* detect SIP version to add DefaultDocstringSignature directive
SIP doesn't handle any kind of preprocessing, so there's no better solution than configuring the SIP files from CMake.
SIP 4.19.7+ supports %DefaultDocstringSignature to prepend auto-generated Python signature to existing Docstrings
which cannot run in background tasks
This is not fantastic UX, but we have lots of constraints here:
- The algorithm dialog itself cannot be made modal. There's child
widgets (such as the point and extent parameter widgets) which
interact with the main QGIS window.
- There is no reliable way in Qt to make a dialog modal after
it's shown (e.g. make it modal only when the algorithm is
running). Trust me - I've tried everything, and all approaches
break with some corner case.
- For non-background algorithms, we must have processEvents calls
in order to show the algorithm feedback and progress to users,
and detect cancel button clicks. Yet these processEvents calls
means that users can interact with other parts of QGIS, e.g.
removing layers from a project, and other operations which
could cause the algorithm to crash. So we MUST have some modal
dialog in order to block interactions outside of allowing
the cancel button clicks/progress repainting.
I've tried many approaches, but this is the only one which
works reliably...
Individual actions in the contextmenu of the attributetable and the relationeditorwidget.
It's unlink and delete feature in the relationeditorwidget.
It's delete feature in the attributetable (form view)
the issue was that widget wrapper was using parent QDateTimeEdit::dateTimeChanged signal. It was connected both internally to QgsDateTimeEdit::changed and in the form to detect changes. When QgsAttributeForm was recreating the updated feature it was calling QgsDateTimeEdit::value() before changed() could update the value (i.e. setting mIsNull to false).
fix#17790
the widget now uses a special value text to display NULL rather than painting a QLineEdit on top
a press on the spinbox buttons (non-calendar mode) is catch to set to current date to avoid starting at the minimum date
Run clang-tidy modernize-use-override to remove all the redundant
virtual keywords from overridden methods, and add some missing
overrides.
Another benefit is that this has also added the overrides
on destructors, which will cause a build failure if a base
class is missing a virtual destructor.
