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# ##### 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 compliant>
"""
This module translates XML into blender/ui function calls.
"""
import xml.dom.minidom
import bpy as _bpy
def parse_rna(prop, value):
if prop.type == 'FLOAT':
value = float(value)
elif prop.type == 'INT':
value = int(value)
elif prop.type == 'BOOLEAN':
if value not in ("true", "false"):
raise Exception("invalid bool value: %s", value)
value = bool(value == "true")
elif prop.type in ('STRING', 'ENUM'):
pass
elif prop.type == 'POINTER':
value = eval("_bpy." + value)
else:
raise Exception("type not supported %s.%s" % (prop.identifier, prop.type))
return value
def parse_args(base, xml_node):
args = {}
rna_params = base.bl_rna.functions[xml_node.tagName].parameters
for key, value in xml_node.attributes.items():
args[key] = parse_rna(rna_params[key], value)
return args
def ui_xml(base, xml_node):
name = xml_node.tagName
prop = base.bl_rna.properties.get(name)
if name in base.bl_rna.properties:
attr = xml_node.attributes.get("expr")
if attr:
value = attr.value
value = eval(value, {"context": _bpy.context})
setattr(base, name, value)
else:
attr = xml_node.attributes['value']
value = attr.value
value = parse_rna(prop, value)
setattr(base, name, value)
else:
func_new = getattr(base, name)
kw_args = parse_args(base, xml_node)
base_new = func_new(**kw_args) # call blender func
if xml_node.hasChildNodes():
ui_xml_list(base_new, xml_node.childNodes)
def ui_xml_list(base, xml_nodes):
import bpy
for node in xml_nodes:
if node.nodeType not in (node.TEXT_NODE, node.COMMENT_NODE):
ui_xml(base, node)
bpy.N = node
def test(layout):
uixml = xml.dom.minidom.parseString(open("/mnt/test/blender-svn/blender/release/scripts/ui/test.xml", 'r').read())
panel = uixml.getElementsByTagName('panel')[0]
ui_xml_list(layout, panel.childNodes)
def load_xml(filepath):
classes = []
fn = open(filepath, 'r')
data = fn.read()
uixml = xml.dom.minidom.parseString(data).getElementsByTagName("ui")[0]
fn.close()
def draw_xml(self, context):
node = self._xml_node.getElementsByTagName("draw")[0]
ui_xml_list(self.layout, node.childNodes)
def draw_header_xml(self, context):
node = self._xml_node.getElementsByTagName("draw_header")[0]
ui_xml_list(self.layout, node.childNodes)
for node in uixml.childNodes:
if node.nodeType not in (node.TEXT_NODE, node.COMMENT_NODE):
name = node.tagName
class_name = node.attributes["identifier"].value
if name == "panel":
class_dict = {
"bl_label": node.attributes["label"].value,
"bl_region_type": node.attributes["region_type"].value,
"bl_space_type": node.attributes["space_type"].value,
"bl_context": node.attributes["context"].value,
"bl_default_closed": ((node.attributes["default_closed"].value == "true") if "default_closed" in node.attributes else False),
"draw": draw_xml,
"_xml_node": node
}
if node.getElementsByTagName("draw_header"):
class_dict["draw_header"] = draw_header_xml
# will register instantly
class_new = type(class_name, (_bpy.types.Panel,), class_dict)
elif name == "menu":
class_dict = {
"bl_label": node.attributes["label"].value,
"draw": draw_xml,
"_xml_node": node
}
# will register instantly
class_new = type(class_name, (_bpy.types.Menu,), class_dict)
elif name == "header":
class_dict = {
"bl_label": node.attributes["label"].value,
"bl_space_type": node.attributes["space_type"].value,
"draw": draw_xml,
"_xml_node": node
}
# will register instantly
class_new = type(class_name, (_bpy.types.Header,), class_dict)
else:
raise Exception("invalid id found '%s': expected a value in ('header', 'panel', 'menu)'" % name)
classes.append(class_new)
return classes
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