KDiagram libs (KChart, KGantt) in KDE Review
Friedrich W. H. Kossebau
kossebau at kde.org
Sat Feb 7 23:29:26 GMT 2015
Calligra, Massif-Visualizer, KMyMoney (and perhaps more) make use of KDAB's
nice offer of their KDChart in the GPLv2 licensing variant. But as there are
no real public releases of KDChart, all the projects have copied a dump of
KDChart into their code repositories, updating now and then to newer versions
of KDChart. Which is anything but perfect.
To improve things, after some talk with KDABians it was decided to create a
KDE repo with a KDE-fied fork of KDChart, based on their latest Qt5ied
version. So all FLOSS Qt5-based projects have a single place to-go-to for nice
charting. Which would be centrally updated now and then. Still not perfect,
but an improvement over the current situation.
To meet the KDE repo requirements, KDAB has also extended the license to
GPLv2+ for this dump :)
That repo is named "kdiagram" and has just been moved into "kdereview".
Final destination is "extragear/graphics", as other charting/diagram software
also is located there.
After the initial code dump in the repo, work has been done to convert the
buildsystem from qmake to cmake/ECM and KDE-fy the code in general. But no
real changes besides renaming/rebranding have been done to the codebase, so
this should be quickly usable by all FLOSS programs with their own copy of
KDChart so far, and just need a few s/KDChart/KChart/ etc. for adaption.
KDChart actually consists of two libraries, "kdchart" and "kdgantt", which
have been made explicitly separate libs in KDiagram, and named "kchart" and
"kgantt" there (and thus the repo "kdiagram" instead of "kchart", to not hide
the gantt lib). Not yet clear if those libs would be merged more one day, so
for now staying with a single repo, like the original, instead of splitting up
into two repos by the two libs.
Ideally a first release of kdiagram (libs kchart, kgantt) is done before the
porting work of Calligra to Qt5 starts somewhen end of February, so that port
can rely on the then external libs from the start. For that the schedule now
tagging first release: February 16th
moving to "Extragear/Graphics": February 22th
release first release: February 22th
Please do a
git clone kde:kdiagram
and give the libs some build testing (also go for all the compiled example and
test apps) and review, especially the buildsystem. And perhaps prepare your
FLOSS apps to use it already. This should give you KChart resp. KGantt in your
find_package(KChart "2.6.0" REQUIRED)
find_package(KGantt "2.6.0" REQUIRED)
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