internal symbol clones
Rendering symbols is a NON-CONST operation, which can permanently
alter the symbol instance (e.g. via changes made by the symbol
or symbol layer's startRender methods.).
This makes debugging super complex - because methods which look
like they are just generating previews of symbols can actually
change the original symbol instances, resulting in permanent changes
to a layer's style.
Refs #19910 (specifically, me pulling my hair out trying to deduce
seemingly random changes to layer's symbols)
Instead of requiring clients to generate temporary file names themselves,
(or use the cryptic "memory:" string!), this PR adds a static constant
QgsProcessing.TEMPORARY_OUTPUT
If a layer/sink output parameter is set to QgsProcessing.TEMPORARY_OUTPUT,
then the temporary output filename will be generated automatically at
algorithm run time. This means callers don't need to mess around with
finding appropriate temporary folders and paths.
Another benefit is that TEMPORARY_OUTPUT is stored in the processing
history, so if you re-run a previous algorithm which was set to
output to a temporary file, it no longer tries to use that same
previous temporary path and instead generates a new one.
This PR continues the work started in PR #8951.
This commit replaces occurences of #include "qgis.h" by #include "qgis_sip.h",
where possible = when files only depends on SIP_XXX features.
use with ArcGIS feature server requests
Some servers are locked down to only allow requests with a specific
referer URL - this allows us to open them in QGIS (but it requires
users to manually determine the correct referer string and populate
this setting for the connection -- we cannot do this for them!)
This algorithm cannot output cross-validation results and topographic
parameters simultaneously, hence two tools needed. Thanks to Pedro Venâncio
for finding this and proposing a fix.
information from a QNetworkReply in a container which is safe
and cheap to pass between threads
(QNetworkReplys are QObject based, so not safe to access or
pass between threads)
Use this new class in a thread safe QgsNetworkAccessManager::finished
signal, which is fired on the main thread QgsNetworkAccessManager instance
when responses are finished from any thread
qgswkbptr.h is included indirectly by a large number of source files.
So this commit does the following:
- remove #include "qgsapplication.h" from qgswkbptr.h, and copy-paste the swap_endian
function where it's used.
- add the missing #include "qgsapplication.h" in other files
The rationale for this change is:
- qgswkbptr.h doesn't really needs QgsApplication, since it only used swap_endian.
We don't need to add a fake dependency on QgsApplication on every (indirect) "includers"
of qgswkbptr.h
- qgsapplication.h depends on qgsconfig.h which itself changes quite often (on every git op
at least). Before this change, a 'git commit' would trigger a rebuild of about 3500 files.
With this change we're down to ~700.
(fix#20586).
Without this parameter it is not possible to remove collars surrounding
input raster which may overlap with other input rasters. As this is very
frequent case algorithm is useless without such parameter. To keep API
compatibility new parameter is optional and not used by default.
