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minor changes and error checking.

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tested first PyOperator, basics work now, invoke/exec can be used to make an operator that edits RNA or calls other operators.
This commit is contained in:
Campbell Barton
2008-12-28 13:03:37 +00:00
parent 1e463b22eb
commit f9fd3d7139
2 changed files with 42 additions and 14 deletions
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37
source/blender/python/intern/bpy_opwrapper.c
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@@ -38,7 +38,6 @@
#include "bpy_rna.h"
#include "bpy_compat.h"
#include "bpy_util.h"
#include "bpy_operator.h" /* for PYOP_props_from_dict() */
typedef struct PyOperatorType {
void *next, *prev;
@@ -177,6 +176,7 @@ static struct BPY_flag_def pyop_ret_flags[] = {
{NULL, 0}
};
/* exec only - no user input */
static int PYTHON_OT_exec(bContext *C, wmOperator *op)
{
PyOperatorType *pyot = op->type->pyop_data;
@@ -200,19 +200,34 @@ static int PYTHON_OT_exec(bContext *C, wmOperator *op)
Py_DECREF(args);
Py_DECREF(kw);
return OPERATOR_FINISHED;
return ret_flag;
}
/* This invoke function can take events and
*
* It is up to the pyot->py_invoke() python func to run pyot->py_exec()
* the invoke function gets the keyword props as a dict, but can parse them
* to py_exec like this...
*
* def op_exec(x=-1, y=-1, text=""):
* ...
*
* def op_invoke(event, prop_defs):
* prop_defs['x'] = event['x']
* ...
* op_exec(**prop_defs)
*
* when there is no invoke function, C calls exec and sets the props.
*/
static int PYTHON_OT_invoke(bContext *C, wmOperator *op, wmEvent *event)
{
PyOperatorType *pyot = op->type->pyop_data;
PyObject *args= PyTuple_New(2);
PyObject *kw= pyop_kwargs_from_operator(op);
PyObject *ret;
int ret_flag;
PyTuple_SET_ITEM(args, 0, pyop_dict_from_event(event));
PyTuple_SET_ITEM(args, 1, kw);
PyTuple_SET_ITEM(args, 1, pyop_kwargs_from_operator(op));
ret = PyObject_Call(pyot->py_invoke, args, NULL);
@@ -224,13 +239,13 @@ static int PYTHON_OT_invoke(bContext *C, wmOperator *op, wmEvent *event)
/* the returned value could not be converted into a flag */
PyErr_Print();
}
else {
/* copy the args back to the prop */
if (PYOP_props_from_dict(op->ptr, kw) == -1) {
/* one of the dict items didnt convert back to the prop */
PyErr_Print();
}
}
/* there is no need to copy the py keyword dict modified by
* pyot->py_invoke(), back to the operator props since they are just
* thrown away anyway
*
* If we ever want to do this and use the props again,
* it can be done with - PYOP_props_from_dict(op->ptr, kw)
*/
}