98 lines
2.6 KiB
Python
98 lines
2.6 KiB
Python
import bpy
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import nodeitems_utils
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from . import types
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from .nodes import BL_NODES
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####################
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# - Assembly of Node Categories
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####################
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class MaxwellSimNodeCategory(nodeitems_utils.NodeCategory):
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@classmethod
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def poll(cls, context):
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"""Constrain node category availability to within a MaxwellSimTree."""
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return context.space_data.tree_type == types.TreeType.MaxwellSim.value
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DYNAMIC_SUBMENU_REGISTRATIONS = []
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def mk_node_categories(
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tree,
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syllable_prefix = [],
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#root = True,
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):
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global DYNAMIC_SUBMENU_REGISTRATIONS
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items = []
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# Add Node Items
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base_category = types.NodeCategory["_".join(syllable_prefix)]
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for node_type, node_category in BL_NODES.items():
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if node_category == base_category:
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items.append(nodeitems_utils.NodeItem(node_type.value))
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# Add Node Sub-Menus
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for syllable, sub_tree in tree.items():
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current_syllable_path = syllable_prefix + [syllable]
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current_category = types.NodeCategory[
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"_".join(current_syllable_path)
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]
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# Build Items for Sub-Categories
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subitems = mk_node_categories(
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sub_tree,
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current_syllable_path,
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)
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if len(subitems) == 0: continue
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# Define Dynamic Node Submenu
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def draw_factory(items):
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def draw(self, context):
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for nodeitem_or_submenu in items:
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if isinstance(
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nodeitem_or_submenu,
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nodeitems_utils.NodeItem,
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):
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nodeitem = nodeitem_or_submenu
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self.layout.operator(
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"node.add_node",
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text=nodeitem.label,
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).type = nodeitem.nodetype
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elif isinstance(nodeitem_or_submenu, str):
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submenu_id = nodeitem_or_submenu
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self.layout.menu(submenu_id)
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return draw
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menu_class = type(current_category.value, (bpy.types.Menu,), {
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'bl_idname': current_category.value,
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'bl_label': types.NodeCategory_to_category_label[current_category],
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'draw': draw_factory(tuple(subitems)),
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})
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# Report to Items and Registration List
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items.append(current_category.value)
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DYNAMIC_SUBMENU_REGISTRATIONS.append(menu_class)
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return items
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####################
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# - Blender Registration
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####################
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BL_NODE_CATEGORIES = mk_node_categories(
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types.NodeCategory.get_tree()["MAXWELL"]["SIM"],
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syllable_prefix = ["MAXWELL", "SIM"],
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)
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## TODO: refractor, this has a big code smell
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BL_REGISTER = [
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*DYNAMIC_SUBMENU_REGISTRATIONS
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] ## Must be run after, right now.
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## TEST - TODO this is a big code smell
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def menu_draw(self, context):
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if context.space_data.tree_type == types.TreeType.MaxwellSim.value:
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for nodeitem_or_submenu in BL_NODE_CATEGORIES:
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if isinstance(nodeitem_or_submenu, str):
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submenu_id = nodeitem_or_submenu
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self.layout.menu(submenu_id)
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bpy.types.NODE_MT_add.append(menu_draw)
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