Code Cleanup: move trans-verts out of snap code into their own file.

Developer Note:
* minmax & centroid was being calculated when creating trans-verts but never used.
* static vars removed, replace with TransVertStore stack var.

source/blender/editors/include/ED_transverts.h

@@ -0,0 +1,70 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2008 Blender Foundation.
+ * All rights reserved.
+ *
+ *
+ * Contributor(s): Blender Foundation
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file ED_transverts.h
+ *  \ingroup editors
+ */
+
+#ifndef __ED_TRANSVERTS_H__
+#define __ED_TRANSVERTS_H__
+
+struct Object;
+
+typedef struct TransVert {
+	float *loc;
+	float oldloc[3], maploc[3];
+	float *val, oldval;
+	int flag;
+} TransVert;
+
+typedef struct TransVertStore {
+	struct TransVert *transverts;
+	int transverts_tot;
+} TransVertStore;
+
+void ED_transverts_create_from_obedit(TransVertStore *tvs, struct Object *obedit, int mode);
+void ED_transverts_update_obedit(TransVertStore *tvs, struct Object *obedit);
+void ED_transverts_free(TransVertStore *tvs);
+bool ED_transverts_check_obedit(Object *obedit);
+
+/* currently only used for bmesh index values */
+enum {
+	TM_INDEX_ON      =  1,  /* tag to make trans verts */
+	TM_INDEX_OFF     =  0,  /* don't make verts */
+	TM_INDEX_SKIP    = -1   /* dont make verts (when the index values point to trans-verts) */
+};
+
+/* mode flags: */
+enum {
+	TM_ALL_JOINTS      = 1, /* all joints (for bones only) */
+	TM_SKIP_HANDLES    = 2  /* skip handles when control point is selected (for curves only) */
+};
+
+
+              /* SELECT == (1 << 0) */
+#define TX_VERT_USE_MAPLOC (1 << 1)
+
+#endif  /* __ED_TRANSVERTS_H__ */