static void node_generic_update_cb(void *calldata, ID *owner_id, bNodeTree *ntree)
{
NodeUpdateCalldata *cd= (NodeUpdateCalldata*)calldata;
/* check if nodetree uses the group stored in calldata */
if (has_nodetree(ntree, cd->ntree))
ED_node_changed_update(owner_id, cd->node);
}
void ED_node_generic_update(Main *bmain, bNodeTree *ntree, bNode *node)
{
Material *ma;
Tex *tex;
Scene *sce;
/* look through all datablocks, to support groups */
for(ma=bmain->mat.first; ma; ma=ma->id.next)
if(ma->nodetree && ma->use_nodes && has_nodetree(ma->nodetree, ntree))
ED_node_changed_update(&ma->id, node);
for(tex=bmain->tex.first; tex; tex=tex->id.next)
if(tex->nodetree && tex->use_nodes && has_nodetree(tex->nodetree, ntree))
ED_node_changed_update(&tex->id, node);
for(sce=bmain->scene.first; sce; sce=sce->id.next)
if(sce->nodetree && sce->use_nodes && has_nodetree(sce->nodetree, ntree))
ED_node_changed_update(&sce->id, node);
if(ntree->type == NTREE_TEXTURE)
ntreeTexCheckCyclics(ntree);
}
static int has_nodetree(bNodeTree *ntree, bNodeTree *lookup)
{
bNode *node;
if(ntree == lookup)
return 1;
for(node=ntree->nodes.first; node; node=node->next)
if(node->type == NODE_GROUP && node->id)
if(has_nodetree((bNodeTree*)node->id, lookup))
return 1;
return 0;
}