Rigify: add support for user-defined rig packages and related utilities.

As suggested by @icappielo, and after discussion with @meta-androcto,
I start a public request to commit third-party contributions already
accepted to https://github.com/eigen-value/rigify/tree/rigify_0.6_beta

Specifically, this includes:

* User-defined rig package (feature set) support by @pioverfour.
  This allows users to install pre-packaged rig sets via zip
  files, which become accessible together with built-in rigs,
  as discussed in T52758.

  https://github.com/eigen-value/rigify/pull/1

* Modularization of python script generation, allowing rigs to
  add their own utility functions and operators to the generated
  script. This is critical to make custom rig support really
  useful.

  https://github.com/eigen-value/rigify/pull/5

* The utils.py file is split into multiple modules with a backward
  compatibility proxy for old functions.

* Automatic verification that different rigs don't try to create
  different rig settings with the same name to alleviate increased
  risk of namespace conflicts with custom rigs.

  https://github.com/eigen-value/rigify/pull/7

* New utility class that implements bone layer selection UI.

  https://github.com/eigen-value/rigify/pull/6

* New utilities to replace copy & pasted boilerplate code for
  creating custom properties, constraints and drivers.

  https://github.com/eigen-value/rigify/pull/11

Some other random changes by MAD have likely slipped through.

These changes have already been extensively discussed and accepted
into the branch by @luciorossi, so I see no reason not to commit
them to the official repository to be tested during 2.8 beta.

Reviewers: icappiello

Differential Revision: https://developer.blender.org/D4364

1 files changed, 4 insertions, 58 deletions

diff --git a/rigify/rigs/limbs/simple_tentacle.py b/rigify/rigs/limbs/simple_tentacle.py
index 71a9eaa9..82fcafe8 100644
--- a/rigify/rigs/limbs/simple_tentacle.py
+++ b/rigify/rigs/limbs/simple_tentacle.py
@@ -4,6 +4,7 @@ from ...utils import strip_org, make_deformer_name, connected_children_names
 from ...utils import put_bone, create_sphere_widget
 from ...utils import create_circle_widget, align_bone_x_axis
 from ...utils import MetarigError
+from ...utils import ControlLayersOption
 
 
 class Rig:
@@ -15,11 +16,6 @@ class Rig:
 
         self.copy_rotation_axes = params.copy_rotation_axes
 
-        if params.tweak_extra_layers:
-            self.tweak_layers = list(params.tweak_layers)
-        else:
-            self.tweak_layers = None
-
         if len(self.org_bones) <= 1:
             raise MetarigError(
                 "RIGIFY ERROR: invalid rig structure on bone: %s" % (strip_org(bone_name))
@@ -118,9 +114,7 @@ class Rig:
                 tweak_pb.lock_rotation = (True, True, True)
                 tweak_pb.lock_scale = (True, True, True)
 
-            # Set up tweak bone layers
-            if self.tweak_layers:
-                tweak_pb.bone.layers = self.tweak_layers
+        ControlLayersOption.TWEAK.assign(self.params, self.obj.pose.bones, tweak_chain)
 
         return tweak_chain
 
@@ -250,17 +244,7 @@ def add_parameters(params):
         )
 
     # Setting up extra tweak layers
-    params.tweak_extra_layers = bpy.props.BoolProperty(
-        name="tweak_extra_layers",
-        default=True,
-        description=""
-        )
-
-    params.tweak_layers = bpy.props.BoolVectorProperty(
-        size=32,
-        description="Layers for the tweak controls to be on",
-        default=tuple([i == 1 for i in range(0, 32)])
-        )
+    ControlLayersOption.TWEAK.add_parameters(params)
 
     items = [('automatic', 'Automatic', ''), ('manual', 'Manual', '')]
     params.roll_alignment = bpy.props.EnumProperty(items=items, name="Bone roll alignment", default='automatic')
@@ -277,45 +261,7 @@ def parameters_ui(layout, params):
     for i, axis in enumerate(['x', 'y', 'z']):
         row.prop(params, "copy_rotation_axes", index=i, toggle=True, text=axis)
 
-    r = layout.row()
-    r.prop(params, "tweak_extra_layers")
-    r.active = params.tweak_extra_layers
-
-    col = r.column(align=True)
-    row = col.row(align=True)
-
-    bone_layers = bpy.context.active_pose_bone.bone.layers[:]
-
-    for i in range(8):    # Layers 0-7
-        icon = "NONE"
-        if bone_layers[i]:
-            icon = "LAYER_ACTIVE"
-        row.prop(params, "tweak_layers", index=i, toggle=True, text="", icon=icon)
-
-    row = col.row(align=True)
-
-    for i in range(16, 24):     # Layers 16-23
-        icon = "NONE"
-        if bone_layers[i]:
-            icon = "LAYER_ACTIVE"
-        row.prop(params, "tweak_layers", index=i, toggle=True, text="", icon=icon)
-
-    col = r.column(align=True)
-    row = col.row(align=True)
-
-    for i in range(8, 16):  # Layers 8-15
-        icon = "NONE"
-        if bone_layers[i]:
-            icon = "LAYER_ACTIVE"
-        row.prop(params, "tweak_layers", index=i, toggle=True, text="", icon=icon)
-
-    row = col.row(align=True)
-
-    for i in range(24, 32):     # Layers 24-31
-        icon = "NONE"
-        if bone_layers[i]:
-            icon = "LAYER_ACTIVE"
-        row.prop(params, "tweak_layers", index=i, toggle=True, text="", icon=icon)
+    ControlLayersOption.TWEAK.parameters_ui(layout, params)
 
 
 def create_sample(obj):