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
|
/*
* Braille Utils (C) 2010-2011 Daisy Consortium
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com_braillo;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.List;
import org.daisy.braille.embosser.VolumeWriter;
/**
* Provides a volume writer for Braillo embossers.
* Note that, this volume writer assumes LineBreaks.Type.DOS
* and Padding.BEFORE.
* @author Joel Håkansson
*
*/
public abstract class BrailloVolumeWriter implements VolumeWriter {
public final static byte[] ffSeq = new byte[]{'\r', '\n', 0x0c};
public abstract List<? extends List<Byte>> reorder(List<? extends List<Byte>> pages);
public abstract byte[] getHeader(int pages) throws IOException;
public abstract byte[] getFooter(int pages) throws IOException;
public boolean write(List<? extends List<Byte>> input, File out) throws IOException {
FileOutputStream os = new FileOutputStream(out);
List<? extends List<Byte>> pages = reorder(input);
int len = pages.size();
os.write(getHeader(len));
//write contents
// debug: int j = 1;
for (List<Byte> page : pages) {
byte[] b = new byte[page.size()];
for (int i=0; i<page.size(); i++) {
b[i] = page.get(i);
}
// debug: os.write(("---- page --- " + j + " [").getBytes());
os.write(b);
// debug: os.write("]--- page ---- ".getBytes());
// debug: j++;
}
os.write(getFooter(len));
os.close();
return true;
}
public boolean supportsVolumes() {
return true;
}
}
|
