22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181 | class BlendLinkLoader(plugin.BlenderLoader):
"""Link assets from a .blend file."""
product_types = {
"model", "camera", "rig",
"layout", "animation", "workfile"
}
representations = {"blend"}
label = "Link Blend Hierarchy"
icon = "code-fork"
color = "orange"
def process_asset(
self,
context: dict,
name: str,
namespace: Optional[str] = None,
options: Optional[Dict] = None,
) -> Optional[List]:
filepath = self.filepath_from_context(context)
# Load a single Collection from the .blend file
# TODO: Disallow loading same collection?
folder_name = context["folder"]["name"]
product_name = context["product"]["name"]
unique_number = plugin.get_unique_number(folder_name, product_name)
group_name = plugin.prepare_scene_name(
folder_name, product_name, unique_number
)
namespace = namespace or f"{folder_name}_{unique_number}"
data = {
"context": context,
"name": name,
"namespace": namespace,
"group_name": group_name,
"filepath": filepath,
"options": options
}
loaded_collection = self.get_loaded_collection(**data)
options = options or dict()
if options.get("addOverride", False):
local_copy = add_override(loaded_collection)
if local_copy:
loaded_collection = local_copy
container_collection = containerise(
name=name,
namespace=namespace,
nodes=[loaded_collection],
context=context,
loader=self.__class__.__name__,
)
return container_collection
def exec_update(self, container: Dict, context: Dict):
"""Update the loaded asset. """
repre = context["representation"]
collection = container["node"]
if collection.children:
library = self._get_library_from_collection(collection.children[0])
filepath = self.filepath_from_context(context)
filename = os.path.basename(filepath)
if library:
library.name = filename
library.filepath = filepath
library.reload()
# refresh UI
bpy.context.view_layer.update()
# Update container metadata
metadata_update(
collection, {"representation": str(repre["id"])}
)
def exec_remove(self, container: Dict) -> bool:
"""Remove existing container from the Blender scene."""
collection = container["node"]
target_name = f"{container['namespace']}_{container['name']}"
if collection.children:
library = self._get_library_from_collection(collection.children[0])
if library:
bpy.data.libraries.remove(library)
else:
target_collection = find_collection_by_name(target_name)
if target_collection:
for col in target_collection.children:
bpy.data.collections.remove(col)
for obj in target_collection.objects:
bpy.data.objects.remove(obj)
# Remove the container collection
bpy.data.collections.remove(collection)
target_collection = find_collection_by_name(target_name)
if target_collection:
bpy.data.collections.remove(target_collection)
target_object = find_objects_by_name(target_name)
if target_object:
bpy.data.objects.remove(target_object)
return True
def _get_library_from_collection(
self, collection: bpy.types.Collection
) -> Optional[bpy.types.Library]:
"""Get the library from the collection."""
for child in collection.children:
if child.library:
return child.library
if child.override_library and child.override_library.reference:
return child.override_library.reference.library
for child in collection.objects:
if child.library:
return child.library
if child.override_library and child.override_library.reference:
return child.override_library.reference.library
return None
def get_loaded_collection(self, **kwargs)-> bpy.types.Collection:
"""Get the loaded collection.
Returns:
bpy.types.Collection: The loaded collection.
"""
container_name = get_container_name(
kwargs.get("name"),
kwargs.get("namespace"),
kwargs.get("context"),
suffix="CON"
)
loaded_collection = bpy.data.collections.get(container_name)
scene_collection = bpy.context.scene.collection
group_name = kwargs.get("group_name")
if loaded_collection and group_name in scene_collection.children:
message = (
f"Collection {group_name} already loaded, "
f"instance to {group_name} is created instead of "
"linking new collection"
)
show_message(f"Collection {group_name} already loaded", message)
instance = bpy.data.objects.new(name=group_name, object_data=None)
instance.instance_type = 'COLLECTION'
instance.instance_collection = loaded_collection
# Link the instance to the active scene
bpy.context.scene.collection.objects.link(instance)
return loaded_collection
return load_collection(
kwargs.get("filepath"),
link=True,
group_name=group_name
)
|