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import bpy
class GP_OT_install_brush_pack(bpy.types.Operator):
bl_idname = "gp.import_brush_pack"
bl_label = "Import texture brush pack"
bl_description = "import Grease Pencil brush pack from Grease Pencil addon"
bl_options = {"REGISTER", "INTERNAL"}
def execute(self, context):
from pathlib import Path
blendname = 'Official_GP_brush_pack_V1.blend'
blend_fp = Path(__file__).parent / blendname
print('blend_fp: ', blend_fp)
cur_brushes = [b.name for b in bpy.data.brushes]
with bpy.data.libraries.load(str(blend_fp), link=False) as (data_from, data_to):
# load brushes starting with 'tex' prefix if there are not already there
data_to.brushes = [b for b in data_from.brushes if b.startswith('tex_') and not b in cur_brushes]
# Add holdout
if 'z_holdout' in data_from.brushes:
data_to.brushes.append('z_holdout')
brush_count = len(data_to.brushes)
## force fake user for the brushes
for b in data_to.brushes:
b.use_fake_user = True
if brush_count:
self.report({'INFO'}, f'{brush_count} brushes installed')
else:
self.report({'WARNING'}, 'Brushes already loaded')
return {"FINISHED"}
def register():
bpy.utils.register_class(GP_OT_install_brush_pack)
def unregister():
bpy.utils.unregister_class(GP_OT_install_brush_pack)
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