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Experimental undo and redo Python prototype (#1539)

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* Experimental undo and redo Python prototype

* Simplify history, use transaction jargon, use walk for more robust serialisation

* Black file, set history size, add file reference to entity_instance constructor

* Ensure that files are always passed when entities are wrapped

* Add support for undo/redo of all project module operations

* Minor fix

* Blender to IFC mappings are now managed by Blender RNA, so they don't break on undo operations. See #1475.

* Implement undo for all attribute operations. See #1475.

* Update documentation for installation of add-on

* Revert Blender RNA approach for Blender-IFC mappings, because it didn't scale, but still fix the undo/redo object memory corruption with new "reload_linked_elements" method.
This commit is contained in:
Dion Moult
2021-06-30 18:34:12 +10:00
committed by GitHub
parent 10bf875e92
commit 6b0a58db7d
15 changed files with 609 additions and 112 deletions
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src/ifcopenshell-python/ifcopenshell/entity_instance.py
+12 -8
View File
@@ -48,20 +48,21 @@ class entity_instance(object):
>>> #423=IfcProductDefinitionShape($,$,(#409,#421))
"""
def __init__(self, e):
def __init__(self, e, file):
if isinstance(e, tuple):
e = ifcopenshell_wrapper.new_IfcBaseClass(*e)
super(entity_instance, self).__setattr__("wrapped_data", e)
self.wrapped_data.file = file
def __getattr__(self, name):
INVALID, FORWARD, INVERSE = range(3)
attr_cat = self.wrapped_data.get_attribute_category(name)
if attr_cat == FORWARD:
return entity_instance.wrap_value(
self.wrapped_data.get_argument(self.wrapped_data.get_argument_index(name))
self.wrapped_data.get_argument(self.wrapped_data.get_argument_index(name)), self.wrapped_data.file
)
elif attr_cat == INVERSE:
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name))
return entity_instance.wrap_value(self.wrapped_data.get_inverse(name), self.wrapped_data.file)
else:
raise AttributeError(
"entity instance of type '%s' has no attribute '%s'" % (self.wrapped_data.is_a(), name)
@@ -77,9 +78,9 @@ class entity_instance(object):
return value
@staticmethod
def wrap_value(v):
def wrap_value(v, file):
def wrap(e):
return entity_instance(e)
return entity_instance(e, file)
def is_instance(e):
return isinstance(e, ifcopenshell_wrapper.entity_instance)
@@ -116,12 +117,15 @@ class entity_instance(object):
return self.wrapped_data.get_argument_name(attr_idx)
def __setattr__(self, key, value):
self[self.wrapped_data.get_argument_index(key)] = value
index = self.wrapped_data.get_argument_index(key)
if self.wrapped_data.file.transaction:
self.wrapped_data.file.transaction.store_edit(self, index, value)
self[index] = value
def __getitem__(self, key):
if key < 0 or key >= len(self):
raise IndexError("Attribute index {} out of range for instance of type {}".format(key, self.is_a()))
return entity_instance.wrap_value(self.wrapped_data.get_argument(key))
return entity_instance.wrap_value(self.wrapped_data.get_argument(key), self.wrapped_data.file)
def __setitem__(self, idx, value):
attr_type = real_attr_type = self.attribute_type(idx).title().replace(" ", "")
@@ -271,7 +275,7 @@ class entity_instance(object):
return return_type(_())
__dict__ = property(get_info)
def get_info_2(self, include_identifier=True, recursive=False, return_type=dict, ignore=()):
assert include_identifier
assert recursive