diff options
Diffstat (limited to 'source/blender/editors/space_node/node_group.cc')
| -rw-r--r-- | source/blender/editors/space_node/node_group.cc | 93 |
1 files changed, 75 insertions, 18 deletions
diff --git a/source/blender/editors/space_node/node_group.cc b/source/blender/editors/space_node/node_group.cc index aedceb1d368..329f78860a4 100644 --- a/source/blender/editors/space_node/node_group.cc +++ b/source/blender/editors/space_node/node_group.cc @@ -14,6 +14,7 @@ #include "BLI_linklist.h" #include "BLI_listbase.h" +#include "BLI_map.hh" #include "BLI_math_vec_types.hh" #include "BLI_string.h" #include "BLI_vector.hh" @@ -735,6 +736,74 @@ static int node_get_selected_minmax( return totselect; } +/** + * Redirect a link that are connecting a non-selected node to selected one. + * Create new socket or reuse an existing one that was connected from the same input. + * The output sockets of group nodes usually have consciously given names so they have + * precedence over socket names the link points to. + * + * \param ntree: The node tree that the node group is being created from. + * \param ngroup: The node tree of the new node group. + * \param gnode: The new group node in the original tree. + * \param input_node: The input node of the new node group. + * \param link: The incoming link that needs to be altered. + * \param reusable_sockets: Map for input socket interface lookup. + */ +static void node_group_make_redirect_incoming_link( + bNodeTree &ntree, + bNodeTree *ngroup, + bNode *gnode, + bNode *input_node, + bNodeLink *link, + Map<bNodeSocket *, bNodeSocket *> &reusable_sockets) +{ + bNodeSocket *input_socket = reusable_sockets.lookup_default(link->fromsock, nullptr); + if (input_socket) { + /* The incoming link is from a socket that has already been linked to + * a socket interface of the input node. + * Change the source of the link to the previously created socket interface. + * Move the link into the node tree of the new group. */ + link->fromnode = input_node; + link->fromsock = input_socket; + BLI_remlink(&ntree.links, link); + BLI_addtail(&ngroup->links, link); + } + else { + bNode *node_for_typeinfo = nullptr; + bNodeSocket *socket_for_typeinfo = nullptr; + /* Find a socket where typeinfo and name may come from. */ + node_socket_skip_reroutes( + &ntree.links, link->tonode, link->tosock, &node_for_typeinfo, &socket_for_typeinfo); + bNodeSocket *socket_for_naming = socket_for_typeinfo; + + /* Use the name of group node output sockets. */ + if (ELEM(link->fromnode->type, NODE_GROUP_INPUT, NODE_GROUP, NODE_CUSTOM_GROUP)) { + socket_for_naming = link->fromsock; + } + + bNodeSocket *iosock = ntreeAddSocketInterfaceFromSocketWithName(ngroup, + node_for_typeinfo, + socket_for_typeinfo, + socket_for_naming->idname, + socket_for_naming->name); + + /* Update the group node and interface sockets so the new interface socket can be linked. */ + node_group_update(&ntree, gnode); + node_group_input_update(ngroup, input_node); + + /* Create new internal link. */ + bNodeSocket *input_sock = node_group_input_find_socket(input_node, iosock->identifier); + nodeAddLink(ngroup, input_node, input_sock, link->tonode, link->tosock); + + /* Redirect external link. */ + link->tonode = gnode; + link->tosock = node_group_find_input_socket(gnode, iosock->identifier); + + /* Remember which interface socket the link has been redirected to. */ + reusable_sockets.add_new(link->fromsock, input_sock); + } +} + static void node_group_make_insert_selected(const bContext &C, bNodeTree &ntree, bNode *gnode) { Main *bmain = CTX_data_main(&C); @@ -834,6 +903,10 @@ static void node_group_make_insert_selected(const bContext &C, bNodeTree &ntree, output_node->locy = -offsety; /* relink external sockets */ + + /* A map from link sources to input sockets already connected. */ + Map<bNodeSocket *, bNodeSocket *> reusable_sockets; + LISTBASE_FOREACH_MUTABLE (bNodeLink *, link, &ntree.links) { const bool fromselect = node_group_make_use_node(*link->fromnode, gnode); const bool toselect = node_group_make_use_node(*link->tonode, gnode); @@ -851,24 +924,8 @@ static void node_group_make_insert_selected(const bContext &C, bNodeTree &ntree, continue; } - bNodeSocket *link_sock; - bNode *link_node; - node_socket_skip_reroutes(&ntree.links, link->tonode, link->tosock, &link_node, &link_sock); - bNodeSocket *iosock = ntreeAddSocketInterfaceFromSocket(ngroup, link_node, link_sock); - - /* update the group node and interface node sockets, - * so the new interface socket can be linked. - */ - node_group_update(&ntree, gnode); - node_group_input_update(ngroup, input_node); - - /* create new internal link */ - bNodeSocket *input_sock = node_group_input_find_socket(input_node, iosock->identifier); - nodeAddLink(ngroup, input_node, input_sock, link->tonode, link->tosock); - - /* redirect external link */ - link->tonode = gnode; - link->tosock = node_group_find_input_socket(gnode, iosock->identifier); + node_group_make_redirect_incoming_link( + ntree, ngroup, gnode, input_node, link, reusable_sockets); } else if (fromselect && !toselect) { /* Remove hidden links to not create unconnected sockets in the interface. */ |