Differential D1812 Diff 6168 source/blender/python/intern/bpy_rna_driver.c

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source/blender/python/intern/bpy_rna_driver.c

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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 ***
				*/

				/** \file blender/python/intern/bpy_rna_driver.c
				* \ingroup pythonintern
				*
				* This file defines utility functions that use the RNA API, from PyDrivers.
				*/

				#include <Python.h>

				#include "MEM_guardedalloc.h"

				#include "BLI_utildefines.h"

				#include "BKE_fcurve.h"

				#include "RNA_access.h"

				#include "bpy_rna.h"

				#include "bpy_rna_driver.h" /* own include */


				/**
				* A version of #driver_get_variable_value which returns a PyObject.
				*/
				PyObject *pyrna_driver_get_variable_value(
				struct ChannelDriver driver, struct DriverTarget dtar)
				{
				PyObject *driver_arg = NULL;
				PointerRNA ptr;
				PropertyRNA *prop = NULL;
				int index;

				if (driver_get_variable_object(driver, dtar, &ptr, &prop, &index)) {
				if (prop) {
				if (index != -1) {
				if (index < RNA_property_array_length(&ptr, prop) && index >= 0) {
				/* object, property & index */
				driver_arg = pyrna_array_index(&ptr, prop, index);
				}
				else {
				/* out of range, pass */
				}
				}
				else {
				/* object & property */
				driver_arg = pyrna_prop_to_py(&ptr, prop);
				}
				}
				else {
				/* object only */
				driver_arg = pyrna_struct_CreatePyObject(&ptr);
				}
				}
				else {
				/* can't resolve path, pass */
				}

				return driver_arg;
				}