I just installed Picasa in my Ubuntu 14.04 using Wine following this How would I install Picasa 3.9? until step 3 cause i don't want to connect to my Picasa account. I want just to use Picasa photo viewer. So, i want to make Picasa image viewer as my default image viewer. I tried this in the Default applications, but I can't find an entry for Picasa there. How can I make Picasa my default image viewer ?
You can use the command
mimeopen, in a terminal go to the folder where you have some pictures with extensions, you should do it for every extension. Suppose for picture named image.jpg. Run the command:
mimeopen -d image.jpg
You will get a popup menu, where you can see some options, here is sample of my apps:
$ minemimeopen -d e.jpg Please choose a default application for files of type image/jpeg 1) Wine Internet Explorer (wine-extension-jpe) 2) Wine Internet Explorer (wine-extension-jfif) 3) gThumb (gthumb) 4) Pinta (pinta) 5) Image Viewer (gpicview) 6) Shutter (shutter) 7) Firefox Web Browser (firefox) 8) Shotwell Viewer (shotwell-viewer) 9) GIMP Image Editor (gimp) 10) Other...
AS you can notice you could see some wine apps so if you find picasa choose it, else choose other(10) and type the command that runs your picasa. It looks like