mtpaint's desktop file uses URL instead of file when opening

[Rudolph P]

== Steps to reproduce ==
 1. Using pcmanfm, right click on an image
 2. Select "Open with mtpaint" or if that's not an option, select "Open with.." and select mtpaint from the "Graphics" section

== Expected behaviour ==
mtpaint opens the image

== Actual behaviour ==
mtpaint displays an error message "Cannot open file"

== Workaround ==
Edit /usr/share/applications/mtpaint.desktop and change the Exec line from:
Exec=mtpaint %U
to
Exec=mtpaint %f

== Affected Versions ==
3.40-3

[Rudolph P (roprop)]

Please see attached file/patch implementing the suggested fix

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "Patch implementing fix" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

I can confirm this to be true in the 3.40-3 version which specifically had a change from Debian:

  * MIME-type information was added in mtpaint.desktop (Closes: #774502).

That said, imagining an SRU for so small and so easy a change is unlikely, so we'll likely not see this fixed in any released versions of *buntu.

Furthermore, the primary maintainers of LXDE, the Lubuntu team, have moved on to LXQt as of 18.10 and with it a whole different set of apps. The last version of Lubuntu with mtpaint in it was 18.04 which will be supported until April 2021.

Additionally, it seems that mtpaint hasn't been updated in years (2 or 7 depending on where you're looking). I'd pretty much call it dead. Therefore, I would really suggest looking into some other option for your needs.

[Łukasz Batek (wabi-one)]

I can't change mtpaint %U to mtpaint %f