From 91462fbb31baae85b7aa5e5a9ee3d70989ed93e1 Mon Sep 17 00:00:00 2001
From: Bastien Montagne <bastien@blender.org>
Date: Wed, 10 Jun 2020 18:39:27 +0200
Subject: Cleanup: Remove no more used `ED_object_single_users`.

This utils was only used for scenes' full copy, and was using old
deprecated ways to deal with ID relations and such. Good riddance!
---
 source/blender/editors/object/object_relations.c | 130 -----------------------
 1 file changed, 130 deletions(-)

(limited to 'source/blender/editors/object')

diff --git a/source/blender/editors/object/object_relations.c b/source/blender/editors/object/object_relations.c
index 0e8545e07ba..eed3f2ea90c 100644
--- a/source/blender/editors/object/object_relations.c
+++ b/source/blender/editors/object/object_relations.c
@@ -1853,27 +1853,6 @@ void ED_object_single_user(Main *bmain, Scene *scene, Object *ob)
   BKE_main_id_clear_newpoins(bmain);
 }
 
-static void new_id_matar(Main *bmain, Material **matar, const int totcol)
-{
-  ID *id;
-  int a;
-
-  for (a = 0; a < totcol; a++) {
-    id = (ID *)matar[a];
-    if (id && !ID_IS_LINKED(id)) {
-      if (id->newid) {
-        matar[a] = (Material *)id->newid;
-        id_us_plus(id->newid);
-        id_us_min(id);
-      }
-      else if (id->us > 1) {
-        matar[a] = ID_NEW_SET(id, BKE_material_copy(bmain, matar[a]));
-        id_us_min(id);
-      }
-    }
-  }
-}
-
 static void single_obdata_users(
     Main *bmain, Scene *scene, ViewLayer *view_layer, View3D *v3d, const int flag)
 {
@@ -2017,115 +1996,6 @@ static void single_mat_users(
   FOREACH_OBJECT_FLAG_END;
 }
 
-static void single_mat_users_expand(Main *bmain)
-{
-  /* only when 'parent' blocks are LIB_TAG_NEW */
-  Object *ob;
-  Mesh *me;
-  Curve *cu;
-  MetaBall *mb;
-  bGPdata *gpd;
-
-  for (ob = bmain->objects.first; ob; ob = ob->id.next) {
-    if (ob->id.tag & LIB_TAG_NEW) {
-      new_id_matar(bmain, ob->mat, ob->totcol);
-    }
-  }
-
-  for (me = bmain->meshes.first; me; me = me->id.next) {
-    if (me->id.tag & LIB_TAG_NEW) {
-      new_id_matar(bmain, me->mat, me->totcol);
-    }
-  }
-
-  for (cu = bmain->curves.first; cu; cu = cu->id.next) {
-    if (cu->id.tag & LIB_TAG_NEW) {
-      new_id_matar(bmain, cu->mat, cu->totcol);
-    }
-  }
-
-  for (mb = bmain->metaballs.first; mb; mb = mb->id.next) {
-    if (mb->id.tag & LIB_TAG_NEW) {
-      new_id_matar(bmain, mb->mat, mb->totcol);
-    }
-  }
-
-  for (gpd = bmain->gpencils.first; gpd; gpd = gpd->id.next) {
-    if (gpd->id.tag & LIB_TAG_NEW) {
-      new_id_matar(bmain, gpd->mat, gpd->totcol);
-    }
-  }
-}
-
-/* used for copying scenes */
-void ED_object_single_users(Main *bmain,
-                            Scene *scene,
-                            const bool full,
-                            const bool copy_collections)
-{
-  single_object_users(bmain, scene, NULL, 0, copy_collections);
-
-  if (full) {
-    single_obdata_users(bmain, scene, NULL, NULL, 0);
-    single_object_action_users(bmain, scene, NULL, NULL, 0);
-    single_mat_users_expand(bmain);
-
-    /* Duplicating obdata and other IDs may require another update of the collections and objects
-     * pointers, especially regarding drivers and custom props, see T66641.
-     * Note that this whole scene duplication code and 'make single user' functions have to be
-     * rewritten at some point to make use of proper modern ID management code,
-     * but that is no small task.
-     * For now we are doomed to that kind of band-aid to try to cover most of remapping cases. */
-
-    /* Will also handle the master collection. */
-    BKE_libblock_relink_to_newid(&scene->id);
-
-    /* Collection and object pointers in collections */
-    libblock_relink_collection(scene->master_collection, false);
-  }
-
-  /* Relink nodetrees' pointers that have been duplicated. */
-  FOREACH_NODETREE_BEGIN (bmain, ntree, id) {
-    /* This is a bit convoluted, we want to root ntree of copied IDs and only those,
-     * so we first check that old ID has been copied and that ntree is root tree of old ID,
-     * then get root tree of new ID and remap its pointers to new ID... */
-    if (id->newid && (&ntree->id != id)) {
-      ntree = ntreeFromID(id->newid);
-      BKE_libblock_relink_to_newid(&ntree->id);
-    }
-  }
-  FOREACH_NODETREE_END;
-
-  /* Relink datablock pointer properties */
-  {
-    IDP_RelinkProperty(scene->id.properties);
-
-    FOREACH_SCENE_OBJECT_BEGIN (scene, ob) {
-      if (!ID_IS_LINKED(ob)) {
-        IDP_RelinkProperty(ob->id.properties);
-      }
-    }
-    FOREACH_SCENE_OBJECT_END;
-
-    if (scene->nodetree) {
-      IDP_RelinkProperty(scene->nodetree->id.properties);
-      LISTBASE_FOREACH (bNode *, node, &scene->nodetree->nodes) {
-        IDP_RelinkProperty(node->prop);
-      }
-    }
-
-    if (scene->world) {
-      IDP_RelinkProperty(scene->world->id.properties);
-    }
-
-    if (scene->clip) {
-      IDP_RelinkProperty(scene->clip->id.properties);
-    }
-  }
-  BKE_main_id_clear_newpoins(bmain);
-  DEG_relations_tag_update(bmain);
-}
-
 /** \} */
 
 /* ------------------------------------------------------------------- */
-- 
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