lazy loading profiles

core/nodeslicer/nodes.py

@@ -82,19 +82,28 @@ class SLICENODE_PrusaslicerConf(SliceNode):
             cls._cache = LocalCache()
         return cls._cache
 
+    def ensure_profiles_loaded(self):
+        cache = self.get_cache()
+        if not cache.profiles:
+            # Use a path relative to the addon directory
+            import os
+            addon_dir = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
+            profiles_path = os.path.join(addon_dir, "profiles", "prusaslicer")
+            if os.path.isdir(profiles_path):
+                cache.load([profiles_path])
+            
+            if self.printer_id != 'NONE':
+                cache.evaluate_compatibility({self.printer_id}, set(cache.vendors))
+
     def update_profiles(self, context):
         cache = self.get_cache()
-        if not cache.profiles and self.config_path:
-            abs_path = bpy.path.abspath(self.config_path)
-            if os.path.isdir(abs_path):
-                cache.load([abs_path])
-        
         if self.printer_id != 'NONE':
             cache.evaluate_compatibility({self.printer_id}, set(cache.vendors))
         
         notify_tree_changed(self, context)
 
     def get_printers(self, context):
+        self.ensure_profiles_loaded()
         cache = self.get_cache()
         items = [('NONE', "None", "No printer selected", 'NONE', 0)]
         for i, (k, p) in enumerate(cache.printer_profiles.items(), 1):
@@ -102,6 +111,7 @@ class SLICENODE_PrusaslicerConf(SliceNode):
         return items
 
     def get_filaments(self, context):
+        self.ensure_profiles_loaded()
         cache = self.get_cache()
         items = [('NONE', "None", "No filament selected", 'NONE', 0)]
         
@@ -122,6 +132,7 @@ class SLICENODE_PrusaslicerConf(SliceNode):
         return items
 
     def get_prints(self, context):
+        self.ensure_profiles_loaded()
         cache = self.get_cache()
         items = [('NONE', "None", "No print selected", 'NONE', 0)]
         
@@ -166,12 +177,6 @@ class SLICENODE_PrusaslicerConf(SliceNode):
     def get_print_enum(self): return self._get_enum_idx(self.get_prints(None), self.print_id)
     def set_print_enum(self, value): self._set_enum_idx(self.get_prints(None), value, 'print_id')
 
-    config_path: NfStringProperty(
-        name="Profiles", 
-        subtype='DIR_PATH', 
-        update=update_profiles
-    ) # pyright: ignore[reportInvalidTypeForm]
-
     printer_enum: NfEnumProperty(
         name="Printer",
         items=get_printers,
@@ -198,13 +203,14 @@ class SLICENODE_PrusaslicerConf(SliceNode):
 
     def draw_buttons(self, context, layout):
         assert layout
-        layout.prop(self, "config_path")
+        self.ensure_profiles_loaded()
         layout.prop(self, "printer_enum")
         if self.printer_id != 'NONE':
             layout.prop(self, "filament_enum")
             layout.prop(self, "print_enum")
 
     def evaluate_output(self, socket_name: str, **_kwargs) -> Any:
+        self.ensure_profiles_loaded()
         if self.printer_id == 'NONE' or self.filament_id == 'NONE' or self.print_id == 'NONE':
             return None
         
@@ -910,10 +916,10 @@ class SLICENODE_PrinterList(SliceNode):
 
     def _refresh(self):
         import json
-        if not self.config_path:
+        if not self.printers_json_path:
             return
 
-        abs_path = bpy.path.abspath(self.config_path)
+        abs_path = bpy.path.abspath(self.printers_json_path)
         if not os.path.exists(abs_path):
             return
 
@@ -950,13 +956,13 @@ class SLICENODE_PrinterList(SliceNode):
     def update_config(self, context):
         self._refresh()
 
-    config_path: NfStringProperty(name="Config File", default="", subtype='FILE_PATH', update=update_config) # pyright: ignore[reportInvalidTypeForm]
+    printers_json_path: NfStringProperty(name="Config File", default="", subtype='FILE_PATH', update=update_config) # pyright: ignore[reportInvalidTypeForm]
 
     def init(self, context):
         pass
 
     def draw_buttons(self, context, layout):
-        layout.prop(self, "config_path")  # pyright: ignore[reportOptionalMemberAccess]
+        layout.prop(self, "printers_json_path")  # pyright: ignore[reportOptionalMemberAccess]
 
     def evaluate_output(self, socket_name: str, **_kwargs) -> Any:
         self._refresh()

core/nodeslicer/tree.py

@@ -41,11 +41,8 @@ def get_referenced_objects(node, visited=None):
 _is_updating = False
 _tree_changed = False
 
-@persistent
+def tree_update_handler(scene, depsgraph):
-def depsgraph_update_handler(scene, depsgraph):
+    global _tree_changed
-    global _is_updating, _tree_changed
-    if _is_updating:
-        return
 
     # Names of objects that have changed
     updated_object_names = {update.id.name for update in depsgraph.updates if isinstance(update.id, bpy.types.Object)}
@@ -92,6 +89,14 @@ def depsgraph_update_handler(scene, depsgraph):
                     finally:
                         _is_updating = False
 
+@persistent
+def depsgraph_update_handler(scene, depsgraph):
+    global _is_updating, _tree_changed
+    if _is_updating: return
+
+    tree_update_handler(scene, depsgraph)
+    
+
 @register_class
 class SLICETREE_NodeTree(NodeTree):
     bl_idname = "SLICETREE_NodeTree"

profiles/prusaslicer/Link to Configs

@@ -0,0 +1 @@
+/home/nicolas/Workspace/Design Projects/3d Print Library/Configs