1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.fontbox.cff.encoding;
18
19 import java.util.ArrayList;
20 import java.util.List;
21
22 /**
23 * This is the superclass for all CFFFont encodings.
24 *
25 * @author Villu Ruusmann
26 * @version $Revision$
27 */
28 public abstract class CFFEncoding
29 {
30
31 private List<Entry> entries = new ArrayList<Entry>();
32
33 /**
34 * Determines if the encoding is font specific or not.
35 * @return if the encoding is font specific
36 */
37 public boolean isFontSpecific()
38 {
39 return false;
40 }
41
42 /**
43 * Returns the code corresponding to the given SID.
44 * @param sid the given SID
45 * @return the corresponding code
46 */
47 public int getCode(int sid)
48 {
49 for(Entry entry : entries)
50 {
51 if(entry.entrySID == sid)
52 {
53 return entry.entryCode;
54 }
55 }
56 return -1;
57 }
58
59 /**
60 * Returns the SID corresponding to the given code.
61 * @param code the given code
62 * @return the corresponding SID
63 */
64 public int getSID(int code)
65 {
66 for(Entry entry : entries)
67 {
68 if(entry.entryCode == code)
69 {
70 return entry.entrySID;
71 }
72 }
73 return -1;
74 }
75
76 /**
77 * Adds a new code/SID combination to the encoding.
78 * @param code the given code
79 * @param sid the given SID
80 */
81 public void register(int code, int sid)
82 {
83 entries.add(new Entry(code, sid));
84 }
85
86 /**
87 * A list of all entries within this encoding.
88 * @return a list of all entries
89 */
90 public List<Entry> getEntries()
91 {
92 return entries;
93 }
94
95 /**
96 * This class represents a single code/SID mapping of the encoding.
97 *
98 */
99 public static class Entry
100 {
101 private int entryCode;
102 private int entrySID;
103
104 /**
105 * Create a new instance of Entry with the given values.
106 * @param code the code
107 * @param sid the SID
108 */
109 protected Entry(int code, int sid)
110 {
111 this.entryCode = code;
112 this.entrySID = sid;
113 }
114
115 /**
116 * The code of the entry.
117 * @return the code
118 */
119 public int getCode()
120 {
121 return this.entryCode;
122 }
123
124 /**
125 * The SID of the entry.
126 * @return the SID
127 */
128 public int getSID()
129 {
130 return this.entrySID;
131 }
132
133 /**
134 * {@inheritDoc}
135 */
136 public String toString()
137 {
138 return "[code=" + entryCode + ", sid=" + entrySID + "]";
139 }
140 }
141 }