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UV: path selection support

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This adds support for path selection for vertex edge & face selection
modes, matching mesh editing behavior, useful with the UV rip tool.

Region select & edge tagging are currently not supported,
although they could be added eventually.
This commit is contained in:
Campbell Barton
2020-07-07 17:29:17 +10:00
parent 0b8221683f
commit ea5fe7abc1
12 changed files with 1235 additions and 1 deletions
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63
source/blender/editors/uvedit/uvedit_select.c
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@@ -87,6 +87,59 @@ static void uv_select_tag_update_for_object(Depsgraph *depsgraph,
const ToolSettings *ts,
Object *obedit);
/* -------------------------------------------------------------------- */
/** \name Active Selection Tracking
*
* Currently we don't store loops in the selection history,
* store face/edge/vert combinations (needed for UV path selection).
* \{ */
void ED_uvedit_active_vert_loop_set(BMesh *bm, BMLoop *l)
{
BM_select_history_clear(bm);
BM_select_history_remove(bm, (BMElem *)l->f);
BM_select_history_remove(bm, (BMElem *)l->v);
BM_select_history_store_notest(bm, (BMElem *)l->f);
BM_select_history_store_notest(bm, (BMElem *)l->v);
}
BMLoop *ED_uvedit_active_vert_loop_get(BMesh *bm)
{
BMEditSelection *ese = bm->selected.last;
if (ese && ese->prev) {
BMEditSelection *ese_prev = ese->prev;
if ((ese->htype == BM_VERT) && (ese_prev->htype == BM_FACE)) {
/* May be NULL. */
return BM_face_vert_share_loop((BMFace *)ese_prev->ele, (BMVert *)ese->ele);
}
}
return NULL;
}
void ED_uvedit_active_edge_loop_set(BMesh *bm, BMLoop *l)
{
BM_select_history_clear(bm);
BM_select_history_remove(bm, (BMElem *)l->f);
BM_select_history_remove(bm, (BMElem *)l->e);
BM_select_history_store_notest(bm, (BMElem *)l->f);
BM_select_history_store_notest(bm, (BMElem *)l->e);
}
BMLoop *ED_uvedit_active_edge_loop_get(BMesh *bm)
{
BMEditSelection *ese = bm->selected.last;
if (ese && ese->prev) {
BMEditSelection *ese_prev = ese->prev;
if ((ese->htype == BM_EDGE) && (ese_prev->htype == BM_FACE)) {
/* May be NULL. */
return BM_face_edge_share_loop((BMFace *)ese_prev->ele, (BMEdge *)ese->ele);
}
}
return NULL;
}
/** \} */
/* -------------------------------------------------------------------- */
/** \name Visibility and Selection Utilities
* \{ */
@@ -1531,6 +1584,11 @@ static int uv_mouse_select_multi(bContext *C,
hituv[hit.lindex] = hit.luv->uv;
hitlen = hit.efa->len;
if ((ts->uv_flag & UV_SYNC_SELECTION) == 0) {
BMesh *bm = BKE_editmesh_from_object(hit.ob)->bm;
ED_uvedit_active_vert_loop_set(bm, hit.l);
}
}
}
else if (selectmode == UV_SELECT_EDGE) {
@@ -1550,6 +1608,11 @@ static int uv_mouse_select_multi(bContext *C,
hituv[(hit.lindex + 1) % hit.efa->len] = hit.luv_next->uv;
hitlen = hit.efa->len;
if ((ts->uv_flag & UV_SYNC_SELECTION) == 0) {
BMesh *bm = BKE_editmesh_from_object(hit.ob)->bm;
ED_uvedit_active_edge_loop_set(bm, hit.l);
}
}
}
else if (selectmode == UV_SELECT_FACE) {