forked from bartvdbraak/blender
4e61f8a836
bpy/rna api (no functionality change, just move getting the srna py base into a function)
114 lines
3.1 KiB
Python
114 lines
3.1 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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import bpy
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def collect_baseclasses(_class, bases):
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if _class is type or _class is object:
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return bases
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bases.append(_class)
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for _superclass in _class.__bases__:
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collect_baseclasses(_superclass, bases)
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return bases
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def collect_subclasses(_class, subs):
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if _class is type or _class is object:
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return subs
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subs.append(_class)
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for _subclass in _class.__subclasses__():
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collect_subclasses(_subclass, subs)
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return subs
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class DynMenu(bpy.types.Menu):
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def draw(self, context):
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'''
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This is a draw function that is used to call all subclasses draw functions
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starting from the registered classes draw function and working down.
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DynMenu.setup() must be called first.
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Sort/group classes could be nice
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'''
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subclass_ls = []
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collect_subclasses(self.__class__, subclass_ls)
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# print(subclass_ls)
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for subclass in subclass_ls:
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# print("drawwing", subclass) # , dir(subclass))
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subclass.internal_draw(self, context)
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# print("subclass.internal_draw", subclass.internal_draw)
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def setup(menu_class):
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'''
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Setup subclasses (not needed when self.add() is used)
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'''
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bases = collect_baseclasses(menu_class, [])
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# Incase 'DynMenu' isnt last
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while bases[-1] is not DynMenu:
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bases.pop()
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bases.pop() # remove 'DynMenu'
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root_class = bases[-1] # this is the registered class
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for subclass in collect_subclasses(root_class, []):
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#print(subclass)
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draw = getattr(subclass, 'draw', None)
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if draw and not hasattr(subclass, 'internal_draw'):
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# print("replace", subclass, draw)
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try:
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del subclass.draw
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except:
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pass
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subclass.internal_draw = draw
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root_class.draw = DynMenu.draw
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def add(menu_class, func):
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'''
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Add a single function directly without having to make a class
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important that the returned value should be stored in the module that called it.
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'''
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newclass = type('<menuclass>', (menu_class,), {})
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newclass.internal_draw = func
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setup(menu_class)
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return newclass
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'''
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# so we dont need to import this module
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DynMenu.setup = setup
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DynMenu.add = add
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# Only so we can access as bpy.types.
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# dont ever use this directly!
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bpy.types.register(DynMenu)
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'''
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