* operator class names
- Changed 'name' to '__label__' (since __name__ is already used for the class name)
- Changed 'properties' to '__props__'
* added a PyObject_GetAttrStringArgs(), utility function which Id like to see in pythons C api.
PyObject_GetAttrStringArgs(pyob, "someattr", "foo", "bar") /* pyob.someattr.foo.bar */
Support for subclassing blenders operator, to be registered as a new operator.
Still need to...
* add constants like Operator.FINISHED
* wrap context (with rna?)
* poll() cant work right now because there is no way to access the operatorType that holds the python class.
* Only float, int and bool properties can be added so far.
working example operator.
http://wiki.blender.org/index.php/BlenderDev/Blender2.5/WinterCamp/TechnicalDesign#Operator_Example_Code
* User interface uses this as a tooltip when NULL or "" is given.
* Python doc generation includes this description
* Python defined ops take the description as an argument.
* NULL check to image_ops.c, was crashing on exit when there was an image open.
* errors in python called operators are raised as errors
* Python defined operators errors are reported as errors (not full traceback yet)
* added BKE_reports_string, same as BKE_reports_print but it returns a string rather then printing it.
* WM_operator_name_call optionally takes an initialized report struct
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
