being redrawn/updated in the background
Gives immediate visual feedback to users that the current appearance
of those items are outdated and to wait while they update.
This change adds a new "feature filter" option alongside the
existing feature limit and invalid geometry handling options
available for all vector inputs to processing layers.
It allows users to enter an expression to subset the layer dynamically
when running the tool, avoiding the need for separate steps to
set layer filters or create layer subsets.
Sponsored by City of Canning
Instead of limiting layout legend filtering to a single linked map,
this change permits legends to be filtered instead by multiple
linked maps. It is designed to accomodate the use case where
a layout has multiple maps, potentially at different scales
and showing different extents, and a single legend is required
which includes all symbols visible across all the maps.
Sponsored by City of Canning
(This setting can sometimes unwantedly occur when using the same
profile across sessions of newer to very old QGIS versions)
The option is a misleading, as it's actually setting the global
thread limit for the entire QGIS application. If we allow this
to be set to a limit of 1 thread, then deadlocks
occur from the QImage internals in unpredictable ways.
Conversion between relative and absolute paths when reading/writing project files
has been inconveniently done in subclasses of QgsMapLayer in encodedSource() and
decodedSource() methods, with a lot of provider specific code.
This is a refactoring to finally fix this - there is a new pair of functions added
to QgsProviderMetadata and QgsProviderRegistry:
- absoluteToRelativeUri()
- relativeToAbsoluteUri()
This new pair of functions delegates the actual conversion between absolute and
relative path to provider code - where it belongs.
The existing code from encodedSource() and decodedSource() functions has been moved
to providers. Unit tests were added to confirm the existing behavior.
There should be no change of behavior apart from removal of old compatibility code
for WMS provider for projects from QGIS < 1.9 (10 years ago).
