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/spines/super_spine.py b/rigify/rigs/spines/super_spine.py
index 6e46aa5c..d1b7593f 100644
--- a/rigify/rigs/spines/super_spine.py
+++ b/rigify/rigs/spines/super_spine.py
@@ -5,6 +5,7 @@ from ...utils import strip_org, make_deformer_name, connected_children_names
 from ...utils import create_circle_widget, create_sphere_widget, create_neck_bend_widget, create_neck_tweak_widget
 from ..widgets import create_ballsocket_widget
 from ...utils import MetarigError, make_mechanism_name, create_cube_widget
+from ...utils import ControlLayersOption
 from rna_prop_ui import rna_idprop_ui_prop_get
 
 script = """
@@ -58,12 +59,6 @@ class Rig:
         if self.use_tail and self.pivot_pos - 2 > 0:
             self.tail_pos = params.tail_pos
 
-        # Assign values to tweak layers props if opted by user
-        if params.tweak_extra_layers:
-            self.tweak_layers = list(params.tweak_layers)
-        else:
-            self.tweak_layers = None
-
         # Report error of user created less than the minimum of bones for rig
         min_bone_number = 3
         if self.use_head:
@@ -941,8 +936,7 @@ class Rig:
                 continue
             create_sphere_widget(self.obj, bone, bone_transform_name=None)
 
-            if self.tweak_layers:
-                pb[bone].bone.layers = self.tweak_layers
+        ControlLayersOption.TWEAK.assign(self.params, pb, tweaks)
 
     def generate(self):
         # Torso Rig Anatomy:
@@ -1058,17 +1052,7 @@ def add_parameters(params):
     )
 
     # Setting up extra layers for the FK and tweak
-    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)
 
 
 def parameters_ui(layout, params):
@@ -1096,45 +1080,7 @@ def parameters_ui(layout, params):
         row.prop(params, "copy_rotation_axes", index=i, toggle=True, text=axis)
     r.enabled = params.use_tail
 
-    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):
-        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):
-        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):
-        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):
-        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):