A lot has happened again around KDE Itinerary since the last two month summary. A particular focus area at the moment is achieving “Akademy readiness”, that is being able to properly support trips to KDE Akademy in Milan early September, understanding the tickets of the Italian national railway is a first step into that direction.
The timeline view in KDE Itinerary now highlights the current element(s), to make it easier to find the relevant information. Active elements also got an “are we there yet?” indicator, a small bar showing the progress of the current leg of a trip, taking live data into account.
Another clearly visible addition can be found in the trip group summary elements in the timeline. Besides expanding or collapsing the trip, these elements now also show information concerning the entire trip when available, such as the weather forecast, or any power plug incompatibility you might encounter during the trip.
Less visible but much more relevant for “Akademy readiness” was adding support for Trenitalia tickets. That required some changes and additions to how we deal with barcodes, as well as an (ongoing) effort to decode the undocumented binary codes used on those tickets. More details can be found in a recent post on this subject.
A lot has also happened behind the scenes:
- The ongoing effort to promote KContacts and KCalCore
yields some improvements we benefit from directly as well,
such as the Unicode diacritic normalization applied during the country name detection in KContacts (reducing the database size and
detecting country names also with slight spelling variations) or the refactoring of
KCalCore::Attendee(which will make those types easily accessible by extractor scripts).
- The train reservation data model now contains the booked class, which is a particular useful information when you don’t have a seat reservation and need to pick the right compartment.
- The RCT2 extractor (relevant e.g. for DSB, NS, ÖBB, SBB) got support for more variations of seat reservations and more importantly now preserves the ticket token for ticket validation with the mobile app.
- The train station knowledge database is now also indexed by UIC station codes, which became necessary to support the Trenitalia tickets.
- Extractor scripts got a new utility class for dealing with unaligned binary data in barcodes.
We also finally found the so far illusive mapping table for the station identifiers used in SNCF barcodes, provided by Trainline as Open Data. This yet has to find its way into Wikidata though, together with more UIC station codes for train stations in Italy. Help welcome :)
Keeping an eye on performance while the system becomes more complex is always a good idea, and a few things have been addressed in this area too:
- The barcode decoder so far was exposed more or less directly to the data extractors, resulting in possibly performing the expensive decoding work twice on the same document, e.g. when both the generic extractor and one or more custom extractors processed a PDF document. Additionally, each of those were applying their own heuristics and optimizations to avoid expensive decoding attempts where they are unlikely to succeed. Those optimizations now all moved to the barcode decoder directly, together with a positive and negative decoding result cache. That simplifies the code using this, and it speeds up extraction of PDF documents without a context (such as a sender address) by about 15%.
- Kirigami’s theme color change compression got further optimized, which in the case of KDE Itinerary avoids the creation of a few hundred QTimer objects.
- The compiled-in knowledge database got a more space-efficient structure for storing unaligned numeric values, cutting down the size of the 24bit wide IBNR and UIC station code indexes by 25%.
Fixes & Improvements
There’s plenty of smaller changes that are noteworthy too of course:
- We fixed a corner case in KF5::Prison’s Aztec encoder that can trigger UIC 918.3 tickets, producing invalid barcodes.
- The data extractors for Brussels Airlines, Deutsche Bahn and SNCF got fixes for various booking variants and corner cases.
- Network coverage for KPublicTransport increased, including operators in Ireland, Poland, Sweden, parts of Australia and more areas in Germany.
- More usage of emoji icons in KDE Itinerary got replaced by “real” icons, which fixes rendering glitches on Android and produces a more consistent look there.
- Lock inhibition during barcode scanning now also works on Linux.
- PkPass files are now correctly detected on Android again when opened as a
- The current trip group in the KDE Itinerary timeline is now always expanded, which fixes various confusions in the app when “now” or “today” don’t exist due to being in a collapsed time range.
- Multi-day event reservations are now split in begin and end elements in the timeline as already done for hotel bookings.
- Rental car bookings with a drop-off location different from the pick-up location are now treated as location changes in the timeline, which is relevant e.g. for the weather forecasts.
- Extracting times from PkPass boarding passes now converts those to the correct timezone.
A big thanks to everyone who donated test data again, this continues to be essential for improving the data extraction.
If you want to help in other ways than donating test samples too, see our Phabricator workboard
for what’s on the todo list, for coordinating work and for collecting ideas. For questions and suggestions, please feel free
to join us on the KDE PIM mailing list or in the
#kontact channel on Matrix or Freenode.