Merge of the PyNodes branch (aka "custom nodes") into trunk.

PyNodes opens up the node system in Blender to scripters and adds a number of UI-level improvements.

=== Dynamic node type registration ===
Node types can now be added at runtime, using the RNA registration mechanism from python. This enables addons such as render engines to create a complete user interface with nodes.

Examples of how such nodes can be defined can be found in my personal wiki docs atm [1] and as a script template in release/scripts/templates_py/custom_nodes.py [2].

=== Node group improvements ===
Each node editor now has a tree history of edited node groups, which allows opening and editing nested node groups. The node editor also supports pinning now, so that different spaces can be used to edit different node groups simultaneously. For more ramblings and rationale see (really old) blog post on code.blender.org [3].

The interface of node groups has been overhauled. Sockets of a node group are no longer displayed in columns on either side, but instead special input/output nodes are used to mirror group sockets inside a node tree. This solves the problem of long node lines in groups and allows more adaptable node layout. Internal sockets can be exposed from a group by either connecting to the extension sockets in input/output nodes (shown as empty circle) or by adding sockets from the node property bar in the "Interface" panel. Further details such as the socket name can also be changed there.

[1] http://wiki.blender.org/index.php/User:Phonybone/Python_Nodes
[2] http://projects.blender.org/scm/viewvc.php/trunk/blender/release/scripts/templates_py/custom_nodes.py?view=markup&root=bf-blender
[3] http://code.blender.org/index.php/2012/01/improving-node-group-interface-editing/

1 files changed, 21 insertions, 2 deletions

diff --git a/source/blender/makesrna/RNA_enum_types.h b/source/blender/makesrna/RNA_enum_types.h
index eabf0391c01..2719ae889d4 100644
--- a/source/blender/makesrna/RNA_enum_types.h
+++ b/source/blender/makesrna/RNA_enum_types.h
@@ -29,6 +29,10 @@
 
 #include "RNA_types.h"
 
+struct bNodeTreeType;
+struct bNodeType;
+struct bNodeSocketType;
+
 /* Types */
 
 extern EnumPropertyItem id_type_items[];
@@ -128,8 +132,23 @@ extern EnumPropertyItem gameproperty_type_items[];
 
 extern EnumPropertyItem viewport_shade_items[];
 
-extern EnumPropertyItem nodetree_type_items[];
-extern EnumPropertyItem node_socket_type_items[];
+int rna_node_tree_type_to_enum(struct bNodeTreeType *typeinfo);
+int rna_node_tree_idname_to_enum(const char *idname);
+struct bNodeTreeType *rna_node_tree_type_from_enum(int value);
+EnumPropertyItem *rna_node_tree_type_itemf(void *data, int (*poll)(void *data, struct bNodeTreeType *), int *free);
+
+int rna_node_type_to_enum(struct bNodeType *typeinfo);
+int rna_node_idname_to_enum(const char *idname);
+struct bNodeType *rna_node_type_from_enum(int value);
+EnumPropertyItem *rna_node_type_itemf(void *data, int (*poll)(void *data, struct bNodeType*), int *free);
+
+int rna_node_socket_type_to_enum(struct bNodeSocketType *typeinfo);
+int rna_node_socket_idname_to_enum(const char *idname);
+struct bNodeSocketType *rna_node_socket_type_from_enum(int value);
+EnumPropertyItem *rna_node_socket_type_itemf(void *data, int (*poll)(void *data, struct bNodeSocketType*), int *free);
+
+extern EnumPropertyItem node_socket_in_out_items[];
+extern EnumPropertyItem node_icon_items[];
 
 extern EnumPropertyItem node_math_items[];
 extern EnumPropertyItem node_vec_math_items[];