RNA: Generic Type Registration

The Python API to define Panels and Operators is based on subclassing,
this makes that system more generic, and based on RNA. Hopefully that
will make it easy to make various parts of Blender more extensible.

* The system simply uses RNA properties and functions and marks them
  with REGISTER to make them part of the type registration process.
  Additionally, the struct must provide a register/unregister callback
  to create/free the PanelType or similar.
* From the python side there were some small changes, mainly that
  registration now goes trough bpy.types.register instead of
  bpy.ui.addPanel.

* Only Panels have been wrapped this way now.  Check rna_ui.c to see
  how this code works. There's still some rough edges and possibilities
  to make it cleaner, though it works without any manual python code.
* Started some docs here:

http://wiki.blender.org/index.php/BlenderDev/Blender2.5/RNATypeRegistration

* Also changed some RNA_property and RNA_struct functions to not
  require a PointerRNA anymore, where they were not required (which
  is actually the cause of most changed files).

1 files changed, 31 insertions, 22 deletions

diff --git a/source/blender/makesrna/RNA_access.h b/source/blender/makesrna/RNA_access.h
index 7c7ecf29bb9..5795bfe5b26 100644
--- a/source/blender/makesrna/RNA_access.h
+++ b/source/blender/makesrna/RNA_access.h
@@ -321,19 +321,25 @@ void RNA_blender_rna_pointer_create(PointerRNA *r_ptr);
 
 /* Structs */
 
-const char *RNA_struct_identifier(PointerRNA *ptr);
-const char *RNA_struct_ui_name(PointerRNA *ptr);
-const char *RNA_struct_ui_description(PointerRNA *ptr);
+const char *RNA_struct_identifier(StructRNA *type);
+const char *RNA_struct_ui_name(StructRNA *type);
+const char *RNA_struct_ui_description(StructRNA *type);
 
-PropertyRNA *RNA_struct_name_property(PointerRNA *ptr);
-PropertyRNA *RNA_struct_iterator_property(PointerRNA *ptr);
+PropertyRNA *RNA_struct_name_property(StructRNA *type);
+PropertyRNA *RNA_struct_iterator_property(StructRNA *type);
 
-int RNA_struct_is_ID(PointerRNA *ptr);
-int RNA_struct_is_a(PointerRNA *ptr, StructRNA *srna);
+int RNA_struct_is_ID(StructRNA *type);
+int RNA_struct_is_a(StructRNA *type, StructRNA *srna);
+
+StructRegisterFunc RNA_struct_register(StructRNA *type);
+StructUnregisterFunc RNA_struct_unregister(StructRNA *type);
 
 void *RNA_struct_py_type_get(StructRNA *srna);
 void RNA_struct_py_type_set(StructRNA *srna, void *py_type);
 
+void *RNA_struct_blender_type_get(StructRNA *srna);
+void RNA_struct_blender_type_set(StructRNA *srna, void *blender_type);
+
 PropertyRNA *RNA_struct_find_property(PointerRNA *ptr, const char *identifier);
 const struct ListBase *RNA_struct_defined_properties(StructRNA *srna);
 
@@ -347,12 +353,20 @@ const struct ListBase *RNA_struct_defined_functions(StructRNA *srna);
 
 /* Property Information */
 
-const char *RNA_property_identifier(PointerRNA *ptr, PropertyRNA *prop);
-PropertyType RNA_property_type(PointerRNA *ptr, PropertyRNA *prop);
-PropertySubType RNA_property_subtype(PointerRNA *ptr, PropertyRNA *prop);
-int RNA_property_flag(PointerRNA *ptr, PropertyRNA *prop);
+const char *RNA_property_identifier(PropertyRNA *prop);
+PropertyType RNA_property_type(PropertyRNA *prop);
+PropertySubType RNA_property_subtype(PropertyRNA *prop);
+int RNA_property_flag(PropertyRNA *prop);
+
+int RNA_property_array_length(PropertyRNA *prop);
+
+StructRNA *RNA_property_pointer_type(PropertyRNA *prop);
+int RNA_property_string_maxlength(PropertyRNA *prop);
 
-int RNA_property_array_length(PointerRNA *ptr, PropertyRNA *prop);
+const char *RNA_property_ui_name(PropertyRNA *prop);
+const char *RNA_property_ui_description(PropertyRNA *prop);
+
+/* Dynamic Property Information */
 
 void RNA_property_int_range(PointerRNA *ptr, PropertyRNA *prop, int *hardmin, int *hardmax);
 void RNA_property_int_ui_range(PointerRNA *ptr, PropertyRNA *prop, int *softmin, int *softmax, int *step);
@@ -360,16 +374,10 @@ void RNA_property_int_ui_range(PointerRNA *ptr, PropertyRNA *prop, int *softmin,
 void RNA_property_float_range(PointerRNA *ptr, PropertyRNA *prop, float *hardmin, float *hardmax);
 void RNA_property_float_ui_range(PointerRNA *ptr, PropertyRNA *prop, float *softmin, float *softmax, float *step, float *precision);
 
-int RNA_property_string_maxlength(PointerRNA *ptr, PropertyRNA *prop);
-StructRNA *RNA_property_pointer_type(PointerRNA *ptr, PropertyRNA *prop);
-
 void RNA_property_enum_items(PointerRNA *ptr, PropertyRNA *prop, const EnumPropertyItem **item, int *totitem);
 int RNA_property_enum_value(PointerRNA *ptr, PropertyRNA *prop, const char *identifier, int *value);
 int RNA_property_enum_identifier(PointerRNA *ptr, PropertyRNA *prop, const int value, const char **identifier);
 
-const char *RNA_property_ui_name(PointerRNA *ptr, PropertyRNA *prop);
-const char *RNA_property_ui_description(PointerRNA *ptr, PropertyRNA *prop);
-
 int RNA_property_editable(PointerRNA *ptr, PropertyRNA *prop);
 int RNA_property_animateable(PointerRNA *ptr, PropertyRNA *prop);
 int RNA_property_animated(PointerRNA *ptr, PropertyRNA *prop);
@@ -518,13 +526,14 @@ char *RNA_property_as_string(PointerRNA *ptr, PropertyRNA *prop);
 
 /* Function */
 
-const char *RNA_function_identifier(PointerRNA *ptr, FunctionRNA *func);
-PropertyRNA *RNA_function_return(PointerRNA *ptr, FunctionRNA *func);
-const char *RNA_function_ui_description(PointerRNA *ptr, FunctionRNA *func);
+const char *RNA_function_identifier(FunctionRNA *func);
+PropertyRNA *RNA_function_return(FunctionRNA *func);
+const char *RNA_function_ui_description(FunctionRNA *func);
+int RNA_function_flag(FunctionRNA *func);
 
 PropertyRNA *RNA_function_get_parameter(PointerRNA *ptr, FunctionRNA *func, int index);
 PropertyRNA *RNA_function_find_parameter(PointerRNA *ptr, FunctionRNA *func, const char *identifier);
-const struct ListBase *RNA_function_defined_parameters(PointerRNA *ptr, FunctionRNA *func);
+const struct ListBase *RNA_function_defined_parameters(FunctionRNA *func);
 
 /* Utility */