1 /*
2  * Copyright (C) 2008 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.inject.grapher.graphviz;
18 
19 /**
20  * Arrow symbols that are available from Graphviz. These can be composed by concatenation to make
21  * double arrows and such.
22  *
23  * <p>See: http://www.graphviz.org/doc/info/arrows.html
24  *
25  * @author phopkins@gmail.com (Pete Hopkins)
26  */
27 public enum ArrowType {
28   BOX("box"),
29   BOX_OPEN("obox"),
30   CROW("crow"),
31   DIAMOND("diamond"),
32   DIAMOND_OPEN("odiamond"),
33   DOT("dot"),
34   DOT_OPEN("odot"),
35   INVERTED("inv"),
36   INVERTED_OPEN("oinv"),
37   NONE("none"),
38   NORMAL("normal"),
39   NORMAL_OPEN("onormal"),
40   TEE("tee"),
41   VEE("vee");
42 
43   private final String arrowType;
44 
ArrowType(String arrowType)45   ArrowType(String arrowType) {
46     this.arrowType = arrowType;
47   }
48 
49   @Override
toString()50   public String toString() {
51     return arrowType;
52   }
53 }
54