blob: a2f3c91bbbd5a65e2ae6390ddec629ce024db019 (
plain)
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
|
/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.pdf;
// Java
import java.io.PrintWriter;
import org.apache.fop.messaging.MessageHandler;
import java.util.ArrayList;
/**
* class representing a /Pages object.
*
* A /Pages object is an ordered collection of pages (/Page objects)
* (Actually, /Pages can contain further /Pages as well but this
* implementation doesn't allow this)
*/
public class PDFPages extends PDFObject {
/**
* the /Page objects
*/
protected ArrayList kids = new ArrayList();
/**
* the number of /Page objects
*/
protected int count = 0;
// private PDFPages parent;
/**
* create a /Pages object. NOTE: The PDFPages
* object must be created before the PDF document is
* generated, but it is not written to the stream immediately.
* It must aslo be allocated an object ID (so that the kids
* can refer to the parent) so that the XRef table needs to
* be updated before this object is written.
*
* @param number the object's number
*/
public PDFPages(int number) {
super(number);
}
/**
* add a /Page object.
*
* @param page the PDFPage to add.
*/
public void addPage(PDFPage page) {
this.kids.add(page.referencePDF());
page.setParent(this);
this.incrementCount();
}
/**
* get the count of /Page objects
*
* @return the number of pages
*/
public int getCount() {
return this.count;
}
/**
* increment the count of /Page objects
*/
public void incrementCount() {
this.count++;
// MessageHandler.logln("Incrementing count to " + this.getCount());
}
/**
* represent the object in PDF
*
* @return the PDF string
*/
public byte[] toPDF() {
StringBuffer p = new StringBuffer(this.number + " " + this.generation
+ " obj\n<< /Type /Pages\n/Count "
+ this.getCount() + "\n/Kids [");
for (int i = 0; i < kids.size(); i++) {
p = p.append(kids.get(i) + " ");
}
p = p.append("] >>\nendobj\n");
return p.toString().getBytes();
}
}
|
