forked from bartvdbraak/blender
370 lines
13 KiB
Python
370 lines
13 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# Contributor(s): Campbell Barton
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#
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# ***** END GPL LICENSE BLOCK *****
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# <pep8 compliant>
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import bpy
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def build_property_typemap(skip_classes):
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property_typemap = {}
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for attr in dir(bpy.types):
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cls = getattr(bpy.types, attr)
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if issubclass(cls, skip_classes):
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continue
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## to support skip-save we cant get all props
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# properties = cls.bl_rna.properties.keys()
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properties = []
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for prop_id, prop in cls.bl_rna.properties.items():
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if not prop.is_skip_save:
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properties.append(prop_id)
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properties.remove("rna_type")
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property_typemap[attr] = properties
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return property_typemap
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def print_ln(data):
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print(data, end="")
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def rna2xml(fw=print_ln,
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root_node="",
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root_rna=None, # must be set
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root_rna_skip=set(),
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root_ident="",
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ident_val=" ",
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skip_classes=(bpy.types.Operator,
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bpy.types.Panel,
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bpy.types.KeyingSet,
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bpy.types.Header,
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),
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pretty_format=True,
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method='DATA'):
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from xml.sax.saxutils import quoteattr
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property_typemap = build_property_typemap(skip_classes)
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def number_to_str(val, val_type):
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if val_type == int:
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return "%d" % val
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elif val_type == float:
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return "%.6g" % val
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elif val_type == bool:
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return "TRUE" if val else "FALSE"
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else:
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raise NotImplemented("this type is not a number %s" % val_type)
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def rna2xml_node(ident, value, parent):
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ident_next = ident + ident_val
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# divide into attrs and nodes.
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node_attrs = []
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nodes_items = []
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nodes_lists = []
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value_type = type(value)
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if issubclass(value_type, skip_classes):
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return
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# XXX, fixme, pointcache has eternal nested pointer to its self.
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if value == parent:
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return
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value_type_name = value_type.__name__
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for prop in property_typemap[value_type_name]:
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subvalue = getattr(value, prop)
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subvalue_type = type(subvalue)
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if subvalue_type in (int, bool, float):
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node_attrs.append("%s=\"%s\"" % (prop, number_to_str(subvalue, subvalue_type)))
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elif subvalue_type is str:
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node_attrs.append("%s=%s" % (prop, quoteattr(subvalue)))
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elif subvalue_type == set:
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node_attrs.append("%s=%s" % (prop, quoteattr("{" + ",".join(list(subvalue)) + "}")))
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elif subvalue is None:
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node_attrs.append("%s=\"NONE\"" % prop)
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elif issubclass(subvalue_type, bpy.types.ID):
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# special case, ID's are always referenced.
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node_attrs.append("%s=%s" % (prop, quoteattr(subvalue_type.__name__ + "::" + subvalue.name)))
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else:
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try:
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subvalue_ls = list(subvalue)
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except:
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subvalue_ls = None
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if subvalue_ls is None:
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nodes_items.append((prop, subvalue, subvalue_type))
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else:
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# check if the list contains native types
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subvalue_rna = value.path_resolve(prop, False)
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if type(subvalue_rna).__name__ == "bpy_prop_array":
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# check if this is a 0-1 color (rgb, rgba)
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# in that case write as a hexidecimal
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prop_rna = value.bl_rna.properties[prop]
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if (prop_rna.subtype == 'COLOR_GAMMA' and
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prop_rna.hard_min == 0.0 and
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prop_rna.hard_max == 1.0 and
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prop_rna.array_length in {3, 4}):
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# -----
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# color
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array_value = "#" + "".join(("%.2x" % int(v * 255) for v in subvalue_rna))
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else:
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# default
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def str_recursive(s):
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subsubvalue_type = type(s)
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if subsubvalue_type in (int, float, bool):
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return number_to_str(s, subsubvalue_type)
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else:
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return " ".join([str_recursive(si) for si in s])
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array_value = " ".join(str_recursive(v) for v in subvalue_rna)
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node_attrs.append("%s=\"%s\"" % (prop, array_value))
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else:
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nodes_lists.append((prop, subvalue_ls, subvalue_type))
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# declare + attributes
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if pretty_format:
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tmp_str = "<%s " % value_type_name
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tmp_ident = "\n" + ident + (" " * len(tmp_str))
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fw("%s%s%s>\n" % (ident, tmp_str, tmp_ident.join(node_attrs)))
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del tmp_str
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del tmp_ident
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else:
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fw("%s<%s %s>\n" % (ident, value_type_name, " ".join(node_attrs)))
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# unique members
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for prop, subvalue, subvalue_type in nodes_items:
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fw("%s<%s>\n" % (ident_next, prop)) # XXX, this is awkward, how best to solve?
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rna2xml_node(ident_next + ident_val, subvalue, value)
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fw("%s</%s>\n" % (ident_next, prop)) # XXX, need to check on this.
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# list members
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for prop, subvalue, subvalue_type in nodes_lists:
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fw("%s<%s>\n" % (ident_next, prop))
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for subvalue_item in subvalue:
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if subvalue_item is not None:
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rna2xml_node(ident_next + ident_val, subvalue_item, value)
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fw("%s</%s>\n" % (ident_next, prop))
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fw("%s</%s>\n" % (ident, value_type_name))
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# -------------------------------------------------------------------------
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# needs re-workign to be generic
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if root_node:
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fw("%s<%s>\n" % (root_ident, root_node))
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# bpy.data
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if method == 'DATA':
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ident = root_ident + ident_val
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for attr in dir(root_rna):
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# exceptions
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if attr.startswith("_"):
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continue
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elif attr in root_rna_skip:
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continue
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value = getattr(root_rna, attr)
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try:
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ls = value[:]
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except:
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ls = None
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if type(ls) == list:
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fw("%s<%s>\n" % (ident, attr))
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for blend_id in ls:
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rna2xml_node(ident + ident_val, blend_id, None)
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fw("%s</%s>\n" % (ident_val, attr))
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# any attribute
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elif method == 'ATTR':
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rna2xml_node(root_ident, root_rna, None)
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if root_node:
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fw("%s</%s>\n" % (root_ident, root_node))
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def xml2rna(root_xml,
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root_rna=None, # must be set
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):
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def rna2xml_node(xml_node, value):
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# print("evaluating:", xml_node.nodeName)
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# ---------------------------------------------------------------------
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# Simple attributes
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for attr in xml_node.attributes.keys():
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# print(" ", attr)
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subvalue = getattr(value, attr, Ellipsis)
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if subvalue is Ellipsis:
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print("%s.%s not found" % (type(value).__name__, attr))
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else:
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value_xml = xml_node.attributes[attr].value
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subvalue_type = type(subvalue)
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tp_name = 'UNKNOWN'
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if subvalue_type == float:
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value_xml_coerce = float(value_xml)
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tp_name = 'FLOAT'
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elif subvalue_type == int:
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value_xml_coerce = int(value_xml)
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tp_name = 'INT'
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elif subvalue_type == bool:
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value_xml_coerce = {'TRUE': True, 'FALSE': False}[value_xml]
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tp_name = 'BOOL'
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elif subvalue_type == str:
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value_xml_coerce = value_xml
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tp_name = 'STR'
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elif hasattr(subvalue, "__len__"):
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if value_xml.startswith("#"):
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# read hexidecimal value as float array
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value_xml_split = value_xml[1:]
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value_xml_coerce = [int(value_xml_split[i:i + 2], 16) / 255 for i in range(0, len(value_xml_split), 2)]
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del value_xml_split
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else:
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value_xml_split = value_xml.split()
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try:
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value_xml_coerce = [int(v) for v in value_xml_split]
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except ValueError:
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value_xml_coerce = [float(v) for v in value_xml_split]
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del value_xml_split
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tp_name = 'ARRAY'
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# print(" %s.%s (%s) --- %s" % (type(value).__name__, attr, tp_name, subvalue_type))
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setattr(value, attr, value_xml_coerce)
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# ---------------------------------------------------------------------
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# Complex attributes
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for child_xml in xml_node.childNodes:
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if child_xml.nodeType == child_xml.ELEMENT_NODE:
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# print()
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# print(child_xml.nodeName)
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subvalue = getattr(value, child_xml.nodeName, None)
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if subvalue is not None:
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elems = []
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for child_xml_real in child_xml.childNodes:
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if child_xml_real.nodeType == child_xml_real.ELEMENT_NODE:
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elems.append(child_xml_real)
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del child_xml_real
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if hasattr(subvalue, "__len__"):
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# Collection
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if len(elems) != len(subvalue):
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print("Size Mismatch! collection:", child_xml.nodeName)
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else:
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for i in range(len(elems)):
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child_xml_real = elems[i]
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subsubvalue = subvalue[i]
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if child_xml_real is None or subsubvalue is None:
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print("None found %s - %d collection:", (child_xml.nodeName, i))
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else:
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rna2xml_node(child_xml_real, subsubvalue)
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else:
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# print(elems)
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if len(elems) == 1:
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# sub node named by its type
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child_xml_real, = elems
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# print(child_xml_real, subvalue)
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rna2xml_node(child_xml_real, subvalue)
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else:
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# empty is valid too
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pass
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rna2xml_node(root_xml, root_rna)
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# -----------------------------------------------------------------------------
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# Utility function used by presets.
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# The idea is you can run a preset like a script with a few args.
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#
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# This roughly matches the operator 'bpy.ops.script.python_file_run'
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def _get_context_val(context, path):
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path_full = "context." + path
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try:
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value = eval(path_full)
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except:
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import traceback
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traceback.print_exc()
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print("Error: %r could not be found" % path_full)
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value = Ellipsis
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return value
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def xml_file_run(context, filepath, rna_map):
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import xml.dom.minidom
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xml_nodes = xml.dom.minidom.parse(filepath)
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bpy_xml = xml_nodes.getElementsByTagName("bpy")[0]
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for rna_path, xml_tag in rna_map:
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# first get xml
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# TODO, error check
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xml_node = bpy_xml.getElementsByTagName(xml_tag)[0]
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value = _get_context_val(context, rna_path)
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if value is not Ellipsis and value is not None:
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print(" loading XML: %r" % rna_path)
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xml2rna(xml_node, root_rna=value)
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def xml_file_write(context, filepath, rna_map):
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file = open(filepath, 'w', encoding='utf-8')
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fw = file.write
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fw("<bpy>\n")
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for rna_path, xml_tag in rna_map:
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# xml_tag is ignored, we get this from the rna
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value = _get_context_val(context, rna_path)
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rna2xml(fw,
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root_rna=value,
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method='ATTR',
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root_ident=" ",
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ident_val=" ")
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fw("</bpy>\n")
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file.close()
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