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/**
* $Id$
*
* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Contributor(s): Blender Foundation (2008).
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <stdlib.h>
#include <string.h>
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_dynstr.h"
#include "RNA_access.h"
#include "RNA_types.h"
#include "rna_internal.h"
/* Pointer */
void RNA_pointer_main_get(struct Main *main, struct PointerRNA *r_ptr)
{
r_ptr->data= main;
r_ptr->type= &RNA_Main;
r_ptr->id.data= NULL;
r_ptr->id.type= NULL;
}
static void rna_pointer_inherit_id(PointerRNA *parent, PointerRNA *ptr)
{
if(ptr->type && ptr->type->flag & STRUCT_ID) {
ptr->id.data= ptr->data;
ptr->id.type= ptr->type;
}
else {
ptr->id.data= parent->id.data;
ptr->id.type= parent->id.type;
}
}
/* Property */
int RNA_property_editable(PropertyRNA *prop, PointerRNA *ptr)
{
return (prop->flag & PROP_EDITABLE);
}
int RNA_property_evaluated(PropertyRNA *prop, PointerRNA *ptr)
{
return (prop->flag & PROP_EVALUATED);
}
void RNA_property_notify(PropertyRNA *prop, struct bContext *C, PointerRNA *ptr)
{
if(prop->notify)
prop->notify(C, ptr);
}
int RNA_property_boolean_get(PropertyRNA *prop, PointerRNA *ptr)
{
BooleanPropertyRNA *bprop= (BooleanPropertyRNA*)prop;
return bprop->get(ptr);
}
void RNA_property_boolean_set(PropertyRNA *prop, PointerRNA *ptr, int value)
{
BooleanPropertyRNA *bprop= (BooleanPropertyRNA*)prop;
bprop->set(ptr, value);
}
int RNA_property_boolean_get_array(PropertyRNA *prop, PointerRNA *ptr, int index)
{
BooleanPropertyRNA *bprop= (BooleanPropertyRNA*)prop;
return bprop->getarray(ptr, index);
}
void RNA_property_boolean_set_array(PropertyRNA *prop, PointerRNA *ptr, int index, int value)
{
BooleanPropertyRNA *bprop= (BooleanPropertyRNA*)prop;
bprop->setarray(ptr, index, value);
}
int RNA_property_int_get(PropertyRNA *prop, PointerRNA *ptr)
{
IntPropertyRNA *iprop= (IntPropertyRNA*)prop;
return iprop->get(ptr);
}
void RNA_property_int_set(PropertyRNA *prop, PointerRNA *ptr, int value)
{
IntPropertyRNA *iprop= (IntPropertyRNA*)prop;
iprop->set(ptr, value);
}
int RNA_property_int_get_array(PropertyRNA *prop, PointerRNA *ptr, int index)
{
IntPropertyRNA *iprop= (IntPropertyRNA*)prop;
return iprop->getarray(ptr, index);
}
void RNA_property_int_set_array(PropertyRNA *prop, PointerRNA *ptr, int index, int value)
{
IntPropertyRNA *iprop= (IntPropertyRNA*)prop;
iprop->setarray(ptr, index, value);
}
float RNA_property_float_get(PropertyRNA *prop, PointerRNA *ptr)
{
FloatPropertyRNA *fprop= (FloatPropertyRNA*)prop;
return fprop->get(ptr);
}
void RNA_property_float_set(PropertyRNA *prop, PointerRNA *ptr, float value)
{
FloatPropertyRNA *fprop= (FloatPropertyRNA*)prop;
fprop->set(ptr, value);
}
float RNA_property_float_get_array(PropertyRNA *prop, PointerRNA *ptr, int index)
{
FloatPropertyRNA *fprop= (FloatPropertyRNA*)prop;
return fprop->getarray(ptr, index);
}
void RNA_property_float_set_array(PropertyRNA *prop, PointerRNA *ptr, int index, float value)
{
FloatPropertyRNA *fprop= (FloatPropertyRNA*)prop;
fprop->setarray(ptr, index, value);
}
void RNA_property_string_get(PropertyRNA *prop, PointerRNA *ptr, char *value)
{
StringPropertyRNA *sprop= (StringPropertyRNA*)prop;
sprop->get(ptr, value);
}
char *RNA_property_string_get_alloc(PropertyRNA *prop, PointerRNA *ptr, char *fixedbuf, int fixedlen)
{
char *buf;
int length;
length= RNA_property_string_length(prop, ptr);
if(length+1 < fixedlen)
buf= fixedbuf;
else
buf= MEM_callocN(sizeof(char)*(length+1), "RNA_string_get_alloc");
RNA_property_string_get(prop, ptr, buf);
return buf;
}
int RNA_property_string_length(PropertyRNA *prop, PointerRNA *ptr)
{
StringPropertyRNA *sprop= (StringPropertyRNA*)prop;
return sprop->length(ptr);
}
void RNA_property_string_set(PropertyRNA *prop, PointerRNA *ptr, const char *value)
{
StringPropertyRNA *sprop= (StringPropertyRNA*)prop;
sprop->set(ptr, value);
}
int RNA_property_enum_get(PropertyRNA *prop, PointerRNA *ptr)
{
EnumPropertyRNA *eprop= (EnumPropertyRNA*)prop;
return eprop->get(ptr);
}
void RNA_property_enum_set(PropertyRNA *prop, PointerRNA *ptr, int value)
{
EnumPropertyRNA *eprop= (EnumPropertyRNA*)prop;
eprop->set(ptr, value);
}
void RNA_property_pointer_get(PropertyRNA *prop, PointerRNA *ptr, PointerRNA *r_ptr)
{
PointerPropertyRNA *pprop= (PointerPropertyRNA*)prop;
r_ptr->data= pprop->get(ptr);
if(r_ptr->data) {
r_ptr->type= RNA_property_pointer_type(prop, ptr);
rna_pointer_inherit_id(ptr, r_ptr);
}
else
memset(r_ptr, 0, sizeof(*r_ptr));
}
void RNA_property_pointer_set(PropertyRNA *prop, PointerRNA *ptr, PointerRNA *ptr_value)
{
PointerPropertyRNA *pprop= (PointerPropertyRNA*)prop;
pprop->set(ptr, ptr_value->data);
}
StructRNA *RNA_property_pointer_type(PropertyRNA *prop, PointerRNA *ptr)
{
PointerPropertyRNA *pprop= (PointerPropertyRNA*)prop;
if(pprop->type)
return pprop->type(ptr);
return pprop->structtype;
}
void RNA_property_collection_begin(PropertyRNA *prop, CollectionPropertyIterator *iter, PointerRNA *ptr)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
iter->pointer= *ptr;
cprop->begin(iter, ptr);
}
void RNA_property_collection_next(PropertyRNA *prop, CollectionPropertyIterator *iter)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
cprop->next(iter);
}
void RNA_property_collection_end(PropertyRNA *prop, CollectionPropertyIterator *iter)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
if(cprop->end)
cprop->end(iter);
}
void RNA_property_collection_get(PropertyRNA *prop, CollectionPropertyIterator *iter, PointerRNA *r_ptr)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
r_ptr->data= cprop->get(iter);
if(r_ptr->data) {
r_ptr->type= RNA_property_collection_type(prop, iter);
rna_pointer_inherit_id(&iter->pointer, r_ptr);
}
else
memset(r_ptr, 0, sizeof(*r_ptr));
}
StructRNA *RNA_property_collection_type(PropertyRNA *prop, CollectionPropertyIterator *iter)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
if(cprop->type)
return cprop->type(iter);
return cprop->structtype;
}
int RNA_property_collection_length(PropertyRNA *prop, PointerRNA *ptr)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
if(cprop->length) {
return cprop->length(ptr);
}
else {
CollectionPropertyIterator iter;
int length= 0;
for(cprop->begin(&iter, ptr); iter.valid; cprop->next(&iter))
length++;
if(cprop->end)
cprop->end(&iter);
return length;
}
}
int RNA_property_collection_lookup_int(PropertyRNA *prop, PointerRNA *ptr, int key, PointerRNA *r_ptr)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
if(cprop->lookupint) {
/* we have a callback defined, use it */
r_ptr->data= cprop->lookupint(ptr, key, &r_ptr->type);
if(r_ptr->data) {
if(!r_ptr->type)
r_ptr->type= cprop->structtype;
rna_pointer_inherit_id(ptr, r_ptr);
return 1;
}
else {
memset(r_ptr, 0, sizeof(*r_ptr));
return 0;
}
}
else {
/* no callback defined, just iterate and find the nth item */
CollectionPropertyIterator iter;
int i;
RNA_property_collection_begin(prop, &iter, ptr);
for(i=0; iter.valid; RNA_property_collection_next(prop, &iter), i++) {
if(i == key) {
RNA_property_collection_get(prop, &iter, r_ptr);
break;
}
}
RNA_property_collection_end(prop, &iter);
if(!iter.valid)
memset(r_ptr, 0, sizeof(*r_ptr));
return iter.valid;
}
}
int RNA_property_collection_lookup_string(PropertyRNA *prop, PointerRNA *ptr, const char *key, PointerRNA *r_ptr)
{
CollectionPropertyRNA *cprop= (CollectionPropertyRNA*)prop;
if(cprop->lookupstring) {
/* we have a callback defined, use it */
r_ptr->data= cprop->lookupstring(ptr, key, &r_ptr->type);
if(r_ptr->data) {
if(!r_ptr->type)
r_ptr->type= cprop->structtype;
rna_pointer_inherit_id(ptr, r_ptr);
return 1;
}
else {
memset(r_ptr, 0, sizeof(*r_ptr));
return 0;
}
}
else {
/* no callback defined, compare with name properties if they exist */
CollectionPropertyIterator iter;
PropertyRNA *nameprop;
PointerRNA iterptr;
char name[256], *nameptr;
int length, alloc, found= 0;
RNA_property_collection_begin(prop, &iter, ptr);
for(; iter.valid; RNA_property_collection_next(prop, &iter)) {
RNA_property_collection_get(prop, &iter, &iterptr);
if(iterptr.data && iterptr.type->nameproperty) {
nameprop= iterptr.type->nameproperty;
length= RNA_property_string_length(nameprop, &iterptr);
if(sizeof(name)-1 < length) {
nameptr= name;
alloc= 0;
}
else {
nameptr= MEM_mallocN(sizeof(char)*length+1, "RNA_lookup_string");
alloc= 1;
}
RNA_property_string_get(nameprop, &iterptr, nameptr);
if(strcmp(nameptr, key) == 0) {
*r_ptr= iterptr;
found= 1;
}
if(alloc)
MEM_freeN(nameptr);
if(found)
break;
}
}
RNA_property_collection_end(prop, &iter);
if(!iter.valid)
memset(r_ptr, 0, sizeof(*r_ptr));
return iter.valid;
}
}
/* Standard iterator functions */
void rna_iterator_listbase_begin(CollectionPropertyIterator *iter, ListBase *lb)
{
iter->internal= lb->first;
iter->valid= (iter->internal != NULL);
}
void rna_iterator_listbase_next(CollectionPropertyIterator *iter)
{
iter->internal= ((Link*)iter->internal)->next;
iter->valid= (iter->internal != NULL);
}
void *rna_iterator_listbase_get(CollectionPropertyIterator *iter)
{
return iter->internal;
}
void rna_iterator_array_begin(CollectionPropertyIterator *iter, void *ptr, int itemsize, int length)
{
ArrayIterator *internal;
internal= MEM_callocN(sizeof(ArrayIterator), "ArrayIterator");
internal->ptr= ptr;
internal->endptr= ((char*)ptr)+length*itemsize;
internal->itemsize= itemsize;
iter->internal= internal;
iter->valid= (internal->ptr != internal->endptr);
}
void rna_iterator_array_next(CollectionPropertyIterator *iter)
{
ArrayIterator *internal= iter->internal;
internal->ptr += internal->itemsize;
iter->valid= (internal->ptr != internal->endptr);
}
void *rna_iterator_array_get(CollectionPropertyIterator *iter)
{
ArrayIterator *internal= iter->internal;
return internal->ptr;
}
void rna_iterator_array_end(CollectionPropertyIterator *iter)
{
MEM_freeN(iter->internal);
}
/* RNA Path - Experiment */
static char *rna_path_token(const char **path, char *fixedbuf, int fixedlen, int bracket)
{
const char *p;
char *buf;
int i, j, len, escape;
len= 0;
if(bracket) {
/* get data between [], check escaping ] with \] */
if(**path == '[') (*path)++;
else return NULL;
p= *path;
escape= 0;
while(*p && (*p != ']' || escape)) {
escape= (*p == '\\');
len++;
p++;
}
if(*p != ']') return NULL;
}
else {
/* get data until . or [ */
p= *path;
while(*p && *p != '.' && *p != '[') {
len++;
p++;
}
}
/* empty, return */
if(len == 0)
return NULL;
/* try to use fixed buffer if possible */
if(len+1 < fixedlen)
buf= fixedbuf;
else
buf= MEM_callocN(sizeof(char)*(len+1), "rna_path_token");
/* copy string, taking into account escaped ] */
for(p=*path, i=0, j=0; i<len; i++, p++) {
if(*p == '\\' && *(p+1) == ']');
else buf[j++]= *p;
}
buf[j]= 0;
/* set path to start of next token */
if(*p == ']') p++;
if(*p == '.') p++;
*path= p;
return buf;
}
int RNA_path_resolve(PointerRNA *ptr, const char *path, PointerRNA *r_ptr, PropertyRNA **r_prop)
{
PropertyRNA *prop;
PointerRNA curptr, nextptr;
char fixedbuf[256], *token;
int len, intkey;
prop= NULL;
curptr= *ptr;
while(*path) {
/* look up property name in current struct */
token= rna_path_token(&path, fixedbuf, sizeof(fixedbuf), 0);
if(!token)
return 0;
for(prop=curptr.type->properties.first; prop; prop=prop->next)
if(strcmp(token, prop->cname) == 0)
break;
if(token != fixedbuf)
MEM_freeN(token);
if(!prop)
return 0;
/* now look up the value of this property if it is a pointer or
* collection, otherwise return the property rna so that the
* caller can read the value of the property itself */
if(prop->type == PROP_POINTER) {
RNA_property_pointer_get(prop, &curptr, &nextptr);
if(nextptr.data)
curptr= nextptr;
else
return 0;
}
else if(prop->type == PROP_COLLECTION && *path) {
/* resolve the lookup with [] brackets */
token= rna_path_token(&path, fixedbuf, sizeof(fixedbuf), 1);
if(!token)
return 0;
len= strlen(token);
/* check for "" to see if it is a string */
if(len >= 2 && *token == '"' && token[len-2] == '"') {
/* strip away "" */
token[len-2]= 0;
RNA_property_collection_lookup_string(prop, &curptr, token+1, &nextptr);
}
else {
/* otherwise do int lookup */
intkey= atoi(token);
RNA_property_collection_lookup_int(prop, &curptr, intkey, &nextptr);
}
if(token != fixedbuf)
MEM_freeN(token);
if(nextptr.data)
curptr= nextptr;
else
return 0;
}
}
*r_ptr= curptr;
*r_prop= prop;
return 1;
}
char *RNA_path_append(const char *path, PropertyRNA *prop, int intkey, const char *strkey)
{
DynStr *dynstr;
const char *s;
char appendstr[128], *result;
dynstr= BLI_dynstr_new();
/* add .cname */
if(path) {
BLI_dynstr_append(dynstr, (char*)path);
if(*path)
BLI_dynstr_append(dynstr, ".");
}
BLI_dynstr_append(dynstr, (char*)prop->cname);
if(prop->type == PROP_COLLECTION) {
/* add ["strkey"] or [intkey] */
BLI_dynstr_append(dynstr, "[");
if(strkey) {
BLI_dynstr_append(dynstr, "\"");
for(s=strkey; *s; s++) {
if(*s == '[') {
appendstr[0]= '\\';
appendstr[1]= *s;
appendstr[2]= 0;
}
else {
appendstr[0]= *s;
appendstr[1]= 0;
}
BLI_dynstr_append(dynstr, appendstr);
}
BLI_dynstr_append(dynstr, "\"");
}
else {
sprintf(appendstr, "%d", intkey);
BLI_dynstr_append(dynstr, appendstr);
}
BLI_dynstr_append(dynstr, "]");
}
result= BLI_dynstr_get_cstring(dynstr);
BLI_dynstr_free(dynstr);
return result;
}
char *RNA_path_back(const char *path)
{
char fixedbuf[256];
const char *previous, *current;
char *result, *token;
int i;
if(!path)
return NULL;
previous= NULL;
current= path;
/* parse token by token until the end, then we back up to the previous
* position and strip of the next token to get the path one step back */
while(*current) {
token= rna_path_token(¤t, fixedbuf, sizeof(fixedbuf), 0);
if(!token)
return NULL;
if(token != fixedbuf)
MEM_freeN(token);
/* in case of collection we also need to strip off [] */
token= rna_path_token(¤t, fixedbuf, sizeof(fixedbuf), 1);
if(token && token != fixedbuf)
MEM_freeN(token);
if(!*current)
break;
previous= current;
}
if(!previous)
return NULL;
/* copy and strip off last token */
i= previous - path;
result= BLI_strdup(path);
if(i > 0 && result[i-1] == '.') i--;
result[i]= 0;
return result;
}
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