Deprecate old methods and make methods always take QgsSldExportContext.
Add capacity to QgsSldExportContext to collect export errors and
warnings.
The old API had no way to reliably report errors/warnings during
export to users.
Eg server layer title, abstract, etc, and deprecate the related
methods at the QgsMapLayer level
This should avoid accidental creep of these specifically server-related
properties into wider use, and help disambiguate them from the
standard layer metadata properties
The old behaviour was always to just redraw the layer, without
refreshing data. This was by design, as the feature was originally
developed to allow animated layers which needed to be regular,
quickly redrawn.
But there's also a use case for automatically refetching layer
data on a regular interval too. So now we expose a choice
of mode for the automatic refresh for users to decided which
is appropriate for their requirements.
The options are:
- "Reload Data": The layer will be completely refreshed. Any cached
data will be discarded and refetched from the provider. This mode
may result in slower map refreshes.
- "Redraw Layer Only": This mode is useful for animation or when
the layer's style will be updated at regular intervals. Canvas
updates are deferred in order to avoid refreshing multiple times
if more than one layer has an auto update interval set.
The changes are all wrapped up in a new reusable widget, so that
we can easily expose this setting for non vector/raster layers
if we want to in future.
Fixes https://github.com/qgis/QGIS/issues/39830
* load layers in parallel threads when opening project
* parallel loading by default and settingsin advanced settings
* fix freezing when no layer supports parallel loading
* clean leftover
* fix unwanted remove and typo
* typo
* fix flake8
* load OGR metadata under global mutex
* Revert "load OGR metadata under global mutex"
This reverts commit adcaf9e66ca432ee35143c45af2b383108770a63.
* remove parallel loading capability for OGR
* start application in server test
* import start_app
* fix flake8
