forked from bartvdbraak/blender
170 lines
6.2 KiB
Python
170 lines
6.2 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public License
|
|
# as published by the Free Software Foundation; either version 2
|
|
# of the License, or (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program; if not, write to the Free Software Foundation,
|
|
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
#
|
|
# ##### END GPL LICENSE BLOCK #####
|
|
|
|
# <pep8-80 compliant>
|
|
|
|
import bpy
|
|
from bpy.types import Operator
|
|
from bpy.props import EnumProperty
|
|
|
|
# XXX These node item lists should actually be generated by a callback at operator execution time (see node_type_items below),
|
|
# using the active node tree from the context. Due to a difficult bug in bpy this is not possible (item list memory gets freed too early),
|
|
# so for now just copy the static item lists to these global variables.
|
|
#
|
|
# In the custom_nodes branch, the static per-tree-type node items are replaced by a single independent type list anyway (with a poll function
|
|
# to limit node types to the respective trees). So this workaround is only temporary.
|
|
|
|
# lazy init
|
|
node_type_items_dict = {}
|
|
|
|
# Prefixes used to distinguish base node types and node groups
|
|
node_type_prefix = 'NODE_'
|
|
node_group_prefix = 'GROUP_'
|
|
|
|
|
|
# Generate a list of enum items for a given node class
|
|
# Copy existing type enum, adding a prefix to distinguish from node groups
|
|
# Skip the base node group type, node groups will be added below for all existing group trees
|
|
def node_type_items(node_class):
|
|
return [(node_type_prefix + item.identifier, item.name, item.description)
|
|
for item in node_class.bl_rna.properties['type'].enum_items if item.identifier != 'GROUP']
|
|
|
|
|
|
# Generate items for node group types
|
|
# Filter by the given tree_type
|
|
# Node group trees don't have a description property yet (could add this as a custom property though)
|
|
def node_group_items(tree_type):
|
|
return [(node_group_prefix + group.name, group.name, '')
|
|
for group in bpy.data.node_groups if group.type == tree_type]
|
|
|
|
|
|
# Returns the enum item list for the edited tree in the context
|
|
def node_type_items_cb(self, context):
|
|
snode = context.space_data
|
|
if not snode:
|
|
return ()
|
|
tree = snode.edit_tree
|
|
if not tree:
|
|
return ()
|
|
|
|
# Lists of basic node types for each
|
|
if not node_type_items_dict:
|
|
node_type_items_dict.update({
|
|
'SHADER': node_type_items(bpy.types.ShaderNode),
|
|
'COMPOSITING': node_type_items(bpy.types.CompositorNode),
|
|
'TEXTURE': node_type_items(bpy.types.TextureNode),
|
|
})
|
|
|
|
# XXX Does not work correctly, see comment above
|
|
#return [(item.identifier, item.name, item.description, item.value) for item in tree.nodes.bl_rna.functions['new'].parameters['type'].enum_items]
|
|
|
|
if tree.type in node_type_items_dict:
|
|
return node_type_items_dict[tree.type] + node_group_items(tree.type)
|
|
else:
|
|
return ()
|
|
|
|
|
|
class NODE_OT_add_search(Operator):
|
|
'''Add a node to the active tree'''
|
|
bl_idname = "node.add_search"
|
|
bl_label = "Search and Add Node"
|
|
bl_options = {'REGISTER', 'UNDO'}
|
|
|
|
# XXX this should be called 'node_type' but the operator search property is hardcoded to 'type' by a hack in bpy_operator_wrap.c ...
|
|
type = EnumProperty(
|
|
name="Node Type",
|
|
description="Node type",
|
|
items=node_type_items_cb,
|
|
)
|
|
|
|
_node_type_items_dict = None
|
|
|
|
def create_node(self, context):
|
|
space = context.space_data
|
|
tree = space.edit_tree
|
|
|
|
# Enum item identifier has an additional prefix to distinguish base node types from node groups
|
|
item = self.type
|
|
if item.startswith(node_type_prefix):
|
|
# item means base node type
|
|
node = tree.nodes.new(type=item[len(node_type_prefix):])
|
|
elif item.startswith(node_group_prefix):
|
|
# item means node group type
|
|
node = tree.nodes.new(type='GROUP', group=bpy.data.node_groups[item[len(node_group_prefix):]])
|
|
else:
|
|
return None
|
|
|
|
for n in tree.nodes:
|
|
if n == node:
|
|
node.select = True
|
|
tree.nodes.active = node
|
|
else:
|
|
node.select = False
|
|
node.location = space.cursor_location
|
|
return node
|
|
|
|
@classmethod
|
|
def poll(cls, context):
|
|
space = context.space_data
|
|
# needs active node editor and a tree to add nodes to
|
|
return (space.type == 'NODE_EDITOR' and space.edit_tree)
|
|
|
|
def execute(self, context):
|
|
self.create_node(context)
|
|
return {'FINISHED'}
|
|
|
|
def invoke(self, context, event):
|
|
space = context.space_data
|
|
v2d = context.region.view2d
|
|
|
|
# convert mouse position to the View2D for later node placement
|
|
space.cursor_location = v2d.region_to_view(event.mouse_region_x, event.mouse_region_y)
|
|
|
|
context.window_manager.invoke_search_popup(self)
|
|
return {'CANCELLED'}
|
|
|
|
|
|
class NODE_OT_collapse_hide_unused_toggle(Operator):
|
|
'''Toggle collapsed nodes and hide unused sockets'''
|
|
bl_idname = "node.collapse_hide_unused_toggle"
|
|
bl_label = "Collapse and Hide Unused Sockets"
|
|
bl_options = {'REGISTER', 'UNDO'}
|
|
|
|
@classmethod
|
|
def poll(cls, context):
|
|
space = context.space_data
|
|
# needs active node editor and a tree
|
|
return (space.type == 'NODE_EDITOR' and space.edit_tree)
|
|
|
|
def execute(self, context):
|
|
space = context.space_data
|
|
tree = space.edit_tree
|
|
|
|
for node in tree.nodes:
|
|
if node.select:
|
|
hide = (not node.hide)
|
|
|
|
node.hide = hide
|
|
# Note: connected sockets are ignored internally
|
|
for socket in node.inputs:
|
|
socket.hide = hide
|
|
for socket in node.outputs:
|
|
socket.hide = hide
|
|
|
|
return {'FINISHED'}
|