__init__.py

@@ -24,6 +24,8 @@ bl_info = {
 }
 
 import importlib
+from bpy.utils import register_class, unregister_class
+from typing import List
 
 from . import smart_weight_transfer
 from . import force_apply_mirror
@@ -32,6 +34,7 @@ from . import weight_paint_context_menu
 from . import vertex_group_operators
 from . import vertex_group_menu
 from . import rogue_weights
+from . import util
 
 # Each module is expected to have a register() and unregister() function.
 modules = [
@@ -41,14 +44,61 @@ modules = [
 	weight_paint_context_menu,
 	vertex_group_operators,
 	vertex_group_menu,
-	rogue_weights
+	rogue_weights,
+	util
 ]
 
-def register():
+
+def register_unregister_modules(modules: List, register: bool):
+	"""Recursively register or unregister modules by looking for either
+	un/register() functions or lists named `registry` which should be a list of 
+	registerable classes.
+	"""
+	register_func = register_class if register else unregister_class
+
 	for m in modules:
-		importlib.reload(m)
-		m.register()
+		if register:
+			importlib.reload(m)
+		if hasattr(m, 'registry'):
+			for c in m.registry:
+				try:
+					register_func(c)
+				except Exception as e:
+					un = 'un' if not register else ''
+					print(f"Warning: CloudRig failed to {un}register class: {c.__name__}")
+					print(e)
+
+		if hasattr(m, 'modules'):
+			register_unregister_modules(m.modules, register)
+
+		if register and hasattr(m, 'register'):
+			m.register()
+		elif hasattr(m, 'unregister'):
+			m.unregister()
+
+
+def register():
+	register_unregister_modules(modules, True)
+	
+	print("Registering Easy Weight Hotkeys")
+	util.register_hotkey('paint.weight_paint'
+		,hotkey_kwargs = {'type': 'LEFTMOUSE', 'value': 'PRESS'}
+		,key_cat = 'Weight Paint'
+		,space_type = 'VIEW_3D'
+		,mode = 'NORMAL'
+	)
+	util.register_hotkey('paint.weight_paint'
+		,hotkey_kwargs = {'type': 'LEFTMOUSE', 'value': 'PRESS', 'ctrl' : True}
+		,key_cat = 'Weight Paint'
+		,space_type = 'VIEW_3D'
+		,mode = 'INVERT'
+	)
+	util.register_hotkey('paint.weight_paint'
+		,hotkey_kwargs = {'type': 'LEFTMOUSE', 'value': 'PRESS', 'shift' : True}
+		,key_cat = 'Weight Paint'
+		,space_type = 'VIEW_3D'
+		,mode = 'SMOOTH'
+	)
 
 def unregister():
-	for m in modules:
-		m.unregister()
+	register_unregister_modules(modules, False)

rogue_weights.py

@@ -17,6 +17,7 @@ All functionality can be found in the Sidebar->EasyWeight->Weight Islands panel.
 
 # TODO:
 # UIList: Filtering options, explanations as to what the numbers mean. Maybe a warning for Calculate Islands operator when the mesh has a lot of verts or vgroups.
+# Take the ProgressTracker class from Dependency Graph add-on and use it to give user feedback on weight island calculation progress.
 
 class VertIndex(PropertyGroup):
 	index: IntProperty()

util.py

@@ -0,0 +1,21 @@
+import bpy
+
+def register_hotkey(bl_idname, hotkey_kwargs, *, key_cat='Window', space_type='EMPTY', **op_kwargs):
+	wm = bpy.context.window_manager
+	addon_keyconfig = wm.keyconfigs.addon
+	if not addon_keyconfig:
+		# This happens when running Blender in background mode.
+		return
+	keymaps = addon_keyconfig.keymaps
+
+	km = keymaps.get(key_cat)
+	if not km:
+		km = keymaps.new(name=key_cat, space_type=space_type)
+	if bl_idname not in km.keymap_items:
+		kmi = km.keymap_items.new(bl_idname, **hotkey_kwargs)
+	else:
+		kmi = km.keymap_items[bl_idname]
+
+	for key in op_kwargs:
+		value = op_kwargs[key]
+		setattr(kmi.properties, key, value)