Before I make a Bug Report about it, I want to know if there is something I am not getting right - maybe a step I am skipping/missing.
In a recent Weekly Snapshot version, as per my Wishlist request, digiKam implemented a new feature in the Keyword Tags ability = the ability to apply images as thumbnails to parent tags without the need to apply the parent tags (as had always before been the case). = Thank You !
However, when I work with a group of images and then apply image thumbnails to the Keyword Tags, they stay there only so long as I am working in that particular “view” .
If I switch to a different group of images and work with different Keyword Tags, when I return to the Keyword Tags that should now display my image thumbnails that I just applied minutes ago, my thumbnails are all gone and all I see are the generic icons.
My current procedure is, as it has always been, drag an image thumbnail on top of the Keyword Tag and a menu appears = I choose Set as Tag Thumbnail and my chosen image immediately displays as that Keyword Tag’s icon.
Is there something else I should be doing to permanently “weld” the image thumbnails such that they will be there for now and all time to come ?
Thanks for reading.
I can’t reproduce the problem. Your database may be defective and the thumbnail assignment is not saved. You have often reported strange tag problems. Please also check the drive on which your databases are located for errors. A DebugView log might make it clearer.
We save the image ID for the tag to assign the thumbnail. So if the image ID no longer exists, a tag thumbnail reverts to the default. This can be the case, for example, if the image is deleted and then completely removed at some point. Or you create a copy of an image that is assigned to a tag as a thumbnail and delete it.
Thanks for the thorough explanation of how this works.
As for the unique Image ID, I am assuming this ID is different for each version of an image, i.e. the original and then each subsequent improved version will all have their own unique Image ID, right ?
So, if early in the process, I assign an early version of an image as Keyword Tag thumbnail and then move that version to a different folder where it is no longer within the digiKam realm, I have broken the chain of custody, so to speak, even though digiKam can see the next/improved version of the same picture - but with a different filename.
In other words, the image from whence the thumbnail came must remain where digiKam can see it, right; and, if I replace that image/file with an improved version (new name), digiKam does not acknowledge it as being the same image and therefore defaults back to the generic icon, right ?
I had always assumed that digiKam stored little tiny thumbnail versions of the Keyword Tag thumbnails much the same as any other thumbnail database, but I guess that is not the case.
Thanks.
Correct, the image ID is a counter in the DB. Moving a images shouldn’t be a problem, at least in newer digiKam versions, the image ID stays the same. However, if the image leaves the collection, the thumbnail tag will be reset (after some time). It will remain in the DB for a while, if it is returned to the collection, it does not need to be scanned completely.