PyDriver support for all RNA property types

Support for driver variables that don't resolve to numbers, eg:
objects, bones, curves... etc.

Without this, Python expressions to access this data needed to use an absolute path from `bpy.data`,
however this is inconvenient, breaks easily (based on naming) and wouldn't set the dependencies correctly.

1 files changed, 33 insertions, 0 deletions

diff --git a/source/blender/python/intern/bpy_rna_driver.h b/source/blender/python/intern/bpy_rna_driver.h
new file mode 100644
index 00000000000..8deac2e4384
--- /dev/null
+++ b/source/blender/python/intern/bpy_rna_driver.h
@@ -0,0 +1,33 @@
+/*
+ * ***** 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 *****
+ */
+
+#ifndef __BPY_RNA_DRIVER_H__
+#define __BPY_RNA_DRIVER_H__
+
+/** \file blender/python/intern/bpy_rna_driver.h
+ *  \ingroup pythonintern
+ */
+
+struct ChannelDriver;
+struct DriverTarget;
+
+PyObject *pyrna_driver_get_variable_value(struct ChannelDriver *driver, struct DriverTarget *dtar);
+
+#endif  /* __BPY_RNA_DRIVER_H__ */