rna_internal_types.h

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/*
 * 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.
 */
 
#pragma once
 
#include "DNA_listBase.h"
 
#include "RNA_types.h"
 
struct BlenderRNA;
struct CollectionPropertyIterator;
struct ContainerRNA;
struct FunctionRNA;
struct GHash;
struct IDOverrideLibrary;
struct IDOverrideLibraryPropertyOperation;
struct IDProperty;
struct Main;
struct PointerRNA;
struct PropertyRNA;
struct ReportList;
struct Scene;
struct StructRNA;
struct bContext;
 
typedef struct IDProperty IDProperty;
 
/* store local properties here */
#define RNA_IDP_UI "_RNA_UI"
 
/* Function Callbacks */
 
typedef void (*UpdateFunc)(struct Main *main, struct Scene *scene, struct PointerRNA *ptr);
typedef void (*ContextPropUpdateFunc)(struct bContext *C,
                                      struct PointerRNA *ptr,
                                      struct PropertyRNA *prop);
typedef void (*ContextUpdateFunc)(struct bContext *C, struct PointerRNA *ptr);
typedef int (*EditableFunc)(struct PointerRNA *ptr, const char **r_info);
typedef int (*ItemEditableFunc)(struct PointerRNA *ptr, int index);
typedef struct IDProperty *(*IDPropertiesFunc)(struct PointerRNA *ptr, bool create);
typedef struct StructRNA *(*StructRefineFunc)(struct PointerRNA *ptr);
typedef char *(*StructPathFunc)(struct PointerRNA *ptr);
 
typedef int (*PropArrayLengthGetFunc)(struct PointerRNA *ptr, int length[RNA_MAX_ARRAY_DIMENSION]);
typedef bool (*PropBooleanGetFunc)(struct PointerRNA *ptr);
typedef void (*PropBooleanSetFunc)(struct PointerRNA *ptr, bool value);
typedef void (*PropBooleanArrayGetFunc)(struct PointerRNA *ptr, bool *values);
typedef void (*PropBooleanArraySetFunc)(struct PointerRNA *ptr, const bool *values);
typedef int (*PropIntGetFunc)(struct PointerRNA *ptr);
typedef void (*PropIntSetFunc)(struct PointerRNA *ptr, int value);
typedef void (*PropIntArrayGetFunc)(struct PointerRNA *ptr, int *values);
typedef void (*PropIntArraySetFunc)(struct PointerRNA *ptr, const int *values);
typedef void (*PropIntRangeFunc)(
    struct PointerRNA *ptr, int *min, int *max, int *softmin, int *softmax);
typedef float (*PropFloatGetFunc)(struct PointerRNA *ptr);
typedef void (*PropFloatSetFunc)(struct PointerRNA *ptr, float value);
typedef void (*PropFloatArrayGetFunc)(struct PointerRNA *ptr, float *values);
typedef void (*PropFloatArraySetFunc)(struct PointerRNA *ptr, const float *values);
typedef void (*PropFloatRangeFunc)(
    struct PointerRNA *ptr, float *min, float *max, float *softmin, float *softmax);
typedef void (*PropStringGetFunc)(struct PointerRNA *ptr, char *value);
typedef int (*PropStringLengthFunc)(struct PointerRNA *ptr);
typedef void (*PropStringSetFunc)(struct PointerRNA *ptr, const char *value);
typedef int (*PropEnumGetFunc)(struct PointerRNA *ptr);
typedef void (*PropEnumSetFunc)(struct PointerRNA *ptr, int value);
typedef const EnumPropertyItem *(*PropEnumItemFunc)(struct bContext *C,
                                                    struct PointerRNA *ptr,
                                                    struct PropertyRNA *prop,
                                                    bool *r_free);
typedef PointerRNA (*PropPointerGetFunc)(struct PointerRNA *ptr);
typedef StructRNA *(*PropPointerTypeFunc)(struct PointerRNA *ptr);
typedef void (*PropPointerSetFunc)(struct PointerRNA *ptr,
                                   const PointerRNA value,
                                   struct ReportList *reports);
typedef bool (*PropPointerPollFunc)(struct PointerRNA *ptr, const PointerRNA value);
typedef bool (*PropPointerPollFuncPy)(struct PointerRNA *ptr,
                                      const PointerRNA value,
                                      const PropertyRNA *prop);
typedef void (*PropCollectionBeginFunc)(struct CollectionPropertyIterator *iter,
                                        struct PointerRNA *ptr);
typedef void (*PropCollectionNextFunc)(struct CollectionPropertyIterator *iter);
typedef void (*PropCollectionEndFunc)(struct CollectionPropertyIterator *iter);
typedef PointerRNA (*PropCollectionGetFunc)(struct CollectionPropertyIterator *iter);
typedef int (*PropCollectionLengthFunc)(struct PointerRNA *ptr);
typedef int (*PropCollectionLookupIntFunc)(struct PointerRNA *ptr,
                                           int key,
                                           struct PointerRNA *r_ptr);
typedef int (*PropCollectionLookupStringFunc)(struct PointerRNA *ptr,
                                              const char *key,
                                              struct PointerRNA *r_ptr);
typedef int (*PropCollectionAssignIntFunc)(struct PointerRNA *ptr,
                                           int key,
                                           const struct PointerRNA *assign_ptr);
 
/* extended versions with PropertyRNA argument */
typedef bool (*PropBooleanGetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop);
typedef void (*PropBooleanSetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop, bool value);
typedef void (*PropBooleanArrayGetFuncEx)(struct PointerRNA *ptr,
                                          struct PropertyRNA *prop,
                                          bool *values);
typedef void (*PropBooleanArraySetFuncEx)(struct PointerRNA *ptr,
                                          struct PropertyRNA *prop,
                                          const bool *values);
typedef int (*PropIntGetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop);
typedef void (*PropIntSetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop, int value);
typedef void (*PropIntArrayGetFuncEx)(struct PointerRNA *ptr,
                                      struct PropertyRNA *prop,
                                      int *values);
typedef void (*PropIntArraySetFuncEx)(struct PointerRNA *ptr,
                                      struct PropertyRNA *prop,
                                      const int *values);
typedef void (*PropIntRangeFuncEx)(struct PointerRNA *ptr,
                                   struct PropertyRNA *prop,
                                   int *min,
                                   int *max,
                                   int *softmin,
                                   int *softmax);
typedef float (*PropFloatGetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop);
typedef void (*PropFloatSetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop, float value);
typedef void (*PropFloatArrayGetFuncEx)(struct PointerRNA *ptr,
                                        struct PropertyRNA *prop,
                                        float *values);
typedef void (*PropFloatArraySetFuncEx)(struct PointerRNA *ptr,
                                        struct PropertyRNA *prop,
                                        const float *values);
typedef void (*PropFloatRangeFuncEx)(struct PointerRNA *ptr,
                                     struct PropertyRNA *prop,
                                     float *min,
                                     float *max,
                                     float *softmin,
                                     float *softmax);
typedef void (*PropStringGetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop, char *value);
typedef int (*PropStringLengthFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop);
typedef void (*PropStringSetFuncEx)(struct PointerRNA *ptr,
                                    struct PropertyRNA *prop,
                                    const char *value);
typedef int (*PropEnumGetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop);
typedef void (*PropEnumSetFuncEx)(struct PointerRNA *ptr, struct PropertyRNA *prop, int value);
 
/* Handling override operations, and also comparison. */
 
typedef struct PropertyRNAOrID {
  PointerRNA ptr;
 
  PropertyRNA *rawprop;
  PropertyRNA *rnaprop;
  IDProperty *idprop;
  const char *identifier;
 
  bool is_idprop;
  bool is_set;
 
  bool is_array;
  uint array_len;
} PropertyRNAOrID;
 
typedef int (*RNAPropOverrideDiff)(struct Main *bmain,
                                   struct PropertyRNAOrID *prop_a,
                                   struct PropertyRNAOrID *prop_b,
                                   const int mode,
                                   struct IDOverrideLibrary *override,
                                   const char *rna_path,
                                   const size_t rna_path_len,
                                   const int flags,
                                   bool *r_override_changed);
 
typedef bool (*RNAPropOverrideStore)(struct Main *bmain,
                                     struct PointerRNA *ptr_local,
                                     struct PointerRNA *ptr_reference,
                                     struct PointerRNA *ptr_storage,
                                     struct PropertyRNA *prop_local,
                                     struct PropertyRNA *prop_reference,
                                     struct PropertyRNA *prop_storage,
                                     const int len_local,
                                     const int len_reference,
                                     const int len_storage,
                                     struct IDOverrideLibraryPropertyOperation *opop);
 
typedef bool (*RNAPropOverrideApply)(struct Main *bmain,
                                     struct PointerRNA *ptr_dst,
                                     struct PointerRNA *ptr_src,
                                     struct PointerRNA *ptr_storage,
                                     struct PropertyRNA *prop_dst,
                                     struct PropertyRNA *prop_src,
                                     struct PropertyRNA *prop_storage,
                                     const int len_dst,
                                     const int len_src,
                                     const int len_storage,
                                     struct PointerRNA *ptr_item_dst,
                                     struct PointerRNA *ptr_item_src,
                                     struct PointerRNA *ptr_item_storage,
                                     struct IDOverrideLibraryPropertyOperation *opop);
 
/* Container - generic abstracted container of RNA properties */
typedef struct ContainerRNA {
  void *next, *prev;
 
  struct GHash *prophash;
  ListBase properties;
} ContainerRNA;
 
struct FunctionRNA {
  /* structs are containers of properties */
  ContainerRNA cont;
 
  /* unique identifier, keep after 'cont' */
  const char *identifier;
  /* various options */
  int flag;
 
  /* single line description, displayed in the tooltip for example */
  const char *description;
 
  /* callback to execute the function */
  CallFunc call;
 
  /* parameter for the return value
   * note: this is only the C return value, rna functions can have multiple return values */
  PropertyRNA *c_ret;
};
 
struct PropertyRNA {
  struct PropertyRNA *next, *prev;
 
  /* magic bytes to distinguish with IDProperty */
  int magic;
 
  /* unique identifier */
  const char *identifier;
  /* various options */
  int flag;
  /* various override options */
  int flag_override;
  /* Function parameters flags. */
  short flag_parameter;
  /* Internal ("private") flags. */
  short flag_internal;
  /* The subset of StructRNA.prop_tag_defines values that applies to this property. */
  short tags;
 
  /* user readable name */
  const char *name;
  /* single line description, displayed in the tooltip for example */
  const char *description;
  /* icon ID */
  int icon;
  /* context for translation */
  const char *translation_context;
 
  /* property type as it appears to the outside */
  PropertyType type;
  /* subtype, 'interpretation' of the property */
  PropertySubType subtype;
  /* if non-NULL, overrides arraylength. Must not return 0? */
  PropArrayLengthGetFunc getlength;
  /* dimension of array */
  unsigned int arraydimension;
  /* array lengths lengths for all dimensions (when arraydimension > 0) */
  unsigned int arraylength[RNA_MAX_ARRAY_DIMENSION];
  unsigned int totarraylength;
 
  /* callback for updates on change */
  UpdateFunc update;
  int noteflag;
 
  /* Callback for testing if editable. Its r_info parameter can be used to
   * return info on editable state that might be shown to user. E.g. tooltips
   * of disabled buttons can show reason why button is disabled using this. */
  EditableFunc editable;
  /* callback for testing if array-item editable (if applicable) */
  ItemEditableFunc itemeditable;
 
  /* Override handling callbacks (diff is also used for comparison). */
  RNAPropOverrideDiff override_diff;
  RNAPropOverrideStore override_store;
  RNAPropOverrideApply override_apply;
 
  /* raw access */
  int rawoffset;
  RawPropertyType rawtype;
 
  /* This is used for accessing props/functions of this property
   * any property can have this but should only be used for collections and arrays
   * since python will convert int/bool/pointer's */
  struct StructRNA *srna; /* attributes attached directly to this collection */
 
  /* python handle to hold all callbacks
   * (in a pointer array at the moment, may later be a tuple) */
  void *py_data;
};
 
/* internal flags WARNING! 16bits only! */
typedef enum PropertyFlagIntern {
  PROP_INTERN_BUILTIN = (1 << 0),
  PROP_INTERN_RUNTIME = (1 << 1),
  PROP_INTERN_RAW_ACCESS = (1 << 2),
  PROP_INTERN_RAW_ARRAY = (1 << 3),
  PROP_INTERN_FREE_POINTERS = (1 << 4),
  /* Negative mirror of PROP_PTR_NO_OWNERSHIP, used to prevent automatically setting that one in
   * makesrna when pointer is an ID... */
  PROP_INTERN_PTR_OWNERSHIP_FORCED = (1 << 5),
} PropertyFlagIntern;
 
/* Property Types */
 
typedef struct BoolPropertyRNA {
  PropertyRNA property;
 
  PropBooleanGetFunc get;
  PropBooleanSetFunc set;
  PropBooleanArrayGetFunc getarray;
  PropBooleanArraySetFunc setarray;
 
  PropBooleanGetFuncEx get_ex;
  PropBooleanSetFuncEx set_ex;
  PropBooleanArrayGetFuncEx getarray_ex;
  PropBooleanArraySetFuncEx setarray_ex;
 
  bool defaultvalue;
  const bool *defaultarray;
} BoolPropertyRNA;
 
typedef struct IntPropertyRNA {
  PropertyRNA property;
 
  PropIntGetFunc get;
  PropIntSetFunc set;
  PropIntArrayGetFunc getarray;
  PropIntArraySetFunc setarray;
  PropIntRangeFunc range;
 
  PropIntGetFuncEx get_ex;
  PropIntSetFuncEx set_ex;
  PropIntArrayGetFuncEx getarray_ex;
  PropIntArraySetFuncEx setarray_ex;
  PropIntRangeFuncEx range_ex;
 
  int softmin, softmax;
  int hardmin, hardmax;
  int step;
 
  int defaultvalue;
  const int *defaultarray;
} IntPropertyRNA;
 
typedef struct FloatPropertyRNA {
  PropertyRNA property;
 
  PropFloatGetFunc get;
  PropFloatSetFunc set;
  PropFloatArrayGetFunc getarray;
  PropFloatArraySetFunc setarray;
  PropFloatRangeFunc range;
 
  PropFloatGetFuncEx get_ex;
  PropFloatSetFuncEx set_ex;
  PropFloatArrayGetFuncEx getarray_ex;
  PropFloatArraySetFuncEx setarray_ex;
  PropFloatRangeFuncEx range_ex;
 
  float softmin, softmax;
  float hardmin, hardmax;
  float step;
  int precision;
 
  float defaultvalue;
  const float *defaultarray;
} FloatPropertyRNA;
 
typedef struct StringPropertyRNA {
  PropertyRNA property;
 
  PropStringGetFunc get;
  PropStringLengthFunc length;
  PropStringSetFunc set;
 
  PropStringGetFuncEx get_ex;
  PropStringLengthFuncEx length_ex;
  PropStringSetFuncEx set_ex;
 
  int maxlength; /* includes string terminator! */
 
  const char *defaultvalue;
} StringPropertyRNA;
 
typedef struct EnumPropertyRNA {
  PropertyRNA property;
 
  PropEnumGetFunc get;
  PropEnumSetFunc set;
  PropEnumItemFunc item_fn;
 
  PropEnumGetFuncEx get_ex;
  PropEnumSetFuncEx set_ex;
 
  const EnumPropertyItem *item;
  int totitem;
 
  int defaultvalue;
  const char *native_enum_type;
} EnumPropertyRNA;
 
typedef struct PointerPropertyRNA {
  PropertyRNA property;
 
  PropPointerGetFunc get;
  PropPointerSetFunc set;
  PropPointerTypeFunc type_fn;
  PropPointerPollFunc poll;
 
  struct StructRNA *type;
} PointerPropertyRNA;
 
typedef struct CollectionPropertyRNA {
  PropertyRNA property;
 
  PropCollectionBeginFunc begin;
  PropCollectionNextFunc next;
  PropCollectionEndFunc end; /* optional */
  PropCollectionGetFunc get;
  PropCollectionLengthFunc length;             /* optional */
  PropCollectionLookupIntFunc lookupint;       /* optional */
  PropCollectionLookupStringFunc lookupstring; /* optional */
  PropCollectionAssignIntFunc assignint;       /* optional */
 
  struct StructRNA *item_type; /* the type of this item */
} CollectionPropertyRNA;
 
/* changes to this struct require updating rna_generate_struct in makesrna.c */
struct StructRNA {
  /* structs are containers of properties */
  ContainerRNA cont;
 
  /* unique identifier, keep after 'cont' */
  const char *identifier;
 
  void *py_type;
  void *blender_type;
 
  /* various options */
  int flag;
  /* Each StructRNA type can define own tags which properties can set
   * (PropertyRNA.tags) for changed behavior based on struct-type. */
  const EnumPropertyItem *prop_tag_defines;
 
  /* user readable name */
  const char *name;
  /* single line description, displayed in the tooltip for example */
  const char *description;
  /* context for translation */
  const char *translation_context;
  /* icon ID */
  int icon;
 
  /* property that defines the name */
  PropertyRNA *nameproperty;
 
  /* property to iterate over properties */
  PropertyRNA *iteratorproperty;
 
  /* struct this is derivedfrom */
  struct StructRNA *base;
 
  /* only use for nested structs, where both the parent and child access
   * the same C Struct but nesting is used for grouping properties.
   * The parent property is used so we know NULL checks are not needed,
   * and that this struct will never exist without its parent */
  struct StructRNA *nested;
 
  /* function to give the more specific type */
  StructRefineFunc refine;
 
  /* function to find path to this struct in an ID */
  StructPathFunc path;
 
  /* function to register/unregister subclasses */
  StructRegisterFunc reg;
  StructUnregisterFunc unreg;
  StructInstanceFunc instance;
 
  /* callback to get id properties */
  IDPropertiesFunc idproperties;
 
  /* functions of this struct */
  ListBase functions;
};
 
/* Blender RNA
 *
 * Root RNA data structure that lists all struct types. */
 
struct BlenderRNA {
  ListBase structs;
  /* A map of structs: {StructRNA.identifier -> StructRNA}
   * These are ensured to have unique names (with STRUCT_PUBLIC_NAMESPACE enabled). */
  struct GHash *structs_map;
  /* Needed because types with an empty identifier aren't included in 'structs_map'. */
  unsigned int structs_len;
};
 
#define CONTAINER_RNA_ID(cont) (*(const char **)(((ContainerRNA *)(cont)) + 1))