From cdbb61704d7edb9e67452b848b1eebcb3f4b0ae7 Mon Sep 17 00:00:00 2001 From: Campbell Barton Date: Tue, 7 Apr 2020 17:43:27 +1000 Subject: Fix T75128: Select Linked fails when the selection is a delimiter Starting select linked failed when the selected vertex or edge was it's self delimiting. Support using these elements for linked select as long as they're part of an isolated selection. --- source/blender/editors/mesh/editmesh_select.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'source/blender/editors/mesh/editmesh_select.c') diff --git a/source/blender/editors/mesh/editmesh_select.c b/source/blender/editors/mesh/editmesh_select.c index f01511fa513..3847f32b19a 100644 --- a/source/blender/editors/mesh/editmesh_select.c +++ b/source/blender/editors/mesh/editmesh_select.c @@ -3201,8 +3201,12 @@ static int edbm_select_linked_exec(bContext *C, wmOperator *op) BMEdge *e; BM_ITER_MESH (e, &iter, em->bm, BM_EDGES_OF_MESH) { if (!BMO_edge_flag_test(bm, e, BMO_ELE_TAG)) { - BM_elem_flag_disable(e->v1, BM_ELEM_TAG); - BM_elem_flag_disable(e->v2, BM_ELEM_TAG); + /* Check the edge for selected faces, + * this supports stepping off isolated vertices which would otherwise be ignored. */ + if (BM_edge_is_any_face_flag_test(e, BM_ELEM_SELECT)) { + BM_elem_flag_disable(e->v1, BM_ELEM_TAG); + BM_elem_flag_disable(e->v2, BM_ELEM_TAG); + } } } } @@ -3258,10 +3262,13 @@ static int edbm_select_linked_exec(bContext *C, wmOperator *op) if (delimit) { BM_ITER_MESH (e, &iter, em->bm, BM_EDGES_OF_MESH) { - BM_elem_flag_set( - e, - BM_ELEM_TAG, - (BM_elem_flag_test(e, BM_ELEM_SELECT) && BMO_edge_flag_test(bm, e, BMO_ELE_TAG))); + /* Check the edge for selected faces, + * this supports stepping off isolated edges which would otherwise be ignored. */ + BM_elem_flag_set(e, + BM_ELEM_TAG, + (BM_elem_flag_test(e, BM_ELEM_SELECT) && + (BMO_edge_flag_test(bm, e, BMO_ELE_TAG) || + !BM_edge_is_any_face_flag_test(e, BM_ELEM_SELECT)))); } } else { -- cgit v1.2.3