1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.afp.fonts;
import java.awt.Rectangle;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.fop.fonts.FontType;
import org.apache.fop.fonts.Typeface;
/**
* All implementations of AFP fonts should extend this base class,
* the object implements the FontMetrics information.
* <p/>
*/
public abstract class AFPFont extends Typeface {
private static final double STRIKEOUT_POSITION_FACTOR = 0.45;
/** The font name */
protected final String name;
private final boolean embeddable;
/**
* Constructor for the base font requires the name.
* @param name the name of the font
* @param embeddable whether this font is to be embedded
*/
public AFPFont(String name, boolean embeddable) {
this.name = name;
this.embeddable = embeddable;
}
/** {@inheritDoc} */
public String getFontName() {
return this.name;
}
/** {@inheritDoc} */
public String getEmbedFontName() {
return this.name;
}
/** {@inheritDoc} */
public String getFullName() {
return getFontName();
}
/** {@inheritDoc} */
public Set<String> getFamilyNames() {
Set<String> s = new HashSet<String>();
s.add(this.name);
return s;
}
/**
* Returns the type of the font.
* @return the font type
*/
public FontType getFontType() {
return FontType.OTHER;
}
/**
* Indicates if the font has kerning information.
* @return True, if kerning is available.
*/
public boolean hasKerningInfo() {
return false;
}
/**
* Returns the kerning map for the font.
* @return the kerning map
*/
public Map<Integer, Map<Integer, Integer>> getKerningInfo() {
return null;
}
/**
* Returns the character set for a given size
* @param size the font size
* @return the character set object
*/
public abstract CharacterSet getCharacterSet(int size);
/**
* Indicates if this font may be embedded.
* @return True, if embedding is possible/permitted
*/
public boolean isEmbeddable() {
return this.embeddable;
}
/**
* Maps mapped code points to Unicode code points.
* @param character the mapped code point
* @return the corresponding Unicode code point
*/
protected static final char toUnicodeCodepoint(int character) {
//AFP fonts use Unicode directly as their mapped code points, so we can simply cast to char
return (char) character;
}
/** {@inheritDoc} */
public int getUnderlineThickness(int size) {
// This is the FOCA recommendation in the absence of the Underline Thickness parameter
return getBoundingBox('-', size).height;
}
/** {@inheritDoc} */
public int getStrikeoutPosition(int size) {
//TODO This conflicts with the FOCA recommendation of 0 in the absence of the Throughscore Position
// parameter
return (int) (STRIKEOUT_POSITION_FACTOR * getCapHeight(size));
}
/** {@inheritDoc} */
public int getStrikeoutThickness(int size) {
// This is the FOCA recommendation in the absence of the Throughscore Thickness parameter
return getBoundingBox('-', size).height;
}
/** {@inheritDoc} */
public abstract Rectangle getBoundingBox(int glyphIndex, int size);
/** {@inheritDoc} */
public int[] getWidths() {
throw new UnsupportedOperationException();
}
/** {@inheritDoc} */
public String toString() {
return "name=" + name;
}
}
|
