diff options
author | Campbell Barton <ideasman42@gmail.com> | 2010-08-11 19:11:30 +0400 |
---|---|---|
committer | Campbell Barton <ideasman42@gmail.com> | 2010-08-11 19:11:30 +0400 |
commit | ab8ccaa7098f6fee887f2a249fddada7864cd6c5 (patch) | |
tree | 672613464ff57264e76ca71cafa910cd26c8730a /release/scripts/modules/bpyml_ui.py | |
parent | 2a72eb8c287bedd35908ace4f19b06e806592845 (diff) |
python declarative UI
- remove XML testing feature
- add 2 modules: bpyml - generic, bpyml_ui - blender spesific. nothing uses these now.
==bpyml_ui module==
defines BPyML_BaseUI and its draw() function which uses the bpyml member of the class instance self.draw_data & self.draw_header_data.
This way declarative ui is opt-in and easy to use by using BPyML_BaseUI as a mix-in class.
==bpyml module==
This module translates a python like XML representation into XML
or simple python blender/ui function calls.
sometag(arg=10) [
another(),
another(key="value")
]
# converts into ...
<sometag arg="10">
<another/>
<another key="value" />
</sometag>
Diffstat (limited to 'release/scripts/modules/bpyml_ui.py')
-rw-r--r-- | release/scripts/modules/bpyml_ui.py | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/release/scripts/modules/bpyml_ui.py b/release/scripts/modules/bpyml_ui.py new file mode 100644 index 00000000000..ad68d1b0d7e --- /dev/null +++ b/release/scripts/modules/bpyml_ui.py @@ -0,0 +1,100 @@ +# ##### 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> + + +import bpy as _bpy +import bpyml +from bpyml import TAG, ARGS, CHILDREN +from types import ModuleType + +_uilayout_rna = _bpy.types.UILayout.bl_rna + +_uilayout_tags = ["ui"] + \ + _uilayout_rna.properties.keys() + \ + _uilayout_rna.functions.keys() + +# these need to be imported directly +# >>> from bpyml_ui.locals import * +locals = bpyml.tag_module("%s.locals" % __name__ , _uilayout_tags) + + +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 in (True, False): + pass + else: + 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_rna_args(base, py_node): + rna_params = base.bl_rna.functions[py_node[TAG]].parameters + args = {} + for key, value in py_node[ARGS].items(): + args[key] = _parse_rna(rna_params[key], value) + return args + + +def _call_recursive(context, base, py_node): + prop = base.bl_rna.properties.get(py_node[TAG]) + if py_node[TAG] in base.bl_rna.properties: + value = py_node[ARGS].get("expr") + if value: + value = eval(value, {"context": _bpy.context}) + setattr(base, py_node[TAG], value) + else: + value = py_node[ARGS]['value'] # have to have this + setattr(base, name, value) + else: + args = _parse_rna_args(base, py_node) + func_new = getattr(base, py_node[TAG]) + base_new = func_new(**args) # call blender func + if base_new is not None: + for py_node_child in py_node[CHILDREN]: + _call_recursive(context, base_new, py_node_child) + + +class BPyML_BaseUI(): + ''' + This is a mix-in class that defines a draw function + which checks for draw_data + ''' + + def draw(self, context): + layout = self.layout + for py_node in self.draw_data[CHILDREN]: + _call_recursive(context, layout, py_node) + + def draw_header(self, context): + layout = self.layout + for py_node in self.draw_header_data[CHILDREN]: + _call_recursive(context, layout, py_node) |