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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/**
* Copyright 2010-2023 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.graph.font;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.PrivilegedAction;
import com.jogamp.common.net.Uri;
import com.jogamp.common.util.IOUtil;
import com.jogamp.common.util.PropertyAccess;
import com.jogamp.common.util.ReflectionUtil;
import com.jogamp.common.util.SecurityUtil;
import com.jogamp.common.util.cache.TempJarCache;
import jogamp.graph.font.FontConstructor;
import jogamp.graph.font.JavaFontLoader;
import jogamp.graph.font.UbuntuFontLoader;
/**
* The optional property <i>jogamp.graph.font.ctor</i>
* allows user to specify the {@link FontConstructor} implementation.
* <p>
* Default {@link FontConstructor} is {@link jogamp.graph.font.typecast.TypecastFontConstructor},
* i.e. using our internal <i>typecast</i> branch.
* </p>
*/
public class FontFactory {
private static final String FontConstructorPropKey = "jogamp.graph.font.ctor";
private static final String DefaultFontConstructor = "jogamp.graph.font.typecast.TypecastFontConstructor";
/** Ubuntu is the default font family, {@value} */
public static final int UBUNTU = 0;
/** Java fonts are optional, {@value} */
public static final int JAVA = 1;
private static final FontConstructor fontConstr;
static {
/**
* For example:
* "jogamp.graph.font.typecast.TypecastFontFactory" (default)
* "jogamp.graph.font.ttf.TTFFontImpl"
*/
String fontImplName = PropertyAccess.getProperty(FontConstructorPropKey, true);
if(null == fontImplName) {
fontImplName = DefaultFontConstructor;
}
fontConstr = (FontConstructor) ReflectionUtil.createInstance(fontImplName, FontFactory.class.getClassLoader());
}
public static final FontSet getDefault() {
return get(UBUNTU);
}
public static final FontSet get(final int font) {
switch (font) {
case JAVA:
return JavaFontLoader.get();
default:
return UbuntuFontLoader.get();
}
}
/**
* Creates a Font instance.
* @param file font file
* @return the new Font instance
* @throws IOException
*/
public static final Font get(final File file) throws IOException {
return fontConstr.create(file);
}
/**
* Creates a Font instance based on a determinated font stream with its given length
* of the font segment.
* <p>
* No explicit stream copy is performed as in {@link #get(InputStream, boolean)}
* due to the known {@code streamLen}.
* </p>
* @param stream font stream
* @param streamLen length of the font segment within this font stream
* @param closeStream {@code true} to close the {@code stream}
* @return the new Font instance
* @throws IOException
*/
public static final Font get(final InputStream stream, final int streamLen, final boolean closeStream) throws IOException {
try {
return fontConstr.create(stream, streamLen);
} finally {
if( closeStream ) {
stream.close();
}
}
}
/**
* Creates a Font instance based on an undeterminated font stream length.
* <p>
* The font stream is temporarily copied into a temp file
* to gather it's size and to gain random access.
* The temporary file will be deleted at exit.
* </p>
* @param stream dedicated font stream
* @param closeStream {@code true} to close the {@code stream}
* @return the new Font instance
* @throws IOException
*/
public static final Font get(final InputStream stream, final boolean closeStream) throws IOException {
final IOException[] ioe = { null };
final int[] streamLen = { 0 };
final File tempFile[] = { null };
final InputStream bis = SecurityUtil.doPrivileged(new PrivilegedAction<InputStream>() {
@Override
public InputStream run() {
InputStream bis = null;
try {
tempFile[0] = IOUtil.createTempFile( "jogl.font", ".ttf", false);
streamLen[0] = IOUtil.copyStream2File(stream, tempFile[0]);
if( 0 == streamLen[0] ) {
throw new IOException("Font stream has zero bytes");
}
bis = new BufferedInputStream(new FileInputStream(tempFile[0]), streamLen[0]);
} catch (final IOException e) {
ioe[0] = e;
if( null != tempFile[0] ) {
tempFile[0].delete();
tempFile[0] = null;
}
streamLen[0] = 0;
} finally {
if( closeStream ) {
IOUtil.close(stream, ioe, System.err);
}
}
return bis;
} });
if( null != ioe[0] ) {
throw ioe[0];
}
if( null == bis ) {
throw new IOException("Could not cache font stream"); // should not be reached
}
try {
return fontConstr.create(bis, streamLen[0]);
} finally {
if( null != bis ) {
bis.close();
}
if( null != tempFile[0] ) {
SecurityUtil.doPrivileged(new PrivilegedAction<Object>() {
@Override
public Object run() {
tempFile[0].delete();
return null;
} } );
}
}
}
public static final Font get(final Class<?> context, final String fname, final boolean useTempJarCache) throws IOException {
InputStream stream = null;
if( useTempJarCache ) {
try {
final Uri uri = TempJarCache.getResourceUri(fname);
stream = null != uri ? uri.toURL().openConnection().getInputStream() : null;
} catch (final Exception e) {
throw new IOException(e);
}
} else {
stream = IOUtil.getResource(fname, context.getClassLoader(), context).getInputStream();
}
if( null != stream ) {
return FontFactory.get ( stream, true ) ;
}
return null;
}
public static boolean isPrintableChar( final char c ) {
if( Character.isWhitespace(c) ) {
return true;
}
if( 0 == c || Character.isISOControl(c) ) {
return false;
}
final Character.UnicodeBlock block = Character.UnicodeBlock.of( c );
return block != null && block != Character.UnicodeBlock.SPECIALS;
}
}
|
