pdf_obj *
pdf_copy_dict(fz_context *ctx, pdf_obj *obj)
{
pdf_document *doc;
pdf_obj *dict;
int i, n;
RESOLVE(obj);
if (!OBJ_IS_DICT(obj))
fz_throw(ctx, FZ_ERROR_GENERIC, "not a dict (%s)", pdf_objkindstr(obj));
doc = DICT(obj)->doc;
n = pdf_dict_len(ctx, obj);
dict = pdf_new_dict(ctx, doc, n);
fz_try(ctx)
for (i = 0; i < n; i++)
pdf_dict_put(ctx, dict, pdf_dict_get_key(ctx, obj, i), pdf_dict_get_val(ctx, obj, i));
fz_catch(ctx)
{
pdf_drop_obj(ctx, dict);
fz_rethrow(ctx);
}
return dict;
}
int
pdf_dict_len(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
if (!OBJ_IS_DICT(obj))
return 0;
return DICT(obj)->len;
}
pdf_obj *
pdf_dict_get_val(fz_context *ctx, pdf_obj *obj, int i)
{
RESOLVE(obj);
if (!OBJ_IS_DICT(obj))
return NULL;
if (i < 0 || i >= DICT(obj)->len)
return NULL;
return DICT(obj)->items[i].v;
}
void
pdf_dict_put_val_null(fz_context *ctx, pdf_obj *obj, int idx)
{
RESOLVE(obj);
if (!OBJ_IS_DICT(obj))
fz_throw(ctx, FZ_ERROR_GENERIC, "not a dict (%s)", pdf_objkindstr(obj));
if (idx < 0 || idx >= DICT(obj)->len)
fz_throw(ctx, FZ_ERROR_GENERIC, "index out of bounds");
prepare_object_for_alteration(ctx, obj, NULL);
pdf_drop_obj(ctx, DICT(obj)->items[idx].v);
DICT(obj)->items[idx].v = PDF_OBJ_NULL;
}
int pdf_is_dict(fz_context *ctx, pdf_obj *obj)
{
RESOLVE(obj);
return OBJ_IS_DICT(obj);
}