def init(self, context):
"""
this function is triggered upon node creation,
- freezes the node
- delegates further initialization information to sv_init
- sets node color
- unfreezes the node
"""
CurrentEvents.new_event(BlenderEventsTypes.add_node, self)
ng = self.id_data
ng.freeze()
ng.nodes_dict.load_node(self)
if hasattr(self, "sv_init"):
try:
self.sv_init(context)
except Exception as err:
print('nodetree.node.sv_init failure - stare at the error message below')
sys.stderr.write('ERROR: %s\n' % str(err))
self.set_color()
ng.unfreeze()
def free(self):
"""
This method is not supposed to be overriden in specific nodes.
Override sv_free() instead
"""
self.sv_free()
for s in self.outputs:
s.sv_forget()
node_tree = self.id_data
node_tree.nodes_dict.forget_node(self)
CurrentEvents.new_event(BlenderEventsTypes.free_node, self)
if hasattr(self, "has_3dview_props"):
print("about to remove this node's props from Sv3DProps")
try:
bpy.ops.node.sv_remove_3dviewpropitem(
node_name=self.name, tree_name=self.id_data.name)
except:
print(
f'failed to remove {self.name} from tree={self.id_data.name}'
)
def insert_link(self, link):
"""It will be triggered only if one socket is connected with another by user"""
CurrentEvents.new_event(BlenderEventsTypes.add_link_to_node, self)
def update(self):
CurrentEvents.new_event(BlenderEventsTypes.monad_tree_update, self)
affected_trees = {instance.id_data for instance in self.instances}
for tree in affected_trees:
tree.update()
def insert_link(self, link):
CurrentEvents.new_event(BlenderEventsTypes.add_link_to_node, self)
def update(self):
CurrentEvents.new_event(BlenderEventsTypes.node_update, self)
self.sv_update()