rigify/__init__.py

@@ -699,6 +699,19 @@ def register():
     id_store.rigify_types = CollectionProperty(type=RigifyName)
     id_store.rigify_active_type = IntProperty(name="Rigify Active Type",
                                               description="The selected rig type")
+    id_store.rigify_layers_mode = EnumProperty(
+        name="Layer Buttons Mode",
+        items=(
+            ("OPERATOR", "Keys", "Accept key combinations with click (No drag click)", 'EVENT_SPACEKEY', 0),
+            ("PROPERTY", "Drag", "Allow drag click (No key combinations)", 'MOUSE_LMB_DRAG', 1),
+        ),
+        default="OPERATOR",
+        description="Choose between modifier keys or drag click"
+    )
+    id_store.rigify_layers_info = BoolProperty(
+        name="Display Layer Info",
+        default=False
+    )
 
     bpy.types.Armature.rigify_force_widget_update = BoolProperty(
         name="Overwrite Widget Meshes",
@@ -861,6 +874,8 @@ def unregister():
     del id_store.rigify_types
     del id_store.rigify_active_type
     del id_store.rigify_transfer_only_selected
+    del id_store.rigify_layers_mode
+    del id_store.rigify_layers_info    
 
     coll_store: typing.Any = bpy.types.BoneCollection
 

rigify/operators/action_layers.py

@@ -6,7 +6,8 @@ import bpy
 
 from typing import Tuple, Optional, Sequence, Any
 
-from bpy.types import PropertyGroup, Action, UIList, UILayout, Context, Panel, Operator, Armature
+from bpy.types import (PropertyGroup, Action, UIList, UILayout, Context, Panel, Operator, Armature,
+                       PoseBone, Bone, BoneCollection)
 from bpy.props import (EnumProperty, IntProperty, BoolProperty, StringProperty, FloatProperty,
                        PointerProperty, CollectionProperty)
 
@@ -178,6 +179,33 @@ def find_duplicate_slot(metarig_data: Armature, action_slot: ActionSlot) -> Opti
     return None
 
 
+def is_pose_bone_all_locked(pose_bone: PoseBone) -> bool:
+    """Return True if all pose_bone's transform channels are locked"""
+    if not all(pose_bone.lock_location):
+        return False
+    if not all(pose_bone.lock_scale):
+        return False
+    if not all(pose_bone.lock_rotation):
+        return False
+    
+    return True
+
+
+def should_skip_bone(bone: Bone):
+    """Return True if the bone should not be displayed (hidden, VIS_*)"""
+    if bone.hide:
+        return True
+    if bone.name.startswith('VIS_'):
+        # "VIS_*" bones are used for drawing lines, e.g. line connecting knee to IK pole
+        return True
+    
+    return False
+
+
+class BoneMultiSelect(bpy.types.PropertyGroup):
+    bone_name: bpy.props.StringProperty(name="bone_name")
+    do_select: bpy.props.BoolProperty(name="select")
+
 # =============================================
 # Operators
 
@@ -217,9 +245,185 @@ class RIGIFY_OT_jump_to_action_slot(Operator):
         return {'FINISHED'}
 
 
+# noinspection PyPep8Naming
+class RIGIFY_OT_display_select_group(bpy.types.Operator):
+    """Toggle bone layer visibility. Shift + click to toggle selection, Ctrl + click to remove from selection.
+    Alt + click displays a panel"""
+    bl_idname = "object.rigify_display_select_bone_group"
+    bl_label = "Display or Select the bones that belong to a selection"
+
+    collection_name: StringProperty(default="", options={'SKIP_SAVE'})
+    action: EnumProperty(items=(('VIS_TOGGLE', 'TOGGLE', 'Toggle visibility'),
+                                ('SELECT', 'SELECT', 'Add to selection'),
+                                ('TOGGLE_SELECT', 'TOGGLE_SELECT', 'Toggle selection'),
+                                ('UNSELECT', 'UNSELECT', 'Remove from selection'),
+                                ('DETAIL', 'DETAIL', 'Select bones individually')),
+                        default='VIS_TOGGLE')
+
+    @classmethod
+    def poll(cls, context):
+        return context.mode == 'POSE'
+    
+    def invoke(self, context, event):
+        if event.shift:
+            self.action = 'SELECT'
+        elif event.ctrl:
+            self.action = 'UNSELECT'
+        elif event.alt:
+            self.action = 'DETAIL'
+        else:
+            self.action = 'VIS_TOGGLE'
+
+        return self.execute(context)
+
+    def execute(self, context):
+        if not self.collection_name:
+            return {'CANCELLED'}
+
+        coll = context.object.data.collections[self.collection_name]
+
+        if self.action == 'TOGGLE_SELECT':
+            for bone in coll.bones:
+                if should_skip_bone(bone):
+                    continue
+                if is_pose_bone_all_locked(context.object.pose.bones[bone.name]):
+                    continue
+                bone.select = not bone.select
+        elif self.action == 'SELECT':
+            for bone in coll.bones:
+                if should_skip_bone(bone):
+                    continue
+                if is_pose_bone_all_locked(context.object.pose.bones[bone.name]):
+                    continue
+                bone.select = True
+        elif self.action == 'UNSELECT':
+            for bone in coll.bones:
+                bone.select = False
+        elif self.action == 'DETAIL':
+            context.object.data.collections.active = coll
+            bpy.ops.wm.call_panel(name=RIGIFY_PT_active_group_selection.bl_idname)
+        else:
+            coll.is_visible = not coll.is_visible
+        
+        return {'FINISHED'}
+
+
+class RIGIFY_OT_prefix_bone_selection(bpy.types.Operator):
+    """Select armature bone"""
+    
+    bl_idname = "object.rigify_prefix_bone_selection"
+    bl_label = "Select collection bone from menu"
+    bl_options = {'REGISTER', 'UNDO'}
+
+    prefix: bpy.props.StringProperty(name="")
+    bone_multi: bpy.props.CollectionProperty(type=BoneMultiSelect, options={'SKIP_SAVE'})
+       
+    def draw(self, context):
+        layout = self.layout
+        layout.operator_context = 'EXEC_REGION_WIN'
+
+        for bone_select in self.bone_multi:
+            layout.prop(bone_select, 'do_select', text=bone_select.bone_name, toggle=True)
+
+    def invoke(self, context, event):
+        self.bone_multi.clear()
+        bones = context.object.data.collections.active.bones
+
+        for bone in bones:
+            if not bone.name.startswith(self.prefix):
+                continue
+
+            select_bone = self.bone_multi.add()
+            select_bone.bone_name = bone.name
+            select_bone.do_select = bone.select
+
+        return context.window_manager.invoke_props_popup(self, event)
+    
+    def execute(self, context):
+        for bone_select in self.bone_multi:
+            context.object.data.bones[bone_select.bone_name].select = bone_select.do_select
+
+        return {'FINISHED'}
+    
+
 # =============================================
 # UI Panel
 
+# noinspection PyPep8Naming
+class RIGIFY_PT_active_group_selection(bpy.types.Panel):
+    """Display Panel for selecting bones of the active collection"""
+    bl_idname = "VIEW3D_PT_active_group_selection"
+    bl_label = "Select Bone"
+
+    bl_options = {'INSTANCED'}
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'WINDOW'
+
+    @classmethod
+    def poll(cls, context):
+        return context.mode == 'POSE'
+    
+    @staticmethod
+    def collect_bone_sides(collection: BoneCollection):
+        left_bones = []
+        mid_bones = []
+        right_bones = []
+        prefix_bones = set()
+        
+        digits = ".0123456789"  # used for stripping dot and number from bone names
+        armature = collection.id_data
+        for bone in collection.bones:
+            if should_skip_bone(bone):
+                continue
+
+            if bone.name[-1].isdigit():
+                # Looking for bones like "*.L.015", "*.R.023", "*.001"
+                base_name = bone.name.rstrip(digits)
+                if base_name in armature.bones:
+                    prefix_bones.add(base_name)
+                    continue
+
+            if bone.name.endswith('.L'): 
+                left_bones.append(bone)
+                continue
+            
+            if bone.name.endswith('.R'):
+                right_bones.append(bone)
+            else:
+                mid_bones.append(bone)
+        
+        return (left_bones, right_bones, mid_bones), prefix_bones
+
+    def draw(self, context):
+        collection = context.object.data.collections.active
+        bone_lists, prefix_bones = self.collect_bone_sides(collection)
+
+        # display Left and Right bones
+        row = self.layout.row()
+        columns = row.column(), row.column()
+        pose_bones = context.object.pose.bones
+        for col, bone_list in zip(columns, bone_lists[:2]):
+            for bone in bone_list:
+                if is_pose_bone_all_locked(pose_bones[bone.name]):
+                    continue
+
+                if bone.name in prefix_bones:
+                    col.operator(RIGIFY_OT_prefix_bone_selection.bl_idname, text=bone.name, icon='TRIA_RIGHT').prefix = bone.name
+                else:
+                    col.prop(bone, 'select', text=bone.name, toggle=True, expand=True)
+
+        col = self.layout.column()
+
+        # display Mid bones
+        for bone in bone_lists[2]:
+            if is_pose_bone_all_locked(pose_bones[bone.name]):
+                    continue
+            if bone.name in prefix_bones:
+                col.operator(RIGIFY_OT_prefix_bone_selection.bl_idname, text=bone.name, icon='TRIA_RIGHT').prefix = bone.name
+            else:
+                col.prop(bone, 'select', text=bone.name, toggle=True, expand=True)
+
+
 # noinspection PyPep8Naming
 class RIGIFY_UL_action_slots(UIList):
     def draw_item(self, context: Context, layout: UILayout, data: Armature,
@@ -499,8 +703,12 @@ class DATA_PT_rigify_actions(Panel):
 
 classes = (
     ActionSlot,
+    BoneMultiSelect,
     RIGIFY_OT_action_create,
     RIGIFY_OT_jump_to_action_slot,
+    RIGIFY_OT_display_select_group,
+    RIGIFY_OT_prefix_bone_selection,
+    RIGIFY_PT_active_group_selection,
     RIGIFY_UL_action_slots,
     DATA_PT_rigify_actions,
 )

rigify/rig_ui_template.py

@@ -10,6 +10,8 @@ from typing import Union, Optional, Any
 from .utils.animation import SCRIPT_REGISTER_BAKE, SCRIPT_UTILITIES_BAKE
 from .utils.mechanism import quote_property
 
+from .operators.action_layers import RIGIFY_OT_display_select_group
+
 from . import base_generate
 
 from rna_prop_ui import rna_idprop_quote_path
@@ -884,7 +886,7 @@ class RigBakeSettings(bpy.types.Panel):
 '''
 
 
-UI_LAYERS_PANEL = '''
+UI_LAYERS_PANEL = f'''
 class RigLayers(bpy.types.Panel):
     bl_space_type = 'VIEW_3D'
     bl_region_type = 'UI'
@@ -901,6 +903,26 @@ class RigLayers(bpy.types.Panel):
 
     def draw(self, context):
         layout = self.layout
+        wm = context.window_manager
+
+        split = layout.split()
+        row = split.row()
+        row.prop(wm, 'rigify_layers_mode', expand=True, text=None if wm.rigify_layers_info else "")
+        row.prop(wm, 'rigify_layers_info', icon='INFO', text="")
+        
+        if wm.rigify_layers_info:
+            box = layout.box()
+            box.label(text="Click: toggle Layer visibility")
+            if wm.rigify_layers_mode == 'PROPERTY':
+                box.label(text="Click + Drag: multi-toggle")
+            else:
+                box.label(text="Click + Shift: Select Bones")
+                box.label(text="Click + Ctrl: Unselect Bones")
+                box.label(text="Click + Alt: Pick Bones")
+                box.label(text="No drag click", icon='ERROR')
+
+        layout.separator()
+
         row_table = collections.defaultdict(list)
         for coll in context.active_object.data.collections:
             row_id = coll.get('rigify_ui_row', 0)
@@ -913,7 +935,10 @@ class RigLayers(bpy.types.Panel):
             if row_buttons:
                 for coll in row_buttons:
                     title = coll.get('rigify_ui_title') or coll.name
-                    row.prop(coll, 'is_visible', toggle=True, text=title)
+                    if wm.rigify_layers_mode == 'PROPERTY':
+                        row.prop(coll, 'is_visible', toggle=True, text=title)
+                    else:
+                        row.operator('{RIGIFY_OT_display_select_group.bl_idname}', text=title, depress=coll.is_visible).collection_name = coll.name
             else:
                 row.separator()
 '''