coll obj + fast ng access

core/nodeslicer/nodes/inputs.py

@@ -32,6 +32,50 @@ class SLICENODE_InputObject(InputNode):
     input_type = "Object"
     bl_icon = "OBJECT_DATA"
 
+@register_class
+class SLICENODE_CollectionObjects(SliceNode):
+    bl_label = "Collection Objects"
+
+    collection: bpy.props.PointerProperty(
+        name="Collection",
+        type=bpy.types.Collection,
+        update=notify_tree_changed
+    ) # pyright: ignore[reportInvalidTypeForm]
+
+    def init(self, context):
+        self._update_outputs()
+
+    def update(self):
+        super().update()
+        self._update_outputs()
+
+    def draw_buttons(self, context, layout):
+        assert layout
+        layout.prop(self, "collection", text="")
+
+    def _update_outputs(self):
+        if not self.collection:
+            self.outputs.clear()
+            return
+
+        objs = [obj for obj in self.collection.objects if obj.type == 'MESH']
+        expected_names = [obj.name for obj in objs]
+
+        # Remove outputs that are no longer in the collection
+        to_remove = [o for o in self.outputs if o.name not in expected_names]
+        for o in to_remove:
+            self.outputs.remove(o)
+
+        # Add new outputs
+        for name in expected_names:
+            if name not in self.outputs:
+                self.add_output("SLICESOCK_ObjectRo", name, identifier=name)
+
+    def evaluate_output(self, socket_name: str, **kwargs) -> Any:
+        if self.collection and socket_name in bpy.data.objects:
+            return bpy.data.objects[socket_name]
+        return None
+
 @register_class
 class SLICENODE_InputSettings(InputNode):
     input_type = "Settings"

core/nodeslicer/sockets.py

@@ -44,8 +44,7 @@ class ReadonlySocket():
     def draw(self, context: Any, layout: Any, node: Any, text: str | None):
         return self._draw_as_ro(context, layout, node, text)  # pyright: ignore[reportAttributeAccessIssue]
 
-@register_class
-class SLICESOCK_Object(InputNodeSocket):
+class SLICESOCK_ObjectCommon(InputNodeSocket):
     bl_label = "Object"
 
     value: NfPointerProperty(  
@@ -55,6 +54,10 @@ class SLICESOCK_Object(InputNodeSocket):
     ) # pyright: ignore[reportInvalidTypeForm]
     bl_color = (0.9, 0.7, 0.2, 1.0)
 
+@register_class
+class SLICESOCK_ObjectRo(ReadonlySocket, SLICESOCK_ObjectCommon): ...
+@register_class
+class SLICESOCK_Object(SLICESOCK_ObjectCommon): ...
 
 class SLICESOCK_Float_Common(InputNodeSocket):
     bl_label = "Float"

core/nodeslicer/tree.py

@@ -124,6 +124,11 @@ def depsgraph_update_handler(scene, depsgraph):
                         node.sync_sockets()
                     except Exception:
                         pass
+                elif node.bl_idname == "SLICENODE_CollectionObjects" and hasattr(node, "_update_outputs"):
+                    try:
+                        node._update_outputs()
+                    except Exception:
+                        pass
 
     
 @register_class
@@ -141,27 +146,33 @@ class SLICENODE_OT_GroupToggle(Operator):
     bl_description = "Enter or exit the selected node group"
     bl_options = {'REGISTER', 'UNDO'}
 
+    node_name: bpy.props.StringProperty() # pyright: ignore[reportInvalidTypeForm]
+
     @classmethod
     def poll(cls, context):
         assert context.space_data
         return (context.space_data.type == 'NODE_EDITOR' and 
                 context.space_data.tree_type == "SLICETREE_NodeTree")  # pyright: ignore[reportAttributeAccessIssue]
 
-    def execute(self, context) -> set[OperatorReturnItems]:
+    def execute(self, context) -> set['OperatorReturnItems']:
         space = context.space_data
         path = getattr(space, 'path', None)
         if not path:
             return {'CANCELLED'}
             
-        # If we are inside a group, popping returns us to the parent
-        # We want to exit if: 1. No node is selected, OR 2. We press Tab while editing inside a group
-        active_node = context.active_node
+        tree = getattr(space, 'edit_tree', None)
         
-        # If we have an active group node, we try to enter it
-        if active_node and active_node.bl_idname == "SLICENODE_Group":
-            group_tree = getattr(active_node, "slicer_tree", None)
+        target_node = None
+        if self.node_name and tree and self.node_name in tree.nodes:
+            target_node = tree.nodes[self.node_name]
+        else:
+            target_node = context.active_node
+        
+        # If we have a target group node, we try to enter it
+        if target_node and target_node.bl_idname == "SLICENODE_Group":
+            group_tree = getattr(target_node, "slicer_tree", None)
             if group_tree:
-                path.append(group_tree, node=active_node)
+                path.append(group_tree, node=target_node)
                 return {'FINISHED'}
         
         # Otherwise, if we are nested, we pop out
@@ -171,6 +182,7 @@ class SLICENODE_OT_GroupToggle(Operator):
             
         return {'CANCELLED'}
 
+
 @register_class
 class SLICENODE_OT_GroupMake(Operator):
     bl_idname = "slicenode.group_make"
@@ -451,6 +463,7 @@ class SLICENODE_MT_DataInput(Menu):
         layout.operator("node.add_node", text="Vector").type = "SLICENODE_InputVector"
         layout.separator()
         layout.operator("node.add_node", text="Object").type = "SLICENODE_InputObject"
+        layout.operator("node.add_node", text="Collection Objects").type = "SLICENODE_CollectionObjects"
         layout.operator("node.add_node", text="Settings").type = "SLICENODE_InputSettings"
         layout.operator("node.add_node", text="PrusaSlicer Config").type = "SLICENODE_PrusaslicerConf"
         layout.separator()
@@ -542,6 +555,8 @@ class SLICENODE_MT_Group(Menu):
         layout.operator("node.group_ungroup", text="Ungroup")
         layout.operator("slicenode.group_toggle", text="Edit Group")
         layout.separator()
+        layout.operator("node.add_node", text="Add Group Node").type = "SLICENODE_Group"
+        layout.separator()
         layout.operator("node.add_node", text="Group Input").type = "NodeGroupInput"
         layout.operator("node.add_node", text="Group Output").type = "NodeGroupOutput"
 

infra/blender/blender_slice_nodes_generic.py

@@ -179,6 +179,7 @@ def _get_current_group_node() -> bpy.types.Node | None:
 @register_class
 class SLICENODE_Group(bpy.types.NodeCustomGroup, AutoBlIdName):
     bl_label = "Group"
+    bl_icon = 'NODETREE'
     
     def _tree_updated(self, context):
         try:
@@ -260,7 +261,11 @@ class SLICENODE_Group(bpy.types.NodeCustomGroup, AutoBlIdName):
 
     def draw_buttons(self, context, layout):
         assert layout
-        layout.prop(self, "slicer_tree", text="")
+        row = layout.row(align=True)
+        row.prop(self, "slicer_tree", text="")
+        if self.slicer_tree:
+            op = row.operator("slicenode.group_toggle", text="", icon='NODETREE')
+            op.node_name = self.name
 
     def draw_label(self):
         if self.slicer_tree: