Blender Git Loki

Fix building with and without WITH_LINEART

Merge branch 'lanpr-under-gp' into temp-lineart-contained

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

Merge branch 'lanpr-under-gp' into temp-lineart-contained

LineArt: Proper Use of BMesh operator to remove doubles.

LineArt: Complete UI in the modifier.

Merge remote-tracking branch 'origin/lanpr-under-gp' into temp-lineart-contained

# Conflicts:
# extern/ceres/README.blender
# release/scripts/startup/bl_ui/space_userpref.py
# source/blender/blenkernel/BKE_gpencil_curve.h
# source/blender/blenkernel/BKE_gpencil_geom.h
# source/blender/blenkernel/BKE_layer.h
# source/blender/blenkernel/BKE_screen.h
# source/blender/blenkernel/intern/gpencil_curve.c
# source/blender/blenkernel/intern/layer_utils.c
# source/blender/blenloader/intern/versioning_290.c
# source/blender/draw/engines/overlay/shaders/edit_curve_point_vert.glsl
# source/blender/draw/engines/overlay/shaders/wireframe_vert.glsl
# source/blender/editors/gpencil/annotate_paint.c
# source/blender/editors/gpencil/gpencil_convert.c
# source/blender/editors/gpencil/gpencil_edit.c
# source/blender/editors/gpencil/gpencil_intern.h
# source/blender/editors/gpencil/gpencil_interpolate.c
# source/blender/editors/gpencil/gpencil_merge.c
# source/blender/editors/gpencil/gpencil_mesh.c
# source/blender/editors/gpencil/gpencil_paint.c
# source/blender/editors/gpencil/gpencil_select.c
# source/blender/editors/gpencil/gpencil_trace_ops.c
# source/blender/editors/gpencil/gpencil_utils.c
# source/blender/editors/interface/interface_panel.c
# source/blender/editors/physics/physics_pointcache.c
# source/blender/editors/space_buttons/buttons_context.c
# source/blender/editors/space_outliner/space_outliner.c
# source/blender/editors/space_view3d/view3d_placement.c
# source/blender/makesdna/DNA_userdef_types.h
# source/blender/makesrna/intern/rna_scene.c
# source/blender/makesrna/intern/rna_space.c
# source/blender/python/gpu/gpu_py_shader.c

LineArt: Merge changes

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

# Conflicts:
# release/datafiles/locale
# release/scripts/addons
# release/scripts/addons_contrib
# source/blender/blenloader/intern/versioning_290.c
# source/blender/makesdna/DNA_brush_types.h
# source/blender/makesdna/DNA_gpencil_modifier_types.h
# source/blender/makesrna/intern/rna_scene.c
# source/tools

LineArt: Ris for New APIs

GPencil: Cleanup clang format

GPencil: Fix unreported crash in some cases when duplicate a stroke

Some pointers were not initialized.

GPencil: Fix callback parameter list error

In the previous commit the bGPDframe parameter was removed, but this parameter is required to keep the same function signature.

Collections: Prevent setting scene collection color tag from rna

It should not be possible to set the scene collection's color tag
through rna. Also adds a missing notifier for setting the collection
color tag from python.

UI: Remove remaining uses of old collection icon

After rB452a1c7b3838 there were still a few cases where the old
collection icon was used in the interface. Replace these with the new
filled collection icon.

GPencil: Fix compiler warning, unused variable

GPencil: Merge GSoC curve edit mode

Differential Revision: https://developer.blender.org/D8660

This patch is the result of the GSoC 2020 "Editing Grease Pencil Strokes
Using Curves" project. It adds a submode to greasepencil edit mode that
allows for the transformation of greasepencil strokes using bezier
curves. More information about the project can be found
here: https://wiki.blender.org/wiki/User:Filedescriptor/GSoC_2020.

Cleanup: Make panel type flag names more clear

The overlap with the `Panel` flags that start with "PNL" was quite
confusing because wasn't clear which enum a flag was from. The
new names are a bit longer, but the clarity is worth it.

Cleanup: Move PanelType flag from DNA to BKE header

Since this flag isn't saved in files and PanelType itself is defined in
BKE, the flag makes more sense there.

GPencil: Remove ID from operators to fix T82597

Instead to use the ID of the object, now the parameter is an Enum with Selected object or New.

If use selected mode, the first grease pencil object selected is used. If none of the selected objects is a grease pencil object, a new object is created.

Small cleanup changes to the original patch.

Differential Revision: https://developer.blender.org/D9529