Hi everybody,
long time no blogging. Time to fix this bug.
So...without any long prologues - (hold your breath now) - it's working! (Say WOW™). But how well does it work you ask? Pretty good! Ok ok, let's get some overview.
You open some image in digiKam's image editor, you add some filters, do some transformations, use some color-altering-stuff until you're satisfied with your creativity. Then you simply close the editor, autosaving kicks in, and bam, you have new version of your original image, which stayed completely untouched. Available versions can be then viewed/switched in the new sidebar widget (see pic below). The sidebar allows you to display all the available versions either as a simple list or as a tree, which is basically the same list with padded entries to reflect the relations between the images. Later it will also be possible to do some file operations in the sidebar, like Copy/Move/Remove etc. In the main view with thumbnails, (sub)versions are now marked by an (ugly) icon as you can see in the screenshot below, but I'm looking forward to hear your ideas about how to mark them in some better way (of course it will be on/off switchable). Let us hear your ideas or see your mockups!
This is a companion discussion topic for the original entry at https://www.digikam.org/news/2010-08-18_gsoc_how_is_digikam_s_non-destructive_editing_this_time_with_pictures/