From 7f351d3b96356ca6cd57ecc4dec021ad2989f58d Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Fri, 21 Sep 2012 21:43:56 +0000
Subject: [PATCH] add back clear skin operator, removed with sticky by mistake.

---
 source/blender/editors/mesh/mesh_data.c   | 36 +++++++++++++++++++++++
 source/blender/editors/mesh/mesh_intern.h |  1 +
 source/blender/editors/mesh/mesh_ops.c    |  1 +
 3 files changed, 38 insertions(+)

diff --git a/source/blender/editors/mesh/mesh_data.c b/source/blender/editors/mesh/mesh_data.c
index 7f45d3abcbc..60df657a436 100644
--- a/source/blender/editors/mesh/mesh_data.c
+++ b/source/blender/editors/mesh/mesh_data.c
@@ -810,6 +810,42 @@ void MESH_OT_customdata_clear_mask(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
+/* Clear Skin */
+static int mesh_customdata_clear_skin_poll(bContext *C)
+{
+	Object *ob = ED_object_context(C);
+
+	if (ob && ob->type == OB_MESH) {
+		Mesh *me = ob->data;
+		if (me->id.lib == NULL) {
+			CustomData *data = GET_CD_DATA(me, vdata);
+			if (CustomData_has_layer(data, CD_MVERT_SKIN)) {
+				return TRUE;
+			}
+		}
+	}
+	return FALSE;
+}
+static int mesh_customdata_clear_skin_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	return mesh_customdata_clear_exec__internal(C, BM_VERT, CD_MVERT_SKIN);
+}
+
+void MESH_OT_customdata_clear_skin(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Clear Skin Data";
+	ot->idname = "MESH_OT_customdata_clear_skin";
+	ot->description = "Clear vertex skin layer";
+
+	/* api callbacks */
+	ot->exec = mesh_customdata_clear_skin_exec;
+	ot->poll = mesh_customdata_clear_skin_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
 /************************** Add Geometry Layers *************************/
 
 void ED_mesh_update(Mesh *mesh, bContext *C, int calc_edges, int calc_tessface)
diff --git a/source/blender/editors/mesh/mesh_intern.h b/source/blender/editors/mesh/mesh_intern.h
index 786910dc938..de594b87e2c 100644
--- a/source/blender/editors/mesh/mesh_intern.h
+++ b/source/blender/editors/mesh/mesh_intern.h
@@ -189,6 +189,7 @@ void MESH_OT_vertex_color_add(struct wmOperatorType *ot);
 void MESH_OT_vertex_color_remove(struct wmOperatorType *ot);
 /* no create_mask yet */
 void MESH_OT_customdata_clear_mask(struct wmOperatorType *ot);
+void MESH_OT_customdata_clear_skin(struct wmOperatorType *ot);
 
 void MESH_OT_drop_named_image(struct wmOperatorType *ot);
 
diff --git a/source/blender/editors/mesh/mesh_ops.c b/source/blender/editors/mesh/mesh_ops.c
index 3c92df3dc8e..3ac8719f304 100644
--- a/source/blender/editors/mesh/mesh_ops.c
+++ b/source/blender/editors/mesh/mesh_ops.c
@@ -143,6 +143,7 @@ void ED_operatortypes_mesh(void)
 	WM_operatortype_append(MESH_OT_vertex_color_add);
 	WM_operatortype_append(MESH_OT_vertex_color_remove);
 	WM_operatortype_append(MESH_OT_customdata_clear_mask);
+	WM_operatortype_append(MESH_OT_customdata_clear_skin);
 	WM_operatortype_append(MESH_OT_drop_named_image);
 
 	WM_operatortype_append(MESH_OT_edgering_select);