* make bpy compile with msvc again. The forward declaration of the array with no length was a problem. Instead, I switched the tables and made the function a forward declaration.
the Python invoke function can then edit the properties based on the event, once its finished the properties are copied back to the operator.
python exec and invoke functions can now return RUNNING_MODAL, CANCELLED, FINISHED, PASS_THROUGH flags
Still need to look into how python operators can make use of invoke/exec for a practical case. (Need to bring back the popup menu's)
This means you can define an operator in python that is called from C or Python - like any other operator.
Python functions for invoke and exec can be registered with an operator name.
keywords are read from the python exec() function, then used to create operator properties. The default python values are used to set the property type and defaults.
def exec(size=2.0, text="blah"): ...
is equivalent to...
prop = RNA_def_property(ot->srna, "size", PROP_FLOAT, PROP_NONE);
RNA_def_property_float_default(prop, 2.0f);
prop = RNA_def_property(ot->srna, "size", PROP_STRING, PROP_NONE);
RNA_def_property_string_default(prop, "blah");
TODO -
* make use of events
* return OPERATOR_CANCELLED/OPERATOR_FINISHED.. etc
* add support for array args
* more testing
Operator calls: extended WM_operator_name_call() with options whether to
call the exec() (operate immediate) or invoke() (check user input) entry.
This will allow python to use it more efficiently, but also solves the
dreaded pulldown case that showed another menu for confirmation.
New names to learn: :)
WM_OP_EXEC_DEFAULT
WM_OP_INVOKE_DEFAULT
on todo still: allow hotkey definitions to do same.
* added ED_SCRIPT_OT_run_pyfile that takes a filename argument.
* RNA_property_string_set didn't add a value to ID props if the prop wasnt there (like ints, floats and bools do)
* bpy_operator.c - raise an error when unknown keyword args are passed to any operator .
Examples of bpy operator api...
bpyoperator.ED_VIEW3D_OT_viewhome(center=1)
bpyoperator.ED_SCR_OT_frame_offset(delta=10)
bpyoperator.ED_VIEW3D_OT_make_parent(type='OBJECT')
At the moment there is no way to stop the operators .invoke() function from running so ED_VIEW3D_OT_make_parent still opens the menu even though it doesn't need to.
this means it can reuse the function for converting python to RNA types - giving more useful errors.
* Incorrect enum args lists valid values in their exception message (used for PyRNA and PyOperators).
* remove bpy_idprop.c and bpy_idprop.h
PyOperators are not usable since they run outside the UI loop atm.
Fix: popup menus were not freeing operators.
Made a new Popup menu call for this case:
uiPupmenuOperator(C, maxrow, op, propname, menustr);
It will set enum "propname" to the menu item and call operator,
register it optionally and free it. Use it in "invoke" calls.
Next: automatic menu generating for enum properties!
* Unicode calls in bpy_idprop.c were causing linking errors here. Probably Py-libs for windows would need recompiling with unicode before we can enable this. For now, commented out the offending calls.
"operator.ED_VIEW3D_OT_viewhome(center=1)" calls the operator, converting keyword args to properties.
Need a way to run scripts in the UI for useful testing.
Still need to deal with operator exceptions and verifying args against operator options.
Added temporary WM_operatortype_first() to allow python to return a list if available operators, can replace this with something better later (operator iterator?)
* RNA_property_enum_value
* RNA_property_enum_identifier
To get an enum string from a value and a value from an enum.
BPy_StructRNA types (objects, meshes, images etc) can now be used as dictionary keys.
source\blender\python\intern\bpy_rna.c:1018: error: initializer element is not constant
source\blender\python\intern\bpy_rna.c:1018: error: (near initialization for `pyrna_prop_Type.tp_get
Assign get generic get/sets before PyType_Ready runs
examples...
RNA Lamp: Lamp
==============
@ivar rna_type: RNA type definition. *readonly*
@type rna_type: PyRNA PointerProperty
@ivar name: Unique datablock ID name. (22 maximum length)
@type name: string
@ivar adapt_thresh: Threshold for Adaptive Sampling. in (0.000, 1.000)
@type adapt_thresh: float
@ivar area_shape: Shape of the Area lamp
@type area_shape: enum in [SQUARE, RECTANGLE]
@ivar area_size: Size of the area of the Area Lamp. in (0.000, 100.000)
@type area_size: float
@ivar area_sizey: Size of the area of the Area Lamp. in (0.000, 100.000)
@type area_sizey: float
- snip
RNA Object: Object
==================
@ivar rna_type: RNA type definition. *readonly*
@type rna_type: PyRNA PointerProperty
@ivar name: Unique datablock ID name. (22 maximum length)
@type name: string
@ivar data: Object data. *readonly*
@type data: PyRNA PointerProperty
@ivar fake_user: Saves this datablock even if it has no users
@type fake_user: bool
@ivar library: Library file the datablock is linked from. *readonly*
@type library: PyRNA PointerProperty
@ivar loc: in (-inf, inf)
@type loc: float[3]
Can now assign RNA arrays from python lists of bools/ints/floats
eg -> rna.scenes["Scene"].layer = [True] * 20
Also added exceptions when trying to set readonly properties.
* Matches the C/RNA api structure
* Thin wrapper ~(600 lines)
* No functions specific to any blender object type.
* Defines 2 types, BPy_StructRNA and BPy_PropertyRNA.
* Python 3.0 target (compatible with python 2.4,5,6)
* http://wiki.blender.org/index.php/BlenderDev/Blender2.5/PyRNA - continue docs/discussion here.
Todo
* Collection iterators
* Write access to data
* Define how constants should be accessed (as strings or some special type)
* Solve the "Python keeping invalid blender pointers" problem.
This cant just be solved in the py api - we need blender to notify when ID's are removed
Examples
Here are some examples that work with the current implementation of the api.
rna.lamps["Lamp.006"].energy -> (1.0)
rna.lamps["Lamp.007"].shadow -> ("NOSHADOW")
rna.materials.keys() -> ['flyingsquirrel_eye', 'frankie_skin', 'frankie_theeth']
rna.scenes["hud"].objects["num_text_p2_4"].data.novnormalflip -> False
rna.meshes["mymesh"].uv_layers.keys() -> ['UVTex', 'UVTex']
rna.meshes.items()
For a dump of yo-frankie level see - http://pasteall.org/3294/python
Notes
* Added python back, can only execute scripts from the command line with -P script.py
* bpy_interface.c is just enough functionality to run a python file.
- removed editors/area and put this all in screen
- added first python calls (note, a new c file for scriptlinks)
- added view3d editor callbacks (no drawing yet)
- added files in editors/interface
(Cmake and Scons has to be fixed, help welcome!)
- now areas/headers are being converted on file read
- note: previously saved 2.50 files will crash!!! (.B.blend)
- area regions are being drawn, first handler for cursor added (on edge)
- window duplicate and scale works correct for screen subdiv
Todos for me:
- need to fix things in syntax (function names) a bit still
- more operators for screen
- define how Context will work... still unresolved when it gets set
- docs!
Reviews of code structure is welcome!
There are also more todos now for others, but it can wait a couple of days
