Fix T44560: Merge Collapse tool - UVs operator panel option ignored with Collapse but not with other merge types.

Was missing parameter for collapse bmesh operator...

3 files changed, 7 insertions, 3 deletions

diff --git a/source/blender/bmesh/intern/bmesh_opdefines.c b/source/blender/bmesh/intern/bmesh_opdefines.c
index d0679b9919a..2ba65f5a1e7 100644
--- a/source/blender/bmesh/intern/bmesh_opdefines.c
+++ b/source/blender/bmesh/intern/bmesh_opdefines.c
@@ -359,6 +359,7 @@ static BMOpDefine bmo_collapse_def = {
 	"collapse",
 	/* slots_in */
 	{{"edges", BMO_OP_SLOT_ELEMENT_BUF, {BM_EDGE}}, /* input edges */
+	 {"uvs", BMO_OP_SLOT_BOOL}, /* also collapse UVs and such */
 	 {{'\0'}},
 	},
 	{{{'\0'}}},  /* no output */
diff --git a/source/blender/bmesh/operators/bmo_dissolve.c b/source/blender/bmesh/operators/bmo_dissolve.c
index ecb41363761..ac0466a74d2 100644
--- a/source/blender/bmesh/operators/bmo_dissolve.c
+++ b/source/blender/bmesh/operators/bmo_dissolve.c
@@ -494,7 +494,7 @@ void bmo_dissolve_limit_exec(BMesh *bm, BMOperator *op)
 
 static void bm_mesh_edge_collapse_flagged(BMesh *bm, const int flag, const short oflag)
 {
-	BMO_op_callf(bm, flag, "collapse edges=%fe", oflag);
+	BMO_op_callf(bm, flag, "collapse edges=%fe uvs=%b", oflag, true);
 }
 
 void bmo_dissolve_degenerate_exec(BMesh *bm, BMOperator *op)
diff --git a/source/blender/bmesh/operators/bmo_removedoubles.c b/source/blender/bmesh/operators/bmo_removedoubles.c
index 871bee64c19..73b6268e78b 100644
--- a/source/blender/bmesh/operators/bmo_removedoubles.c
+++ b/source/blender/bmesh/operators/bmo_removedoubles.c
@@ -380,8 +380,11 @@ void bmo_collapse_exec(BMesh *bm, BMOperator *op)
 	float min[3], max[3], center[3];
 	unsigned int i, tot;
 	BMOpSlot *slot_targetmap;
-	
-	BMO_op_callf(bm, op->flag, "collapse_uvs edges=%s", op, "edges");
+
+	if (BMO_slot_bool_get(op->slots_in, "uvs")) {
+		BMO_op_callf(bm, op->flag, "collapse_uvs edges=%s", op, "edges");
+	}
+
 	BMO_op_init(bm, &weldop, op->flag, "weld_verts");
 	slot_targetmap = BMO_slot_get(weldop.slots_in, "targetmap");