moving out from http://blog.xfce.org/2011/10/getting-rid-of-anoyances/#comments I like the idea of custom actions. This way we can call imagemagick to resize/rotate current image. After calling an action, application should reload image. Regarding UI side, i believe custom actions could be defined in preferences dialog or just separate plain text file will be ok.
To support custom-actions, there should also be a way to implement a dialog-window that can be used to insert variables. Like new dimensions when resizing, or the image-format when converting between different image-formats. I think that rules-out custom-actions and calls for the need to implement a plugin interface.
-- GitLab Migration Automatic Message -- This bug has been migrated to xfce.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.xfce.org/apps/ristretto/-/issues/4. Please create an account or use an existing account on one of our supported OAuth providers. If you want to fork to submit patches and merge requests please continue reading here: https://docs.xfce.org/contribute/dev/git/start#gitlab_forks_and_merge_requests Also feel free to reach out to us on the mailing list https://mail.xfce.org/mailman/listinfo/xfce4-dev