These are the symbol layer classes where there's no special logic
required relating to feature rendering and features are rendered
one-by-one, with no sub symbols.
Optimise the logic used when the new geometry backend for
selective masking is in effect:
Whenever its SAFE, instead of calculating an "entire map" clipping
path and then applying this for every feature being rendered,
we now defer the calculation of the clipping path until we
are rendering individual features. Then, we create a clipping path
which contains ONLY the mask paths which are within the area
being drawn over.
This avoids having the entire map clipping path being used for
EVERY feature being rendered, which results in huge PDF/SVG
exports when masks are in effect, and instead results in
clipping paths which are confined just to a sensible area
around each rendered feature.
In some complex test projects this reduces the PDF export
size by a factor of 0.01!! (and results in PDFs/SVGs which
open much quicker in viewers and editors, and don't grind
their operation to a halt).
Populating the style library from the database can be a time
consuming process, especially if a user has many symbols
present in their library.
But for many standalone scripts, and for qgis_process, the
style database may not be required.
Let's defer initialization of it until it's actually required,
saving the startup cost in qgis_process and 3rd party scripts.
On my system with a style database containing ~700 items this
cuts down qgis_process startup times by around 25%
This allows users to control the width and height of the fill
pattern indepently, allowing for stretched raster fills in the
horizontal or vertical directions
Sponsored by North Road, thanks to SLYR
This adds a new line symbol type which renders lines using a
fill symbol. The interior of the line is drawn using any standard
QGIS fill symbol, allowing for lines filled with gradients, line
hatches, etc.
Sponsored by North Road, thanks to SLYR
alter the handling of symbol layers
These differ from Qgis::SymbolLayerFlag in that
Qgis::SymbolLayerFlag flags are used to reflect the inbuilt properties
of a symbol layer type, whereas Qgis::SymbolLayerUserFlag are optional,
user controlled flags which can be toggled for a symbol layer.
Add a flag `DisableSelectionRecoloring` which can be set for
symbol layers which prevents the layer from being recolored to
the render context selection color even when the feature
being rendered is selected
This provides a mechanism for an individual symbol layer to
avoid the forced recolor of selected features.
