This property is currently only used for gimp_edit_blend() to control
how are computed distances. In the future, it could be used for more
functions making use of "gegl:distance-transform" operation, or even for
other algorithms, if relevant.
This new property obviously comes with 2 new PDB calls:
gimp_context_get_distance_metric() & gimp_context_set_distance_metric()
Add new PDB procedures gimp-context-get/set-stroke-method and honor
the new setting in gimp-edit-stroke and gimp-edit-stroke-vectors.
Internally, keep a GimpStrokeOptions around in GimpPDBContext to keep
track of the newly added PDB state, and use it for the stroke
operations instead of creating a scratch GimpStrokeOptions.
Apply heavily modified patch from Es Swartz which adds PDB API for
brush size, angle and aspect ratio, as well as a full interface for
ink. Changed to patch to add all procedures to the "context" group
instead of creating new PDB groups, properly use the new
GimpPDBContext APIs for paint options, and did some general cleanup.
(Warning, completely untested).
Initially contains antialias, feather and feather radius for the
upcoming gimp-item-to-selection preocedure. Keeping states in the
context reduces the number of parameters of procedures, and both the
state API and the API using the states can be changed/deprecated
independently. Make sure that all procedures and all plug-ins get
GimpPDBContexts instead of plain GimpContexts passed.
Michael Natterer