blender/release/scripts/modules/bpy/ops.py

212 lines
5.5 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>
# for slightly faster access
from _bpy import ops as ops_module
# op_add = ops_module.add
op_dir = ops_module.dir
op_poll = ops_module.poll
op_call = ops_module.call
op_as_string = ops_module.as_string
op_get_rna = ops_module.get_rna
class BPyOps(object):
'''
Fake module like class.
bpy.ops
'''
def __getattr__(self, module):
'''
gets a bpy.ops submodule
'''
if module.startswith('__'):
raise AttributeError(module)
return BPyOpsSubMod(module)
def __dir__(self):
submodules = set()
# add this classes functions
for id_name in dir(self.__class__):
if not id_name.startswith('__'):
submodules.add(id_name)
for id_name in op_dir():
id_split = id_name.split('_OT_', 1)
if len(id_split) == 2:
submodules.add(id_split[0].lower())
else:
submodules.add(id_split[0])
return list(submodules)
def __repr__(self):
return "<module like class 'bpy.ops'>"
class BPyOpsSubMod(object):
'''
Utility class to fake submodules.
eg. bpy.ops.object
'''
__keys__ = ('module',)
def __init__(self, module):
self.module = module
def __getattr__(self, func):
'''
gets a bpy.ops.submodule function
'''
if func.startswith('__'):
raise AttributeError(func)
return BPyOpsSubModOp(self.module, func)
def __dir__(self):
functions = set()
module_upper = self.module.upper()
for id_name in op_dir():
id_split = id_name.split('_OT_', 1)
if len(id_split) == 2 and module_upper == id_split[0]:
functions.add(id_split[1])
return list(functions)
def __repr__(self):
return "<module like class 'bpy.ops.%s'>" % self.module
class BPyOpsSubModOp(object):
'''
Utility class to fake submodule operators.
eg. bpy.ops.object.somefunc
'''
__keys__ = ('module', 'func')
def _get_doc(self):
return op_as_string(self.idname())
@staticmethod
def _parse_args(args):
C_dict = None
C_exec = 'EXEC_DEFAULT'
if len(args) == 0:
pass
elif len(args) == 1:
if type(args[0]) != str:
C_dict = args[0]
else:
C_exec = args[0]
elif len(args) == 2:
C_exec, C_dict = args
else:
raise ValueError("1 or 2 args execution context is supported")
return C_dict, C_exec
@staticmethod
def _scene_update(context):
scene = context.scene
if scene: # None in backgroud mode
scene.update()
else:
import bpy
for scene in bpy.data.scenes:
scene.update()
__doc__ = property(_get_doc)
def __init__(self, module, func):
self.module = module
self.func = func
def poll(self, *args):
C_dict, C_exec = BPyOpsSubModOp._parse_args(args)
return op_poll(self.idname_py(), C_dict, C_exec)
def idname(self):
# submod.foo -> SUBMOD_OT_foo
return self.module.upper() + "_OT_" + self.func
def idname_py(self):
# submod.foo -> SUBMOD_OT_foo
return self.module + "." + self.func
def __call__(self, *args, **kw):
import bpy
context = bpy.context
# Get the operator from blender
wm = context.window_manager
# run to account for any rna values the user changes.
BPyOpsSubModOp._scene_update(context)
if args:
C_dict, C_exec = BPyOpsSubModOp._parse_args(args)
ret = op_call(self.idname_py(), C_dict, kw, C_exec)
else:
ret = op_call(self.idname_py(), None, kw)
if 'FINISHED' in ret and context.window_manager == wm:
BPyOpsSubModOp._scene_update(context)
return ret
def get_rna(self):
'''
currently only used for 'bl_rna'
'''
return op_get_rna(self.idname())
def __repr__(self): # useful display, repr(op)
import bpy
idname = self.idname()
as_string = op_as_string(idname)
op_class = getattr(bpy.types, idname)
descr = op_class.bl_rna.description
# XXX, workaround for not registering
# every __doc__ to save time on load.
if not descr:
descr = op_class.__doc__
if not descr:
descr = ""
return "# %s\n%s" % (descr, as_string)
def __str__(self): # used for print(...)
return "<function bpy.ops.%s.%s at 0x%x'>" % \
(self.module, self.func, id(self))
ops_fake_module = BPyOps()