[Digikam-devel] About retrieving tags from digikam and tags properties

[Gilles Caulier]

2010/6/14 Gabriel Voicu <ping.gabi at gmail.com>:
> Hello everyone,
> I've almost completed the part where I retrieve data (country, city... for
> photos with given coordinates) from Geonames and OSM. Now, the next part
> would be to integrate in gpssync2 UI, a tree view containing tags for every
> image. This would make the user select where will the new resulted data be
> added in digikams tag hierarchy. Michael Hansen told me that the kipi
> interface should be extended.
> Can you give me some directions on how to extend kipi interface to retrieve
> tags from digikam?

To retrieve digiKam tags with a kipi-plugin, just use this way :

http://lxr.kde.org/source/extragear/graphics/kipi-plugins/flickrexport/flickrwindow.cpp#561

You checkout KIPI::ImageInfo from an item using url :

http://lxr.kde.org/source/extragear/graphics/kipi-plugins/flickrexport/flickrwindow.cpp#536

There are attribute list for it. "tags" are digiKam tags as well :

http://lxr.kde.org/source/extragear/graphics/kipi-plugins/flickrexport/flickrwindow.cpp#567

How it work :

digiKam kipi interface include a simple mechanism which can be
extended without to touch libkipi. You can get special attribute from
database here :

http://lxr.kde.org/source/extragear/graphics/digikam/utilities/kipiiface/kipiimageinfo.cpp#125

or set attribute there :

http://lxr.kde.org/source/extragear/graphics/digikam/utilities/kipiiface/kipiimageinfo.cpp#165

To delete an attribute :

http://lxr.kde.org/source/extragear/graphics/digikam/utilities/kipiiface/kipiimageinfo.cpp#236

or clear all :

http://lxr.kde.org/source/extragear/graphics/digikam/utilities/kipiiface/kipiimageinfo.cpp#271

In fact, use the right attribute names to manage it in these methods.
To extend attribute management, it's easy.

No need to touch libkipi.

Gilles Caulier