Add a GimpSymmetry::get_transform() virtual function, and a
corresponding gimp_symmetry_get_transform() function, which return
the brush transform corresponding to a given symmetry stroke in
terms of the rotation angle and reflection flag (in contrast to
gimp_symmetry_get_operation() which returns the same transforation
in terms of a GeglNode). This would allow us to simplify, fix, and
improve the painting-code perofmrnace in the next commits.
Implement GimpSymmetry::get_transform() in its various subclasses.
(cherry picked from commit e0f2a6f1be)
... edges for MyPaint brush.
Adding the concept of "stateful" symmetry when a tool needs to make sure
of corresponding stroke numbers and orders while painting (i.e. stroke N
at time T+1 is the continuation of stroke N at time T). This is the case
for the MyPaint brushes and the ink tool.
Mitch gets a better idea to deal with soft limits (i.e. min/max values
different from the property min/max) applied to a spin scale created by
gimp_prop_spin_scale_new().
So let's just remove the current implementation (using locale data on
the GimpConfig object). The symmetry spin scales are back with crazy
huge maximums, which makes quite a horrible GUI, but this is only
temporary until Mitch commits his new implementation.
Currently a GimpSpinScale created with gimp_prop_spin_scale_new() will
use the associated property's lower and upper values.
Unfortunately these generic values may not be always relevant and we
may want to construct a spin scale UI adapted to the current image.
For instance, several symmetry painting have a x/y property which has
to stay within the image's dimension, but changing the property's lower
and upper values would affect the symmetry on the class level (i.e. for
all similar symmetries on all images).
Let's allow setting data on object with key "property-name:min|max" to
provide locale min/max values specifically for this object.
This is used only on the symmetry dock for now, but could be used as
well on GEGL op UIs.
Remove GimpSymmetry::get_settings() and instead tag the properties that
should have a GUI with the GIMP_SYMMETRY_PARAM_GUI flag. Also use plain
g_object_class_install_property() because that allows for separate nick
and blurb. Finally, use gimp_prop_gui_new() to generate the GUI,
