select the item clicked uppon. So basicly activate_item_on_single_click=0 in ~/.config/qt5ct/qt5ct.conf does not have the exected function of allowing activate on doubleclick. I never understood what "activate_item_on_single_click=1" was supposed to procduce either, the only thing that has worked in Strech or Buster is activate_item_on_single_click=2 to sucessfully enforce single click activation. So I'll have to stick whith single cklicks until I figure out what to change. Is there a stylesheet value I could use to enforce the double click ? I noticed in ticket #12 the option
QPlatformTheme::ItemViewActivateItemOnSingleClick: return true;
enforces single click when it wasn't implemented, AFAIR the new default in KDE5 is: use doubleclick if not told otherwise. See: https://forum.kde.org/viewtopic.php?f=223&t=128669
Any thoughts on what I can change in qt5ct to get doubleclicks back?
solved! that was all me inadvertantly setting the double click interval to 100ms without noticing the negative effect. Setting it back to 400ms and double clicks work fine.