[KPhotoAlbum] Associating multiple tags with one area?

[Tobias Leupold]

> I would load all positioned tags along with their "ID", the raw coordinates
> string.
Developing it further, we actually already have the ID (of course, because we 
do need the coordinates anyway). When a tag has an "area" attribute, it's 
parsed to a QRect and passed to the database object (cf. 
XMLDB::Database::readOptions). We don't need an additional "ID" 
infrastructure, as we can use this QRect as well (e. g. for the ID->area map).

All we have to do is (apart from the GUI changes) changing the way a 
ResizableFrame object gets and holds the tag data, and of course how this data 
is put to the database instance.

The area creation is handled in AnnotationDialog::Dialog::load(), the area-to-
database conversion is done in AnnotationDialog::Dialog::writeToInfo() (at 
least I think so ;-). Putting it to the XML database and reading it out should 
"just work", as the _taggedAreas variable of the ImageInfo class is a 
QMap<QString, QMap<QString, QRect>>, where the keys are "category", "tag" and 
"area", so we don't have collisions here (kindly, the area data is a value, 
not a key).

Just have a look at the classes. I think it's possible to implement what you 
want.

As Johannes said, if you need comments or help, just ask!

Tobias