How can I ungroup applications separately in unity launcher?
Solution 1:
The way links show up and act in Unity (or most modern Linux-desktops for that matter) is directed by the .desktop files (under: /usr/share/applications/ or for a single user under ~/.local/share/applications/) For more on that see: http://standards.freedesktop.org/desktop-entry-spec/latest/. Another good guide on using the .desktop file to change the behaviour is http://themagicofscience.blogspot.com/2011/05/unity-adding-items-to-dock.html (inclidung further references)
As standard setting, wine creates e.g. for Picasa (in my case in a file "~/.local/share/applications/wine-Programme-Picasa 3-Picasa 3.desktop") the command
Exec=env WINEPREFIX="/home/[user]/.wine" wine C:\\\\windows\\\\command\\\\start.exe /Unix /home/aj/.wine/dosdevices/c:/users/Public/Startmenü/Program Files/Picasa\\ 3/Picasa\\ 3.lnk
that has as a result that all wine-apps appear under a single icon in the launcher. To change this behaviour you have to create a new .desktop file for picasa or change the existing one so that wine directly launches the application's executable.
so the command should be (don't ask me, why ~ or %USERNAME% don't work here)
Exec=wine "/home/[user]/.wine/drive_c/Program Files/Google/Picasa3/Picasa3.exe"
To create the link and the accompaning icons I followed the rather complicated guide under the bug report "Unable to add Wine applications to Unity launcher"
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/704187/comments/3 whole report: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/704187/
But with the aforementionedguides you might even create the .desktop file yourself or at least adapt it to your needs once you have the correct basic setting.
Added benefit for this is that you see the application icon in the launcher (not just wine) AND can pin the wine app to the launcher.
HTH Andreas