KDE Core/Platform 11/Eliminating Duplication With Qt: Difference between revisions
< KDE Core | Platform 11
| Line 6: | Line 6: | ||
* Must start now to get what we need into Qt5 or will miss the chance | * Must start now to get what we need into Qt5 or will miss the chance | ||
* Freeze kdelibs4, but not too hard may need changes or can backport some KDE5 stuff | * Freeze kdelibs4, but not too hard may need changes or can backport some KDE5 stuff | ||
* Not everything needs to be in Qt 5.0, but do need to be structured so we can cleanly add new features in 5.1, 5.2 | |||
* Licence: | * Licence: | ||
** Need review by eV lawyers to reassure contributors they don't lose rights, are fully informed of consequences, start asap as may take time | ** Need review by eV lawyers to reassure contributors they don't lose rights, are fully informed of consequences, start asap as may take time | ||
| Line 20: | Line 21: | ||
* Review progress at Desktop Summit, if good progress then commit to full process | * Review progress at Desktop Summit, if good progress then commit to full process | ||
* Need class-by-class review: | * Need class-by-class review: | ||
** Work with dependencies team, need common | ** Work with dependencies team, need common notes somewhere | ||
** Will need expert advice on each class, we can't know every reason for duplication | ** Will need expert advice on each class, we can't know every reason for duplication | ||
** Find if a Qt equivalent (not always obvious!) | ** Find if a Qt equivalent (not always obvious!) | ||
| Line 33: | Line 33: | ||
*** Remove K class, use Q class completely | *** Remove K class, use Q class completely | ||
*** Remove K class, use Q class with new K helper class | *** Remove K class, use Q class with new K helper class | ||
* | |||
== Specific classes/modules == | |||
Some obvious stuff from off top of our head: | |||
* QtLocation: Move QGeoCoordinate and poss QGeoAddress from QtLocation to QtCore as fundamental data type | |||
* KUrl / QUrl | |||
* KDateTime / QDateTime | |||
* KLocale / QLocale | |||
* KAction / QAction | |||
* KSSL* | |||
* KCodec | |||
* KlineEdit / QlineEdit | |||
* KComboBox / QComboBox | |||
* KCompleter | |||
* ... | |||
Revision as of 08:43, 3 June 2011
Notes
- A Good Thing (TM), lt's do it
- Must start now to get what we need into Qt5 or will miss the chance
- Freeze kdelibs4, but not too hard may need changes or can backport some KDE5 stuff
- Not everything needs to be in Qt 5.0, but do need to be structured so we can cleanly add new features in 5.1, 5.2
- Licence:
- Need review by eV lawyers to reassure contributors they don't lose rights, are fully informed of consequences, start asap as may take time
- Create list of known contributors who have/will agree to Qt license so we can reuse their code if appropriate (will still need explicit agreement per contribution?)
- Need to be very careful don't copy code of those who oppose code donations
- Much depends on success of OpenGov
- All contributions from KDE must be seen as for better of Qt not just KDE, we need to be pragmatic
- If get in early with quality contributions can establish position of trust and authority
- Start small with some test cases to prove process, gain trust:
- KUrl/QUrl - Very simple case with minimal change required
- KLineEdit/QLineEdit(?) - More involved case
- QDateTime - Test for working with Qt Brisbane to develop common requirements
- Printing - Big test case for major changes + maintainership
- Review progress at Desktop Summit, if good progress then commit to full process
- Need class-by-class review:
- Work with dependencies team, need common notes somewhere
- Will need expert advice on each class, we can't know every reason for duplication
- Find if a Qt equivalent (not always obvious!)
- Determine why KDE version exists
- Determine if Qt version is already good enough (may have improved since K class created)
- Determine if we really still need any extra features
- Need to consider features, quality, performance
- Reach a conclusion:
- Keep K class entirely
- Keep K class but move some features to Qt
- Remove K class, use Q class completely
- Remove K class, use Q class with new K helper class
Specific classes/modules
Some obvious stuff from off top of our head:
- QtLocation: Move QGeoCoordinate and poss QGeoAddress from QtLocation to QtCore as fundamental data type
- KUrl / QUrl
- KDateTime / QDateTime
- KLocale / QLocale
- KAction / QAction
- KSSL*
- KCodec
- KlineEdit / QlineEdit
- KComboBox / QComboBox
- KCompleter
- ...