diff options
author | Campbell Barton <ideasman42@gmail.com> | 2019-01-17 04:34:05 +0300 |
---|---|---|
committer | Campbell Barton <ideasman42@gmail.com> | 2019-01-17 04:36:17 +0300 |
commit | 2f372654b6f30a643a5c448895d2ffae536c86c5 (patch) | |
tree | 0e539d83059b060150d5403d0846e811ee46f6c1 /source/blender/bmesh/operators | |
parent | 371006ddea9ef3df7b1e8c83ad28bd41bc833f87 (diff) |
BMesh: keep selection history when removing doubles
Auto-merge would loose the active vertex.
Diffstat (limited to 'source/blender/bmesh/operators')
-rw-r--r-- | source/blender/bmesh/operators/bmo_removedoubles.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/source/blender/bmesh/operators/bmo_removedoubles.c b/source/blender/bmesh/operators/bmo_removedoubles.c index ed06090bb79..d096642a62a 100644 --- a/source/blender/bmesh/operators/bmo_removedoubles.c +++ b/source/blender/bmesh/operators/bmo_removedoubles.c @@ -31,6 +31,7 @@ #include "BLI_math.h" #include "BLI_alloca.h" #include "BLI_kdtree.h" +#include "BLI_listbase.h" #include "BLI_utildefines_stack.h" #include "BLI_stack.h" @@ -199,6 +200,15 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op) BMFace *f; BMOpSlot *slot_targetmap = BMO_slot_get(op->slots_in, "targetmap"); + /* Maintain selection history. */ + const bool has_selected = !BLI_listbase_is_empty(&bm->selected); + const bool use_targetmap_all = has_selected; + GHash *targetmap_all = NULL; + if (use_targetmap_all) { + /* Map deleted to keep elem. */ + targetmap_all = BLI_ghash_ptr_new(__func__); + } + /* mark merge verts for deletion */ BM_ITER_MESH (v, &iter, bm, BM_VERTS_OF_MESH) { BMVert *v_dst = BMO_slot_map_elem_get(slot_targetmap, v); @@ -207,6 +217,11 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op) /* merge the vertex flags, else we get randomly selected/unselected verts */ BM_elem_flag_merge_ex(v, v_dst, BM_ELEM_HIDDEN); + + if (use_targetmap_all) { + BLI_assert(v != v_dst); + BLI_ghash_insert(targetmap_all, v, v_dst); + } } } @@ -237,6 +252,10 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op) e_new = BM_edge_create(bm, v1, v2, e, BM_CREATE_NOP); } BM_elem_flag_merge_ex(e_new, e, BM_ELEM_HIDDEN); + if (use_targetmap_all) { + BLI_assert(e != e_new); + BLI_ghash_insert(targetmap_all, e, e_new); + } } BMO_edge_flag_enable(bm, e, ELE_DEL); @@ -259,12 +278,13 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op) } if (vert_delete) { + bool use_in_place = false; + BMFace *f_new = NULL; BMO_face_flag_enable(bm, f, ELE_DEL); if (f->len - edge_collapse >= 3) { bool created; - BMFace *f_new = remdoubles_createface(bm, f, slot_targetmap, &created); - + f_new = remdoubles_createface(bm, f, slot_targetmap, &created); /* do this so we don't need to return a list of created faces */ if (f_new) { if (created) { @@ -276,15 +296,34 @@ void bmo_weld_verts_exec(BMesh *bm, BMOperator *op) BMO_face_flag_disable(bm, f, ELE_DEL); BM_face_kill(bm, f_new); + use_in_place = true; } else { BM_elem_flag_merge_ex(f_new, f, BM_ELEM_HIDDEN); } } } + + if ((use_in_place == false) && (f_new != NULL)) { + BLI_assert(f != f_new); + if (use_targetmap_all) { + BLI_ghash_insert(targetmap_all, f, f_new); + } + if (bm->act_face && (f == bm->act_face)) { + bm->act_face = f_new; + } + } } } + if (has_selected) { + BM_select_history_merge_from_targetmap(bm, targetmap_all, targetmap_all, targetmap_all, true); + } + + if (use_targetmap_all) { + BLI_ghash_free(targetmap_all, NULL, NULL); + } + BMO_mesh_delete_oflag_context(bm, ELE_DEL, DEL_ONLYTAGGED); } |