blender/release/scripts/modules/dynamic_menu.py
Campbell Barton a3f6b0ed00 - add torus back from 2.4x as an operator
bpy.ops.mesh.primitive_torus_add(major_radius=1, minor_radius=0.25, major_segments=48, minor_segments=16)

- experemental dynamic menus, used for INFO_MT_file, INFO_MT_file_import, INFO_MT_file_export and INFO_MT_mesh_add. these can have items added from python.
eg.

- removed OBJECT_OT_mesh_add, use the python add menu instead.

- made mesh primitive ops -  MESH_OT_primitive_plane_add, ...cube_add, etc. work in object mode.

- RNA scene.active_object wrapped

- bugfix [#19466] 2.5: Tweak menu only available for mesh objects added within Edit Mode
  ED_object_exit_editmode was always doing an undo push, made this optional using the existing flag - EM_DO_UNDO, called everywhere except when adding primitives.
2009-10-10 21:23:20 +00:00

96 lines
2.1 KiB
Python

import bpy
def collect_baseclasses(_class, bases):
if _class is type or _class is object:
return bases
bases.append(_class)
for _superclass in _class.__bases__:
collect_baseclasses(_superclass, bases)
return bases
def collect_subclasses(_class, subs):
if _class is type or _class is object:
return subs
subs.append(_class)
for _subclass in _class.__subclasses__():
collect_subclasses(_subclass, subs)
return subs
class DynMenu(bpy.types.Menu):
def draw(self, context):
'''
This is a draw function that is used to call all subclasses draw functions
starting from the registered classes draw function and working down.
DynMenu.setup() must be called first.
Sort/group classes could be nice
'''
subclass_ls = []
collect_subclasses(self.__class__, subclass_ls)
# print(subclass_ls)
for subclass in subclass_ls:
# print("drawwing", subclass) # , dir(subclass))
subclass.internal_draw(self, context)
# print("subclass.internal_draw", subclass.internal_draw)
def setup(menu_class):
'''
Setup subclasses (not needed when self.add() is used)
'''
bases = collect_baseclasses(menu_class, [])
# Incase 'DynMenu' isnt last
while bases[-1] is not DynMenu:
bases.pop()
bases.pop() # remove 'DynMenu'
root_class = bases[-1] # this is the registered class
for subclass in collect_subclasses(root_class, []):
#print(subclass)
draw = getattr(subclass, 'draw', None)
if draw and not hasattr(subclass, 'internal_draw'):
# print("replace", subclass, draw)
try:
del subclass.draw
except:
pass
subclass.internal_draw = draw
root_class.draw = DynMenu.draw
def add(menu_class, func):
'''
Add a single function directly without having to make a class
important that the returned value should be stored in the module that called it.
'''
newclass = type('<menuclass>', (menu_class,), {})
newclass.internal_draw = func
setup(menu_class)
return newclass
'''
# so we dont need to import this module
DynMenu.setup = setup
DynMenu.add = add
# Only so we can access as bpy.types.
# dont ever use this directly!
bpy.types.register(DynMenu)
'''